openwrt/toolchain/musl/patches/000-update-to-git-2016-01-30.patch

--- a/.gitignore
+++ b/.gitignore
@@ -5,9 +5,6 @@
 *.so.1
 arch/*/bits/alltypes.h
 config.mak
-include/bits
-tools/musl-gcc
-tools/musl-clang
-tools/ld.musl-clang
 lib/musl-gcc.specs
 src/internal/version.h
+/obj/
--- a/Makefile
+++ b/Makefile
@@ -8,6 +8,7 @@
 # Do not make changes here.
 #
 
+srcdir = .
 exec_prefix = /usr/local
 bindir = $(exec_prefix)/bin
 
@@ -16,31 +17,42 @@ includedir = $(prefix)/include
 libdir = $(prefix)/lib
 syslibdir = /lib
 
-SRCS = $(sort $(wildcard src/*/*.c arch/$(ARCH)/src/*.c))
-OBJS = $(SRCS:.c=.o)
+BASE_SRCS = $(sort $(wildcard $(srcdir)/src/*/*.c))
+BASE_OBJS = $(patsubst $(srcdir)/%,%.o,$(basename $(BASE_SRCS)))
+ARCH_SRCS = $(wildcard $(srcdir)/src/*/$(ARCH)/*.[csS])
+ARCH_OBJS = $(patsubst $(srcdir)/%,%.o,$(basename $(ARCH_SRCS)))
+REPLACED_OBJS = $(sort $(subst /$(ARCH)/,/,$(ARCH_OBJS)))
+LDSO_SRCS = $(sort $(wildcard $(srcdir)/ldso/*.c))
+LDSO_OBJS = $(patsubst $(srcdir)/%,obj/%.lo,$(basename $(LDSO_SRCS)))
+OBJS = $(addprefix obj/, $(filter-out $(REPLACED_OBJS), $(sort $(BASE_OBJS) $(ARCH_OBJS))))
+AOBJS = $(OBJS)
 LOBJS = $(OBJS:.o=.lo)
-GENH = include/bits/alltypes.h
-GENH_INT = src/internal/version.h
-IMPH = src/internal/stdio_impl.h src/internal/pthread_impl.h src/internal/libc.h
+GENH = obj/include/bits/alltypes.h
+GENH_INT = obj/src/internal/version.h
+IMPH = $(addprefix $(srcdir)/, src/internal/stdio_impl.h src/internal/pthread_impl.h src/internal/libc.h)
 
-LDFLAGS = 
+LDFLAGS =
+LDFLAGS_AUTO =
 LIBCC = -lgcc
 CPPFLAGS =
-CFLAGS = -Os -pipe
+CFLAGS =
+CFLAGS_AUTO = -Os -pipe
 CFLAGS_C99FSE = -std=c99 -ffreestanding -nostdinc 
 
 CFLAGS_ALL = $(CFLAGS_C99FSE)
-CFLAGS_ALL += -D_XOPEN_SOURCE=700 -I./arch/$(ARCH) -I./src/internal -I./include
-CFLAGS_ALL += $(CPPFLAGS) $(CFLAGS)
-CFLAGS_ALL_STATIC = $(CFLAGS_ALL)
-CFLAGS_ALL_SHARED = $(CFLAGS_ALL) -fPIC -DSHARED
+CFLAGS_ALL += -D_XOPEN_SOURCE=700 -I$(srcdir)/arch/$(ARCH) -I$(srcdir)/arch/generic -Iobj/src/internal -I$(srcdir)/src/internal -Iobj/include -I$(srcdir)/include
+CFLAGS_ALL += $(CPPFLAGS) $(CFLAGS_AUTO) $(CFLAGS)
+
+LDFLAGS_ALL = $(LDFLAGS_AUTO) $(LDFLAGS)
 
 AR      = $(CROSS_COMPILE)ar
 RANLIB  = $(CROSS_COMPILE)ranlib
-INSTALL = ./tools/install.sh
+INSTALL = $(srcdir)/tools/install.sh
 
-ARCH_INCLUDES = $(wildcard arch/$(ARCH)/bits/*.h)
-ALL_INCLUDES = $(sort $(wildcard include/*.h include/*/*.h) $(GENH) $(ARCH_INCLUDES:arch/$(ARCH)/%=include/%))
+ARCH_INCLUDES = $(wildcard $(srcdir)/arch/$(ARCH)/bits/*.h)
+GENERIC_INCLUDES = $(wildcard $(srcdir)/arch/generic/bits/*.h)
+INCLUDES = $(wildcard $(srcdir)/include/*.h $(srcdir)/include/*/*.h)
+ALL_INCLUDES = $(sort $(INCLUDES:$(srcdir)/%=%) $(GENH:obj/%=%) $(ARCH_INCLUDES:$(srcdir)/arch/$(ARCH)/%=include/%) $(GENERIC_INCLUDES:$(srcdir)/arch/generic/%=include/%))
 
 EMPTY_LIB_NAMES = m rt pthread crypt util xnet resolv dl
 EMPTY_LIBS = $(EMPTY_LIB_NAMES:%=lib/lib%.a)
@@ -49,7 +61,7 @@ STATIC_LIBS = lib/libc.a
 SHARED_LIBS = lib/libc.so
 TOOL_LIBS = lib/musl-gcc.specs
 ALL_LIBS = $(CRT_LIBS) $(STATIC_LIBS) $(SHARED_LIBS) $(EMPTY_LIBS) $(TOOL_LIBS)
-ALL_TOOLS = tools/musl-gcc
+ALL_TOOLS = obj/musl-gcc
 
 WRAPCC_GCC = gcc
 WRAPCC_CLANG = clang
@@ -58,122 +70,128 @@ LDSO_PATHNAME = $(syslibdir)/ld-musl-$(A
 
 -include config.mak
 
+ifeq ($(ARCH),)
+$(error Please set ARCH in config.mak before running make.)
+endif
+
 all: $(ALL_LIBS) $(ALL_TOOLS)
 
+OBJ_DIRS = $(sort $(patsubst %/,%,$(dir $(ALL_LIBS) $(ALL_TOOLS) $(OBJS) $(LDSO_OBJS) $(GENH) $(GENH_INT))) $(addprefix obj/, crt crt/$(ARCH) include))
+
+$(ALL_LIBS) $(ALL_TOOLS) $(CRT_LIBS:lib/%=obj/crt/%) $(OBJS) $(LOBJS) $(GENH) $(GENH_INT): | $(OBJ_DIRS)
+
+$(OBJ_DIRS):
+	mkdir -p $@
+
 install: install-libs install-headers install-tools
 
 clean:
-	rm -f crt/*.o
-	rm -f $(OBJS)
-	rm -f $(LOBJS)
-	rm -f $(ALL_LIBS) lib/*.[ao] lib/*.so
-	rm -f $(ALL_TOOLS)
-	rm -f $(GENH) $(GENH_INT)
-	rm -f include/bits
+	rm -rf obj lib
 
 distclean: clean
 	rm -f config.mak
 
-include/bits:
-	@test "$(ARCH)" || { echo "Please set ARCH in config.mak before running make." ; exit 1 ; }
-	ln -sf ../arch/$(ARCH)/bits $@
+obj/include/bits/alltypes.h: $(srcdir)/arch/$(ARCH)/bits/alltypes.h.in $(srcdir)/include/alltypes.h.in $(srcdir)/tools/mkalltypes.sed
+	sed -f $(srcdir)/tools/mkalltypes.sed $(srcdir)/arch/$(ARCH)/bits/alltypes.h.in $(srcdir)/include/alltypes.h.in > $@
 
-include/bits/alltypes.h.in: include/bits
+obj/src/internal/version.h: $(wildcard $(srcdir)/VERSION $(srcdir)/.git)
+	printf '#define VERSION "%s"\n' "$$(cd $(srcdir); sh tools/version.sh)" > $@
 
-include/bits/alltypes.h: include/bits/alltypes.h.in include/alltypes.h.in tools/mkalltypes.sed
-	sed -f tools/mkalltypes.sed include/bits/alltypes.h.in include/alltypes.h.in > $@
+obj/src/internal/version.o obj/src/internal/version.lo: obj/src/internal/version.h
 
-src/internal/version.h: $(wildcard VERSION .git)
-	printf '#define VERSION "%s"\n' "$$(sh tools/version.sh)" > $@
+obj/crt/rcrt1.o obj/ldso/dlstart.lo obj/ldso/dynlink.lo: $(srcdir)/src/internal/dynlink.h $(srcdir)/arch/$(ARCH)/reloc.h
 
-src/internal/version.lo: src/internal/version.h
+obj/crt/crt1.o obj/crt/scrt1.o obj/crt/rcrt1.o obj/ldso/dlstart.lo: $(srcdir)/arch/$(ARCH)/crt_arch.h
 
-crt/rcrt1.o src/ldso/dlstart.lo src/ldso/dynlink.lo: src/internal/dynlink.h arch/$(ARCH)/reloc.h
+obj/crt/rcrt1.o: $(srcdir)/ldso/dlstart.c
 
-crt/crt1.o crt/Scrt1.o crt/rcrt1.o src/ldso/dlstart.lo: $(wildcard arch/$(ARCH)/crt_arch.h)
+obj/crt/Scrt1.o obj/crt/rcrt1.o: CFLAGS_ALL += -fPIC
 
-crt/rcrt1.o: src/ldso/dlstart.c
+obj/crt/$(ARCH)/crti.o: $(srcdir)/crt/$(ARCH)/crti.s
 
-crt/Scrt1.o crt/rcrt1.o: CFLAGS += -fPIC
+obj/crt/$(ARCH)/crtn.o: $(srcdir)/crt/$(ARCH)/crtn.s
 
-OPTIMIZE_SRCS = $(wildcard $(OPTIMIZE_GLOBS:%=src/%))
-$(OPTIMIZE_SRCS:%.c=%.o) $(OPTIMIZE_SRCS:%.c=%.lo): CFLAGS += -O3
+OPTIMIZE_SRCS = $(wildcard $(OPTIMIZE_GLOBS:%=$(srcdir)/src/%))
+$(OPTIMIZE_SRCS:$(srcdir)/%.c=obj/%.o) $(OPTIMIZE_SRCS:$(srcdir)/%.c=obj/%.lo): CFLAGS += -O3
 
 MEMOPS_SRCS = src/string/memcpy.c src/string/memmove.c src/string/memcmp.c src/string/memset.c
-$(MEMOPS_SRCS:%.c=%.o) $(MEMOPS_SRCS:%.c=%.lo): CFLAGS += $(CFLAGS_MEMOPS)
+$(MEMOPS_SRCS:%.c=obj/%.o) $(MEMOPS_SRCS:%.c=obj/%.lo): CFLAGS_ALL += $(CFLAGS_MEMOPS)
 
 NOSSP_SRCS = $(wildcard crt/*.c) \
 	src/env/__libc_start_main.c src/env/__init_tls.c \
-	src/thread/__set_thread_area.c src/env/__stack_chk_fail.c \
-	src/string/memset.c src/string/memcpy.c \
-	src/ldso/dlstart.c src/ldso/dynlink.c
-$(NOSSP_SRCS:%.c=%.o) $(NOSSP_SRCS:%.c=%.lo): CFLAGS += $(CFLAGS_NOSSP)
+	src/env/__stack_chk_fail.c \
+	src/thread/__set_thread_area.c src/thread/$(ARCH)/__set_thread_area.c \
+	src/string/memset.c src/string/$(ARCH)/memset.c \
+	src/string/memcpy.c src/string/$(ARCH)/memcpy.c \
+	ldso/dlstart.c ldso/dynlink.c
+$(NOSSP_SRCS:%.c=obj/%.o) $(NOSSP_SRCS:%.c=obj/%.lo): CFLAGS_ALL += $(CFLAGS_NOSSP)
 
-$(CRT_LIBS:lib/%=crt/%): CFLAGS += -DCRT
+$(CRT_LIBS:lib/%=obj/crt/%): CFLAGS_ALL += -DCRT
 
-# This incantation ensures that changes to any subarch asm files will
-# force the corresponding object file to be rebuilt, even if the implicit
-# rule below goes indirectly through a .sub file.
-define mkasmdep
-$(dir $(patsubst %/,%,$(dir $(1))))$(notdir $(1:.s=.o)): $(1)
-endef
-$(foreach s,$(wildcard src/*/$(ARCH)*/*.s),$(eval $(call mkasmdep,$(s))))
+$(LOBJS) $(LDSO_OBJS): CFLAGS_ALL += -fPIC
+
+CC_CMD = $(CC) $(CFLAGS_ALL) -c -o $@ $<
 
 # Choose invocation of assembler to be used
-# $(1) is input file, $(2) is output file, $(3) is assembler flags
 ifeq ($(ADD_CFI),yes)
-	AS_CMD = LC_ALL=C awk -f tools/add-cfi.common.awk -f tools/add-cfi.$(ARCH).awk $< | $(CC) -x assembler -c -o $@ -
+	AS_CMD = LC_ALL=C awk -f $(srcdir)/tools/add-cfi.common.awk -f $(srcdir)/tools/add-cfi.$(ARCH).awk $< | $(CC) $(CFLAGS_ALL) -x assembler -c -o $@ -
 else
-	AS_CMD = $(CC) -c -o $@ $<
+	AS_CMD = $(CC_CMD)
 endif
 
-%.o: $(ARCH)$(ASMSUBARCH)/%.sub
-	$(CC) $(CFLAGS_ALL_STATIC) -c -o $@ $(dir $<)$(shell cat $<)
+obj/%.o: $(srcdir)/%.s
+	$(AS_CMD)
 
-%.o: $(ARCH)/%.s
-	$(AS_CMD) $(CFLAGS_ALL_STATIC)
+obj/%.o: $(srcdir)/%.S
+	$(CC_CMD)
 
-%.o: %.c $(GENH) $(IMPH)
-	$(CC) $(CFLAGS_ALL_STATIC) -c -o $@ $<
+obj/%.o: $(srcdir)/%.c $(GENH) $(IMPH)
+	$(CC_CMD)
 
-%.lo: $(ARCH)$(ASMSUBARCH)/%.sub
-	$(CC) $(CFLAGS_ALL_SHARED) -c -o $@ $(dir $<)$(shell cat $<)
+obj/%.lo: $(srcdir)/%.s
+	$(AS_CMD)
 
-%.lo: $(ARCH)/%.s
-	$(AS_CMD) $(CFLAGS_ALL_SHARED)
+obj/%.lo: $(srcdir)/%.S
+	$(CC_CMD)
 
-%.lo: %.c $(GENH) $(IMPH)
-	$(CC) $(CFLAGS_ALL_SHARED) -c -o $@ $<
+obj/%.lo: $(srcdir)/%.c $(GENH) $(IMPH)
+	$(CC_CMD)
 
-lib/libc.so: $(LOBJS)
-	$(CC) $(CFLAGS_ALL_SHARED) $(LDFLAGS) -nostdlib -shared \
+lib/libc.so: $(LOBJS) $(LDSO_OBJS)
+	$(CC) $(CFLAGS_ALL) $(LDFLAGS_ALL) -nostdlib -shared \
 	-Wl,-e,_dlstart -Wl,-Bsymbolic-functions \
-	-o $@ $(LOBJS) $(LIBCC)
+	-o $@ $(LOBJS) $(LDSO_OBJS) $(LIBCC)
 
-lib/libc.a: $(OBJS)
+lib/libc.a: $(AOBJS)
 	rm -f $@
-	$(AR) rc $@ $(OBJS)
+	$(AR) rc $@ $(AOBJS)
 	$(RANLIB) $@
 
 $(EMPTY_LIBS):
 	rm -f $@
 	$(AR) rc $@
 
-lib/%.o: crt/%.o
+lib/%.o: obj/crt/%.o
 	cp $< $@
 
-lib/musl-gcc.specs: tools/musl-gcc.specs.sh config.mak
+lib/crti.o: obj/crt/$(ARCH)/crti.o
+	cp $< $@
+
+lib/crtn.o: obj/crt/$(ARCH)/crtn.o
+	cp $< $@
+
+lib/musl-gcc.specs: $(srcdir)/tools/musl-gcc.specs.sh config.mak
 	sh $< "$(includedir)" "$(libdir)" "$(LDSO_PATHNAME)" > $@
 
-tools/musl-gcc: config.mak
+obj/musl-gcc: config.mak
 	printf '#!/bin/sh\nexec "$${REALGCC:-$(WRAPCC_GCC)}" "$$@" -specs "%s/musl-gcc.specs"\n' "$(libdir)" > $@
 	chmod +x $@
 
-tools/%-clang: tools/%-clang.in config.mak
+obj/%-clang: $(srcdir)/tools/%-clang.in config.mak
 	sed -e 's!@CC@!$(WRAPCC_CLANG)!g' -e 's!@PREFIX@!$(prefix)!g' -e 's!@INCDIR@!$(includedir)!g' -e 's!@LIBDIR@!$(libdir)!g' -e 's!@LDSO@!$(LDSO_PATHNAME)!g' $< > $@
 	chmod +x $@
 
-$(DESTDIR)$(bindir)/%: tools/%
+$(DESTDIR)$(bindir)/%: obj/%
 	$(INSTALL) -D $< $@
 
 $(DESTDIR)$(libdir)/%.so: lib/%.so
@@ -182,10 +200,16 @@ $(DESTDIR)$(libdir)/%.so: lib/%.so
 $(DESTDIR)$(libdir)/%: lib/%
 	$(INSTALL) -D -m 644 $< $@
 
-$(DESTDIR)$(includedir)/bits/%: arch/$(ARCH)/bits/%
+$(DESTDIR)$(includedir)/bits/%: $(srcdir)/arch/$(ARCH)/bits/%
 	$(INSTALL) -D -m 644 $< $@
 
-$(DESTDIR)$(includedir)/%: include/%
+$(DESTDIR)$(includedir)/bits/%: $(srcdir)/arch/generic/bits/%
+	$(INSTALL) -D -m 644 $< $@
+
+$(DESTDIR)$(includedir)/bits/%: obj/include/bits/%
+	$(INSTALL) -D -m 644 $< $@
+
+$(DESTDIR)$(includedir)/%: $(srcdir)/include/%
 	$(INSTALL) -D -m 644 $< $@
 
 $(DESTDIR)$(LDSO_PATHNAME): $(DESTDIR)$(libdir)/libc.so
@@ -195,12 +219,12 @@ install-libs: $(ALL_LIBS:lib/%=$(DESTDIR
 
 install-headers: $(ALL_INCLUDES:include/%=$(DESTDIR)$(includedir)/%)
 
-install-tools: $(ALL_TOOLS:tools/%=$(DESTDIR)$(bindir)/%)
+install-tools: $(ALL_TOOLS:obj/%=$(DESTDIR)$(bindir)/%)
 
 musl-git-%.tar.gz: .git
-	 git archive --format=tar.gz --prefix=$(patsubst %.tar.gz,%,$@)/ -o $@ $(patsubst musl-git-%.tar.gz,%,$@)
+	 git --git-dir=$(srcdir)/.git archive --format=tar.gz --prefix=$(patsubst %.tar.gz,%,$@)/ -o $@ $(patsubst musl-git-%.tar.gz,%,$@)
 
 musl-%.tar.gz: .git
-	 git archive --format=tar.gz --prefix=$(patsubst %.tar.gz,%,$@)/ -o $@ v$(patsubst musl-%.tar.gz,%,$@)
+	 git --git-dir=$(srcdir)/.git archive --format=tar.gz --prefix=$(patsubst %.tar.gz,%,$@)/ -o $@ v$(patsubst musl-%.tar.gz,%,$@)
 
 .PHONY: all clean install install-libs install-headers install-tools
--- a/arch/aarch64/atomic.h
+++ /dev/null
@@ -1,206 +0,0 @@
-#ifndef _INTERNAL_ATOMIC_H
-#define _INTERNAL_ATOMIC_H
-
-#include <stdint.h>
-
-static inline int a_ctz_64(uint64_t x)
-{
-	__asm__(
-		"	rbit %0, %1\n"
-		"	clz %0, %0\n"
-		: "=r"(x) : "r"(x));
-	return x;
-}
-
-static inline int a_ctz_l(unsigned long x)
-{
-	return a_ctz_64(x);
-}
-
-static inline void a_barrier()
-{
-	__asm__ __volatile__("dmb ish");
-}
-
-static inline void *a_cas_p(volatile void *p, void *t, void *s)
-{
-	void *old;
-	__asm__ __volatile__(
-		"	dmb ish\n"
-		"1:	ldxr %0,%3\n"
-		"	cmp %0,%1\n"
-		"	b.ne 1f\n"
-		"	stxr %w0,%2,%3\n"
-		"	cbnz %w0,1b\n"
-		"	mov %0,%1\n"
-		"1:	dmb ish\n"
-		: "=&r"(old)
-		: "r"(t), "r"(s), "Q"(*(long*)p)
-		: "memory", "cc");
-	return old;
-}
-
-static inline int a_cas(volatile int *p, int t, int s)
-{
-	int old;
-	__asm__ __volatile__(
-		"	dmb ish\n"
-		"1:	ldxr %w0,%3\n"
-		"	cmp %w0,%w1\n"
-		"	b.ne 1f\n"
-		"	stxr %w0,%w2,%3\n"
-		"	cbnz %w0,1b\n"
-		"	mov %w0,%w1\n"
-		"1:	dmb ish\n"
-		: "=&r"(old)
-		: "r"(t), "r"(s), "Q"(*p)
-		: "memory", "cc");
-	return old;
-}
-
-static inline int a_swap(volatile int *x, int v)
-{
-	int old, tmp;
-	__asm__ __volatile__(
-		"	dmb ish\n"
-		"1:	ldxr %w0,%3\n"
-		"	stxr %w1,%w2,%3\n"
-		"	cbnz %w1,1b\n"
-		"	dmb ish\n"
-		: "=&r"(old), "=&r"(tmp)
-		: "r"(v), "Q"(*x)
-		: "memory", "cc" );
-	return old;
-}
-
-static inline int a_fetch_add(volatile int *x, int v)
-{
-	int old, tmp;
-	__asm__ __volatile__(
-		"	dmb ish\n"
-		"1:	ldxr %w0,%3\n"
-		"	add %w0,%w0,%w2\n"
-		"	stxr %w1,%w0,%3\n"
-		"	cbnz %w1,1b\n"
-		"	dmb ish\n"
-		: "=&r"(old), "=&r"(tmp)
-		: "r"(v), "Q"(*x)
-		: "memory", "cc" );
-	return old-v;
-}
-
-static inline void a_inc(volatile int *x)
-{
-	int tmp, tmp2;
-	__asm__ __volatile__(
-		"	dmb ish\n"
-		"1:	ldxr %w0,%2\n"
-		"	add %w0,%w0,#1\n"
-		"	stxr %w1,%w0,%2\n"
-		"	cbnz %w1,1b\n"
-		"	dmb ish\n"
-		: "=&r"(tmp), "=&r"(tmp2)
-		: "Q"(*x)
-		: "memory", "cc" );
-}
-
-static inline void a_dec(volatile int *x)
-{
-	int tmp, tmp2;
-	__asm__ __volatile__(
-		"	dmb ish\n"
-		"1:	ldxr %w0,%2\n"
-		"	sub %w0,%w0,#1\n"
-		"	stxr %w1,%w0,%2\n"
-		"	cbnz %w1,1b\n"
-		"	dmb ish\n"
-		: "=&r"(tmp), "=&r"(tmp2)
-		: "Q"(*x)
-		: "memory", "cc" );
-}
-
-static inline void a_and_64(volatile uint64_t *p, uint64_t v)
-{
-	int tmp, tmp2;
-	__asm__ __volatile__(
-		"	dmb ish\n"
-		"1:	ldxr %0,%3\n"
-		"	and %0,%0,%2\n"
-		"	stxr %w1,%0,%3\n"
-		"	cbnz %w1,1b\n"
-		"	dmb ish\n"
-		: "=&r"(tmp), "=&r"(tmp2)
-		: "r"(v), "Q"(*p)
-		: "memory", "cc" );
-}
-
-static inline void a_and(volatile int *p, int v)
-{
-	int tmp, tmp2;
-	__asm__ __volatile__(
-		"	dmb ish\n"
-		"1:	ldxr %w0,%3\n"
-		"	and %w0,%w0,%w2\n"
-		"	stxr %w1,%w0,%3\n"
-		"	cbnz %w1,1b\n"
-		"	dmb ish\n"
-		: "=&r"(tmp), "=&r"(tmp2)
-		: "r"(v), "Q"(*p)
-		: "memory", "cc" );
-}
-
-static inline void a_or_64(volatile uint64_t *p, uint64_t v)
-{
-	int tmp, tmp2;
-	__asm__ __volatile__(
-		"	dmb ish\n"
-		"1:	ldxr %0,%3\n"
-		"	orr %0,%0,%2\n"
-		"	stxr %w1,%0,%3\n"
-		"	cbnz %w1,1b\n"
-		"	dmb ish\n"
-		: "=&r"(tmp), "=&r"(tmp2)
-		: "r"(v), "Q"(*p)
-		: "memory", "cc" );
-}
-
-static inline void a_or_l(volatile void *p, long v)
-{
-	return a_or_64(p, v);
-}
-
-static inline void a_or(volatile int *p, int v)
-{
-	int tmp, tmp2;
-	__asm__ __volatile__(
-		"	dmb ish\n"
-		"1:	ldxr %w0,%3\n"
-		"	orr %w0,%w0,%w2\n"
-		"	stxr %w1,%w0,%3\n"
-		"	cbnz %w1,1b\n"
-		"	dmb ish\n"
-		: "=&r"(tmp), "=&r"(tmp2)
-		: "r"(v), "Q"(*p)
-		: "memory", "cc" );
-}
-
-static inline void a_store(volatile int *p, int x)
-{
-	__asm__ __volatile__(
-		"	dmb ish\n"
-		"	str %w1,%0\n"
-		"	dmb ish\n"
-		: "=m"(*p)
-		: "r"(x)
-		: "memory", "cc" );
-}
-
-#define a_spin a_barrier
-
-static inline void a_crash()
-{
-	*(volatile char *)0=0;
-}
-
-
-#endif
--- /dev/null
+++ b/arch/aarch64/atomic_arch.h
@@ -0,0 +1,73 @@
+#define a_ll a_ll
+static inline int a_ll(volatile int *p)
+{
+	int v;
+	__asm__ __volatile__ ("ldaxr %w0,%1" : "=r"(v) : "Q"(*p));
+	return v;
+}
+
+#define a_sc a_sc
+static inline int a_sc(volatile int *p, int v)
+{
+	int r;
+	__asm__ __volatile__ ("stlxr %w0,%w1,%2" : "=&r"(r) : "r"(v), "Q"(*p) : "memory");
+	return !r;
+}
+
+#define a_barrier a_barrier
+static inline void a_barrier()
+{
+	__asm__ __volatile__ ("dmb ish" : : : "memory");
+}
+
+#define a_cas a_cas
+static inline int a_cas(volatile int *p, int t, int s)
+{
+	int old;
+	do {
+		old = a_ll(p);
+		if (old != t) {
+			a_barrier();
+			break;
+		}
+	} while (!a_sc(p, s));
+	return old;
+}
+
+static inline void *a_ll_p(volatile void *p)
+{
+	void *v;
+	__asm__ __volatile__ ("ldaxr %0, %1" : "=r"(v) : "Q"(*(void *volatile *)p));
+	return v;
+}
+
+static inline int a_sc_p(volatile int *p, void *v)
+{
+	int r;
+	__asm__ __volatile__ ("stlxr %w0,%1,%2" : "=&r"(r) : "r"(v), "Q"(*(void *volatile *)p) : "memory");
+	return !r;
+}
+
+#define a_cas_p a_cas_p
+static inline void *a_cas_p(volatile void *p, void *t, void *s)
+{
+	void *old;
+	do {
+		old = a_ll_p(p);
+		if (old != t) {
+			a_barrier();
+			break;
+		}
+	} while (!a_sc_p(p, s));
+	return old;
+}
+
+#define a_ctz_64 a_ctz_64
+static inline int a_ctz_64(uint64_t x)
+{
+	__asm__(
+		"	rbit %0, %1\n"
+		"	clz %0, %0\n"
+		: "=r"(x) : "r"(x));
+	return x;
+}
--- a/arch/aarch64/bits/errno.h
+++ /dev/null
@@ -1,134 +0,0 @@
-#define EPERM            1
-#define ENOENT           2
-#define ESRCH            3
-#define EINTR            4
-#define EIO              5
-#define ENXIO            6
-#define E2BIG            7
-#define ENOEXEC          8
-#define EBADF            9
-#define ECHILD          10
-#define EAGAIN          11
-#define ENOMEM          12
-#define EACCES          13
-#define EFAULT          14
-#define ENOTBLK         15
-#define EBUSY           16
-#define EEXIST          17
-#define EXDEV           18
-#define ENODEV          19
-#define ENOTDIR         20
-#define EISDIR          21
-#define EINVAL          22
-#define ENFILE          23
-#define EMFILE          24
-#define ENOTTY          25
-#define ETXTBSY         26
-#define EFBIG           27
-#define ENOSPC          28
-#define ESPIPE          29
-#define EROFS           30
-#define EMLINK          31
-#define EPIPE           32
-#define EDOM            33
-#define ERANGE          34
-#define EDEADLK         35
-#define ENAMETOOLONG    36
-#define ENOLCK          37
-#define ENOSYS          38
-#define ENOTEMPTY       39
-#define ELOOP           40
-#define EWOULDBLOCK     EAGAIN
-#define ENOMSG          42
-#define EIDRM           43
-#define ECHRNG          44
-#define EL2NSYNC        45
-#define EL3HLT          46
-#define EL3RST          47
-#define ELNRNG          48
-#define EUNATCH         49
-#define ENOCSI          50
-#define EL2HLT          51
-#define EBADE           52
-#define EBADR           53
-#define EXFULL          54
-#define ENOANO          55
-#define EBADRQC         56
-#define EBADSLT         57
-#define EDEADLOCK       EDEADLK
-#define EBFONT          59
-#define ENOSTR          60
-#define ENODATA         61
-#define ETIME           62
-#define ENOSR           63
-#define ENONET          64
-#define ENOPKG          65
-#define EREMOTE         66
-#define ENOLINK         67
-#define EADV            68
-#define ESRMNT          69
-#define ECOMM           70
-#define EPROTO          71
-#define EMULTIHOP       72
-#define EDOTDOT         73
-#define EBADMSG         74
-#define EOVERFLOW       75
-#define ENOTUNIQ        76
-#define EBADFD          77
-#define EREMCHG         78
-#define ELIBACC         79
-#define ELIBBAD         80
-#define ELIBSCN         81
-#define ELIBMAX         82
-#define ELIBEXEC        83
-#define EILSEQ          84
-#define ERESTART        85
-#define ESTRPIPE        86
-#define EUSERS          87
-#define ENOTSOCK        88
-#define EDESTADDRREQ    89
-#define EMSGSIZE        90
-#define EPROTOTYPE      91
-#define ENOPROTOOPT     92
-#define EPROTONOSUPPORT 93
-#define ESOCKTNOSUPPORT 94
-#define EOPNOTSUPP      95
-#define ENOTSUP         EOPNOTSUPP
-#define EPFNOSUPPORT    96
-#define EAFNOSUPPORT    97
-#define EADDRINUSE      98
-#define EADDRNOTAVAIL   99
-#define ENETDOWN        100
-#define ENETUNREACH     101
-#define ENETRESET       102
-#define ECONNABORTED    103
-#define ECONNRESET      104
-#define ENOBUFS         105
-#define EISCONN         106
-#define ENOTCONN        107
-#define ESHUTDOWN       108
-#define ETOOMANYREFS    109
-#define ETIMEDOUT       110
-#define ECONNREFUSED    111
-#define EHOSTDOWN       112
-#define EHOSTUNREACH    113
-#define EALREADY        114
-#define EINPROGRESS     115
-#define ESTALE          116
-#define EUCLEAN         117
-#define ENOTNAM         118
-#define ENAVAIL         119
-#define EISNAM          120
-#define EREMOTEIO       121
-#define EDQUOT          122
-#define ENOMEDIUM       123
-#define EMEDIUMTYPE     124
-#define ECANCELED       125
-#define ENOKEY          126
-#define EKEYEXPIRED     127
-#define EKEYREVOKED     128
-#define EKEYREJECTED    129
-#define EOWNERDEAD      130
-#define ENOTRECOVERABLE 131
-#define ERFKILL         132
-#define EHWPOISON       133
--- a/arch/aarch64/bits/mman.h
+++ b/arch/aarch64/bits/mman.h
@@ -36,6 +36,7 @@
 
 #define MCL_CURRENT     1
 #define MCL_FUTURE      2
+#define MCL_ONFAULT     4
 
 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
 #define MADV_NORMAL      0
--- a/arch/aarch64/bits/statfs.h
+++ /dev/null
@@ -1,7 +0,0 @@
-struct statfs {
-	unsigned long f_type, f_bsize;
-	fsblkcnt_t f_blocks, f_bfree, f_bavail;
-	fsfilcnt_t f_files, f_ffree;
-	fsid_t f_fsid;
-	unsigned long f_namelen, f_frsize, f_flags, f_spare[4];
-};
--- a/arch/aarch64/bits/stdarg.h
+++ /dev/null
@@ -1,4 +0,0 @@
-#define va_start(v,l)   __builtin_va_start(v,l)
-#define va_end(v)       __builtin_va_end(v)
-#define va_arg(v,l)     __builtin_va_arg(v,l)
-#define va_copy(d,s)    __builtin_va_copy(d,s)
--- a/arch/aarch64/bits/syscall.h
+++ b/arch/aarch64/bits/syscall.h
@@ -265,6 +265,9 @@
 #define __NR_memfd_create 279
 #define __NR_bpf 280
 #define __NR_execveat 281
+#define __NR_userfaultfd 282
+#define __NR_membarrier 283
+#define __NR_mlock2 284
 
 #define SYS_io_setup __NR_io_setup
 #define SYS_io_destroy __NR_io_destroy
@@ -533,3 +536,6 @@
 #define SYS_memfd_create __NR_memfd_create
 #define SYS_bpf __NR_bpf
 #define SYS_execveat __NR_execveat
+#define SYS_userfaultfd __NR_userfaultfd
+#define SYS_membarrier __NR_membarrier
+#define SYS_mlock2 __NR_mlock2
--- a/arch/aarch64/bits/termios.h
+++ /dev/null
@@ -1,160 +0,0 @@
-struct termios
-{
-	tcflag_t c_iflag;
-	tcflag_t c_oflag;
-	tcflag_t c_cflag;
-	tcflag_t c_lflag;
-	cc_t c_line;
-	cc_t c_cc[NCCS];
-	speed_t __c_ispeed;
-	speed_t __c_ospeed;
-};
-
-#define VINTR     0
-#define VQUIT     1
-#define VERASE    2
-#define VKILL     3
-#define VEOF      4
-#define VTIME     5
-#define VMIN      6
-#define VSWTC     7
-#define VSTART    8
-#define VSTOP     9
-#define VSUSP    10
-#define VEOL     11
-#define VREPRINT 12
-#define VDISCARD 13
-#define VWERASE  14
-#define VLNEXT   15
-#define VEOL2    16
-
-#define IGNBRK  0000001
-#define BRKINT  0000002
-#define IGNPAR  0000004
-#define PARMRK  0000010
-#define INPCK   0000020
-#define ISTRIP  0000040
-#define INLCR   0000100
-#define IGNCR   0000200
-#define ICRNL   0000400
-#define IUCLC   0001000
-#define IXON    0002000
-#define IXANY   0004000
-#define IXOFF   0010000
-#define IMAXBEL 0020000
-#define IUTF8   0040000
-
-#define OPOST  0000001
-#define OLCUC  0000002
-#define ONLCR  0000004
-#define OCRNL  0000010
-#define ONOCR  0000020
-#define ONLRET 0000040
-#define OFILL  0000100
-#define OFDEL  0000200
-#define NLDLY  0000400
-#define NL0    0000000
-#define NL1    0000400
-#define CRDLY  0003000
-#define CR0    0000000
-#define CR1    0001000
-#define CR2    0002000
-#define CR3    0003000
-#define TABDLY 0014000
-#define TAB0   0000000
-#define TAB1   0004000
-#define TAB2   0010000
-#define TAB3   0014000
-#define BSDLY  0020000
-#define BS0    0000000
-#define BS1    0020000
-#define FFDLY  0100000
-#define FF0    0000000
-#define FF1    0100000
-
-#define VTDLY  0040000
-#define VT0    0000000
-#define VT1    0040000
-
-#define B0       0000000
-#define B50      0000001
-#define B75      0000002
-#define B110     0000003
-#define B134     0000004
-#define B150     0000005
-#define B200     0000006
-#define B300     0000007
-#define B600     0000010
-#define B1200    0000011
-#define B1800    0000012
-#define B2400    0000013
-#define B4800    0000014
-#define B9600    0000015
-#define B19200   0000016
-#define B38400   0000017
-
-#define B57600   0010001
-#define B115200  0010002
-#define B230400  0010003
-#define B460800  0010004
-#define B500000  0010005
-#define B576000  0010006
-#define B921600  0010007
-#define B1000000 0010010
-#define B1152000 0010011
-#define B1500000 0010012
-#define B2000000 0010013
-#define B2500000 0010014
-#define B3000000 0010015
-#define B3500000 0010016
-#define B4000000 0010017
-
-#define CBAUD    0010017
-
-#define CSIZE  0000060
-#define CS5    0000000
-#define CS6    0000020
-#define CS7    0000040
-#define CS8    0000060
-#define CSTOPB 0000100
-#define CREAD  0000200
-#define PARENB 0000400
-#define PARODD 0001000
-#define HUPCL  0002000
-#define CLOCAL 0004000
-
-#define ISIG   0000001
-#define ICANON 0000002
-#define ECHO   0000010
-#define ECHOE  0000020
-#define ECHOK  0000040
-#define ECHONL 0000100
-#define NOFLSH 0000200
-#define TOSTOP 0000400
-#define IEXTEN 0100000
-
-#define ECHOCTL 0001000
-#define ECHOPRT 0002000
-#define ECHOKE 0004000
-#define FLUSHO 0010000
-#define PENDIN 0040000
-
-#define TCOOFF 0
-#define TCOON  1
-#define TCIOFF 2
-#define TCION  3
-
-#define TCIFLUSH  0
-#define TCOFLUSH  1
-#define TCIOFLUSH 2
-
-#define TCSANOW   0
-#define TCSADRAIN 1
-#define TCSAFLUSH 2
-
-#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
-#define CBAUDEX 0010000
-#define CRTSCTS  020000000000
-#define EXTPROC 0200000
-#define XTABS  0014000
-#endif
--- a/arch/aarch64/pthread_arch.h
+++ b/arch/aarch64/pthread_arch.h
@@ -8,4 +8,4 @@ static inline struct pthread *__pthread_
 #define TLS_ABOVE_TP
 #define TP_ADJ(p) ((char *)(p) + sizeof(struct pthread) - 16)
 
-#define CANCEL_REG_IP 33
+#define MC_PC pc
--- a/arch/arm/atomic.h
+++ /dev/null
@@ -1,261 +0,0 @@
-#ifndef _INTERNAL_ATOMIC_H
-#define _INTERNAL_ATOMIC_H
-
-#include <stdint.h>
-
-static inline int a_ctz_l(unsigned long x)
-{
-	static const char debruijn32[32] = {
-		0, 1, 23, 2, 29, 24, 19, 3, 30, 27, 25, 11, 20, 8, 4, 13,
-		31, 22, 28, 18, 26, 10, 7, 12, 21, 17, 9, 6, 16, 5, 15, 14
-	};
-	return debruijn32[(x&-x)*0x076be629 >> 27];
-}
-
-static inline int a_ctz_64(uint64_t x)
-{
-	uint32_t y = x;
-	if (!y) {
-		y = x>>32;
-		return 32 + a_ctz_l(y);
-	}
-	return a_ctz_l(y);
-}
-
-#if __ARM_ARCH_7A__ || __ARM_ARCH_7R__ ||  __ARM_ARCH >= 7
-
-static inline void a_barrier()
-{
-	__asm__ __volatile__("dmb ish");
-}
-
-static inline int a_cas(volatile int *p, int t, int s)
-{
-	int old;
-	__asm__ __volatile__(
-		"	dmb ish\n"
-		"1:	ldrex %0,%3\n"
-		"	cmp %0,%1\n"
-		"	bne 1f\n"
-		"	strex %0,%2,%3\n"
-		"	cmp %0, #0\n"
-		"	bne 1b\n"
-		"	mov %0, %1\n"
-		"1:	dmb ish\n"
-		: "=&r"(old)
-		: "r"(t), "r"(s), "Q"(*p)
-		: "memory", "cc" );
-	return old;
-}
-
-static inline int a_swap(volatile int *x, int v)
-{
-	int old, tmp;
-	__asm__ __volatile__(
-		"	dmb ish\n"
-		"1:	ldrex %0,%3\n"
-		"	strex %1,%2,%3\n"
-		"	cmp %1, #0\n"
-		"	bne 1b\n"
-		"	dmb ish\n"
-		: "=&r"(old), "=&r"(tmp)
-		: "r"(v), "Q"(*x)
-		: "memory", "cc" );
-	return old;
-}
-
-static inline int a_fetch_add(volatile int *x, int v)
-{
-	int old, tmp;
-	__asm__ __volatile__(
-		"	dmb ish\n"
-		"1:	ldrex %0,%3\n"
-		"	add %0,%0,%2\n"
-		"	strex %1,%0,%3\n"
-		"	cmp %1, #0\n"
-		"	bne 1b\n"
-		"	dmb ish\n"
-		: "=&r"(old), "=&r"(tmp)
-		: "r"(v), "Q"(*x)
-		: "memory", "cc" );
-	return old-v;
-}
-
-static inline void a_inc(volatile int *x)
-{
-	int tmp, tmp2;
-	__asm__ __volatile__(
-		"	dmb ish\n"
-		"1:	ldrex %0,%2\n"
-		"	add %0,%0,#1\n"
-		"	strex %1,%0,%2\n"
-		"	cmp %1, #0\n"
-		"	bne 1b\n"
-		"	dmb ish\n"
-		: "=&r"(tmp), "=&r"(tmp2)
-		: "Q"(*x)
-		: "memory", "cc" );
-}
-
-static inline void a_dec(volatile int *x)
-{
-	int tmp, tmp2;
-	__asm__ __volatile__(
-		"	dmb ish\n"
-		"1:	ldrex %0,%2\n"
-		"	sub %0,%0,#1\n"
-		"	strex %1,%0,%2\n"
-		"	cmp %1, #0\n"
-		"	bne 1b\n"
-		"	dmb ish\n"
-		: "=&r"(tmp), "=&r"(tmp2)
-		: "Q"(*x)
-		: "memory", "cc" );
-}
-
-static inline void a_and(volatile int *x, int v)
-{
-	int tmp, tmp2;
-	__asm__ __volatile__(
-		"	dmb ish\n"
-		"1:	ldrex %0,%3\n"
-		"	and %0,%0,%2\n"
-		"	strex %1,%0,%3\n"
-		"	cmp %1, #0\n"
-		"	bne 1b\n"
-		"	dmb ish\n"
-		: "=&r"(tmp), "=&r"(tmp2)
-		: "r"(v), "Q"(*x)
-		: "memory", "cc" );
-}
-
-static inline void a_or(volatile int *x, int v)
-{
-	int tmp, tmp2;
-	__asm__ __volatile__(
-		"	dmb ish\n"
-		"1:	ldrex %0,%3\n"
-		"	orr %0,%0,%2\n"
-		"	strex %1,%0,%3\n"
-		"	cmp %1, #0\n"
-		"	bne 1b\n"
-		"	dmb ish\n"
-		: "=&r"(tmp), "=&r"(tmp2)
-		: "r"(v), "Q"(*x)
-		: "memory", "cc" );
-}
-
-static inline void a_store(volatile int *p, int x)
-{
-	__asm__ __volatile__(
-		"	dmb ish\n"
-		"	str %1,%0\n"
-		"	dmb ish\n"
-		: "=m"(*p)
-		: "r"(x)
-		: "memory", "cc" );
-}
-
-#else
-
-int __a_cas(int, int, volatile int *) __attribute__((__visibility__("hidden")));
-#define __k_cas __a_cas
-
-static inline void a_barrier()
-{
-	__asm__ __volatile__("bl __a_barrier"
-		: : : "memory", "cc", "ip", "lr" );
-}
-
-static inline int a_cas(volatile int *p, int t, int s)
-{
-	int old;
-	for (;;) {
-		if (!__k_cas(t, s, p))
-			return t;
-		if ((old=*p) != t)
-			return old;
-	}
-}
-
-static inline int a_swap(volatile int *x, int v)
-{
-	int old;
-	do old = *x;
-	while (__k_cas(old, v, x));
-	return old;
-}
-
-static inline int a_fetch_add(volatile int *x, int v)
-{
-	int old;
-	do old = *x;
-	while (__k_cas(old, old+v, x));
-	return old;
-}
-
-static inline void a_inc(volatile int *x)
-{
-	a_fetch_add(x, 1);
-}
-
-static inline void a_dec(volatile int *x)
-{
-	a_fetch_add(x, -1);
-}
-
-static inline void a_store(volatile int *p, int x)
-{
-	a_barrier();
-	*p = x;
-	a_barrier();
-}
-
-static inline void a_and(volatile int *p, int v)
-{
-	int old;
-	do old = *p;
-	while (__k_cas(old, old&v, p));
-}
-
-static inline void a_or(volatile int *p, int v)
-{
-	int old;
-	do old = *p;
-	while (__k_cas(old, old|v, p));
-}
-
-#endif
-
-static inline void *a_cas_p(volatile void *p, void *t, void *s)
-{
-	return (void *)a_cas(p, (int)t, (int)s);
-}
-
-#define a_spin a_barrier
-
-static inline void a_crash()
-{
-	*(volatile char *)0=0;
-}
-
-static inline void a_or_l(volatile void *p, long v)
-{
-	a_or(p, v);
-}
-
-static inline void a_and_64(volatile uint64_t *p, uint64_t v)
-{
-	union { uint64_t v; uint32_t r[2]; } u = { v };
-	a_and((int *)p, u.r[0]);
-	a_and((int *)p+1, u.r[1]);
-}
-
-static inline void a_or_64(volatile uint64_t *p, uint64_t v)
-{
-	union { uint64_t v; uint32_t r[2]; } u = { v };
-	a_or((int *)p, u.r[0]);
-	a_or((int *)p+1, u.r[1]);
-}
-
-#endif
--- /dev/null
+++ b/arch/arm/atomic_arch.h
@@ -0,0 +1,76 @@
+__attribute__((__visibility__("hidden")))
+extern const void *__arm_atomics[3]; /* gettp, cas, barrier */
+
+#if ((__ARM_ARCH_6__ || __ARM_ARCH_6K__ || __ARM_ARCH_6ZK__) && !__thumb__) \
+ || __ARM_ARCH_7A__ || __ARM_ARCH_7R__ ||  __ARM_ARCH >= 7
+
+#define a_ll a_ll
+static inline int a_ll(volatile int *p)
+{
+	int v;
+	__asm__ __volatile__ ("ldrex %0, %1" : "=r"(v) : "Q"(*p));
+	return v;
+}
+
+#define a_sc a_sc
+static inline int a_sc(volatile int *p, int v)
+{
+	int r;
+	__asm__ __volatile__ ("strex %0,%1,%2" : "=&r"(r) : "r"(v), "Q"(*p) : "memory");
+	return !r;
+}
+
+#if __ARM_ARCH_7A__ || __ARM_ARCH_7R__ ||  __ARM_ARCH >= 7
+
+#define a_barrier a_barrier
+static inline void a_barrier()
+{
+	__asm__ __volatile__ ("dmb ish" : : : "memory");
+}
+
+#endif
+
+#define a_pre_llsc a_barrier
+#define a_post_llsc a_barrier
+
+#else
+
+#define a_cas a_cas
+static inline int a_cas(volatile int *p, int t, int s)
+{
+	for (;;) {
+		register int r0 __asm__("r0") = t;
+		register int r1 __asm__("r1") = s;
+		register volatile int *r2 __asm__("r2") = p;
+		int old;
+		__asm__ __volatile__ (
+			"bl __a_cas"
+			: "+r"(r0) : "r"(r1), "r"(r2)
+			: "memory", "r3", "lr", "ip", "cc" );
+		if (!r0) return t;
+		if ((old=*p)!=t) return old;
+	}
+}
+
+#endif
+
+#ifndef a_barrier
+#define a_barrier a_barrier
+static inline void a_barrier()
+{
+	__asm__ __volatile__("bl __a_barrier"
+		: : : "memory", "cc", "ip", "lr" );
+}
+#endif
+
+#define a_crash a_crash
+static inline void a_crash()
+{
+	__asm__ __volatile__(
+#ifndef __thumb__
+		".word 0xe7f000f0"
+#else
+		".short 0xdeff"
+#endif
+		: : : "memory");
+}
--- a/arch/arm/bits/errno.h
+++ /dev/null
@@ -1,134 +0,0 @@
-#define EPERM            1
-#define ENOENT           2
-#define ESRCH            3
-#define EINTR            4
-#define EIO              5
-#define ENXIO            6
-#define E2BIG            7
-#define ENOEXEC          8
-#define EBADF            9
-#define ECHILD          10
-#define EAGAIN          11
-#define ENOMEM          12
-#define EACCES          13
-#define EFAULT          14
-#define ENOTBLK         15
-#define EBUSY           16
-#define EEXIST          17
-#define EXDEV           18
-#define ENODEV          19
-#define ENOTDIR         20
-#define EISDIR          21
-#define EINVAL          22
-#define ENFILE          23
-#define EMFILE          24
-#define ENOTTY          25
-#define ETXTBSY         26
-#define EFBIG           27
-#define ENOSPC          28
-#define ESPIPE          29
-#define EROFS           30
-#define EMLINK          31
-#define EPIPE           32
-#define EDOM            33
-#define ERANGE          34
-#define EDEADLK         35
-#define ENAMETOOLONG    36
-#define ENOLCK          37
-#define ENOSYS          38
-#define ENOTEMPTY       39
-#define ELOOP           40
-#define EWOULDBLOCK     EAGAIN
-#define ENOMSG          42
-#define EIDRM           43
-#define ECHRNG          44
-#define EL2NSYNC        45
-#define EL3HLT          46
-#define EL3RST          47
-#define ELNRNG          48
-#define EUNATCH         49
-#define ENOCSI          50
-#define EL2HLT          51
-#define EBADE           52
-#define EBADR           53
-#define EXFULL          54
-#define ENOANO          55
-#define EBADRQC         56
-#define EBADSLT         57
-#define EDEADLOCK       EDEADLK
-#define EBFONT          59
-#define ENOSTR          60
-#define ENODATA         61
-#define ETIME           62
-#define ENOSR           63
-#define ENONET          64
-#define ENOPKG          65
-#define EREMOTE         66
-#define ENOLINK         67
-#define EADV            68
-#define ESRMNT          69
-#define ECOMM           70
-#define EPROTO          71
-#define EMULTIHOP       72
-#define EDOTDOT         73
-#define EBADMSG         74
-#define EOVERFLOW       75
-#define ENOTUNIQ        76
-#define EBADFD          77
-#define EREMCHG         78
-#define ELIBACC         79
-#define ELIBBAD         80
-#define ELIBSCN         81
-#define ELIBMAX         82
-#define ELIBEXEC        83
-#define EILSEQ          84
-#define ERESTART        85
-#define ESTRPIPE        86
-#define EUSERS          87
-#define ENOTSOCK        88
-#define EDESTADDRREQ    89
-#define EMSGSIZE        90
-#define EPROTOTYPE      91
-#define ENOPROTOOPT     92
-#define EPROTONOSUPPORT 93
-#define ESOCKTNOSUPPORT 94
-#define EOPNOTSUPP      95
-#define ENOTSUP         EOPNOTSUPP
-#define EPFNOSUPPORT    96
-#define EAFNOSUPPORT    97
-#define EADDRINUSE      98
-#define EADDRNOTAVAIL   99
-#define ENETDOWN        100
-#define ENETUNREACH     101
-#define ENETRESET       102
-#define ECONNABORTED    103
-#define ECONNRESET      104
-#define ENOBUFS         105
-#define EISCONN         106
-#define ENOTCONN        107
-#define ESHUTDOWN       108
-#define ETOOMANYREFS    109
-#define ETIMEDOUT       110
-#define ECONNREFUSED    111
-#define EHOSTDOWN       112
-#define EHOSTUNREACH    113
-#define EALREADY        114
-#define EINPROGRESS     115
-#define ESTALE          116
-#define EUCLEAN         117
-#define ENOTNAM         118
-#define ENAVAIL         119
-#define EISNAM          120
-#define EREMOTEIO       121
-#define EDQUOT          122
-#define ENOMEDIUM       123
-#define EMEDIUMTYPE     124
-#define ECANCELED       125
-#define ENOKEY          126
-#define EKEYEXPIRED     127
-#define EKEYREVOKED     128
-#define EKEYREJECTED    129
-#define EOWNERDEAD      130
-#define ENOTRECOVERABLE 131
-#define ERFKILL         132
-#define EHWPOISON       133
--- a/arch/arm/bits/ioctl.h
+++ /dev/null
@@ -1,197 +0,0 @@
-#define _IOC(a,b,c,d) ( ((a)<<30) | ((b)<<8) | (c) | ((d)<<16) )
-#define _IOC_NONE  0U
-#define _IOC_WRITE 1U
-#define _IOC_READ  2U
-
-#define _IO(a,b) _IOC(_IOC_NONE,(a),(b),0)
-#define _IOW(a,b,c) _IOC(_IOC_WRITE,(a),(b),sizeof(c))
-#define _IOR(a,b,c) _IOC(_IOC_READ,(a),(b),sizeof(c))
-#define _IOWR(a,b,c) _IOC(_IOC_READ|_IOC_WRITE,(a),(b),sizeof(c))
-
-#define TCGETS		0x5401
-#define TCSETS		0x5402
-#define TCSETSW		0x5403
-#define TCSETSF		0x5404
-#define TCGETA		0x5405
-#define TCSETA		0x5406
-#define TCSETAW		0x5407
-#define TCSETAF		0x5408
-#define TCSBRK		0x5409
-#define TCXONC		0x540A
-#define TCFLSH		0x540B
-#define TIOCEXCL	0x540C
-#define TIOCNXCL	0x540D
-#define TIOCSCTTY	0x540E
-#define TIOCGPGRP	0x540F
-#define TIOCSPGRP	0x5410
-#define TIOCOUTQ	0x5411
-#define TIOCSTI		0x5412
-#define TIOCGWINSZ	0x5413
-#define TIOCSWINSZ	0x5414
-#define TIOCMGET	0x5415
-#define TIOCMBIS	0x5416
-#define TIOCMBIC	0x5417
-#define TIOCMSET	0x5418
-#define TIOCGSOFTCAR	0x5419
-#define TIOCSSOFTCAR	0x541A
-#define FIONREAD	0x541B
-#define TIOCINQ		FIONREAD
-#define TIOCLINUX	0x541C
-#define TIOCCONS	0x541D
-#define TIOCGSERIAL	0x541E
-#define TIOCSSERIAL	0x541F
-#define TIOCPKT		0x5420
-#define FIONBIO		0x5421
-#define TIOCNOTTY	0x5422
-#define TIOCSETD	0x5423
-#define TIOCGETD	0x5424
-#define TCSBRKP		0x5425
-#define TIOCTTYGSTRUCT	0x5426
-#define TIOCSBRK	0x5427
-#define TIOCCBRK	0x5428
-#define TIOCGSID	0x5429
-#define TIOCGPTN	0x80045430
-#define TIOCSPTLCK	0x40045431
-#define TCGETX		0x5432
-#define TCSETX		0x5433
-#define TCSETXF		0x5434
-#define TCSETXW		0x5435
-
-#define FIONCLEX	0x5450
-#define FIOCLEX		0x5451
-#define FIOASYNC	0x5452
-#define TIOCSERCONFIG	0x5453
-#define TIOCSERGWILD	0x5454
-#define TIOCSERSWILD	0x5455
-#define TIOCGLCKTRMIOS	0x5456
-#define TIOCSLCKTRMIOS	0x5457
-#define TIOCSERGSTRUCT	0x5458
-#define TIOCSERGETLSR   0x5459
-#define TIOCSERGETMULTI 0x545A
-#define TIOCSERSETMULTI 0x545B
-
-#define TIOCMIWAIT	0x545C
-#define TIOCGICOUNT	0x545D
-#define TIOCGHAYESESP   0x545E
-#define TIOCSHAYESESP   0x545F
-#define FIOQSIZE	0x5460
-
-#define TIOCPKT_DATA		 0
-#define TIOCPKT_FLUSHREAD	 1
-#define TIOCPKT_FLUSHWRITE	 2
-#define TIOCPKT_STOP		 4
-#define TIOCPKT_START		 8
-#define TIOCPKT_NOSTOP		16
-#define TIOCPKT_DOSTOP		32
-#define TIOCPKT_IOCTL		64
-
-#define TIOCSER_TEMT    0x01
-
-struct winsize {
-	unsigned short ws_row;
-	unsigned short ws_col;
-	unsigned short ws_xpixel;
-	unsigned short ws_ypixel;
-};
-
-#define TIOCM_LE        0x001
-#define TIOCM_DTR       0x002
-#define TIOCM_RTS       0x004
-#define TIOCM_ST        0x008
-#define TIOCM_SR        0x010
-#define TIOCM_CTS       0x020
-#define TIOCM_CAR       0x040
-#define TIOCM_RNG       0x080
-#define TIOCM_DSR       0x100
-#define TIOCM_CD        TIOCM_CAR
-#define TIOCM_RI        TIOCM_RNG
-#define TIOCM_OUT1      0x2000
-#define TIOCM_OUT2      0x4000
-#define TIOCM_LOOP      0x8000
-#define TIOCM_MODEM_BITS TIOCM_OUT2
-
-#define N_TTY           0
-#define N_SLIP          1
-#define N_MOUSE         2
-#define N_PPP           3
-#define N_STRIP         4
-#define N_AX25          5
-#define N_X25           6
-#define N_6PACK         7
-#define N_MASC          8
-#define N_R3964         9
-#define N_PROFIBUS_FDL  10
-#define N_IRDA          11
-#define N_SMSBLOCK      12
-#define N_HDLC          13
-#define N_SYNC_PPP      14
-#define N_HCI           15
-
-#define FIOSETOWN       0x8901
-#define SIOCSPGRP       0x8902
-#define FIOGETOWN       0x8903
-#define SIOCGPGRP       0x8904
-#define SIOCATMARK      0x8905
-#define SIOCGSTAMP      0x8906
-
-#define SIOCADDRT       0x890B
-#define SIOCDELRT       0x890C
-#define SIOCRTMSG       0x890D
-
-#define SIOCGIFNAME     0x8910
-#define SIOCSIFLINK     0x8911
-#define SIOCGIFCONF     0x8912
-#define SIOCGIFFLAGS    0x8913
-#define SIOCSIFFLAGS    0x8914
-#define SIOCGIFADDR     0x8915
-#define SIOCSIFADDR     0x8916
-#define SIOCGIFDSTADDR  0x8917
-#define SIOCSIFDSTADDR  0x8918
-#define SIOCGIFBRDADDR  0x8919
-#define SIOCSIFBRDADDR  0x891a
-#define SIOCGIFNETMASK  0x891b
-#define SIOCSIFNETMASK  0x891c
-#define SIOCGIFMETRIC   0x891d
-#define SIOCSIFMETRIC   0x891e
-#define SIOCGIFMEM      0x891f
-#define SIOCSIFMEM      0x8920
-#define SIOCGIFMTU      0x8921
-#define SIOCSIFMTU      0x8922
-#define SIOCSIFHWADDR   0x8924
-#define SIOCGIFENCAP    0x8925
-#define SIOCSIFENCAP    0x8926
-#define SIOCGIFHWADDR   0x8927
-#define SIOCGIFSLAVE    0x8929
-#define SIOCSIFSLAVE    0x8930
-#define SIOCADDMULTI    0x8931
-#define SIOCDELMULTI    0x8932
-#define SIOCGIFINDEX    0x8933
-#define SIOGIFINDEX     SIOCGIFINDEX
-#define SIOCSIFPFLAGS   0x8934
-#define SIOCGIFPFLAGS   0x8935
-#define SIOCDIFADDR     0x8936
-#define SIOCSIFHWBROADCAST 0x8937
-#define SIOCGIFCOUNT    0x8938
-
-#define SIOCGIFBR       0x8940
-#define SIOCSIFBR       0x8941
-
-#define SIOCGIFTXQLEN   0x8942
-#define SIOCSIFTXQLEN   0x8943
-
-#define SIOCDARP        0x8953
-#define SIOCGARP        0x8954
-#define SIOCSARP        0x8955
-
-#define SIOCDRARP       0x8960
-#define SIOCGRARP       0x8961
-#define SIOCSRARP       0x8962
-
-#define SIOCGIFMAP      0x8970
-#define SIOCSIFMAP      0x8971
-
-#define SIOCADDDLCI     0x8980
-#define SIOCDELDLCI     0x8981
-
-#define SIOCDEVPRIVATE		0x89F0
-#define SIOCPROTOPRIVATE	0x89E0
--- a/arch/arm/bits/ipc.h
+++ /dev/null
@@ -1,14 +0,0 @@
-struct ipc_perm
-{
-	key_t __ipc_perm_key;
-	uid_t uid;
-	gid_t gid;
-	uid_t cuid;
-	gid_t cgid;
-	mode_t mode;
-	int __ipc_perm_seq;
-	long __pad1;
-	long __pad2;
-};
-
-#define IPC_64 0x100
--- a/arch/arm/bits/mman.h
+++ b/arch/arm/bits/mman.h
@@ -37,6 +37,7 @@
 
 #define MCL_CURRENT     1
 #define MCL_FUTURE      2
+#define MCL_ONFAULT     4
 
 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
 #define MADV_NORMAL      0
--- a/arch/arm/bits/msg.h
+++ /dev/null
@@ -1,16 +0,0 @@
-struct msqid_ds
-{
-	struct ipc_perm msg_perm;
-	time_t msg_stime;
-	int __unused1;
-	time_t msg_rtime;
-	int __unused2;
-	time_t msg_ctime;
-	int __unused3;
-	unsigned long msg_cbytes;
-	msgqnum_t msg_qnum;
-	msglen_t msg_qbytes;
-	pid_t msg_lspid;
-	pid_t msg_lrpid;
-	unsigned long __unused[2];
-};
--- a/arch/arm/bits/sem.h
+++ /dev/null
@@ -1,16 +0,0 @@
-struct semid_ds {
-	struct ipc_perm sem_perm;
-	time_t sem_otime;
-	time_t __unused1;
-	time_t sem_ctime;
-	time_t __unused2;
-#if __BYTE_ORDER == __LITTLE_ENDIAN
-	unsigned short sem_nsems;
-	char __sem_nsems_pad[sizeof(time_t)-sizeof(short)];
-#else
-	char __sem_nsems_pad[sizeof(time_t)-sizeof(short)];
-	unsigned short sem_nsems;
-#endif
-	time_t __unused3;
-	time_t __unused4;
-};
--- a/arch/arm/bits/shm.h
+++ /dev/null
@@ -1,29 +0,0 @@
-#define SHMLBA 4096
-
-struct shmid_ds
-{
-	struct ipc_perm shm_perm;
-	size_t shm_segsz;
-	time_t shm_atime;
-	int __unused1;
-	time_t shm_dtime;
-	int __unused2;
-	time_t shm_ctime;
-	int __unused3;
-	pid_t shm_cpid;
-	pid_t shm_lpid;
-	unsigned long shm_nattch;
-	unsigned long __pad1;
-	unsigned long __pad2;
-};
-
-struct shminfo {
-	unsigned long shmmax, shmmin, shmmni, shmseg, shmall, __unused[4];
-};
-
-struct shm_info {
-	int __used_ids;
-	unsigned long shm_tot, shm_rss, shm_swp;
-	unsigned long __swap_attempts, __swap_successes;
-};
-
--- a/arch/arm/bits/socket.h
+++ /dev/null
@@ -1,17 +0,0 @@
-struct msghdr
-{
-	void *msg_name;
-	socklen_t msg_namelen;
-	struct iovec *msg_iov;
-	int msg_iovlen;
-	void *msg_control;
-	socklen_t msg_controllen;
-	int msg_flags;
-};
-
-struct cmsghdr
-{
-	socklen_t cmsg_len;
-	int cmsg_level;
-	int cmsg_type;
-};
--- a/arch/arm/bits/statfs.h
+++ /dev/null
@@ -1,7 +0,0 @@
-struct statfs {
-	unsigned long f_type, f_bsize;
-	fsblkcnt_t f_blocks, f_bfree, f_bavail;
-	fsfilcnt_t f_files, f_ffree;
-	fsid_t f_fsid;
-	unsigned long f_namelen, f_frsize, f_flags, f_spare[4];
-};
--- a/arch/arm/bits/stdarg.h
+++ /dev/null
@@ -1,4 +0,0 @@
-#define va_start(v,l)   __builtin_va_start(v,l)
-#define va_end(v)       __builtin_va_end(v)
-#define va_arg(v,l)     __builtin_va_arg(v,l)
-#define va_copy(d,s)    __builtin_va_copy(d,s)
--- a/arch/arm/bits/syscall.h
+++ b/arch/arm/bits/syscall.h
@@ -341,6 +341,9 @@
 #define __NR_memfd_create	385
 #define __NR_bpf	386
 #define __NR_execveat	387
+#define __NR_userfaultfd	388
+#define __NR_membarrier		389
+#define __NR_mlock2		390
 
 #define __ARM_NR_breakpoint	0x0f0001
 #define __ARM_NR_cacheflush	0x0f0002
@@ -693,3 +696,6 @@
 #define SYS_memfd_create	385
 #define SYS_bpf	386
 #define SYS_execveat	387
+#define SYS_userfaultfd	388
+#define SYS_membarrier		389
+#define SYS_mlock2		390
--- a/arch/arm/bits/termios.h
+++ /dev/null
@@ -1,160 +0,0 @@
-struct termios
-{
-	tcflag_t c_iflag;
-	tcflag_t c_oflag;
-	tcflag_t c_cflag;
-	tcflag_t c_lflag;
-	cc_t c_line;
-	cc_t c_cc[NCCS];
-	speed_t __c_ispeed;
-	speed_t __c_ospeed;
-};
-
-#define VINTR     0
-#define VQUIT     1
-#define VERASE    2
-#define VKILL     3
-#define VEOF      4
-#define VTIME     5
-#define VMIN      6
-#define VSWTC     7
-#define VSTART    8
-#define VSTOP     9
-#define VSUSP    10
-#define VEOL     11
-#define VREPRINT 12
-#define VDISCARD 13
-#define VWERASE  14
-#define VLNEXT   15
-#define VEOL2    16
-
-#define IGNBRK  0000001
-#define BRKINT  0000002
-#define IGNPAR  0000004
-#define PARMRK  0000010
-#define INPCK   0000020
-#define ISTRIP  0000040
-#define INLCR   0000100
-#define IGNCR   0000200
-#define ICRNL   0000400
-#define IUCLC   0001000
-#define IXON    0002000
-#define IXANY   0004000
-#define IXOFF   0010000
-#define IMAXBEL 0020000
-#define IUTF8   0040000
-
-#define OPOST  0000001
-#define OLCUC  0000002
-#define ONLCR  0000004
-#define OCRNL  0000010
-#define ONOCR  0000020
-#define ONLRET 0000040
-#define OFILL  0000100
-#define OFDEL  0000200
-#define NLDLY  0000400
-#define NL0    0000000
-#define NL1    0000400
-#define CRDLY  0003000
-#define CR0    0000000
-#define CR1    0001000
-#define CR2    0002000
-#define CR3    0003000
-#define TABDLY 0014000
-#define TAB0   0000000
-#define TAB1   0004000
-#define TAB2   0010000
-#define TAB3   0014000
-#define BSDLY  0020000
-#define BS0    0000000
-#define BS1    0020000
-#define FFDLY  0100000
-#define FF0    0000000
-#define FF1    0100000
-
-#define VTDLY  0040000
-#define VT0    0000000
-#define VT1    0040000
-
-#define B0       0000000
-#define B50      0000001
-#define B75      0000002
-#define B110     0000003
-#define B134     0000004
-#define B150     0000005
-#define B200     0000006
-#define B300     0000007
-#define B600     0000010
-#define B1200    0000011
-#define B1800    0000012
-#define B2400    0000013
-#define B4800    0000014
-#define B9600    0000015
-#define B19200   0000016
-#define B38400   0000017
-
-#define B57600   0010001
-#define B115200  0010002
-#define B230400  0010003
-#define B460800  0010004
-#define B500000  0010005
-#define B576000  0010006
-#define B921600  0010007
-#define B1000000 0010010
-#define B1152000 0010011
-#define B1500000 0010012
-#define B2000000 0010013
-#define B2500000 0010014
-#define B3000000 0010015
-#define B3500000 0010016
-#define B4000000 0010017
-
-#define CBAUD    0010017
-
-#define CSIZE  0000060
-#define CS5    0000000
-#define CS6    0000020
-#define CS7    0000040
-#define CS8    0000060
-#define CSTOPB 0000100
-#define CREAD  0000200
-#define PARENB 0000400
-#define PARODD 0001000
-#define HUPCL  0002000
-#define CLOCAL 0004000
-
-#define ISIG   0000001
-#define ICANON 0000002
-#define ECHO   0000010
-#define ECHOE  0000020
-#define ECHOK  0000040
-#define ECHONL 0000100
-#define NOFLSH 0000200
-#define TOSTOP 0000400
-#define IEXTEN 0100000
-
-#define ECHOCTL 0001000
-#define ECHOPRT 0002000
-#define ECHOKE 0004000
-#define FLUSHO 0010000
-#define PENDIN 0040000
-
-#define TCOOFF 0
-#define TCOON  1
-#define TCIOFF 2
-#define TCION  3
-
-#define TCIFLUSH  0
-#define TCOFLUSH  1
-#define TCIOFLUSH 2
-
-#define TCSANOW   0
-#define TCSADRAIN 1
-#define TCSAFLUSH 2
-
-#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
-#define CBAUDEX 0010000
-#define CRTSCTS  020000000000
-#define EXTPROC 0200000
-#define XTABS  0014000
-#endif
--- a/arch/arm/pthread_arch.h
+++ b/arch/arm/pthread_arch.h
@@ -27,4 +27,4 @@ static inline pthread_t __pthread_self()
 #define TLS_ABOVE_TP
 #define TP_ADJ(p) ((char *)(p) + sizeof(struct pthread) - 8)
 
-#define CANCEL_REG_IP 18
+#define MC_PC arm_pc
--- a/arch/arm/reloc.h
+++ b/arch/arm/reloc.h
@@ -6,10 +6,10 @@
 #define ENDIAN_SUFFIX ""
 #endif
 
-#if __SOFTFP__
-#define FP_SUFFIX ""
-#else
+#if __ARM_PCS_VFP
 #define FP_SUFFIX "hf"
+#else
+#define FP_SUFFIX ""
 #endif
 
 #define LDSO_ARCH "arm" ENDIAN_SUFFIX FP_SUFFIX
@@ -28,10 +28,5 @@
 #define REL_TPOFF       R_ARM_TLS_TPOFF32
 //#define REL_TLSDESC     R_ARM_TLS_DESC
 
-#ifdef __thumb__
 #define CRTJMP(pc,sp) __asm__ __volatile__( \
 	"mov sp,%1 ; bx %0" : : "r"(pc), "r"(sp) : "memory" )
-#else
-#define CRTJMP(pc,sp) __asm__ __volatile__( \
-	"mov sp,%1 ; tst %0,#1 ; moveq pc,%0 ; bx %0" : : "r"(pc), "r"(sp) : "memory" )
-#endif
--- a/arch/arm/src/__aeabi_atexit.c
+++ /dev/null
@@ -1,6 +0,0 @@
-int __cxa_atexit(void (*func)(void *), void *arg, void *dso);
-
-int __aeabi_atexit (void *obj, void (*func) (void *), void *d)
-{
-	return __cxa_atexit (func, obj, d);
-}
--- a/arch/arm/src/__aeabi_memclr.c
+++ /dev/null
@@ -1,9 +0,0 @@
-#include <string.h>
-#include "libc.h"
-
-void __aeabi_memclr(void *dest, size_t n)
-{
-	memset(dest, 0, n);
-}
-weak_alias(__aeabi_memclr, __aeabi_memclr4);
-weak_alias(__aeabi_memclr, __aeabi_memclr8);
--- a/arch/arm/src/__aeabi_memcpy.c
+++ /dev/null
@@ -1,9 +0,0 @@
-#include <string.h>
-#include "libc.h"
-
-void __aeabi_memcpy(void *restrict dest, const void *restrict src, size_t n)
-{
-	memcpy(dest, src, n);
-}
-weak_alias(__aeabi_memcpy, __aeabi_memcpy4);
-weak_alias(__aeabi_memcpy, __aeabi_memcpy8);
--- a/arch/arm/src/__aeabi_memmove.c
+++ /dev/null
@@ -1,9 +0,0 @@
-#include <string.h>
-#include "libc.h"
-
-void __aeabi_memmove(void *dest, const void *src, size_t n)
-{
-	memmove(dest, src, n);
-}
-weak_alias(__aeabi_memmove, __aeabi_memmove4);
-weak_alias(__aeabi_memmove, __aeabi_memmove8);
--- a/arch/arm/src/__aeabi_memset.c
+++ /dev/null
@@ -1,9 +0,0 @@
-#include <string.h>
-#include "libc.h"
-
-void __aeabi_memset(void *dest, size_t n, int c)
-{
-	memset(dest, c, n);
-}
-weak_alias(__aeabi_memset, __aeabi_memset4);
-weak_alias(__aeabi_memset, __aeabi_memset8);
--- a/arch/arm/src/__set_thread_area.c
+++ /dev/null
@@ -1,49 +0,0 @@
-#include <stdint.h>
-#include <elf.h>
-#include "pthread_impl.h"
-#include "libc.h"
-
-#define HWCAP_TLS (1 << 15)
-
-extern const unsigned char __attribute__((__visibility__("hidden")))
-	__a_barrier_dummy[], __a_barrier_oldkuser[],
-	__a_barrier_v6[], __a_barrier_v7[],
-	__a_cas_dummy[], __a_cas_v6[], __a_cas_v7[],
-	__a_gettp_dummy[];
-
-#define __a_barrier_kuser 0xffff0fa0
-#define __a_cas_kuser 0xffff0fc0
-#define __a_gettp_kuser 0xffff0fe0
-
-extern uintptr_t __attribute__((__visibility__("hidden")))
-	__a_barrier_ptr, __a_cas_ptr, __a_gettp_ptr;
-
-#define SET(op,ver) (__a_##op##_ptr = \
-	(uintptr_t)__a_##op##_##ver - (uintptr_t)__a_##op##_dummy)
-
-int __set_thread_area(void *p)
-{
-#if !__ARM_ARCH_7A__ && !__ARM_ARCH_7R__ && __ARM_ARCH < 7
-	if (__hwcap & HWCAP_TLS) {
-		size_t *aux;
-		SET(cas, v7);
-		SET(barrier, v7);
-		for (aux=libc.auxv; *aux; aux+=2) {
-			if (*aux != AT_PLATFORM) continue;
-			const char *s = (void *)aux[1];
-			if (s[0]!='v' || s[1]!='6' || s[2]-'0'<10u) break;
-			SET(cas, v6);
-			SET(barrier, v6);
-			break;
-		}
-	} else {
-		int ver = *(int *)0xffff0ffc;
-		SET(gettp, kuser);
-		SET(cas, kuser);
-		SET(barrier, kuser);
-		if (ver < 2) a_crash();
-		if (ver < 3) SET(barrier, oldkuser);
-	}
-#endif
-	return __syscall(0xf0005, p);
-}
--- a/arch/arm/src/arm/atomics.s
+++ /dev/null
@@ -1,116 +0,0 @@
-.text
-
-.global __a_barrier
-.hidden __a_barrier
-.type __a_barrier,%function
-__a_barrier:
-	ldr ip,1f
-	ldr ip,[pc,ip]
-	add pc,pc,ip
-1:	.word __a_barrier_ptr-1b
-.global __a_barrier_dummy
-.hidden __a_barrier_dummy
-__a_barrier_dummy:
-	tst lr,#1
-	moveq pc,lr
-	bx lr
-.global __a_barrier_oldkuser
-.hidden __a_barrier_oldkuser
-__a_barrier_oldkuser:
-	push {r0,r1,r2,r3,ip,lr}
-	mov r1,r0
-	mov r2,sp
-	ldr ip,=0xffff0fc0
-	mov lr,pc
-	mov pc,ip
-	pop {r0,r1,r2,r3,ip,lr}
-	tst lr,#1
-	moveq pc,lr
-	bx lr
-.global __a_barrier_v6
-.hidden __a_barrier_v6
-__a_barrier_v6:
-	mcr p15,0,r0,c7,c10,5
-	bx lr
-.global __a_barrier_v7
-.hidden __a_barrier_v7
-__a_barrier_v7:
-	.word 0xf57ff05b        /* dmb ish */
-	bx lr
-
-.global __a_cas
-.hidden __a_cas
-.type __a_cas,%function
-__a_cas:
-	ldr ip,1f
-	ldr ip,[pc,ip]
-	add pc,pc,ip
-1:	.word __a_cas_ptr-1b
-.global __a_cas_dummy
-.hidden __a_cas_dummy
-__a_cas_dummy:
-	mov r3,r0
-	ldr r0,[r2]
-	subs r0,r3,r0
-	streq r1,[r2]
-	tst lr,#1
-	moveq pc,lr
-	bx lr
-.global __a_cas_v6
-.hidden __a_cas_v6
-__a_cas_v6:
-	mov r3,r0
-	mcr p15,0,r0,c7,c10,5
-1:	.word 0xe1920f9f        /* ldrex r0,[r2] */
-	subs r0,r3,r0
-	.word 0x01820f91        /* strexeq r0,r1,[r2] */
-	teqeq r0,#1
-	beq 1b
-	mcr p15,0,r0,c7,c10,5
-	bx lr
-.global __a_cas_v7
-.hidden __a_cas_v7
-__a_cas_v7:
-	mov r3,r0
-	.word 0xf57ff05b        /* dmb ish */
-1:	.word 0xe1920f9f        /* ldrex r0,[r2] */
-	subs r0,r3,r0
-	.word 0x01820f91        /* strexeq r0,r1,[r2] */
-	teqeq r0,#1
-	beq 1b
-	.word 0xf57ff05b        /* dmb ish */
-	bx lr
-
-.global __aeabi_read_tp
-.type __aeabi_read_tp,%function
-__aeabi_read_tp:
-
-.global __a_gettp
-.hidden __a_gettp
-.type __a_gettp,%function
-__a_gettp:
-	ldr r0,1f
-	ldr r0,[pc,r0]
-	add pc,pc,r0
-1:	.word __a_gettp_ptr-1b
-.global __a_gettp_dummy
-.hidden __a_gettp_dummy
-__a_gettp_dummy:
-	mrc p15,0,r0,c13,c0,3
-	bx lr
-
-.data
-.global __a_barrier_ptr
-.hidden __a_barrier_ptr
-__a_barrier_ptr:
-	.word 0
-
-.global __a_cas_ptr
-.hidden __a_cas_ptr
-__a_cas_ptr:
-	.word 0
-
-.global __a_gettp_ptr
-.hidden __a_gettp_ptr
-__a_gettp_ptr:
-	.word 0
--- a/arch/arm/src/find_exidx.c
+++ /dev/null
@@ -1,42 +0,0 @@
-#define _GNU_SOURCE
-#include <link.h>
-#include <stdint.h>
-
-struct find_exidx_data {
-	uintptr_t pc, exidx_start;
-	int exidx_len;
-};
-
-static int find_exidx(struct dl_phdr_info *info, size_t size, void *ptr)
-{
-	struct find_exidx_data *data = ptr;
-	const ElfW(Phdr) *phdr = info->dlpi_phdr;
-	uintptr_t addr, exidx_start = 0;
-	int i, match = 0, exidx_len = 0;
-
-	for (i = info->dlpi_phnum; i > 0; i--, phdr++) {
-		addr = info->dlpi_addr + phdr->p_vaddr;
-		switch (phdr->p_type) {
-		case PT_LOAD:
-			match |= data->pc >= addr && data->pc < addr + phdr->p_memsz;
-			break;
-		case PT_ARM_EXIDX:
-			exidx_start = addr;
-			exidx_len = phdr->p_memsz;
-			break;
-		}
-	}
-	data->exidx_start = exidx_start;
-	data->exidx_len = exidx_len;
-	return match;
-}
-
-uintptr_t __gnu_Unwind_Find_exidx(uintptr_t pc, int *pcount)
-{
-	struct find_exidx_data data;
-	data.pc = pc;
-	if (dl_iterate_phdr(find_exidx, &data) <= 0)
-		return 0;
-	*pcount = data.exidx_len / 8;
-	return data.exidx_start;
-}
--- /dev/null
+++ b/arch/generic/bits/errno.h
@@ -0,0 +1,134 @@
+#define EPERM            1
+#define ENOENT           2
+#define ESRCH            3
+#define EINTR            4
+#define EIO              5
+#define ENXIO            6
+#define E2BIG            7
+#define ENOEXEC          8
+#define EBADF            9
+#define ECHILD          10
+#define EAGAIN          11
+#define ENOMEM          12
+#define EACCES          13
+#define EFAULT          14
+#define ENOTBLK         15
+#define EBUSY           16
+#define EEXIST          17
+#define EXDEV           18
+#define ENODEV          19
+#define ENOTDIR         20
+#define EISDIR          21
+#define EINVAL          22
+#define ENFILE          23
+#define EMFILE          24
+#define ENOTTY          25
+#define ETXTBSY         26
+#define EFBIG           27
+#define ENOSPC          28
+#define ESPIPE          29
+#define EROFS           30
+#define EMLINK          31
+#define EPIPE           32
+#define EDOM            33
+#define ERANGE          34
+#define EDEADLK         35
+#define ENAMETOOLONG    36
+#define ENOLCK          37
+#define ENOSYS          38
+#define ENOTEMPTY       39
+#define ELOOP           40
+#define EWOULDBLOCK     EAGAIN
+#define ENOMSG          42
+#define EIDRM           43
+#define ECHRNG          44
+#define EL2NSYNC        45
+#define EL3HLT          46
+#define EL3RST          47
+#define ELNRNG          48
+#define EUNATCH         49
+#define ENOCSI          50
+#define EL2HLT          51
+#define EBADE           52
+#define EBADR           53
+#define EXFULL          54
+#define ENOANO          55
+#define EBADRQC         56
+#define EBADSLT         57
+#define EDEADLOCK       EDEADLK
+#define EBFONT          59
+#define ENOSTR          60
+#define ENODATA         61
+#define ETIME           62
+#define ENOSR           63
+#define ENONET          64
+#define ENOPKG          65
+#define EREMOTE         66
+#define ENOLINK         67
+#define EADV            68
+#define ESRMNT          69
+#define ECOMM           70
+#define EPROTO          71
+#define EMULTIHOP       72
+#define EDOTDOT         73
+#define EBADMSG         74
+#define EOVERFLOW       75
+#define ENOTUNIQ        76
+#define EBADFD          77
+#define EREMCHG         78
+#define ELIBACC         79
+#define ELIBBAD         80
+#define ELIBSCN         81
+#define ELIBMAX         82
+#define ELIBEXEC        83
+#define EILSEQ          84
+#define ERESTART        85
+#define ESTRPIPE        86
+#define EUSERS          87
+#define ENOTSOCK        88
+#define EDESTADDRREQ    89
+#define EMSGSIZE        90
+#define EPROTOTYPE      91
+#define ENOPROTOOPT     92
+#define EPROTONOSUPPORT 93
+#define ESOCKTNOSUPPORT 94
+#define EOPNOTSUPP      95
+#define ENOTSUP         EOPNOTSUPP
+#define EPFNOSUPPORT    96
+#define EAFNOSUPPORT    97
+#define EADDRINUSE      98
+#define EADDRNOTAVAIL   99
+#define ENETDOWN        100
+#define ENETUNREACH     101
+#define ENETRESET       102
+#define ECONNABORTED    103
+#define ECONNRESET      104
+#define ENOBUFS         105
+#define EISCONN         106
+#define ENOTCONN        107
+#define ESHUTDOWN       108
+#define ETOOMANYREFS    109
+#define ETIMEDOUT       110
+#define ECONNREFUSED    111
+#define EHOSTDOWN       112
+#define EHOSTUNREACH    113
+#define EALREADY        114
+#define EINPROGRESS     115
+#define ESTALE          116
+#define EUCLEAN         117
+#define ENOTNAM         118
+#define ENAVAIL         119
+#define EISNAM          120
+#define EREMOTEIO       121
+#define EDQUOT          122
+#define ENOMEDIUM       123
+#define EMEDIUMTYPE     124
+#define ECANCELED       125
+#define ENOKEY          126
+#define EKEYEXPIRED     127
+#define EKEYREVOKED     128
+#define EKEYREJECTED    129
+#define EOWNERDEAD      130
+#define ENOTRECOVERABLE 131
+#define ERFKILL         132
+#define EHWPOISON       133
--- /dev/null
+++ b/arch/generic/bits/fcntl.h
@@ -0,0 +1,40 @@
+#define O_CREAT        0100
+#define O_EXCL         0200
+#define O_NOCTTY       0400
+#define O_TRUNC       01000
+#define O_APPEND      02000
+#define O_NONBLOCK    04000
+#define O_DSYNC      010000
+#define O_SYNC     04010000
+#define O_RSYNC    04010000
+#define O_DIRECTORY 0200000
+#define O_NOFOLLOW  0400000
+#define O_CLOEXEC  02000000
+
+#define O_ASYNC      020000
+#define O_DIRECT     040000
+#define O_LARGEFILE 0100000
+#define O_NOATIME  01000000
+#define O_PATH    010000000
+#define O_TMPFILE 020200000
+#define O_NDELAY O_NONBLOCK
+
+#define F_DUPFD  0
+#define F_GETFD  1
+#define F_SETFD  2
+#define F_GETFL  3
+#define F_SETFL  4
+
+#define F_SETOWN 8
+#define F_GETOWN 9
+#define F_SETSIG 10
+#define F_GETSIG 11
+
+#define F_GETLK 12
+#define F_SETLK 13
+#define F_SETLKW 14
+
+#define F_SETOWN_EX 15
+#define F_GETOWN_EX 16
+
+#define F_GETOWNER_UIDS 17
--- /dev/null
+++ b/arch/generic/bits/fenv.h
@@ -0,0 +1,10 @@
+#define FE_ALL_EXCEPT 0
+#define FE_TONEAREST  0
+
+typedef unsigned long fexcept_t;
+
+typedef struct {
+	unsigned long __cw;
+} fenv_t;
+
+#define FE_DFL_ENV      ((const fenv_t *) -1)
--- /dev/null
+++ b/arch/generic/bits/ioctl.h
@@ -0,0 +1,197 @@
+#define _IOC(a,b,c,d) ( ((a)<<30) | ((b)<<8) | (c) | ((d)<<16) )
+#define _IOC_NONE  0U
+#define _IOC_WRITE 1U
+#define _IOC_READ  2U
+
+#define _IO(a,b) _IOC(_IOC_NONE,(a),(b),0)
+#define _IOW(a,b,c) _IOC(_IOC_WRITE,(a),(b),sizeof(c))
+#define _IOR(a,b,c) _IOC(_IOC_READ,(a),(b),sizeof(c))
+#define _IOWR(a,b,c) _IOC(_IOC_READ|_IOC_WRITE,(a),(b),sizeof(c))
+
+#define TCGETS		0x5401
+#define TCSETS		0x5402
+#define TCSETSW		0x5403
+#define TCSETSF		0x5404
+#define TCGETA		0x5405
+#define TCSETA		0x5406
+#define TCSETAW		0x5407
+#define TCSETAF		0x5408
+#define TCSBRK		0x5409
+#define TCXONC		0x540A
+#define TCFLSH		0x540B
+#define TIOCEXCL	0x540C
+#define TIOCNXCL	0x540D
+#define TIOCSCTTY	0x540E
+#define TIOCGPGRP	0x540F
+#define TIOCSPGRP	0x5410
+#define TIOCOUTQ	0x5411
+#define TIOCSTI		0x5412
+#define TIOCGWINSZ	0x5413
+#define TIOCSWINSZ	0x5414
+#define TIOCMGET	0x5415
+#define TIOCMBIS	0x5416
+#define TIOCMBIC	0x5417
+#define TIOCMSET	0x5418
+#define TIOCGSOFTCAR	0x5419
+#define TIOCSSOFTCAR	0x541A
+#define FIONREAD	0x541B
+#define TIOCINQ		FIONREAD
+#define TIOCLINUX	0x541C
+#define TIOCCONS	0x541D
+#define TIOCGSERIAL	0x541E
+#define TIOCSSERIAL	0x541F
+#define TIOCPKT		0x5420
+#define FIONBIO		0x5421
+#define TIOCNOTTY	0x5422
+#define TIOCSETD	0x5423
+#define TIOCGETD	0x5424
+#define TCSBRKP		0x5425
+#define TIOCTTYGSTRUCT	0x5426
+#define TIOCSBRK	0x5427
+#define TIOCCBRK	0x5428
+#define TIOCGSID	0x5429
+#define TIOCGPTN	0x80045430
+#define TIOCSPTLCK	0x40045431
+#define TCGETX		0x5432
+#define TCSETX		0x5433
+#define TCSETXF		0x5434
+#define TCSETXW		0x5435
+
+#define FIONCLEX	0x5450
+#define FIOCLEX		0x5451
+#define FIOASYNC	0x5452
+#define TIOCSERCONFIG	0x5453
+#define TIOCSERGWILD	0x5454
+#define TIOCSERSWILD	0x5455
+#define TIOCGLCKTRMIOS	0x5456
+#define TIOCSLCKTRMIOS	0x5457
+#define TIOCSERGSTRUCT	0x5458
+#define TIOCSERGETLSR   0x5459
+#define TIOCSERGETMULTI 0x545A
+#define TIOCSERSETMULTI 0x545B
+
+#define TIOCMIWAIT	0x545C
+#define TIOCGICOUNT	0x545D
+#define TIOCGHAYESESP   0x545E
+#define TIOCSHAYESESP   0x545F
+#define FIOQSIZE	0x5460
+
+#define TIOCPKT_DATA		 0
+#define TIOCPKT_FLUSHREAD	 1
+#define TIOCPKT_FLUSHWRITE	 2
+#define TIOCPKT_STOP		 4
+#define TIOCPKT_START		 8
+#define TIOCPKT_NOSTOP		16
+#define TIOCPKT_DOSTOP		32
+#define TIOCPKT_IOCTL		64
+
+#define TIOCSER_TEMT    0x01
+
+struct winsize {
+	unsigned short ws_row;
+	unsigned short ws_col;
+	unsigned short ws_xpixel;
+	unsigned short ws_ypixel;
+};
+
+#define TIOCM_LE        0x001
+#define TIOCM_DTR       0x002
+#define TIOCM_RTS       0x004
+#define TIOCM_ST        0x008
+#define TIOCM_SR        0x010
+#define TIOCM_CTS       0x020
+#define TIOCM_CAR       0x040
+#define TIOCM_RNG       0x080
+#define TIOCM_DSR       0x100
+#define TIOCM_CD        TIOCM_CAR
+#define TIOCM_RI        TIOCM_RNG
+#define TIOCM_OUT1      0x2000
+#define TIOCM_OUT2      0x4000
+#define TIOCM_LOOP      0x8000
+#define TIOCM_MODEM_BITS TIOCM_OUT2
+
+#define N_TTY           0
+#define N_SLIP          1
+#define N_MOUSE         2
+#define N_PPP           3
+#define N_STRIP         4
+#define N_AX25          5
+#define N_X25           6
+#define N_6PACK         7
+#define N_MASC          8
+#define N_R3964         9
+#define N_PROFIBUS_FDL  10
+#define N_IRDA          11
+#define N_SMSBLOCK      12
+#define N_HDLC          13
+#define N_SYNC_PPP      14
+#define N_HCI           15
+
+#define FIOSETOWN       0x8901
+#define SIOCSPGRP       0x8902
+#define FIOGETOWN       0x8903
+#define SIOCGPGRP       0x8904
+#define SIOCATMARK      0x8905
+#define SIOCGSTAMP      0x8906
+
+#define SIOCADDRT       0x890B
+#define SIOCDELRT       0x890C
+#define SIOCRTMSG       0x890D
+
+#define SIOCGIFNAME     0x8910
+#define SIOCSIFLINK     0x8911
+#define SIOCGIFCONF     0x8912
+#define SIOCGIFFLAGS    0x8913
+#define SIOCSIFFLAGS    0x8914
+#define SIOCGIFADDR     0x8915
+#define SIOCSIFADDR     0x8916
+#define SIOCGIFDSTADDR  0x8917
+#define SIOCSIFDSTADDR  0x8918
+#define SIOCGIFBRDADDR  0x8919
+#define SIOCSIFBRDADDR  0x891a
+#define SIOCGIFNETMASK  0x891b
+#define SIOCSIFNETMASK  0x891c
+#define SIOCGIFMETRIC   0x891d
+#define SIOCSIFMETRIC   0x891e
+#define SIOCGIFMEM      0x891f
+#define SIOCSIFMEM      0x8920
+#define SIOCGIFMTU      0x8921
+#define SIOCSIFMTU      0x8922
+#define SIOCSIFHWADDR   0x8924
+#define SIOCGIFENCAP    0x8925
+#define SIOCSIFENCAP    0x8926
+#define SIOCGIFHWADDR   0x8927
+#define SIOCGIFSLAVE    0x8929
+#define SIOCSIFSLAVE    0x8930
+#define SIOCADDMULTI    0x8931
+#define SIOCDELMULTI    0x8932
+#define SIOCGIFINDEX    0x8933
+#define SIOGIFINDEX     SIOCGIFINDEX
+#define SIOCSIFPFLAGS   0x8934
+#define SIOCGIFPFLAGS   0x8935
+#define SIOCDIFADDR     0x8936
+#define SIOCSIFHWBROADCAST 0x8937
+#define SIOCGIFCOUNT    0x8938
+
+#define SIOCGIFBR       0x8940
+#define SIOCSIFBR       0x8941
+
+#define SIOCGIFTXQLEN   0x8942
+#define SIOCSIFTXQLEN   0x8943
+
+#define SIOCDARP        0x8953
+#define SIOCGARP        0x8954
+#define SIOCSARP        0x8955
+
+#define SIOCDRARP       0x8960
+#define SIOCGRARP       0x8961
+#define SIOCSRARP       0x8962
+
+#define SIOCGIFMAP      0x8970
+#define SIOCSIFMAP      0x8971
+
+#define SIOCADDDLCI     0x8980
+#define SIOCDELDLCI     0x8981
+
+#define SIOCDEVPRIVATE		0x89F0
+#define SIOCPROTOPRIVATE	0x89E0
--- /dev/null
+++ b/arch/generic/bits/ipc.h
@@ -0,0 +1,14 @@
+struct ipc_perm
+{
+	key_t __ipc_perm_key;
+	uid_t uid;
+	gid_t gid;
+	uid_t cuid;
+	gid_t cgid;
+	mode_t mode;
+	int __ipc_perm_seq;
+	long __pad1;
+	long __pad2;
+};
+
+#define IPC_64 0x100
--- /dev/null
+++ b/arch/generic/bits/msg.h
@@ -0,0 +1,16 @@
+struct msqid_ds
+{
+	struct ipc_perm msg_perm;
+	time_t msg_stime;
+	int __unused1;
+	time_t msg_rtime;
+	int __unused2;
+	time_t msg_ctime;
+	int __unused3;
+	unsigned long msg_cbytes;
+	msgqnum_t msg_qnum;
+	msglen_t msg_qbytes;
+	pid_t msg_lspid;
+	pid_t msg_lrpid;
+	unsigned long __unused[2];
+};
--- /dev/null
+++ b/arch/generic/bits/sem.h
@@ -0,0 +1,16 @@
+struct semid_ds {
+	struct ipc_perm sem_perm;
+	time_t sem_otime;
+	time_t __unused1;
+	time_t sem_ctime;
+	time_t __unused2;
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+	unsigned short sem_nsems;
+	char __sem_nsems_pad[sizeof(time_t)-sizeof(short)];
+#else
+	char __sem_nsems_pad[sizeof(time_t)-sizeof(short)];
+	unsigned short sem_nsems;
+#endif
+	time_t __unused3;
+	time_t __unused4;
+};
--- /dev/null
+++ b/arch/generic/bits/shm.h
@@ -0,0 +1,29 @@
+#define SHMLBA 4096
+
+struct shmid_ds
+{
+	struct ipc_perm shm_perm;
+	size_t shm_segsz;
+	time_t shm_atime;
+	int __unused1;
+	time_t shm_dtime;
+	int __unused2;
+	time_t shm_ctime;
+	int __unused3;
+	pid_t shm_cpid;
+	pid_t shm_lpid;
+	unsigned long shm_nattch;
+	unsigned long __pad1;
+	unsigned long __pad2;
+};
+
+struct shminfo {
+	unsigned long shmmax, shmmin, shmmni, shmseg, shmall, __unused[4];
+};
+
+struct shm_info {
+	int __used_ids;
+	unsigned long shm_tot, shm_rss, shm_swp;
+	unsigned long __swap_attempts, __swap_successes;
+};
+
--- /dev/null
+++ b/arch/generic/bits/socket.h
@@ -0,0 +1,17 @@
+struct msghdr
+{
+	void *msg_name;
+	socklen_t msg_namelen;
+	struct iovec *msg_iov;
+	int msg_iovlen;
+	void *msg_control;
+	socklen_t msg_controllen;
+	int msg_flags;
+};
+
+struct cmsghdr
+{
+	socklen_t cmsg_len;
+	int cmsg_level;
+	int cmsg_type;
+};
--- /dev/null
+++ b/arch/generic/bits/statfs.h
@@ -0,0 +1,7 @@
+struct statfs {
+	unsigned long f_type, f_bsize;
+	fsblkcnt_t f_blocks, f_bfree, f_bavail;
+	fsfilcnt_t f_files, f_ffree;
+	fsid_t f_fsid;
+	unsigned long f_namelen, f_frsize, f_flags, f_spare[4];
+};
--- /dev/null
+++ b/arch/generic/bits/stdarg.h
@@ -0,0 +1,4 @@
+#define va_start(v,l)   __builtin_va_start(v,l)
+#define va_end(v)       __builtin_va_end(v)
+#define va_arg(v,l)     __builtin_va_arg(v,l)
+#define va_copy(d,s)    __builtin_va_copy(d,s)
--- /dev/null
+++ b/arch/generic/bits/termios.h
@@ -0,0 +1,160 @@
+struct termios
+{
+	tcflag_t c_iflag;
+	tcflag_t c_oflag;
+	tcflag_t c_cflag;
+	tcflag_t c_lflag;
+	cc_t c_line;
+	cc_t c_cc[NCCS];
+	speed_t __c_ispeed;
+	speed_t __c_ospeed;
+};
+
+#define VINTR     0
+#define VQUIT     1
+#define VERASE    2
+#define VKILL     3
+#define VEOF      4
+#define VTIME     5
+#define VMIN      6
+#define VSWTC     7
+#define VSTART    8
+#define VSTOP     9
+#define VSUSP    10
+#define VEOL     11
+#define VREPRINT 12
+#define VDISCARD 13
+#define VWERASE  14
+#define VLNEXT   15
+#define VEOL2    16
+
+#define IGNBRK  0000001
+#define BRKINT  0000002
+#define IGNPAR  0000004
+#define PARMRK  0000010
+#define INPCK   0000020
+#define ISTRIP  0000040
+#define INLCR   0000100
+#define IGNCR   0000200
+#define ICRNL   0000400
+#define IUCLC   0001000
+#define IXON    0002000
+#define IXANY   0004000
+#define IXOFF   0010000
+#define IMAXBEL 0020000
+#define IUTF8   0040000
+
+#define OPOST  0000001
+#define OLCUC  0000002
+#define ONLCR  0000004
+#define OCRNL  0000010
+#define ONOCR  0000020
+#define ONLRET 0000040
+#define OFILL  0000100
+#define OFDEL  0000200
+#define NLDLY  0000400
+#define NL0    0000000
+#define NL1    0000400
+#define CRDLY  0003000
+#define CR0    0000000
+#define CR1    0001000
+#define CR2    0002000
+#define CR3    0003000
+#define TABDLY 0014000
+#define TAB0   0000000
+#define TAB1   0004000
+#define TAB2   0010000
+#define TAB3   0014000
+#define BSDLY  0020000
+#define BS0    0000000
+#define BS1    0020000
+#define FFDLY  0100000
+#define FF0    0000000
+#define FF1    0100000
+
+#define VTDLY  0040000
+#define VT0    0000000
+#define VT1    0040000
+
+#define B0       0000000
+#define B50      0000001
+#define B75      0000002
+#define B110     0000003
+#define B134     0000004
+#define B150     0000005
+#define B200     0000006
+#define B300     0000007
+#define B600     0000010
+#define B1200    0000011
+#define B1800    0000012
+#define B2400    0000013
+#define B4800    0000014
+#define B9600    0000015
+#define B19200   0000016
+#define B38400   0000017
+
+#define B57600   0010001
+#define B115200  0010002
+#define B230400  0010003
+#define B460800  0010004
+#define B500000  0010005
+#define B576000  0010006
+#define B921600  0010007
+#define B1000000 0010010
+#define B1152000 0010011
+#define B1500000 0010012
+#define B2000000 0010013
+#define B2500000 0010014
+#define B3000000 0010015
+#define B3500000 0010016
+#define B4000000 0010017
+
+#define CBAUD    0010017
+
+#define CSIZE  0000060
+#define CS5    0000000
+#define CS6    0000020
+#define CS7    0000040
+#define CS8    0000060
+#define CSTOPB 0000100
+#define CREAD  0000200
+#define PARENB 0000400
+#define PARODD 0001000
+#define HUPCL  0002000
+#define CLOCAL 0004000
+
+#define ISIG   0000001
+#define ICANON 0000002
+#define ECHO   0000010
+#define ECHOE  0000020
+#define ECHOK  0000040
+#define ECHONL 0000100
+#define NOFLSH 0000200
+#define TOSTOP 0000400
+#define IEXTEN 0100000
+
+#define ECHOCTL 0001000
+#define ECHOPRT 0002000
+#define ECHOKE 0004000
+#define FLUSHO 0010000
+#define PENDIN 0040000
+
+#define TCOOFF 0
+#define TCOON  1
+#define TCIOFF 2
+#define TCION  3
+
+#define TCIFLUSH  0
+#define TCOFLUSH  1
+#define TCIOFLUSH 2
+
+#define TCSANOW   0
+#define TCSADRAIN 1
+#define TCSAFLUSH 2
+
+#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+#define CBAUDEX 0010000
+#define CRTSCTS  020000000000
+#define EXTPROC 0200000
+#define XTABS  0014000
+#endif
--- a/arch/i386/atomic.h
+++ /dev/null
@@ -1,110 +0,0 @@
-#ifndef _INTERNAL_ATOMIC_H
-#define _INTERNAL_ATOMIC_H
-
-#include <stdint.h>
-
-static inline int a_ctz_64(uint64_t x)
-{
-	int r;
-	__asm__( "bsf %1,%0 ; jnz 1f ; bsf %2,%0 ; addl $32,%0\n1:"
-		: "=&r"(r) : "r"((unsigned)x), "r"((unsigned)(x>>32)) );
-	return r;
-}
-
-static inline int a_ctz_l(unsigned long x)
-{
-	long r;
-	__asm__( "bsf %1,%0" : "=r"(r) : "r"(x) );
-	return r;
-}
-
-static inline void a_and_64(volatile uint64_t *p, uint64_t v)
-{
-	__asm__( "lock ; andl %1, (%0) ; lock ; andl %2, 4(%0)"
-		: : "r"((long *)p), "r"((unsigned)v), "r"((unsigned)(v>>32)) : "memory" );
-}
-
-static inline void a_or_64(volatile uint64_t *p, uint64_t v)
-{
-	__asm__( "lock ; orl %1, (%0) ; lock ; orl %2, 4(%0)"
-		: : "r"((long *)p), "r"((unsigned)v), "r"((unsigned)(v>>32)) : "memory" );
-}
-
-static inline void a_or_l(volatile void *p, long v)
-{
-	__asm__( "lock ; orl %1, %0"
-		: "=m"(*(long *)p) : "r"(v) : "memory" );
-}
-
-static inline void *a_cas_p(volatile void *p, void *t, void *s)
-{
-	__asm__( "lock ; cmpxchg %3, %1"
-		: "=a"(t), "=m"(*(long *)p) : "a"(t), "r"(s) : "memory" );
-	return t;
-}
-
-static inline int a_cas(volatile int *p, int t, int s)
-{
-	__asm__( "lock ; cmpxchg %3, %1"
-		: "=a"(t), "=m"(*p) : "a"(t), "r"(s) : "memory" );
-	return t;
-}
-
-static inline void a_or(volatile int *p, int v)
-{
-	__asm__( "lock ; orl %1, %0"
-		: "=m"(*p) : "r"(v) : "memory" );
-}
-
-static inline void a_and(volatile int *p, int v)
-{
-	__asm__( "lock ; andl %1, %0"
-		: "=m"(*p) : "r"(v) : "memory" );
-}
-
-static inline int a_swap(volatile int *x, int v)
-{
-	__asm__( "xchg %0, %1" : "=r"(v), "=m"(*x) : "0"(v) : "memory" );
-	return v;
-}
-
-#define a_xchg a_swap
-
-static inline int a_fetch_add(volatile int *x, int v)
-{
-	__asm__( "lock ; xadd %0, %1" : "=r"(v), "=m"(*x) : "0"(v) : "memory" );
-	return v;
-}
-
-static inline void a_inc(volatile int *x)
-{
-	__asm__( "lock ; incl %0" : "=m"(*x) : "m"(*x) : "memory" );
-}
-
-static inline void a_dec(volatile int *x)
-{
-	__asm__( "lock ; decl %0" : "=m"(*x) : "m"(*x) : "memory" );
-}
-
-static inline void a_store(volatile int *p, int x)
-{
-	__asm__( "movl %1, %0 ; lock ; orl $0,(%%esp)" : "=m"(*p) : "r"(x) : "memory" );
-}
-
-static inline void a_spin()
-{
-	__asm__ __volatile__( "pause" : : : "memory" );
-}
-
-static inline void a_barrier()
-{
-	__asm__ __volatile__( "" : : : "memory" );
-}
-
-static inline void a_crash()
-{
-	__asm__ __volatile__( "hlt" : : : "memory" );
-}
-
-
-#endif
--- /dev/null
+++ b/arch/i386/atomic_arch.h
@@ -0,0 +1,101 @@
+#define a_cas a_cas
+static inline int a_cas(volatile int *p, int t, int s)
+{
+	__asm__ __volatile__ (
+		"lock ; cmpxchg %3, %1"
+		: "=a"(t), "=m"(*p) : "a"(t), "r"(s) : "memory" );
+	return t;
+}
+
+#define a_swap a_swap
+static inline int a_swap(volatile int *p, int v)
+{
+	__asm__ __volatile__(
+		"xchg %0, %1"
+		: "=r"(v), "=m"(*p) : "0"(v) : "memory" );
+	return v;
+}
+
+#define a_fetch_add a_fetch_add
+static inline int a_fetch_add(volatile int *p, int v)
+{
+	__asm__ __volatile__(
+		"lock ; xadd %0, %1"
+		: "=r"(v), "=m"(*p) : "0"(v) : "memory" );
+	return v;
+}
+
+#define a_and a_and
+static inline void a_and(volatile int *p, int v)
+{
+	__asm__ __volatile__(
+		"lock ; and %1, %0"
+		: "=m"(*p) : "r"(v) : "memory" );
+}
+
+#define a_or a_or
+static inline void a_or(volatile int *p, int v)
+{
+	__asm__ __volatile__(
+		"lock ; or %1, %0"
+		: "=m"(*p) : "r"(v) : "memory" );
+}
+
+#define a_inc a_inc
+static inline void a_inc(volatile int *p)
+{
+	__asm__ __volatile__(
+		"lock ; incl %0"
+		: "=m"(*p) : "m"(*p) : "memory" );
+}
+
+#define a_dec a_dec
+static inline void a_dec(volatile int *p)
+{
+	__asm__ __volatile__(
+		"lock ; decl %0"
+		: "=m"(*p) : "m"(*p) : "memory" );
+}
+
+#define a_store a_store
+static inline void a_store(volatile int *p, int x)
+{
+	__asm__ __volatile__(
+		"mov %1, %0 ; lock ; orl $0,(%%esp)"
+		: "=m"(*p) : "r"(x) : "memory" );
+}
+
+#define a_barrier a_barrier
+static inline void a_barrier()
+{
+	__asm__ __volatile__( "" : : : "memory" );
+}
+
+#define a_pause a_pause
+static inline void a_spin()
+{
+	__asm__ __volatile__( "pause" : : : "memory" );
+}
+
+#define a_crash a_crash
+static inline void a_crash()
+{
+	__asm__ __volatile__( "hlt" : : : "memory" );
+}
+
+#define a_ctz_64 a_ctz_64
+static inline int a_ctz_64(uint64_t x)
+{
+	int r;
+	__asm__( "bsf %1,%0 ; jnz 1f ; bsf %2,%0 ; add $32,%0\n1:"
+		: "=&r"(r) : "r"((unsigned)x), "r"((unsigned)(x>>32)) );
+	return r;
+}
+
+#define a_ctz_l a_ctz_l
+static inline int a_ctz_l(unsigned long x)
+{
+	long r;
+	__asm__( "bsf %1,%0" : "=r"(r) : "r"(x) );
+	return r;
+}
--- a/arch/i386/bits/alltypes.h.in
+++ b/arch/i386/bits/alltypes.h.in
@@ -26,10 +26,12 @@ TYPEDEF long double float_t;
 TYPEDEF long double double_t;
 #endif
 
-#ifdef __cplusplus
-TYPEDEF struct { alignas(8) long long __ll; long double __ld; } max_align_t;
-#else
+#if !defined(__cplusplus)
 TYPEDEF struct { _Alignas(8) long long __ll; long double __ld; } max_align_t;
+#elif defined(__GNUC__)
+TYPEDEF struct { __attribute__((__aligned__(8))) long long __ll; long double __ld; } max_align_t;
+#else
+TYPEDEF struct { alignas(8) long long __ll; long double __ld; } max_align_t;
 #endif
 
 TYPEDEF long time_t;
--- a/arch/i386/bits/errno.h
+++ /dev/null
@@ -1,134 +0,0 @@
-#define EPERM            1
-#define ENOENT           2
-#define ESRCH            3
-#define EINTR            4
-#define EIO              5
-#define ENXIO            6
-#define E2BIG            7
-#define ENOEXEC          8
-#define EBADF            9
-#define ECHILD          10
-#define EAGAIN          11
-#define ENOMEM          12
-#define EACCES          13
-#define EFAULT          14
-#define ENOTBLK         15
-#define EBUSY           16
-#define EEXIST          17
-#define EXDEV           18
-#define ENODEV          19
-#define ENOTDIR         20
-#define EISDIR          21
-#define EINVAL          22
-#define ENFILE          23
-#define EMFILE          24
-#define ENOTTY          25
-#define ETXTBSY         26
-#define EFBIG           27
-#define ENOSPC          28
-#define ESPIPE          29
-#define EROFS           30
-#define EMLINK          31
-#define EPIPE           32
-#define EDOM            33
-#define ERANGE          34
-#define EDEADLK         35
-#define ENAMETOOLONG    36
-#define ENOLCK          37
-#define ENOSYS          38
-#define ENOTEMPTY       39
-#define ELOOP           40
-#define EWOULDBLOCK     EAGAIN
-#define ENOMSG          42
-#define EIDRM           43
-#define ECHRNG          44
-#define EL2NSYNC        45
-#define EL3HLT          46
-#define EL3RST          47
-#define ELNRNG          48
-#define EUNATCH         49
-#define ENOCSI          50
-#define EL2HLT          51
-#define EBADE           52
-#define EBADR           53
-#define EXFULL          54
-#define ENOANO          55
-#define EBADRQC         56
-#define EBADSLT         57
-#define EDEADLOCK       EDEADLK
-#define EBFONT          59
-#define ENOSTR          60
-#define ENODATA         61
-#define ETIME           62
-#define ENOSR           63
-#define ENONET          64
-#define ENOPKG          65
-#define EREMOTE         66
-#define ENOLINK         67
-#define EADV            68
-#define ESRMNT          69
-#define ECOMM           70
-#define EPROTO          71
-#define EMULTIHOP       72
-#define EDOTDOT         73
-#define EBADMSG         74
-#define EOVERFLOW       75
-#define ENOTUNIQ        76
-#define EBADFD          77
-#define EREMCHG         78
-#define ELIBACC         79
-#define ELIBBAD         80
-#define ELIBSCN         81
-#define ELIBMAX         82
-#define ELIBEXEC        83
-#define EILSEQ          84
-#define ERESTART        85
-#define ESTRPIPE        86
-#define EUSERS          87
-#define ENOTSOCK        88
-#define EDESTADDRREQ    89
-#define EMSGSIZE        90
-#define EPROTOTYPE      91
-#define ENOPROTOOPT     92
-#define EPROTONOSUPPORT 93
-#define ESOCKTNOSUPPORT 94
-#define EOPNOTSUPP      95
-#define ENOTSUP         EOPNOTSUPP
-#define EPFNOSUPPORT    96
-#define EAFNOSUPPORT    97
-#define EADDRINUSE      98
-#define EADDRNOTAVAIL   99
-#define ENETDOWN        100
-#define ENETUNREACH     101
-#define ENETRESET       102
-#define ECONNABORTED    103
-#define ECONNRESET      104
-#define ENOBUFS         105
-#define EISCONN         106
-#define ENOTCONN        107
-#define ESHUTDOWN       108
-#define ETOOMANYREFS    109
-#define ETIMEDOUT       110
-#define ECONNREFUSED    111
-#define EHOSTDOWN       112
-#define EHOSTUNREACH    113
-#define EALREADY        114
-#define EINPROGRESS     115
-#define ESTALE          116
-#define EUCLEAN         117
-#define ENOTNAM         118
-#define ENAVAIL         119
-#define EISNAM          120
-#define EREMOTEIO       121
-#define EDQUOT          122
-#define ENOMEDIUM       123
-#define EMEDIUMTYPE     124
-#define ECANCELED       125
-#define ENOKEY          126
-#define EKEYEXPIRED     127
-#define EKEYREVOKED     128
-#define EKEYREJECTED    129
-#define EOWNERDEAD      130
-#define ENOTRECOVERABLE 131
-#define ERFKILL         132
-#define EHWPOISON       133
--- a/arch/i386/bits/fcntl.h
+++ /dev/null
@@ -1,40 +0,0 @@
-#define O_CREAT        0100
-#define O_EXCL         0200
-#define O_NOCTTY       0400
-#define O_TRUNC       01000
-#define O_APPEND      02000
-#define O_NONBLOCK    04000
-#define O_DSYNC      010000
-#define O_SYNC     04010000
-#define O_RSYNC    04010000
-#define O_DIRECTORY 0200000
-#define O_NOFOLLOW  0400000
-#define O_CLOEXEC  02000000
-
-#define O_ASYNC      020000
-#define O_DIRECT     040000
-#define O_LARGEFILE 0100000
-#define O_NOATIME  01000000
-#define O_PATH    010000000
-#define O_TMPFILE 020200000
-#define O_NDELAY O_NONBLOCK
-
-#define F_DUPFD  0
-#define F_GETFD  1
-#define F_SETFD  2
-#define F_GETFL  3
-#define F_SETFL  4
-
-#define F_SETOWN 8
-#define F_GETOWN 9
-#define F_SETSIG 10
-#define F_GETSIG 11
-
-#define F_GETLK 12
-#define F_SETLK 13
-#define F_SETLKW 14
-
-#define F_SETOWN_EX 15
-#define F_GETOWN_EX 16
-
-#define F_GETOWNER_UIDS 17
--- a/arch/i386/bits/ioctl.h
+++ /dev/null
@@ -1,197 +0,0 @@
-#define _IOC(a,b,c,d) ( ((a)<<30) | ((b)<<8) | (c) | ((d)<<16) )
-#define _IOC_NONE  0U
-#define _IOC_WRITE 1U
-#define _IOC_READ  2U
-
-#define _IO(a,b) _IOC(_IOC_NONE,(a),(b),0)
-#define _IOW(a,b,c) _IOC(_IOC_WRITE,(a),(b),sizeof(c))
-#define _IOR(a,b,c) _IOC(_IOC_READ,(a),(b),sizeof(c))
-#define _IOWR(a,b,c) _IOC(_IOC_READ|_IOC_WRITE,(a),(b),sizeof(c))
-
-#define TCGETS		0x5401
-#define TCSETS		0x5402
-#define TCSETSW		0x5403
-#define TCSETSF		0x5404
-#define TCGETA		0x5405
-#define TCSETA		0x5406
-#define TCSETAW		0x5407
-#define TCSETAF		0x5408
-#define TCSBRK		0x5409
-#define TCXONC		0x540A
-#define TCFLSH		0x540B
-#define TIOCEXCL	0x540C
-#define TIOCNXCL	0x540D
-#define TIOCSCTTY	0x540E
-#define TIOCGPGRP	0x540F
-#define TIOCSPGRP	0x5410
-#define TIOCOUTQ	0x5411
-#define TIOCSTI		0x5412
-#define TIOCGWINSZ	0x5413
-#define TIOCSWINSZ	0x5414
-#define TIOCMGET	0x5415
-#define TIOCMBIS	0x5416
-#define TIOCMBIC	0x5417
-#define TIOCMSET	0x5418
-#define TIOCGSOFTCAR	0x5419
-#define TIOCSSOFTCAR	0x541A
-#define FIONREAD	0x541B
-#define TIOCINQ		FIONREAD
-#define TIOCLINUX	0x541C
-#define TIOCCONS	0x541D
-#define TIOCGSERIAL	0x541E
-#define TIOCSSERIAL	0x541F
-#define TIOCPKT		0x5420
-#define FIONBIO		0x5421
-#define TIOCNOTTY	0x5422
-#define TIOCSETD	0x5423
-#define TIOCGETD	0x5424
-#define TCSBRKP		0x5425
-#define TIOCTTYGSTRUCT	0x5426
-#define TIOCSBRK	0x5427
-#define TIOCCBRK	0x5428
-#define TIOCGSID	0x5429
-#define TIOCGPTN	0x80045430
-#define TIOCSPTLCK	0x40045431
-#define TCGETX		0x5432
-#define TCSETX		0x5433
-#define TCSETXF		0x5434
-#define TCSETXW		0x5435
-
-#define FIONCLEX	0x5450
-#define FIOCLEX		0x5451
-#define FIOASYNC	0x5452
-#define TIOCSERCONFIG	0x5453
-#define TIOCSERGWILD	0x5454
-#define TIOCSERSWILD	0x5455
-#define TIOCGLCKTRMIOS	0x5456
-#define TIOCSLCKTRMIOS	0x5457
-#define TIOCSERGSTRUCT	0x5458
-#define TIOCSERGETLSR   0x5459
-#define TIOCSERGETMULTI 0x545A
-#define TIOCSERSETMULTI 0x545B
-
-#define TIOCMIWAIT	0x545C
-#define TIOCGICOUNT	0x545D
-#define TIOCGHAYESESP   0x545E
-#define TIOCSHAYESESP   0x545F
-#define FIOQSIZE	0x5460
-
-#define TIOCPKT_DATA		 0
-#define TIOCPKT_FLUSHREAD	 1
-#define TIOCPKT_FLUSHWRITE	 2
-#define TIOCPKT_STOP		 4
-#define TIOCPKT_START		 8
-#define TIOCPKT_NOSTOP		16
-#define TIOCPKT_DOSTOP		32
-#define TIOCPKT_IOCTL		64
-
-#define TIOCSER_TEMT    0x01
-
-struct winsize {
-	unsigned short ws_row;
-	unsigned short ws_col;
-	unsigned short ws_xpixel;
-	unsigned short ws_ypixel;
-};
-
-#define TIOCM_LE        0x001
-#define TIOCM_DTR       0x002
-#define TIOCM_RTS       0x004
-#define TIOCM_ST        0x008
-#define TIOCM_SR        0x010
-#define TIOCM_CTS       0x020
-#define TIOCM_CAR       0x040
-#define TIOCM_RNG       0x080
-#define TIOCM_DSR       0x100
-#define TIOCM_CD        TIOCM_CAR
-#define TIOCM_RI        TIOCM_RNG
-#define TIOCM_OUT1      0x2000
-#define TIOCM_OUT2      0x4000
-#define TIOCM_LOOP      0x8000
-#define TIOCM_MODEM_BITS TIOCM_OUT2
-
-#define N_TTY           0
-#define N_SLIP          1
-#define N_MOUSE         2
-#define N_PPP           3
-#define N_STRIP         4
-#define N_AX25          5
-#define N_X25           6
-#define N_6PACK         7
-#define N_MASC          8
-#define N_R3964         9
-#define N_PROFIBUS_FDL  10
-#define N_IRDA          11
-#define N_SMSBLOCK      12
-#define N_HDLC          13
-#define N_SYNC_PPP      14
-#define N_HCI           15
-
-#define FIOSETOWN       0x8901
-#define SIOCSPGRP       0x8902
-#define FIOGETOWN       0x8903
-#define SIOCGPGRP       0x8904
-#define SIOCATMARK      0x8905
-#define SIOCGSTAMP      0x8906
-
-#define SIOCADDRT       0x890B
-#define SIOCDELRT       0x890C
-#define SIOCRTMSG       0x890D
-
-#define SIOCGIFNAME     0x8910
-#define SIOCSIFLINK     0x8911
-#define SIOCGIFCONF     0x8912
-#define SIOCGIFFLAGS    0x8913
-#define SIOCSIFFLAGS    0x8914
-#define SIOCGIFADDR     0x8915
-#define SIOCSIFADDR     0x8916
-#define SIOCGIFDSTADDR  0x8917
-#define SIOCSIFDSTADDR  0x8918
-#define SIOCGIFBRDADDR  0x8919
-#define SIOCSIFBRDADDR  0x891a
-#define SIOCGIFNETMASK  0x891b
-#define SIOCSIFNETMASK  0x891c
-#define SIOCGIFMETRIC   0x891d
-#define SIOCSIFMETRIC   0x891e
-#define SIOCGIFMEM      0x891f
-#define SIOCSIFMEM      0x8920
-#define SIOCGIFMTU      0x8921
-#define SIOCSIFMTU      0x8922
-#define SIOCSIFHWADDR   0x8924
-#define SIOCGIFENCAP    0x8925
-#define SIOCSIFENCAP    0x8926
-#define SIOCGIFHWADDR   0x8927
-#define SIOCGIFSLAVE    0x8929
-#define SIOCSIFSLAVE    0x8930
-#define SIOCADDMULTI    0x8931
-#define SIOCDELMULTI    0x8932
-#define SIOCGIFINDEX    0x8933
-#define SIOGIFINDEX     SIOCGIFINDEX
-#define SIOCSIFPFLAGS   0x8934
-#define SIOCGIFPFLAGS   0x8935
-#define SIOCDIFADDR     0x8936
-#define SIOCSIFHWBROADCAST 0x8937
-#define SIOCGIFCOUNT    0x8938
-
-#define SIOCGIFBR       0x8940
-#define SIOCSIFBR       0x8941
-
-#define SIOCGIFTXQLEN   0x8942
-#define SIOCSIFTXQLEN   0x8943
-
-#define SIOCDARP        0x8953
-#define SIOCGARP        0x8954
-#define SIOCSARP        0x8955
-
-#define SIOCDRARP       0x8960
-#define SIOCGRARP       0x8961
-#define SIOCSRARP       0x8962
-
-#define SIOCGIFMAP      0x8970
-#define SIOCSIFMAP      0x8971
-
-#define SIOCADDDLCI     0x8980
-#define SIOCDELDLCI     0x8981
-
-#define SIOCDEVPRIVATE		0x89F0
-#define SIOCPROTOPRIVATE	0x89E0
--- a/arch/i386/bits/ipc.h
+++ /dev/null
@@ -1,14 +0,0 @@
-struct ipc_perm
-{
-	key_t __ipc_perm_key;
-	uid_t uid;
-	gid_t gid;
-	uid_t cuid;
-	gid_t cgid;
-	mode_t mode;
-	int __ipc_perm_seq;
-	long __pad1;
-	long __pad2;
-};
-
-#define IPC_64 0x100
--- a/arch/i386/bits/mman.h
+++ b/arch/i386/bits/mman.h
@@ -38,6 +38,7 @@
 
 #define MCL_CURRENT     1
 #define MCL_FUTURE      2
+#define MCL_ONFAULT     4
 
 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
 #define MADV_NORMAL      0
--- a/arch/i386/bits/msg.h
+++ /dev/null
@@ -1,16 +0,0 @@
-struct msqid_ds
-{
-	struct ipc_perm msg_perm;
-	time_t msg_stime;
-	int __unused1;
-	time_t msg_rtime;
-	int __unused2;
-	time_t msg_ctime;
-	int __unused3;
-	unsigned long msg_cbytes;
-	msgqnum_t msg_qnum;
-	msglen_t msg_qbytes;
-	pid_t msg_lspid;
-	pid_t msg_lrpid;
-	unsigned long __unused[2];
-};
--- a/arch/i386/bits/sem.h
+++ /dev/null
@@ -1,16 +0,0 @@
-struct semid_ds {
-	struct ipc_perm sem_perm;
-	time_t sem_otime;
-	time_t __unused1;
-	time_t sem_ctime;
-	time_t __unused2;
-#if __BYTE_ORDER == __LITTLE_ENDIAN
-	unsigned short sem_nsems;
-	char __sem_nsems_pad[sizeof(time_t)-sizeof(short)];
-#else
-	char __sem_nsems_pad[sizeof(time_t)-sizeof(short)];
-	unsigned short sem_nsems;
-#endif
-	time_t __unused3;
-	time_t __unused4;
-};
--- a/arch/i386/bits/shm.h
+++ /dev/null
@@ -1,29 +0,0 @@
-#define SHMLBA 4096
-
-struct shmid_ds
-{
-	struct ipc_perm shm_perm;
-	size_t shm_segsz;
-	time_t shm_atime;
-	int __unused1;
-	time_t shm_dtime;
-	int __unused2;
-	time_t shm_ctime;
-	int __unused3;
-	pid_t shm_cpid;
-	pid_t shm_lpid;
-	unsigned long shm_nattch;
-	unsigned long __pad1;
-	unsigned long __pad2;
-};
-
-struct shminfo {
-	unsigned long shmmax, shmmin, shmmni, shmseg, shmall, __unused[4];
-};
-
-struct shm_info {
-	int __used_ids;
-	unsigned long shm_tot, shm_rss, shm_swp;
-	unsigned long __swap_attempts, __swap_successes;
-};
-
--- a/arch/i386/bits/socket.h
+++ /dev/null
@@ -1,17 +0,0 @@
-struct msghdr
-{
-	void *msg_name;
-	socklen_t msg_namelen;
-	struct iovec *msg_iov;
-	int msg_iovlen;
-	void *msg_control;
-	socklen_t msg_controllen;
-	int msg_flags;
-};
-
-struct cmsghdr
-{
-	socklen_t cmsg_len;
-	int cmsg_level;
-	int cmsg_type;
-};
--- a/arch/i386/bits/statfs.h
+++ /dev/null
@@ -1,7 +0,0 @@
-struct statfs {
-	unsigned long f_type, f_bsize;
-	fsblkcnt_t f_blocks, f_bfree, f_bavail;
-	fsfilcnt_t f_files, f_ffree;
-	fsid_t f_fsid;
-	unsigned long f_namelen, f_frsize, f_flags, f_spare[4];
-};
--- a/arch/i386/bits/syscall.h
+++ b/arch/i386/bits/syscall.h
@@ -357,6 +357,24 @@
 #define __NR_memfd_create	356
 #define __NR_bpf		357
 #define __NR_execveat		358
+#define __NR_socket		359
+#define __NR_socketpair		360
+#define __NR_bind		361
+#define __NR_connect		362
+#define __NR_listen		363
+#define __NR_accept4		364
+#define __NR_getsockopt		365
+#define __NR_setsockopt		366
+#define __NR_getsockname	367
+#define __NR_getpeername	368
+#define __NR_sendto		369
+#define __NR_sendmsg		370
+#define __NR_recvfrom		371
+#define __NR_recvmsg		372
+#define __NR_shutdown		373
+#define __NR_userfaultfd	374
+#define __NR_membarrier		375
+#define __NR_mlock2		376
 
 
 /* Repeated with SYS_ prefix */
@@ -720,3 +738,21 @@
 #define SYS_memfd_create	356
 #define SYS_bpf			357
 #define SYS_execveat		358
+#define SYS_socket		359
+#define SYS_socketpair		360
+#define SYS_bind		361
+#define SYS_connect		362
+#define SYS_listen		363
+#define SYS_accept4		364
+#define SYS_getsockopt		365
+#define SYS_setsockopt		366
+#define SYS_getsockname		367
+#define SYS_getpeername		368
+#define SYS_sendto		369
+#define SYS_sendmsg		370
+#define SYS_recvfrom		371
+#define SYS_recvmsg		372
+#define SYS_shutdown		373
+#define SYS_userfaultfd		374
+#define SYS_membarrier		375
+#define SYS_mlock2		376
--- a/arch/i386/bits/termios.h
+++ /dev/null
@@ -1,160 +0,0 @@
-struct termios
-{
-	tcflag_t c_iflag;
-	tcflag_t c_oflag;
-	tcflag_t c_cflag;
-	tcflag_t c_lflag;
-	cc_t c_line;
-	cc_t c_cc[NCCS];
-	speed_t __c_ispeed;
-	speed_t __c_ospeed;
-};
-
-#define VINTR     0
-#define VQUIT     1
-#define VERASE    2
-#define VKILL     3
-#define VEOF      4
-#define VTIME     5
-#define VMIN      6
-#define VSWTC     7
-#define VSTART    8
-#define VSTOP     9
-#define VSUSP    10
-#define VEOL     11
-#define VREPRINT 12
-#define VDISCARD 13
-#define VWERASE  14
-#define VLNEXT   15
-#define VEOL2    16
-
-#define IGNBRK  0000001
-#define BRKINT  0000002
-#define IGNPAR  0000004
-#define PARMRK  0000010
-#define INPCK   0000020
-#define ISTRIP  0000040
-#define INLCR   0000100
-#define IGNCR   0000200
-#define ICRNL   0000400
-#define IUCLC   0001000
-#define IXON    0002000
-#define IXANY   0004000
-#define IXOFF   0010000
-#define IMAXBEL 0020000
-#define IUTF8   0040000
-
-#define OPOST  0000001
-#define OLCUC  0000002
-#define ONLCR  0000004
-#define OCRNL  0000010
-#define ONOCR  0000020
-#define ONLRET 0000040
-#define OFILL  0000100
-#define OFDEL  0000200
-#define NLDLY  0000400
-#define NL0    0000000
-#define NL1    0000400
-#define CRDLY  0003000
-#define CR0    0000000
-#define CR1    0001000
-#define CR2    0002000
-#define CR3    0003000
-#define TABDLY 0014000
-#define TAB0   0000000
-#define TAB1   0004000
-#define TAB2   0010000
-#define TAB3   0014000
-#define BSDLY  0020000
-#define BS0    0000000
-#define BS1    0020000
-#define FFDLY  0100000
-#define FF0    0000000
-#define FF1    0100000
-
-#define VTDLY  0040000
-#define VT0    0000000
-#define VT1    0040000
-
-#define B0       0000000
-#define B50      0000001
-#define B75      0000002
-#define B110     0000003
-#define B134     0000004
-#define B150     0000005
-#define B200     0000006
-#define B300     0000007
-#define B600     0000010
-#define B1200    0000011
-#define B1800    0000012
-#define B2400    0000013
-#define B4800    0000014
-#define B9600    0000015
-#define B19200   0000016
-#define B38400   0000017
-
-#define B57600   0010001
-#define B115200  0010002
-#define B230400  0010003
-#define B460800  0010004
-#define B500000  0010005
-#define B576000  0010006
-#define B921600  0010007
-#define B1000000 0010010
-#define B1152000 0010011
-#define B1500000 0010012
-#define B2000000 0010013
-#define B2500000 0010014
-#define B3000000 0010015
-#define B3500000 0010016
-#define B4000000 0010017
-
-#define CBAUD    0010017
-
-#define CSIZE  0000060
-#define CS5    0000000
-#define CS6    0000020
-#define CS7    0000040
-#define CS8    0000060
-#define CSTOPB 0000100
-#define CREAD  0000200
-#define PARENB 0000400
-#define PARODD 0001000
-#define HUPCL  0002000
-#define CLOCAL 0004000
-
-#define ISIG   0000001
-#define ICANON 0000002
-#define ECHO   0000010
-#define ECHOE  0000020
-#define ECHOK  0000040
-#define ECHONL 0000100
-#define NOFLSH 0000200
-#define TOSTOP 0000400
-#define IEXTEN 0100000
-
-#define ECHOCTL 0001000
-#define ECHOPRT 0002000
-#define ECHOKE 0004000
-#define FLUSHO 0010000
-#define PENDIN 0040000
-
-#define TCOOFF 0
-#define TCOON  1
-#define TCIOFF 2
-#define TCION  3
-
-#define TCIFLUSH  0
-#define TCOFLUSH  1
-#define TCIOFLUSH 2
-
-#define TCSANOW   0
-#define TCSADRAIN 1
-#define TCSAFLUSH 2
-
-#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
-#define CBAUDEX 0010000
-#define CRTSCTS  020000000000
-#define EXTPROC 0200000
-#define XTABS  0014000
-#endif
--- a/arch/i386/pthread_arch.h
+++ b/arch/i386/pthread_arch.h
@@ -7,4 +7,4 @@ static inline struct pthread *__pthread_
 
 #define TP_ADJ(p) (p)
 
-#define CANCEL_REG_IP 14
+#define MC_PC gregs[REG_EIP]
--- a/arch/i386/syscall_arch.h
+++ b/arch/i386/syscall_arch.h
@@ -55,3 +55,5 @@ static inline long __syscall6(long n, lo
 #define VDSO_USEFUL
 #define VDSO_CGT_SYM "__vdso_clock_gettime"
 #define VDSO_CGT_VER "LINUX_2.6"
+
+#define SYSCALL_USE_SOCKETCALL
--- a/arch/microblaze/atomic.h
+++ /dev/null
@@ -1,143 +0,0 @@
-#ifndef _INTERNAL_ATOMIC_H
-#define _INTERNAL_ATOMIC_H
-
-#include <stdint.h>
-
-static inline int a_ctz_l(unsigned long x)
-{
-	static const char debruijn32[32] = {
-		0, 1, 23, 2, 29, 24, 19, 3, 30, 27, 25, 11, 20, 8, 4, 13,
-		31, 22, 28, 18, 26, 10, 7, 12, 21, 17, 9, 6, 16, 5, 15, 14
-	};
-	return debruijn32[(x&-x)*0x076be629 >> 27];
-}
-
-static inline int a_ctz_64(uint64_t x)
-{
-	uint32_t y = x;
-	if (!y) {
-		y = x>>32;
-		return 32 + a_ctz_l(y);
-	}
-	return a_ctz_l(y);
-}
-
-static inline int a_cas(volatile int *p, int t, int s)
-{
-	register int old, tmp;
-	__asm__ __volatile__ (
-		"	addi %0, r0, 0\n"
-		"1:	lwx %0, %2, r0\n"
-		"	rsubk %1, %0, %3\n"
-		"	bnei %1, 1f\n"
-		"	swx %4, %2, r0\n"
-		"	addic %1, r0, 0\n"
-		"	bnei %1, 1b\n"
-		"1:	"
-		: "=&r"(old), "=&r"(tmp)
-		: "r"(p), "r"(t), "r"(s)
-		: "cc", "memory" );
-	return old;
-}
-
-static inline void *a_cas_p(volatile void *p, void *t, void *s)
-{
-	return (void *)a_cas(p, (int)t, (int)s);
-}
-
-static inline int a_swap(volatile int *x, int v)
-{
-	register int old, tmp;
-	__asm__ __volatile__ (
-		"	addi %0, r0, 0\n"
-		"1:	lwx %0, %2, r0\n"
-		"	swx %3, %2, r0\n"
-		"	addic %1, r0, 0\n"
-		"	bnei %1, 1b\n"
-		"1:	"
-		: "=&r"(old), "=&r"(tmp)
-		: "r"(x), "r"(v)
-		: "cc", "memory" );
-	return old;
-}
-
-static inline int a_fetch_add(volatile int *x, int v)
-{
-	register int new, tmp;
-	__asm__ __volatile__ (
-		"	addi %0, r0, 0\n"
-		"1:	lwx %0, %2, r0\n"
-		"	addk %0, %0, %3\n"
-		"	swx %0, %2, r0\n"
-		"	addic %1, r0, 0\n"
-		"	bnei %1, 1b\n"
-		"1:	"
-		: "=&r"(new), "=&r"(tmp)
-		: "r"(x), "r"(v)
-		: "cc", "memory" );
-	return new-v;
-}
-
-static inline void a_inc(volatile int *x)
-{
-	a_fetch_add(x, 1);
-}
-
-static inline void a_dec(volatile int *x)
-{
-	a_fetch_add(x, -1);
-}
-
-static inline void a_store(volatile int *p, int x)
-{
-	__asm__ __volatile__ (
-		"swi %1, %0"
-		: "=m"(*p) : "r"(x) : "memory" );
-}
-
-#define a_spin a_barrier
-
-static inline void a_barrier()
-{
-	a_cas(&(int){0}, 0, 0);
-}
-
-static inline void a_crash()
-{
-	*(volatile char *)0=0;
-}
-
-static inline void a_and(volatile int *p, int v)
-{
-	int old;
-	do old = *p;
-	while (a_cas(p, old, old&v) != old);
-}
-
-static inline void a_or(volatile int *p, int v)
-{
-	int old;
-	do old = *p;
-	while (a_cas(p, old, old|v) != old);
-}
-
-static inline void a_or_l(volatile void *p, long v)
-{
-	a_or(p, v);
-}
-
-static inline void a_and_64(volatile uint64_t *p, uint64_t v)
-{
-	union { uint64_t v; uint32_t r[2]; } u = { v };
-	a_and((int *)p, u.r[0]);
-	a_and((int *)p+1, u.r[1]);
-}
-
-static inline void a_or_64(volatile uint64_t *p, uint64_t v)
-{
-	union { uint64_t v; uint32_t r[2]; } u = { v };
-	a_or((int *)p, u.r[0]);
-	a_or((int *)p+1, u.r[1]);
-}
-
-#endif
--- /dev/null
+++ b/arch/microblaze/atomic_arch.h
@@ -0,0 +1,53 @@
+#define a_cas a_cas
+static inline int a_cas(volatile int *p, int t, int s)
+{
+	register int old, tmp;
+	__asm__ __volatile__ (
+		"	addi %0, r0, 0\n"
+		"1:	lwx %0, %2, r0\n"
+		"	rsubk %1, %0, %3\n"
+		"	bnei %1, 1f\n"
+		"	swx %4, %2, r0\n"
+		"	addic %1, r0, 0\n"
+		"	bnei %1, 1b\n"
+		"1:	"
+		: "=&r"(old), "=&r"(tmp)
+		: "r"(p), "r"(t), "r"(s)
+		: "cc", "memory" );
+	return old;
+}
+
+#define a_swap a_swap
+static inline int a_swap(volatile int *x, int v)
+{
+	register int old, tmp;
+	__asm__ __volatile__ (
+		"	addi %0, r0, 0\n"
+		"1:	lwx %0, %2, r0\n"
+		"	swx %3, %2, r0\n"
+		"	addic %1, r0, 0\n"
+		"	bnei %1, 1b\n"
+		"1:	"
+		: "=&r"(old), "=&r"(tmp)
+		: "r"(x), "r"(v)
+		: "cc", "memory" );
+	return old;
+}
+
+#define a_fetch_add a_fetch_add
+static inline int a_fetch_add(volatile int *x, int v)
+{
+	register int new, tmp;
+	__asm__ __volatile__ (
+		"	addi %0, r0, 0\n"
+		"1:	lwx %0, %2, r0\n"
+		"	addk %0, %0, %3\n"
+		"	swx %0, %2, r0\n"
+		"	addic %1, r0, 0\n"
+		"	bnei %1, 1b\n"
+		"1:	"
+		: "=&r"(new), "=&r"(tmp)
+		: "r"(x), "r"(v)
+		: "cc", "memory" );
+	return new-v;
+}
--- a/arch/microblaze/bits/errno.h
+++ /dev/null
@@ -1,134 +0,0 @@
-#define EPERM            1
-#define ENOENT           2
-#define ESRCH            3
-#define EINTR            4
-#define EIO              5
-#define ENXIO            6
-#define E2BIG            7
-#define ENOEXEC          8
-#define EBADF            9
-#define ECHILD          10
-#define EAGAIN          11
-#define ENOMEM          12
-#define EACCES          13
-#define EFAULT          14
-#define ENOTBLK         15
-#define EBUSY           16
-#define EEXIST          17
-#define EXDEV           18
-#define ENODEV          19
-#define ENOTDIR         20
-#define EISDIR          21
-#define EINVAL          22
-#define ENFILE          23
-#define EMFILE          24
-#define ENOTTY          25
-#define ETXTBSY         26
-#define EFBIG           27
-#define ENOSPC          28
-#define ESPIPE          29
-#define EROFS           30
-#define EMLINK          31
-#define EPIPE           32
-#define EDOM            33
-#define ERANGE          34
-#define EDEADLK         35
-#define ENAMETOOLONG    36
-#define ENOLCK          37
-#define ENOSYS          38
-#define ENOTEMPTY       39
-#define ELOOP           40
-#define EWOULDBLOCK     EAGAIN
-#define ENOMSG          42
-#define EIDRM           43
-#define ECHRNG          44
-#define EL2NSYNC        45
-#define EL3HLT          46
-#define EL3RST          47
-#define ELNRNG          48
-#define EUNATCH         49
-#define ENOCSI          50
-#define EL2HLT          51
-#define EBADE           52
-#define EBADR           53
-#define EXFULL          54
-#define ENOANO          55
-#define EBADRQC         56
-#define EBADSLT         57
-#define EDEADLOCK       EDEADLK
-#define EBFONT          59
-#define ENOSTR          60
-#define ENODATA         61
-#define ETIME           62
-#define ENOSR           63
-#define ENONET          64
-#define ENOPKG          65
-#define EREMOTE         66
-#define ENOLINK         67
-#define EADV            68
-#define ESRMNT          69
-#define ECOMM           70
-#define EPROTO          71
-#define EMULTIHOP       72
-#define EDOTDOT         73
-#define EBADMSG         74
-#define EOVERFLOW       75
-#define ENOTUNIQ        76
-#define EBADFD          77
-#define EREMCHG         78
-#define ELIBACC         79
-#define ELIBBAD         80
-#define ELIBSCN         81
-#define ELIBMAX         82
-#define ELIBEXEC        83
-#define EILSEQ          84
-#define ERESTART        85
-#define ESTRPIPE        86
-#define EUSERS          87
-#define ENOTSOCK        88
-#define EDESTADDRREQ    89
-#define EMSGSIZE        90
-#define EPROTOTYPE      91
-#define ENOPROTOOPT     92
-#define EPROTONOSUPPORT 93
-#define ESOCKTNOSUPPORT 94
-#define EOPNOTSUPP      95
-#define ENOTSUP         EOPNOTSUPP
-#define EPFNOSUPPORT    96
-#define EAFNOSUPPORT    97
-#define EADDRINUSE      98
-#define EADDRNOTAVAIL   99
-#define ENETDOWN        100
-#define ENETUNREACH     101
-#define ENETRESET       102
-#define ECONNABORTED    103
-#define ECONNRESET      104
-#define ENOBUFS         105
-#define EISCONN         106
-#define ENOTCONN        107
-#define ESHUTDOWN       108
-#define ETOOMANYREFS    109
-#define ETIMEDOUT       110
-#define ECONNREFUSED    111
-#define EHOSTDOWN       112
-#define EHOSTUNREACH    113
-#define EALREADY        114
-#define EINPROGRESS     115
-#define ESTALE          116
-#define EUCLEAN         117
-#define ENOTNAM         118
-#define ENAVAIL         119
-#define EISNAM          120
-#define EREMOTEIO       121
-#define EDQUOT          122
-#define ENOMEDIUM       123
-#define EMEDIUMTYPE     124
-#define ECANCELED       125
-#define ENOKEY          126
-#define EKEYEXPIRED     127
-#define EKEYREVOKED     128
-#define EKEYREJECTED    129
-#define EOWNERDEAD      130
-#define ENOTRECOVERABLE 131
-#define ERFKILL         132
-#define EHWPOISON       133
--- a/arch/microblaze/bits/fcntl.h
+++ /dev/null
@@ -1,40 +0,0 @@
-#define O_CREAT        0100
-#define O_EXCL         0200
-#define O_NOCTTY       0400
-#define O_TRUNC       01000
-#define O_APPEND      02000
-#define O_NONBLOCK    04000
-#define O_DSYNC      010000
-#define O_SYNC     04010000
-#define O_RSYNC    04010000
-#define O_DIRECTORY 0200000
-#define O_NOFOLLOW  0400000
-#define O_CLOEXEC  02000000
-
-#define O_ASYNC      020000
-#define O_DIRECT     040000
-#define O_LARGEFILE 0100000
-#define O_NOATIME  01000000
-#define O_PATH    010000000
-#define O_TMPFILE 020200000
-#define O_NDELAY O_NONBLOCK
-
-#define F_DUPFD  0
-#define F_GETFD  1
-#define F_SETFD  2
-#define F_GETFL  3
-#define F_SETFL  4
-
-#define F_SETOWN 8
-#define F_GETOWN 9
-#define F_SETSIG 10
-#define F_GETSIG 11
-
-#define F_GETLK 12
-#define F_SETLK 13
-#define F_SETLKW 14
-
-#define F_SETOWN_EX 15
-#define F_GETOWN_EX 16
-
-#define F_GETOWNER_UIDS 17
--- a/arch/microblaze/bits/fenv.h
+++ /dev/null
@@ -1,10 +0,0 @@
-#define FE_ALL_EXCEPT 0
-#define FE_TONEAREST  0
-
-typedef unsigned long fexcept_t;
-
-typedef struct {
-	unsigned long __cw;
-} fenv_t;
-
-#define FE_DFL_ENV      ((const fenv_t *) -1)
--- a/arch/microblaze/bits/ioctl.h
+++ /dev/null
@@ -1,197 +0,0 @@
-#define _IOC(a,b,c,d) ( ((a)<<30) | ((b)<<8) | (c) | ((d)<<16) )
-#define _IOC_NONE  0U
-#define _IOC_WRITE 1U
-#define _IOC_READ  2U
-
-#define _IO(a,b) _IOC(_IOC_NONE,(a),(b),0)
-#define _IOW(a,b,c) _IOC(_IOC_WRITE,(a),(b),sizeof(c))
-#define _IOR(a,b,c) _IOC(_IOC_READ,(a),(b),sizeof(c))
-#define _IOWR(a,b,c) _IOC(_IOC_READ|_IOC_WRITE,(a),(b),sizeof(c))
-
-#define TCGETS		0x5401
-#define TCSETS		0x5402
-#define TCSETSW		0x5403
-#define TCSETSF		0x5404
-#define TCGETA		0x5405
-#define TCSETA		0x5406
-#define TCSETAW		0x5407
-#define TCSETAF		0x5408
-#define TCSBRK		0x5409
-#define TCXONC		0x540A
-#define TCFLSH		0x540B
-#define TIOCEXCL	0x540C
-#define TIOCNXCL	0x540D
-#define TIOCSCTTY	0x540E
-#define TIOCGPGRP	0x540F
-#define TIOCSPGRP	0x5410
-#define TIOCOUTQ	0x5411
-#define TIOCSTI		0x5412
-#define TIOCGWINSZ	0x5413
-#define TIOCSWINSZ	0x5414
-#define TIOCMGET	0x5415
-#define TIOCMBIS	0x5416
-#define TIOCMBIC	0x5417
-#define TIOCMSET	0x5418
-#define TIOCGSOFTCAR	0x5419
-#define TIOCSSOFTCAR	0x541A
-#define FIONREAD	0x541B
-#define TIOCINQ		FIONREAD
-#define TIOCLINUX	0x541C
-#define TIOCCONS	0x541D
-#define TIOCGSERIAL	0x541E
-#define TIOCSSERIAL	0x541F
-#define TIOCPKT		0x5420
-#define FIONBIO		0x5421
-#define TIOCNOTTY	0x5422
-#define TIOCSETD	0x5423
-#define TIOCGETD	0x5424
-#define TCSBRKP		0x5425
-#define TIOCTTYGSTRUCT	0x5426
-#define TIOCSBRK	0x5427
-#define TIOCCBRK	0x5428
-#define TIOCGSID	0x5429
-#define TIOCGPTN	0x80045430
-#define TIOCSPTLCK	0x40045431
-#define TCGETX		0x5432
-#define TCSETX		0x5433
-#define TCSETXF		0x5434
-#define TCSETXW		0x5435
-
-#define FIONCLEX	0x5450
-#define FIOCLEX		0x5451
-#define FIOASYNC	0x5452
-#define TIOCSERCONFIG	0x5453
-#define TIOCSERGWILD	0x5454
-#define TIOCSERSWILD	0x5455
-#define TIOCGLCKTRMIOS	0x5456
-#define TIOCSLCKTRMIOS	0x5457
-#define TIOCSERGSTRUCT	0x5458
-#define TIOCSERGETLSR   0x5459
-#define TIOCSERGETMULTI 0x545A
-#define TIOCSERSETMULTI 0x545B
-
-#define TIOCMIWAIT	0x545C
-#define TIOCGICOUNT	0x545D
-#define TIOCGHAYESESP   0x545E
-#define TIOCSHAYESESP   0x545F
-#define FIOQSIZE	0x5460
-
-#define TIOCPKT_DATA		 0
-#define TIOCPKT_FLUSHREAD	 1
-#define TIOCPKT_FLUSHWRITE	 2
-#define TIOCPKT_STOP		 4
-#define TIOCPKT_START		 8
-#define TIOCPKT_NOSTOP		16
-#define TIOCPKT_DOSTOP		32
-#define TIOCPKT_IOCTL		64
-
-#define TIOCSER_TEMT    0x01
-
-struct winsize {
-	unsigned short ws_row;
-	unsigned short ws_col;
-	unsigned short ws_xpixel;
-	unsigned short ws_ypixel;
-};
-
-#define TIOCM_LE        0x001
-#define TIOCM_DTR       0x002
-#define TIOCM_RTS       0x004
-#define TIOCM_ST        0x008
-#define TIOCM_SR        0x010
-#define TIOCM_CTS       0x020
-#define TIOCM_CAR       0x040
-#define TIOCM_RNG       0x080
-#define TIOCM_DSR       0x100
-#define TIOCM_CD        TIOCM_CAR
-#define TIOCM_RI        TIOCM_RNG
-#define TIOCM_OUT1      0x2000
-#define TIOCM_OUT2      0x4000
-#define TIOCM_LOOP      0x8000
-#define TIOCM_MODEM_BITS TIOCM_OUT2
-
-#define N_TTY           0
-#define N_SLIP          1
-#define N_MOUSE         2
-#define N_PPP           3
-#define N_STRIP         4
-#define N_AX25          5
-#define N_X25           6
-#define N_6PACK         7
-#define N_MASC          8
-#define N_R3964         9
-#define N_PROFIBUS_FDL  10
-#define N_IRDA          11
-#define N_SMSBLOCK      12
-#define N_HDLC          13
-#define N_SYNC_PPP      14
-#define N_HCI           15
-
-#define FIOSETOWN       0x8901
-#define SIOCSPGRP       0x8902
-#define FIOGETOWN       0x8903
-#define SIOCGPGRP       0x8904
-#define SIOCATMARK      0x8905
-#define SIOCGSTAMP      0x8906
-
-#define SIOCADDRT       0x890B
-#define SIOCDELRT       0x890C
-#define SIOCRTMSG       0x890D
-
-#define SIOCGIFNAME     0x8910
-#define SIOCSIFLINK     0x8911
-#define SIOCGIFCONF     0x8912
-#define SIOCGIFFLAGS    0x8913
-#define SIOCSIFFLAGS    0x8914
-#define SIOCGIFADDR     0x8915
-#define SIOCSIFADDR     0x8916
-#define SIOCGIFDSTADDR  0x8917
-#define SIOCSIFDSTADDR  0x8918
-#define SIOCGIFBRDADDR  0x8919
-#define SIOCSIFBRDADDR  0x891a
-#define SIOCGIFNETMASK  0x891b
-#define SIOCSIFNETMASK  0x891c
-#define SIOCGIFMETRIC   0x891d
-#define SIOCSIFMETRIC   0x891e
-#define SIOCGIFMEM      0x891f
-#define SIOCSIFMEM      0x8920
-#define SIOCGIFMTU      0x8921
-#define SIOCSIFMTU      0x8922
-#define SIOCSIFHWADDR   0x8924
-#define SIOCGIFENCAP    0x8925
-#define SIOCSIFENCAP    0x8926
-#define SIOCGIFHWADDR   0x8927
-#define SIOCGIFSLAVE    0x8929
-#define SIOCSIFSLAVE    0x8930
-#define SIOCADDMULTI    0x8931
-#define SIOCDELMULTI    0x8932
-#define SIOCGIFINDEX    0x8933
-#define SIOGIFINDEX     SIOCGIFINDEX
-#define SIOCSIFPFLAGS   0x8934
-#define SIOCGIFPFLAGS   0x8935
-#define SIOCDIFADDR     0x8936
-#define SIOCSIFHWBROADCAST 0x8937
-#define SIOCGIFCOUNT    0x8938
-
-#define SIOCGIFBR       0x8940
-#define SIOCSIFBR       0x8941
-
-#define SIOCGIFTXQLEN   0x8942
-#define SIOCSIFTXQLEN   0x8943
-
-#define SIOCDARP        0x8953
-#define SIOCGARP        0x8954
-#define SIOCSARP        0x8955
-
-#define SIOCDRARP       0x8960
-#define SIOCGRARP       0x8961
-#define SIOCSRARP       0x8962
-
-#define SIOCGIFMAP      0x8970
-#define SIOCSIFMAP      0x8971
-
-#define SIOCADDDLCI     0x8980
-#define SIOCDELDLCI     0x8981
-
-#define SIOCDEVPRIVATE		0x89F0
-#define SIOCPROTOPRIVATE	0x89E0
--- a/arch/microblaze/bits/ipc.h
+++ /dev/null
@@ -1,14 +0,0 @@
-struct ipc_perm
-{
-	key_t __ipc_perm_key;
-	uid_t uid;
-	gid_t gid;
-	uid_t cuid;
-	gid_t cgid;
-	mode_t mode;
-	int __ipc_perm_seq;
-	long __pad1;
-	long __pad2;
-};
-
-#define IPC_64 0x100
--- a/arch/microblaze/bits/mman.h
+++ b/arch/microblaze/bits/mman.h
@@ -37,6 +37,7 @@
 
 #define MCL_CURRENT     1
 #define MCL_FUTURE      2
+#define MCL_ONFAULT     4
 
 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
 #define MADV_NORMAL      0
--- a/arch/microblaze/bits/msg.h
+++ /dev/null
@@ -1,16 +0,0 @@
-struct msqid_ds
-{
-	struct ipc_perm msg_perm;
-	time_t msg_stime;
-	int __unused1;
-	time_t msg_rtime;
-	int __unused2;
-	time_t msg_ctime;
-	int __unused3;
-	unsigned long msg_cbytes;
-	msgqnum_t msg_qnum;
-	msglen_t msg_qbytes;
-	pid_t msg_lspid;
-	pid_t msg_lrpid;
-	unsigned long __unused[2];
-};
--- a/arch/microblaze/bits/sem.h
+++ /dev/null
@@ -1,16 +0,0 @@
-struct semid_ds {
-	struct ipc_perm sem_perm;
-	time_t sem_otime;
-	time_t __unused1;
-	time_t sem_ctime;
-	time_t __unused2;
-#if __BYTE_ORDER == __LITTLE_ENDIAN
-	unsigned short sem_nsems;
-	char __sem_nsems_pad[sizeof(time_t)-sizeof(short)];
-#else
-	char __sem_nsems_pad[sizeof(time_t)-sizeof(short)];
-	unsigned short sem_nsems;
-#endif
-	time_t __unused3;
-	time_t __unused4;
-};
--- a/arch/microblaze/bits/shm.h
+++ /dev/null
@@ -1,29 +0,0 @@
-#define SHMLBA 4096
-
-struct shmid_ds
-{
-	struct ipc_perm shm_perm;
-	size_t shm_segsz;
-	time_t shm_atime;
-	int __unused1;
-	time_t shm_dtime;
-	int __unused2;
-	time_t shm_ctime;
-	int __unused3;
-	pid_t shm_cpid;
-	pid_t shm_lpid;
-	unsigned long shm_nattch;
-	unsigned long __pad1;
-	unsigned long __pad2;
-};
-
-struct shminfo {
-	unsigned long shmmax, shmmin, shmmni, shmseg, shmall, __unused[4];
-};
-
-struct shm_info {
-	int __used_ids;
-	unsigned long shm_tot, shm_rss, shm_swp;
-	unsigned long __swap_attempts, __swap_successes;
-};
-
--- a/arch/microblaze/bits/socket.h
+++ /dev/null
@@ -1,17 +0,0 @@
-struct msghdr
-{
-	void *msg_name;
-	socklen_t msg_namelen;
-	struct iovec *msg_iov;
-	int msg_iovlen;
-	void *msg_control;
-	socklen_t msg_controllen;
-	int msg_flags;
-};
-
-struct cmsghdr
-{
-	socklen_t cmsg_len;
-	int cmsg_level;
-	int cmsg_type;
-};
--- a/arch/microblaze/bits/statfs.h
+++ /dev/null
@@ -1,7 +0,0 @@
-struct statfs {
-	unsigned long f_type, f_bsize;
-	fsblkcnt_t f_blocks, f_bfree, f_bavail;
-	fsfilcnt_t f_files, f_ffree;
-	fsid_t f_fsid;
-	unsigned long f_namelen, f_frsize, f_flags, f_spare[4];
-};
--- a/arch/microblaze/bits/stdarg.h
+++ /dev/null
@@ -1,4 +0,0 @@
-#define va_start(v,l)   __builtin_va_start(v,l)
-#define va_end(v)       __builtin_va_end(v)
-#define va_arg(v,l)     __builtin_va_arg(v,l)
-#define va_copy(d,s)    __builtin_va_copy(d,s)
--- a/arch/microblaze/bits/termios.h
+++ /dev/null
@@ -1,160 +0,0 @@
-struct termios
-{
-	tcflag_t c_iflag;
-	tcflag_t c_oflag;
-	tcflag_t c_cflag;
-	tcflag_t c_lflag;
-	cc_t c_line;
-	cc_t c_cc[NCCS];
-	speed_t __c_ispeed;
-	speed_t __c_ospeed;
-};
-
-#define VINTR     0
-#define VQUIT     1
-#define VERASE    2
-#define VKILL     3
-#define VEOF      4
-#define VTIME     5
-#define VMIN      6
-#define VSWTC     7
-#define VSTART    8
-#define VSTOP     9
-#define VSUSP    10
-#define VEOL     11
-#define VREPRINT 12
-#define VDISCARD 13
-#define VWERASE  14
-#define VLNEXT   15
-#define VEOL2    16
-
-#define IGNBRK  0000001
-#define BRKINT  0000002
-#define IGNPAR  0000004
-#define PARMRK  0000010
-#define INPCK   0000020
-#define ISTRIP  0000040
-#define INLCR   0000100
-#define IGNCR   0000200
-#define ICRNL   0000400
-#define IUCLC   0001000
-#define IXON    0002000
-#define IXANY   0004000
-#define IXOFF   0010000
-#define IMAXBEL 0020000
-#define IUTF8   0040000
-
-#define OPOST  0000001
-#define OLCUC  0000002
-#define ONLCR  0000004
-#define OCRNL  0000010
-#define ONOCR  0000020
-#define ONLRET 0000040
-#define OFILL  0000100
-#define OFDEL  0000200
-#define NLDLY  0000400
-#define NL0    0000000
-#define NL1    0000400
-#define CRDLY  0003000
-#define CR0    0000000
-#define CR1    0001000
-#define CR2    0002000
-#define CR3    0003000
-#define TABDLY 0014000
-#define TAB0   0000000
-#define TAB1   0004000
-#define TAB2   0010000
-#define TAB3   0014000
-#define BSDLY  0020000
-#define BS0    0000000
-#define BS1    0020000
-#define FFDLY  0100000
-#define FF0    0000000
-#define FF1    0100000
-
-#define VTDLY  0040000
-#define VT0    0000000
-#define VT1    0040000
-
-#define B0       0000000
-#define B50      0000001
-#define B75      0000002
-#define B110     0000003
-#define B134     0000004
-#define B150     0000005
-#define B200     0000006
-#define B300     0000007
-#define B600     0000010
-#define B1200    0000011
-#define B1800    0000012
-#define B2400    0000013
-#define B4800    0000014
-#define B9600    0000015
-#define B19200   0000016
-#define B38400   0000017
-
-#define B57600   0010001
-#define B115200  0010002
-#define B230400  0010003
-#define B460800  0010004
-#define B500000  0010005
-#define B576000  0010006
-#define B921600  0010007
-#define B1000000 0010010
-#define B1152000 0010011
-#define B1500000 0010012
-#define B2000000 0010013
-#define B2500000 0010014
-#define B3000000 0010015
-#define B3500000 0010016
-#define B4000000 0010017
-
-#define CBAUD    0010017
-
-#define CSIZE  0000060
-#define CS5    0000000
-#define CS6    0000020
-#define CS7    0000040
-#define CS8    0000060
-#define CSTOPB 0000100
-#define CREAD  0000200
-#define PARENB 0000400
-#define PARODD 0001000
-#define HUPCL  0002000
-#define CLOCAL 0004000
-
-#define ISIG   0000001
-#define ICANON 0000002
-#define ECHO   0000010
-#define ECHOE  0000020
-#define ECHOK  0000040
-#define ECHONL 0000100
-#define NOFLSH 0000200
-#define TOSTOP 0000400
-#define IEXTEN 0100000
-
-#define ECHOCTL 0001000
-#define ECHOPRT 0002000
-#define ECHOKE 0004000
-#define FLUSHO 0010000
-#define PENDIN 0040000
-
-#define TCOOFF 0
-#define TCOON  1
-#define TCIOFF 2
-#define TCION  3
-
-#define TCIFLUSH  0
-#define TCOFLUSH  1
-#define TCIOFLUSH 2
-
-#define TCSANOW   0
-#define TCSADRAIN 1
-#define TCSAFLUSH 2
-
-#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
-#define CBAUDEX 0010000
-#define CRTSCTS  020000000000
-#define EXTPROC 0200000
-#define XTABS  0014000
-#endif
--- a/arch/microblaze/pthread_arch.h
+++ b/arch/microblaze/pthread_arch.h
@@ -7,4 +7,4 @@ static inline struct pthread *__pthread_
 
 #define TP_ADJ(p) (p)
 
-#define CANCEL_REG_IP 32
+#define MC_PC regs.pc
--- a/arch/mips/atomic.h
+++ /dev/null
@@ -1,205 +0,0 @@
-#ifndef _INTERNAL_ATOMIC_H
-#define _INTERNAL_ATOMIC_H
-
-#include <stdint.h>
-
-static inline int a_ctz_l(unsigned long x)
-{
-	static const char debruijn32[32] = {
-		0, 1, 23, 2, 29, 24, 19, 3, 30, 27, 25, 11, 20, 8, 4, 13,
-		31, 22, 28, 18, 26, 10, 7, 12, 21, 17, 9, 6, 16, 5, 15, 14
-	};
-	return debruijn32[(x&-x)*0x076be629 >> 27];
-}
-
-static inline int a_ctz_64(uint64_t x)
-{
-	uint32_t y = x;
-	if (!y) {
-		y = x>>32;
-		return 32 + a_ctz_l(y);
-	}
-	return a_ctz_l(y);
-}
-
-static inline int a_cas(volatile int *p, int t, int s)
-{
-	int dummy;
-	__asm__ __volatile__(
-		".set push\n"
-		".set mips2\n"
-		".set noreorder\n"
-		"	sync\n"
-		"1:	ll %0, %2\n"
-		"	bne %0, %3, 1f\n"
-		"	addu %1, %4, $0\n"
-		"	sc %1, %2\n"
-		"	beq %1, $0, 1b\n"
-		"	nop\n"
-		"	sync\n"
-		"1:	\n"
-		".set pop\n"
-		: "=&r"(t), "=&r"(dummy), "+m"(*p) : "r"(t), "r"(s) : "memory" );
-        return t;
-}
-
-static inline void *a_cas_p(volatile void *p, void *t, void *s)
-{
-	return (void *)a_cas(p, (int)t, (int)s);
-}
-
-static inline int a_swap(volatile int *x, int v)
-{
-	int old, dummy;
-	__asm__ __volatile__(
-		".set push\n"
-		".set mips2\n"
-		".set noreorder\n"
-		"	sync\n"
-		"1:	ll %0, %2\n"
-		"	addu %1, %3, $0\n"
-		"	sc %1, %2\n"
-		"	beq %1, $0, 1b\n"
-		"	nop\n"
-		"	sync\n"
-		".set pop\n"
-		: "=&r"(old), "=&r"(dummy), "+m"(*x) : "r"(v) : "memory" );
-        return old;
-}
-
-static inline int a_fetch_add(volatile int *x, int v)
-{
-	int old, dummy;
-	__asm__ __volatile__(
-		".set push\n"
-		".set mips2\n"
-		".set noreorder\n"
-		"	sync\n"
-		"1:	ll %0, %2\n"
-		"	addu %1, %0, %3\n"
-		"	sc %1, %2\n"
-		"	beq %1, $0, 1b\n"
-		"	nop\n"
-		"	sync\n"
-		".set pop\n"
-		: "=&r"(old), "=&r"(dummy), "+m"(*x) : "r"(v) : "memory" );
-        return old;
-}
-
-static inline void a_inc(volatile int *x)
-{
-	int dummy;
-	__asm__ __volatile__(
-		".set push\n"
-		".set mips2\n"
-		".set noreorder\n"
-		"	sync\n"
-		"1:	ll %0, %1\n"
-		"	addu %0, %0, 1\n"
-		"	sc %0, %1\n"
-		"	beq %0, $0, 1b\n"
-		"	nop\n"
-		"	sync\n"
-		".set pop\n"
-		: "=&r"(dummy), "+m"(*x) : : "memory" );
-}
-
-static inline void a_dec(volatile int *x)
-{
-	int dummy;
-	__asm__ __volatile__(
-		".set push\n"
-		".set mips2\n"
-		".set noreorder\n"
-		"	sync\n"
-		"1:	ll %0, %1\n"
-		"	subu %0, %0, 1\n"
-		"	sc %0, %1\n"
-		"	beq %0, $0, 1b\n"
-		"	nop\n"
-		"	sync\n"
-		".set pop\n"
-		: "=&r"(dummy), "+m"(*x) : : "memory" );
-}
-
-static inline void a_store(volatile int *p, int x)
-{
-	__asm__ __volatile__(
-		".set push\n"
-		".set mips2\n"
-		".set noreorder\n"
-		"	sync\n"
-		"	sw %1, %0\n"
-		"	sync\n"
-		".set pop\n"
-		: "+m"(*p) : "r"(x) : "memory" );
-}
-
-#define a_spin a_barrier
-
-static inline void a_barrier()
-{
-	a_cas(&(int){0}, 0, 0);
-}
-
-static inline void a_crash()
-{
-	*(volatile char *)0=0;
-}
-
-static inline void a_and(volatile int *p, int v)
-{
-	int dummy;
-	__asm__ __volatile__(
-		".set push\n"
-		".set mips2\n"
-		".set noreorder\n"
-		"	sync\n"
-		"1:	ll %0, %1\n"
-		"	and %0, %0, %2\n"
-		"	sc %0, %1\n"
-		"	beq %0, $0, 1b\n"
-		"	nop\n"
-		"	sync\n"
-		".set pop\n"
-		: "=&r"(dummy), "+m"(*p) : "r"(v) : "memory" );
-}
-
-static inline void a_or(volatile int *p, int v)
-{
-	int dummy;
-	__asm__ __volatile__(
-		".set push\n"
-		".set mips2\n"
-		".set noreorder\n"
-		"	sync\n"
-		"1:	ll %0, %1\n"
-		"	or %0, %0, %2\n"
-		"	sc %0, %1\n"
-		"	beq %0, $0, 1b\n"
-		"	nop\n"
-		"	sync\n"
-		".set pop\n"
-		: "=&r"(dummy), "+m"(*p) : "r"(v) : "memory" );
-}
-
-static inline void a_or_l(volatile void *p, long v)
-{
-	a_or(p, v);
-}
-
-static inline void a_and_64(volatile uint64_t *p, uint64_t v)
-{
-	union { uint64_t v; uint32_t r[2]; } u = { v };
-	a_and((int *)p, u.r[0]);
-	a_and((int *)p+1, u.r[1]);
-}
-
-static inline void a_or_64(volatile uint64_t *p, uint64_t v)
-{
-	union { uint64_t v; uint32_t r[2]; } u = { v };
-	a_or((int *)p, u.r[0]);
-	a_or((int *)p+1, u.r[1]);
-}
-
-#endif
--- /dev/null
+++ b/arch/mips/atomic_arch.h
@@ -0,0 +1,39 @@
+#define a_ll a_ll
+static inline int a_ll(volatile int *p)
+{
+	int v;
+	__asm__ __volatile__ (
+		".set push ; .set mips2\n\t"
+		"ll %0, %1"
+		"\n\t.set pop"
+		: "=r"(v) : "m"(*p));
+	return v;
+}
+
+#define a_sc a_sc
+static inline int a_sc(volatile int *p, int v)
+{
+	int r;
+	__asm__ __volatile__ (
+		".set push ; .set mips2\n\t"
+		"sc %0, %1"
+		"\n\t.set pop"
+		: "=r"(r), "=m"(*p) : "0"(v) : "memory");
+	return r;
+}
+
+#define a_barrier a_barrier
+static inline void a_barrier()
+{
+	/* mips2 sync, but using too many directives causes
+	 * gcc not to inline it, so encode with .long instead. */
+	__asm__ __volatile__ (".long 0xf" : : : "memory");
+#if 0
+	__asm__ __volatile__ (
+		".set push ; .set mips2 ; sync ; .set pop"
+		: : : "memory");
+#endif
+}
+
+#define a_pre_llsc a_barrier
+#define a_post_llsc a_barrier
--- a/arch/mips/bits/ipc.h
+++ /dev/null
@@ -1,14 +0,0 @@
-struct ipc_perm
-{
-	key_t __ipc_perm_key;
-	uid_t uid;
-	gid_t gid;
-	uid_t cuid;
-	gid_t cgid;
-	mode_t mode;
-	int __ipc_perm_seq;
-	long __pad1;
-	long __pad2;
-};
-
-#define IPC_64 0x100
--- a/arch/mips/bits/mman.h
+++ b/arch/mips/bits/mman.h
@@ -37,6 +37,7 @@
 
 #define MCL_CURRENT     1
 #define MCL_FUTURE      2
+#define MCL_ONFAULT     4
 
 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
 #define MADV_NORMAL      0
--- a/arch/mips/bits/signal.h
+++ b/arch/mips/bits/signal.h
@@ -73,6 +73,15 @@ typedef struct __ucontext {
 #define SIG_UNBLOCK   2
 #define SIG_SETMASK   3
 
+#undef SI_ASYNCIO
+#undef SI_MESGQ
+#undef SI_TIMER
+#define SI_ASYNCIO (-2)
+#define SI_MESGQ (-4)
+#define SI_TIMER (-3)
+
+#define __SI_SWAP_ERRNO_CODE
+
 #endif
 
 #define SIGHUP    1
--- a/arch/mips/bits/stdarg.h
+++ /dev/null
@@ -1,4 +0,0 @@
-#define va_start(v,l)   __builtin_va_start(v,l)
-#define va_end(v)       __builtin_va_end(v)
-#define va_arg(v,l)     __builtin_va_arg(v,l)
-#define va_copy(d,s)    __builtin_va_copy(d,s)
--- a/arch/mips/bits/syscall.h
+++ b/arch/mips/bits/syscall.h
@@ -354,6 +354,9 @@
 #define __NR_memfd_create            4354
 #define __NR_bpf                     4355
 #define __NR_execveat                4356
+#define __NR_userfaultfd             4357
+#define __NR_membarrier              4358
+#define __NR_mlock2                  4359
 
 
 /* Repeated with SYS_ prefix */
@@ -713,3 +716,6 @@
 #define SYS_memfd_create            4354
 #define SYS_bpf                     4355
 #define SYS_execveat                4356
+#define SYS_userfaultfd             4357
+#define SYS_membarrier              4358
+#define SYS_mlock2                  4359
--- a/arch/mips/crt_arch.h
+++ b/arch/mips/crt_arch.h
@@ -4,13 +4,16 @@ __asm__(
 ".text \n"
 ".global _" START "\n"
 ".global " START "\n"
+".global " START "_data\n"
 ".type   _" START ", @function\n"
 ".type   " START ", @function\n"
+".type   " START "_data, @function\n"
 "_" START ":\n"
 "" START ":\n"
 "	bal 1f \n"
 "	 move $fp, $0 \n"
-"2:	.gpword 2b \n"
+"" START "_data: \n"
+"	.gpword " START "_data \n"
 "	.gpword " START "_c \n"
 ".weak _DYNAMIC \n"
 ".hidden _DYNAMIC \n"
--- a/arch/mips/pthread_arch.h
+++ b/arch/mips/pthread_arch.h
@@ -16,4 +16,4 @@ static inline struct pthread *__pthread_
 
 #define DTP_OFFSET 0x8000
 
-#define CANCEL_REG_IP (3-(union {int __i; char __b;}){1}.__b)
+#define MC_PC pc
--- a/arch/mips/syscall_arch.h
+++ b/arch/mips/syscall_arch.h
@@ -3,9 +3,7 @@
 ((union { long long ll; long l[2]; }){ .ll = x }).l[1]
 #define __SYSCALL_LL_O(x) 0, __SYSCALL_LL_E((x))
 
-#ifdef SHARED
 __attribute__((visibility("hidden")))
-#endif
 long (__syscall)(long, ...);
 
 #define SYSCALL_RLIM_INFINITY (-1UL/2)
@@ -163,3 +161,7 @@ static inline long __syscall6(long n, lo
 	if (n == SYS_fstatat) __stat_fix(c);
 	return r2;
 }
+
+#define VDSO_USEFUL
+#define VDSO_CGT_SYM "__vdso_clock_gettime"
+#define VDSO_CGT_VER "LINUX_2.6"
--- a/arch/or1k/atomic.h
+++ /dev/null
@@ -1,120 +0,0 @@
-#ifndef _INTERNAL_ATOMIC_H
-#define _INTERNAL_ATOMIC_H
-
-#include <stdint.h>
-
-static inline int a_ctz_l(unsigned long x)
-{
-	static const char debruijn32[32] = {
-		0, 1, 23, 2, 29, 24, 19, 3, 30, 27, 25, 11, 20, 8, 4, 13,
-		31, 22, 28, 18, 26, 10, 7, 12, 21, 17, 9, 6, 16, 5, 15, 14
-	};
-	return debruijn32[(x&-x)*0x076be629 >> 27];
-}
-
-static inline int a_ctz_64(uint64_t x)
-{
-	uint32_t y = x;
-	if (!y) {
-		y = x>>32;
-		return 32 + a_ctz_l(y);
-	}
-	return a_ctz_l(y);
-}
-
-static inline int a_cas(volatile int *p, int t, int s)
-{
-	__asm__("1:	l.lwa %0, %1\n"
-		"	l.sfeq %0, %2\n"
-		"	l.bnf 1f\n"
-		"	 l.nop\n"
-		"	l.swa %1, %3\n"
-		"	l.bnf 1b\n"
-		"	 l.nop\n"
-		"1:	\n"
-		: "=&r"(t), "+m"(*p) : "r"(t), "r"(s) : "cc", "memory" );
-        return t;
-}
-
-static inline void *a_cas_p(volatile void *p, void *t, void *s)
-{
-	return (void *)a_cas(p, (int)t, (int)s);
-}
-
-static inline int a_swap(volatile int *x, int v)
-{
-	int old;
-	do old = *x;
-	while (a_cas(x, old, v) != old);
-	return old;
-}
-
-static inline int a_fetch_add(volatile int *x, int v)
-{
-	int old;
-	do old = *x;
-	while (a_cas(x, old, old+v) != old);
-	return old;
-}
-
-static inline void a_inc(volatile int *x)
-{
-	a_fetch_add(x, 1);
-}
-
-static inline void a_dec(volatile int *x)
-{
-	a_fetch_add(x, -1);
-}
-
-static inline void a_store(volatile int *p, int x)
-{
-	a_swap(p, x);
-}
-
-#define a_spin a_barrier
-
-static inline void a_barrier()
-{
-	a_cas(&(int){0}, 0, 0);
-}
-
-static inline void a_crash()
-{
-	*(volatile char *)0=0;
-}
-
-static inline void a_and(volatile int *p, int v)
-{
-	int old;
-	do old = *p;
-	while (a_cas(p, old, old&v) != old);
-}
-
-static inline void a_or(volatile int *p, int v)
-{
-	int old;
-	do old = *p;
-	while (a_cas(p, old, old|v) != old);
-}
-
-static inline void a_or_l(volatile void *p, long v)
-{
-	a_or(p, v);
-}
-
-static inline void a_and_64(volatile uint64_t *p, uint64_t v)
-{
-	union { uint64_t v; uint32_t r[2]; } u = { v };
-	a_and((int *)p, u.r[0]);
-	a_and((int *)p+1, u.r[1]);
-}
-
-static inline void a_or_64(volatile uint64_t *p, uint64_t v)
-{
-	union { uint64_t v; uint32_t r[2]; } u = { v };
-	a_or((int *)p, u.r[0]);
-	a_or((int *)p+1, u.r[1]);
-}
-
-#endif
--- /dev/null
+++ b/arch/or1k/atomic_arch.h
@@ -0,0 +1,14 @@
+#define a_cas a_cas
+static inline int a_cas(volatile int *p, int t, int s)
+{
+	__asm__("1:	l.lwa %0, %1\n"
+		"	l.sfeq %0, %2\n"
+		"	l.bnf 1f\n"
+		"	 l.nop\n"
+		"	l.swa %1, %3\n"
+		"	l.bnf 1b\n"
+		"	 l.nop\n"
+		"1:	\n"
+		: "=&r"(t), "+m"(*p) : "r"(t), "r"(s) : "cc", "memory" );
+        return t;
+}
--- a/arch/or1k/bits/errno.h
+++ /dev/null
@@ -1,134 +0,0 @@
-#define EPERM            1
-#define ENOENT           2
-#define ESRCH            3
-#define EINTR            4
-#define EIO              5
-#define ENXIO            6
-#define E2BIG            7
-#define ENOEXEC          8
-#define EBADF            9
-#define ECHILD          10
-#define EAGAIN          11
-#define ENOMEM          12
-#define EACCES          13
-#define EFAULT          14
-#define ENOTBLK         15
-#define EBUSY           16
-#define EEXIST          17
-#define EXDEV           18
-#define ENODEV          19
-#define ENOTDIR         20
-#define EISDIR          21
-#define EINVAL          22
-#define ENFILE          23
-#define EMFILE          24
-#define ENOTTY          25
-#define ETXTBSY         26
-#define EFBIG           27
-#define ENOSPC          28
-#define ESPIPE          29
-#define EROFS           30
-#define EMLINK          31
-#define EPIPE           32
-#define EDOM            33
-#define ERANGE          34
-#define EDEADLK         35
-#define ENAMETOOLONG    36
-#define ENOLCK          37
-#define ENOSYS          38
-#define ENOTEMPTY       39
-#define ELOOP           40
-#define EWOULDBLOCK     EAGAIN
-#define ENOMSG          42
-#define EIDRM           43
-#define ECHRNG          44
-#define EL2NSYNC        45
-#define EL3HLT          46
-#define EL3RST          47
-#define ELNRNG          48
-#define EUNATCH         49
-#define ENOCSI          50
-#define EL2HLT          51
-#define EBADE           52
-#define EBADR           53
-#define EXFULL          54
-#define ENOANO          55
-#define EBADRQC         56
-#define EBADSLT         57
-#define EDEADLOCK       EDEADLK
-#define EBFONT          59
-#define ENOSTR          60
-#define ENODATA         61
-#define ETIME           62
-#define ENOSR           63
-#define ENONET          64
-#define ENOPKG          65
-#define EREMOTE         66
-#define ENOLINK         67
-#define EADV            68
-#define ESRMNT          69
-#define ECOMM           70
-#define EPROTO          71
-#define EMULTIHOP       72
-#define EDOTDOT         73
-#define EBADMSG         74
-#define EOVERFLOW       75
-#define ENOTUNIQ        76
-#define EBADFD          77
-#define EREMCHG         78
-#define ELIBACC         79
-#define ELIBBAD         80
-#define ELIBSCN         81
-#define ELIBMAX         82
-#define ELIBEXEC        83
-#define EILSEQ          84
-#define ERESTART        85
-#define ESTRPIPE        86
-#define EUSERS          87
-#define ENOTSOCK        88
-#define EDESTADDRREQ    89
-#define EMSGSIZE        90
-#define EPROTOTYPE      91
-#define ENOPROTOOPT     92
-#define EPROTONOSUPPORT 93
-#define ESOCKTNOSUPPORT 94
-#define EOPNOTSUPP      95
-#define ENOTSUP         EOPNOTSUPP
-#define EPFNOSUPPORT    96
-#define EAFNOSUPPORT    97
-#define EADDRINUSE      98
-#define EADDRNOTAVAIL   99
-#define ENETDOWN        100
-#define ENETUNREACH     101
-#define ENETRESET       102
-#define ECONNABORTED    103
-#define ECONNRESET      104
-#define ENOBUFS         105
-#define EISCONN         106
-#define ENOTCONN        107
-#define ESHUTDOWN       108
-#define ETOOMANYREFS    109
-#define ETIMEDOUT       110
-#define ECONNREFUSED    111
-#define EHOSTDOWN       112
-#define EHOSTUNREACH    113
-#define EALREADY        114
-#define EINPROGRESS     115
-#define ESTALE          116
-#define EUCLEAN         117
-#define ENOTNAM         118
-#define ENAVAIL         119
-#define EISNAM          120
-#define EREMOTEIO       121
-#define EDQUOT          122
-#define ENOMEDIUM       123
-#define EMEDIUMTYPE     124
-#define ECANCELED       125
-#define ENOKEY          126
-#define EKEYEXPIRED     127
-#define EKEYREVOKED     128
-#define EKEYREJECTED    129
-#define EOWNERDEAD      130
-#define ENOTRECOVERABLE 131
-#define ERFKILL         132
-#define EHWPOISON       133
--- a/arch/or1k/bits/fcntl.h
+++ /dev/null
@@ -1,40 +0,0 @@
-#define O_CREAT        0100
-#define O_EXCL         0200
-#define O_NOCTTY       0400
-#define O_TRUNC       01000
-#define O_APPEND      02000
-#define O_NONBLOCK    04000
-#define O_DSYNC      010000
-#define O_SYNC     04010000
-#define O_RSYNC    04010000
-#define O_DIRECTORY 0200000
-#define O_NOFOLLOW  0400000
-#define O_CLOEXEC  02000000
-
-#define O_ASYNC      020000
-#define O_DIRECT     040000
-#define O_LARGEFILE 0100000
-#define O_NOATIME  01000000
-#define O_PATH    010000000
-#define O_TMPFILE 020200000
-#define O_NDELAY O_NONBLOCK
-
-#define F_DUPFD  0
-#define F_GETFD  1
-#define F_SETFD  2
-#define F_GETFL  3
-#define F_SETFL  4
-
-#define F_SETOWN 8
-#define F_GETOWN 9
-#define F_SETSIG 10
-#define F_GETSIG 11
-
-#define F_GETLK 12
-#define F_SETLK 13
-#define F_SETLKW 14
-
-#define F_SETOWN_EX 15
-#define F_GETOWN_EX 16
-
-#define F_GETOWNER_UIDS 17
--- a/arch/or1k/bits/fenv.h
+++ /dev/null
@@ -1,10 +0,0 @@
-#define FE_ALL_EXCEPT 0
-#define FE_TONEAREST  0
-
-typedef unsigned long fexcept_t;
-
-typedef struct {
-	unsigned long __cw;
-} fenv_t;
-
-#define FE_DFL_ENV      ((const fenv_t *) -1)
--- a/arch/or1k/bits/ioctl.h
+++ /dev/null
@@ -1,197 +0,0 @@
-#define _IOC(a,b,c,d) ( ((a)<<30) | ((b)<<8) | (c) | ((d)<<16) )
-#define _IOC_NONE  0U
-#define _IOC_WRITE 1U
-#define _IOC_READ  2U
-
-#define _IO(a,b) _IOC(_IOC_NONE,(a),(b),0)
-#define _IOW(a,b,c) _IOC(_IOC_WRITE,(a),(b),sizeof(c))
-#define _IOR(a,b,c) _IOC(_IOC_READ,(a),(b),sizeof(c))
-#define _IOWR(a,b,c) _IOC(_IOC_READ|_IOC_WRITE,(a),(b),sizeof(c))
-
-#define TCGETS		0x5401
-#define TCSETS		0x5402
-#define TCSETSW		0x5403
-#define TCSETSF		0x5404
-#define TCGETA		0x5405
-#define TCSETA		0x5406
-#define TCSETAW		0x5407
-#define TCSETAF		0x5408
-#define TCSBRK		0x5409
-#define TCXONC		0x540A
-#define TCFLSH		0x540B
-#define TIOCEXCL	0x540C
-#define TIOCNXCL	0x540D
-#define TIOCSCTTY	0x540E
-#define TIOCGPGRP	0x540F
-#define TIOCSPGRP	0x5410
-#define TIOCOUTQ	0x5411
-#define TIOCSTI		0x5412
-#define TIOCGWINSZ	0x5413
-#define TIOCSWINSZ	0x5414
-#define TIOCMGET	0x5415
-#define TIOCMBIS	0x5416
-#define TIOCMBIC	0x5417
-#define TIOCMSET	0x5418
-#define TIOCGSOFTCAR	0x5419
-#define TIOCSSOFTCAR	0x541A
-#define FIONREAD	0x541B
-#define TIOCINQ		FIONREAD
-#define TIOCLINUX	0x541C
-#define TIOCCONS	0x541D
-#define TIOCGSERIAL	0x541E
-#define TIOCSSERIAL	0x541F
-#define TIOCPKT		0x5420
-#define FIONBIO		0x5421
-#define TIOCNOTTY	0x5422
-#define TIOCSETD	0x5423
-#define TIOCGETD	0x5424
-#define TCSBRKP		0x5425
-#define TIOCTTYGSTRUCT	0x5426
-#define TIOCSBRK	0x5427
-#define TIOCCBRK	0x5428
-#define TIOCGSID	0x5429
-#define TIOCGPTN	0x80045430
-#define TIOCSPTLCK	0x40045431
-#define TCGETX		0x5432
-#define TCSETX		0x5433
-#define TCSETXF		0x5434
-#define TCSETXW		0x5435
-
-#define FIONCLEX	0x5450
-#define FIOCLEX		0x5451
-#define FIOASYNC	0x5452
-#define TIOCSERCONFIG	0x5453
-#define TIOCSERGWILD	0x5454
-#define TIOCSERSWILD	0x5455
-#define TIOCGLCKTRMIOS	0x5456
-#define TIOCSLCKTRMIOS	0x5457
-#define TIOCSERGSTRUCT	0x5458
-#define TIOCSERGETLSR   0x5459
-#define TIOCSERGETMULTI 0x545A
-#define TIOCSERSETMULTI 0x545B
-
-#define TIOCMIWAIT	0x545C
-#define TIOCGICOUNT	0x545D
-#define TIOCGHAYESESP   0x545E
-#define TIOCSHAYESESP   0x545F
-#define FIOQSIZE	0x5460
-
-#define TIOCPKT_DATA		 0
-#define TIOCPKT_FLUSHREAD	 1
-#define TIOCPKT_FLUSHWRITE	 2
-#define TIOCPKT_STOP		 4
-#define TIOCPKT_START		 8
-#define TIOCPKT_NOSTOP		16
-#define TIOCPKT_DOSTOP		32
-#define TIOCPKT_IOCTL		64
-
-#define TIOCSER_TEMT    0x01
-
-struct winsize {
-	unsigned short ws_row;
-	unsigned short ws_col;
-	unsigned short ws_xpixel;
-	unsigned short ws_ypixel;
-};
-
-#define TIOCM_LE        0x001
-#define TIOCM_DTR       0x002
-#define TIOCM_RTS       0x004
-#define TIOCM_ST        0x008
-#define TIOCM_SR        0x010
-#define TIOCM_CTS       0x020
-#define TIOCM_CAR       0x040
-#define TIOCM_RNG       0x080
-#define TIOCM_DSR       0x100
-#define TIOCM_CD        TIOCM_CAR
-#define TIOCM_RI        TIOCM_RNG
-#define TIOCM_OUT1      0x2000
-#define TIOCM_OUT2      0x4000
-#define TIOCM_LOOP      0x8000
-#define TIOCM_MODEM_BITS TIOCM_OUT2
-
-#define N_TTY           0
-#define N_SLIP          1
-#define N_MOUSE         2
-#define N_PPP           3
-#define N_STRIP         4
-#define N_AX25          5
-#define N_X25           6
-#define N_6PACK         7
-#define N_MASC          8
-#define N_R3964         9
-#define N_PROFIBUS_FDL  10
-#define N_IRDA          11
-#define N_SMSBLOCK      12
-#define N_HDLC          13
-#define N_SYNC_PPP      14
-#define N_HCI           15
-
-#define FIOSETOWN       0x8901
-#define SIOCSPGRP       0x8902
-#define FIOGETOWN       0x8903
-#define SIOCGPGRP       0x8904
-#define SIOCATMARK      0x8905
-#define SIOCGSTAMP      0x8906
-
-#define SIOCADDRT       0x890B
-#define SIOCDELRT       0x890C
-#define SIOCRTMSG       0x890D
-
-#define SIOCGIFNAME     0x8910
-#define SIOCSIFLINK     0x8911
-#define SIOCGIFCONF     0x8912
-#define SIOCGIFFLAGS    0x8913
-#define SIOCSIFFLAGS    0x8914
-#define SIOCGIFADDR     0x8915
-#define SIOCSIFADDR     0x8916
-#define SIOCGIFDSTADDR  0x8917
-#define SIOCSIFDSTADDR  0x8918
-#define SIOCGIFBRDADDR  0x8919
-#define SIOCSIFBRDADDR  0x891a
-#define SIOCGIFNETMASK  0x891b
-#define SIOCSIFNETMASK  0x891c
-#define SIOCGIFMETRIC   0x891d
-#define SIOCSIFMETRIC   0x891e
-#define SIOCGIFMEM      0x891f
-#define SIOCSIFMEM      0x8920
-#define SIOCGIFMTU      0x8921
-#define SIOCSIFMTU      0x8922
-#define SIOCSIFHWADDR   0x8924
-#define SIOCGIFENCAP    0x8925
-#define SIOCSIFENCAP    0x8926
-#define SIOCGIFHWADDR   0x8927
-#define SIOCGIFSLAVE    0x8929
-#define SIOCSIFSLAVE    0x8930
-#define SIOCADDMULTI    0x8931
-#define SIOCDELMULTI    0x8932
-#define SIOCGIFINDEX    0x8933
-#define SIOGIFINDEX     SIOCGIFINDEX
-#define SIOCSIFPFLAGS   0x8934
-#define SIOCGIFPFLAGS   0x8935
-#define SIOCDIFADDR     0x8936
-#define SIOCSIFHWBROADCAST 0x8937
-#define SIOCGIFCOUNT    0x8938
-
-#define SIOCGIFBR       0x8940
-#define SIOCSIFBR       0x8941
-
-#define SIOCGIFTXQLEN   0x8942
-#define SIOCSIFTXQLEN   0x8943
-
-#define SIOCDARP        0x8953
-#define SIOCGARP        0x8954
-#define SIOCSARP        0x8955
-
-#define SIOCDRARP       0x8960
-#define SIOCGRARP       0x8961
-#define SIOCSRARP       0x8962
-
-#define SIOCGIFMAP      0x8970
-#define SIOCSIFMAP      0x8971
-
-#define SIOCADDDLCI     0x8980
-#define SIOCDELDLCI     0x8981
-
-#define SIOCDEVPRIVATE		0x89F0
-#define SIOCPROTOPRIVATE	0x89E0
--- a/arch/or1k/bits/mman.h
+++ b/arch/or1k/bits/mman.h
@@ -37,6 +37,7 @@
 
 #define MCL_CURRENT     1
 #define MCL_FUTURE      2
+#define MCL_ONFAULT     4
 
 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
 #define MADV_NORMAL      0
--- a/arch/or1k/bits/shm.h
+++ /dev/null
@@ -1,27 +0,0 @@
-#define SHMLBA 4096
-
-struct shmid_ds {
-	struct ipc_perm shm_perm;
-	size_t shm_segsz;
-	time_t shm_atime;
-	int __unused1;
-	time_t shm_dtime;
-	int __unused2;
-	time_t shm_ctime;
-	int __unused3;
-	pid_t shm_cpid;
-	pid_t shm_lpid;
-	unsigned long shm_nattch;
-	unsigned long __pad1;
-	unsigned long __pad2;
-};
-
-struct shminfo {
-	unsigned long shmmax, shmmin, shmmni, shmseg, shmall, __unused[4];
-};
-
-struct shm_info {
-	int __used_ids;
-	unsigned long shm_tot, shm_rss, shm_swp;
-	unsigned long __swap_attempts, __swap_successes;
-};
--- a/arch/or1k/bits/socket.h
+++ /dev/null
@@ -1,15 +0,0 @@
-struct msghdr {
-	void *msg_name;
-	socklen_t msg_namelen;
-	struct iovec *msg_iov;
-	int msg_iovlen;
-	void *msg_control;
-	socklen_t msg_controllen;
-	int msg_flags;
-};
-
-struct cmsghdr {
-	socklen_t cmsg_len;
-	int cmsg_level;
-	int cmsg_type;
-};
--- a/arch/or1k/bits/statfs.h
+++ /dev/null
@@ -1,7 +0,0 @@
-struct statfs {
-	unsigned long f_type, f_bsize;
-	fsblkcnt_t f_blocks, f_bfree, f_bavail;
-	fsfilcnt_t f_files, f_ffree;
-	fsid_t f_fsid;
-	unsigned long f_namelen, f_frsize, f_flags, f_spare[4];
-};
--- a/arch/or1k/bits/stdarg.h
+++ /dev/null
@@ -1,4 +0,0 @@
-#define va_start(v,l)   __builtin_va_start(v,l)
-#define va_end(v)       __builtin_va_end(v)
-#define va_arg(v,l)     __builtin_va_arg(v,l)
-#define va_copy(d,s)    __builtin_va_copy(d,s)
--- a/arch/or1k/bits/syscall.h
+++ b/arch/or1k/bits/syscall.h
@@ -265,6 +265,9 @@
 #define __NR_memfd_create 279
 #define __NR_bpf 280
 #define __NR_execveat 281
+#define __NR_userfaultfd 282
+#define __NR_membarrier 283
+#define __NR_mlock2 284
 
 #define SYS_io_setup __NR_io_setup
 #define SYS_io_destroy __NR_io_destroy
@@ -533,3 +536,6 @@
 #define SYS_memfd_create __NR_memfd_create
 #define SYS_bpf __NR_bpf
 #define SYS_execveat __NR_execveat
+#define SYS_userfaultfd __NR_userfaultfd
+#define SYS_membarrier __NR_membarrier
+#define SYS_mlock2 __NR_mlock2
--- a/arch/or1k/bits/termios.h
+++ /dev/null
@@ -1,159 +0,0 @@
-struct termios {
-	tcflag_t c_iflag;
-	tcflag_t c_oflag;
-	tcflag_t c_cflag;
-	tcflag_t c_lflag;
-	cc_t c_line;
-	cc_t c_cc[NCCS];
-	speed_t __c_ispeed;
-	speed_t __c_ospeed;
-};
-
-#define VINTR     0
-#define VQUIT     1
-#define VERASE    2
-#define VKILL     3
-#define VEOF      4
-#define VTIME     5
-#define VMIN      6
-#define VSWTC     7
-#define VSTART    8
-#define VSTOP     9
-#define VSUSP    10
-#define VEOL     11
-#define VREPRINT 12
-#define VDISCARD 13
-#define VWERASE  14
-#define VLNEXT   15
-#define VEOL2    16
-
-#define IGNBRK  0000001
-#define BRKINT  0000002
-#define IGNPAR  0000004
-#define PARMRK  0000010
-#define INPCK   0000020
-#define ISTRIP  0000040
-#define INLCR   0000100
-#define IGNCR   0000200
-#define ICRNL   0000400
-#define IUCLC   0001000
-#define IXON    0002000
-#define IXANY   0004000
-#define IXOFF   0010000
-#define IMAXBEL 0020000
-#define IUTF8   0040000
-
-#define OPOST  0000001
-#define OLCUC  0000002
-#define ONLCR  0000004
-#define OCRNL  0000010
-#define ONOCR  0000020
-#define ONLRET 0000040
-#define OFILL  0000100
-#define OFDEL  0000200
-#define NLDLY  0000400
-#define NL0    0000000
-#define NL1    0000400
-#define CRDLY  0003000
-#define CR0    0000000
-#define CR1    0001000
-#define CR2    0002000
-#define CR3    0003000
-#define TABDLY 0014000
-#define TAB0   0000000
-#define TAB1   0004000
-#define TAB2   0010000
-#define TAB3   0014000
-#define BSDLY  0020000
-#define BS0    0000000
-#define BS1    0020000
-#define FFDLY  0100000
-#define FF0    0000000
-#define FF1    0100000
-
-#define VTDLY  0040000
-#define VT0    0000000
-#define VT1    0040000
-
-#define B0       0000000
-#define B50      0000001
-#define B75      0000002
-#define B110     0000003
-#define B134     0000004
-#define B150     0000005
-#define B200     0000006
-#define B300     0000007
-#define B600     0000010
-#define B1200    0000011
-#define B1800    0000012
-#define B2400    0000013
-#define B4800    0000014
-#define B9600    0000015
-#define B19200   0000016
-#define B38400   0000017
-
-#define B57600   0010001
-#define B115200  0010002
-#define B230400  0010003
-#define B460800  0010004
-#define B500000  0010005
-#define B576000  0010006
-#define B921600  0010007
-#define B1000000 0010010
-#define B1152000 0010011
-#define B1500000 0010012
-#define B2000000 0010013
-#define B2500000 0010014
-#define B3000000 0010015
-#define B3500000 0010016
-#define B4000000 0010017
-
-#define CBAUD    0010017
-
-#define CSIZE  0000060
-#define CS5    0000000
-#define CS6    0000020
-#define CS7    0000040
-#define CS8    0000060
-#define CSTOPB 0000100
-#define CREAD  0000200
-#define PARENB 0000400
-#define PARODD 0001000
-#define HUPCL  0002000
-#define CLOCAL 0004000
-
-#define ISIG   0000001
-#define ICANON 0000002
-#define ECHO   0000010
-#define ECHOE  0000020
-#define ECHOK  0000040
-#define ECHONL 0000100
-#define NOFLSH 0000200
-#define TOSTOP 0000400
-#define IEXTEN 0100000
-
-#define ECHOCTL 0001000
-#define ECHOPRT 0002000
-#define ECHOKE 0004000
-#define FLUSHO 0010000
-#define PENDIN 0040000
-
-#define TCOOFF 0
-#define TCOON  1
-#define TCIOFF 2
-#define TCION  3
-
-#define TCIFLUSH  0
-#define TCOFLUSH  1
-#define TCIOFLUSH 2
-
-#define TCSANOW   0
-#define TCSADRAIN 1
-#define TCSAFLUSH 2
-
-#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
-#define CBAUDEX 0010000
-#define CRTSCTS  020000000000
-#define EXTPROC 0200000
-#define XTABS  0014000
-#endif
--- a/arch/or1k/pthread_arch.h
+++ b/arch/or1k/pthread_arch.h
@@ -14,5 +14,4 @@ static inline struct pthread *__pthread_
 #define TLS_ABOVE_TP
 #define TP_ADJ(p) ((char *)(p) + sizeof(struct pthread))
 
-/* word-offset to 'pc' in mcontext_t */
-#define CANCEL_REG_IP 32
+#define MC_PC regs.pc
--- a/arch/powerpc/atomic.h
+++ /dev/null
@@ -1,126 +0,0 @@
-#ifndef _INTERNAL_ATOMIC_H
-#define _INTERNAL_ATOMIC_H
-
-#include <stdint.h>
-#include <endian.h>
-
-static inline int a_ctz_l(unsigned long x)
-{
-	static const char debruijn32[32] = {
-		0, 1, 23, 2, 29, 24, 19, 3, 30, 27, 25, 11, 20, 8, 4, 13,
-		31, 22, 28, 18, 26, 10, 7, 12, 21, 17, 9, 6, 16, 5, 15, 14
-	};
-	return debruijn32[(x&-x)*0x076be629 >> 27];
-}
-
-static inline int a_ctz_64(uint64_t x)
-{
-	uint32_t y = x;
-	if (!y) {
-		y = x>>32;
-		return 32 + a_ctz_l(y);
-	}
-	return a_ctz_l(y);
-}
-
-static inline int a_cas(volatile int *p, int t, int s)
-{
-	__asm__("\n"
-		"	sync\n"
-		"1:	lwarx %0, 0, %4\n"
-		"	cmpw %0, %2\n"
-		"	bne 1f\n"
-		"	stwcx. %3, 0, %4\n"
-		"	bne- 1b\n"
-		"	isync\n"
-		"1:	\n"
-		: "=&r"(t), "+m"(*p) : "r"(t), "r"(s), "r"(p) : "cc", "memory" );
-        return t;
-}
-
-static inline void *a_cas_p(volatile void *p, void *t, void *s)
-{
-	return (void *)a_cas(p, (int)t, (int)s);
-}
-
-static inline int a_swap(volatile int *x, int v)
-{
-	int old;
-	do old = *x;
-	while (a_cas(x, old, v) != old);
-	return old;
-}
-
-static inline int a_fetch_add(volatile int *x, int v)
-{
-	int old;
-	do old = *x;
-	while (a_cas(x, old, old+v) != old);
-	return old;
-}
-
-static inline void a_inc(volatile int *x)
-{
-	a_fetch_add(x, 1);
-}
-
-static inline void a_dec(volatile int *x)
-{
-	a_fetch_add(x, -1);
-}
-
-static inline void a_store(volatile int *p, int x)
-{
-	__asm__ __volatile__ ("\n"
-		"	sync\n"
-		"	stw %1, %0\n"
-		"	isync\n"
-		: "=m"(*p) : "r"(x) : "memory" );
-}
-
-#define a_spin a_barrier
-
-static inline void a_barrier()
-{
-	a_cas(&(int){0}, 0, 0);
-}
-
-static inline void a_crash()
-{
-	*(volatile char *)0=0;
-}
-
-static inline void a_and(volatile int *p, int v)
-{
-	int old;
-	do old = *p;
-	while (a_cas(p, old, old&v) != old);
-}
-
-static inline void a_or(volatile int *p, int v)
-{
-	int old;
-	do old = *p;
-	while (a_cas(p, old, old|v) != old);
-}
-
-static inline void a_or_l(volatile void *p, long v)
-{
-	a_or(p, v);
-}
-
-static inline void a_and_64(volatile uint64_t *p, uint64_t v)
-{
-	union { uint64_t v; uint32_t r[2]; } u = { v };
-	a_and((int *)p, u.r[0]);
-	a_and((int *)p+1, u.r[1]);
-}
-
-static inline void a_or_64(volatile uint64_t *p, uint64_t v)
-{
-	union { uint64_t v; uint32_t r[2]; } u = { v };
-	a_or((int *)p, u.r[0]);
-	a_or((int *)p+1, u.r[1]);
-}
-
-#endif
--- /dev/null
+++ b/arch/powerpc/atomic_arch.h
@@ -0,0 +1,39 @@
+#define a_ll a_ll
+static inline int a_ll(volatile int *p)
+{
+	int v;
+	__asm__ __volatile__ ("lwarx %0, 0, %2" : "=r"(v) : "m"(*p), "r"(p));
+	return v;
+}
+
+#define a_sc a_sc
+static inline int a_sc(volatile int *p, int v)
+{
+	int r;
+	__asm__ __volatile__ (
+		"stwcx. %2, 0, %3 ; mfcr %0"
+		: "=r"(r), "=m"(*p) : "r"(v), "r"(p) : "memory", "cc");
+	return r & 0x20000000; /* "bit 2" of "cr0" (backwards bit order) */
+}
+
+#define a_barrier a_barrier
+static inline void a_barrier()
+{
+	__asm__ __volatile__ ("sync" : : : "memory");
+}
+
+#define a_pre_llsc a_barrier
+
+#define a_post_llsc a_post_llsc
+static inline void a_post_llsc()
+{
+	__asm__ __volatile__ ("isync" : : : "memory");
+}
+
+#define a_store a_store
+static inline void a_store(volatile int *p, int v)
+{
+	a_pre_llsc();
+	*p = v;
+	a_post_llsc();
+}
--- a/arch/powerpc/bits/mman.h
+++ b/arch/powerpc/bits/mman.h
@@ -4,6 +4,7 @@
 #define	PROT_READ      1
 #define	PROT_WRITE     2
 #define	PROT_EXEC      4
+#define	PROT_SAO       0x10
 #define	PROT_GROWSDOWN 0x01000000
 #define	PROT_GROWSUP   0x02000000
 
@@ -35,8 +36,9 @@
 #define MS_INVALIDATE   2
 #define MS_SYNC         4
 
-#define MCL_CURRENT     1
-#define MCL_FUTURE      2
+#define MCL_CURRENT     0x2000
+#define MCL_FUTURE      0x4000
+#define MCL_ONFAULT     0x8000
 
 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
 #define MADV_NORMAL      0
--- a/arch/powerpc/bits/statfs.h
+++ /dev/null
@@ -1,7 +0,0 @@
-struct statfs {
-	unsigned long f_type, f_bsize;
-	fsblkcnt_t f_blocks, f_bfree, f_bavail;
-	fsfilcnt_t f_files, f_ffree;
-	fsid_t f_fsid;
-	unsigned long f_namelen, f_frsize, f_flags, f_spare[4];
-};
--- a/arch/powerpc/bits/stdarg.h
+++ /dev/null
@@ -1,4 +0,0 @@
-#define va_start(v,l)   __builtin_va_start(v,l)
-#define va_end(v)       __builtin_va_end(v)
-#define va_arg(v,l)     __builtin_va_arg(v,l)
-#define va_copy(d,s)    __builtin_va_copy(d,s)
--- a/arch/powerpc/bits/syscall.h
+++ b/arch/powerpc/bits/syscall.h
@@ -194,23 +194,19 @@
 #define __NR_vfork                  189
 #define __NR_ugetrlimit             190
 #define __NR_readahead              191
-#if !defined(__PPC64) || defined(__ABI32)
 #define __NR_mmap2                  192
 #define __NR_truncate64             193
 #define __NR_ftruncate64            194
 #define __NR_stat64                 195
 #define __NR_lstat64                196
 #define __NR_fstat64                197
-#endif
 #define __NR_pciconfig_read         198
 #define __NR_pciconfig_write        199
 #define __NR_pciconfig_iobase       200
 #define __NR_multiplexer            201
 #define __NR_getdents64             202
 #define __NR_pivot_root             203
-#if !defined(__PPC64) || defined(__ABI32)
 #define __NR_fcntl64                204
-#endif
 #define __NR_madvise                205
 #define __NR_mincore                206
 #define __NR_gettid                 207
@@ -231,9 +227,7 @@
 #define __NR_sched_setaffinity      222
 #define __NR_sched_getaffinity      223
 #define __NR_tuxcall                225
-#if !defined(__PPC64) || defined(__ABI32)
 #define __NR_sendfile64             226
-#endif
 #define __NR_io_setup               227
 #define __NR_io_destroy             228
 #define __NR_io_getevents           229
@@ -261,9 +255,7 @@
 #define __NR_utimes                 251
 #define __NR_statfs64               252
 #define __NR_fstatfs64              253
-#if !defined(__PPC64) || defined(__ABI32)
 #define __NR_fadvise64_64           254
-#endif
 #define __NR_rtas		255
 #define __NR_sys_debug_setcontext 256
 #define __NR_migrate_pages	258
@@ -299,11 +291,7 @@
 #define __NR_mknodat		288
 #define __NR_fchownat		289
 #define __NR_futimesat		290
-#if defined(__PPC64) && !defined(__ABI32)
-#define __NR_newfstatat		291
-#else
 #define __NR_fstatat64		291
-#endif
 #define __NR_unlinkat		292
 #define __NR_renameat		293
 #define __NR_linkat		294
@@ -376,6 +364,10 @@
 #define __NR_memfd_create          360
 #define __NR_bpf                   361
 #define __NR_execveat              362
+#define __NR_switch_endian         363
+#define __NR_userfaultfd           364
+#define __NR_membarrier            365
+#define __NR_mlock2                378
 
 /*
  * repeated with SYS prefix
@@ -576,23 +568,19 @@
 #define SYS_vfork                  189
 #define SYS_ugetrlimit             190
 #define SYS_readahead              191
-#if !defined(__PPC64) || defined(__ABI32)
 #define SYS_mmap2                  192
 #define SYS_truncate64             193
 #define SYS_ftruncate64            194
 #define SYS_stat64                 195
 #define SYS_lstat64                196
 #define SYS_fstat64                197
-#endif
 #define SYS_pciconfig_read         198
 #define SYS_pciconfig_write        199
 #define SYS_pciconfig_iobase       200
 #define SYS_multiplexer            201
 #define SYS_getdents64             202
 #define SYS_pivot_root             203
-#if !defined(__PPC64) || defined(__ABI32)
 #define SYS_fcntl64                204
-#endif
 #define SYS_madvise                205
 #define SYS_mincore                206
 #define SYS_gettid                 207
@@ -613,9 +601,7 @@
 #define SYS_sched_setaffinity      222
 #define SYS_sched_getaffinity      223
 #define SYS_tuxcall                225
-#if !defined(__PPC64) || defined(__ABI32)
 #define SYS_sendfile64             226
-#endif
 #define SYS_io_setup               227
 #define SYS_io_destroy             228
 #define SYS_io_getevents           229
@@ -643,9 +629,7 @@
 #define SYS_utimes                 251
 #define SYS_statfs64               252
 #define SYS_fstatfs64              253
-#if !defined(__PPC64) || defined(__ABI32)
 #define SYS_fadvise64_64           254
-#endif
 #define SYS_rtas		255
 #define SYS_sys_debug_setcontext 256
 #define SYS_migrate_pages	258
@@ -681,11 +665,7 @@
 #define SYS_mknodat		288
 #define SYS_fchownat		289
 #define SYS_futimesat		290
-#if defined(__PPC64) && !defined(__ABI32)
-#define SYS_newfstatat		291
-#else
 #define SYS_fstatat64		291
-#endif
 #define SYS_unlinkat		292
 #define SYS_renameat		293
 #define SYS_linkat		294
@@ -758,3 +738,7 @@
 #define SYS_memfd_create          360
 #define SYS_bpf                   361
 #define SYS_execveat              362
+#define SYS_switch_endian         363
+#define SYS_userfaultfd           364
+#define SYS_membarrier            365
+#define SYS_mlock2                378
--- a/arch/powerpc/pthread_arch.h
+++ b/arch/powerpc/pthread_arch.h
@@ -15,9 +15,8 @@ static inline struct pthread *__pthread_
 
 #define DTP_OFFSET 0x8000
 
-// offset of the PC register in mcontext_t, divided by the system wordsize
 // the kernel calls the ip "nip", it's the first saved value after the 32
 // GPRs.
-#define CANCEL_REG_IP 32
+#define MC_PC gregs[32]
 
 #define CANARY canary_at_end
--- a/arch/sh/atomic.h
+++ /dev/null
@@ -1,168 +0,0 @@
-#ifndef _INTERNAL_ATOMIC_H
-#define _INTERNAL_ATOMIC_H
-
-#include <stdint.h>
-
-static inline int a_ctz_l(unsigned long x)
-{
-	static const char debruijn32[32] = {
-		0, 1, 23, 2, 29, 24, 19, 3, 30, 27, 25, 11, 20, 8, 4, 13,
-		31, 22, 28, 18, 26, 10, 7, 12, 21, 17, 9, 6, 16, 5, 15, 14
-	};
-	return debruijn32[(x&-x)*0x076be629 >> 27];
-}
-
-static inline int a_ctz_64(uint64_t x)
-{
-	uint32_t y = x;
-	if (!y) {
-		y = x>>32;
-		return 32 + a_ctz_l(y);
-	}
-	return a_ctz_l(y);
-}
-
-#define LLSC_CLOBBERS "r0", "t", "memory"
-#define LLSC_START(mem) "synco\n"  \
-	"0:	movli.l @" mem ", r0\n"
-#define LLSC_END(mem)              \
-	"1:	movco.l r0, @" mem "\n"    \
-	"	bf 0b\n"                   \
-	"	synco\n"
-
-static inline int __sh_cas_llsc(volatile int *p, int t, int s)
-{
-	int old;
-	__asm__ __volatile__(
-		LLSC_START("%1")
-		"	mov r0, %0\n"
-		"	cmp/eq %0, %2\n"
-		"	bf 1f\n"
-		"	mov %3, r0\n"
-		LLSC_END("%1")
-		: "=&r"(old) : "r"(p), "r"(t), "r"(s) : LLSC_CLOBBERS);
-	return old;
-}
-
-static inline int __sh_swap_llsc(volatile int *x, int v)
-{
-	int old;
-	__asm__ __volatile__(
-		LLSC_START("%1")
-		"	mov r0, %0\n"
-		"	mov %2, r0\n"
-		LLSC_END("%1")
-		: "=&r"(old) : "r"(x), "r"(v) : LLSC_CLOBBERS);
-	return old;
-}
-
-static inline int __sh_fetch_add_llsc(volatile int *x, int v)
-{
-	int old;
-	__asm__ __volatile__(
-		LLSC_START("%1")
-		"	mov r0, %0\n"
-		"	add %2, r0\n"
-		LLSC_END("%1")
-		: "=&r"(old) : "r"(x), "r"(v) : LLSC_CLOBBERS);
-	return old;
-}
-
-static inline void __sh_store_llsc(volatile int *p, int x)
-{
-	__asm__ __volatile__(
-		"	synco\n"
-		"	mov.l %1, @%0\n"
-		"	synco\n"
-		: : "r"(p), "r"(x) : "memory");
-}
-
-static inline void __sh_and_llsc(volatile int *x, int v)
-{
-	__asm__ __volatile__(
-		LLSC_START("%0")
-		"	and %1, r0\n"
-		LLSC_END("%0")
-		: : "r"(x), "r"(v) : LLSC_CLOBBERS);
-}
-
-static inline void __sh_or_llsc(volatile int *x, int v)
-{
-	__asm__ __volatile__(
-		LLSC_START("%0")
-		"	or %1, r0\n"
-		LLSC_END("%0")
-		: : "r"(x), "r"(v) : LLSC_CLOBBERS);
-}
-
-#ifdef __SH4A__
-#define a_cas(p,t,s)     __sh_cas_llsc(p,t,s)
-#define a_swap(x,v)      __sh_swap_llsc(x,v)
-#define a_fetch_add(x,v) __sh_fetch_add_llsc(x, v)
-#define a_store(x,v)     __sh_store_llsc(x, v)
-#define a_and(x,v)       __sh_and_llsc(x, v)
-#define a_or(x,v)        __sh_or_llsc(x, v)
-#else
-
-int  __sh_cas(volatile int *, int, int);
-int  __sh_swap(volatile int *, int);
-int  __sh_fetch_add(volatile int *, int);
-void __sh_store(volatile int *, int);
-void __sh_and(volatile int *, int);
-void __sh_or(volatile int *, int);
-
-#define a_cas(p,t,s)     __sh_cas(p,t,s)
-#define a_swap(x,v)      __sh_swap(x,v)
-#define a_fetch_add(x,v) __sh_fetch_add(x, v)
-#define a_store(x,v)     __sh_store(x, v)
-#define a_and(x,v)       __sh_and(x, v)
-#define a_or(x,v)        __sh_or(x, v)
-#endif
-
-static inline void *a_cas_p(volatile void *p, void *t, void *s)
-{
-	return (void *)a_cas(p, (int)t, (int)s);
-}
-
-static inline void a_inc(volatile int *x)
-{
-	a_fetch_add(x, 1);
-}
-
-static inline void a_dec(volatile int *x)
-{
-	a_fetch_add(x, -1);
-}
-
-#define a_spin a_barrier
-
-static inline void a_barrier()
-{
-	a_cas(&(int){0}, 0, 0);
-}
-
-static inline void a_crash()
-{
-	*(volatile char *)0=0;
-}
-
-static inline void a_or_l(volatile void *p, long v)
-{
-	a_or(p, v);
-}
-
-static inline void a_and_64(volatile uint64_t *p, uint64_t v)
-{
-	union { uint64_t v; uint32_t r[2]; } u = { v };
-	a_and((int *)p,   u.r[0]);
-	a_and((int *)p+1, u.r[1]);
-}
-
-static inline void a_or_64(volatile uint64_t *p, uint64_t v)
-{
-	union { uint64_t v; uint32_t r[2]; } u = { v };
-	a_or((int *)p,   u.r[0]);
-	a_or((int *)p+1, u.r[1]);
-}
-
-#endif
--- /dev/null
+++ b/arch/sh/atomic_arch.h
@@ -0,0 +1,46 @@
+#if defined(__SH4A__)
+
+#define a_ll a_ll
+static inline int a_ll(volatile int *p)
+{
+	int v;
+	__asm__ __volatile__ ("movli.l @%1, %0" : "=z"(v) : "r"(p), "m"(*p));
+	return v;
+}
+
+#define a_sc a_sc
+static inline int a_sc(volatile int *p, int v)
+{
+	int r;
+	__asm__ __volatile__ (
+		"movco.l %2, @%3 ; movt %0"
+		: "=r"(r), "=m"(*p) : "z"(v), "r"(p) : "memory", "cc");
+	return r;
+}
+
+#define a_barrier a_barrier
+static inline void a_barrier()
+{
+	__asm__ __volatile__ ("synco" : : "memory");
+}
+
+#define a_pre_llsc a_barrier
+#define a_post_llsc a_barrier
+
+#else
+
+#define a_cas a_cas
+__attribute__((__visibility__("hidden"))) extern const void *__sh_cas_ptr;
+static inline int a_cas(volatile int *p, int t, int s)
+{
+	register int r1 __asm__("r1");
+	register int r2 __asm__("r2") = t;
+	register int r3 __asm__("r3") = s;
+	__asm__ __volatile__ (
+		"jsr @%4 ; nop"
+		: "=r"(r1), "+r"(r3) : "z"(p), "r"(r2), "r"(__sh_cas_ptr)
+		: "memory", "pr", "cc");
+	return r3;
+}
+
+#endif
--- a/arch/sh/bits/errno.h
+++ /dev/null
@@ -1,134 +0,0 @@
-#define EPERM            1
-#define ENOENT           2
-#define ESRCH            3
-#define EINTR            4
-#define EIO              5
-#define ENXIO            6
-#define E2BIG            7
-#define ENOEXEC          8
-#define EBADF            9
-#define ECHILD          10
-#define EAGAIN          11
-#define ENOMEM          12
-#define EACCES          13
-#define EFAULT          14
-#define ENOTBLK         15
-#define EBUSY           16
-#define EEXIST          17
-#define EXDEV           18
-#define ENODEV          19
-#define ENOTDIR         20
-#define EISDIR          21
-#define EINVAL          22
-#define ENFILE          23
-#define EMFILE          24
-#define ENOTTY          25
-#define ETXTBSY         26
-#define EFBIG           27
-#define ENOSPC          28
-#define ESPIPE          29
-#define EROFS           30
-#define EMLINK          31
-#define EPIPE           32
-#define EDOM            33
-#define ERANGE          34
-#define EDEADLK         35
-#define ENAMETOOLONG    36
-#define ENOLCK          37
-#define ENOSYS          38
-#define ENOTEMPTY       39
-#define ELOOP           40
-#define EWOULDBLOCK     EAGAIN
-#define ENOMSG          42
-#define EIDRM           43
-#define ECHRNG          44
-#define EL2NSYNC        45
-#define EL3HLT          46
-#define EL3RST          47
-#define ELNRNG          48
-#define EUNATCH         49
-#define ENOCSI          50
-#define EL2HLT          51
-#define EBADE           52
-#define EBADR           53
-#define EXFULL          54
-#define ENOANO          55
-#define EBADRQC         56
-#define EBADSLT         57
-#define EDEADLOCK       EDEADLK
-#define EBFONT          59
-#define ENOSTR          60
-#define ENODATA         61
-#define ETIME           62
-#define ENOSR           63
-#define ENONET          64
-#define ENOPKG          65
-#define EREMOTE         66
-#define ENOLINK         67
-#define EADV            68
-#define ESRMNT          69
-#define ECOMM           70
-#define EPROTO          71
-#define EMULTIHOP       72
-#define EDOTDOT         73
-#define EBADMSG         74
-#define EOVERFLOW       75
-#define ENOTUNIQ        76
-#define EBADFD          77
-#define EREMCHG         78
-#define ELIBACC         79
-#define ELIBBAD         80
-#define ELIBSCN         81
-#define ELIBMAX         82
-#define ELIBEXEC        83
-#define EILSEQ          84
-#define ERESTART        85
-#define ESTRPIPE        86
-#define EUSERS          87
-#define ENOTSOCK        88
-#define EDESTADDRREQ    89
-#define EMSGSIZE        90
-#define EPROTOTYPE      91
-#define ENOPROTOOPT     92
-#define EPROTONOSUPPORT 93
-#define ESOCKTNOSUPPORT 94
-#define EOPNOTSUPP      95
-#define ENOTSUP         EOPNOTSUPP
-#define EPFNOSUPPORT    96
-#define EAFNOSUPPORT    97
-#define EADDRINUSE      98
-#define EADDRNOTAVAIL   99
-#define ENETDOWN        100
-#define ENETUNREACH     101
-#define ENETRESET       102
-#define ECONNABORTED    103
-#define ECONNRESET      104
-#define ENOBUFS         105
-#define EISCONN         106
-#define ENOTCONN        107
-#define ESHUTDOWN       108
-#define ETOOMANYREFS    109
-#define ETIMEDOUT       110
-#define ECONNREFUSED    111
-#define EHOSTDOWN       112
-#define EHOSTUNREACH    113
-#define EALREADY        114
-#define EINPROGRESS     115
-#define ESTALE          116
-#define EUCLEAN         117
-#define ENOTNAM         118
-#define ENAVAIL         119
-#define EISNAM          120
-#define EREMOTEIO       121
-#define EDQUOT          122
-#define ENOMEDIUM       123
-#define EMEDIUMTYPE     124
-#define ECANCELED       125
-#define ENOKEY          126
-#define EKEYEXPIRED     127
-#define EKEYREVOKED     128
-#define EKEYREJECTED    129
-#define EOWNERDEAD      130
-#define ENOTRECOVERABLE 131
-#define ERFKILL         132
-#define EHWPOISON       133
--- a/arch/sh/bits/fcntl.h
+++ /dev/null
@@ -1,40 +0,0 @@
-#define O_CREAT        0100
-#define O_EXCL         0200
-#define O_NOCTTY       0400
-#define O_TRUNC       01000
-#define O_APPEND      02000
-#define O_NONBLOCK    04000
-#define O_DSYNC      010000
-#define O_SYNC     04010000
-#define O_RSYNC    04010000
-#define O_DIRECTORY 0200000
-#define O_NOFOLLOW  0400000
-#define O_CLOEXEC  02000000
-
-#define O_ASYNC      020000
-#define O_DIRECT     040000
-#define O_LARGEFILE 0100000
-#define O_NOATIME  01000000
-#define O_PATH    010000000
-#define O_TMPFILE 020200000
-#define O_NDELAY O_NONBLOCK
-
-#define F_DUPFD  0
-#define F_GETFD  1
-#define F_SETFD  2
-#define F_GETFL  3
-#define F_SETFL  4
-
-#define F_SETOWN 8
-#define F_GETOWN 9
-#define F_SETSIG 10
-#define F_GETSIG 11
-
-#define F_GETLK 12
-#define F_SETLK 13
-#define F_SETLKW 14
-
-#define F_SETOWN_EX 15
-#define F_GETOWN_EX 16
-
-#define F_GETOWNER_UIDS 17
--- a/arch/sh/bits/ipc.h
+++ /dev/null
@@ -1,14 +0,0 @@
-struct ipc_perm
-{
-	key_t __ipc_perm_key;
-	uid_t uid;
-	gid_t gid;
-	uid_t cuid;
-	gid_t cgid;
-	mode_t mode;
-	int __ipc_perm_seq;
-	long __pad1;
-	long __pad2;
-};
-
-#define IPC_64 0x100
--- a/arch/sh/bits/mman.h
+++ b/arch/sh/bits/mman.h
@@ -38,6 +38,7 @@
 
 #define MCL_CURRENT     1
 #define MCL_FUTURE      2
+#define MCL_ONFAULT     4
 
 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
 #define MADV_NORMAL      0
--- a/arch/sh/bits/msg.h
+++ /dev/null
@@ -1,16 +0,0 @@
-struct msqid_ds
-{
-	struct ipc_perm msg_perm;
-	time_t msg_stime;
-	int __unused1;
-	time_t msg_rtime;
-	int __unused2;
-	time_t msg_ctime;
-	int __unused3;
-	unsigned long msg_cbytes;
-	msgqnum_t msg_qnum;
-	msglen_t msg_qbytes;
-	pid_t msg_lspid;
-	pid_t msg_lrpid;
-	unsigned long __unused[2];
-};
--- a/arch/sh/bits/sem.h
+++ /dev/null
@@ -1,16 +0,0 @@
-struct semid_ds {
-	struct ipc_perm sem_perm;
-	time_t sem_otime;
-	time_t __unused1;
-	time_t sem_ctime;
-	time_t __unused2;
-#if __BYTE_ORDER == __LITTLE_ENDIAN
-	unsigned short sem_nsems;
-	char __sem_nsems_pad[sizeof(time_t)-sizeof(short)];
-#else
-	char __sem_nsems_pad[sizeof(time_t)-sizeof(short)];
-	unsigned short sem_nsems;
-#endif
-	time_t __unused3;
-	time_t __unused4;
-};
--- a/arch/sh/bits/socket.h
+++ /dev/null
@@ -1,17 +0,0 @@
-struct msghdr
-{
-	void *msg_name;
-	socklen_t msg_namelen;
-	struct iovec *msg_iov;
-	int msg_iovlen;
-	void *msg_control;
-	socklen_t msg_controllen;
-	int msg_flags;
-};
-
-struct cmsghdr
-{
-	socklen_t cmsg_len;
-	int cmsg_level;
-	int cmsg_type;
-};
--- a/arch/sh/bits/statfs.h
+++ /dev/null
@@ -1,7 +0,0 @@
-struct statfs {
-	unsigned long f_type, f_bsize;
-	fsblkcnt_t f_blocks, f_bfree, f_bavail;
-	fsfilcnt_t f_files, f_ffree;
-	fsid_t f_fsid;
-	unsigned long f_namelen, f_frsize, f_flags, f_spare[4];
-};
--- a/arch/sh/bits/stdarg.h
+++ /dev/null
@@ -1,4 +0,0 @@
-#define va_start(v,l)   __builtin_va_start(v,l)
-#define va_end(v)       __builtin_va_end(v)
-#define va_arg(v,l)     __builtin_va_arg(v,l)
-#define va_copy(d,s)    __builtin_va_copy(d,s)
--- a/arch/sh/bits/termios.h
+++ /dev/null
@@ -1,160 +0,0 @@
-struct termios
-{
-	tcflag_t c_iflag;
-	tcflag_t c_oflag;
-	tcflag_t c_cflag;
-	tcflag_t c_lflag;
-	cc_t c_line;
-	cc_t c_cc[NCCS];
-	speed_t __c_ispeed;
-	speed_t __c_ospeed;
-};
-
-#define VINTR     0
-#define VQUIT     1
-#define VERASE    2
-#define VKILL     3
-#define VEOF      4
-#define VTIME     5
-#define VMIN      6
-#define VSWTC     7
-#define VSTART    8
-#define VSTOP     9
-#define VSUSP    10
-#define VEOL     11
-#define VREPRINT 12
-#define VDISCARD 13
-#define VWERASE  14
-#define VLNEXT   15
-#define VEOL2    16
-
-#define IGNBRK  0000001
-#define BRKINT  0000002
-#define IGNPAR  0000004
-#define PARMRK  0000010
-#define INPCK   0000020
-#define ISTRIP  0000040
-#define INLCR   0000100
-#define IGNCR   0000200
-#define ICRNL   0000400
-#define IUCLC   0001000
-#define IXON    0002000
-#define IXANY   0004000
-#define IXOFF   0010000
-#define IMAXBEL 0020000
-#define IUTF8   0040000
-
-#define OPOST  0000001
-#define OLCUC  0000002
-#define ONLCR  0000004
-#define OCRNL  0000010
-#define ONOCR  0000020
-#define ONLRET 0000040
-#define OFILL  0000100
-#define OFDEL  0000200
-#define NLDLY  0000400
-#define NL0    0000000
-#define NL1    0000400
-#define CRDLY  0003000
-#define CR0    0000000
-#define CR1    0001000
-#define CR2    0002000
-#define CR3    0003000
-#define TABDLY 0014000
-#define TAB0   0000000
-#define TAB1   0004000
-#define TAB2   0010000
-#define TAB3   0014000
-#define BSDLY  0020000
-#define BS0    0000000
-#define BS1    0020000
-#define FFDLY  0100000
-#define FF0    0000000
-#define FF1    0100000
-
-#define VTDLY  0040000
-#define VT0    0000000
-#define VT1    0040000
-
-#define B0       0000000
-#define B50      0000001
-#define B75      0000002
-#define B110     0000003
-#define B134     0000004
-#define B150     0000005
-#define B200     0000006
-#define B300     0000007
-#define B600     0000010
-#define B1200    0000011
-#define B1800    0000012
-#define B2400    0000013
-#define B4800    0000014
-#define B9600    0000015
-#define B19200   0000016
-#define B38400   0000017
-
-#define B57600   0010001
-#define B115200  0010002
-#define B230400  0010003
-#define B460800  0010004
-#define B500000  0010005
-#define B576000  0010006
-#define B921600  0010007
-#define B1000000 0010010
-#define B1152000 0010011
-#define B1500000 0010012
-#define B2000000 0010013
-#define B2500000 0010014
-#define B3000000 0010015
-#define B3500000 0010016
-#define B4000000 0010017
-
-#define CBAUD    0010017
-
-#define CSIZE  0000060
-#define CS5    0000000
-#define CS6    0000020
-#define CS7    0000040
-#define CS8    0000060
-#define CSTOPB 0000100
-#define CREAD  0000200
-#define PARENB 0000400
-#define PARODD 0001000
-#define HUPCL  0002000
-#define CLOCAL 0004000
-
-#define ISIG   0000001
-#define ICANON 0000002
-#define ECHO   0000010
-#define ECHOE  0000020
-#define ECHOK  0000040
-#define ECHONL 0000100
-#define NOFLSH 0000200
-#define TOSTOP 0000400
-#define IEXTEN 0100000
-
-#define ECHOCTL 0001000
-#define ECHOPRT 0002000
-#define ECHOKE 0004000
-#define FLUSHO 0010000
-#define PENDIN 0040000
-
-#define TCOOFF 0
-#define TCOON  1
-#define TCIOFF 2
-#define TCION  3
-
-#define TCIFLUSH  0
-#define TCOFLUSH  1
-#define TCIOFLUSH 2
-
-#define TCSANOW   0
-#define TCSADRAIN 1
-#define TCSAFLUSH 2
-
-#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
-#define CBAUDEX 0010000
-#define CRTSCTS  020000000000
-#define EXTPROC 0200000
-#define XTABS  0014000
-#endif
--- a/arch/sh/crt_arch.h
+++ b/arch/sh/crt_arch.h
@@ -22,7 +22,8 @@ START ": \n"
 "	mov.l 1f, r5 \n"
 "	mov.l 1f+4, r6 \n"
 "	add r0, r5 \n"
-"	bsr __fdpic_fixup \n"
+"	mov.l 4f, r1 \n"
+"5:	bsrf r1 \n"
 "	 add r0, r6 \n"
 "	mov r0, r12 \n"
 #endif
@@ -31,11 +32,16 @@ START ": \n"
 "	mov.l r9, @-r15 \n"
 "	mov.l r8, @-r15 \n"
 "	mov #-16, r0 \n"
-"	bsr " START "_c \n"
+"	mov.l 2f, r1 \n"
+"3:	bsrf r1 \n"
 "	 and r0, r15 \n"
 ".align 2 \n"
 "1:	.long __ROFIXUP_LIST__@PCREL \n"
 "	.long __ROFIXUP_END__@PCREL + 4 \n"
+"2:	.long " START "_c@PCREL - (3b+4-.) \n"
+#ifndef SHARED
+"4:	.long __fdpic_fixup@PCREL - (5b+4-.) \n"
+#endif
 );
 
 #ifndef SHARED
@@ -53,13 +59,14 @@ START ": \n"
 "	add r0, r5 \n"
 "	mov r15, r4 \n"
 "	mov #-16, r0 \n"
-"	and r0, r15 \n"
-"	bsr " START "_c \n"
-"	nop \n"
+"	mov.l 2f, r1 \n"
+"3:	bsrf r1 \n"
+"	 and r0, r15 \n"
 ".align 2 \n"
 ".weak _DYNAMIC \n"
 ".hidden _DYNAMIC \n"
 "1:	.long _DYNAMIC-. \n"
+"2:	.long " START "_c@PCREL - (3b+4-.) \n"
 );
 
 #endif
--- a/arch/sh/pthread_arch.h
+++ b/arch/sh/pthread_arch.h
@@ -8,4 +8,4 @@ static inline struct pthread *__pthread_
 #define TLS_ABOVE_TP
 #define TP_ADJ(p) ((char *)(p) + sizeof(struct pthread) - 8)
 
-#define CANCEL_REG_IP 17
+#define MC_PC sc_pc
--- a/arch/sh/reloc.h
+++ b/arch/sh/reloc.h
@@ -32,6 +32,8 @@
 #define REL_DTPOFF      R_SH_TLS_DTPOFF32
 #define REL_TPOFF       R_SH_TLS_TPOFF32
 
+#define DL_NOMMU_SUPPORT 1
+
 #if __SH_FDPIC__
 #define REL_FUNCDESC    R_SH_FUNCDESC
 #define REL_FUNCDESC_VAL R_SH_FUNCDESC_VALUE
--- a/arch/sh/src/__fpscr_values.c
+++ /dev/null
@@ -1,5 +0,0 @@
-#include "libc.h"
-
-/* used by gcc for switching the FPU between single and double precision */
-//const unsigned long __fpscr_values[2] ATTR_LIBC_VISIBILITY = { 0, 0x80000 };
-
--- a/arch/sh/src/__set_thread_area.c
+++ /dev/null
@@ -1,34 +0,0 @@
-#include "pthread_impl.h"
-#include "libc.h"
-#include "sh_atomic.h"
-#include <elf.h>
-
-/* Also perform sh-specific init */
-
-#define CPU_HAS_LLSC 0x0040
-
-__attribute__((__visibility__("hidden"))) unsigned __sh_atomic_model, __sh_nommu;
-
-int __set_thread_area(void *p)
-{
-	size_t *aux;
-	__asm__ __volatile__ ( "ldc %0, gbr" : : "r"(p) : "memory" );
-#ifndef __SH4A__
-	if (__hwcap & CPU_HAS_LLSC) {
-		__sh_atomic_model = SH_A_LLSC;
-		return 0;
-	}
-#if !defined(__SH3__) && !defined(__SH4__)
-	for (aux=libc.auxv; *aux; aux+=2) {
-		if (*aux != AT_PLATFORM) continue;
-		const char *s = (void *)aux[1];
-		if (s[0]!='s' || s[1]!='h' || s[2]!='2' || s[3]-'0'<10u) break;
-		__sh_atomic_model = SH_A_IMASK;
-		__sh_nommu = 1;
-		return 0;
-	}
-#endif
-	/* __sh_atomic_model = SH_A_GUSA; */ /* 0, default */
-#endif
-	return 0;
-}
--- a/arch/sh/src/__shcall.c
+++ /dev/null
@@ -1,5 +0,0 @@
-__attribute__((__visibility__("hidden")))
-int __shcall(void *arg, int (*func)(void *))
-{
-	return func(arg);
-}
--- a/arch/sh/src/__unmapself.c
+++ /dev/null
@@ -1,24 +0,0 @@
-#include "pthread_impl.h"
-
-void __unmapself_sh_mmu(void *, size_t);
-void __unmapself_sh_nommu(void *, size_t);
-
-#if !defined(__SH3__) && !defined(__SH4__)
-#define __unmapself __unmapself_sh_nommu
-#include "dynlink.h"
-#undef CRTJMP
-#define CRTJMP(pc,sp) __asm__ __volatile__( \
-	"mov.l @%0+,r0 ; mov.l @%0,r12 ; jmp @r0 ; mov %1,r15" \
-	: : "r"(pc), "r"(sp) : "r0", "memory" )
-#include "../../../src/thread/__unmapself.c"
-#undef __unmapself
-extern __attribute__((__visibility__("hidden"))) unsigned __sh_nommu;
-#else
-#define __sh_nommu 0
-#endif
-
-void __unmapself(void *base, size_t size)
-{
-	if (__sh_nommu) __unmapself_sh_nommu(base, size);
-	else __unmapself_sh_mmu(base, size);
-}
--- a/arch/sh/src/atomic.c
+++ /dev/null
@@ -1,158 +0,0 @@
-#ifndef __SH4A__
-
-#include "sh_atomic.h"
-#include "atomic.h"
-#include "libc.h"
-
-static inline unsigned mask()
-{
-	unsigned sr;
-	__asm__ __volatile__ ( "\n"
-	"	stc sr,r0 \n"
-	"	mov r0,%0 \n"
-	"	or #0xf0,r0 \n"
-	"	ldc r0,sr \n"
-	: "=&r"(sr) : : "memory", "r0" );
-	return sr;
-}
-
-static inline void unmask(unsigned sr)
-{
-	__asm__ __volatile__ ( "ldc %0,sr" : : "r"(sr) : "memory" );
-}
-
-/* gusa is a hack in the kernel which lets you create a sequence of instructions
- * which will be restarted if the process is preempted in the middle of the
- * sequence. It will do for implementing atomics on non-smp systems. ABI is:
- * r0  = address of first instruction after the atomic sequence
- * r1  = original stack pointer
- * r15 = -1 * length of atomic sequence in bytes
- */
-#define GUSA_CLOBBERS   "r0", "r1", "memory"
-#define GUSA_START(mem,old,nop)    \
-	"	.align 2\n"                \
-	"	mova 1f, r0\n"             \
-	nop                            \
-	"	mov r15, r1\n"             \
-	"	mov #(0f-1f), r15\n"       \
-	"0:	mov.l @" mem ", " old "\n"
-/* the target of mova must be 4 byte aligned, so we may need a nop */
-#define GUSA_START_ODD(mem,old)  GUSA_START(mem,old,"")
-#define GUSA_START_EVEN(mem,old) GUSA_START(mem,old,"\tnop\n")
-#define GUSA_END(mem,new)          \
-	"	mov.l " new ", @" mem "\n" \
-	"1:	mov r1, r15\n"
-
-int __sh_cas(volatile int *p, int t, int s)
-{
-	if (__sh_atomic_model == SH_A_LLSC) return __sh_cas_llsc(p, t, s);
-
-	if (__sh_atomic_model == SH_A_IMASK) {
-		unsigned sr = mask();
-		int old = *p;
-		if (old==t) *p = s;
-		unmask(sr);
-		return old;
-	}
-
-	int old;
-	__asm__ __volatile__(
-		GUSA_START_EVEN("%1", "%0")
-		"	cmp/eq %0, %2\n"
-		"	bf 1f\n"
-		GUSA_END("%1", "%3")
-		: "=&r"(old) : "r"(p), "r"(t), "r"(s) : GUSA_CLOBBERS, "t");
-	return old;
-}
-
-int __sh_swap(volatile int *x, int v)
-{
-	if (__sh_atomic_model == SH_A_LLSC) return __sh_swap_llsc(x, v);
-
-	if (__sh_atomic_model == SH_A_IMASK) {
-		unsigned sr = mask();
-		int old = *x;
-		*x = v;
-		unmask(sr);
-		return old;
-	}
-
-	int old;
-	__asm__ __volatile__(
-		GUSA_START_EVEN("%1", "%0")
-		GUSA_END("%1", "%2")
-		: "=&r"(old) : "r"(x), "r"(v) : GUSA_CLOBBERS);
-	return old;
-}
-
-int __sh_fetch_add(volatile int *x, int v)
-{
-	if (__sh_atomic_model == SH_A_LLSC) return __sh_fetch_add_llsc(x, v);
-
-	if (__sh_atomic_model == SH_A_IMASK) {
-		unsigned sr = mask();
-		int old = *x;
-		*x = old + v;
-		unmask(sr);
-		return old;
-	}
-
-	int old, dummy;
-	__asm__ __volatile__(
-		GUSA_START_EVEN("%2", "%0")
-		"	mov %0, %1\n"
-		"	add %3, %1\n"
-		GUSA_END("%2", "%1")
-		: "=&r"(old), "=&r"(dummy) : "r"(x), "r"(v) : GUSA_CLOBBERS);
-	return old;
-}
-
-void __sh_store(volatile int *p, int x)
-{
-	if (__sh_atomic_model == SH_A_LLSC) return __sh_store_llsc(p, x);
-	__asm__ __volatile__(
-		"	mov.l %1, @%0\n"
-		: : "r"(p), "r"(x) : "memory");
-}
-
-void __sh_and(volatile int *x, int v)
-{
-	if (__sh_atomic_model == SH_A_LLSC) return __sh_and_llsc(x, v);
-
-	if (__sh_atomic_model == SH_A_IMASK) {
-		unsigned sr = mask();
-		int old = *x;
-		*x = old & v;
-		unmask(sr);
-		return;
-	}
-
-	int dummy;
-	__asm__ __volatile__(
-		GUSA_START_ODD("%1", "%0")
-		"	and %2, %0\n"
-		GUSA_END("%1", "%0")
-		: "=&r"(dummy) : "r"(x), "r"(v) : GUSA_CLOBBERS);
-}
-
-void __sh_or(volatile int *x, int v)
-{
-	if (__sh_atomic_model == SH_A_LLSC) return __sh_or_llsc(x, v);
-
-	if (__sh_atomic_model == SH_A_IMASK) {
-		unsigned sr = mask();
-		int old = *x;
-		*x = old | v;
-		unmask(sr);
-		return;
-	}
-
-	int dummy;
-	__asm__ __volatile__(
-		GUSA_START_ODD("%1", "%0")
-		"	or %2, %0\n"
-		GUSA_END("%1", "%0")
-		: "=&r"(dummy) : "r"(x), "r"(v) : GUSA_CLOBBERS);
-}
-
-#endif
--- a/arch/sh/src/sh_atomic.h
+++ /dev/null
@@ -1,15 +0,0 @@
-#ifndef _SH_ATOMIC_H
-#define _SH_ATOMIC_H
-
-#define SH_A_GUSA 0
-#define SH_A_LLSC 1
-#define SH_A_CAS 2
-#if !defined(__SH3__) && !defined(__SH4__)
-#define SH_A_IMASK 3
-#else
-#define SH_A_IMASK -1LL /* unmatchable by unsigned int */
-#endif
-
-extern __attribute__((__visibility__("hidden"))) unsigned __sh_atomic_model;
-
-#endif
--- a/arch/x32/atomic.h
+++ /dev/null
@@ -1,105 +0,0 @@
-#ifndef _INTERNAL_ATOMIC_H
-#define _INTERNAL_ATOMIC_H
-
-#include <stdint.h>
-
-static inline int a_ctz_64(uint64_t x)
-{
-	__asm__( "bsf %1,%0" : "=r"(x) : "r"(x) );
-	return x;
-}
-
-static inline int a_ctz_l(unsigned long x)
-{
-	__asm__( "bsf %1,%0" : "=r"(x) : "r"(x) );
-	return x;
-}
-
-static inline void a_and_64(volatile uint64_t *p, uint64_t v)
-{
-	__asm__( "lock ; and %1, %0"
-			 : "=m"(*p) : "r"(v) : "memory" );
-}
-
-static inline void a_or_64(volatile uint64_t *p, uint64_t v)
-{
-	__asm__( "lock ; or %1, %0"
-			 : "=m"(*p) : "r"(v) : "memory" );
-}
-
-static inline void a_or_l(volatile void *p, long v)
-{
-	__asm__( "lock ; or %1, %0"
-		: "=m"(*(long *)p) : "r"(v) : "memory" );
-}
-
-static inline void *a_cas_p(volatile void *p, void *t, void *s)
-{
-	__asm__( "lock ; cmpxchg %3, %1"
-		: "=a"(t), "=m"(*(long *)p) : "a"(t), "r"(s) : "memory" );
-	return t;
-}
-
-static inline int a_cas(volatile int *p, int t, int s)
-{
-	__asm__( "lock ; cmpxchg %3, %1"
-		: "=a"(t), "=m"(*p) : "a"(t), "r"(s) : "memory" );
-	return t;
-}
-
-static inline void a_or(volatile int *p, int v)
-{
-	__asm__( "lock ; or %1, %0"
-		: "=m"(*p) : "r"(v) : "memory" );
-}
-
-static inline void a_and(volatile int *p, int v)
-{
-	__asm__( "lock ; and %1, %0"
-		: "=m"(*p) : "r"(v) : "memory" );
-}
-
-static inline int a_swap(volatile int *x, int v)
-{
-	__asm__( "xchg %0, %1" : "=r"(v), "=m"(*x) : "0"(v) : "memory" );
-	return v;
-}
-
-static inline int a_fetch_add(volatile int *x, int v)
-{
-	__asm__( "lock ; xadd %0, %1" : "=r"(v), "=m"(*x) : "0"(v) : "memory" );
-	return v;
-}
-
-static inline void a_inc(volatile int *x)
-{
-	__asm__( "lock ; incl %0" : "=m"(*x) : "m"(*x) : "memory" );
-}
-
-static inline void a_dec(volatile int *x)
-{
-	__asm__( "lock ; decl %0" : "=m"(*x) : "m"(*x) : "memory" );
-}
-
-static inline void a_store(volatile int *p, int x)
-{
-	__asm__( "mov %1, %0 ; lock ; orl $0,(%%rsp)" : "=m"(*p) : "r"(x) : "memory" );
-}
-
-static inline void a_spin()
-{
-	__asm__ __volatile__( "pause" : : : "memory" );
-}
-
-static inline void a_barrier()
-{
-	__asm__ __volatile__( "" : : : "memory" );
-}
-
-static inline void a_crash()
-{
-	__asm__ __volatile__( "hlt" : : : "memory" );
-}
-
-
-#endif
--- /dev/null
+++ b/arch/x32/atomic_arch.h
@@ -0,0 +1,114 @@
+#define a_cas a_cas
+static inline int a_cas(volatile int *p, int t, int s)
+{
+	__asm__ __volatile__ (
+		"lock ; cmpxchg %3, %1"
+		: "=a"(t), "=m"(*p) : "a"(t), "r"(s) : "memory" );
+	return t;
+}
+
+#define a_swap a_swap
+static inline int a_swap(volatile int *p, int v)
+{
+	__asm__ __volatile__(
+		"xchg %0, %1"
+		: "=r"(v), "=m"(*p) : "0"(v) : "memory" );
+	return v;
+}
+
+#define a_fetch_add a_fetch_add
+static inline int a_fetch_add(volatile int *p, int v)
+{
+	__asm__ __volatile__(
+		"lock ; xadd %0, %1"
+		: "=r"(v), "=m"(*p) : "0"(v) : "memory" );
+	return v;
+}
+
+#define a_and a_and
+static inline void a_and(volatile int *p, int v)
+{
+	__asm__ __volatile__(
+		"lock ; and %1, %0"
+		: "=m"(*p) : "r"(v) : "memory" );
+}
+
+#define a_or a_or
+static inline void a_or(volatile int *p, int v)
+{
+	__asm__ __volatile__(
+		"lock ; or %1, %0"
+		: "=m"(*p) : "r"(v) : "memory" );
+}
+
+#define a_and_64 a_and_64
+static inline void a_and_64(volatile uint64_t *p, uint64_t v)
+{
+	__asm__ __volatile(
+		"lock ; and %1, %0"
+		 : "=m"(*p) : "r"(v) : "memory" );
+}
+
+#define a_or_64 a_or_64
+static inline void a_or_64(volatile uint64_t *p, uint64_t v)
+{
+	__asm__ __volatile__(
+		"lock ; or %1, %0"
+		 : "=m"(*p) : "r"(v) : "memory" );
+}
+
+#define a_inc a_inc
+static inline void a_inc(volatile int *p)
+{
+	__asm__ __volatile__(
+		"lock ; incl %0"
+		: "=m"(*p) : "m"(*p) : "memory" );
+}
+
+#define a_dec a_dec
+static inline void a_dec(volatile int *p)
+{
+	__asm__ __volatile__(
+		"lock ; decl %0"
+		: "=m"(*p) : "m"(*p) : "memory" );
+}
+
+#define a_store a_store
+static inline void a_store(volatile int *p, int x)
+{
+	__asm__ __volatile__(
+		"mov %1, %0 ; lock ; orl $0,(%%rsp)"
+		: "=m"(*p) : "r"(x) : "memory" );
+}
+
+#define a_barrier a_barrier
+static inline void a_barrier()
+{
+	__asm__ __volatile__( "" : : : "memory" );
+}
+
+#define a_pause a_pause
+static inline void a_spin()
+{
+	__asm__ __volatile__( "pause" : : : "memory" );
+}
+
+#define a_crash a_crash
+static inline void a_crash()
+{
+	__asm__ __volatile__( "hlt" : : : "memory" );
+}
+
+#define a_ctz_64 a_ctz_64
+static inline int a_ctz_64(uint64_t x)
+{
+	__asm__( "bsf %1,%0" : "=r"(x) : "r"(x) );
+	return x;
+}
+
+#define a_ctz_l a_ctz_l
+static inline int a_ctz_l(unsigned long x)
+{
+	__asm__( "bsf %1,%0" : "=r"(x) : "r"(x) );
+	return x;
+}
--- a/arch/x32/bits/errno.h
+++ /dev/null
@@ -1,134 +0,0 @@
-#define EPERM            1
-#define ENOENT           2
-#define ESRCH            3
-#define EINTR            4
-#define EIO              5
-#define ENXIO            6
-#define E2BIG            7
-#define ENOEXEC          8
-#define EBADF            9
-#define ECHILD          10
-#define EAGAIN          11
-#define ENOMEM          12
-#define EACCES          13
-#define EFAULT          14
-#define ENOTBLK         15
-#define EBUSY           16
-#define EEXIST          17
-#define EXDEV           18
-#define ENODEV          19
-#define ENOTDIR         20
-#define EISDIR          21
-#define EINVAL          22
-#define ENFILE          23
-#define EMFILE          24
-#define ENOTTY          25
-#define ETXTBSY         26
-#define EFBIG           27
-#define ENOSPC          28
-#define ESPIPE          29
-#define EROFS           30
-#define EMLINK          31
-#define EPIPE           32
-#define EDOM            33
-#define ERANGE          34
-#define EDEADLK         35
-#define ENAMETOOLONG    36
-#define ENOLCK          37
-#define ENOSYS          38
-#define ENOTEMPTY       39
-#define ELOOP           40
-#define EWOULDBLOCK     EAGAIN
-#define ENOMSG          42
-#define EIDRM           43
-#define ECHRNG          44
-#define EL2NSYNC        45
-#define EL3HLT          46
-#define EL3RST          47
-#define ELNRNG          48
-#define EUNATCH         49
-#define ENOCSI          50
-#define EL2HLT          51
-#define EBADE           52
-#define EBADR           53
-#define EXFULL          54
-#define ENOANO          55
-#define EBADRQC         56
-#define EBADSLT         57
-#define EDEADLOCK       EDEADLK
-#define EBFONT          59
-#define ENOSTR          60
-#define ENODATA         61
-#define ETIME           62
-#define ENOSR           63
-#define ENONET          64
-#define ENOPKG          65
-#define EREMOTE         66
-#define ENOLINK         67
-#define EADV            68
-#define ESRMNT          69
-#define ECOMM           70
-#define EPROTO          71
-#define EMULTIHOP       72
-#define EDOTDOT         73
-#define EBADMSG         74
-#define EOVERFLOW       75
-#define ENOTUNIQ        76
-#define EBADFD          77
-#define EREMCHG         78
-#define ELIBACC         79
-#define ELIBBAD         80
-#define ELIBSCN         81
-#define ELIBMAX         82
-#define ELIBEXEC        83
-#define EILSEQ          84
-#define ERESTART        85
-#define ESTRPIPE        86
-#define EUSERS          87
-#define ENOTSOCK        88
-#define EDESTADDRREQ    89
-#define EMSGSIZE        90
-#define EPROTOTYPE      91
-#define ENOPROTOOPT     92
-#define EPROTONOSUPPORT 93
-#define ESOCKTNOSUPPORT 94
-#define EOPNOTSUPP      95
-#define ENOTSUP         EOPNOTSUPP
-#define EPFNOSUPPORT    96
-#define EAFNOSUPPORT    97
-#define EADDRINUSE      98
-#define EADDRNOTAVAIL   99
-#define ENETDOWN        100
-#define ENETUNREACH     101
-#define ENETRESET       102
-#define ECONNABORTED    103
-#define ECONNRESET      104
-#define ENOBUFS         105
-#define EISCONN         106
-#define ENOTCONN        107
-#define ESHUTDOWN       108
-#define ETOOMANYREFS    109
-#define ETIMEDOUT       110
-#define ECONNREFUSED    111
-#define EHOSTDOWN       112
-#define EHOSTUNREACH    113
-#define EALREADY        114
-#define EINPROGRESS     115
-#define ESTALE          116
-#define EUCLEAN         117
-#define ENOTNAM         118
-#define ENAVAIL         119
-#define EISNAM          120
-#define EREMOTEIO       121
-#define EDQUOT          122
-#define ENOMEDIUM       123
-#define EMEDIUMTYPE     124
-#define ECANCELED       125
-#define ENOKEY          126
-#define EKEYEXPIRED     127
-#define EKEYREVOKED     128
-#define EKEYREJECTED    129
-#define EOWNERDEAD      130
-#define ENOTRECOVERABLE 131
-#define ERFKILL         132
-#define EHWPOISON       133
--- a/arch/x32/bits/mman.h
+++ b/arch/x32/bits/mman.h
@@ -38,6 +38,7 @@
 
 #define MCL_CURRENT     1
 #define MCL_FUTURE      2
+#define MCL_ONFAULT     4
 
 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
 #define MADV_NORMAL      0
--- a/arch/x32/bits/sem.h
+++ /dev/null
@@ -1,16 +0,0 @@
-struct semid_ds {
-	struct ipc_perm sem_perm;
-	time_t sem_otime;
-	time_t __unused1;
-	time_t sem_ctime;
-	time_t __unused2;
-#if __BYTE_ORDER == __LITTLE_ENDIAN
-	unsigned short sem_nsems;
-	char __sem_nsems_pad[sizeof(time_t)-sizeof(short)];
-#else
-	char __sem_nsems_pad[sizeof(time_t)-sizeof(short)];
-	unsigned short sem_nsems;
-#endif
-	time_t __unused3;
-	time_t __unused4;
-};
--- a/arch/x32/bits/stdarg.h
+++ /dev/null
@@ -1,4 +0,0 @@
-#define va_start(v,l)   __builtin_va_start(v,l)
-#define va_end(v)       __builtin_va_end(v)
-#define va_arg(v,l)     __builtin_va_arg(v,l)
-#define va_copy(d,s)    __builtin_va_copy(d,s)
--- a/arch/x32/bits/syscall.h
+++ b/arch/x32/bits/syscall.h
@@ -277,6 +277,9 @@
 #define __NR_memfd_create (__X32_SYSCALL_BIT + 319)
 #define __NR_kexec_file_load (__X32_SYSCALL_BIT + 320)
 #define __NR_bpf (__X32_SYSCALL_BIT + 321)
+#define __NR_userfaultfd (__X32_SYSCALL_BIT + 323)
+#define __NR_membarrier (__X32_SYSCALL_BIT + 324)
+#define __NR_mlock2 (__X32_SYSCALL_BIT + 325)
 
 #define __NR_rt_sigaction (__X32_SYSCALL_BIT + 512)
 #define __NR_rt_sigreturn (__X32_SYSCALL_BIT + 513)
@@ -607,6 +610,9 @@
 #define SYS_memfd_create __NR_memfd_create
 #define SYS_kexec_file_load __NR_kexec_file_load
 #define SYS_bpf __NR_bpf
+#define SYS_userfaultfd __NR_userfaultfd
+#define SYS_membarrier __NR_membarrier
+#define SYS_mlock2 __NR_mlock2
 
 
 #define SYS_rt_sigaction __NR_rt_sigaction
--- a/arch/x32/bits/termios.h
+++ /dev/null
@@ -1,160 +0,0 @@
-struct termios
-{
-	tcflag_t c_iflag;
-	tcflag_t c_oflag;
-	tcflag_t c_cflag;
-	tcflag_t c_lflag;
-	cc_t c_line;
-	cc_t c_cc[NCCS];
-	speed_t __c_ispeed;
-	speed_t __c_ospeed;
-};
-
-#define VINTR     0
-#define VQUIT     1
-#define VERASE    2
-#define VKILL     3
-#define VEOF      4
-#define VTIME     5
-#define VMIN      6
-#define VSWTC     7
-#define VSTART    8
-#define VSTOP     9
-#define VSUSP    10
-#define VEOL     11
-#define VREPRINT 12
-#define VDISCARD 13
-#define VWERASE  14
-#define VLNEXT   15
-#define VEOL2    16
-
-#define IGNBRK  0000001
-#define BRKINT  0000002
-#define IGNPAR  0000004
-#define PARMRK  0000010
-#define INPCK   0000020
-#define ISTRIP  0000040
-#define INLCR   0000100
-#define IGNCR   0000200
-#define ICRNL   0000400
-#define IUCLC   0001000
-#define IXON    0002000
-#define IXANY   0004000
-#define IXOFF   0010000
-#define IMAXBEL 0020000
-#define IUTF8   0040000
-
-#define OPOST  0000001
-#define OLCUC  0000002
-#define ONLCR  0000004
-#define OCRNL  0000010
-#define ONOCR  0000020
-#define ONLRET 0000040
-#define OFILL  0000100
-#define OFDEL  0000200
-#define NLDLY  0000400
-#define NL0    0000000
-#define NL1    0000400
-#define CRDLY  0003000
-#define CR0    0000000
-#define CR1    0001000
-#define CR2    0002000
-#define CR3    0003000
-#define TABDLY 0014000
-#define TAB0   0000000
-#define TAB1   0004000
-#define TAB2   0010000
-#define TAB3   0014000
-#define BSDLY  0020000
-#define BS0    0000000
-#define BS1    0020000
-#define FFDLY  0100000
-#define FF0    0000000
-#define FF1    0100000
-
-#define VTDLY  0040000
-#define VT0    0000000
-#define VT1    0040000
-
-#define B0       0000000
-#define B50      0000001
-#define B75      0000002
-#define B110     0000003
-#define B134     0000004
-#define B150     0000005
-#define B200     0000006
-#define B300     0000007
-#define B600     0000010
-#define B1200    0000011
-#define B1800    0000012
-#define B2400    0000013
-#define B4800    0000014
-#define B9600    0000015
-#define B19200   0000016
-#define B38400   0000017
-
-#define B57600   0010001
-#define B115200  0010002
-#define B230400  0010003
-#define B460800  0010004
-#define B500000  0010005
-#define B576000  0010006
-#define B921600  0010007
-#define B1000000 0010010
-#define B1152000 0010011
-#define B1500000 0010012
-#define B2000000 0010013
-#define B2500000 0010014
-#define B3000000 0010015
-#define B3500000 0010016
-#define B4000000 0010017
-
-#define CBAUD    0010017
-
-#define CSIZE  0000060
-#define CS5    0000000
-#define CS6    0000020
-#define CS7    0000040
-#define CS8    0000060
-#define CSTOPB 0000100
-#define CREAD  0000200
-#define PARENB 0000400
-#define PARODD 0001000
-#define HUPCL  0002000
-#define CLOCAL 0004000
-
-#define ISIG   0000001
-#define ICANON 0000002
-#define ECHO   0000010
-#define ECHOE  0000020
-#define ECHOK  0000040
-#define ECHONL 0000100
-#define NOFLSH 0000200
-#define TOSTOP 0000400
-#define IEXTEN 0100000
-
-#define ECHOCTL 0001000
-#define ECHOPRT 0002000
-#define ECHOKE 0004000
-#define FLUSHO 0010000
-#define PENDIN 0040000
-
-#define TCOOFF 0
-#define TCOON  1
-#define TCIOFF 2
-#define TCION  3
-
-#define TCIFLUSH  0
-#define TCOFLUSH  1
-#define TCIOFLUSH 2
-
-#define TCSANOW   0
-#define TCSADRAIN 1
-#define TCSAFLUSH 2
-
-#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
-#define CBAUDEX 0010000
-#define CRTSCTS  020000000000
-#define EXTPROC 0200000
-#define XTABS  0014000
-#endif
--- a/arch/x32/pthread_arch.h
+++ b/arch/x32/pthread_arch.h
@@ -7,6 +7,6 @@ static inline struct pthread *__pthread_
 
 #define TP_ADJ(p) (p)
 
-#define CANCEL_REG_IP 32
+#define MC_PC gregs[REG_RIP]
 
 #define CANARY canary2
--- a/arch/x32/src/syscall_cp_fixup.c
+++ /dev/null
@@ -1,42 +0,0 @@
-#include <sys/syscall.h>
-
-#ifdef SHARED
-__attribute__((__visibility__("hidden")))
-#endif
-long __syscall_cp_internal(volatile void*, long long, long long, long long, long long,
-                             long long, long long, long long);
-
-struct __timespec { long long tv_sec; long tv_nsec; };
-struct __timespec_kernel { long long tv_sec; long long tv_nsec; };
-#define __tsc(X) ((struct __timespec*)(unsigned long)(X))
-#define __fixup(X) do { if(X) { \
-	ts->tv_sec = __tsc(X)->tv_sec; \
-	ts->tv_nsec = __tsc(X)->tv_nsec; \
-	(X) = (unsigned long)ts; } } while(0)
-
-#ifdef SHARED
-__attribute__((__visibility__("hidden")))
-#endif
-long __syscall_cp_asm (volatile void * foo, long long n, long long a1, long long a2, long long a3,
-	                     long long a4, long long a5, long long a6)
-{
-	struct __timespec_kernel ts[1];
-	switch (n) {
-	case SYS_mq_timedsend: case SYS_mq_timedreceive: case SYS_pselect6:
-		__fixup(a5);
-		break;
-	case SYS_futex:
-		if((a2 & (~128 /* FUTEX_PRIVATE_FLAG */)) == 0 /* FUTEX_WAIT */)
-			__fixup(a4);
-		break;
-	case SYS_clock_nanosleep:
-	case SYS_rt_sigtimedwait: case SYS_ppoll:
-		__fixup(a3);
-		break;
-	case SYS_nanosleep:
-		__fixup(a1);
-		break;
-	}
-	return __syscall_cp_internal(foo, n, a1, a2, a3, a4, a5, a6);
-}
-
--- a/arch/x32/src/sysinfo.c
+++ /dev/null
@@ -1,50 +0,0 @@
-#include <sys/sysinfo.h>
-#include "syscall.h"
-#include "libc.h"
-
-#define klong long long
-#define kulong unsigned long long
-
-struct kernel_sysinfo {
-	klong uptime;
-	kulong loads[3];
-	kulong totalram;
-	kulong freeram;
-	kulong sharedram;
-	kulong bufferram;
-	kulong totalswap;
-	kulong freeswap;
-	short procs;
-	short pad;
-	kulong totalhigh;
-	kulong freehigh;
-	unsigned mem_unit;
-};
-
-int __lsysinfo(struct sysinfo *info)
-{
-	struct kernel_sysinfo tmp;
-	int ret = syscall(SYS_sysinfo, &tmp);
-	if(ret == -1) return ret;
-	info->uptime = tmp.uptime;
-	info->loads[0] = tmp.loads[0];
-	info->loads[1] = tmp.loads[1];
-	info->loads[2] = tmp.loads[2];
-	kulong shifts;
-	kulong max = tmp.totalram | tmp.totalswap;
-	__asm__("bsr %1,%0" : "=r"(shifts) : "r"(max));
-	shifts = shifts >= 32 ? shifts - 31 : 0;
-	info->totalram = tmp.totalram >> shifts;
-	info->freeram = tmp.freeram >> shifts;
-	info->sharedram = tmp.sharedram >> shifts;
-	info->bufferram = tmp.bufferram >> shifts;
-	info->totalswap = tmp.totalswap >> shifts;
-	info->freeswap = tmp.freeswap >> shifts;
-	info->procs = tmp.procs ;
-	info->totalhigh = tmp.totalhigh >> shifts;
-	info->freehigh = tmp.freehigh >> shifts;
-	info->mem_unit = (tmp.mem_unit ? tmp.mem_unit : 1) << shifts;
-	return ret;
-}
-
-weak_alias(__lsysinfo, sysinfo);
--- a/arch/x86_64/atomic.h
+++ /dev/null
@@ -1,105 +0,0 @@
-#ifndef _INTERNAL_ATOMIC_H
-#define _INTERNAL_ATOMIC_H
-
-#include <stdint.h>
-
-static inline int a_ctz_64(uint64_t x)
-{
-	__asm__( "bsf %1,%0" : "=r"(x) : "r"(x) );
-	return x;
-}
-
-static inline int a_ctz_l(unsigned long x)
-{
-	__asm__( "bsf %1,%0" : "=r"(x) : "r"(x) );
-	return x;
-}
-
-static inline void a_and_64(volatile uint64_t *p, uint64_t v)
-{
-	__asm__( "lock ; and %1, %0"
-			 : "=m"(*p) : "r"(v) : "memory" );
-}
-
-static inline void a_or_64(volatile uint64_t *p, uint64_t v)
-{
-	__asm__( "lock ; or %1, %0"
-			 : "=m"(*p) : "r"(v) : "memory" );
-}
-
-static inline void a_or_l(volatile void *p, long v)
-{
-	__asm__( "lock ; or %1, %0"
-		: "=m"(*(long *)p) : "r"(v) : "memory" );
-}
-
-static inline void *a_cas_p(volatile void *p, void *t, void *s)
-{
-	__asm__( "lock ; cmpxchg %3, %1"
-		: "=a"(t), "=m"(*(long *)p) : "a"(t), "r"(s) : "memory" );
-	return t;
-}
-
-static inline int a_cas(volatile int *p, int t, int s)
-{
-	__asm__( "lock ; cmpxchg %3, %1"
-		: "=a"(t), "=m"(*p) : "a"(t), "r"(s) : "memory" );
-	return t;
-}
-
-static inline void a_or(volatile int *p, int v)
-{
-	__asm__( "lock ; or %1, %0"
-		: "=m"(*p) : "r"(v) : "memory" );
-}
-
-static inline void a_and(volatile int *p, int v)
-{
-	__asm__( "lock ; and %1, %0"
-		: "=m"(*p) : "r"(v) : "memory" );
-}
-
-static inline int a_swap(volatile int *x, int v)
-{
-	__asm__( "xchg %0, %1" : "=r"(v), "=m"(*x) : "0"(v) : "memory" );
-	return v;
-}
-
-static inline int a_fetch_add(volatile int *x, int v)
-{
-	__asm__( "lock ; xadd %0, %1" : "=r"(v), "=m"(*x) : "0"(v) : "memory" );
-	return v;
-}
-
-static inline void a_inc(volatile int *x)
-{
-	__asm__( "lock ; incl %0" : "=m"(*x) : "m"(*x) : "memory" );
-}
-
-static inline void a_dec(volatile int *x)
-{
-	__asm__( "lock ; decl %0" : "=m"(*x) : "m"(*x) : "memory" );
-}
-
-static inline void a_store(volatile int *p, int x)
-{
-	__asm__( "mov %1, %0 ; lock ; orl $0,(%%rsp)" : "=m"(*p) : "r"(x) : "memory" );
-}
-
-static inline void a_spin()
-{
-	__asm__ __volatile__( "pause" : : : "memory" );
-}
-
-static inline void a_barrier()
-{
-	__asm__ __volatile__( "" : : : "memory" );
-}
-
-static inline void a_crash()
-{
-	__asm__ __volatile__( "hlt" : : : "memory" );
-}
-
-
-#endif
--- /dev/null
+++ b/arch/x86_64/atomic_arch.h
@@ -0,0 +1,116 @@
+#define a_cas a_cas
+static inline int a_cas(volatile int *p, int t, int s)
+{
+	__asm__ __volatile__ (
+		"lock ; cmpxchg %3, %1"
+		: "=a"(t), "=m"(*p) : "a"(t), "r"(s) : "memory" );
+	return t;
+}
+
+#define a_cas_p a_cas_p
+static inline void *a_cas_p(volatile void *p, void *t, void *s)
+{
+	__asm__( "lock ; cmpxchg %3, %1"
+		: "=a"(t), "=m"(*(void *volatile *)p)
+		: "a"(t), "r"(s) : "memory" );
+	return t;
+}
+
+#define a_swap a_swap
+static inline int a_swap(volatile int *p, int v)
+{
+	__asm__ __volatile__(
+		"xchg %0, %1"
+		: "=r"(v), "=m"(*p) : "0"(v) : "memory" );
+	return v;
+}
+
+#define a_fetch_add a_fetch_add
+static inline int a_fetch_add(volatile int *p, int v)
+{
+	__asm__ __volatile__(
+		"lock ; xadd %0, %1"
+		: "=r"(v), "=m"(*p) : "0"(v) : "memory" );
+	return v;
+}
+
+#define a_and a_and
+static inline void a_and(volatile int *p, int v)
+{
+	__asm__ __volatile__(
+		"lock ; and %1, %0"
+		: "=m"(*p) : "r"(v) : "memory" );
+}
+
+#define a_or a_or
+static inline void a_or(volatile int *p, int v)
+{
+	__asm__ __volatile__(
+		"lock ; or %1, %0"
+		: "=m"(*p) : "r"(v) : "memory" );
+}
+
+#define a_and_64 a_and_64
+static inline void a_and_64(volatile uint64_t *p, uint64_t v)
+{
+	__asm__ __volatile(
+		"lock ; and %1, %0"
+		 : "=m"(*p) : "r"(v) : "memory" );
+}
+
+#define a_or_64 a_or_64
+static inline void a_or_64(volatile uint64_t *p, uint64_t v)
+{
+	__asm__ __volatile__(
+		"lock ; or %1, %0"
+		 : "=m"(*p) : "r"(v) : "memory" );
+}
+
+#define a_inc a_inc
+static inline void a_inc(volatile int *p)
+{
+	__asm__ __volatile__(
+		"lock ; incl %0"
+		: "=m"(*p) : "m"(*p) : "memory" );
+}
+
+#define a_dec a_dec
+static inline void a_dec(volatile int *p)
+{
+	__asm__ __volatile__(
+		"lock ; decl %0"
+		: "=m"(*p) : "m"(*p) : "memory" );
+}
+
+#define a_store a_store
+static inline void a_store(volatile int *p, int x)
+{
+	__asm__ __volatile__(
+		"mov %1, %0 ; lock ; orl $0,(%%rsp)"
+		: "=m"(*p) : "r"(x) : "memory" );
+}
+
+#define a_barrier a_barrier
+static inline void a_barrier()
+{
+	__asm__ __volatile__( "" : : : "memory" );
+}
+
+#define a_pause a_pause
+static inline void a_spin()
+{
+	__asm__ __volatile__( "pause" : : : "memory" );
+}
+
+#define a_crash a_crash
+static inline void a_crash()
+{
+	__asm__ __volatile__( "hlt" : : : "memory" );
+}
+
+#define a_ctz_64 a_ctz_64
+static inline int a_ctz_64(uint64_t x)
+{
+	__asm__( "bsf %1,%0" : "=r"(x) : "r"(x) );
+	return x;
+}
--- a/arch/x86_64/bits/errno.h
+++ /dev/null
@@ -1,134 +0,0 @@
-#define EPERM            1
-#define ENOENT           2
-#define ESRCH            3
-#define EINTR            4
-#define EIO              5
-#define ENXIO            6
-#define E2BIG            7
-#define ENOEXEC          8
-#define EBADF            9
-#define ECHILD          10
-#define EAGAIN          11
-#define ENOMEM          12
-#define EACCES          13
-#define EFAULT          14
-#define ENOTBLK         15
-#define EBUSY           16
-#define EEXIST          17
-#define EXDEV           18
-#define ENODEV          19
-#define ENOTDIR         20
-#define EISDIR          21
-#define EINVAL          22
-#define ENFILE          23
-#define EMFILE          24
-#define ENOTTY          25
-#define ETXTBSY         26
-#define EFBIG           27
-#define ENOSPC          28
-#define ESPIPE          29
-#define EROFS           30
-#define EMLINK          31
-#define EPIPE           32
-#define EDOM            33
-#define ERANGE          34
-#define EDEADLK         35
-#define ENAMETOOLONG    36
-#define ENOLCK          37
-#define ENOSYS          38
-#define ENOTEMPTY       39
-#define ELOOP           40
-#define EWOULDBLOCK     EAGAIN
-#define ENOMSG          42
-#define EIDRM           43
-#define ECHRNG          44
-#define EL2NSYNC        45
-#define EL3HLT          46
-#define EL3RST          47
-#define ELNRNG          48
-#define EUNATCH         49
-#define ENOCSI          50
-#define EL2HLT          51
-#define EBADE           52
-#define EBADR           53
-#define EXFULL          54
-#define ENOANO          55
-#define EBADRQC         56
-#define EBADSLT         57
-#define EDEADLOCK       EDEADLK
-#define EBFONT          59
-#define ENOSTR          60
-#define ENODATA         61
-#define ETIME           62
-#define ENOSR           63
-#define ENONET          64
-#define ENOPKG          65
-#define EREMOTE         66
-#define ENOLINK         67
-#define EADV            68
-#define ESRMNT          69
-#define ECOMM           70
-#define EPROTO          71
-#define EMULTIHOP       72
-#define EDOTDOT         73
-#define EBADMSG         74
-#define EOVERFLOW       75
-#define ENOTUNIQ        76
-#define EBADFD          77
-#define EREMCHG         78
-#define ELIBACC         79
-#define ELIBBAD         80
-#define ELIBSCN         81
-#define ELIBMAX         82
-#define ELIBEXEC        83
-#define EILSEQ          84
-#define ERESTART        85
-#define ESTRPIPE        86
-#define EUSERS          87
-#define ENOTSOCK        88
-#define EDESTADDRREQ    89
-#define EMSGSIZE        90
-#define EPROTOTYPE      91
-#define ENOPROTOOPT     92
-#define EPROTONOSUPPORT 93
-#define ESOCKTNOSUPPORT 94
-#define EOPNOTSUPP      95
-#define ENOTSUP         EOPNOTSUPP
-#define EPFNOSUPPORT    96
-#define EAFNOSUPPORT    97
-#define EADDRINUSE      98
-#define EADDRNOTAVAIL   99
-#define ENETDOWN        100
-#define ENETUNREACH     101
-#define ENETRESET       102
-#define ECONNABORTED    103
-#define ECONNRESET      104
-#define ENOBUFS         105
-#define EISCONN         106
-#define ENOTCONN        107
-#define ESHUTDOWN       108
-#define ETOOMANYREFS    109
-#define ETIMEDOUT       110
-#define ECONNREFUSED    111
-#define EHOSTDOWN       112
-#define EHOSTUNREACH    113
-#define EALREADY        114
-#define EINPROGRESS     115
-#define ESTALE          116
-#define EUCLEAN         117
-#define ENOTNAM         118
-#define ENAVAIL         119
-#define EISNAM          120
-#define EREMOTEIO       121
-#define EDQUOT          122
-#define ENOMEDIUM       123
-#define EMEDIUMTYPE     124
-#define ECANCELED       125
-#define ENOKEY          126
-#define EKEYEXPIRED     127
-#define EKEYREVOKED     128
-#define EKEYREJECTED    129
-#define EOWNERDEAD      130
-#define ENOTRECOVERABLE 131
-#define ERFKILL         132
-#define EHWPOISON       133
--- a/arch/x86_64/bits/mman.h
+++ b/arch/x86_64/bits/mman.h
@@ -38,6 +38,7 @@
 
 #define MCL_CURRENT     1
 #define MCL_FUTURE      2
+#define MCL_ONFAULT     4
 
 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
 #define MADV_NORMAL      0
--- a/arch/x86_64/bits/sem.h
+++ /dev/null
@@ -1,16 +0,0 @@
-struct semid_ds {
-	struct ipc_perm sem_perm;
-	time_t sem_otime;
-	time_t __unused1;
-	time_t sem_ctime;
-	time_t __unused2;
-#if __BYTE_ORDER == __LITTLE_ENDIAN
-	unsigned short sem_nsems;
-	char __sem_nsems_pad[sizeof(time_t)-sizeof(short)];
-#else
-	char __sem_nsems_pad[sizeof(time_t)-sizeof(short)];
-	unsigned short sem_nsems;
-#endif
-	time_t __unused3;
-	time_t __unused4;
-};
--- a/arch/x86_64/bits/statfs.h
+++ /dev/null
@@ -1,7 +0,0 @@
-struct statfs {
-	unsigned long f_type, f_bsize;
-	fsblkcnt_t f_blocks, f_bfree, f_bavail;
-	fsfilcnt_t f_files, f_ffree;
-	fsid_t f_fsid;
-	unsigned long f_namelen, f_frsize, f_flags, f_spare[4];
-};
--- a/arch/x86_64/bits/stdarg.h
+++ /dev/null
@@ -1,4 +0,0 @@
-#define va_start(v,l)   __builtin_va_start(v,l)
-#define va_end(v)       __builtin_va_end(v)
-#define va_arg(v,l)     __builtin_va_arg(v,l)
-#define va_copy(d,s)    __builtin_va_copy(d,s)
--- a/arch/x86_64/bits/syscall.h
+++ b/arch/x86_64/bits/syscall.h
@@ -321,6 +321,9 @@
 #define __NR_kexec_file_load			320
 #define __NR_bpf				321
 #define __NR_execveat				322
+#define __NR_userfaultfd			323
+#define __NR_membarrier				324
+#define __NR_mlock2				325
 
 
 
@@ -649,3 +652,6 @@
 #define SYS_kexec_file_load			320
 #define SYS_bpf					321
 #define SYS_execveat				322
+#define SYS_userfaultfd				323
+#define SYS_membarrier				324
+#define SYS_mlock2				325
--- a/arch/x86_64/bits/termios.h
+++ /dev/null
@@ -1,160 +0,0 @@
-struct termios
-{
-	tcflag_t c_iflag;
-	tcflag_t c_oflag;
-	tcflag_t c_cflag;
-	tcflag_t c_lflag;
-	cc_t c_line;
-	cc_t c_cc[NCCS];
-	speed_t __c_ispeed;
-	speed_t __c_ospeed;
-};
-
-#define VINTR     0
-#define VQUIT     1
-#define VERASE    2
-#define VKILL     3
-#define VEOF      4
-#define VTIME     5
-#define VMIN      6
-#define VSWTC     7
-#define VSTART    8
-#define VSTOP     9
-#define VSUSP    10
-#define VEOL     11
-#define VREPRINT 12
-#define VDISCARD 13
-#define VWERASE  14
-#define VLNEXT   15
-#define VEOL2    16
-
-#define IGNBRK  0000001
-#define BRKINT  0000002
-#define IGNPAR  0000004
-#define PARMRK  0000010
-#define INPCK   0000020
-#define ISTRIP  0000040
-#define INLCR   0000100
-#define IGNCR   0000200
-#define ICRNL   0000400
-#define IUCLC   0001000
-#define IXON    0002000
-#define IXANY   0004000
-#define IXOFF   0010000
-#define IMAXBEL 0020000
-#define IUTF8   0040000
-
-#define OPOST  0000001
-#define OLCUC  0000002
-#define ONLCR  0000004
-#define OCRNL  0000010
-#define ONOCR  0000020
-#define ONLRET 0000040
-#define OFILL  0000100
-#define OFDEL  0000200
-#define NLDLY  0000400
-#define NL0    0000000
-#define NL1    0000400
-#define CRDLY  0003000
-#define CR0    0000000
-#define CR1    0001000
-#define CR2    0002000
-#define CR3    0003000
-#define TABDLY 0014000
-#define TAB0   0000000
-#define TAB1   0004000
-#define TAB2   0010000
-#define TAB3   0014000
-#define BSDLY  0020000
-#define BS0    0000000
-#define BS1    0020000
-#define FFDLY  0100000
-#define FF0    0000000
-#define FF1    0100000
-
-#define VTDLY  0040000
-#define VT0    0000000
-#define VT1    0040000
-
-#define B0       0000000
-#define B50      0000001
-#define B75      0000002
-#define B110     0000003
-#define B134     0000004
-#define B150     0000005
-#define B200     0000006
-#define B300     0000007
-#define B600     0000010
-#define B1200    0000011
-#define B1800    0000012
-#define B2400    0000013
-#define B4800    0000014
-#define B9600    0000015
-#define B19200   0000016
-#define B38400   0000017
-
-#define B57600   0010001
-#define B115200  0010002
-#define B230400  0010003
-#define B460800  0010004
-#define B500000  0010005
-#define B576000  0010006
-#define B921600  0010007
-#define B1000000 0010010
-#define B1152000 0010011
-#define B1500000 0010012
-#define B2000000 0010013
-#define B2500000 0010014
-#define B3000000 0010015
-#define B3500000 0010016
-#define B4000000 0010017
-
-#define CBAUD    0010017
-
-#define CSIZE  0000060
-#define CS5    0000000
-#define CS6    0000020
-#define CS7    0000040
-#define CS8    0000060
-#define CSTOPB 0000100
-#define CREAD  0000200
-#define PARENB 0000400
-#define PARODD 0001000
-#define HUPCL  0002000
-#define CLOCAL 0004000
-
-#define ISIG   0000001
-#define ICANON 0000002
-#define ECHO   0000010
-#define ECHOE  0000020
-#define ECHOK  0000040
-#define ECHONL 0000100
-#define NOFLSH 0000200
-#define TOSTOP 0000400
-#define IEXTEN 0100000
-
-#define ECHOCTL 0001000
-#define ECHOPRT 0002000
-#define ECHOKE 0004000
-#define FLUSHO 0010000
-#define PENDIN 0040000
-
-#define TCOOFF 0
-#define TCOON  1
-#define TCIOFF 2
-#define TCION  3
-
-#define TCIFLUSH  0
-#define TCOFLUSH  1
-#define TCIOFLUSH 2
-
-#define TCSANOW   0
-#define TCSADRAIN 1
-#define TCSAFLUSH 2
-
-#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
-#define CBAUDEX 0010000
-#define CRTSCTS  020000000000
-#define EXTPROC 0200000
-#define XTABS  0014000
-#endif
--- a/arch/x86_64/pthread_arch.h
+++ b/arch/x86_64/pthread_arch.h
@@ -7,4 +7,4 @@ static inline struct pthread *__pthread_
 
 #define TP_ADJ(p) (p)
 
-#define CANCEL_REG_IP 16
+#define MC_PC gregs[REG_RIP]
--- a/configure
+++ b/configure
@@ -9,6 +9,9 @@ VAR=VALUE.  See below for descriptions o
 
 Defaults for the options are specified in brackets.
 
+Configuration:
+  --srcdir=DIR            source directory [detected]
+
 Installation directories:
   --prefix=PREFIX         main installation prefix [/usr/local/musl]
   --exec-prefix=EPREFIX   installation prefix for executable files [PREFIX]
@@ -117,6 +120,7 @@ CFLAGS_TRY=
 LDFLAGS_AUTO=
 LDFLAGS_TRY=
 OPTIMIZE_GLOBS=
+srcdir=
 prefix=/usr/local/musl
 exec_prefix='$(prefix)'
 bindir='$(exec_prefix)/bin'
@@ -139,6 +143,7 @@ clang_wrapper=no
 for arg ; do
 case "$arg" in
 --help) usage ;;
+--srcdir=*) srcdir=${arg#*=} ;;
 --prefix=*) prefix=${arg#*=} ;;
 --exec-prefix=*) exec_prefix=${arg#*=} ;;
 --bindir=*) bindir=${arg#*=} ;;
@@ -179,11 +184,23 @@ LIBCC=*) LIBCC=${arg#*=} ;;
 esac
 done
 
-for i in prefix exec_prefix bindir libdir includedir syslibdir ; do
+for i in srcdir prefix exec_prefix bindir libdir includedir syslibdir ; do
 stripdir $i
 done
 
 #
+# Get the source dir for out-of-tree builds
+#
+if test -z "$srcdir" ; then
+srcdir="${0%/configure}"
+stripdir srcdir
+fi
+abs_builddir="$(pwd)" || fail "$0: cannot determine working directory"
+abs_srcdir="$(cd $srcdir && pwd)" || fail "$0: invalid source directory $srcdir"
+test "$abs_srcdir" = "$abs_builddir" && srcdir=.
+test "$srcdir" != "." -a -f Makefile -a ! -h Makefile && fail "$0: Makefile already exists in the working directory"
+
+#
 # Get a temp filename we can use
 #
 i=0
@@ -263,11 +280,11 @@ fi
 fi
 
 if test "$gcc_wrapper" = yes ; then
-tools="$tools tools/musl-gcc"
+tools="$tools obj/musl-gcc"
 tool_libs="$tool_libs lib/musl-gcc.specs"
 fi
 if test "$clang_wrapper" = yes ; then
-tools="$tools tools/musl-clang tools/ld.musl-clang"
+tools="$tools obj/musl-clang obj/ld.musl-clang"
 fi
 
 #
@@ -321,7 +338,7 @@ __attribute__((__may_alias__))
 #endif
 x;
 EOF
-if $CC $CFLAGS_C99FSE -I./arch/$ARCH -I./include $CPPFLAGS $CFLAGS \
+if $CC $CFLAGS_C99FSE $CPPFLAGS $CFLAGS \
   -c -o /dev/null "$tmpc" >/dev/null 2>&1 ; then
 printf "no\n"
 else
@@ -330,6 +347,13 @@ CFLAGS_C99FSE="$CFLAGS_C99FSE -D__may_al
 fi
 
 #
+# The GNU toolchain defaults to assuming unmarked files need an
+# executable stack, potentially exposing vulnerabilities in programs
+# linked with such object files. Fix this.
+#
+tryflag CFLAGS_C99FSE -Wa,--noexecstack
+
+#
 # Check for options to disable stack protector, which needs to be
 # disabled for a few early-bootstrap translation units. If not found,
 # this is not an error; we assume the toolchain does not do ssp.
@@ -430,11 +454,15 @@ tryflag CFLAGS_AUTO -fno-unwind-tables
 tryflag CFLAGS_AUTO -fno-asynchronous-unwind-tables
 
 #
-# The GNU toolchain defaults to assuming unmarked files need an
-# executable stack, potentially exposing vulnerabilities in programs
-# linked with such object files. Fix this.
+# Attempt to put each function and each data object in its own
+# section. This both allows additional size optimizations at link
+# time and works around a dangerous class of compiler/assembler bugs
+# whereby relative address expressions are constant-folded by the
+# assembler even when one or more of the symbols involved is
+# replaceable. See gas pr 18561 and gcc pr 66609, 68178, etc.
 #
-tryflag CFLAGS_AUTO -Wa,--noexecstack
+tryflag CFLAGS_AUTO -ffunction-sections
+tryflag CFLAGS_AUTO -fdata-sections
 
 #
 # On x86, make sure we don't have incompatible instruction set
@@ -489,7 +517,7 @@ int foo(void) { }
 int bar(void) { fp = foo; return foo(); }
 EOF
 if $CC $CFLAGS_C99FSE $CPPFLAGS $CFLAGS \
-  -DSHARED -fPIC -I./src/internal -include vis.h \
+  -DSHARED -fPIC -I$srcdir/src/internal -include vis.h \
   -nostdlib -shared -Wl,-Bsymbolic-functions \
   -o /dev/null "$tmpc" >/dev/null 2>&1 ; then
 visibility=yes
@@ -504,6 +532,25 @@ CFLAGS_AUTO="$CFLAGS_AUTO -include vis.h
 CFLAGS_AUTO="${CFLAGS_AUTO# }"
 fi
 
+# Determine if the compiler produces position-independent code (PIC)
+# by default. If so, we don't need to compile separate object files
+# for libc.a and libc.so.
+if trycppif __PIC__ "$CFLAGS_C99FSE $CPPFLAGS $CFLAGS" ; then
+pic_default=yes
+else
+pic_default=no
+fi
+
+# Reduce space lost to padding for alignment purposes by sorting data
+# objects according to their alignment reqirements. This approximates
+# optimal packing.
+tryldflag LDFLAGS_AUTO -Wl,--sort-section,alignment
+tryldflag LDFLAGS_AUTO -Wl,--sort-common
+
+# When linking shared library, drop dummy weak definitions that were
+# replaced by strong definitions from other translation units.
+tryldflag LDFLAGS_AUTO -Wl,--gc-sections
+
 # Some patched GCC builds have these defaults messed up...
 tryldflag LDFLAGS_AUTO -Wl,--hash-style=both
 
@@ -513,6 +560,11 @@ tryldflag LDFLAGS_AUTO -Wl,--hash-style=
 # runtime library; implementation error is also a possibility.
 tryldflag LDFLAGS_AUTO -Wl,--no-undefined
 
+# Avoid exporting symbols from compiler runtime libraries. They
+# should be hidden anyway, but some toolchains including old gcc
+# versions built without shared library support and pcc are broken.
+tryldflag LDFLAGS_AUTO -Wl,--exclude-libs=ALL
+
 test "$shared" = "no" || {
 # Disable dynamic linking if ld is broken and can't do -Bsymbolic-functions
 LDFLAGS_DUMMY=
@@ -599,8 +651,9 @@ echo '#include <float.h>' > "$tmpc"
 echo '#if LDBL_MANT_DIG == 53' >> "$tmpc"
 echo 'typedef char ldcheck[9-(int)sizeof(long double)];' >> "$tmpc"
 echo '#endif' >> "$tmpc"
-if $CC $CFLAGS_C99FSE -I./arch/$ARCH -I./include $CPPFLAGS $CFLAGS \
-  -c -o /dev/null "$tmpc" >/dev/null 2>&1 ; then
+if $CC $CFLAGS_C99FSE \
+  -I$srcdir/arch/$ARCH -I$srcdir/arch/generic -I$srcdir/include \
+  $CPPFLAGS $CFLAGS -c -o /dev/null "$tmpc" >/dev/null 2>&1 ; then
 printf "yes\n"
 else
 printf "no\n"
@@ -622,6 +675,7 @@ cat << EOF
 ARCH = $ARCH
 SUBARCH = $SUBARCH
 ASMSUBARCH = $ASMSUBARCH
+srcdir = $srcdir
 prefix = $prefix
 exec_prefix = $exec_prefix
 bindir = $bindir
@@ -629,12 +683,14 @@ libdir = $libdir
 includedir = $includedir
 syslibdir = $syslibdir
 CC = $CC
-CFLAGS = $CFLAGS_AUTO $CFLAGS
+CFLAGS = $CFLAGS
+CFLAGS_AUTO = $CFLAGS_AUTO
 CFLAGS_C99FSE = $CFLAGS_C99FSE
 CFLAGS_MEMOPS = $CFLAGS_MEMOPS
 CFLAGS_NOSSP = $CFLAGS_NOSSP
 CPPFLAGS = $CPPFLAGS
-LDFLAGS = $LDFLAGS_AUTO $LDFLAGS
+LDFLAGS = $LDFLAGS
+LDFLAGS_AUTO = $LDFLAGS_AUTO
 CROSS_COMPILE = $CROSS_COMPILE
 LIBCC = $LIBCC
 OPTIMIZE_GLOBS = $OPTIMIZE_GLOBS
@@ -646,6 +702,9 @@ test "x$static" = xno && echo "STATIC_LI
 test "x$shared" = xno && echo "SHARED_LIBS ="
 test "x$cc_family" = xgcc && echo 'WRAPCC_GCC = $(CC)'
 test "x$cc_family" = xclang && echo 'WRAPCC_CLANG = $(CC)'
+test "x$pic_default" = xyes && echo 'AOBJS = $(LOBJS)'
 exec 1>&3 3>&-
 
+test "$srcdir" = "." || ln -sf $srcdir/Makefile .
+
 printf "done\n"
--- a/crt/arm/crti.s
+++ b/crt/arm/crti.s
@@ -1,3 +1,5 @@
+.syntax unified
+
 .section .init
 .global _init
 .type _init,%function
--- a/crt/arm/crtn.s
+++ b/crt/arm/crtn.s
@@ -1,11 +1,9 @@
+.syntax unified
+
 .section .init
 	pop {r0,lr}
-	tst lr,#1
-	moveq pc,lr
 	bx lr
 
 .section .fini
 	pop {r0,lr}
-	tst lr,#1
-	moveq pc,lr
 	bx lr
--- a/crt/rcrt1.c
+++ b/crt/rcrt1.c
@@ -1,7 +1,7 @@
 #define SHARED
 #define START "_start"
 #define _dlstart_c _start_c
-#include "../src/ldso/dlstart.c"
+#include "../ldso/dlstart.c"
 
 int main();
 void _init() __attribute__((weak));
--- a/include/complex.h
+++ b/include/complex.h
@@ -116,7 +116,7 @@ long double creall(long double complex);
 
 #if __STDC_VERSION__ >= 201112L
 #if defined(_Imaginary_I)
-#define __CMPLX(x, y, t) ((t)(x) + _Imaginary_I*(t)(y)))
+#define __CMPLX(x, y, t) ((t)(x) + _Imaginary_I*(t)(y))
 #elif defined(__clang__)
 #define __CMPLX(x, y, t) (+(_Complex t){ (t)(x), (t)(y) })
 #else
--- a/include/netinet/in.h
+++ b/include/netinet/in.h
@@ -103,6 +103,7 @@ uint16_t ntohs(uint16_t);
 #define IPPROTO_SCTP     132
 #define IPPROTO_MH       135
 #define IPPROTO_UDPLITE  136
+#define IPPROTO_MPLS     137
 #define IPPROTO_RAW      255
 #define IPPROTO_MAX      256
 
@@ -200,6 +201,7 @@ uint16_t ntohs(uint16_t);
 #define IP_MINTTL          21
 #define IP_NODEFRAG        22
 #define IP_CHECKSUM        23
+#define IP_BIND_ADDRESS_NO_PORT 24
 #define IP_MULTICAST_IF    32
 #define IP_MULTICAST_TTL   33
 #define IP_MULTICAST_LOOP  34
--- a/include/netinet/tcp.h
+++ b/include/netinet/tcp.h
@@ -27,6 +27,9 @@
 #define TCP_FASTOPEN     23
 #define TCP_TIMESTAMP    24
 #define TCP_NOTSENT_LOWAT 25
+#define TCP_CC_INFO      26
+#define TCP_SAVE_SYN     27
+#define TCP_SAVED_SYN    28
 
 #define TCP_ESTABLISHED  1
 #define TCP_SYN_SENT     2
@@ -41,7 +44,20 @@
 #define TCP_CLOSING      11
 
 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+#define TCPOPT_EOL              0
+#define TCPOPT_NOP              1
+#define TCPOPT_MAXSEG           2
+#define TCPOPT_WINDOW           3
+#define TCPOPT_SACK_PERMITTED   4
+#define TCPOPT_SACK             5
+#define TCPOPT_TIMESTAMP        8
+#define TCPOLEN_SACK_PERMITTED  2
+#define TCPOLEN_WINDOW          3
+#define TCPOLEN_MAXSEG          4
+#define TCPOLEN_TIMESTAMP       10
+
 #define SOL_TCP 6
+
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <stdint.h>
@@ -164,6 +180,10 @@ struct tcp_info
 	uint32_t tcpi_total_retrans;
 	uint64_t tcpi_pacing_rate;
 	uint64_t tcpi_max_pacing_rate;
+	uint64_t tcpi_bytes_acked;
+	uint64_t tcpi_bytes_received;
+	uint32_t tcpi_segs_out;
+	uint32_t tcpi_segs_in;
 };
 
 #define TCP_MD5SIG_MAXKEYLEN    80
--- a/include/netpacket/packet.h
+++ b/include/netpacket/packet.h
@@ -32,10 +32,27 @@ struct packet_mreq {
 #define	PACKET_RECV_OUTPUT		3
 #define	PACKET_RX_RING			5
 #define	PACKET_STATISTICS		6
+#define PACKET_COPY_THRESH		7
+#define PACKET_AUXDATA			8
+#define PACKET_ORIGDEV			9
+#define PACKET_VERSION			10
+#define PACKET_HDRLEN			11
+#define PACKET_RESERVE			12
+#define PACKET_TX_RING			13
+#define PACKET_LOSS			14
+#define PACKET_VNET_HDR			15
+#define PACKET_TX_TIMESTAMP		16
+#define PACKET_TIMESTAMP		17
+#define PACKET_FANOUT			18
+#define PACKET_TX_HAS_OFF		19
+#define PACKET_QDISC_BYPASS		20
+#define PACKET_ROLLOVER_STATS		21
+#define PACKET_FANOUT_DATA		22
 
 #define PACKET_MR_MULTICAST	0
 #define PACKET_MR_PROMISC	1
 #define PACKET_MR_ALLMULTI	2
+#define PACKET_MR_UNICAST	3
 
 #ifdef __cplusplus
 }
--- a/include/signal.h
+++ b/include/signal.h
@@ -27,8 +27,6 @@ extern "C" {
 
 #include <bits/alltypes.h>
 
-#define SIG_HOLD ((void (*)(int)) 2)
-
 #define SIG_BLOCK     0
 #define SIG_UNBLOCK   1
 #define SIG_SETMASK   2
@@ -43,6 +41,18 @@ extern "C" {
 #define SI_USER 0
 #define SI_KERNEL 128
 
+typedef struct sigaltstack stack_t;
+
+#endif
+
+#include <bits/signal.h>
+
+#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
+ || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \
+ || defined(_BSD_SOURCE)
+
+#define SIG_HOLD ((void (*)(int)) 2)
+
 #define FPE_INTDIV 1
 #define FPE_INTOVF 2
 #define FPE_FLTDIV 3
@@ -78,15 +88,17 @@ extern "C" {
 #define CLD_STOPPED 5
 #define CLD_CONTINUED 6
 
-typedef struct sigaltstack stack_t;
-
 union sigval {
 	int sival_int;
 	void *sival_ptr;
 };
 
 typedef struct {
+#ifdef __SI_SWAP_ERRNO_CODE
+	int si_signo, si_code, si_errno;
+#else
 	int si_signo, si_errno, si_code;
+#endif
 	union {
 		char __pad[128 - 2*sizeof(int) - sizeof(long)];
 		struct {
@@ -240,8 +252,6 @@ int sigandset(sigset_t *, const sigset_t
 #define SA_ONESHOT SA_RESETHAND
 #endif
 
-#include <bits/signal.h>
-
 #define SIG_ERR  ((void (*)(int))-1)
 #define SIG_DFL  ((void (*)(int)) 0)
 #define SIG_IGN  ((void (*)(int)) 1)
--- a/include/sys/mman.h
+++ b/include/sys/mman.h
@@ -39,6 +39,7 @@ int remap_file_pages (void *, size_t, in
 #endif
 
 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+#define MLOCK_ONFAULT   0x01
 int madvise (void *, size_t, int);
 int mincore (void *, size_t, unsigned char *);
 #endif
--- a/include/sys/mount.h
+++ b/include/sys/mount.h
@@ -46,12 +46,13 @@ extern "C" {
 #define MS_KERNMOUNT   (1<<22)
 #define MS_I_VERSION   (1<<23)
 #define MS_STRICTATIME (1<<24)
+#define MS_LAZYTIME    (1<<25)
 #define MS_NOSEC       (1<<28)
 #define MS_BORN        (1<<29)
 #define MS_ACTIVE      (1<<30)
 #define MS_NOUSER      (1U<<31)
 
-#define MS_RMT_MASK (MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_I_VERSION)
+#define MS_RMT_MASK (MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_I_VERSION|MS_LAZYTIME)
 
 #define MS_MGC_VAL 0xc0ed0000
 #define MS_MGC_MSK 0xffff0000
--- a/include/sys/prctl.h
+++ b/include/sys/prctl.h
@@ -124,6 +124,12 @@ struct prctl_mm_map {
 #define PR_FP_MODE_FR (1 << 0)
 #define PR_FP_MODE_FRE (1 << 1)
 
+#define PR_CAP_AMBIENT          47
+#define PR_CAP_AMBIENT_IS_SET   1
+#define PR_CAP_AMBIENT_RAISE    2
+#define PR_CAP_AMBIENT_LOWER    3
+#define PR_CAP_AMBIENT_CLEAR_ALL 4
+
 int prctl (int, ...);
 
 #ifdef __cplusplus
--- a/include/sys/ptrace.h
+++ b/include/sys/ptrace.h
@@ -39,6 +39,7 @@ extern "C" {
 #define PTRACE_PEEKSIGINFO 0x4209
 #define PTRACE_GETSIGMASK 0x420a
 #define PTRACE_SETSIGMASK 0x420b
+#define PTRACE_SECCOMP_GET_FILTER 0x420c
 
 #define PT_READ_I PTRACE_PEEKTEXT
 #define PT_READ_D PTRACE_PEEKDATA
@@ -72,7 +73,8 @@ extern "C" {
 #define PTRACE_O_TRACEEXIT      0x00000040
 #define PTRACE_O_TRACESECCOMP   0x00000080
 #define PTRACE_O_EXITKILL       0x00100000
-#define PTRACE_O_MASK           0x001000ff
+#define PTRACE_O_SUSPEND_SECCOMP 0x00200000
+#define PTRACE_O_MASK           0x003000ff
 
 #define PTRACE_EVENT_FORK 1
 #define PTRACE_EVENT_VFORK 2
--- a/include/sys/socket.h
+++ b/include/sys/socket.h
@@ -96,6 +96,7 @@ struct linger
 #define PF_WANPIPE      25
 #define PF_LLC          26
 #define PF_IB           27
+#define PF_MPLS         28
 #define PF_CAN          29
 #define PF_TIPC         30
 #define PF_BLUETOOTH    31
@@ -141,6 +142,7 @@ struct linger
 #define AF_WANPIPE      PF_WANPIPE
 #define AF_LLC          PF_LLC
 #define AF_IB           PF_IB
+#define AF_MPLS         PF_MPLS
 #define AF_CAN          PF_CAN
 #define AF_TIPC         PF_TIPC
 #define AF_BLUETOOTH    PF_BLUETOOTH
@@ -255,6 +257,7 @@ struct linger
 #define MSG_NOSIGNAL  0x4000
 #define MSG_MORE      0x8000
 #define MSG_WAITFORONE 0x10000
+#define MSG_FASTOPEN  0x20000000
 #define MSG_CMSG_CLOEXEC 0x40000000
 
 #define __CMSG_LEN(cmsg) (((cmsg)->cmsg_len + sizeof(long) - 1) & ~(long)(sizeof(long) - 1))
--- /dev/null
+++ b/ldso/dlstart.c
@@ -0,0 +1,146 @@
+#include <stddef.h>
+#include "dynlink.h"
+
+#ifndef START
+#define START "_dlstart"
+#endif
+
+#include "crt_arch.h"
+
+#ifndef GETFUNCSYM
+#define GETFUNCSYM(fp, sym, got) do { \
+	__attribute__((__visibility__("hidden"))) void sym(); \
+	static void (*static_func_ptr)() = sym; \
+	__asm__ __volatile__ ( "" : "+m"(static_func_ptr) : : "memory"); \
+	*(fp) = static_func_ptr; } while(0)
+#endif
+
+__attribute__((__visibility__("hidden")))
+void _dlstart_c(size_t *sp, size_t *dynv)
+{
+	size_t i, aux[AUX_CNT], dyn[DYN_CNT];
+	size_t *rel, rel_size, base;
+
+	int argc = *sp;
+	char **argv = (void *)(sp+1);
+
+	for (i=argc+1; argv[i]; i++);
+	size_t *auxv = (void *)(argv+i+1);
+
+	for (i=0; i<AUX_CNT; i++) aux[i] = 0;
+	for (i=0; auxv[i]; i+=2) if (auxv[i]<AUX_CNT)
+		aux[auxv[i]] = auxv[i+1];
+
+#if DL_FDPIC
+	struct fdpic_loadseg *segs, fakeseg;
+	size_t j;
+	if (dynv) {
+		/* crt_arch.h entry point asm is responsible for reserving
+		 * space and moving the extra fdpic arguments to the stack
+		 * vector where they are easily accessible from C. */
+		segs = ((struct fdpic_loadmap *)(sp[-1] ? sp[-1] : sp[-2]))->segs;
+	} else {
+		/* If dynv is null, the entry point was started from loader
+		 * that is not fdpic-aware. We can assume normal fixed-
+		 * displacement ELF loading was performed, but when ldso was
+		 * run as a command, finding the Ehdr is a heursitic: we
+		 * have to assume Phdrs start in the first 4k of the file. */
+		base = aux[AT_BASE];
+		if (!base) base = aux[AT_PHDR] & -4096;
+		segs = &fakeseg;
+		segs[0].addr = base;
+		segs[0].p_vaddr = 0;
+		segs[0].p_memsz = -1;
+		Ehdr *eh = (void *)base;
+		Phdr *ph = (void *)(base + eh->e_phoff);
+		size_t phnum = eh->e_phnum;
+		size_t phent = eh->e_phentsize;
+		while (phnum-- && ph->p_type != PT_DYNAMIC)
+			ph = (void *)((size_t)ph + phent);
+		dynv = (void *)(base + ph->p_vaddr);
+	}
+#endif
+
+	for (i=0; i<DYN_CNT; i++) dyn[i] = 0;
+	for (i=0; dynv[i]; i+=2) if (dynv[i]<DYN_CNT)
+		dyn[dynv[i]] = dynv[i+1];
+
+#if DL_FDPIC
+	for (i=0; i<DYN_CNT; i++) {
+		if (i==DT_RELASZ || i==DT_RELSZ) continue;
+		if (!dyn[i]) continue;
+		for (j=0; dyn[i]-segs[j].p_vaddr >= segs[j].p_memsz; j++);
+		dyn[i] += segs[j].addr - segs[j].p_vaddr;
+	}
+	base = 0;
+
+	const Sym *syms = (void *)dyn[DT_SYMTAB];
+
+	rel = (void *)dyn[DT_RELA];
+	rel_size = dyn[DT_RELASZ];
+	for (; rel_size; rel+=3, rel_size-=3*sizeof(size_t)) {
+		if (!IS_RELATIVE(rel[1], syms)) continue;
+		for (j=0; rel[0]-segs[j].p_vaddr >= segs[j].p_memsz; j++);
+		size_t *rel_addr = (void *)
+			(rel[0] + segs[j].addr - segs[j].p_vaddr);
+		if (R_TYPE(rel[1]) == REL_FUNCDESC_VAL) {
+			*rel_addr += segs[rel_addr[1]].addr
+				- segs[rel_addr[1]].p_vaddr
+				+ syms[R_SYM(rel[1])].st_value;
+			rel_addr[1] = dyn[DT_PLTGOT];
+		} else {
+			size_t val = syms[R_SYM(rel[1])].st_value;
+			for (j=0; val-segs[j].p_vaddr >= segs[j].p_memsz; j++);
+			*rel_addr = rel[2] + segs[j].addr - segs[j].p_vaddr + val;
+		}
+	}
+#else
+	/* If the dynamic linker is invoked as a command, its load
+	 * address is not available in the aux vector. Instead, compute
+	 * the load address as the difference between &_DYNAMIC and the
+	 * virtual address in the PT_DYNAMIC program header. */
+	base = aux[AT_BASE];
+	if (!base) {
+		size_t phnum = aux[AT_PHNUM];
+		size_t phentsize = aux[AT_PHENT];
+		Phdr *ph = (void *)aux[AT_PHDR];
+		for (i=phnum; i--; ph = (void *)((char *)ph + phentsize)) {
+			if (ph->p_type == PT_DYNAMIC) {
+				base = (size_t)dynv - ph->p_vaddr;
+				break;
+			}
+		}
+	}
+
+	/* MIPS uses an ugly packed form for GOT relocations. Since we
+	 * can't make function calls yet and the code is tiny anyway,
+	 * it's simply inlined here. */
+	if (NEED_MIPS_GOT_RELOCS) {
+		size_t local_cnt = 0;
+		size_t *got = (void *)(base + dyn[DT_PLTGOT]);
+		for (i=0; dynv[i]; i+=2) if (dynv[i]==DT_MIPS_LOCAL_GOTNO)
+			local_cnt = dynv[i+1];
+		for (i=0; i<local_cnt; i++) got[i] += base;
+	}
+
+	rel = (void *)(base+dyn[DT_REL]);
+	rel_size = dyn[DT_RELSZ];
+	for (; rel_size; rel+=2, rel_size-=2*sizeof(size_t)) {
+		if (!IS_RELATIVE(rel[1], 0)) continue;
+		size_t *rel_addr = (void *)(base + rel[0]);
+		*rel_addr += base;
+	}
+
+	rel = (void *)(base+dyn[DT_RELA]);
+	rel_size = dyn[DT_RELASZ];
+	for (; rel_size; rel+=3, rel_size-=3*sizeof(size_t)) {
+		if (!IS_RELATIVE(rel[1], 0)) continue;
+		size_t *rel_addr = (void *)(base + rel[0]);
+		*rel_addr = base + rel[2];
+	}
+#endif
+
+	stage2_func dls2;
+	GETFUNCSYM(&dls2, __dls2, base+dyn[DT_PLTGOT]);
+	dls2((void *)base, sp);
+}
--- /dev/null
+++ b/ldso/dynlink.c
@@ -0,0 +1,1931 @@
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <stddef.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdint.h>
+#include <elf.h>
+#include <sys/mman.h>
+#include <limits.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <errno.h>
+#include <link.h>
+#include <setjmp.h>
+#include <pthread.h>
+#include <ctype.h>
+#include <dlfcn.h>
+#include "pthread_impl.h"
+#include "libc.h"
+#include "dynlink.h"
+
+static void error(const char *, ...);
+
+#define MAXP2(a,b) (-(-(a)&-(b)))
+#define ALIGN(x,y) ((x)+(y)-1 & -(y))
+
+struct debug {
+	int ver;
+	void *head;
+	void (*bp)(void);
+	int state;
+	void *base;
+};
+
+struct td_index {
+	size_t args[2];
+	struct td_index *next;
+};
+
+struct dso {
+#if DL_FDPIC
+	struct fdpic_loadmap *loadmap;
+#else
+	unsigned char *base;
+#endif
+	char *name;
+	size_t *dynv;
+	struct dso *next, *prev;
+
+	Phdr *phdr;
+	int phnum;
+	size_t phentsize;
+	int refcnt;
+	Sym *syms;
+	uint32_t *hashtab;
+	uint32_t *ghashtab;
+	int16_t *versym;
+	char *strings;
+	unsigned char *map;
+	size_t map_len;
+	dev_t dev;
+	ino_t ino;
+	signed char global;
+	char relocated;
+	char constructed;
+	char kernel_mapped;
+	struct dso **deps, *needed_by;
+	char *rpath_orig, *rpath;
+	struct tls_module tls;
+	size_t tls_id;
+	size_t relro_start, relro_end;
+	void **new_dtv;
+	unsigned char *new_tls;
+	volatile int new_dtv_idx, new_tls_idx;
+	struct td_index *td_index;
+	struct dso *fini_next;
+	char *shortname;
+#if DL_FDPIC
+	unsigned char *base;
+#else
+	struct fdpic_loadmap *loadmap;
+#endif
+	struct funcdesc {
+		void *addr;
+		size_t *got;
+	} *funcdescs;
+	size_t *got;
+	char buf[];
+};
+
+struct symdef {
+	Sym *sym;
+	struct dso *dso;
+};
+
+int __init_tp(void *);
+void __init_libc(char **, char *);
+void *__copy_tls(unsigned char *);
+
+__attribute__((__visibility__("hidden")))
+const char *__libc_get_version(void);
+
+static struct builtin_tls {
+	char c;
+	struct pthread pt;
+	void *space[16];
+} builtin_tls[1];
+#define MIN_TLS_ALIGN offsetof(struct builtin_tls, pt)
+
+#define ADDEND_LIMIT 4096
+static size_t *saved_addends, *apply_addends_to;
+
+static struct dso ldso;
+static struct dso *head, *tail, *fini_head;
+static char *env_path, *sys_path;
+static unsigned long long gencnt;
+static int runtime;
+static int ldd_mode;
+static int ldso_fail;
+static int noload;
+static jmp_buf *rtld_fail;
+static pthread_rwlock_t lock;
+static struct debug debug;
+static struct tls_module *tls_tail;
+static size_t tls_cnt, tls_offset, tls_align = MIN_TLS_ALIGN;
+static size_t static_tls_cnt;
+static pthread_mutex_t init_fini_lock = { ._m_type = PTHREAD_MUTEX_RECURSIVE };
+static struct fdpic_loadmap *app_loadmap;
+static struct fdpic_dummy_loadmap app_dummy_loadmap;
+
+struct debug *_dl_debug_addr = &debug;
+
+__attribute__((__visibility__("hidden")))
+void (*const __init_array_start)(void)=0, (*const __fini_array_start)(void)=0;
+
+__attribute__((__visibility__("hidden")))
+extern void (*const __init_array_end)(void), (*const __fini_array_end)(void);
+
+weak_alias(__init_array_start, __init_array_end);
+weak_alias(__fini_array_start, __fini_array_end);
+
+static int dl_strcmp(const char *l, const char *r)
+{
+	for (; *l==*r && *l; l++, r++);
+	return *(unsigned char *)l - *(unsigned char *)r;
+}
+#define strcmp(l,r) dl_strcmp(l,r)
+
+/* Compute load address for a virtual address in a given dso. */
+#if DL_FDPIC
+static void *laddr(const struct dso *p, size_t v)
+{
+	size_t j=0;
+	if (!p->loadmap) return p->base + v;
+	for (j=0; v-p->loadmap->segs[j].p_vaddr >= p->loadmap->segs[j].p_memsz; j++);
+	return (void *)(v - p->loadmap->segs[j].p_vaddr + p->loadmap->segs[j].addr);
+}
+#define fpaddr(p, v) ((void (*)())&(struct funcdesc){ \
+	laddr(p, v), (p)->got })
+#else
+#define laddr(p, v) (void *)((p)->base + (v))
+#define fpaddr(p, v) ((void (*)())laddr(p, v))
+#endif
+
+static void decode_vec(size_t *v, size_t *a, size_t cnt)
+{
+	size_t i;
+	for (i=0; i<cnt; i++) a[i] = 0;
+	for (; v[0]; v+=2) if (v[0]-1<cnt-1) {
+		a[0] |= 1UL<<v[0];
+		a[v[0]] = v[1];
+	}
+}
+
+static int search_vec(size_t *v, size_t *r, size_t key)
+{
+	for (; v[0]!=key; v+=2)
+		if (!v[0]) return 0;
+	*r = v[1];
+	return 1;
+}
+
+static uint32_t sysv_hash(const char *s0)
+{
+	const unsigned char *s = (void *)s0;
+	uint_fast32_t h = 0;
+	while (*s) {
+		h = 16*h + *s++;
+		h ^= h>>24 & 0xf0;
+	}
+	return h & 0xfffffff;
+}
+
+static uint32_t gnu_hash(const char *s0)
+{
+	const unsigned char *s = (void *)s0;
+	uint_fast32_t h = 5381;
+	for (; *s; s++)
+		h += h*32 + *s;
+	return h;
+}
+
+static Sym *sysv_lookup(const char *s, uint32_t h, struct dso *dso)
+{
+	size_t i;
+	Sym *syms = dso->syms;
+	uint32_t *hashtab = dso->hashtab;
+	char *strings = dso->strings;
+	for (i=hashtab[2+h%hashtab[0]]; i; i=hashtab[2+hashtab[0]+i]) {
+		if ((!dso->versym || dso->versym[i] >= 0)
+		    && (!strcmp(s, strings+syms[i].st_name)))
+			return syms+i;
+	}
+	return 0;
+}
+
+static Sym *gnu_lookup(uint32_t h1, uint32_t *hashtab, struct dso *dso, const char *s)
+{
+	uint32_t nbuckets = hashtab[0];
+	uint32_t *buckets = hashtab + 4 + hashtab[2]*(sizeof(size_t)/4);
+	uint32_t i = buckets[h1 % nbuckets];
+
+	if (!i) return 0;
+
+	uint32_t *hashval = buckets + nbuckets + (i - hashtab[1]);
+
+	for (h1 |= 1; ; i++) {
+		uint32_t h2 = *hashval++;
+		if ((h1 == (h2|1)) && (!dso->versym || dso->versym[i] >= 0)
+		    && !strcmp(s, dso->strings + dso->syms[i].st_name))
+			return dso->syms+i;
+		if (h2 & 1) break;
+	}
+
+	return 0;
+}
+
+static Sym *gnu_lookup_filtered(uint32_t h1, uint32_t *hashtab, struct dso *dso, const char *s, uint32_t fofs, size_t fmask)
+{
+	const size_t *bloomwords = (const void *)(hashtab+4);
+	size_t f = bloomwords[fofs & (hashtab[2]-1)];
+	if (!(f & fmask)) return 0;
+
+	f >>= (h1 >> hashtab[3]) % (8 * sizeof f);
+	if (!(f & 1)) return 0;
+
+	return gnu_lookup(h1, hashtab, dso, s);
+}
+
+#define OK_TYPES (1<<STT_NOTYPE | 1<<STT_OBJECT | 1<<STT_FUNC | 1<<STT_COMMON | 1<<STT_TLS)
+#define OK_BINDS (1<<STB_GLOBAL | 1<<STB_WEAK | 1<<STB_GNU_UNIQUE)
+
+#ifndef ARCH_SYM_REJECT_UND
+#define ARCH_SYM_REJECT_UND(s) 0
+#endif
+
+static struct symdef find_sym(struct dso *dso, const char *s, int need_def)
+{
+	uint32_t h = 0, gh, gho, *ght;
+	size_t ghm = 0;
+	struct symdef def = {0};
+	for (; dso; dso=dso->next) {
+		Sym *sym;
+		if (!dso->global) continue;
+		if ((ght = dso->ghashtab)) {
+			if (!ghm) {
+				gh = gnu_hash(s);
+				int maskbits = 8 * sizeof ghm;
+				gho = gh / maskbits;
+				ghm = 1ul << gh % maskbits;
+			}
+			sym = gnu_lookup_filtered(gh, ght, dso, s, gho, ghm);
+		} else {
+			if (!h) h = sysv_hash(s);
+			sym = sysv_lookup(s, h, dso);
+		}
+		if (!sym) continue;
+		if (!sym->st_shndx)
+			if (need_def || (sym->st_info&0xf) == STT_TLS
+			    || ARCH_SYM_REJECT_UND(sym))
+				continue;
+		if (!sym->st_value)
+			if ((sym->st_info&0xf) != STT_TLS)
+				continue;
+		if (!(1<<(sym->st_info&0xf) & OK_TYPES)) continue;
+		if (!(1<<(sym->st_info>>4) & OK_BINDS)) continue;
+
+		if (def.sym && sym->st_info>>4 == STB_WEAK) continue;
+		def.sym = sym;
+		def.dso = dso;
+		if (sym->st_info>>4 == STB_GLOBAL) break;
+	}
+	return def;
+}
+
+__attribute__((__visibility__("hidden")))
+ptrdiff_t __tlsdesc_static(), __tlsdesc_dynamic();
+
+static void do_relocs(struct dso *dso, size_t *rel, size_t rel_size, size_t stride)
+{
+	unsigned char *base = dso->base;
+	Sym *syms = dso->syms;
+	char *strings = dso->strings;
+	Sym *sym;
+	const char *name;
+	void *ctx;
+	int type;
+	int sym_index;
+	struct symdef def;
+	size_t *reloc_addr;
+	size_t sym_val;
+	size_t tls_val;
+	size_t addend;
+	int skip_relative = 0, reuse_addends = 0, save_slot = 0;
+
+	if (dso == &ldso) {
+		/* Only ldso's REL table needs addend saving/reuse. */
+		if (rel == apply_addends_to)
+			reuse_addends = 1;
+		skip_relative = 1;
+	}
+
+	for (; rel_size; rel+=stride, rel_size-=stride*sizeof(size_t)) {
+		if (skip_relative && IS_RELATIVE(rel[1], dso->syms)) continue;
+		type = R_TYPE(rel[1]);
+		if (type == REL_NONE) continue;
+		sym_index = R_SYM(rel[1]);
+		reloc_addr = laddr(dso, rel[0]);
+		if (sym_index) {
+			sym = syms + sym_index;
+			name = strings + sym->st_name;
+			ctx = type==REL_COPY ? head->next : head;
+			def = (sym->st_info&0xf) == STT_SECTION
+				? (struct symdef){ .dso = dso, .sym = sym }
+				: find_sym(ctx, name, type==REL_PLT);
+			if (!def.sym && (sym->st_shndx != SHN_UNDEF
+			    || sym->st_info>>4 != STB_WEAK)) {
+				error("Error relocating %s: %s: symbol not found",
+					dso->name, name);
+				if (runtime) longjmp(*rtld_fail, 1);
+				continue;
+			}
+		} else {
+			sym = 0;
+			def.sym = 0;
+			def.dso = dso;
+		}
+
+		if (stride > 2) {
+			addend = rel[2];
+		} else if (type==REL_GOT || type==REL_PLT|| type==REL_COPY) {
+			addend = 0;
+		} else if (reuse_addends) {
+			/* Save original addend in stage 2 where the dso
+			 * chain consists of just ldso; otherwise read back
+			 * saved addend since the inline one was clobbered. */
+			if (head==&ldso)
+				saved_addends[save_slot] = *reloc_addr;
+			addend = saved_addends[save_slot++];
+		} else {
+			addend = *reloc_addr;
+		}
+
+		sym_val = def.sym ? (size_t)laddr(def.dso, def.sym->st_value) : 0;
+		tls_val = def.sym ? def.sym->st_value : 0;
+
+		switch(type) {
+		case REL_NONE:
+			break;
+		case REL_OFFSET:
+			addend -= (size_t)reloc_addr;
+		case REL_SYMBOLIC:
+		case REL_GOT:
+		case REL_PLT:
+			*reloc_addr = sym_val + addend;
+			break;
+		case REL_RELATIVE:
+			*reloc_addr = (size_t)base + addend;
+			break;
+		case REL_SYM_OR_REL:
+			if (sym) *reloc_addr = sym_val + addend;
+			else *reloc_addr = (size_t)base + addend;
+			break;
+		case REL_COPY:
+			memcpy(reloc_addr, (void *)sym_val, sym->st_size);
+			break;
+		case REL_OFFSET32:
+			*(uint32_t *)reloc_addr = sym_val + addend
+				- (size_t)reloc_addr;
+			break;
+		case REL_FUNCDESC:
+			*reloc_addr = def.sym ? (size_t)(def.dso->funcdescs
+				+ (def.sym - def.dso->syms)) : 0;
+			break;
+		case REL_FUNCDESC_VAL:
+			if ((sym->st_info&0xf) == STT_SECTION) *reloc_addr += sym_val;
+			else *reloc_addr = sym_val;
+			reloc_addr[1] = def.sym ? (size_t)def.dso->got : 0;
+			break;
+		case REL_DTPMOD:
+			*reloc_addr = def.dso->tls_id;
+			break;
+		case REL_DTPOFF:
+			*reloc_addr = tls_val + addend - DTP_OFFSET;
+			break;
+#ifdef TLS_ABOVE_TP
+		case REL_TPOFF:
+			*reloc_addr = tls_val + def.dso->tls.offset + TPOFF_K + addend;
+			break;
+#else
+		case REL_TPOFF:
+			*reloc_addr = tls_val - def.dso->tls.offset + addend;
+			break;
+		case REL_TPOFF_NEG:
+			*reloc_addr = def.dso->tls.offset - tls_val + addend;
+			break;
+#endif
+		case REL_TLSDESC:
+			if (stride<3) addend = reloc_addr[1];
+			if (runtime && def.dso->tls_id >= static_tls_cnt) {
+				struct td_index *new = malloc(sizeof *new);
+				if (!new) {
+					error(
+					"Error relocating %s: cannot allocate TLSDESC for %s",
+					dso->name, sym ? name : "(local)" );
+					longjmp(*rtld_fail, 1);
+				}
+				new->next = dso->td_index;
+				dso->td_index = new;
+				new->args[0] = def.dso->tls_id;
+				new->args[1] = tls_val + addend;
+				reloc_addr[0] = (size_t)__tlsdesc_dynamic;
+				reloc_addr[1] = (size_t)new;
+			} else {
+				reloc_addr[0] = (size_t)__tlsdesc_static;
+#ifdef TLS_ABOVE_TP
+				reloc_addr[1] = tls_val + def.dso->tls.offset
+					+ TPOFF_K + addend;
+#else
+				reloc_addr[1] = tls_val - def.dso->tls.offset
+					+ addend;
+#endif
+			}
+			break;
+		default:
+			error("Error relocating %s: unsupported relocation type %d",
+				dso->name, type);
+			if (runtime) longjmp(*rtld_fail, 1);
+			continue;
+		}
+	}
+}
+
+/* A huge hack: to make up for the wastefulness of shared libraries
+ * needing at least a page of dirty memory even if they have no global
+ * data, we reclaim the gaps at the beginning and end of writable maps
+ * and "donate" them to the heap by setting up minimal malloc
+ * structures and then freeing them. */
+
+static void reclaim(struct dso *dso, size_t start, size_t end)
+{
+	size_t *a, *z;
+	if (start >= dso->relro_start && start < dso->relro_end) start = dso->relro_end;
+	if (end   >= dso->relro_start && end   < dso->relro_end) end = dso->relro_start;
+	start = start + 6*sizeof(size_t)-1 & -4*sizeof(size_t);
+	end = (end & -4*sizeof(size_t)) - 2*sizeof(size_t);
+	if (start>end || end-start < 4*sizeof(size_t)) return;
+	a = laddr(dso, start);
+	z = laddr(dso, end);
+	a[-2] = 1;
+	a[-1] = z[0] = end-start + 2*sizeof(size_t) | 1;
+	z[1] = 1;
+	free(a);
+}
+
+static void reclaim_gaps(struct dso *dso)
+{
+	Phdr *ph = dso->phdr;
+	size_t phcnt = dso->phnum;
+
+	if (DL_FDPIC) return; // FIXME
+	for (; phcnt--; ph=(void *)((char *)ph+dso->phentsize)) {
+		if (ph->p_type!=PT_LOAD) continue;
+		if ((ph->p_flags&(PF_R|PF_W))!=(PF_R|PF_W)) continue;
+		reclaim(dso, ph->p_vaddr & -PAGE_SIZE, ph->p_vaddr);
+		reclaim(dso, ph->p_vaddr+ph->p_memsz,
+			ph->p_vaddr+ph->p_memsz+PAGE_SIZE-1 & -PAGE_SIZE);
+	}
+}
+
+static void *mmap_fixed(void *p, size_t n, int prot, int flags, int fd, off_t off)
+{
+	static int no_map_fixed;
+	char *q;
+	if (!no_map_fixed) {
+		q = mmap(p, n, prot, flags|MAP_FIXED, fd, off);
+		if (!DL_NOMMU_SUPPORT || q != MAP_FAILED || errno != EINVAL)
+			return q;
+		no_map_fixed = 1;
+	}
+	/* Fallbacks for MAP_FIXED failure on NOMMU kernels. */
+	if (flags & MAP_ANONYMOUS) {
+		memset(p, 0, n);
+		return p;
+	}
+	ssize_t r;
+	if (lseek(fd, off, SEEK_SET) < 0) return MAP_FAILED;
+	for (q=p; n; q+=r, off+=r, n-=r) {
+		r = read(fd, q, n);
+		if (r < 0 && errno != EINTR) return MAP_FAILED;
+		if (!r) {
+			memset(q, 0, n);
+			break;
+		}
+	}
+	return p;
+}
+
+static void unmap_library(struct dso *dso)
+{
+	if (dso->loadmap) {
+		size_t i;
+		for (i=0; i<dso->loadmap->nsegs; i++) {
+			if (!dso->loadmap->segs[i].p_memsz)
+				continue;
+			munmap((void *)dso->loadmap->segs[i].addr,
+				dso->loadmap->segs[i].p_memsz);
+		}
+		free(dso->loadmap);
+	} else if (dso->map && dso->map_len) {
+		munmap(dso->map, dso->map_len);
+	}
+}
+
+static void *map_library(int fd, struct dso *dso)
+{
+	Ehdr buf[(896+sizeof(Ehdr))/sizeof(Ehdr)];
+	void *allocated_buf=0;
+	size_t phsize;
+	size_t addr_min=SIZE_MAX, addr_max=0, map_len;
+	size_t this_min, this_max;
+	size_t nsegs = 0;
+	off_t off_start;
+	Ehdr *eh;
+	Phdr *ph, *ph0;
+	unsigned prot;
+	unsigned char *map=MAP_FAILED, *base;
+	size_t dyn=0;
+	size_t tls_image=0;
+	size_t i;
+
+	ssize_t l = read(fd, buf, sizeof buf);
+	eh = buf;
+	if (l<0) return 0;
+	if (l<sizeof *eh || (eh->e_type != ET_DYN && eh->e_type != ET_EXEC))
+		goto noexec;
+	phsize = eh->e_phentsize * eh->e_phnum;
+	if (phsize > sizeof buf - sizeof *eh) {
+		allocated_buf = malloc(phsize);
+		if (!allocated_buf) return 0;
+		l = pread(fd, allocated_buf, phsize, eh->e_phoff);
+		if (l < 0) goto error;
+		if (l != phsize) goto noexec;
+		ph = ph0 = allocated_buf;
+	} else if (eh->e_phoff + phsize > l) {
+		l = pread(fd, buf+1, phsize, eh->e_phoff);
+		if (l < 0) goto error;
+		if (l != phsize) goto noexec;
+		ph = ph0 = (void *)(buf + 1);
+	} else {
+		ph = ph0 = (void *)((char *)buf + eh->e_phoff);
+	}
+	for (i=eh->e_phnum; i; i--, ph=(void *)((char *)ph+eh->e_phentsize)) {
+		if (ph->p_type == PT_DYNAMIC) {
+			dyn = ph->p_vaddr;
+		} else if (ph->p_type == PT_TLS) {
+			tls_image = ph->p_vaddr;
+			dso->tls.align = ph->p_align;
+			dso->tls.len = ph->p_filesz;
+			dso->tls.size = ph->p_memsz;
+		} else if (ph->p_type == PT_GNU_RELRO) {
+			dso->relro_start = ph->p_vaddr & -PAGE_SIZE;
+			dso->relro_end = (ph->p_vaddr + ph->p_memsz) & -PAGE_SIZE;
+		}
+		if (ph->p_type != PT_LOAD) continue;
+		nsegs++;
+		if (ph->p_vaddr < addr_min) {
+			addr_min = ph->p_vaddr;
+			off_start = ph->p_offset;
+			prot = (((ph->p_flags&PF_R) ? PROT_READ : 0) |
+				((ph->p_flags&PF_W) ? PROT_WRITE: 0) |
+				((ph->p_flags&PF_X) ? PROT_EXEC : 0));
+		}
+		if (ph->p_vaddr+ph->p_memsz > addr_max) {
+			addr_max = ph->p_vaddr+ph->p_memsz;
+		}
+	}
+	if (!dyn) goto noexec;
+	if (DL_FDPIC && !(eh->e_flags & FDPIC_CONSTDISP_FLAG)) {
+		dso->loadmap = calloc(1, sizeof *dso->loadmap
+			+ nsegs * sizeof *dso->loadmap->segs);
+		if (!dso->loadmap) goto error;
+		dso->loadmap->nsegs = nsegs;
+		for (ph=ph0, i=0; i<nsegs; ph=(void *)((char *)ph+eh->e_phentsize)) {
+			if (ph->p_type != PT_LOAD) continue;
+			prot = (((ph->p_flags&PF_R) ? PROT_READ : 0) |
+				((ph->p_flags&PF_W) ? PROT_WRITE: 0) |
+				((ph->p_flags&PF_X) ? PROT_EXEC : 0));
+			map = mmap(0, ph->p_memsz + (ph->p_vaddr & PAGE_SIZE-1),
+				prot, MAP_PRIVATE,
+				fd, ph->p_offset & -PAGE_SIZE);
+			if (map == MAP_FAILED) {
+				unmap_library(dso);
+				goto error;
+			}
+			dso->loadmap->segs[i].addr = (size_t)map +
+				(ph->p_vaddr & PAGE_SIZE-1);
+			dso->loadmap->segs[i].p_vaddr = ph->p_vaddr;
+			dso->loadmap->segs[i].p_memsz = ph->p_memsz;
+			i++;
+			if (prot & PROT_WRITE) {
+				size_t brk = (ph->p_vaddr & PAGE_SIZE-1)
+					+ ph->p_filesz;
+				size_t pgbrk = brk + PAGE_SIZE-1 & -PAGE_SIZE;
+				size_t pgend = brk + ph->p_memsz - ph->p_filesz
+					+ PAGE_SIZE-1 & -PAGE_SIZE;
+				if (pgend > pgbrk && mmap_fixed(map+pgbrk,
+					pgend-pgbrk, prot,
+					MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS,
+					-1, off_start) == MAP_FAILED)
+					goto error;
+				memset(map + brk, 0, pgbrk-brk);
+			}
+		}
+		map = (void *)dso->loadmap->segs[0].addr;
+		map_len = 0;
+		goto done_mapping;
+	}
+	addr_max += PAGE_SIZE-1;
+	addr_max &= -PAGE_SIZE;
+	addr_min &= -PAGE_SIZE;
+	off_start &= -PAGE_SIZE;
+	map_len = addr_max - addr_min + off_start;
+	/* The first time, we map too much, possibly even more than
+	 * the length of the file. This is okay because we will not
+	 * use the invalid part; we just need to reserve the right
+	 * amount of virtual address space to map over later. */
+	map = DL_NOMMU_SUPPORT
+		? mmap((void *)addr_min, map_len, PROT_READ|PROT_WRITE|PROT_EXEC,
+			MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
+		: mmap((void *)addr_min, map_len, prot,
+			MAP_PRIVATE, fd, off_start);
+	if (map==MAP_FAILED) goto error;
+	dso->map = map;
+	dso->map_len = map_len;
+	/* If the loaded file is not relocatable and the requested address is
+	 * not available, then the load operation must fail. */
+	if (eh->e_type != ET_DYN && addr_min && map!=(void *)addr_min) {
+		errno = EBUSY;
+		goto error;
+	}
+	base = map - addr_min;
+	dso->phdr = 0;
+	dso->phnum = 0;
+	for (ph=ph0, i=eh->e_phnum; i; i--, ph=(void *)((char *)ph+eh->e_phentsize)) {
+		if (ph->p_type != PT_LOAD) continue;
+		/* Check if the programs headers are in this load segment, and
+		 * if so, record the address for use by dl_iterate_phdr. */
+		if (!dso->phdr && eh->e_phoff >= ph->p_offset
+		    && eh->e_phoff+phsize <= ph->p_offset+ph->p_filesz) {
+			dso->phdr = (void *)(base + ph->p_vaddr
+				+ (eh->e_phoff-ph->p_offset));
+			dso->phnum = eh->e_phnum;
+			dso->phentsize = eh->e_phentsize;
+		}
+		/* Reuse the existing mapping for the lowest-address LOAD */
+		if ((ph->p_vaddr & -PAGE_SIZE) == addr_min && !DL_NOMMU_SUPPORT)
+			continue;
+		this_min = ph->p_vaddr & -PAGE_SIZE;
+		this_max = ph->p_vaddr+ph->p_memsz+PAGE_SIZE-1 & -PAGE_SIZE;
+		off_start = ph->p_offset & -PAGE_SIZE;
+		prot = (((ph->p_flags&PF_R) ? PROT_READ : 0) |
+			((ph->p_flags&PF_W) ? PROT_WRITE: 0) |
+			((ph->p_flags&PF_X) ? PROT_EXEC : 0));
+		if (mmap_fixed(base+this_min, this_max-this_min, prot, MAP_PRIVATE|MAP_FIXED, fd, off_start) == MAP_FAILED)
+			goto error;
+		if (ph->p_memsz > ph->p_filesz) {
+			size_t brk = (size_t)base+ph->p_vaddr+ph->p_filesz;
+			size_t pgbrk = brk+PAGE_SIZE-1 & -PAGE_SIZE;
+			memset((void *)brk, 0, pgbrk-brk & PAGE_SIZE-1);
+			if (pgbrk-(size_t)base < this_max && mmap_fixed((void *)pgbrk, (size_t)base+this_max-pgbrk, prot, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) == MAP_FAILED)
+				goto error;
+		}
+	}
+	for (i=0; ((size_t *)(base+dyn))[i]; i+=2)
+		if (((size_t *)(base+dyn))[i]==DT_TEXTREL) {
+			if (mprotect(map, map_len, PROT_READ|PROT_WRITE|PROT_EXEC)
+			    && errno != ENOSYS)
+				goto error;
+			break;
+		}
+done_mapping:
+	dso->base = base;
+	dso->dynv = laddr(dso, dyn);
+	if (dso->tls.size) dso->tls.image = laddr(dso, tls_image);
+	if (!runtime) reclaim_gaps(dso);
+	free(allocated_buf);
+	return map;
+noexec:
+	errno = ENOEXEC;
+error:
+	if (map!=MAP_FAILED) unmap_library(dso);
+	free(allocated_buf);
+	return 0;
+}
+
+static int path_open(const char *name, const char *s, char *buf, size_t buf_size)
+{
+	size_t l;
+	int fd;
+	for (;;) {
+		s += strspn(s, ":\n");
+		l = strcspn(s, ":\n");
+		if (l-1 >= INT_MAX) return -1;
+		if (snprintf(buf, buf_size, "%.*s/%s", (int)l, s, name) < buf_size) {
+			if ((fd = open(buf, O_RDONLY|O_CLOEXEC))>=0) return fd;
+			switch (errno) {
+			case ENOENT:
+			case ENOTDIR:
+			case EACCES:
+			case ENAMETOOLONG:
+				break;
+			default:
+				/* Any negative value but -1 will inhibit
+				 * futher path search. */
+				return -2;
+			}
+		}
+		s += l;
+	}
+}
+
+static int fixup_rpath(struct dso *p, char *buf, size_t buf_size)
+{
+	size_t n, l;
+	const char *s, *t, *origin;
+	char *d;
+	if (p->rpath || !p->rpath_orig) return 0;
+	if (!strchr(p->rpath_orig, '$')) {
+		p->rpath = p->rpath_orig;
+		return 0;
+	}
+	n = 0;
+	s = p->rpath_orig;
+	while ((t=strchr(s, '$'))) {
+		if (strncmp(t, "$ORIGIN", 7) && strncmp(t, "${ORIGIN}", 9))
+			return 0;
+		s = t+1;
+		n++;
+	}
+	if (n > SSIZE_MAX/PATH_MAX) return 0;
+
+	if (p->kernel_mapped) {
+		/* $ORIGIN searches cannot be performed for the main program
+		 * when it is suid/sgid/AT_SECURE. This is because the
+		 * pathname is under the control of the caller of execve.
+		 * For libraries, however, $ORIGIN can be processed safely
+		 * since the library's pathname came from a trusted source
+		 * (either system paths or a call to dlopen). */
+		if (libc.secure)
+			return 0;
+		l = readlink("/proc/self/exe", buf, buf_size);
+		if (l == -1) switch (errno) {
+		case ENOENT:
+		case ENOTDIR:
+		case EACCES:
+			break;
+		default:
+			return -1;
+		}
+		if (l >= buf_size)
+			return 0;
+		buf[l] = 0;
+		origin = buf;
+	} else {
+		origin = p->name;
+	}
+	t = strrchr(origin, '/');
+	l = t ? t-origin : 0;
+	p->rpath = malloc(strlen(p->rpath_orig) + n*l + 1);
+	if (!p->rpath) return -1;
+
+	d = p->rpath;
+	s = p->rpath_orig;
+	while ((t=strchr(s, '$'))) {
+		memcpy(d, s, t-s);
+		d += t-s;
+		memcpy(d, origin, l);
+		d += l;
+		/* It was determined previously that the '$' is followed
+		 * either by "ORIGIN" or "{ORIGIN}". */
+		s = t + 7 + 2*(t[1]=='{');
+	}
+	strcpy(d, s);
+	return 0;
+}
+
+static void decode_dyn(struct dso *p)
+{
+	size_t dyn[DYN_CNT];
+	decode_vec(p->dynv, dyn, DYN_CNT);
+	p->syms = laddr(p, dyn[DT_SYMTAB]);
+	p->strings = laddr(p, dyn[DT_STRTAB]);
+	if (dyn[0]&(1<<DT_HASH))
+		p->hashtab = laddr(p, dyn[DT_HASH]);
+	if (dyn[0]&(1<<DT_RPATH))
+		p->rpath_orig = p->strings + dyn[DT_RPATH];
+	if (dyn[0]&(1<<DT_RUNPATH))
+		p->rpath_orig = p->strings + dyn[DT_RUNPATH];
+	if (dyn[0]&(1<<DT_PLTGOT))
+		p->got = laddr(p, dyn[DT_PLTGOT]);
+	if (search_vec(p->dynv, dyn, DT_GNU_HASH))
+		p->ghashtab = laddr(p, *dyn);
+	if (search_vec(p->dynv, dyn, DT_VERSYM))
+		p->versym = laddr(p, *dyn);
+}
+
+static size_t count_syms(struct dso *p)
+{
+	if (p->hashtab) return p->hashtab[1];
+
+	size_t nsym, i;
+	uint32_t *buckets = p->ghashtab + 4 + (p->ghashtab[2]*sizeof(size_t)/4);
+	uint32_t *hashval;
+	for (i = nsym = 0; i < p->ghashtab[0]; i++) {
+		if (buckets[i] > nsym)
+			nsym = buckets[i];
+	}
+	if (nsym) {
+		hashval = buckets + p->ghashtab[0] + (nsym - p->ghashtab[1]);
+		do nsym++;
+		while (!(*hashval++ & 1));
+	}
+	return nsym;
+}
+
+static void *dl_mmap(size_t n)
+{
+	void *p;
+	int prot = PROT_READ|PROT_WRITE, flags = MAP_ANONYMOUS|MAP_PRIVATE;
+#ifdef SYS_mmap2
+	p = (void *)__syscall(SYS_mmap2, 0, n, prot, flags, -1, 0);
+#else
+	p = (void *)__syscall(SYS_mmap, 0, n, prot, flags, -1, 0);
+#endif
+	return p == MAP_FAILED ? 0 : p;
+}
+
+static void makefuncdescs(struct dso *p)
+{
+	static int self_done;
+	size_t nsym = count_syms(p);
+	size_t i, size = nsym * sizeof(*p->funcdescs);
+
+	if (!self_done) {
+		p->funcdescs = dl_mmap(size);
+		self_done = 1;
+	} else {
+		p->funcdescs = malloc(size);
+	}
+	if (!p->funcdescs) {
+		if (!runtime) a_crash();
+		error("Error allocating function descriptors for %s", p->name);
+		longjmp(*rtld_fail, 1);
+	}
+	for (i=0; i<nsym; i++) {
+		if ((p->syms[i].st_info&0xf)==STT_FUNC && p->syms[i].st_shndx) {
+			p->funcdescs[i].addr = laddr(p, p->syms[i].st_value);
+			p->funcdescs[i].got = p->got;
+		} else {
+			p->funcdescs[i].addr = 0;
+			p->funcdescs[i].got = 0;
+		}
+	}
+}
+
+static struct dso *load_library(const char *name, struct dso *needed_by)
+{
+	char buf[2*NAME_MAX+2];
+	const char *pathname;
+	unsigned char *map;
+	struct dso *p, temp_dso = {0};
+	int fd;
+	struct stat st;
+	size_t alloc_size;
+	int n_th = 0;
+	int is_self = 0;
+
+	if (!*name) {
+		errno = EINVAL;
+		return 0;
+	}
+
+	/* Catch and block attempts to reload the implementation itself */
+	if (name[0]=='l' && name[1]=='i' && name[2]=='b') {
+		static const char *rp, reserved[] =
+			"c\0pthread\0rt\0m\0dl\0util\0xnet\0";
+		char *z = strchr(name, '.');
+		if (z) {
+			size_t l = z-name;
+			for (rp=reserved; *rp && strncmp(name+3, rp, l-3); rp+=strlen(rp)+1);
+			if (*rp) {
+				if (ldd_mode) {
+					/* Track which names have been resolved
+					 * and only report each one once. */
+					static unsigned reported;
+					unsigned mask = 1U<<(rp-reserved);
+					if (!(reported & mask)) {
+						reported |= mask;
+						dprintf(1, "\t%s => %s (%p)\n",
+							name, ldso.name,
+							ldso.base);
+					}
+				}
+				is_self = 1;
+			}
+		}
+	}
+	if (!strcmp(name, ldso.name)) is_self = 1;
+	if (is_self) {
+		if (!ldso.prev) {
+			tail->next = &ldso;
+			ldso.prev = tail;
+			tail = ldso.next ? ldso.next : &ldso;
+		}
+		return &ldso;
+	}
+	if (strchr(name, '/')) {
+		pathname = name;
+		fd = open(name, O_RDONLY|O_CLOEXEC);
+	} else {
+		/* Search for the name to see if it's already loaded */
+		for (p=head->next; p; p=p->next) {
+			if (p->shortname && !strcmp(p->shortname, name)) {
+				p->refcnt++;
+				return p;
+			}
+		}
+		if (strlen(name) > NAME_MAX) return 0;
+		fd = -1;
+		if (env_path) fd = path_open(name, env_path, buf, sizeof buf);
+		for (p=needed_by; fd == -1 && p; p=p->needed_by) {
+			if (fixup_rpath(p, buf, sizeof buf) < 0)
+				fd = -2; /* Inhibit further search. */
+			if (p->rpath)
+				fd = path_open(name, p->rpath, buf, sizeof buf);
+		}
+		if (fd == -1) {
+			if (!sys_path) {
+				char *prefix = 0;
+				size_t prefix_len;
+				if (ldso.name[0]=='/') {
+					char *s, *t, *z;
+					for (s=t=z=ldso.name; *s; s++)
+						if (*s=='/') z=t, t=s;
+					prefix_len = z-ldso.name;
+					if (prefix_len < PATH_MAX)
+						prefix = ldso.name;
+				}
+				if (!prefix) {
+					prefix = "";
+					prefix_len = 0;
+				}
+				char etc_ldso_path[prefix_len + 1
+					+ sizeof "/etc/ld-musl-" LDSO_ARCH ".path"];
+				snprintf(etc_ldso_path, sizeof etc_ldso_path,
+					"%.*s/etc/ld-musl-" LDSO_ARCH ".path",
+					(int)prefix_len, prefix);
+				FILE *f = fopen(etc_ldso_path, "rbe");
+				if (f) {
+					if (getdelim(&sys_path, (size_t[1]){0}, 0, f) <= 0) {
+						free(sys_path);
+						sys_path = "";
+					}
+					fclose(f);
+				} else if (errno != ENOENT) {
+					sys_path = "";
+				}
+			}
+			if (!sys_path) sys_path = "/lib:/usr/local/lib:/usr/lib";
+			fd = path_open(name, sys_path, buf, sizeof buf);
+		}
+		pathname = buf;
+	}
+	if (fd < 0) return 0;
+	if (fstat(fd, &st) < 0) {
+		close(fd);
+		return 0;
+	}
+	for (p=head->next; p; p=p->next) {
+		if (p->dev == st.st_dev && p->ino == st.st_ino) {
+			/* If this library was previously loaded with a
+			 * pathname but a search found the same inode,
+			 * setup its shortname so it can be found by name. */
+			if (!p->shortname && pathname != name)
+				p->shortname = strrchr(p->name, '/')+1;
+			close(fd);
+			p->refcnt++;
+			return p;
+		}
+	}
+	map = noload ? 0 : map_library(fd, &temp_dso);
+	close(fd);
+	if (!map) return 0;
+
+	/* Allocate storage for the new DSO. When there is TLS, this
+	 * storage must include a reservation for all pre-existing
+	 * threads to obtain copies of both the new TLS, and an
+	 * extended DTV capable of storing an additional slot for
+	 * the newly-loaded DSO. */
+	alloc_size = sizeof *p + strlen(pathname) + 1;
+	if (runtime && temp_dso.tls.image) {
+		size_t per_th = temp_dso.tls.size + temp_dso.tls.align
+			+ sizeof(void *) * (tls_cnt+3);
+		n_th = libc.threads_minus_1 + 1;
+		if (n_th > SSIZE_MAX / per_th) alloc_size = SIZE_MAX;
+		else alloc_size += n_th * per_th;
+	}
+	p = calloc(1, alloc_size);
+	if (!p) {
+		unmap_library(&temp_dso);
+		return 0;
+	}
+	memcpy(p, &temp_dso, sizeof temp_dso);
+	decode_dyn(p);
+	p->dev = st.st_dev;
+	p->ino = st.st_ino;
+	p->refcnt = 1;
+	p->needed_by = needed_by;
+	p->name = p->buf;
+	strcpy(p->name, pathname);
+	/* Add a shortname only if name arg was not an explicit pathname. */
+	if (pathname != name) p->shortname = strrchr(p->name, '/')+1;
+	if (p->tls.image) {
+		p->tls_id = ++tls_cnt;
+		tls_align = MAXP2(tls_align, p->tls.align);
+#ifdef TLS_ABOVE_TP
+		p->tls.offset = tls_offset + ( (tls_align-1) &
+			-(tls_offset + (uintptr_t)p->tls.image) );
+		tls_offset += p->tls.size;
+#else
+		tls_offset += p->tls.size + p->tls.align - 1;
+		tls_offset -= (tls_offset + (uintptr_t)p->tls.image)
+			& (p->tls.align-1);
+		p->tls.offset = tls_offset;
+#endif
+		p->new_dtv = (void *)(-sizeof(size_t) &
+			(uintptr_t)(p->name+strlen(p->name)+sizeof(size_t)));
+		p->new_tls = (void *)(p->new_dtv + n_th*(tls_cnt+1));
+		if (tls_tail) tls_tail->next = &p->tls;
+		else libc.tls_head = &p->tls;
+		tls_tail = &p->tls;
+	}
+
+	tail->next = p;
+	p->prev = tail;
+	tail = p;
+
+	if (DL_FDPIC) makefuncdescs(p);
+
+	if (ldd_mode) dprintf(1, "\t%s => %s (%p)\n", name, pathname, p->base);
+
+	return p;
+}
+
+static void load_deps(struct dso *p)
+{
+	size_t i, ndeps=0;
+	struct dso ***deps = &p->deps, **tmp, *dep;
+	for (; p; p=p->next) {
+		for (i=0; p->dynv[i]; i+=2) {
+			if (p->dynv[i] != DT_NEEDED) continue;
+			dep = load_library(p->strings + p->dynv[i+1], p);
+			if (!dep) {
+				error("Error loading shared library %s: %m (needed by %s)",
+					p->strings + p->dynv[i+1], p->name);
+				if (runtime) longjmp(*rtld_fail, 1);
+				continue;
+			}
+			if (runtime) {
+				tmp = realloc(*deps, sizeof(*tmp)*(ndeps+2));
+				if (!tmp) longjmp(*rtld_fail, 1);
+				tmp[ndeps++] = dep;
+				tmp[ndeps] = 0;
+				*deps = tmp;
+			}
+		}
+	}
+}
+
+static void load_preload(char *s)
+{
+	int tmp;
+	char *z;
+	for (z=s; *z; s=z) {
+		for (   ; *s && (isspace(*s) || *s==':'); s++);
+		for (z=s; *z && !isspace(*z) && *z!=':'; z++);
+		tmp = *z;
+		*z = 0;
+		load_library(s, 0);
+		*z = tmp;
+	}
+}
+
+static void make_global(struct dso *p)
+{
+	for (; p; p=p->next) p->global = 1;
+}
+
+static void do_mips_relocs(struct dso *p, size_t *got)
+{
+	size_t i, j, rel[2];
+	unsigned char *base = p->base;
+	i=0; search_vec(p->dynv, &i, DT_MIPS_LOCAL_GOTNO);
+	if (p==&ldso) {
+		got += i;
+	} else {
+		while (i--) *got++ += (size_t)base;
+	}
+	j=0; search_vec(p->dynv, &j, DT_MIPS_GOTSYM);
+	i=0; search_vec(p->dynv, &i, DT_MIPS_SYMTABNO);
+	Sym *sym = p->syms + j;
+	rel[0] = (unsigned char *)got - base;
+	for (i-=j; i; i--, sym++, rel[0]+=sizeof(size_t)) {
+		rel[1] = sym-p->syms << 8 | R_MIPS_JUMP_SLOT;
+		do_relocs(p, rel, sizeof rel, 2);
+	}
+}
+
+static void reloc_all(struct dso *p)
+{
+	size_t dyn[DYN_CNT];
+	for (; p; p=p->next) {
+		if (p->relocated) continue;
+		decode_vec(p->dynv, dyn, DYN_CNT);
+		if (NEED_MIPS_GOT_RELOCS)
+			do_mips_relocs(p, laddr(p, dyn[DT_PLTGOT]));
+		do_relocs(p, laddr(p, dyn[DT_JMPREL]), dyn[DT_PLTRELSZ],
+			2+(dyn[DT_PLTREL]==DT_RELA));
+		do_relocs(p, laddr(p, dyn[DT_REL]), dyn[DT_RELSZ], 2);
+		do_relocs(p, laddr(p, dyn[DT_RELA]), dyn[DT_RELASZ], 3);
+
+		if (head != &ldso && p->relro_start != p->relro_end &&
+		    mprotect(laddr(p, p->relro_start), p->relro_end-p->relro_start, PROT_READ)
+		    && errno != ENOSYS) {
+			error("Error relocating %s: RELRO protection failed: %m",
+				p->name);
+			if (runtime) longjmp(*rtld_fail, 1);
+		}
+
+		p->relocated = 1;
+	}
+}
+
+static void kernel_mapped_dso(struct dso *p)
+{
+	size_t min_addr = -1, max_addr = 0, cnt;
+	Phdr *ph = p->phdr;
+	for (cnt = p->phnum; cnt--; ph = (void *)((char *)ph + p->phentsize)) {
+		if (ph->p_type == PT_DYNAMIC) {
+			p->dynv = laddr(p, ph->p_vaddr);
+		} else if (ph->p_type == PT_GNU_RELRO) {
+			p->relro_start = ph->p_vaddr & -PAGE_SIZE;
+			p->relro_end = (ph->p_vaddr + ph->p_memsz) & -PAGE_SIZE;
+		}
+		if (ph->p_type != PT_LOAD) continue;
+		if (ph->p_vaddr < min_addr)
+			min_addr = ph->p_vaddr;
+		if (ph->p_vaddr+ph->p_memsz > max_addr)
+			max_addr = ph->p_vaddr+ph->p_memsz;
+	}
+	min_addr &= -PAGE_SIZE;
+	max_addr = (max_addr + PAGE_SIZE-1) & -PAGE_SIZE;
+	p->map = p->base + min_addr;
+	p->map_len = max_addr - min_addr;
+	p->kernel_mapped = 1;
+}
+
+void __libc_exit_fini()
+{
+	struct dso *p;
+	size_t dyn[DYN_CNT];
+	for (p=fini_head; p; p=p->fini_next) {
+		if (!p->constructed) continue;
+		decode_vec(p->dynv, dyn, DYN_CNT);
+		if (dyn[0] & (1<<DT_FINI_ARRAY)) {
+			size_t n = dyn[DT_FINI_ARRAYSZ]/sizeof(size_t);
+			size_t *fn = (size_t *)laddr(p, dyn[DT_FINI_ARRAY])+n;
+			while (n--) ((void (*)(void))*--fn)();
+		}
+#ifndef NO_LEGACY_INITFINI
+		if ((dyn[0] & (1<<DT_FINI)) && dyn[DT_FINI])
+			fpaddr(p, dyn[DT_FINI])();
+#endif
+	}
+}
+
+static void do_init_fini(struct dso *p)
+{
+	size_t dyn[DYN_CNT];
+	int need_locking = libc.threads_minus_1;
+	/* Allow recursive calls that arise when a library calls
+	 * dlopen from one of its constructors, but block any
+	 * other threads until all ctors have finished. */
+	if (need_locking) pthread_mutex_lock(&init_fini_lock);
+	for (; p; p=p->prev) {
+		if (p->constructed) continue;
+		p->constructed = 1;
+		decode_vec(p->dynv, dyn, DYN_CNT);
+		if (dyn[0] & ((1<<DT_FINI) | (1<<DT_FINI_ARRAY))) {
+			p->fini_next = fini_head;
+			fini_head = p;
+		}
+#ifndef NO_LEGACY_INITFINI
+		if ((dyn[0] & (1<<DT_INIT)) && dyn[DT_INIT])
+			fpaddr(p, dyn[DT_INIT])();
+#endif
+		if (dyn[0] & (1<<DT_INIT_ARRAY)) {
+			size_t n = dyn[DT_INIT_ARRAYSZ]/sizeof(size_t);
+			size_t *fn = laddr(p, dyn[DT_INIT_ARRAY]);
+			while (n--) ((void (*)(void))*fn++)();
+		}
+		if (!need_locking && libc.threads_minus_1) {
+			need_locking = 1;
+			pthread_mutex_lock(&init_fini_lock);
+		}
+	}
+	if (need_locking) pthread_mutex_unlock(&init_fini_lock);
+}
+
+void __libc_start_init(void)
+{
+	do_init_fini(tail);
+}
+
+static void dl_debug_state(void)
+{
+}
+
+weak_alias(dl_debug_state, _dl_debug_state);
+
+void __init_tls(size_t *auxv)
+{
+}
+
+__attribute__((__visibility__("hidden")))
+void *__tls_get_new(size_t *v)
+{
+	pthread_t self = __pthread_self();
+
+	/* Block signals to make accessing new TLS async-signal-safe */
+	sigset_t set;
+	__block_all_sigs(&set);
+	if (v[0]<=(size_t)self->dtv[0]) {
+		__restore_sigs(&set);
+		return (char *)self->dtv[v[0]]+v[1]+DTP_OFFSET;
+	}
+
+	/* This is safe without any locks held because, if the caller
+	 * is able to request the Nth entry of the DTV, the DSO list
+	 * must be valid at least that far out and it was synchronized
+	 * at program startup or by an already-completed call to dlopen. */
+	struct dso *p;
+	for (p=head; p->tls_id != v[0]; p=p->next);
+
+	/* Get new DTV space from new DSO if needed */
+	if (v[0] > (size_t)self->dtv[0]) {
+		void **newdtv = p->new_dtv +
+			(v[0]+1)*a_fetch_add(&p->new_dtv_idx,1);
+		memcpy(newdtv, self->dtv,
+			((size_t)self->dtv[0]+1) * sizeof(void *));
+		newdtv[0] = (void *)v[0];
+		self->dtv = self->dtv_copy = newdtv;
+	}
+
+	/* Get new TLS memory from all new DSOs up to the requested one */
+	unsigned char *mem;
+	for (p=head; ; p=p->next) {
+		if (!p->tls_id || self->dtv[p->tls_id]) continue;
+		mem = p->new_tls + (p->tls.size + p->tls.align)
+			* a_fetch_add(&p->new_tls_idx,1);
+		mem += ((uintptr_t)p->tls.image - (uintptr_t)mem)
+			& (p->tls.align-1);
+		self->dtv[p->tls_id] = mem;
+		memcpy(mem, p->tls.image, p->tls.len);
+		if (p->tls_id == v[0]) break;
+	}
+	__restore_sigs(&set);
+	return mem + v[1] + DTP_OFFSET;
+}
+
+static void update_tls_size()
+{
+	libc.tls_cnt = tls_cnt;
+	libc.tls_align = tls_align;
+	libc.tls_size = ALIGN(
+		(1+tls_cnt) * sizeof(void *) +
+		tls_offset +
+		sizeof(struct pthread) +
+		tls_align * 2,
+	tls_align);
+}
+
+/* Stage 1 of the dynamic linker is defined in dlstart.c. It calls the
+ * following stage 2 and stage 3 functions via primitive symbolic lookup
+ * since it does not have access to their addresses to begin with. */
+
+/* Stage 2 of the dynamic linker is called after relative relocations 
+ * have been processed. It can make function calls to static functions
+ * and access string literals and static data, but cannot use extern
+ * symbols. Its job is to perform symbolic relocations on the dynamic
+ * linker itself, but some of the relocations performed may need to be
+ * replaced later due to copy relocations in the main program. */
+
+__attribute__((__visibility__("hidden")))
+void __dls2(unsigned char *base, size_t *sp)
+{
+	if (DL_FDPIC) {
+		void *p1 = (void *)sp[-2];
+		void *p2 = (void *)sp[-1];
+		if (!p1) {
+			size_t *auxv, aux[AUX_CNT];
+			for (auxv=sp+1+*sp+1; *auxv; auxv++); auxv++;
+			decode_vec(auxv, aux, AUX_CNT);
+			if (aux[AT_BASE]) ldso.base = (void *)aux[AT_BASE];
+			else ldso.base = (void *)(aux[AT_PHDR] & -4096);
+		}
+		app_loadmap = p2 ? p1 : 0;
+		ldso.loadmap = p2 ? p2 : p1;
+		ldso.base = laddr(&ldso, 0);
+	} else {
+		ldso.base = base;
+	}
+	Ehdr *ehdr = (void *)ldso.base;
+	ldso.name = ldso.shortname = "libc.so";
+	ldso.global = 1;
+	ldso.phnum = ehdr->e_phnum;
+	ldso.phdr = laddr(&ldso, ehdr->e_phoff);
+	ldso.phentsize = ehdr->e_phentsize;
+	kernel_mapped_dso(&ldso);
+	decode_dyn(&ldso);
+
+	if (DL_FDPIC) makefuncdescs(&ldso);
+
+	/* Prepare storage for to save clobbered REL addends so they
+	 * can be reused in stage 3. There should be very few. If
+	 * something goes wrong and there are a huge number, abort
+	 * instead of risking stack overflow. */
+	size_t dyn[DYN_CNT];
+	decode_vec(ldso.dynv, dyn, DYN_CNT);
+	size_t *rel = laddr(&ldso, dyn[DT_REL]);
+	size_t rel_size = dyn[DT_RELSZ];
+	size_t symbolic_rel_cnt = 0;
+	apply_addends_to = rel;
+	for (; rel_size; rel+=2, rel_size-=2*sizeof(size_t))
+		if (!IS_RELATIVE(rel[1], ldso.syms)) symbolic_rel_cnt++;
+	if (symbolic_rel_cnt >= ADDEND_LIMIT) a_crash();
+	size_t addends[symbolic_rel_cnt+1];
+	saved_addends = addends;
+
+	head = &ldso;
+	reloc_all(&ldso);
+
+	ldso.relocated = 0;
+
+	/* Call dynamic linker stage-3, __dls3, looking it up
+	 * symbolically as a barrier against moving the address
+	 * load across the above relocation processing. */
+	struct symdef dls3_def = find_sym(&ldso, "__dls3", 0);
+	if (DL_FDPIC) ((stage3_func)&ldso.funcdescs[dls3_def.sym-ldso.syms])(sp);
+	else ((stage3_func)laddr(&ldso, dls3_def.sym->st_value))(sp);
+}
+
+/* Stage 3 of the dynamic linker is called with the dynamic linker/libc
+ * fully functional. Its job is to load (if not already loaded) and
+ * process dependencies and relocations for the main application and
+ * transfer control to its entry point. */
+
+_Noreturn void __dls3(size_t *sp)
+{
+	static struct dso app, vdso;
+	size_t aux[AUX_CNT], *auxv;
+	size_t i;
+	char *env_preload=0;
+	size_t vdso_base;
+	int argc = *sp;
+	char **argv = (void *)(sp+1);
+	char **argv_orig = argv;
+	char **envp = argv+argc+1;
+
+	/* Find aux vector just past environ[] and use it to initialize
+	 * global data that may be needed before we can make syscalls. */
+	__environ = envp;
+	for (i=argc+1; argv[i]; i++);
+	libc.auxv = auxv = (void *)(argv+i+1);
+	decode_vec(auxv, aux, AUX_CNT);
+	__hwcap = aux[AT_HWCAP];
+	libc.page_size = aux[AT_PAGESZ];
+	libc.secure = ((aux[0]&0x7800)!=0x7800 || aux[AT_UID]!=aux[AT_EUID]
+		|| aux[AT_GID]!=aux[AT_EGID] || aux[AT_SECURE]);
+
+	/* Setup early thread pointer in builtin_tls for ldso/libc itself to
+	 * use during dynamic linking. If possible it will also serve as the
+	 * thread pointer at runtime. */
+	libc.tls_size = sizeof builtin_tls;
+	libc.tls_align = tls_align;
+	if (__init_tp(__copy_tls((void *)builtin_tls)) < 0) {
+		a_crash();
+	}
+
+	/* Only trust user/env if kernel says we're not suid/sgid */
+	if (!libc.secure) {
+		env_path = getenv("LD_LIBRARY_PATH");
+		env_preload = getenv("LD_PRELOAD");
+	}
+
+	/* If the main program was already loaded by the kernel,
+	 * AT_PHDR will point to some location other than the dynamic
+	 * linker's program headers. */
+	if (aux[AT_PHDR] != (size_t)ldso.phdr) {
+		size_t interp_off = 0;
+		size_t tls_image = 0;
+		/* Find load address of the main program, via AT_PHDR vs PT_PHDR. */
+		Phdr *phdr = app.phdr = (void *)aux[AT_PHDR];
+		app.phnum = aux[AT_PHNUM];
+		app.phentsize = aux[AT_PHENT];
+		for (i=aux[AT_PHNUM]; i; i--, phdr=(void *)((char *)phdr + aux[AT_PHENT])) {
+			if (phdr->p_type == PT_PHDR)
+				app.base = (void *)(aux[AT_PHDR] - phdr->p_vaddr);
+			else if (phdr->p_type == PT_INTERP)
+				interp_off = (size_t)phdr->p_vaddr;
+			else if (phdr->p_type == PT_TLS) {
+				tls_image = phdr->p_vaddr;
+				app.tls.len = phdr->p_filesz;
+				app.tls.size = phdr->p_memsz;
+				app.tls.align = phdr->p_align;
+			}
+		}
+		if (DL_FDPIC) app.loadmap = app_loadmap;
+		if (app.tls.size) app.tls.image = laddr(&app, tls_image);
+		if (interp_off) ldso.name = laddr(&app, interp_off);
+		if ((aux[0] & (1UL<<AT_EXECFN))
+		    && strncmp((char *)aux[AT_EXECFN], "/proc/", 6))
+			app.name = (char *)aux[AT_EXECFN];
+		else
+			app.name = argv[0];
+		kernel_mapped_dso(&app);
+	} else {
+		int fd;
+		char *ldname = argv[0];
+		size_t l = strlen(ldname);
+		if (l >= 3 && !strcmp(ldname+l-3, "ldd")) ldd_mode = 1;
+		argv++;
+		while (argv[0] && argv[0][0]=='-' && argv[0][1]=='-') {
+			char *opt = argv[0]+2;
+			*argv++ = (void *)-1;
+			if (!*opt) {
+				break;
+			} else if (!memcmp(opt, "list", 5)) {
+				ldd_mode = 1;
+			} else if (!memcmp(opt, "library-path", 12)) {
+				if (opt[12]=='=') env_path = opt+13;
+				else if (opt[12]) *argv = 0;
+				else if (*argv) env_path = *argv++;
+			} else if (!memcmp(opt, "preload", 7)) {
+				if (opt[7]=='=') env_preload = opt+8;
+				else if (opt[7]) *argv = 0;
+				else if (*argv) env_preload = *argv++;
+			} else {
+				argv[0] = 0;
+			}
+		}
+		argv[-1] = (void *)(argc - (argv-argv_orig));
+		if (!argv[0]) {
+			dprintf(2, "musl libc (" LDSO_ARCH ")\n"
+				"Version %s\n"
+				"Dynamic Program Loader\n"
+				"Usage: %s [options] [--] pathname%s\n",
+				__libc_get_version(), ldname,
+				ldd_mode ? "" : " [args]");
+			_exit(1);
+		}
+		fd = open(argv[0], O_RDONLY);
+		if (fd < 0) {
+			dprintf(2, "%s: cannot load %s: %s\n", ldname, argv[0], strerror(errno));
+			_exit(1);
+		}
+		runtime = 1;
+		Ehdr *ehdr = (void *)map_library(fd, &app);
+		if (!ehdr) {
+			dprintf(2, "%s: %s: Not a valid dynamic program\n", ldname, argv[0]);
+			_exit(1);
+		}
+		runtime = 0;
+		close(fd);
+		ldso.name = ldname;
+		app.name = argv[0];
+		aux[AT_ENTRY] = (size_t)laddr(&app, ehdr->e_entry);
+		/* Find the name that would have been used for the dynamic
+		 * linker had ldd not taken its place. */
+		if (ldd_mode) {
+			for (i=0; i<app.phnum; i++) {
+				if (app.phdr[i].p_type == PT_INTERP)
+					ldso.name = laddr(&app, app.phdr[i].p_vaddr);
+			}
+			dprintf(1, "\t%s (%p)\n", ldso.name, ldso.base);
+		}
+	}
+	if (app.tls.size) {
+		libc.tls_head = tls_tail = &app.tls;
+		app.tls_id = tls_cnt = 1;
+#ifdef TLS_ABOVE_TP
+		app.tls.offset = 0;
+		tls_offset = app.tls.size
+			+ ( -((uintptr_t)app.tls.image + app.tls.size)
+			& (app.tls.align-1) );
+#else
+		tls_offset = app.tls.offset = app.tls.size
+			+ ( -((uintptr_t)app.tls.image + app.tls.size)
+			& (app.tls.align-1) );
+#endif
+		tls_align = MAXP2(tls_align, app.tls.align);
+	}
+	app.global = 1;
+	decode_dyn(&app);
+	if (DL_FDPIC) {
+		makefuncdescs(&app);
+		if (!app.loadmap) {
+			app.loadmap = (void *)&app_dummy_loadmap;
+			app.loadmap->nsegs = 1;
+			app.loadmap->segs[0].addr = (size_t)app.map;
+			app.loadmap->segs[0].p_vaddr = (size_t)app.map
+				- (size_t)app.base;
+			app.loadmap->segs[0].p_memsz = app.map_len;
+		}
+		argv[-3] = (void *)app.loadmap;
+	}
+
+	/* Attach to vdso, if provided by the kernel */
+	if (search_vec(auxv, &vdso_base, AT_SYSINFO_EHDR)) {
+		Ehdr *ehdr = (void *)vdso_base;
+		Phdr *phdr = vdso.phdr = (void *)(vdso_base + ehdr->e_phoff);
+		vdso.phnum = ehdr->e_phnum;
+		vdso.phentsize = ehdr->e_phentsize;
+		for (i=ehdr->e_phnum; i; i--, phdr=(void *)((char *)phdr + ehdr->e_phentsize)) {
+			if (phdr->p_type == PT_DYNAMIC)
+				vdso.dynv = (void *)(vdso_base + phdr->p_offset);
+			if (phdr->p_type == PT_LOAD)
+				vdso.base = (void *)(vdso_base - phdr->p_vaddr + phdr->p_offset);
+		}
+		vdso.name = "";
+		vdso.shortname = "linux-gate.so.1";
+		vdso.global = 1;
+		vdso.relocated = 1;
+		decode_dyn(&vdso);
+		vdso.prev = &ldso;
+		ldso.next = &vdso;
+	}
+
+	/* Initial dso chain consists only of the app. */
+	head = tail = &app;
+
+	/* Donate unused parts of app and library mapping to malloc */
+	reclaim_gaps(&app);
+	reclaim_gaps(&ldso);
+
+	/* Load preload/needed libraries, add their symbols to the global
+	 * namespace, and perform all remaining relocations. */
+	if (env_preload) load_preload(env_preload);
+	load_deps(&app);
+	make_global(&app);
+
+#ifndef DYNAMIC_IS_RO
+	for (i=0; app.dynv[i]; i+=2)
+		if (app.dynv[i]==DT_DEBUG)
+			app.dynv[i+1] = (size_t)&debug;
+#endif
+
+	/* The main program must be relocated LAST since it may contin
+	 * copy relocations which depend on libraries' relocations. */
+	reloc_all(app.next);
+	reloc_all(&app);
+
+	update_tls_size();
+	if (libc.tls_size > sizeof builtin_tls || tls_align > MIN_TLS_ALIGN) {
+		void *initial_tls = calloc(libc.tls_size, 1);
+		if (!initial_tls) {
+			dprintf(2, "%s: Error getting %zu bytes thread-local storage: %m\n",
+				argv[0], libc.tls_size);
+			_exit(127);
+		}
+		if (__init_tp(__copy_tls(initial_tls)) < 0) {
+			a_crash();
+		}
+	} else {
+		size_t tmp_tls_size = libc.tls_size;
+		pthread_t self = __pthread_self();
+		/* Temporarily set the tls size to the full size of
+		 * builtin_tls so that __copy_tls will use the same layout
+		 * as it did for before. Then check, just to be safe. */
+		libc.tls_size = sizeof builtin_tls;
+		if (__copy_tls((void*)builtin_tls) != self) a_crash();
+		libc.tls_size = tmp_tls_size;
+	}
+	static_tls_cnt = tls_cnt;
+
+	if (ldso_fail) _exit(127);
+	if (ldd_mode) _exit(0);
+
+	/* Switch to runtime mode: any further failures in the dynamic
+	 * linker are a reportable failure rather than a fatal startup
+	 * error. */
+	runtime = 1;
+
+	debug.ver = 1;
+	debug.bp = dl_debug_state;
+	debug.head = head;
+	debug.base = ldso.base;
+	debug.state = 0;
+	_dl_debug_state();
+
+	errno = 0;
+
+	CRTJMP((void *)aux[AT_ENTRY], argv-1);
+	for(;;);
+}
+
+void *dlopen(const char *file, int mode)
+{
+	struct dso *volatile p, *orig_tail, *next;
+	struct tls_module *orig_tls_tail;
+	size_t orig_tls_cnt, orig_tls_offset, orig_tls_align;
+	size_t i;
+	int cs;
+	jmp_buf jb;
+
+	if (!file) return head;
+
+	pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs);
+	pthread_rwlock_wrlock(&lock);
+	__inhibit_ptc();
+
+	p = 0;
+	orig_tls_tail = tls_tail;
+	orig_tls_cnt = tls_cnt;
+	orig_tls_offset = tls_offset;
+	orig_tls_align = tls_align;
+	orig_tail = tail;
+	noload = mode & RTLD_NOLOAD;
+
+	rtld_fail = &jb;
+	if (setjmp(*rtld_fail)) {
+		/* Clean up anything new that was (partially) loaded */
+		if (p && p->deps) for (i=0; p->deps[i]; i++)
+			if (p->deps[i]->global < 0)
+				p->deps[i]->global = 0;
+		for (p=orig_tail->next; p; p=next) {
+			next = p->next;
+			while (p->td_index) {
+				void *tmp = p->td_index->next;
+				free(p->td_index);
+				p->td_index = tmp;
+			}
+			free(p->funcdescs);
+			if (p->rpath != p->rpath_orig)
+				free(p->rpath);
+			free(p->deps);
+			unmap_library(p);
+			free(p);
+		}
+		if (!orig_tls_tail) libc.tls_head = 0;
+		tls_tail = orig_tls_tail;
+		tls_cnt = orig_tls_cnt;
+		tls_offset = orig_tls_offset;
+		tls_align = orig_tls_align;
+		tail = orig_tail;
+		tail->next = 0;
+		p = 0;
+		goto end;
+	} else p = load_library(file, head);
+
+	if (!p) {
+		error(noload ?
+			"Library %s is not already loaded" :
+			"Error loading shared library %s: %m",
+			file);
+		goto end;
+	}
+
+	/* First load handling */
+	if (!p->deps) {
+		load_deps(p);
+		if (p->deps) for (i=0; p->deps[i]; i++)
+			if (!p->deps[i]->global)
+				p->deps[i]->global = -1;
+		if (!p->global) p->global = -1;
+		reloc_all(p);
+		if (p->deps) for (i=0; p->deps[i]; i++)
+			if (p->deps[i]->global < 0)
+				p->deps[i]->global = 0;
+		if (p->global < 0) p->global = 0;
+	}
+
+	if (mode & RTLD_GLOBAL) {
+		if (p->deps) for (i=0; p->deps[i]; i++)
+			p->deps[i]->global = 1;
+		p->global = 1;
+	}
+
+	update_tls_size();
+	_dl_debug_state();
+	orig_tail = tail;
+end:
+	__release_ptc();
+	if (p) gencnt++;
+	pthread_rwlock_unlock(&lock);
+	if (p) do_init_fini(orig_tail);
+	pthread_setcancelstate(cs, 0);
+	return p;
+}
+
+__attribute__((__visibility__("hidden")))
+int __dl_invalid_handle(void *h)
+{
+	struct dso *p;
+	for (p=head; p; p=p->next) if (h==p) return 0;
+	error("Invalid library handle %p", (void *)h);
+	return 1;
+}
+
+static void *addr2dso(size_t a)
+{
+	struct dso *p;
+	size_t i;
+	if (DL_FDPIC) for (p=head; p; p=p->next) {
+		i = count_syms(p);
+		if (a-(size_t)p->funcdescs < i*sizeof(*p->funcdescs))
+			return p;
+	}
+	for (p=head; p; p=p->next) {
+		if (DL_FDPIC && p->loadmap) {
+			for (i=0; i<p->loadmap->nsegs; i++) {
+				if (a-p->loadmap->segs[i].p_vaddr
+				    < p->loadmap->segs[i].p_memsz)
+					return p;
+			}
+		} else {
+			if (a-(size_t)p->map < p->map_len)
+				return p;
+		}
+	}
+	return 0;
+}
+
+void *__tls_get_addr(size_t *);
+
+static void *do_dlsym(struct dso *p, const char *s, void *ra)
+{
+	size_t i;
+	uint32_t h = 0, gh = 0, *ght;
+	Sym *sym;
+	if (p == head || p == RTLD_DEFAULT || p == RTLD_NEXT) {
+		if (p == RTLD_DEFAULT) {
+			p = head;
+		} else if (p == RTLD_NEXT) {
+			p = addr2dso((size_t)ra);
+			if (!p) p=head;
+			p = p->next;
+		}
+		struct symdef def = find_sym(p, s, 0);
+		if (!def.sym) goto failed;
+		if ((def.sym->st_info&0xf) == STT_TLS)
+			return __tls_get_addr((size_t []){def.dso->tls_id, def.sym->st_value});
+		if (DL_FDPIC && (def.sym->st_info&0xf) == STT_FUNC)
+			return def.dso->funcdescs + (def.sym - def.dso->syms);
+		return laddr(def.dso, def.sym->st_value);
+	}
+	if (__dl_invalid_handle(p))
+		return 0;
+	if ((ght = p->ghashtab)) {
+		gh = gnu_hash(s);
+		sym = gnu_lookup(gh, ght, p, s);
+	} else {
+		h = sysv_hash(s);
+		sym = sysv_lookup(s, h, p);
+	}
+	if (sym && (sym->st_info&0xf) == STT_TLS)
+		return __tls_get_addr((size_t []){p->tls_id, sym->st_value});
+	if (DL_FDPIC && sym && sym->st_shndx && (sym->st_info&0xf) == STT_FUNC)
+		return p->funcdescs + (sym - p->syms);
+	if (sym && sym->st_value && (1<<(sym->st_info&0xf) & OK_TYPES))
+		return laddr(p, sym->st_value);
+	if (p->deps) for (i=0; p->deps[i]; i++) {
+		if ((ght = p->deps[i]->ghashtab)) {
+			if (!gh) gh = gnu_hash(s);
+			sym = gnu_lookup(gh, ght, p->deps[i], s);
+		} else {
+			if (!h) h = sysv_hash(s);
+			sym = sysv_lookup(s, h, p->deps[i]);
+		}
+		if (sym && (sym->st_info&0xf) == STT_TLS)
+			return __tls_get_addr((size_t []){p->deps[i]->tls_id, sym->st_value});
+		if (DL_FDPIC && sym && sym->st_shndx && (sym->st_info&0xf) == STT_FUNC)
+			return p->deps[i]->funcdescs + (sym - p->deps[i]->syms);
+		if (sym && sym->st_value && (1<<(sym->st_info&0xf) & OK_TYPES))
+			return laddr(p->deps[i], sym->st_value);
+	}
+failed:
+	error("Symbol not found: %s", s);
+	return 0;
+}
+
+int dladdr(const void *addr, Dl_info *info)
+{
+	struct dso *p;
+	Sym *sym, *bestsym;
+	uint32_t nsym;
+	char *strings;
+	void *best = 0;
+
+	pthread_rwlock_rdlock(&lock);
+	p = addr2dso((size_t)addr);
+	pthread_rwlock_unlock(&lock);
+
+	if (!p) return 0;
+
+	sym = p->syms;
+	strings = p->strings;
+	nsym = count_syms(p);
+
+	if (DL_FDPIC) {
+		size_t idx = ((size_t)addr-(size_t)p->funcdescs)
+			/ sizeof(*p->funcdescs);
+		if (idx < nsym && (sym[idx].st_info&0xf) == STT_FUNC) {
+			best = p->funcdescs + idx;
+			bestsym = sym + idx;
+		}
+	}
+
+	if (!best) for (; nsym; nsym--, sym++) {
+		if (sym->st_value
+		 && (1<<(sym->st_info&0xf) & OK_TYPES)
+		 && (1<<(sym->st_info>>4) & OK_BINDS)) {
+			void *symaddr = laddr(p, sym->st_value);
+			if (symaddr > addr || symaddr < best)
+				continue;
+			best = symaddr;
+			bestsym = sym;
+			if (addr == symaddr)
+				break;
+		}
+	}
+
+	if (!best) return 0;
+
+	if (DL_FDPIC && (bestsym->st_info&0xf) == STT_FUNC)
+		best = p->funcdescs + (bestsym - p->syms);
+
+	info->dli_fname = p->name;
+	info->dli_fbase = p->base;
+	info->dli_sname = strings + bestsym->st_name;
+	info->dli_saddr = best;
+
+	return 1;
+}
+
+__attribute__((__visibility__("hidden")))
+void *__dlsym(void *restrict p, const char *restrict s, void *restrict ra)
+{
+	void *res;
+	pthread_rwlock_rdlock(&lock);
+	res = do_dlsym(p, s, ra);
+	pthread_rwlock_unlock(&lock);
+	return res;
+}
+
+int dl_iterate_phdr(int(*callback)(struct dl_phdr_info *info, size_t size, void *data), void *data)
+{
+	struct dso *current;
+	struct dl_phdr_info info;
+	int ret = 0;
+	for(current = head; current;) {
+		info.dlpi_addr      = (uintptr_t)current->base;
+		info.dlpi_name      = current->name;
+		info.dlpi_phdr      = current->phdr;
+		info.dlpi_phnum     = current->phnum;
+		info.dlpi_adds      = gencnt;
+		info.dlpi_subs      = 0;
+		info.dlpi_tls_modid = current->tls_id;
+		info.dlpi_tls_data  = current->tls.image;
+
+		ret = (callback)(&info, sizeof (info), data);
+
+		if (ret != 0) break;
+
+		pthread_rwlock_rdlock(&lock);
+		current = current->next;
+		pthread_rwlock_unlock(&lock);
+	}
+	return ret;
+}
+
+__attribute__((__visibility__("hidden")))
+void __dl_vseterr(const char *, va_list);
+
+static void error(const char *fmt, ...)
+{
+	va_list ap;
+	va_start(ap, fmt);
+	if (!runtime) {
+		vdprintf(2, fmt, ap);
+		dprintf(2, "\n");
+		ldso_fail = 1;
+		va_end(ap);
+		return;
+	}
+	__dl_vseterr(fmt, ap);
+	va_end(ap);
+}
--- a/src/env/__init_tls.c
+++ b/src/env/__init_tls.c
@@ -8,9 +8,6 @@
 #include "atomic.h"
 #include "syscall.h"
 
-#ifndef SHARED
-static
-#endif
 int __init_tp(void *p)
 {
 	pthread_t td = p;
@@ -24,8 +21,6 @@ int __init_tp(void *p)
 	return 0;
 }
 
-#ifndef SHARED
-
 static struct builtin_tls {
 	char c;
 	struct pthread pt;
@@ -33,33 +28,40 @@ static struct builtin_tls {
 } builtin_tls[1];
 #define MIN_TLS_ALIGN offsetof(struct builtin_tls, pt)
 
-struct tls_image {
-	void *image;
-	size_t len, size, align;
-} __static_tls;
-
-#define T __static_tls
+static struct tls_module main_tls;
 
 void *__copy_tls(unsigned char *mem)
 {
 	pthread_t td;
-	if (!T.image) return mem;
-	void **dtv = (void *)mem;
-	dtv[0] = (void *)1;
+	struct tls_module *p;
+	size_t i;
+	void **dtv;
+
 #ifdef TLS_ABOVE_TP
-	mem += sizeof(void *) * 2;
-	mem += -((uintptr_t)mem + sizeof(struct pthread)) & (T.align-1);
+	dtv = (void **)(mem + libc.tls_size) - (libc.tls_cnt + 1);
+
+	mem += -((uintptr_t)mem + sizeof(struct pthread)) & (libc.tls_align-1);
 	td = (pthread_t)mem;
 	mem += sizeof(struct pthread);
+
+	for (i=1, p=libc.tls_head; p; i++, p=p->next) {
+		dtv[i] = mem + p->offset;
+		memcpy(dtv[i], p->image, p->len);
+	}
 #else
+	dtv = (void **)mem;
+
 	mem += libc.tls_size - sizeof(struct pthread);
-	mem -= (uintptr_t)mem & (T.align-1);
+	mem -= (uintptr_t)mem & (libc.tls_align-1);
 	td = (pthread_t)mem;
-	mem -= T.size;
+
+	for (i=1, p=libc.tls_head; p; i++, p=p->next) {
+		dtv[i] = mem - p->offset;
+		memcpy(dtv[i], p->image, p->len);
+	}
 #endif
+	dtv[0] = (void *)libc.tls_cnt;
 	td->dtv = td->dtv_copy = dtv;
-	dtv[1] = mem;
-	memcpy(mem, T.image, T.len);
 	return td;
 }
 
@@ -69,7 +71,7 @@ typedef Elf32_Phdr Phdr;
 typedef Elf64_Phdr Phdr;
 #endif
 
-void __init_tls(size_t *aux)
+static void static_init_tls(size_t *aux)
 {
 	unsigned char *p;
 	size_t n;
@@ -86,16 +88,24 @@ void __init_tls(size_t *aux)
 	}
 
 	if (tls_phdr) {
-		T.image = (void *)(base + tls_phdr->p_vaddr);
-		T.len = tls_phdr->p_filesz;
-		T.size = tls_phdr->p_memsz;
-		T.align = tls_phdr->p_align;
+		main_tls.image = (void *)(base + tls_phdr->p_vaddr);
+		main_tls.len = tls_phdr->p_filesz;
+		main_tls.size = tls_phdr->p_memsz;
+		main_tls.align = tls_phdr->p_align;
+		libc.tls_cnt = 1;
+		libc.tls_head = &main_tls;
 	}
 
-	T.size += (-T.size - (uintptr_t)T.image) & (T.align-1);
-	if (T.align < MIN_TLS_ALIGN) T.align = MIN_TLS_ALIGN;
+	main_tls.size += (-main_tls.size - (uintptr_t)main_tls.image)
+		& (main_tls.align-1);
+	if (main_tls.align < MIN_TLS_ALIGN) main_tls.align = MIN_TLS_ALIGN;
+#ifndef TLS_ABOVE_TP
+	main_tls.offset = main_tls.size;
+#endif
 
-	libc.tls_size = 2*sizeof(void *)+T.size+T.align+sizeof(struct pthread)
+	libc.tls_align = main_tls.align;
+	libc.tls_size = 2*sizeof(void *) + sizeof(struct pthread)
+		+ main_tls.size + main_tls.align
 		+ MIN_TLS_ALIGN-1 & -MIN_TLS_ALIGN;
 
 	if (libc.tls_size > sizeof builtin_tls) {
@@ -117,6 +127,5 @@ void __init_tls(size_t *aux)
 	if (__init_tp(__copy_tls(mem)) < 0)
 		a_crash();
 }
-#else
-void __init_tls(size_t *auxv) { }
-#endif
+
+weak_alias(static_init_tls, __init_tls);
--- a/src/env/__libc_start_main.c
+++ b/src/env/__libc_start_main.c
@@ -8,21 +8,17 @@
 
 void __init_tls(size_t *);
 
-#ifndef SHARED
-static void dummy() {}
+static void dummy(void) {}
 weak_alias(dummy, _init);
-extern void (*const __init_array_start)() __attribute__((weak));
-extern void (*const __init_array_end)() __attribute__((weak));
-#endif
+
+__attribute__((__weak__, __visibility__("hidden")))
+extern void (*const __init_array_start)(void), (*const __init_array_end)(void);
 
 static void dummy1(void *p) {}
 weak_alias(dummy1, __init_ssp);
 
 #define AUX_CNT 38
 
-#ifndef SHARED
-static
-#endif
 void __init_libc(char **envp, char *pn)
 {
 	size_t i, *auxv, aux[AUX_CNT] = { 0 };
@@ -57,20 +53,22 @@ void __init_libc(char **envp, char *pn)
 	libc.secure = 1;
 }
 
-int __libc_start_main(int (*main)(int,char **,char **), int argc, char **argv)
+static void libc_start_init(void)
 {
-	char **envp = argv+argc+1;
-
-#ifndef SHARED
-	__init_libc(envp, argv[0]);
 	_init();
 	uintptr_t a = (uintptr_t)&__init_array_start;
 	for (; a<(uintptr_t)&__init_array_end; a+=sizeof(void(*)()))
 		(*(void (**)())a)();
-#else
-	void __libc_start_init(void);
+}
+
+weak_alias(libc_start_init, __libc_start_init);
+
+int __libc_start_main(int (*main)(int,char **,char **), int argc, char **argv)
+{
+	char **envp = argv+argc+1;
+
+	__init_libc(envp, argv[0]);
 	__libc_start_init();
-#endif
 
 	/* Pass control to the application */
 	exit(main(argc, argv, envp));
--- a/src/env/__reset_tls.c
+++ b/src/env/__reset_tls.c
@@ -1,21 +1,16 @@
-#ifndef SHARED
-
 #include <string.h>
 #include "pthread_impl.h"
-
-extern struct tls_image {
-	void *image;
-	size_t len, size, align;
-} __static_tls;
-
-#define T __static_tls
+#include "libc.h"
 
 void __reset_tls()
 {
-	if (!T.size) return;
 	pthread_t self = __pthread_self();
-	memcpy(self->dtv[1], T.image, T.len);
-	memset((char *)self->dtv[1]+T.len, 0, T.size-T.len);
+	struct tls_module *p;
+	size_t i, n = (size_t)self->dtv[0];
+	if (n) for (p=libc.tls_head, i=1; i<=n; i++, p=p->next) {
+		if (!self->dtv[i]) continue;
+		memcpy(self->dtv[i], p->image, p->len);
+		memset((char *)self->dtv[i]+p->len, 0,
+			p->size - p->len);
+	}
 }
-
-#endif
--- a/src/env/__stack_chk_fail.c
+++ b/src/env/__stack_chk_fail.c
@@ -17,16 +17,7 @@ void __stack_chk_fail(void)
 	a_crash();
 }
 
-#ifdef SHARED
-
 __attribute__((__visibility__("hidden")))
-void __stack_chk_fail_local(void)
-{
-	a_crash();
-}
-
-#else
+void __stack_chk_fail_local(void);
 
 weak_alias(__stack_chk_fail, __stack_chk_fail_local);
-
-#endif
--- /dev/null
+++ b/src/exit/arm/__aeabi_atexit.c
@@ -0,0 +1,6 @@
+int __cxa_atexit(void (*func)(void *), void *arg, void *dso);
+
+int __aeabi_atexit (void *obj, void (*func) (void *), void *d)
+{
+	return __cxa_atexit (func, obj, d);
+}
--- a/src/exit/exit.c
+++ b/src/exit/exit.c
@@ -10,25 +10,25 @@ static void dummy()
  * as a consequence of linking either __toread.c or __towrite.c. */
 weak_alias(dummy, __funcs_on_exit);
 weak_alias(dummy, __stdio_exit);
-
-#ifndef SHARED
 weak_alias(dummy, _fini);
-extern void (*const __fini_array_start)() __attribute__((weak));
-extern void (*const __fini_array_end)() __attribute__((weak));
-#endif
 
-_Noreturn void exit(int code)
-{
-	__funcs_on_exit();
+__attribute__((__weak__, __visibility__("hidden")))
+extern void (*const __fini_array_start)(void), (*const __fini_array_end)(void);
 
-#ifndef SHARED
+static void libc_exit_fini(void)
+{
 	uintptr_t a = (uintptr_t)&__fini_array_end;
 	for (; a>(uintptr_t)&__fini_array_start; a-=sizeof(void(*)()))
 		(*(void (**)())(a-sizeof(void(*)())))();
 	_fini();
-#endif
+}
 
-	__stdio_exit();
+weak_alias(libc_exit_fini, __libc_exit_fini);
 
+_Noreturn void exit(int code)
+{
+	__funcs_on_exit();
+	__libc_exit_fini();
+	__stdio_exit();
 	_Exit(code);
 }
--- /dev/null
+++ b/src/fenv/arm/fenv-hf.S
@@ -0,0 +1,69 @@
+#if __ARM_PCS_VFP
+
+.syntax unified
+.fpu vfp
+
+.global fegetround
+.type fegetround,%function
+fegetround:
+	fmrx r0, fpscr
+	and r0, r0, #0xc00000
+	bx lr
+
+.global __fesetround
+.type __fesetround,%function
+__fesetround:
+	fmrx r3, fpscr
+	bic r3, r3, #0xc00000
+	orr r3, r3, r0
+	fmxr fpscr, r3
+	mov r0, #0
+	bx lr
+
+.global fetestexcept
+.type fetestexcept,%function
+fetestexcept:
+	and r0, r0, #0x1f
+	fmrx r3, fpscr
+	and r0, r0, r3
+	bx lr
+
+.global feclearexcept
+.type feclearexcept,%function
+feclearexcept:
+	and r0, r0, #0x1f
+	fmrx r3, fpscr
+	bic r3, r3, r0
+	fmxr fpscr, r3
+	mov r0, #0
+	bx lr
+
+.global feraiseexcept
+.type feraiseexcept,%function
+feraiseexcept:
+	and r0, r0, #0x1f
+	fmrx r3, fpscr
+	orr r3, r3, r0
+	fmxr fpscr, r3
+	mov r0, #0
+	bx lr
+
+.global fegetenv
+.type fegetenv,%function
+fegetenv:
+	fmrx r3, fpscr
+	str r3, [r0]
+	mov r0, #0
+	bx lr
+
+.global fesetenv
+.type fesetenv,%function
+fesetenv:
+	cmn r0, #1
+	moveq r3, #0
+	ldrne r3, [r0]
+	fmxr fpscr, r3
+	mov r0, #0
+	bx lr
+
+#endif
--- /dev/null
+++ b/src/fenv/arm/fenv.c
@@ -0,0 +1,3 @@
+#if !__ARM_PCS_VFP
+#include "../fenv.c"
+#endif
--- a/src/fenv/armebhf/fenv.sub
+++ /dev/null
@@ -1 +0,0 @@
-../armhf/fenv.s
--- a/src/fenv/armhf/fenv.s
+++ /dev/null
@@ -1,64 +0,0 @@
-.fpu vfp
-
-.global fegetround
-.type fegetround,%function
-fegetround:
-	mrc p10, 7, r0, cr1, cr0, 0
-	and r0, r0, #0xc00000
-	bx lr
-
-.global __fesetround
-.type __fesetround,%function
-__fesetround:
-	mrc p10, 7, r3, cr1, cr0, 0
-	bic r3, r3, #0xc00000
-	orr r3, r3, r0
-	mcr p10, 7, r3, cr1, cr0, 0
-	mov r0, #0
-	bx lr
-
-.global fetestexcept
-.type fetestexcept,%function
-fetestexcept:
-	and r0, r0, #0x1f
-	mrc p10, 7, r3, cr1, cr0, 0
-	and r0, r0, r3
-	bx lr
-
-.global feclearexcept
-.type feclearexcept,%function
-feclearexcept:
-	and r0, r0, #0x1f
-	mrc p10, 7, r3, cr1, cr0, 0
-	bic r3, r3, r0
-	mcr p10, 7, r3, cr1, cr0, 0
-	mov r0, #0
-	bx lr
-
-.global feraiseexcept
-.type feraiseexcept,%function
-feraiseexcept:
-	and r0, r0, #0x1f
-	mrc p10, 7, r3, cr1, cr0, 0
-	orr r3, r3, r0
-	mcr p10, 7, r3, cr1, cr0, 0
-	mov r0, #0
-	bx lr
-
-.global fegetenv
-.type fegetenv,%function
-fegetenv:
-	mrc p10, 7, r3, cr1, cr0, 0
-	str r3, [r0]
-	mov r0, #0
-	bx lr
-
-.global fesetenv
-.type fesetenv,%function
-fesetenv:
-	cmn r0, #1
-	moveq r3, #0
-	ldrne r3, [r0]
-	mcr p10, 7, r3, cr1, cr0, 0
-	mov r0, #0
-	bx lr
--- a/src/fenv/armhf/fenv.sub
+++ /dev/null
@@ -1 +0,0 @@
-fenv.s
--- a/src/fenv/mips-sf/fenv.sub
+++ /dev/null
@@ -1 +0,0 @@
-../fenv.c
--- /dev/null
+++ b/src/fenv/mips/fenv-sf.c
@@ -0,0 +1,3 @@
+#ifdef __mips_soft_float
+#include "../fenv.c"
+#endif
--- /dev/null
+++ b/src/fenv/mips/fenv.S
@@ -0,0 +1,71 @@
+#ifndef __mips_soft_float
+
+.set noreorder
+
+.global feclearexcept
+.type  feclearexcept,@function
+feclearexcept:
+	and     $4, $4, 0x7c
+	cfc1    $5, $31
+	or      $5, $5, $4
+	xor     $5, $5, $4
+	ctc1    $5, $31
+	jr      $ra
+	li      $2, 0
+
+.global feraiseexcept
+.type  feraiseexcept,@function
+feraiseexcept:
+	and     $4, $4, 0x7c
+	cfc1    $5, $31
+	or      $5, $5, $4
+	ctc1    $5, $31
+	jr      $ra
+	li      $2, 0
+
+.global fetestexcept
+.type  fetestexcept,@function
+fetestexcept:
+	and     $4, $4, 0x7c
+	cfc1    $2, $31
+	jr      $ra
+	and     $2, $2, $4
+
+.global fegetround
+.type  fegetround,@function
+fegetround:
+	cfc1    $2, $31
+	jr      $ra
+	andi    $2, $2, 3
+
+.global __fesetround
+.type __fesetround,@function
+__fesetround:
+	cfc1    $5, $31
+	li      $6, -4
+	and     $5, $5, $6
+	or      $5, $5, $4
+	ctc1    $5, $31
+	jr      $ra
+	li      $2, 0
+
+.global fegetenv
+.type  fegetenv,@function
+fegetenv:
+	cfc1    $5, $31
+	sw      $5, 0($4)
+	jr      $ra
+	li      $2, 0
+
+.global fesetenv
+.type  fesetenv,@function
+fesetenv:
+	addiu   $5, $4, 1
+	beq     $5, $0, 1f
+	 nop
+	lw      $5, 0($4)
+1:	ctc1    $5, $31
+	jr      $ra
+	li      $2, 0
+
+#endif
--- a/src/fenv/mips/fenv.s
+++ /dev/null
@@ -1,67 +0,0 @@
-.set noreorder
-
-.global feclearexcept
-.type  feclearexcept,@function
-feclearexcept:
-	and     $4, $4, 0x7c
-	cfc1    $5, $31
-	or      $5, $5, $4
-	xor     $5, $5, $4
-	ctc1    $5, $31
-	jr      $ra
-	li      $2, 0
-
-.global feraiseexcept
-.type  feraiseexcept,@function
-feraiseexcept:
-	and     $4, $4, 0x7c
-	cfc1    $5, $31
-	or      $5, $5, $4
-	ctc1    $5, $31
-	jr      $ra
-	li      $2, 0
-
-.global fetestexcept
-.type  fetestexcept,@function
-fetestexcept:
-	and     $4, $4, 0x7c
-	cfc1    $2, $31
-	jr      $ra
-	and     $2, $2, $4
-
-.global fegetround
-.type  fegetround,@function
-fegetround:
-	cfc1    $2, $31
-	jr      $ra
-	andi    $2, $2, 3
-
-.global __fesetround
-.type __fesetround,@function
-__fesetround:
-	cfc1    $5, $31
-	li      $6, -4
-	and     $5, $5, $6
-	or      $5, $5, $4
-	ctc1    $5, $31
-	jr      $ra
-	li      $2, 0
-
-.global fegetenv
-.type  fegetenv,@function
-fegetenv:
-	cfc1    $5, $31
-	sw      $5, 0($4)
-	jr      $ra
-	li      $2, 0
-
-.global fesetenv
-.type  fesetenv,@function
-fesetenv:
-	addiu   $5, $4, 1
-	beq     $5, $0, 1f
-	 nop
-	lw      $5, 0($4)
-1:	ctc1    $5, $31
-	jr      $ra
-	li      $2, 0
--- a/src/fenv/mipsel-sf/fenv.sub
+++ /dev/null
@@ -1 +0,0 @@
-../fenv.c
--- a/src/fenv/sh-nofpu/fenv.sub
+++ /dev/null
@@ -1 +0,0 @@
-../fenv.c
--- /dev/null
+++ b/src/fenv/sh/fenv-nofpu.c
@@ -0,0 +1,3 @@
+#if !__SH_FPU_ANY__ && !__SH4__
+#include "../fenv.c"
+#endif
--- /dev/null
+++ b/src/fenv/sh/fenv.S
@@ -0,0 +1,78 @@
+#if __SH_FPU_ANY__ || __SH4__
+
+.global fegetround
+.type   fegetround, @function
+fegetround:
+	sts fpscr, r0
+	rts
+	 and #3, r0
+
+.global __fesetround
+.type   __fesetround, @function
+__fesetround:
+	sts fpscr, r0
+	or  r4, r0
+	lds r0, fpscr
+	rts
+	 mov #0, r0
+
+.global fetestexcept
+.type   fetestexcept, @function
+fetestexcept:
+	sts fpscr, r0
+	and r4, r0
+	rts
+	 and #0x7c, r0
+
+.global feclearexcept
+.type   feclearexcept, @function
+feclearexcept:
+	mov r4, r0
+	and #0x7c, r0
+	not r0, r4
+	sts fpscr, r0
+	and r4, r0
+	lds r0, fpscr
+	rts
+	 mov #0, r0
+
+.global feraiseexcept
+.type   feraiseexcept, @function
+feraiseexcept:
+	mov r4, r0
+	and #0x7c, r0
+	sts fpscr, r4
+	or  r4, r0
+	lds r0, fpscr
+	rts
+	 mov #0, r0
+
+.global fegetenv
+.type   fegetenv, @function
+fegetenv:
+	sts fpscr, r0
+	mov.l r0, @r4
+	rts
+	 mov #0, r0
+
+.global fesetenv
+.type   fesetenv, @function
+fesetenv:
+	mov r4, r0
+	cmp/eq #-1, r0
+	bf 1f
+
+	! the default environment is complicated by the fact that we need to
+	! preserve the current precision bit, which we do not know a priori
+	sts fpscr, r0
+	mov #8, r1
+	swap.w r1, r1
+	bra 2f
+	 and r1, r0
+
+1:	mov.l @r4, r0      ! non-default environment
+2:	lds r0, fpscr
+	rts
+	 mov #0, r0
+
+#endif
--- a/src/fenv/sh/fenv.s
+++ /dev/null
@@ -1,74 +0,0 @@
-.global fegetround
-.type   fegetround, @function
-fegetround:
-	sts fpscr, r0
-	rts
-	 and #3, r0
-
-.global __fesetround
-.type   __fesetround, @function
-__fesetround:
-	sts fpscr, r0
-	or  r4, r0
-	lds r0, fpscr
-	rts
-	 mov #0, r0
-
-.global fetestexcept
-.type   fetestexcept, @function
-fetestexcept:
-	sts fpscr, r0
-	and r4, r0
-	rts
-	 and #0x7c, r0
-
-.global feclearexcept
-.type   feclearexcept, @function
-feclearexcept:
-	mov r4, r0
-	and #0x7c, r0
-	not r0, r4
-	sts fpscr, r0
-	and r4, r0
-	lds r0, fpscr
-	rts
-	 mov #0, r0
-
-.global feraiseexcept
-.type   feraiseexcept, @function
-feraiseexcept:
-	mov r4, r0
-	and #0x7c, r0
-	sts fpscr, r4
-	or  r4, r0
-	lds r0, fpscr
-	rts
-	 mov #0, r0
-
-.global fegetenv
-.type   fegetenv, @function
-fegetenv:
-	sts fpscr, r0
-	mov.l r0, @r4
-	rts
-	 mov #0, r0
-
-.global fesetenv
-.type   fesetenv, @function
-fesetenv:
-	mov r4, r0
-	cmp/eq #-1, r0
-	bf 1f
-
-	! the default environment is complicated by the fact that we need to
-	! preserve the current precision bit, which we do not know a priori
-	sts fpscr, r0
-	mov #8, r1
-	swap.w r1, r1
-	bra 2f
-	 and r1, r0
-
-1:	mov.l @r4, r0      ! non-default environment
-2:	lds r0, fpscr
-	rts
-	 mov #0, r0
--- a/src/fenv/sheb-nofpu/fenv.sub
+++ /dev/null
@@ -1 +0,0 @@
-../fenv.c
--- a/src/internal/arm/syscall.s
+++ b/src/internal/arm/syscall.s
@@ -1,3 +1,4 @@
+.syntax unified
 .global __syscall
 .hidden __syscall
 .type __syscall,%function
@@ -11,6 +12,4 @@ __syscall:
 	ldmfd ip,{r3,r4,r5,r6}
 	svc 0
 	ldmfd sp!,{r4,r5,r6,r7}
-	tst lr,#1
-	moveq pc,lr
 	bx lr
--- /dev/null
+++ b/src/internal/atomic.h
@@ -0,0 +1,275 @@
+#ifndef _ATOMIC_H
+#define _ATOMIC_H
+
+#include <stdint.h>
+
+#include "atomic_arch.h"
+
+#ifdef a_ll
+
+#ifndef a_pre_llsc
+#define a_pre_llsc()
+#endif
+
+#ifndef a_post_llsc
+#define a_post_llsc()
+#endif
+
+#ifndef a_cas
+#define a_cas a_cas
+static inline int a_cas(volatile int *p, int t, int s)
+{
+	int old;
+	a_pre_llsc();
+	do old = a_ll(p);
+	while (old==t && !a_sc(p, s));
+	a_post_llsc();
+	return old;
+}
+#endif
+
+#ifndef a_swap
+#define a_swap a_swap
+static inline int a_swap(volatile int *p, int v)
+{
+	int old;
+	a_pre_llsc();
+	do old = a_ll(p);
+	while (!a_sc(p, v));
+	a_post_llsc();
+	return old;
+}
+#endif
+
+#ifndef a_fetch_add
+#define a_fetch_add a_fetch_add
+static inline int a_fetch_add(volatile int *p, int v)
+{
+	int old;
+	a_pre_llsc();
+	do old = a_ll(p);
+	while (!a_sc(p, (unsigned)old + v));
+	a_post_llsc();
+	return old;
+}
+#endif
+
+#ifndef a_fetch_and
+#define a_fetch_and a_fetch_and
+static inline int a_fetch_and(volatile int *p, int v)
+{
+	int old;
+	a_pre_llsc();
+	do old = a_ll(p);
+	while (!a_sc(p, old & v));
+	a_post_llsc();
+	return old;
+}
+#endif
+
+#ifndef a_fetch_or
+#define a_fetch_or a_fetch_or
+static inline int a_fetch_or(volatile int *p, int v)
+{
+	int old;
+	a_pre_llsc();
+	do old = a_ll(p);
+	while (!a_sc(p, old | v));
+	a_post_llsc();
+	return old;
+}
+#endif
+
+#endif
+
+#ifndef a_cas
+#error missing definition of a_cas
+#endif
+
+#ifndef a_swap
+#define a_swap a_swap
+static inline int a_swap(volatile int *p, int v)
+{
+	int old;
+	do old = *p;
+	while (a_cas(p, old, v) != old);
+	return old;
+}
+#endif
+
+#ifndef a_fetch_add
+#define a_fetch_add a_fetch_add
+static inline int a_fetch_add(volatile int *p, int v)
+{
+	int old;
+	do old = *p;
+	while (a_cas(p, old, (unsigned)old+v) != old);
+	return old;
+}
+#endif
+
+#ifndef a_fetch_and
+#define a_fetch_and a_fetch_and
+static inline int a_fetch_and(volatile int *p, int v)
+{
+	int old;
+	do old = *p;
+	while (a_cas(p, old, old&v) != old);
+	return old;
+}
+#endif
+#ifndef a_fetch_or
+#define a_fetch_or a_fetch_or
+static inline int a_fetch_or(volatile int *p, int v)
+{
+	int old;
+	do old = *p;
+	while (a_cas(p, old, old|v) != old);
+	return old;
+}
+#endif
+
+#ifndef a_and
+#define a_and a_and
+static inline void a_and(volatile int *p, int v)
+{
+	a_fetch_and(p, v);
+}
+#endif
+
+#ifndef a_or
+#define a_or a_or
+static inline void a_or(volatile int *p, int v)
+{
+	a_fetch_or(p, v);
+}
+#endif
+
+#ifndef a_inc
+#define a_inc a_inc
+static inline void a_inc(volatile int *p)
+{
+	a_fetch_add(p, 1);
+}
+#endif
+
+#ifndef a_dec
+#define a_dec a_dec
+static inline void a_dec(volatile int *p)
+{
+	a_fetch_add(p, -1);
+}
+#endif
+
+#ifndef a_store
+#define a_store a_store
+static inline void a_store(volatile int *p, int v)
+{
+#ifdef a_barrier
+	a_barrier();
+	*p = v;
+	a_barrier();
+#else
+	a_swap(p, v);
+#endif
+}
+#endif
+
+#ifndef a_barrier
+#define a_barrier a_barrier
+static void a_barrier()
+{
+	volatile int tmp = 0;
+	a_cas(&tmp, 0, 0);
+}
+#endif
+
+#ifndef a_spin
+#define a_spin a_barrier
+#endif
+
+#ifndef a_and_64
+#define a_and_64 a_and_64
+static inline void a_and_64(volatile uint64_t *p, uint64_t v)
+{
+	union { uint64_t v; uint32_t r[2]; } u = { v };
+	if (u.r[0]+1) a_and((int *)p, u.r[0]);
+	if (u.r[1]+1) a_and((int *)p+1, u.r[1]);
+}
+#endif
+
+#ifndef a_or_64
+#define a_or_64 a_or_64
+static inline void a_or_64(volatile uint64_t *p, uint64_t v)
+{
+	union { uint64_t v; uint32_t r[2]; } u = { v };
+	if (u.r[0]) a_or((int *)p, u.r[0]);
+	if (u.r[1]) a_or((int *)p+1, u.r[1]);
+}
+#endif
+
+#ifndef a_cas_p
+#define a_cas_p a_cas_p
+static inline void *a_cas_p(volatile void *p, void *t, void *s)
+{
+	return (void *)a_cas((volatile int *)p, (int)t, (int)s);
+}
+#endif
+
+#ifndef a_or_l
+#define a_or_l a_or_l
+static inline void a_or_l(volatile void *p, long v)
+{
+	if (sizeof(long) == sizeof(int)) a_or(p, v);
+	else a_or_64(p, v);
+}
+#endif
+
+#ifndef a_crash
+#define a_crash a_crash
+static inline void a_crash()
+{
+	*(volatile char *)0=0;
+}
+#endif
+
+#ifndef a_ctz_64
+#define a_ctz_64 a_ctz_64
+static inline int a_ctz_64(uint64_t x)
+{
+	static const char debruijn64[64] = {
+		0, 1, 2, 53, 3, 7, 54, 27, 4, 38, 41, 8, 34, 55, 48, 28,
+		62, 5, 39, 46, 44, 42, 22, 9, 24, 35, 59, 56, 49, 18, 29, 11,
+		63, 52, 6, 26, 37, 40, 33, 47, 61, 45, 43, 21, 23, 58, 17, 10,
+		51, 25, 36, 32, 60, 20, 57, 16, 50, 31, 19, 15, 30, 14, 13, 12
+	};
+	static const char debruijn32[32] = {
+		0, 1, 23, 2, 29, 24, 19, 3, 30, 27, 25, 11, 20, 8, 4, 13,
+		31, 22, 28, 18, 26, 10, 7, 12, 21, 17, 9, 6, 16, 5, 15, 14
+	};
+	if (sizeof(long) < 8) {
+		uint32_t y = x;
+		if (!y) {
+			y = x>>32;
+			return 32 + debruijn32[(y&-y)*0x076be629 >> 27];
+		}
+		return debruijn32[(y&-y)*0x076be629 >> 27];
+	}
+	return debruijn64[(x&-x)*0x022fdd63cc95386dull >> 58];
+}
+#endif
+
+#ifndef a_ctz_l
+#define a_ctz_l a_ctz_l
+static inline int a_ctz_l(unsigned long x)
+{
+	static const char debruijn32[32] = {
+		0, 1, 23, 2, 29, 24, 19, 3, 30, 27, 25, 11, 20, 8, 4, 13,
+		31, 22, 28, 18, 26, 10, 7, 12, 21, 17, 9, 6, 16, 5, 15, 14
+	};
+	if (sizeof(long) == 8) return a_ctz_64(x);
+	return debruijn32[(x&-x)*0x076be629 >> 27];
+}
+#endif
+
+#endif
--- a/src/internal/dynlink.h
+++ b/src/internal/dynlink.h
@@ -64,6 +64,10 @@ struct fdpic_dummy_loadmap {
 #define DL_FDPIC 0
 #endif
 
+#ifndef DL_NOMMU_SUPPORT
+#define DL_NOMMU_SUPPORT 0
+#endif
+
 #if !DL_FDPIC
 #define IS_RELATIVE(x,s) ( \
 	(R_TYPE(x) == REL_RELATIVE) || \
--- a/src/internal/libc.h
+++ b/src/internal/libc.h
@@ -11,13 +11,20 @@ struct __locale_struct {
 	const struct __locale_map *volatile cat[6];
 };
 
+struct tls_module {
+	struct tls_module *next;
+	void *image;
+	size_t len, size, align, offset;
+};
+
 struct __libc {
 	int can_do_threads;
 	int threaded;
 	int secure;
 	volatile int threads_minus_1;
 	size_t *auxv;
-	size_t tls_size;
+	struct tls_module *tls_head;
+	size_t tls_size, tls_align, tls_cnt;
 	size_t page_size;
 	struct __locale_struct global_locale;
 };
--- /dev/null
+++ b/src/internal/sh/__shcall.c
@@ -0,0 +1,5 @@
+__attribute__((__visibility__("hidden")))
+int __shcall(void *arg, int (*func)(void *))
+{
+	return func(arg);
+}
--- a/src/internal/syscall.h
+++ b/src/internal/syscall.h
@@ -17,9 +17,7 @@
 typedef long syscall_arg_t;
 #endif
 
-#ifdef SHARED
 __attribute__((visibility("hidden")))
-#endif
 long __syscall_ret(unsigned long), __syscall(syscall_arg_t, ...),
 	__syscall_cp(syscall_arg_t, syscall_arg_t, syscall_arg_t, syscall_arg_t,
 	             syscall_arg_t, syscall_arg_t, syscall_arg_t);
@@ -65,7 +63,7 @@ long __syscall_ret(unsigned long), __sys
 #define __syscall_cp(...) __SYSCALL_DISP(__syscall_cp,__VA_ARGS__)
 #define syscall_cp(...) __syscall_ret(__syscall_cp(__VA_ARGS__))
 
-#ifdef SYS_socket
+#ifndef SYSCALL_USE_SOCKETCALL
 #define __socketcall(nm,a,b,c,d,e,f) syscall(SYS_##nm, a, b, c, d, e, f)
 #define __socketcall_cp(nm,a,b,c,d,e,f) syscall_cp(SYS_##nm, a, b, c, d, e, f)
 #else
--- a/src/internal/version.c
+++ b/src/internal/version.c
@@ -1,12 +1,9 @@
-#ifdef SHARED
-
 #include "version.h"
 
 static const char version[] = VERSION;
 
+__attribute__((__visibility__("hidden")))
 const char *__libc_get_version()
 {
 	return version;
 }
-
-#endif
--- a/src/internal/vis.h
+++ b/src/internal/vis.h
@@ -4,10 +4,9 @@
  * override default visibilities to reduce the size and performance costs
  * of position-independent code. */
 
-#ifndef CRT
-#ifdef SHARED
+#if !defined(CRT) && !defined(__ASSEMBLER__)
 
-/* For shared libc.so, all symbols should be protected, but some toolchains
+/* Conceptually, all symbols should be protected, but some toolchains
  * fail to support copy relocations for protected data, so exclude all
  * exported data symbols. */
 
@@ -25,16 +24,4 @@ extern char *optarg, **environ, **__envi
 
 #pragma GCC visibility push(protected)
 
-#elif defined(__PIC__)
-
-/* If building static libc.a as position-independent code, try to make
- * everything hidden except possibly-undefined weak references. */
-
-__attribute__((__visibility__("default")))
-extern void (*const __init_array_start)(), (*const __init_array_end)(),
-	(*const __fini_array_start)(), (*const __fini_array_end)();
-
-#pragma GCC visibility push(hidden)
-
-#endif
 #endif
--- /dev/null
+++ b/src/ldso/__dlsym.c
@@ -0,0 +1,13 @@
+#include <dlfcn.h>
+#include "libc.h"
+
+__attribute__((__visibility__("hidden")))
+void __dl_seterr(const char *, ...);
+
+static void *stub_dlsym(void *restrict p, const char *restrict s, void *restrict ra)
+{
+	__dl_seterr("Symbol not found: %s", s);
+	return 0;
+}
+
+weak_alias(stub_dlsym, __dlsym);
--- a/src/ldso/arm/dlsym.s
+++ b/src/ldso/arm/dlsym.s
@@ -1,3 +1,4 @@
+.syntax unified
 .text
 .global dlsym
 .hidden __dlsym
--- /dev/null
+++ b/src/ldso/arm/find_exidx.c
@@ -0,0 +1,42 @@
+#define _GNU_SOURCE
+#include <link.h>
+#include <stdint.h>
+
+struct find_exidx_data {
+	uintptr_t pc, exidx_start;
+	int exidx_len;
+};
+
+static int find_exidx(struct dl_phdr_info *info, size_t size, void *ptr)
+{
+	struct find_exidx_data *data = ptr;
+	const ElfW(Phdr) *phdr = info->dlpi_phdr;
+	uintptr_t addr, exidx_start = 0;
+	int i, match = 0, exidx_len = 0;
+
+	for (i = info->dlpi_phnum; i > 0; i--, phdr++) {
+		addr = info->dlpi_addr + phdr->p_vaddr;
+		switch (phdr->p_type) {
+		case PT_LOAD:
+			match |= data->pc >= addr && data->pc < addr + phdr->p_memsz;
+			break;
+		case PT_ARM_EXIDX:
+			exidx_start = addr;
+			exidx_len = phdr->p_memsz;
+			break;
+		}
+	}
+	data->exidx_start = exidx_start;
+	data->exidx_len = exidx_len;
+	return match;
+}
+
+uintptr_t __gnu_Unwind_Find_exidx(uintptr_t pc, int *pcount)
+{
+	struct find_exidx_data data;
+	data.pc = pc;
+	if (dl_iterate_phdr(find_exidx, &data) <= 0)
+		return 0;
+	*pcount = data.exidx_len / 8;
+	return data.exidx_start;
+}
--- a/src/ldso/dl_iterate_phdr.c
+++ b/src/ldso/dl_iterate_phdr.c
@@ -1,12 +1,10 @@
-#ifndef SHARED
-
 #include <elf.h>
 #include <link.h>
 #include "libc.h"
 
 #define AUX_CNT 38
 
-int dl_iterate_phdr(int(*callback)(struct dl_phdr_info *info, size_t size, void *data), void *data)
+static int static_dl_iterate_phdr(int(*callback)(struct dl_phdr_info *info, size_t size, void *data), void *data)
 {
 	unsigned char *p;
 	ElfW(Phdr) *phdr, *tls_phdr=0;
@@ -40,4 +38,5 @@ int dl_iterate_phdr(int(*callback)(struc
 	}
 	return (callback)(&info, sizeof (info), data);
 }
-#endif
+
+weak_alias(static_dl_iterate_phdr, dl_iterate_phdr);
--- a/src/ldso/dladdr.c
+++ b/src/ldso/dladdr.c
@@ -1,9 +1,10 @@
 #define _GNU_SOURCE
 #include <dlfcn.h>
+#include "libc.h"
 
-int __dladdr(const void *, Dl_info *);
-
-int dladdr(const void *addr, Dl_info *info)
+static int stub_dladdr(const void *addr, Dl_info *info)
 {
-	return __dladdr(addr, info);
+	return 0;
 }
+
+weak_alias(stub_dladdr, dladdr);
--- /dev/null
+++ b/src/ldso/dlclose.c
@@ -0,0 +1,9 @@
+#include <dlfcn.h>
+
+__attribute__((__visibility__("hidden")))
+int __dl_invalid_handle(void *);
+
+int dlclose(void *p)
+{
+	return __dl_invalid_handle(p);
+}
--- /dev/null
+++ b/src/ldso/dlerror.c
@@ -0,0 +1,64 @@
+#include <dlfcn.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include "pthread_impl.h"
+#include "libc.h"
+
+char *dlerror()
+{
+	pthread_t self = __pthread_self();
+	if (!self->dlerror_flag) return 0;
+	self->dlerror_flag = 0;
+	char *s = self->dlerror_buf;
+	if (s == (void *)-1)
+		return "Dynamic linker failed to allocate memory for error message";
+	else
+		return s;
+}
+
+void __dl_thread_cleanup(void)
+{
+	pthread_t self = __pthread_self();
+	if (self->dlerror_buf != (void *)-1)
+		free(self->dlerror_buf);
+}
+
+__attribute__((__visibility__("hidden")))
+void __dl_vseterr(const char *fmt, va_list ap)
+{
+	va_list ap2;
+	va_copy(ap2, ap);
+	pthread_t self = __pthread_self();
+	if (self->dlerror_buf != (void *)-1)
+		free(self->dlerror_buf);
+	size_t len = vsnprintf(0, 0, fmt, ap2);
+	va_end(ap2);
+	char *buf = malloc(len+1);
+	if (buf) {
+		vsnprintf(buf, len+1, fmt, ap);
+	} else {
+		buf = (void *)-1;	
+	}
+	self->dlerror_buf = buf;
+	self->dlerror_flag = 1;
+}
+
+__attribute__((__visibility__("hidden")))
+void __dl_seterr(const char *fmt, ...)
+{
+	va_list ap;
+	va_start(ap, fmt);
+	__dl_vseterr(fmt, ap);
+	va_end(ap);
+}
+
+__attribute__((__visibility__("hidden")))
+int __dl_invalid_handle(void *);
+
+static int stub_invalid_handle(void *h)
+{
+	__dl_seterr("Invalid library handle %p", (void *)h);
+	return 1;
+}
+
+weak_alias(stub_invalid_handle, __dl_invalid_handle);
--- a/src/ldso/dlinfo.c
+++ b/src/ldso/dlinfo.c
@@ -1,9 +1,19 @@
 #define _GNU_SOURCE
 #include <dlfcn.h>
 
-int __dlinfo(void *, int, void *);
+__attribute__((__visibility__("hidden")))
+int __dl_invalid_handle(void *);
+
+__attribute__((__visibility__("hidden")))
+void __dl_seterr(const char *, ...);
 
 int dlinfo(void *dso, int req, void *res)
 {
-	return __dlinfo(dso, req, res);
+	if (__dl_invalid_handle(dso)) return -1;
+	if (req != RTLD_DI_LINKMAP) {
+		__dl_seterr("Unsupported request %d", req);
+		return -1;
+	}
+	*(struct link_map **)res = dso;
+	return 0;
 }
--- /dev/null
+++ b/src/ldso/dlopen.c
@@ -0,0 +1,13 @@
+#include <dlfcn.h>
+#include "libc.h"
+
+__attribute__((__visibility__("hidden")))
+void __dl_seterr(const char *, ...);
+
+static void *stub_dlopen(const char *file, int mode)
+{
+	__dl_seterr("Dynamic loading not supported");
+	return 0;
+}
+
+weak_alias(stub_dlopen, dlopen);
--- a/src/ldso/dlstart.c
+++ /dev/null
@@ -1,150 +0,0 @@
-#include <stddef.h>
-#include "dynlink.h"
-
-#ifdef SHARED
-
-#ifndef START
-#define START "_dlstart"
-#endif
-
-#include "crt_arch.h"
-
-#ifndef GETFUNCSYM
-#define GETFUNCSYM(fp, sym, got) do { \
-	__attribute__((__visibility__("hidden"))) void sym(); \
-	static void (*static_func_ptr)() = sym; \
-	__asm__ __volatile__ ( "" : "+m"(static_func_ptr) : : "memory"); \
-	*(fp) = static_func_ptr; } while(0)
-#endif
-
-__attribute__((__visibility__("hidden")))
-void _dlstart_c(size_t *sp, size_t *dynv)
-{
-	size_t i, aux[AUX_CNT], dyn[DYN_CNT];
-	size_t *rel, rel_size, base;
-
-	int argc = *sp;
-	char **argv = (void *)(sp+1);
-
-	for (i=argc+1; argv[i]; i++);
-	size_t *auxv = (void *)(argv+i+1);
-
-	for (i=0; i<AUX_CNT; i++) aux[i] = 0;
-	for (i=0; auxv[i]; i+=2) if (auxv[i]<AUX_CNT)
-		aux[auxv[i]] = auxv[i+1];
-
-#if DL_FDPIC
-	struct fdpic_loadseg *segs, fakeseg;
-	size_t j;
-	if (dynv) {
-		/* crt_arch.h entry point asm is responsible for reserving
-		 * space and moving the extra fdpic arguments to the stack
-		 * vector where they are easily accessible from C. */
-		segs = ((struct fdpic_loadmap *)(sp[-1] ? sp[-1] : sp[-2]))->segs;
-	} else {
-		/* If dynv is null, the entry point was started from loader
-		 * that is not fdpic-aware. We can assume normal fixed-
-		 * displacement ELF loading was performed, but when ldso was
-		 * run as a command, finding the Ehdr is a heursitic: we
-		 * have to assume Phdrs start in the first 4k of the file. */
-		base = aux[AT_BASE];
-		if (!base) base = aux[AT_PHDR] & -4096;
-		segs = &fakeseg;
-		segs[0].addr = base;
-		segs[0].p_vaddr = 0;
-		segs[0].p_memsz = -1;
-		Ehdr *eh = (void *)base;
-		Phdr *ph = (void *)(base + eh->e_phoff);
-		size_t phnum = eh->e_phnum;
-		size_t phent = eh->e_phentsize;
-		while (phnum-- && ph->p_type != PT_DYNAMIC)
-			ph = (void *)((size_t)ph + phent);
-		dynv = (void *)(base + ph->p_vaddr);
-	}
-#endif
-
-	for (i=0; i<DYN_CNT; i++) dyn[i] = 0;
-	for (i=0; dynv[i]; i+=2) if (dynv[i]<DYN_CNT)
-		dyn[dynv[i]] = dynv[i+1];
-
-#if DL_FDPIC
-	for (i=0; i<DYN_CNT; i++) {
-		if (i==DT_RELASZ || i==DT_RELSZ) continue;
-		if (!dyn[i]) continue;
-		for (j=0; dyn[i]-segs[j].p_vaddr >= segs[j].p_memsz; j++);
-		dyn[i] += segs[j].addr - segs[j].p_vaddr;
-	}
-	base = 0;
-
-	const Sym *syms = (void *)dyn[DT_SYMTAB];
-
-	rel = (void *)dyn[DT_RELA];
-	rel_size = dyn[DT_RELASZ];
-	for (; rel_size; rel+=3, rel_size-=3*sizeof(size_t)) {
-		if (!IS_RELATIVE(rel[1], syms)) continue;
-		for (j=0; rel[0]-segs[j].p_vaddr >= segs[j].p_memsz; j++);
-		size_t *rel_addr = (void *)
-			(rel[0] + segs[j].addr - segs[j].p_vaddr);
-		if (R_TYPE(rel[1]) == REL_FUNCDESC_VAL) {
-			*rel_addr += segs[rel_addr[1]].addr
-				- segs[rel_addr[1]].p_vaddr
-				+ syms[R_SYM(rel[1])].st_value;
-			rel_addr[1] = dyn[DT_PLTGOT];
-		} else {
-			size_t val = syms[R_SYM(rel[1])].st_value;
-			for (j=0; val-segs[j].p_vaddr >= segs[j].p_memsz; j++);
-			*rel_addr = rel[2] + segs[j].addr - segs[j].p_vaddr + val;
-		}
-	}
-#else
-	/* If the dynamic linker is invoked as a command, its load
-	 * address is not available in the aux vector. Instead, compute
-	 * the load address as the difference between &_DYNAMIC and the
-	 * virtual address in the PT_DYNAMIC program header. */
-	base = aux[AT_BASE];
-	if (!base) {
-		size_t phnum = aux[AT_PHNUM];
-		size_t phentsize = aux[AT_PHENT];
-		Phdr *ph = (void *)aux[AT_PHDR];
-		for (i=phnum; i--; ph = (void *)((char *)ph + phentsize)) {
-			if (ph->p_type == PT_DYNAMIC) {
-				base = (size_t)dynv - ph->p_vaddr;
-				break;
-			}
-		}
-	}
-
-	/* MIPS uses an ugly packed form for GOT relocations. Since we
-	 * can't make function calls yet and the code is tiny anyway,
-	 * it's simply inlined here. */
-	if (NEED_MIPS_GOT_RELOCS) {
-		size_t local_cnt = 0;
-		size_t *got = (void *)(base + dyn[DT_PLTGOT]);
-		for (i=0; dynv[i]; i+=2) if (dynv[i]==DT_MIPS_LOCAL_GOTNO)
-			local_cnt = dynv[i+1];
-		for (i=0; i<local_cnt; i++) got[i] += base;
-	}
-
-	rel = (void *)(base+dyn[DT_REL]);
-	rel_size = dyn[DT_RELSZ];
-	for (; rel_size; rel+=2, rel_size-=2*sizeof(size_t)) {
-		if (!IS_RELATIVE(rel[1], 0)) continue;
-		size_t *rel_addr = (void *)(base + rel[0]);
-		*rel_addr += base;
-	}
-
-	rel = (void *)(base+dyn[DT_RELA]);
-	rel_size = dyn[DT_RELASZ];
-	for (; rel_size; rel+=3, rel_size-=3*sizeof(size_t)) {
-		if (!IS_RELATIVE(rel[1], 0)) continue;
-		size_t *rel_addr = (void *)(base + rel[0]);
-		*rel_addr = base + rel[2];
-	}
-#endif
-
-	stage2_func dls2;
-	GETFUNCSYM(&dls2, __dls2, base+dyn[DT_PLTGOT]);
-	dls2((void *)base, sp);
-}
-
-#endif
--- a/src/ldso/dynlink.c
+++ /dev/null
@@ -1,2000 +0,0 @@
-#define _GNU_SOURCE
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdarg.h>
-#include <stddef.h>
-#include <string.h>
-#include <unistd.h>
-#include <stdint.h>
-#include <elf.h>
-#include <sys/mman.h>
-#include <limits.h>
-#include <fcntl.h>
-#include <sys/stat.h>
-#include <errno.h>
-#include <link.h>
-#include <setjmp.h>
-#include <pthread.h>
-#include <ctype.h>
-#include <dlfcn.h>
-#include "pthread_impl.h"
-#include "libc.h"
-#include "dynlink.h"
-
-static void error(const char *, ...);
-
-#ifdef SHARED
-
-#define MAXP2(a,b) (-(-(a)&-(b)))
-#define ALIGN(x,y) ((x)+(y)-1 & -(y))
-
-struct debug {
-	int ver;
-	void *head;
-	void (*bp)(void);
-	int state;
-	void *base;
-};
-
-struct td_index {
-	size_t args[2];
-	struct td_index *next;
-};
-
-struct dso {
-#if DL_FDPIC
-	struct fdpic_loadmap *loadmap;
-#else
-	unsigned char *base;
-#endif
-	char *name;
-	size_t *dynv;
-	struct dso *next, *prev;
-
-	Phdr *phdr;
-	int phnum;
-	size_t phentsize;
-	int refcnt;
-	Sym *syms;
-	uint32_t *hashtab;
-	uint32_t *ghashtab;
-	int16_t *versym;
-	char *strings;
-	unsigned char *map;
-	size_t map_len;
-	dev_t dev;
-	ino_t ino;
-	signed char global;
-	char relocated;
-	char constructed;
-	char kernel_mapped;
-	struct dso **deps, *needed_by;
-	char *rpath_orig, *rpath;
-	void *tls_image;
-	size_t tls_len, tls_size, tls_align, tls_id, tls_offset;
-	size_t relro_start, relro_end;
-	void **new_dtv;
-	unsigned char *new_tls;
-	volatile int new_dtv_idx, new_tls_idx;
-	struct td_index *td_index;
-	struct dso *fini_next;
-	char *shortname;
-#if DL_FDPIC
-	unsigned char *base;
-#else
-	struct fdpic_loadmap *loadmap;
-#endif
-	struct funcdesc {
-		void *addr;
-		size_t *got;
-	} *funcdescs;
-	size_t *got;
-	char buf[];
-};
-
-struct symdef {
-	Sym *sym;
-	struct dso *dso;
-};
-
-int __init_tp(void *);
-void __init_libc(char **, char *);
-
-const char *__libc_get_version(void);
-
-static struct builtin_tls {
-	char c;
-	struct pthread pt;
-	void *space[16];
-} builtin_tls[1];
-#define MIN_TLS_ALIGN offsetof(struct builtin_tls, pt)
-
-#define ADDEND_LIMIT 4096
-static size_t *saved_addends, *apply_addends_to;
-
-static struct dso ldso;
-static struct dso *head, *tail, *fini_head;
-static char *env_path, *sys_path;
-static unsigned long long gencnt;
-static int runtime;
-static int ldd_mode;
-static int ldso_fail;
-static int noload;
-static jmp_buf *rtld_fail;
-static pthread_rwlock_t lock;
-static struct debug debug;
-static size_t tls_cnt, tls_offset, tls_align = MIN_TLS_ALIGN;
-static size_t static_tls_cnt;
-static pthread_mutex_t init_fini_lock = { ._m_type = PTHREAD_MUTEX_RECURSIVE };
-static struct fdpic_loadmap *app_loadmap;
-static struct fdpic_dummy_loadmap app_dummy_loadmap;
-
-struct debug *_dl_debug_addr = &debug;
-
-static int dl_strcmp(const char *l, const char *r)
-{
-	for (; *l==*r && *l; l++, r++);
-	return *(unsigned char *)l - *(unsigned char *)r;
-}
-#define strcmp(l,r) dl_strcmp(l,r)
-
-/* Compute load address for a virtual address in a given dso. */
-#if DL_FDPIC
-static void *laddr(const struct dso *p, size_t v)
-{
-	size_t j=0;
-	if (!p->loadmap) return p->base + v;
-	for (j=0; v-p->loadmap->segs[j].p_vaddr >= p->loadmap->segs[j].p_memsz; j++);
-	return (void *)(v - p->loadmap->segs[j].p_vaddr + p->loadmap->segs[j].addr);
-}
-#define fpaddr(p, v) ((void (*)())&(struct funcdesc){ \
-	laddr(p, v), (p)->got })
-#else
-#define laddr(p, v) (void *)((p)->base + (v))
-#define fpaddr(p, v) ((void (*)())laddr(p, v))
-#endif
-
-static void decode_vec(size_t *v, size_t *a, size_t cnt)
-{
-	size_t i;
-	for (i=0; i<cnt; i++) a[i] = 0;
-	for (; v[0]; v+=2) if (v[0]-1<cnt-1) {
-		a[0] |= 1UL<<v[0];
-		a[v[0]] = v[1];
-	}
-}
-
-static int search_vec(size_t *v, size_t *r, size_t key)
-{
-	for (; v[0]!=key; v+=2)
-		if (!v[0]) return 0;
-	*r = v[1];
-	return 1;
-}
-
-static uint32_t sysv_hash(const char *s0)
-{
-	const unsigned char *s = (void *)s0;
-	uint_fast32_t h = 0;
-	while (*s) {
-		h = 16*h + *s++;
-		h ^= h>>24 & 0xf0;
-	}
-	return h & 0xfffffff;
-}
-
-static uint32_t gnu_hash(const char *s0)
-{
-	const unsigned char *s = (void *)s0;
-	uint_fast32_t h = 5381;
-	for (; *s; s++)
-		h += h*32 + *s;
-	return h;
-}
-
-static Sym *sysv_lookup(const char *s, uint32_t h, struct dso *dso)
-{
-	size_t i;
-	Sym *syms = dso->syms;
-	uint32_t *hashtab = dso->hashtab;
-	char *strings = dso->strings;
-	for (i=hashtab[2+h%hashtab[0]]; i; i=hashtab[2+hashtab[0]+i]) {
-		if ((!dso->versym || dso->versym[i] >= 0)
-		    && (!strcmp(s, strings+syms[i].st_name)))
-			return syms+i;
-	}
-	return 0;
-}
-
-static Sym *gnu_lookup(uint32_t h1, uint32_t *hashtab, struct dso *dso, const char *s)
-{
-	uint32_t nbuckets = hashtab[0];
-	uint32_t *buckets = hashtab + 4 + hashtab[2]*(sizeof(size_t)/4);
-	uint32_t i = buckets[h1 % nbuckets];
-
-	if (!i) return 0;
-
-	uint32_t *hashval = buckets + nbuckets + (i - hashtab[1]);
-
-	for (h1 |= 1; ; i++) {
-		uint32_t h2 = *hashval++;
-		if ((h1 == (h2|1)) && (!dso->versym || dso->versym[i] >= 0)
-		    && !strcmp(s, dso->strings + dso->syms[i].st_name))
-			return dso->syms+i;
-		if (h2 & 1) break;
-	}
-
-	return 0;
-}
-
-static Sym *gnu_lookup_filtered(uint32_t h1, uint32_t *hashtab, struct dso *dso, const char *s, uint32_t fofs, size_t fmask)
-{
-	const size_t *bloomwords = (const void *)(hashtab+4);
-	size_t f = bloomwords[fofs & (hashtab[2]-1)];
-	if (!(f & fmask)) return 0;
-
-	f >>= (h1 >> hashtab[3]) % (8 * sizeof f);
-	if (!(f & 1)) return 0;
-
-	return gnu_lookup(h1, hashtab, dso, s);
-}
-
-#define OK_TYPES (1<<STT_NOTYPE | 1<<STT_OBJECT | 1<<STT_FUNC | 1<<STT_COMMON | 1<<STT_TLS)
-#define OK_BINDS (1<<STB_GLOBAL | 1<<STB_WEAK | 1<<STB_GNU_UNIQUE)
-
-#ifndef ARCH_SYM_REJECT_UND
-#define ARCH_SYM_REJECT_UND(s) 0
-#endif
-
-static struct symdef find_sym(struct dso *dso, const char *s, int need_def)
-{
-	uint32_t h = 0, gh, gho, *ght;
-	size_t ghm = 0;
-	struct symdef def = {0};
-	for (; dso; dso=dso->next) {
-		Sym *sym;
-		if (!dso->global) continue;
-		if ((ght = dso->ghashtab)) {
-			if (!ghm) {
-				gh = gnu_hash(s);
-				int maskbits = 8 * sizeof ghm;
-				gho = gh / maskbits;
-				ghm = 1ul << gh % maskbits;
-			}
-			sym = gnu_lookup_filtered(gh, ght, dso, s, gho, ghm);
-		} else {
-			if (!h) h = sysv_hash(s);
-			sym = sysv_lookup(s, h, dso);
-		}
-		if (!sym) continue;
-		if (!sym->st_shndx)
-			if (need_def || (sym->st_info&0xf) == STT_TLS
-			    || ARCH_SYM_REJECT_UND(sym))
-				continue;
-		if (!sym->st_value)
-			if ((sym->st_info&0xf) != STT_TLS)
-				continue;
-		if (!(1<<(sym->st_info&0xf) & OK_TYPES)) continue;
-		if (!(1<<(sym->st_info>>4) & OK_BINDS)) continue;
-
-		if (def.sym && sym->st_info>>4 == STB_WEAK) continue;
-		def.sym = sym;
-		def.dso = dso;
-		if (sym->st_info>>4 == STB_GLOBAL) break;
-	}
-	return def;
-}
-
-__attribute__((__visibility__("hidden")))
-ptrdiff_t __tlsdesc_static(), __tlsdesc_dynamic();
-
-static void do_relocs(struct dso *dso, size_t *rel, size_t rel_size, size_t stride)
-{
-	unsigned char *base = dso->base;
-	Sym *syms = dso->syms;
-	char *strings = dso->strings;
-	Sym *sym;
-	const char *name;
-	void *ctx;
-	int type;
-	int sym_index;
-	struct symdef def;
-	size_t *reloc_addr;
-	size_t sym_val;
-	size_t tls_val;
-	size_t addend;
-	int skip_relative = 0, reuse_addends = 0, save_slot = 0;
-
-	if (dso == &ldso) {
-		/* Only ldso's REL table needs addend saving/reuse. */
-		if (rel == apply_addends_to)
-			reuse_addends = 1;
-		skip_relative = 1;
-	}
-
-	for (; rel_size; rel+=stride, rel_size-=stride*sizeof(size_t)) {
-		if (skip_relative && IS_RELATIVE(rel[1], dso->syms)) continue;
-		type = R_TYPE(rel[1]);
-		if (type == REL_NONE) continue;
-		sym_index = R_SYM(rel[1]);
-		reloc_addr = laddr(dso, rel[0]);
-		if (sym_index) {
-			sym = syms + sym_index;
-			name = strings + sym->st_name;
-			ctx = type==REL_COPY ? head->next : head;
-			def = (sym->st_info&0xf) == STT_SECTION
-				? (struct symdef){ .dso = dso, .sym = sym }
-				: find_sym(ctx, name, type==REL_PLT);
-			if (!def.sym && (sym->st_shndx != SHN_UNDEF
-			    || sym->st_info>>4 != STB_WEAK)) {
-				error("Error relocating %s: %s: symbol not found",
-					dso->name, name);
-				if (runtime) longjmp(*rtld_fail, 1);
-				continue;
-			}
-		} else {
-			sym = 0;
-			def.sym = 0;
-			def.dso = dso;
-		}
-
-		if (stride > 2) {
-			addend = rel[2];
-		} else if (type==REL_GOT || type==REL_PLT|| type==REL_COPY) {
-			addend = 0;
-		} else if (reuse_addends) {
-			/* Save original addend in stage 2 where the dso
-			 * chain consists of just ldso; otherwise read back
-			 * saved addend since the inline one was clobbered. */
-			if (head==&ldso)
-				saved_addends[save_slot] = *reloc_addr;
-			addend = saved_addends[save_slot++];
-		} else {
-			addend = *reloc_addr;
-		}
-
-		sym_val = def.sym ? (size_t)laddr(def.dso, def.sym->st_value) : 0;
-		tls_val = def.sym ? def.sym->st_value : 0;
-
-		switch(type) {
-		case REL_NONE:
-			break;
-		case REL_OFFSET:
-			addend -= (size_t)reloc_addr;
-		case REL_SYMBOLIC:
-		case REL_GOT:
-		case REL_PLT:
-			*reloc_addr = sym_val + addend;
-			break;
-		case REL_RELATIVE:
-			*reloc_addr = (size_t)base + addend;
-			break;
-		case REL_SYM_OR_REL:
-			if (sym) *reloc_addr = sym_val + addend;
-			else *reloc_addr = (size_t)base + addend;
-			break;
-		case REL_COPY:
-			memcpy(reloc_addr, (void *)sym_val, sym->st_size);
-			break;
-		case REL_OFFSET32:
-			*(uint32_t *)reloc_addr = sym_val + addend
-				- (size_t)reloc_addr;
-			break;
-		case REL_FUNCDESC:
-			*reloc_addr = def.sym ? (size_t)(def.dso->funcdescs
-				+ (def.sym - def.dso->syms)) : 0;
-			break;
-		case REL_FUNCDESC_VAL:
-			if ((sym->st_info&0xf) == STT_SECTION) *reloc_addr += sym_val;
-			else *reloc_addr = sym_val;
-			reloc_addr[1] = def.sym ? (size_t)def.dso->got : 0;
-			break;
-		case REL_DTPMOD:
-			*reloc_addr = def.dso->tls_id;
-			break;
-		case REL_DTPOFF:
-			*reloc_addr = tls_val + addend - DTP_OFFSET;
-			break;
-#ifdef TLS_ABOVE_TP
-		case REL_TPOFF:
-			*reloc_addr = tls_val + def.dso->tls_offset + TPOFF_K + addend;
-			break;
-#else
-		case REL_TPOFF:
-			*reloc_addr = tls_val - def.dso->tls_offset + addend;
-			break;
-		case REL_TPOFF_NEG:
-			*reloc_addr = def.dso->tls_offset - tls_val + addend;
-			break;
-#endif
-		case REL_TLSDESC:
-			if (stride<3) addend = reloc_addr[1];
-			if (runtime && def.dso->tls_id >= static_tls_cnt) {
-				struct td_index *new = malloc(sizeof *new);
-				if (!new) {
-					error(
-					"Error relocating %s: cannot allocate TLSDESC for %s",
-					dso->name, sym ? name : "(local)" );
-					longjmp(*rtld_fail, 1);
-				}
-				new->next = dso->td_index;
-				dso->td_index = new;
-				new->args[0] = def.dso->tls_id;
-				new->args[1] = tls_val + addend;
-				reloc_addr[0] = (size_t)__tlsdesc_dynamic;
-				reloc_addr[1] = (size_t)new;
-			} else {
-				reloc_addr[0] = (size_t)__tlsdesc_static;
-#ifdef TLS_ABOVE_TP
-				reloc_addr[1] = tls_val + def.dso->tls_offset
-					+ TPOFF_K + addend;
-#else
-				reloc_addr[1] = tls_val - def.dso->tls_offset
-					+ addend;
-#endif
-			}
-			break;
-		default:
-			error("Error relocating %s: unsupported relocation type %d",
-				dso->name, type);
-			if (runtime) longjmp(*rtld_fail, 1);
-			continue;
-		}
-	}
-}
-
-/* A huge hack: to make up for the wastefulness of shared libraries
- * needing at least a page of dirty memory even if they have no global
- * data, we reclaim the gaps at the beginning and end of writable maps
- * and "donate" them to the heap by setting up minimal malloc
- * structures and then freeing them. */
-
-static void reclaim(struct dso *dso, size_t start, size_t end)
-{
-	size_t *a, *z;
-	if (start >= dso->relro_start && start < dso->relro_end) start = dso->relro_end;
-	if (end   >= dso->relro_start && end   < dso->relro_end) end = dso->relro_start;
-	start = start + 6*sizeof(size_t)-1 & -4*sizeof(size_t);
-	end = (end & -4*sizeof(size_t)) - 2*sizeof(size_t);
-	if (start>end || end-start < 4*sizeof(size_t)) return;
-	a = laddr(dso, start);
-	z = laddr(dso, end);
-	a[-2] = 1;
-	a[-1] = z[0] = end-start + 2*sizeof(size_t) | 1;
-	z[1] = 1;
-	free(a);
-}
-
-static void reclaim_gaps(struct dso *dso)
-{
-	Phdr *ph = dso->phdr;
-	size_t phcnt = dso->phnum;
-
-	if (DL_FDPIC) return; // FIXME
-	for (; phcnt--; ph=(void *)((char *)ph+dso->phentsize)) {
-		if (ph->p_type!=PT_LOAD) continue;
-		if ((ph->p_flags&(PF_R|PF_W))!=(PF_R|PF_W)) continue;
-		reclaim(dso, ph->p_vaddr & -PAGE_SIZE, ph->p_vaddr);
-		reclaim(dso, ph->p_vaddr+ph->p_memsz,
-			ph->p_vaddr+ph->p_memsz+PAGE_SIZE-1 & -PAGE_SIZE);
-	}
-}
-
-static void *mmap_fixed(void *p, size_t n, int prot, int flags, int fd, off_t off)
-{
-	char *q = mmap(p, n, prot, flags, fd, off);
-	if (q != MAP_FAILED || errno != EINVAL) return q;
-	/* Fallbacks for MAP_FIXED failure on NOMMU kernels. */
-	if (flags & MAP_ANONYMOUS) {
-		memset(p, 0, n);
-		return p;
-	}
-	ssize_t r;
-	if (lseek(fd, off, SEEK_SET) < 0) return MAP_FAILED;
-	for (q=p; n; q+=r, off+=r, n-=r) {
-		r = read(fd, q, n);
-		if (r < 0 && errno != EINTR) return MAP_FAILED;
-		if (!r) {
-			memset(q, 0, n);
-			break;
-		}
-	}
-	return p;
-}
-
-static void unmap_library(struct dso *dso)
-{
-	if (dso->loadmap) {
-		size_t i;
-		for (i=0; i<dso->loadmap->nsegs; i++) {
-			if (!dso->loadmap->segs[i].p_memsz)
-				continue;
-			munmap((void *)dso->loadmap->segs[i].addr,
-				dso->loadmap->segs[i].p_memsz);
-		}
-		free(dso->loadmap);
-	} else if (dso->map && dso->map_len) {
-		munmap(dso->map, dso->map_len);
-	}
-}
-
-static void *map_library(int fd, struct dso *dso)
-{
-	Ehdr buf[(896+sizeof(Ehdr))/sizeof(Ehdr)];
-	void *allocated_buf=0;
-	size_t phsize;
-	size_t addr_min=SIZE_MAX, addr_max=0, map_len;
-	size_t this_min, this_max;
-	size_t nsegs = 0;
-	off_t off_start;
-	Ehdr *eh;
-	Phdr *ph, *ph0;
-	unsigned prot;
-	unsigned char *map=MAP_FAILED, *base;
-	size_t dyn=0;
-	size_t tls_image=0;
-	size_t i;
-
-	ssize_t l = read(fd, buf, sizeof buf);
-	eh = buf;
-	if (l<0) return 0;
-	if (l<sizeof *eh || (eh->e_type != ET_DYN && eh->e_type != ET_EXEC))
-		goto noexec;
-	phsize = eh->e_phentsize * eh->e_phnum;
-	if (phsize > sizeof buf - sizeof *eh) {
-		allocated_buf = malloc(phsize);
-		if (!allocated_buf) return 0;
-		l = pread(fd, allocated_buf, phsize, eh->e_phoff);
-		if (l < 0) goto error;
-		if (l != phsize) goto noexec;
-		ph = ph0 = allocated_buf;
-	} else if (eh->e_phoff + phsize > l) {
-		l = pread(fd, buf+1, phsize, eh->e_phoff);
-		if (l < 0) goto error;
-		if (l != phsize) goto noexec;
-		ph = ph0 = (void *)(buf + 1);
-	} else {
-		ph = ph0 = (void *)((char *)buf + eh->e_phoff);
-	}
-	for (i=eh->e_phnum; i; i--, ph=(void *)((char *)ph+eh->e_phentsize)) {
-		if (ph->p_type == PT_DYNAMIC) {
-			dyn = ph->p_vaddr;
-		} else if (ph->p_type == PT_TLS) {
-			tls_image = ph->p_vaddr;
-			dso->tls_align = ph->p_align;
-			dso->tls_len = ph->p_filesz;
-			dso->tls_size = ph->p_memsz;
-		} else if (ph->p_type == PT_GNU_RELRO) {
-			dso->relro_start = ph->p_vaddr & -PAGE_SIZE;
-			dso->relro_end = (ph->p_vaddr + ph->p_memsz) & -PAGE_SIZE;
-		}
-		if (ph->p_type != PT_LOAD) continue;
-		nsegs++;
-		if (ph->p_vaddr < addr_min) {
-			addr_min = ph->p_vaddr;
-			off_start = ph->p_offset;
-			prot = (((ph->p_flags&PF_R) ? PROT_READ : 0) |
-				((ph->p_flags&PF_W) ? PROT_WRITE: 0) |
-				((ph->p_flags&PF_X) ? PROT_EXEC : 0));
-		}
-		if (ph->p_vaddr+ph->p_memsz > addr_max) {
-			addr_max = ph->p_vaddr+ph->p_memsz;
-		}
-	}
-	if (!dyn) goto noexec;
-	if (DL_FDPIC && !(eh->e_flags & FDPIC_CONSTDISP_FLAG)) {
-		dso->loadmap = calloc(1, sizeof *dso->loadmap
-			+ nsegs * sizeof *dso->loadmap->segs);
-		if (!dso->loadmap) goto error;
-		dso->loadmap->nsegs = nsegs;
-		for (ph=ph0, i=0; i<nsegs; ph=(void *)((char *)ph+eh->e_phentsize)) {
-			if (ph->p_type != PT_LOAD) continue;
-			prot = (((ph->p_flags&PF_R) ? PROT_READ : 0) |
-				((ph->p_flags&PF_W) ? PROT_WRITE: 0) |
-				((ph->p_flags&PF_X) ? PROT_EXEC : 0));
-			map = mmap(0, ph->p_memsz + (ph->p_vaddr & PAGE_SIZE-1),
-				prot, (prot&PROT_WRITE) ? MAP_PRIVATE : MAP_SHARED,
-				fd, ph->p_offset & -PAGE_SIZE);
-			if (map == MAP_FAILED) {
-				unmap_library(dso);
-				goto error;
-			}
-			dso->loadmap->segs[i].addr = (size_t)map +
-				(ph->p_vaddr & PAGE_SIZE-1);
-			dso->loadmap->segs[i].p_vaddr = ph->p_vaddr;
-			dso->loadmap->segs[i].p_memsz = ph->p_memsz;
-			i++;
-		}
-		map = (void *)dso->loadmap->segs[0].addr;
-		map_len = 0;
-		goto done_mapping;
-	}
-	addr_max += PAGE_SIZE-1;
-	addr_max &= -PAGE_SIZE;
-	addr_min &= -PAGE_SIZE;
-	off_start &= -PAGE_SIZE;
-	map_len = addr_max - addr_min + off_start;
-	/* The first time, we map too much, possibly even more than
-	 * the length of the file. This is okay because we will not
-	 * use the invalid part; we just need to reserve the right
-	 * amount of virtual address space to map over later. */
-	map = mmap((void *)addr_min, map_len, prot, MAP_PRIVATE, fd, off_start);
-	if (map==MAP_FAILED) goto error;
-	dso->map = map;
-	dso->map_len = map_len;
-	/* If the loaded file is not relocatable and the requested address is
-	 * not available, then the load operation must fail. */
-	if (eh->e_type != ET_DYN && addr_min && map!=(void *)addr_min) {
-		errno = EBUSY;
-		goto error;
-	}
-	base = map - addr_min;
-	dso->phdr = 0;
-	dso->phnum = 0;
-	for (ph=ph0, i=eh->e_phnum; i; i--, ph=(void *)((char *)ph+eh->e_phentsize)) {
-		if (ph->p_type != PT_LOAD) continue;
-		/* Check if the programs headers are in this load segment, and
-		 * if so, record the address for use by dl_iterate_phdr. */
-		if (!dso->phdr && eh->e_phoff >= ph->p_offset
-		    && eh->e_phoff+phsize <= ph->p_offset+ph->p_filesz) {
-			dso->phdr = (void *)(base + ph->p_vaddr
-				+ (eh->e_phoff-ph->p_offset));
-			dso->phnum = eh->e_phnum;
-			dso->phentsize = eh->e_phentsize;
-		}
-		/* Reuse the existing mapping for the lowest-address LOAD */
-		if ((ph->p_vaddr & -PAGE_SIZE) == addr_min) continue;
-		this_min = ph->p_vaddr & -PAGE_SIZE;
-		this_max = ph->p_vaddr+ph->p_memsz+PAGE_SIZE-1 & -PAGE_SIZE;
-		off_start = ph->p_offset & -PAGE_SIZE;
-		prot = (((ph->p_flags&PF_R) ? PROT_READ : 0) |
-			((ph->p_flags&PF_W) ? PROT_WRITE: 0) |
-			((ph->p_flags&PF_X) ? PROT_EXEC : 0));
-		if (mmap_fixed(base+this_min, this_max-this_min, prot, MAP_PRIVATE|MAP_FIXED, fd, off_start) == MAP_FAILED)
-			goto error;
-		if (ph->p_memsz > ph->p_filesz) {
-			size_t brk = (size_t)base+ph->p_vaddr+ph->p_filesz;
-			size_t pgbrk = brk+PAGE_SIZE-1 & -PAGE_SIZE;
-			memset((void *)brk, 0, pgbrk-brk & PAGE_SIZE-1);
-			if (pgbrk-(size_t)base < this_max && mmap_fixed((void *)pgbrk, (size_t)base+this_max-pgbrk, prot, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) == MAP_FAILED)
-				goto error;
-		}
-	}
-	for (i=0; ((size_t *)(base+dyn))[i]; i+=2)
-		if (((size_t *)(base+dyn))[i]==DT_TEXTREL) {
-			if (mprotect(map, map_len, PROT_READ|PROT_WRITE|PROT_EXEC)
-			    && errno != ENOSYS)
-				goto error;
-			break;
-		}
-done_mapping:
-	dso->base = base;
-	dso->dynv = laddr(dso, dyn);
-	if (dso->tls_size) dso->tls_image = laddr(dso, tls_image);
-	if (!runtime) reclaim_gaps(dso);
-	free(allocated_buf);
-	return map;
-noexec:
-	errno = ENOEXEC;
-error:
-	if (map!=MAP_FAILED) unmap_library(dso);
-	free(allocated_buf);
-	return 0;
-}
-
-static int path_open(const char *name, const char *s, char *buf, size_t buf_size)
-{
-	size_t l;
-	int fd;
-	for (;;) {
-		s += strspn(s, ":\n");
-		l = strcspn(s, ":\n");
-		if (l-1 >= INT_MAX) return -1;
-		if (snprintf(buf, buf_size, "%.*s/%s", (int)l, s, name) < buf_size) {
-			if ((fd = open(buf, O_RDONLY|O_CLOEXEC))>=0) return fd;
-			switch (errno) {
-			case ENOENT:
-			case ENOTDIR:
-			case EACCES:
-			case ENAMETOOLONG:
-				break;
-			default:
-				/* Any negative value but -1 will inhibit
-				 * futher path search. */
-				return -2;
-			}
-		}
-		s += l;
-	}
-}
-
-static int fixup_rpath(struct dso *p, char *buf, size_t buf_size)
-{
-	size_t n, l;
-	const char *s, *t, *origin;
-	char *d;
-	if (p->rpath || !p->rpath_orig) return 0;
-	if (!strchr(p->rpath_orig, '$')) {
-		p->rpath = p->rpath_orig;
-		return 0;
-	}
-	n = 0;
-	s = p->rpath_orig;
-	while ((t=strchr(s, '$'))) {
-		if (strncmp(t, "$ORIGIN", 7) && strncmp(t, "${ORIGIN}", 9))
-			return 0;
-		s = t+1;
-		n++;
-	}
-	if (n > SSIZE_MAX/PATH_MAX) return 0;
-
-	if (p->kernel_mapped) {
-		/* $ORIGIN searches cannot be performed for the main program
-		 * when it is suid/sgid/AT_SECURE. This is because the
-		 * pathname is under the control of the caller of execve.
-		 * For libraries, however, $ORIGIN can be processed safely
-		 * since the library's pathname came from a trusted source
-		 * (either system paths or a call to dlopen). */
-		if (libc.secure)
-			return 0;
-		l = readlink("/proc/self/exe", buf, buf_size);
-		if (l == -1) switch (errno) {
-		case ENOENT:
-		case ENOTDIR:
-		case EACCES:
-			break;
-		default:
-			return -1;
-		}
-		if (l >= buf_size)
-			return 0;
-		buf[l] = 0;
-		origin = buf;
-	} else {
-		origin = p->name;
-	}
-	t = strrchr(origin, '/');
-	l = t ? t-origin : 0;
-	p->rpath = malloc(strlen(p->rpath_orig) + n*l + 1);
-	if (!p->rpath) return -1;
-
-	d = p->rpath;
-	s = p->rpath_orig;
-	while ((t=strchr(s, '$'))) {
-		memcpy(d, s, t-s);
-		d += t-s;
-		memcpy(d, origin, l);
-		d += l;
-		/* It was determined previously that the '$' is followed
-		 * either by "ORIGIN" or "{ORIGIN}". */
-		s = t + 7 + 2*(t[1]=='{');
-	}
-	strcpy(d, s);
-	return 0;
-}
-
-static void decode_dyn(struct dso *p)
-{
-	size_t dyn[DYN_CNT];
-	decode_vec(p->dynv, dyn, DYN_CNT);
-	p->syms = laddr(p, dyn[DT_SYMTAB]);
-	p->strings = laddr(p, dyn[DT_STRTAB]);
-	if (dyn[0]&(1<<DT_HASH))
-		p->hashtab = laddr(p, dyn[DT_HASH]);
-	if (dyn[0]&(1<<DT_RPATH))
-		p->rpath_orig = p->strings + dyn[DT_RPATH];
-	if (dyn[0]&(1<<DT_RUNPATH))
-		p->rpath_orig = p->strings + dyn[DT_RUNPATH];
-	if (dyn[0]&(1<<DT_PLTGOT))
-		p->got = laddr(p, dyn[DT_PLTGOT]);
-	if (search_vec(p->dynv, dyn, DT_GNU_HASH))
-		p->ghashtab = laddr(p, *dyn);
-	if (search_vec(p->dynv, dyn, DT_VERSYM))
-		p->versym = laddr(p, *dyn);
-}
-
-static size_t count_syms(struct dso *p)
-{
-	if (p->hashtab) return p->hashtab[1];
-
-	size_t nsym, i;
-	uint32_t *buckets = p->ghashtab + 4 + (p->ghashtab[2]*sizeof(size_t)/4);
-	uint32_t *hashval;
-	for (i = nsym = 0; i < p->ghashtab[0]; i++) {
-		if (buckets[i] > nsym)
-			nsym = buckets[i];
-	}
-	if (nsym) {
-		hashval = buckets + p->ghashtab[0] + (nsym - p->ghashtab[1]);
-		do nsym++;
-		while (!(*hashval++ & 1));
-	}
-	return nsym;
-}
-
-static void *dl_mmap(size_t n)
-{
-	void *p;
-	int prot = PROT_READ|PROT_WRITE, flags = MAP_ANONYMOUS|MAP_PRIVATE;
-#ifdef SYS_mmap2
-	p = (void *)__syscall(SYS_mmap2, 0, n, prot, flags, -1, 0);
-#else
-	p = (void *)__syscall(SYS_mmap, 0, n, prot, flags, -1, 0);
-#endif
-	return p == MAP_FAILED ? 0 : p;
-}
-
-static void makefuncdescs(struct dso *p)
-{
-	static int self_done;
-	size_t nsym = count_syms(p);
-	size_t i, size = nsym * sizeof(*p->funcdescs);
-
-	if (!self_done) {
-		p->funcdescs = dl_mmap(size);
-		self_done = 1;
-	} else {
-		p->funcdescs = malloc(size);
-	}
-	if (!p->funcdescs) {
-		if (!runtime) a_crash();
-		error("Error allocating function descriptors for %s", p->name);
-		longjmp(*rtld_fail, 1);
-	}
-	for (i=0; i<nsym; i++) {
-		if ((p->syms[i].st_info&0xf)==STT_FUNC && p->syms[i].st_shndx) {
-			p->funcdescs[i].addr = laddr(p, p->syms[i].st_value);
-			p->funcdescs[i].got = p->got;
-		} else {
-			p->funcdescs[i].addr = 0;
-			p->funcdescs[i].got = 0;
-		}
-	}
-}
-
-static struct dso *load_library(const char *name, struct dso *needed_by)
-{
-	char buf[2*NAME_MAX+2];
-	const char *pathname;
-	unsigned char *map;
-	struct dso *p, temp_dso = {0};
-	int fd;
-	struct stat st;
-	size_t alloc_size;
-	int n_th = 0;
-	int is_self = 0;
-
-	if (!*name) {
-		errno = EINVAL;
-		return 0;
-	}
-
-	/* Catch and block attempts to reload the implementation itself */
-	if (name[0]=='l' && name[1]=='i' && name[2]=='b') {
-		static const char *rp, reserved[] =
-			"c\0pthread\0rt\0m\0dl\0util\0xnet\0";
-		char *z = strchr(name, '.');
-		if (z) {
-			size_t l = z-name;
-			for (rp=reserved; *rp && strncmp(name+3, rp, l-3); rp+=strlen(rp)+1);
-			if (*rp) {
-				if (ldd_mode) {
-					/* Track which names have been resolved
-					 * and only report each one once. */
-					static unsigned reported;
-					unsigned mask = 1U<<(rp-reserved);
-					if (!(reported & mask)) {
-						reported |= mask;
-						dprintf(1, "\t%s => %s (%p)\n",
-							name, ldso.name,
-							ldso.base);
-					}
-				}
-				is_self = 1;
-			}
-		}
-	}
-	if (!strcmp(name, ldso.name)) is_self = 1;
-	if (is_self) {
-		if (!ldso.prev) {
-			tail->next = &ldso;
-			ldso.prev = tail;
-			tail = ldso.next ? ldso.next : &ldso;
-		}
-		return &ldso;
-	}
-	if (strchr(name, '/')) {
-		pathname = name;
-		fd = open(name, O_RDONLY|O_CLOEXEC);
-	} else {
-		/* Search for the name to see if it's already loaded */
-		for (p=head->next; p; p=p->next) {
-			if (p->shortname && !strcmp(p->shortname, name)) {
-				p->refcnt++;
-				return p;
-			}
-		}
-		if (strlen(name) > NAME_MAX) return 0;
-		fd = -1;
-		if (env_path) fd = path_open(name, env_path, buf, sizeof buf);
-		for (p=needed_by; fd == -1 && p; p=p->needed_by) {
-			if (fixup_rpath(p, buf, sizeof buf) < 0)
-				fd = -2; /* Inhibit further search. */
-			if (p->rpath)
-				fd = path_open(name, p->rpath, buf, sizeof buf);
-		}
-		if (fd == -1) {
-			if (!sys_path) {
-				char *prefix = 0;
-				size_t prefix_len;
-				if (ldso.name[0]=='/') {
-					char *s, *t, *z;
-					for (s=t=z=ldso.name; *s; s++)
-						if (*s=='/') z=t, t=s;
-					prefix_len = z-ldso.name;
-					if (prefix_len < PATH_MAX)
-						prefix = ldso.name;
-				}
-				if (!prefix) {
-					prefix = "";
-					prefix_len = 0;
-				}
-				char etc_ldso_path[prefix_len + 1
-					+ sizeof "/etc/ld-musl-" LDSO_ARCH ".path"];
-				snprintf(etc_ldso_path, sizeof etc_ldso_path,
-					"%.*s/etc/ld-musl-" LDSO_ARCH ".path",
-					(int)prefix_len, prefix);
-				FILE *f = fopen(etc_ldso_path, "rbe");
-				if (f) {
-					if (getdelim(&sys_path, (size_t[1]){0}, 0, f) <= 0) {
-						free(sys_path);
-						sys_path = "";
-					}
-					fclose(f);
-				} else if (errno != ENOENT) {
-					sys_path = "";
-				}
-			}
-			if (!sys_path) sys_path = "/lib:/usr/local/lib:/usr/lib";
-			fd = path_open(name, sys_path, buf, sizeof buf);
-		}
-		pathname = buf;
-	}
-	if (fd < 0) return 0;
-	if (fstat(fd, &st) < 0) {
-		close(fd);
-		return 0;
-	}
-	for (p=head->next; p; p=p->next) {
-		if (p->dev == st.st_dev && p->ino == st.st_ino) {
-			/* If this library was previously loaded with a
-			 * pathname but a search found the same inode,
-			 * setup its shortname so it can be found by name. */
-			if (!p->shortname && pathname != name)
-				p->shortname = strrchr(p->name, '/')+1;
-			close(fd);
-			p->refcnt++;
-			return p;
-		}
-	}
-	map = noload ? 0 : map_library(fd, &temp_dso);
-	close(fd);
-	if (!map) return 0;
-
-	/* Allocate storage for the new DSO. When there is TLS, this
-	 * storage must include a reservation for all pre-existing
-	 * threads to obtain copies of both the new TLS, and an
-	 * extended DTV capable of storing an additional slot for
-	 * the newly-loaded DSO. */
-	alloc_size = sizeof *p + strlen(pathname) + 1;
-	if (runtime && temp_dso.tls_image) {
-		size_t per_th = temp_dso.tls_size + temp_dso.tls_align
-			+ sizeof(void *) * (tls_cnt+3);
-		n_th = libc.threads_minus_1 + 1;
-		if (n_th > SSIZE_MAX / per_th) alloc_size = SIZE_MAX;
-		else alloc_size += n_th * per_th;
-	}
-	p = calloc(1, alloc_size);
-	if (!p) {
-		unmap_library(&temp_dso);
-		return 0;
-	}
-	memcpy(p, &temp_dso, sizeof temp_dso);
-	decode_dyn(p);
-	p->dev = st.st_dev;
-	p->ino = st.st_ino;
-	p->refcnt = 1;
-	p->needed_by = needed_by;
-	p->name = p->buf;
-	strcpy(p->name, pathname);
-	/* Add a shortname only if name arg was not an explicit pathname. */
-	if (pathname != name) p->shortname = strrchr(p->name, '/')+1;
-	if (p->tls_image) {
-		p->tls_id = ++tls_cnt;
-		tls_align = MAXP2(tls_align, p->tls_align);
-#ifdef TLS_ABOVE_TP
-		p->tls_offset = tls_offset + ( (tls_align-1) &
-			-(tls_offset + (uintptr_t)p->tls_image) );
-		tls_offset += p->tls_size;
-#else
-		tls_offset += p->tls_size + p->tls_align - 1;
-		tls_offset -= (tls_offset + (uintptr_t)p->tls_image)
-			& (p->tls_align-1);
-		p->tls_offset = tls_offset;
-#endif
-		p->new_dtv = (void *)(-sizeof(size_t) &
-			(uintptr_t)(p->name+strlen(p->name)+sizeof(size_t)));
-		p->new_tls = (void *)(p->new_dtv + n_th*(tls_cnt+1));
-	}
-
-	tail->next = p;
-	p->prev = tail;
-	tail = p;
-
-	if (DL_FDPIC) makefuncdescs(p);
-
-	if (ldd_mode) dprintf(1, "\t%s => %s (%p)\n", name, pathname, p->base);
-
-	return p;
-}
-
-static void load_deps(struct dso *p)
-{
-	size_t i, ndeps=0;
-	struct dso ***deps = &p->deps, **tmp, *dep;
-	for (; p; p=p->next) {
-		for (i=0; p->dynv[i]; i+=2) {
-			if (p->dynv[i] != DT_NEEDED) continue;
-			dep = load_library(p->strings + p->dynv[i+1], p);
-			if (!dep) {
-				error("Error loading shared library %s: %m (needed by %s)",
-					p->strings + p->dynv[i+1], p->name);
-				if (runtime) longjmp(*rtld_fail, 1);
-				continue;
-			}
-			if (runtime) {
-				tmp = realloc(*deps, sizeof(*tmp)*(ndeps+2));
-				if (!tmp) longjmp(*rtld_fail, 1);
-				tmp[ndeps++] = dep;
-				tmp[ndeps] = 0;
-				*deps = tmp;
-			}
-		}
-	}
-}
-
-static void load_preload(char *s)
-{
-	int tmp;
-	char *z;
-	for (z=s; *z; s=z) {
-		for (   ; *s && (isspace(*s) || *s==':'); s++);
-		for (z=s; *z && !isspace(*z) && *z!=':'; z++);
-		tmp = *z;
-		*z = 0;
-		load_library(s, 0);
-		*z = tmp;
-	}
-}
-
-static void make_global(struct dso *p)
-{
-	for (; p; p=p->next) p->global = 1;
-}
-
-static void do_mips_relocs(struct dso *p, size_t *got)
-{
-	size_t i, j, rel[2];
-	unsigned char *base = p->base;
-	i=0; search_vec(p->dynv, &i, DT_MIPS_LOCAL_GOTNO);
-	if (p==&ldso) {
-		got += i;
-	} else {
-		while (i--) *got++ += (size_t)base;
-	}
-	j=0; search_vec(p->dynv, &j, DT_MIPS_GOTSYM);
-	i=0; search_vec(p->dynv, &i, DT_MIPS_SYMTABNO);
-	Sym *sym = p->syms + j;
-	rel[0] = (unsigned char *)got - base;
-	for (i-=j; i; i--, sym++, rel[0]+=sizeof(size_t)) {
-		rel[1] = sym-p->syms << 8 | R_MIPS_JUMP_SLOT;
-		do_relocs(p, rel, sizeof rel, 2);
-	}
-}
-
-static void reloc_all(struct dso *p)
-{
-	size_t dyn[DYN_CNT];
-	for (; p; p=p->next) {
-		if (p->relocated) continue;
-		decode_vec(p->dynv, dyn, DYN_CNT);
-		if (NEED_MIPS_GOT_RELOCS)
-			do_mips_relocs(p, laddr(p, dyn[DT_PLTGOT]));
-		do_relocs(p, laddr(p, dyn[DT_JMPREL]), dyn[DT_PLTRELSZ],
-			2+(dyn[DT_PLTREL]==DT_RELA));
-		do_relocs(p, laddr(p, dyn[DT_REL]), dyn[DT_RELSZ], 2);
-		do_relocs(p, laddr(p, dyn[DT_RELA]), dyn[DT_RELASZ], 3);
-
-		if (head != &ldso && p->relro_start != p->relro_end &&
-		    mprotect(laddr(p, p->relro_start), p->relro_end-p->relro_start, PROT_READ)
-		    && errno != ENOSYS) {
-			error("Error relocating %s: RELRO protection failed: %m",
-				p->name);
-			if (runtime) longjmp(*rtld_fail, 1);
-		}
-
-		p->relocated = 1;
-	}
-}
-
-static void kernel_mapped_dso(struct dso *p)
-{
-	size_t min_addr = -1, max_addr = 0, cnt;
-	Phdr *ph = p->phdr;
-	for (cnt = p->phnum; cnt--; ph = (void *)((char *)ph + p->phentsize)) {
-		if (ph->p_type == PT_DYNAMIC) {
-			p->dynv = laddr(p, ph->p_vaddr);
-		} else if (ph->p_type == PT_GNU_RELRO) {
-			p->relro_start = ph->p_vaddr & -PAGE_SIZE;
-			p->relro_end = (ph->p_vaddr + ph->p_memsz) & -PAGE_SIZE;
-		}
-		if (ph->p_type != PT_LOAD) continue;
-		if (ph->p_vaddr < min_addr)
-			min_addr = ph->p_vaddr;
-		if (ph->p_vaddr+ph->p_memsz > max_addr)
-			max_addr = ph->p_vaddr+ph->p_memsz;
-	}
-	min_addr &= -PAGE_SIZE;
-	max_addr = (max_addr + PAGE_SIZE-1) & -PAGE_SIZE;
-	p->map = p->base + min_addr;
-	p->map_len = max_addr - min_addr;
-	p->kernel_mapped = 1;
-}
-
-static void do_fini()
-{
-	struct dso *p;
-	size_t dyn[DYN_CNT];
-	for (p=fini_head; p; p=p->fini_next) {
-		if (!p->constructed) continue;
-		decode_vec(p->dynv, dyn, DYN_CNT);
-		if (dyn[0] & (1<<DT_FINI_ARRAY)) {
-			size_t n = dyn[DT_FINI_ARRAYSZ]/sizeof(size_t);
-			size_t *fn = (size_t *)laddr(p, dyn[DT_FINI_ARRAY])+n;
-			while (n--) ((void (*)(void))*--fn)();
-		}
-#ifndef NO_LEGACY_INITFINI
-		if ((dyn[0] & (1<<DT_FINI)) && dyn[DT_FINI])
-			fpaddr(p, dyn[DT_FINI])();
-#endif
-	}
-}
-
-static void do_init_fini(struct dso *p)
-{
-	size_t dyn[DYN_CNT];
-	int need_locking = libc.threads_minus_1;
-	/* Allow recursive calls that arise when a library calls
-	 * dlopen from one of its constructors, but block any
-	 * other threads until all ctors have finished. */
-	if (need_locking) pthread_mutex_lock(&init_fini_lock);
-	for (; p; p=p->prev) {
-		if (p->constructed) continue;
-		p->constructed = 1;
-		decode_vec(p->dynv, dyn, DYN_CNT);
-		if (dyn[0] & ((1<<DT_FINI) | (1<<DT_FINI_ARRAY))) {
-			p->fini_next = fini_head;
-			fini_head = p;
-		}
-#ifndef NO_LEGACY_INITFINI
-		if ((dyn[0] & (1<<DT_INIT)) && dyn[DT_INIT])
-			fpaddr(p, dyn[DT_INIT])();
-#endif
-		if (dyn[0] & (1<<DT_INIT_ARRAY)) {
-			size_t n = dyn[DT_INIT_ARRAYSZ]/sizeof(size_t);
-			size_t *fn = laddr(p, dyn[DT_INIT_ARRAY]);
-			while (n--) ((void (*)(void))*fn++)();
-		}
-		if (!need_locking && libc.threads_minus_1) {
-			need_locking = 1;
-			pthread_mutex_lock(&init_fini_lock);
-		}
-	}
-	if (need_locking) pthread_mutex_unlock(&init_fini_lock);
-}
-
-void __libc_start_init(void)
-{
-	do_init_fini(tail);
-}
-
-static void dl_debug_state(void)
-{
-}
-
-weak_alias(dl_debug_state, _dl_debug_state);
-
-void __reset_tls()
-{
-	pthread_t self = __pthread_self();
-	struct dso *p;
-	for (p=head; p; p=p->next) {
-		if (!p->tls_id || !self->dtv[p->tls_id]) continue;
-		memcpy(self->dtv[p->tls_id], p->tls_image, p->tls_len);
-		memset((char *)self->dtv[p->tls_id]+p->tls_len, 0,
-			p->tls_size - p->tls_len);
-		if (p->tls_id == (size_t)self->dtv[0]) break;
-	}
-}
-
-void *__copy_tls(unsigned char *mem)
-{
-	pthread_t td;
-	struct dso *p;
-	void **dtv;
-
-#ifdef TLS_ABOVE_TP
-	dtv = (void **)(mem + libc.tls_size) - (tls_cnt + 1);
-
-	mem += -((uintptr_t)mem + sizeof(struct pthread)) & (tls_align-1);
-	td = (pthread_t)mem;
-	mem += sizeof(struct pthread);
-
-	for (p=head; p; p=p->next) {
-		if (!p->tls_id) continue;
-		dtv[p->tls_id] = mem + p->tls_offset;
-		memcpy(dtv[p->tls_id], p->tls_image, p->tls_len);
-	}
-#else
-	dtv = (void **)mem;
-
-	mem += libc.tls_size - sizeof(struct pthread);
-	mem -= (uintptr_t)mem & (tls_align-1);
-	td = (pthread_t)mem;
-
-	for (p=head; p; p=p->next) {
-		if (!p->tls_id) continue;
-		dtv[p->tls_id] = mem - p->tls_offset;
-		memcpy(dtv[p->tls_id], p->tls_image, p->tls_len);
-	}
-#endif
-	dtv[0] = (void *)tls_cnt;
-	td->dtv = td->dtv_copy = dtv;
-	return td;
-}
-
-__attribute__((__visibility__("hidden")))
-void *__tls_get_new(size_t *v)
-{
-	pthread_t self = __pthread_self();
-
-	/* Block signals to make accessing new TLS async-signal-safe */
-	sigset_t set;
-	__block_all_sigs(&set);
-	if (v[0]<=(size_t)self->dtv[0]) {
-		__restore_sigs(&set);
-		return (char *)self->dtv[v[0]]+v[1]+DTP_OFFSET;
-	}
-
-	/* This is safe without any locks held because, if the caller
-	 * is able to request the Nth entry of the DTV, the DSO list
-	 * must be valid at least that far out and it was synchronized
-	 * at program startup or by an already-completed call to dlopen. */
-	struct dso *p;
-	for (p=head; p->tls_id != v[0]; p=p->next);
-
-	/* Get new DTV space from new DSO if needed */
-	if (v[0] > (size_t)self->dtv[0]) {
-		void **newdtv = p->new_dtv +
-			(v[0]+1)*sizeof(void *)*a_fetch_add(&p->new_dtv_idx,1);
-		memcpy(newdtv, self->dtv,
-			((size_t)self->dtv[0]+1) * sizeof(void *));
-		newdtv[0] = (void *)v[0];
-		self->dtv = self->dtv_copy = newdtv;
-	}
-
-	/* Get new TLS memory from all new DSOs up to the requested one */
-	unsigned char *mem;
-	for (p=head; ; p=p->next) {
-		if (!p->tls_id || self->dtv[p->tls_id]) continue;
-		mem = p->new_tls + (p->tls_size + p->tls_align)
-			* a_fetch_add(&p->new_tls_idx,1);
-		mem += ((uintptr_t)p->tls_image - (uintptr_t)mem)
-			& (p->tls_align-1);
-		self->dtv[p->tls_id] = mem;
-		memcpy(mem, p->tls_image, p->tls_len);
-		if (p->tls_id == v[0]) break;
-	}
-	__restore_sigs(&set);
-	return mem + v[1] + DTP_OFFSET;
-}
-
-static void update_tls_size()
-{
-	libc.tls_size = ALIGN(
-		(1+tls_cnt) * sizeof(void *) +
-		tls_offset +
-		sizeof(struct pthread) +
-		tls_align * 2,
-	tls_align);
-}
-
-/* Stage 1 of the dynamic linker is defined in dlstart.c. It calls the
- * following stage 2 and stage 3 functions via primitive symbolic lookup
- * since it does not have access to their addresses to begin with. */
-
-/* Stage 2 of the dynamic linker is called after relative relocations 
- * have been processed. It can make function calls to static functions
- * and access string literals and static data, but cannot use extern
- * symbols. Its job is to perform symbolic relocations on the dynamic
- * linker itself, but some of the relocations performed may need to be
- * replaced later due to copy relocations in the main program. */
-
-__attribute__((__visibility__("hidden")))
-void __dls2(unsigned char *base, size_t *sp)
-{
-	if (DL_FDPIC) {
-		void *p1 = (void *)sp[-2];
-		void *p2 = (void *)sp[-1];
-		if (!p1) {
-			size_t *auxv, aux[AUX_CNT];
-			for (auxv=sp+1+*sp+1; *auxv; auxv++); auxv++;
-			decode_vec(auxv, aux, AUX_CNT);
-			if (aux[AT_BASE]) ldso.base = (void *)aux[AT_BASE];
-			else ldso.base = (void *)(aux[AT_PHDR] & -4096);
-		}
-		app_loadmap = p2 ? p1 : 0;
-		ldso.loadmap = p2 ? p2 : p1;
-		ldso.base = laddr(&ldso, 0);
-	} else {
-		ldso.base = base;
-	}
-	Ehdr *ehdr = (void *)ldso.base;
-	ldso.name = ldso.shortname = "libc.so";
-	ldso.global = 1;
-	ldso.phnum = ehdr->e_phnum;
-	ldso.phdr = laddr(&ldso, ehdr->e_phoff);
-	ldso.phentsize = ehdr->e_phentsize;
-	kernel_mapped_dso(&ldso);
-	decode_dyn(&ldso);
-
-	if (DL_FDPIC) makefuncdescs(&ldso);
-
-	/* Prepare storage for to save clobbered REL addends so they
-	 * can be reused in stage 3. There should be very few. If
-	 * something goes wrong and there are a huge number, abort
-	 * instead of risking stack overflow. */
-	size_t dyn[DYN_CNT];
-	decode_vec(ldso.dynv, dyn, DYN_CNT);
-	size_t *rel = laddr(&ldso, dyn[DT_REL]);
-	size_t rel_size = dyn[DT_RELSZ];
-	size_t symbolic_rel_cnt = 0;
-	apply_addends_to = rel;
-	for (; rel_size; rel+=2, rel_size-=2*sizeof(size_t))
-		if (!IS_RELATIVE(rel[1], ldso.syms)) symbolic_rel_cnt++;
-	if (symbolic_rel_cnt >= ADDEND_LIMIT) a_crash();
-	size_t addends[symbolic_rel_cnt+1];
-	saved_addends = addends;
-
-	head = &ldso;
-	reloc_all(&ldso);
-
-	ldso.relocated = 0;
-
-	/* Call dynamic linker stage-3, __dls3, looking it up
-	 * symbolically as a barrier against moving the address
-	 * load across the above relocation processing. */
-	struct symdef dls3_def = find_sym(&ldso, "__dls3", 0);
-	if (DL_FDPIC) ((stage3_func)&ldso.funcdescs[dls3_def.sym-ldso.syms])(sp);
-	else ((stage3_func)laddr(&ldso, dls3_def.sym->st_value))(sp);
-}
-
-/* Stage 3 of the dynamic linker is called with the dynamic linker/libc
- * fully functional. Its job is to load (if not already loaded) and
- * process dependencies and relocations for the main application and
- * transfer control to its entry point. */
-
-_Noreturn void __dls3(size_t *sp)
-{
-	static struct dso app, vdso;
-	size_t aux[AUX_CNT], *auxv;
-	size_t i;
-	char *env_preload=0;
-	size_t vdso_base;
-	int argc = *sp;
-	char **argv = (void *)(sp+1);
-	char **argv_orig = argv;
-	char **envp = argv+argc+1;
-
-	/* Find aux vector just past environ[] and use it to initialize
-	 * global data that may be needed before we can make syscalls. */
-	__environ = envp;
-	for (i=argc+1; argv[i]; i++);
-	libc.auxv = auxv = (void *)(argv+i+1);
-	decode_vec(auxv, aux, AUX_CNT);
-	__hwcap = aux[AT_HWCAP];
-	libc.page_size = aux[AT_PAGESZ];
-	libc.secure = ((aux[0]&0x7800)!=0x7800 || aux[AT_UID]!=aux[AT_EUID]
-		|| aux[AT_GID]!=aux[AT_EGID] || aux[AT_SECURE]);
-
-	/* Setup early thread pointer in builtin_tls for ldso/libc itself to
-	 * use during dynamic linking. If possible it will also serve as the
-	 * thread pointer at runtime. */
-	libc.tls_size = sizeof builtin_tls;
-	if (__init_tp(__copy_tls((void *)builtin_tls)) < 0) {
-		a_crash();
-	}
-
-	/* Only trust user/env if kernel says we're not suid/sgid */
-	if (!libc.secure) {
-		env_path = getenv("LD_LIBRARY_PATH");
-		env_preload = getenv("LD_PRELOAD");
-	}
-
-	/* If the main program was already loaded by the kernel,
-	 * AT_PHDR will point to some location other than the dynamic
-	 * linker's program headers. */
-	if (aux[AT_PHDR] != (size_t)ldso.phdr) {
-		size_t interp_off = 0;
-		size_t tls_image = 0;
-		/* Find load address of the main program, via AT_PHDR vs PT_PHDR. */
-		Phdr *phdr = app.phdr = (void *)aux[AT_PHDR];
-		app.phnum = aux[AT_PHNUM];
-		app.phentsize = aux[AT_PHENT];
-		for (i=aux[AT_PHNUM]; i; i--, phdr=(void *)((char *)phdr + aux[AT_PHENT])) {
-			if (phdr->p_type == PT_PHDR)
-				app.base = (void *)(aux[AT_PHDR] - phdr->p_vaddr);
-			else if (phdr->p_type == PT_INTERP)
-				interp_off = (size_t)phdr->p_vaddr;
-			else if (phdr->p_type == PT_TLS) {
-				tls_image = phdr->p_vaddr;
-				app.tls_len = phdr->p_filesz;
-				app.tls_size = phdr->p_memsz;
-				app.tls_align = phdr->p_align;
-			}
-		}
-		if (DL_FDPIC) app.loadmap = app_loadmap;
-		if (app.tls_size) app.tls_image = laddr(&app, tls_image);
-		if (interp_off) ldso.name = laddr(&app, interp_off);
-		if ((aux[0] & (1UL<<AT_EXECFN))
-		    && strncmp((char *)aux[AT_EXECFN], "/proc/", 6))
-			app.name = (char *)aux[AT_EXECFN];
-		else
-			app.name = argv[0];
-		kernel_mapped_dso(&app);
-	} else {
-		int fd;
-		char *ldname = argv[0];
-		size_t l = strlen(ldname);
-		if (l >= 3 && !strcmp(ldname+l-3, "ldd")) ldd_mode = 1;
-		argv++;
-		while (argv[0] && argv[0][0]=='-' && argv[0][1]=='-') {
-			char *opt = argv[0]+2;
-			*argv++ = (void *)-1;
-			if (!*opt) {
-				break;
-			} else if (!memcmp(opt, "list", 5)) {
-				ldd_mode = 1;
-			} else if (!memcmp(opt, "library-path", 12)) {
-				if (opt[12]=='=') env_path = opt+13;
-				else if (opt[12]) *argv = 0;
-				else if (*argv) env_path = *argv++;
-			} else if (!memcmp(opt, "preload", 7)) {
-				if (opt[7]=='=') env_preload = opt+8;
-				else if (opt[7]) *argv = 0;
-				else if (*argv) env_preload = *argv++;
-			} else {
-				argv[0] = 0;
-			}
-		}
-		argv[-1] = (void *)(argc - (argv-argv_orig));
-		if (!argv[0]) {
-			dprintf(2, "musl libc\n"
-				"Version %s\n"
-				"Dynamic Program Loader\n"
-				"Usage: %s [options] [--] pathname%s\n",
-				__libc_get_version(), ldname,
-				ldd_mode ? "" : " [args]");
-			_exit(1);
-		}
-		fd = open(argv[0], O_RDONLY);
-		if (fd < 0) {
-			dprintf(2, "%s: cannot load %s: %s\n", ldname, argv[0], strerror(errno));
-			_exit(1);
-		}
-		runtime = 1;
-		Ehdr *ehdr = (void *)map_library(fd, &app);
-		if (!ehdr) {
-			dprintf(2, "%s: %s: Not a valid dynamic program\n", ldname, argv[0]);
-			_exit(1);
-		}
-		runtime = 0;
-		close(fd);
-		ldso.name = ldname;
-		app.name = argv[0];
-		aux[AT_ENTRY] = (size_t)laddr(&app, ehdr->e_entry);
-		/* Find the name that would have been used for the dynamic
-		 * linker had ldd not taken its place. */
-		if (ldd_mode) {
-			for (i=0; i<app.phnum; i++) {
-				if (app.phdr[i].p_type == PT_INTERP)
-					ldso.name = laddr(&app, app.phdr[i].p_vaddr);
-			}
-			dprintf(1, "\t%s (%p)\n", ldso.name, ldso.base);
-		}
-	}
-	if (app.tls_size) {
-		app.tls_id = tls_cnt = 1;
-#ifdef TLS_ABOVE_TP
-		app.tls_offset = 0;
-		tls_offset = app.tls_size
-			+ ( -((uintptr_t)app.tls_image + app.tls_size)
-			& (app.tls_align-1) );
-#else
-		tls_offset = app.tls_offset = app.tls_size
-			+ ( -((uintptr_t)app.tls_image + app.tls_size)
-			& (app.tls_align-1) );
-#endif
-		tls_align = MAXP2(tls_align, app.tls_align);
-	}
-	app.global = 1;
-	decode_dyn(&app);
-	if (DL_FDPIC) {
-		makefuncdescs(&app);
-		if (!app.loadmap) {
-			app.loadmap = (void *)&app_dummy_loadmap;
-			app.loadmap->nsegs = 1;
-			app.loadmap->segs[0].addr = (size_t)app.map;
-			app.loadmap->segs[0].p_vaddr = (size_t)app.map
-				- (size_t)app.base;
-			app.loadmap->segs[0].p_memsz = app.map_len;
-		}
-		argv[-3] = (void *)app.loadmap;
-	}
-
-	/* Attach to vdso, if provided by the kernel */
-	if (search_vec(auxv, &vdso_base, AT_SYSINFO_EHDR)) {
-		Ehdr *ehdr = (void *)vdso_base;
-		Phdr *phdr = vdso.phdr = (void *)(vdso_base + ehdr->e_phoff);
-		vdso.phnum = ehdr->e_phnum;
-		vdso.phentsize = ehdr->e_phentsize;
-		for (i=ehdr->e_phnum; i; i--, phdr=(void *)((char *)phdr + ehdr->e_phentsize)) {
-			if (phdr->p_type == PT_DYNAMIC)
-				vdso.dynv = (void *)(vdso_base + phdr->p_offset);
-			if (phdr->p_type == PT_LOAD)
-				vdso.base = (void *)(vdso_base - phdr->p_vaddr + phdr->p_offset);
-		}
-		vdso.name = "";
-		vdso.shortname = "linux-gate.so.1";
-		vdso.global = 1;
-		vdso.relocated = 1;
-		decode_dyn(&vdso);
-		vdso.prev = &ldso;
-		ldso.next = &vdso;
-	}
-
-	/* Initial dso chain consists only of the app. */
-	head = tail = &app;
-
-	/* Donate unused parts of app and library mapping to malloc */
-	reclaim_gaps(&app);
-	reclaim_gaps(&ldso);
-
-	/* Load preload/needed libraries, add their symbols to the global
-	 * namespace, and perform all remaining relocations. */
-	if (env_preload) load_preload(env_preload);
-	load_deps(&app);
-	make_global(&app);
-
-#ifndef DYNAMIC_IS_RO
-	for (i=0; app.dynv[i]; i+=2)
-		if (app.dynv[i]==DT_DEBUG)
-			app.dynv[i+1] = (size_t)&debug;
-#endif
-
-	/* The main program must be relocated LAST since it may contin
-	 * copy relocations which depend on libraries' relocations. */
-	reloc_all(app.next);
-	reloc_all(&app);
-
-	update_tls_size();
-	if (libc.tls_size > sizeof builtin_tls || tls_align > MIN_TLS_ALIGN) {
-		void *initial_tls = calloc(libc.tls_size, 1);
-		if (!initial_tls) {
-			dprintf(2, "%s: Error getting %zu bytes thread-local storage: %m\n",
-				argv[0], libc.tls_size);
-			_exit(127);
-		}
-		if (__init_tp(__copy_tls(initial_tls)) < 0) {
-			a_crash();
-		}
-	} else {
-		size_t tmp_tls_size = libc.tls_size;
-		pthread_t self = __pthread_self();
-		/* Temporarily set the tls size to the full size of
-		 * builtin_tls so that __copy_tls will use the same layout
-		 * as it did for before. Then check, just to be safe. */
-		libc.tls_size = sizeof builtin_tls;
-		if (__copy_tls((void*)builtin_tls) != self) a_crash();
-		libc.tls_size = tmp_tls_size;
-	}
-	static_tls_cnt = tls_cnt;
-
-	if (ldso_fail) _exit(127);
-	if (ldd_mode) _exit(0);
-
-	/* Switch to runtime mode: any further failures in the dynamic
-	 * linker are a reportable failure rather than a fatal startup
-	 * error. */
-	runtime = 1;
-
-	debug.ver = 1;
-	debug.bp = dl_debug_state;
-	debug.head = head;
-	debug.base = ldso.base;
-	debug.state = 0;
-	_dl_debug_state();
-
-	__init_libc(envp, argv[0]);
-	atexit(do_fini);
-	errno = 0;
-
-	CRTJMP((void *)aux[AT_ENTRY], argv-1);
-	for(;;);
-}
-
-void *dlopen(const char *file, int mode)
-{
-	struct dso *volatile p, *orig_tail, *next;
-	size_t orig_tls_cnt, orig_tls_offset, orig_tls_align;
-	size_t i;
-	int cs;
-	jmp_buf jb;
-
-	if (!file) return head;
-
-	pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs);
-	pthread_rwlock_wrlock(&lock);
-	__inhibit_ptc();
-
-	p = 0;
-	orig_tls_cnt = tls_cnt;
-	orig_tls_offset = tls_offset;
-	orig_tls_align = tls_align;
-	orig_tail = tail;
-	noload = mode & RTLD_NOLOAD;
-
-	rtld_fail = &jb;
-	if (setjmp(*rtld_fail)) {
-		/* Clean up anything new that was (partially) loaded */
-		if (p && p->deps) for (i=0; p->deps[i]; i++)
-			if (p->deps[i]->global < 0)
-				p->deps[i]->global = 0;
-		for (p=orig_tail->next; p; p=next) {
-			next = p->next;
-			while (p->td_index) {
-				void *tmp = p->td_index->next;
-				free(p->td_index);
-				p->td_index = tmp;
-			}
-			free(p->funcdescs);
-			if (p->rpath != p->rpath_orig)
-				free(p->rpath);
-			free(p->deps);
-			unmap_library(p);
-			free(p);
-		}
-		tls_cnt = orig_tls_cnt;
-		tls_offset = orig_tls_offset;
-		tls_align = orig_tls_align;
-		tail = orig_tail;
-		tail->next = 0;
-		p = 0;
-		goto end;
-	} else p = load_library(file, head);
-
-	if (!p) {
-		error(noload ?
-			"Library %s is not already loaded" :
-			"Error loading shared library %s: %m",
-			file);
-		goto end;
-	}
-
-	/* First load handling */
-	if (!p->deps) {
-		load_deps(p);
-		if (p->deps) for (i=0; p->deps[i]; i++)
-			if (!p->deps[i]->global)
-				p->deps[i]->global = -1;
-		if (!p->global) p->global = -1;
-		reloc_all(p);
-		if (p->deps) for (i=0; p->deps[i]; i++)
-			if (p->deps[i]->global < 0)
-				p->deps[i]->global = 0;
-		if (p->global < 0) p->global = 0;
-	}
-
-	if (mode & RTLD_GLOBAL) {
-		if (p->deps) for (i=0; p->deps[i]; i++)
-			p->deps[i]->global = 1;
-		p->global = 1;
-	}
-
-	update_tls_size();
-	_dl_debug_state();
-	orig_tail = tail;
-end:
-	__release_ptc();
-	if (p) gencnt++;
-	pthread_rwlock_unlock(&lock);
-	if (p) do_init_fini(orig_tail);
-	pthread_setcancelstate(cs, 0);
-	return p;
-}
-
-static int invalid_dso_handle(void *h)
-{
-	struct dso *p;
-	for (p=head; p; p=p->next) if (h==p) return 0;
-	error("Invalid library handle %p", (void *)h);
-	return 1;
-}
-
-static void *addr2dso(size_t a)
-{
-	struct dso *p;
-	size_t i;
-	if (DL_FDPIC) for (p=head; p; p=p->next) {
-		i = count_syms(p);
-		if (a-(size_t)p->funcdescs < i*sizeof(*p->funcdescs))
-			return p;
-	}
-	for (p=head; p; p=p->next) {
-		if (DL_FDPIC && p->loadmap) {
-			for (i=0; i<p->loadmap->nsegs; i++) {
-				if (a-p->loadmap->segs[i].p_vaddr
-				    < p->loadmap->segs[i].p_memsz)
-					return p;
-			}
-		} else {
-			if (a-(size_t)p->map < p->map_len)
-				return p;
-		}
-	}
-	return 0;
-}
-
-void *__tls_get_addr(size_t *);
-
-static void *do_dlsym(struct dso *p, const char *s, void *ra)
-{
-	size_t i;
-	uint32_t h = 0, gh = 0, *ght;
-	Sym *sym;
-	if (p == head || p == RTLD_DEFAULT || p == RTLD_NEXT) {
-		if (p == RTLD_DEFAULT) {
-			p = head;
-		} else if (p == RTLD_NEXT) {
-			p = addr2dso((size_t)ra);
-			if (!p) p=head;
-			p = p->next;
-		}
-		struct symdef def = find_sym(p, s, 0);
-		if (!def.sym) goto failed;
-		if ((def.sym->st_info&0xf) == STT_TLS)
-			return __tls_get_addr((size_t []){def.dso->tls_id, def.sym->st_value});
-		if (DL_FDPIC && (def.sym->st_info&0xf) == STT_FUNC)
-			return def.dso->funcdescs + (def.sym - def.dso->syms);
-		return laddr(def.dso, def.sym->st_value);
-	}
-	if (invalid_dso_handle(p))
-		return 0;
-	if ((ght = p->ghashtab)) {
-		gh = gnu_hash(s);
-		sym = gnu_lookup(gh, ght, p, s);
-	} else {
-		h = sysv_hash(s);
-		sym = sysv_lookup(s, h, p);
-	}
-	if (sym && (sym->st_info&0xf) == STT_TLS)
-		return __tls_get_addr((size_t []){p->tls_id, sym->st_value});
-	if (DL_FDPIC && sym && sym->st_shndx && (sym->st_info&0xf) == STT_FUNC)
-		return p->funcdescs + (sym - p->syms);
-	if (sym && sym->st_value && (1<<(sym->st_info&0xf) & OK_TYPES))
-		return laddr(p, sym->st_value);
-	if (p->deps) for (i=0; p->deps[i]; i++) {
-		if ((ght = p->deps[i]->ghashtab)) {
-			if (!gh) gh = gnu_hash(s);
-			sym = gnu_lookup(gh, ght, p->deps[i], s);
-		} else {
-			if (!h) h = sysv_hash(s);
-			sym = sysv_lookup(s, h, p->deps[i]);
-		}
-		if (sym && (sym->st_info&0xf) == STT_TLS)
-			return __tls_get_addr((size_t []){p->deps[i]->tls_id, sym->st_value});
-		if (DL_FDPIC && sym && sym->st_shndx && (sym->st_info&0xf) == STT_FUNC)
-			return p->deps[i]->funcdescs + (sym - p->deps[i]->syms);
-		if (sym && sym->st_value && (1<<(sym->st_info&0xf) & OK_TYPES))
-			return laddr(p->deps[i], sym->st_value);
-	}
-failed:
-	error("Symbol not found: %s", s);
-	return 0;
-}
-
-int __dladdr(const void *addr, Dl_info *info)
-{
-	struct dso *p;
-	Sym *sym, *bestsym;
-	uint32_t nsym;
-	char *strings;
-	void *best = 0;
-
-	pthread_rwlock_rdlock(&lock);
-	p = addr2dso((size_t)addr);
-	pthread_rwlock_unlock(&lock);
-
-	if (!p) return 0;
-
-	sym = p->syms;
-	strings = p->strings;
-	nsym = count_syms(p);
-
-	if (DL_FDPIC) {
-		size_t idx = ((size_t)addr-(size_t)p->funcdescs)
-			/ sizeof(*p->funcdescs);
-		if (idx < nsym && (sym[idx].st_info&0xf) == STT_FUNC) {
-			best = p->funcdescs + idx;
-			bestsym = sym + idx;
-		}
-	}
-
-	if (!best) for (; nsym; nsym--, sym++) {
-		if (sym->st_value
-		 && (1<<(sym->st_info&0xf) & OK_TYPES)
-		 && (1<<(sym->st_info>>4) & OK_BINDS)) {
-			void *symaddr = laddr(p, sym->st_value);
-			if (symaddr > addr || symaddr < best)
-				continue;
-			best = symaddr;
-			bestsym = sym;
-			if (addr == symaddr)
-				break;
-		}
-	}
-
-	if (!best) return 0;
-
-	if (DL_FDPIC && (bestsym->st_info&0xf) == STT_FUNC)
-		best = p->funcdescs + (bestsym - p->syms);
-
-	info->dli_fname = p->name;
-	info->dli_fbase = p->base;
-	info->dli_sname = strings + bestsym->st_name;
-	info->dli_saddr = best;
-
-	return 1;
-}
-
-__attribute__((__visibility__("hidden")))
-void *__dlsym(void *restrict p, const char *restrict s, void *restrict ra)
-{
-	void *res;
-	pthread_rwlock_rdlock(&lock);
-	res = do_dlsym(p, s, ra);
-	pthread_rwlock_unlock(&lock);
-	return res;
-}
-
-int dl_iterate_phdr(int(*callback)(struct dl_phdr_info *info, size_t size, void *data), void *data)
-{
-	struct dso *current;
-	struct dl_phdr_info info;
-	int ret = 0;
-	for(current = head; current;) {
-		info.dlpi_addr      = (uintptr_t)current->base;
-		info.dlpi_name      = current->name;
-		info.dlpi_phdr      = current->phdr;
-		info.dlpi_phnum     = current->phnum;
-		info.dlpi_adds      = gencnt;
-		info.dlpi_subs      = 0;
-		info.dlpi_tls_modid = current->tls_id;
-		info.dlpi_tls_data  = current->tls_image;
-
-		ret = (callback)(&info, sizeof (info), data);
-
-		if (ret != 0) break;
-
-		pthread_rwlock_rdlock(&lock);
-		current = current->next;
-		pthread_rwlock_unlock(&lock);
-	}
-	return ret;
-}
-#else
-static int invalid_dso_handle(void *h)
-{
-	error("Invalid library handle %p", (void *)h);
-	return 1;
-}
-void *dlopen(const char *file, int mode)
-{
-	error("Dynamic loading not supported");
-	return 0;
-}
-void *__dlsym(void *restrict p, const char *restrict s, void *restrict ra)
-{
-	error("Symbol not found: %s", s);
-	return 0;
-}
-int __dladdr (const void *addr, Dl_info *info)
-{
-	return 0;
-}
-#endif
-
-int __dlinfo(void *dso, int req, void *res)
-{
-	if (invalid_dso_handle(dso)) return -1;
-	if (req != RTLD_DI_LINKMAP) {
-		error("Unsupported request %d", req);
-		return -1;
-	}
-	*(struct link_map **)res = dso;
-	return 0;
-}
-
-char *dlerror()
-{
-	pthread_t self = __pthread_self();
-	if (!self->dlerror_flag) return 0;
-	self->dlerror_flag = 0;
-	char *s = self->dlerror_buf;
-	if (s == (void *)-1)
-		return "Dynamic linker failed to allocate memory for error message";
-	else
-		return s;
-}
-
-int dlclose(void *p)
-{
-	return invalid_dso_handle(p);
-}
-
-void __dl_thread_cleanup(void)
-{
-	pthread_t self = __pthread_self();
-	if (self->dlerror_buf != (void *)-1)
-		free(self->dlerror_buf);
-}
-
-static void error(const char *fmt, ...)
-{
-	va_list ap;
-	va_start(ap, fmt);
-#ifdef SHARED
-	if (!runtime) {
-		vdprintf(2, fmt, ap);
-		dprintf(2, "\n");
-		ldso_fail = 1;
-		va_end(ap);
-		return;
-	}
-#endif
-	pthread_t self = __pthread_self();
-	if (self->dlerror_buf != (void *)-1)
-		free(self->dlerror_buf);
-	size_t len = vsnprintf(0, 0, fmt, ap);
-	va_end(ap);
-	char *buf = malloc(len+1);
-	if (buf) {
-		va_start(ap, fmt);
-		vsnprintf(buf, len+1, fmt, ap);
-		va_end(ap);
-	} else {
-		buf = (void *)-1;	
-	}
-	self->dlerror_buf = buf;
-	self->dlerror_flag = 1;
-}
--- a/src/ldso/tlsdesc.c
+++ b/src/ldso/tlsdesc.c
@@ -1,5 +1,3 @@
-#ifdef SHARED
-
 #include <stddef.h>
 #include "libc.h"
 
@@ -12,5 +10,3 @@ ptrdiff_t __tlsdesc_static()
 }
 
 weak_alias(__tlsdesc_static, __tlsdesc_dynamic);
-
-#endif
--- a/src/legacy/utmpx.c
+++ b/src/legacy/utmpx.c
@@ -1,5 +1,6 @@
 #include <utmpx.h>
 #include <stddef.h>
+#include <errno.h>
 #include "libc.h"
 
 void endutxent(void)
@@ -34,6 +35,12 @@ void updwtmpx(const char *f, const struc
 {
 }
 
+int __utmpxname(const char *f)
+{
+	errno = ENOTSUP;
+	return -1;
+}
+
 weak_alias(endutxent, endutent);
 weak_alias(setutxent, setutent);
 weak_alias(getutxent, getutent);
@@ -41,3 +48,5 @@ weak_alias(getutxid, getutid);
 weak_alias(getutxline, getutline);
 weak_alias(pututxline, pututline);
 weak_alias(updwtmpx, updwtmp);
+weak_alias(__utmpxname, utmpname);
+weak_alias(__utmpxname, utmpxname);
--- /dev/null
+++ b/src/linux/x32/sysinfo.c
@@ -0,0 +1,50 @@
+#include <sys/sysinfo.h>
+#include "syscall.h"
+#include "libc.h"
+
+#define klong long long
+#define kulong unsigned long long
+
+struct kernel_sysinfo {
+	klong uptime;
+	kulong loads[3];
+	kulong totalram;
+	kulong freeram;
+	kulong sharedram;
+	kulong bufferram;
+	kulong totalswap;
+	kulong freeswap;
+	short procs;
+	short pad;
+	kulong totalhigh;
+	kulong freehigh;
+	unsigned mem_unit;
+};
+
+int __lsysinfo(struct sysinfo *info)
+{
+	struct kernel_sysinfo tmp;
+	int ret = syscall(SYS_sysinfo, &tmp);
+	if(ret == -1) return ret;
+	info->uptime = tmp.uptime;
+	info->loads[0] = tmp.loads[0];
+	info->loads[1] = tmp.loads[1];
+	info->loads[2] = tmp.loads[2];
+	kulong shifts;
+	kulong max = tmp.totalram | tmp.totalswap;
+	__asm__("bsr %1,%0" : "=r"(shifts) : "r"(max));
+	shifts = shifts >= 32 ? shifts - 31 : 0;
+	info->totalram = tmp.totalram >> shifts;
+	info->freeram = tmp.freeram >> shifts;
+	info->sharedram = tmp.sharedram >> shifts;
+	info->bufferram = tmp.bufferram >> shifts;
+	info->totalswap = tmp.totalswap >> shifts;
+	info->freeswap = tmp.freeswap >> shifts;
+	info->procs = tmp.procs ;
+	info->totalhigh = tmp.totalhigh >> shifts;
+	info->freehigh = tmp.freehigh >> shifts;
+	info->mem_unit = (tmp.mem_unit ? tmp.mem_unit : 1) << shifts;
+	return ret;
+}
+
+weak_alias(__lsysinfo, sysinfo);
--- a/src/linux/x32/sysinfo.s
+++ /dev/null
@@ -1 +0,0 @@
-# see arch/x32/src/sysinfo.c
--- a/src/locale/langinfo.c
+++ b/src/locale/langinfo.c
@@ -37,23 +37,23 @@ char *__nl_langinfo_l(nl_item item, loca
 	
 	switch (cat) {
 	case LC_NUMERIC:
-		if (idx > 1) return NULL;
+		if (idx > 1) return "";
 		str = c_numeric;
 		break;
 	case LC_TIME:
-		if (idx > 0x31) return NULL;
+		if (idx > 0x31) return "";
 		str = c_time;
 		break;
 	case LC_MONETARY:
-		if (idx > 0) return NULL;
+		if (idx > 0) return "";
 		str = "";
 		break;
 	case LC_MESSAGES:
-		if (idx > 3) return NULL;
+		if (idx > 3) return "";
 		str = c_messages;
 		break;
 	default:
-		return NULL;
+		return "";
 	}
 
 	for (; idx; idx--, str++) for (; *str; str++);
--- a/src/malloc/lite_malloc.c
+++ b/src/malloc/lite_malloc.c
@@ -8,7 +8,7 @@
 
 void *__expand_heap(size_t *);
 
-void *__simple_malloc(size_t n)
+static void *__simple_malloc(size_t n)
 {
 	static char *cur, *end;
 	static volatile int lock[2];
--- a/src/math/__rem_pio2.c
+++ b/src/math/__rem_pio2.c
@@ -118,7 +118,7 @@ int __rem_pio2(double x, double *y)
 	if (ix < 0x413921fb) {  /* |x| ~< 2^20*(pi/2), medium size */
 medium:
 		/* rint(x/(pi/2)), Assume round-to-nearest. */
-		fn = x*invpio2 + toint - toint;
+		fn = (double_t)x*invpio2 + toint - toint;
 		n = (int32_t)fn;
 		r = x - fn*pio2_1;
 		w = fn*pio2_1t;  /* 1st round, good to 85 bits */
--- a/src/math/__rem_pio2f.c
+++ b/src/math/__rem_pio2f.c
@@ -51,7 +51,7 @@ int __rem_pio2f(float x, double *y)
 	/* 25+53 bit pi is good enough for medium size */
 	if (ix < 0x4dc90fdb) {  /* |x| ~< 2^28*(pi/2), medium size */
 		/* Use a specialized rint() to get fn.  Assume round-to-nearest. */
-		fn = x*invpio2 + toint - toint;
+		fn = (double_t)x*invpio2 + toint - toint;
 		n  = (int32_t)fn;
 		*y = x - fn*pio2_1 - fn*pio2_1t;
 		return n;
--- /dev/null
+++ b/src/math/arm/fabs.c
@@ -0,0 +1,15 @@
+#include <math.h>
+
+#if __ARM_PCS_VFP
+
+double fabs(double x)
+{
+	__asm__ ("vabs.f64 %P0, %P1" : "=w"(x) : "w"(x));
+	return x;
+}
+
+#else
+
+#include "../fabs.c"
+
+#endif
--- /dev/null
+++ b/src/math/arm/fabsf.c
@@ -0,0 +1,15 @@
+#include <math.h>
+
+#if __ARM_PCS_VFP
+
+float fabsf(float x)
+{
+	__asm__ ("vabs.f32 %0, %1" : "=t"(x) : "t"(x));
+	return x;
+}
+
+#else
+
+#include "../fabsf.c"
+
+#endif
--- /dev/null
+++ b/src/math/arm/sqrt.c
@@ -0,0 +1,15 @@
+#include <math.h>
+
+#if __VFP_FP__ && !__SOFTFP__
+
+double sqrt(double x)
+{
+	__asm__ ("vsqrt.f64 %P0, %P1" : "=w"(x) : "w"(x));
+	return x;
+}
+
+#else
+
+#include "../sqrt.c"
+
+#endif
--- /dev/null
+++ b/src/math/arm/sqrtf.c
@@ -0,0 +1,15 @@
+#include <math.h>
+
+#if __VFP_FP__ && !__SOFTFP__
+
+float sqrtf(float x)
+{
+	__asm__ ("vsqrt.f32 %0, %1" : "=t"(x) : "t"(x));
+	return x;
+}
+
+#else
+
+#include "../sqrtf.c"
+
+#endif
--- a/src/math/armebhf/fabs.sub
+++ /dev/null
@@ -1 +0,0 @@
-../armhf/fabs.s
--- a/src/math/armebhf/fabsf.sub
+++ /dev/null
@@ -1 +0,0 @@
-../armhf/fabsf.s
--- a/src/math/armebhf/sqrt.sub
+++ /dev/null
@@ -1 +0,0 @@
-../armhf/sqrt.s
--- a/src/math/armebhf/sqrtf.sub
+++ /dev/null
@@ -1 +0,0 @@
-../armhf/sqrtf.s
--- a/src/math/armhf/fabs.s
+++ /dev/null
@@ -1,7 +0,0 @@
-.fpu vfp
-.text
-.global fabs
-.type   fabs,%function
-fabs:
-	vabs.f64 d0, d0
-	bx lr
--- a/src/math/armhf/fabs.sub
+++ /dev/null
@@ -1 +0,0 @@
-fabs.s
--- a/src/math/armhf/fabsf.s
+++ /dev/null
@@ -1,7 +0,0 @@
-.fpu vfp
-.text
-.global fabsf
-.type   fabsf,%function
-fabsf:
-	vabs.f32 s0, s0
-	bx lr
--- a/src/math/armhf/fabsf.sub
+++ /dev/null
@@ -1 +0,0 @@
-fabsf.s
--- a/src/math/armhf/sqrt.s
+++ /dev/null
@@ -1,7 +0,0 @@
-.fpu vfp
-.text
-.global sqrt
-.type   sqrt,%function
-sqrt:
-	vsqrt.f64 d0, d0
-	bx lr
--- a/src/math/armhf/sqrt.sub
+++ /dev/null
@@ -1 +0,0 @@
-sqrt.s
--- a/src/math/armhf/sqrtf.s
+++ /dev/null
@@ -1,7 +0,0 @@
-.fpu vfp
-.text
-.global sqrtf
-.type   sqrtf,%function
-sqrtf:
-	vsqrt.f32 s0, s0
-	bx lr
--- a/src/math/armhf/sqrtf.sub
+++ /dev/null
@@ -1 +0,0 @@
-sqrtf.s
--- a/src/math/hypot.c
+++ b/src/math/hypot.c
@@ -12,10 +12,10 @@ static void sq(double_t *hi, double_t *l
 {
 	double_t xh, xl, xc;
 
-	xc = x*SPLIT;
+	xc = (double_t)x*SPLIT;
 	xh = x - xc + xc;
 	xl = x - xh;
-	*hi = x*x;
+	*hi = (double_t)x*x;
 	*lo = xh*xh - *hi + 2*xh*xl + xl*xl;
 }
 
--- a/src/mman/mremap.c
+++ b/src/mman/mremap.c
@@ -1,17 +1,31 @@
+#define _GNU_SOURCE
 #include <unistd.h>
 #include <sys/mman.h>
+#include <errno.h>
+#include <stdint.h>
 #include <stdarg.h>
 #include "syscall.h"
 #include "libc.h"
 
+static void dummy(void) { }
+weak_alias(dummy, __vm_wait);
+
 void *__mremap(void *old_addr, size_t old_len, size_t new_len, int flags, ...)
 {
 	va_list ap;
-	void *new_addr;
-	
-	va_start(ap, flags);
-	new_addr = va_arg(ap, void *);
-	va_end(ap);
+	void *new_addr = 0;
+
+	if (new_len >= PTRDIFF_MAX) {
+		errno = ENOMEM;
+		return MAP_FAILED;
+	}
+
+	if (flags & MREMAP_FIXED) {
+		__vm_wait();
+		va_start(ap, flags);
+		new_addr = va_arg(ap, void *);
+		va_end(ap);
+	}
 
 	return (void *)syscall(SYS_mremap, old_addr, old_len, new_len, flags, new_addr);
 }
--- a/src/network/getifaddrs.c
+++ b/src/network/getifaddrs.c
@@ -162,13 +162,26 @@ static int netlink_msg_to_ifaddr(void *p
 		for (rta = NLMSG_RTA(h, sizeof(*ifa)); NLMSG_RTAOK(rta, h); rta = RTA_NEXT(rta)) {
 			switch (rta->rta_type) {
 			case IFA_ADDRESS:
-				copy_addr(&ifs->ifa.ifa_addr, ifa->ifa_family, &ifs->addr, RTA_DATA(rta), RTA_DATALEN(rta), ifa->ifa_index);
+				/* If ifa_addr is already set we, received an IFA_LOCAL before
+				 * so treat this as destination address */
+				if (ifs->ifa.ifa_addr)
+					copy_addr(&ifs->ifa.ifa_dstaddr, ifa->ifa_family, &ifs->ifu, RTA_DATA(rta), RTA_DATALEN(rta), ifa->ifa_index);
+				else
+					copy_addr(&ifs->ifa.ifa_addr, ifa->ifa_family, &ifs->addr, RTA_DATA(rta), RTA_DATALEN(rta), ifa->ifa_index);
 				break;
 			case IFA_BROADCAST:
-				/* For point-to-point links this is peer, but ifa_broadaddr
-				 * and ifa_dstaddr are union, so this works for both.  */
 				copy_addr(&ifs->ifa.ifa_broadaddr, ifa->ifa_family, &ifs->ifu, RTA_DATA(rta), RTA_DATALEN(rta), ifa->ifa_index);
 				break;
+			case IFA_LOCAL:
+				/* If ifa_addr is set and we get IFA_LOCAL, assume we have
+				 * a point-to-point network. Move address to correct field. */
+				if (ifs->ifa.ifa_addr) {
+					ifs->ifu = ifs->addr;
+					ifs->ifa.ifa_dstaddr = &ifs->ifu.sa;
+					memset(&ifs->addr, 0, sizeof(ifs->addr));
+				}
+				copy_addr(&ifs->ifa.ifa_addr, ifa->ifa_family, &ifs->addr, RTA_DATA(rta), RTA_DATALEN(rta), ifa->ifa_index);
+				break;
 			case IFA_LABEL:
 				if (RTA_DATALEN(rta) < sizeof(ifs->name)) {
 					memcpy(ifs->name, RTA_DATA(rta), RTA_DATALEN(rta));
--- a/src/network/getnameinfo.c
+++ b/src/network/getnameinfo.c
@@ -135,13 +135,13 @@ int getnameinfo(const struct sockaddr *r
 	switch (af) {
 	case AF_INET:
 		a = (void *)&((struct sockaddr_in *)sa)->sin_addr;
-		if (sl != sizeof(struct sockaddr_in)) return EAI_FAMILY;
+		if (sl < sizeof(struct sockaddr_in)) return EAI_FAMILY;
 		mkptr4(ptr, a);
 		scopeid = 0;
 		break;
 	case AF_INET6:
 		a = (void *)&((struct sockaddr_in6 *)sa)->sin6_addr;
-		if (sl != sizeof(struct sockaddr_in6)) return EAI_FAMILY;
+		if (sl < sizeof(struct sockaddr_in6)) return EAI_FAMILY;
 		if (memcmp(a, "\0\0\0\0\0\0\0\0\0\0\xff\xff", 12))
 			mkptr6(ptr, a);
 		else
--- a/src/network/if_nametoindex.c
+++ b/src/network/if_nametoindex.c
@@ -10,7 +10,7 @@ unsigned if_nametoindex(const char *name
 	struct ifreq ifr;
 	int fd, r;
 
-	if ((fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0)) < 0) return -1;
+	if ((fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0)) < 0) return 0;
 	strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
 	r = ioctl(fd, SIOCGIFINDEX, &ifr);
 	__syscall(SYS_close, fd);
--- a/src/network/lookup.h
+++ b/src/network/lookup.h
@@ -2,6 +2,7 @@
 #define LOOKUP_H
 
 #include <stdint.h>
+#include <stddef.h>
 
 struct address {
 	int family;
@@ -15,6 +16,14 @@ struct service {
 	unsigned char proto, socktype;
 };
 
+#define MAXNS 3
+
+struct resolvconf {
+	struct address ns[MAXNS];
+	unsigned nns, attempts, ndots;
+	unsigned timeout;
+};
+
 /* The limit of 48 results is a non-sharp bound on the number of addresses
  * that can fit in one 512-byte DNS packet full of v4 results and a second
  * packet full of v6 results. Due to headers, the actual limit is lower. */
@@ -25,4 +34,6 @@ int __lookup_serv(struct service buf[sta
 int __lookup_name(struct address buf[static MAXADDRS], char canon[static 256], const char *name, int family, int flags);
 int __lookup_ipliteral(struct address buf[static 1], const char *name, int family);
 
+int __get_resolv_conf(struct resolvconf *, char *, size_t);
+
 #endif
--- a/src/network/lookup_name.c
+++ b/src/network/lookup_name.c
@@ -9,6 +9,7 @@
 #include <fcntl.h>
 #include <unistd.h>
 #include <pthread.h>
+#include <errno.h>
 #include "lookup.h"
 #include "stdio_impl.h"
 #include "syscall.h"
@@ -51,7 +52,14 @@ static int name_from_hosts(struct addres
 	int cnt = 0;
 	unsigned char _buf[1032];
 	FILE _f, *f = __fopen_rb_ca("/etc/hosts", &_f, _buf, sizeof _buf);
-	if (!f) return 0;
+	if (!f) switch (errno) {
+	case ENOENT:
+	case ENOTDIR:
+	case EACCES:
+		return 0;
+	default:
+		return EAI_SYSTEM;
+	}
 	while (fgets(line, sizeof line, f) && cnt < MAXADDRS) {
 		char *p, *z;
 
@@ -85,7 +93,7 @@ struct dpc_ctx {
 int __dns_parse(const unsigned char *, int, int (*)(void *, int, const void *, int, const void *), void *);
 int __dn_expand(const unsigned char *, const unsigned char *, const unsigned char *, char *, int);
 int __res_mkquery(int, const char *, int, int, const unsigned char *, int, const unsigned char*, unsigned char *, int);
-int __res_msend(int, const unsigned char *const *, const int *, unsigned char *const *, int *, int);
+int __res_msend_rc(int, const unsigned char *const *, const int *, unsigned char *const *, int *, int, const struct resolvconf *);
 
 #define RR_A 1
 #define RR_CNAME 5
@@ -117,7 +125,7 @@ static int dns_parse_callback(void *c, i
 	return 0;
 }
 
-static int name_from_dns(struct address buf[static MAXADDRS], char canon[static 256], const char *name, int family)
+static int name_from_dns(struct address buf[static MAXADDRS], char canon[static 256], const char *name, int family, const struct resolvconf *conf)
 {
 	unsigned char qbuf[2][280], abuf[2][512];
 	const unsigned char *qp[2] = { qbuf[0], qbuf[1] };
@@ -137,17 +145,59 @@ static int name_from_dns(struct address
 		nq++;
 	}
 
-	if (__res_msend(nq, qp, qlens, ap, alens, sizeof *abuf) < 0) return EAI_SYSTEM;
+	if (__res_msend_rc(nq, qp, qlens, ap, alens, sizeof *abuf, conf) < 0)
+		return EAI_SYSTEM;
 
 	for (i=0; i<nq; i++)
 		__dns_parse(abuf[i], alens[i], dns_parse_callback, &ctx);
 
 	if (ctx.cnt) return ctx.cnt;
 	if (alens[0] < 4 || (abuf[0][3] & 15) == 2) return EAI_AGAIN;
-	if ((abuf[0][3] & 15) == 3) return EAI_NONAME;
+	if ((abuf[0][3] & 15) == 0) return EAI_NONAME;
+	if ((abuf[0][3] & 15) == 3) return 0;
 	return EAI_FAIL;
 }
 
+static int name_from_dns_search(struct address buf[static MAXADDRS], char canon[static 256], const char *name, int family)
+{
+	char search[256];
+	struct resolvconf conf;
+	size_t l, dots;
+	char *p, *z;
+
+	if (__get_resolv_conf(&conf, search, sizeof search) < 0) return -1;
+
+	/* Count dots, suppress search when >=ndots or name ends in
+	 * a dot, which is an explicit request for global scope. */
+	for (dots=l=0; name[l]; l++) if (name[l]=='.') dots++;
+	if (dots >= conf.ndots || name[l-1]=='.') *search = 0;
+
+	/* This can never happen; the caller already checked length. */
+	if (l >= 256) return EAI_NONAME;
+
+	/* Name with search domain appended is setup in canon[]. This both
+	 * provides the desired default canonical name (if the requested
+	 * name is not a CNAME record) and serves as a buffer for passing
+	 * the full requested name to name_from_dns. */
+	memcpy(canon, name, l);
+	canon[l] = '.';
+
+	for (p=search; *p; p=z) {
+		for (; isspace(*p); p++);
+		for (z=p; *z && !isspace(*z); z++);
+		if (z==p) break;
+		if (z-p < 256 - l - 1) {
+			memcpy(canon+l+1, p, z-p);
+			canon[z-p+1+l] = 0;
+			int cnt = name_from_dns(buf, canon, canon, family, &conf);
+			if (cnt) return cnt;
+		}
+	}
+
+	canon[l] = 0;
+	return name_from_dns(buf, canon, name, family, &conf);
+}
+
 static const struct policy {
 	unsigned char addr[16];
 	unsigned char len, mask;
@@ -248,7 +298,7 @@ int __lookup_name(struct address buf[sta
 	if (!cnt) cnt = name_from_numeric(buf, name, family);
 	if (!cnt && !(flags & AI_NUMERICHOST)) {
 		cnt = name_from_hosts(buf, canon, name, family);
-		if (!cnt) cnt = name_from_dns(buf, canon, name, family);
+		if (!cnt) cnt = name_from_dns_search(buf, canon, name, family);
 	}
 	if (cnt<=0) return cnt ? cnt : EAI_NONAME;
 
--- a/src/network/lookup_serv.c
+++ b/src/network/lookup_serv.c
@@ -4,6 +4,7 @@
 #include <ctype.h>
 #include <string.h>
 #include <fcntl.h>
+#include <errno.h>
 #include "lookup.h"
 #include "stdio_impl.h"
 
@@ -69,7 +70,14 @@ int __lookup_serv(struct service buf[sta
 
 	unsigned char _buf[1032];
 	FILE _f, *f = __fopen_rb_ca("/etc/services", &_f, _buf, sizeof _buf);
-	if (!f) return EAI_SERVICE;
+	if (!f) switch (errno) {
+	case ENOENT:
+	case ENOTDIR:
+	case EACCES:
+		return EAI_SERVICE;
+	default:
+		return EAI_SYSTEM;
+	}
 
 	while (fgets(line, sizeof line, f) && cnt < MAXSERVS) {
 		if ((p=strchr(line, '#'))) *p++='\n', *p=0;
--- a/src/network/proto.c
+++ b/src/network/proto.c
@@ -9,21 +9,36 @@ static const unsigned char protos[] = {
 	"\001icmp\0"
 	"\002igmp\0"
 	"\003ggp\0"
+	"\004ipencap\0"
+	"\005st\0"
 	"\006tcp\0"
+	"\008egp\0"
 	"\014pup\0"
 	"\021udp\0"
-	"\026idp\0"
+	"\024hmp\0"
+	"\026xns-idp\0"
+	"\033rdp\0"
+	"\035iso-tp4\0"
+	"\044xtp\0"
+	"\045ddp\0"
+	"\046idpr-cmtp\0"
 	"\051ipv6\0"
 	"\053ipv6-route\0"
 	"\054ipv6-frag\0"
+	"\055idrp\0"
+	"\056rsvp\0"
 	"\057gre\0"
 	"\062esp\0"
 	"\063ah\0"
+	"\071skip\0"
 	"\072ipv6-icmp\0"
 	"\073ipv6-nonxt\0"
 	"\074ipv6-opts\0"
+	"\111rspf\0"
+	"\121vmtp\0"
 	"\131ospf\0"
 	"\136ipip\0"
+	"\142encap\0"
 	"\147pim\0"
 	"\377raw"
 };
--- a/src/network/res_msend.c
+++ b/src/network/res_msend.c
@@ -27,18 +27,16 @@ static unsigned long mtime()
 		+ ts.tv_nsec / 1000000;
 }
 
-int __res_msend(int nqueries, const unsigned char *const *queries,
-	const int *qlens, unsigned char *const *answers, int *alens, int asize)
+int __res_msend_rc(int nqueries, const unsigned char *const *queries,
+	const int *qlens, unsigned char *const *answers, int *alens, int asize,
+	const struct resolvconf *conf)
 {
 	int fd;
-	FILE *f, _f;
-	unsigned char _buf[256];
-	char line[64], *s, *z;
-	int timeout = 5000, attempts = 2, retry_interval, servfail_retry;
+	int timeout, attempts, retry_interval, servfail_retry;
 	union {
 		struct sockaddr_in sin;
 		struct sockaddr_in6 sin6;
-	} sa = {0}, ns[3] = {{0}};
+	} sa = {0}, ns[MAXNS] = {{0}};
 	socklen_t sl = sizeof sa.sin;
 	int nns = 0;
 	int family = AF_INET;
@@ -48,57 +46,27 @@ int __res_msend(int nqueries, const unsi
 	int cs;
 	struct pollfd pfd;
 	unsigned long t0, t1, t2;
-	struct address iplit;
 
 	pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs);
 
-	/* Get nameservers from resolv.conf, fallback to localhost */
-	f = __fopen_rb_ca("/etc/resolv.conf", &_f, _buf, sizeof _buf);
-	if (f) for (nns=0; nns<3 && fgets(line, sizeof line, f); ) {
-		if (!strncmp(line, "options", 7) && isspace(line[7])) {
-			unsigned long x;
-			char *p, *z;
-			p = strstr(line, "timeout:");
-			if (p && isdigit(p[8])) {
-				p += 8;
-				x = strtoul(p, &z, 10);
-				if (z != p) timeout = x < 30 ? x*1000 : 30000;
-			}
-			p = strstr(line, "attempts:");
-			if (p && isdigit(p[9])) {
-				p += 9;
-				x = strtoul(p, &z, 10);
-				if (z != p) attempts = x < 10 ? x : 10;
-				if (!attempts) attempts = 1;
-			}
-		}
-		if (strncmp(line, "nameserver", 10) || !isspace(line[10]))
-			continue;
-		for (s=line+11; isspace(*s); s++);
-		for (z=s; *z && !isspace(*z); z++);
-		*z=0;
+	timeout = 1000*conf->timeout;
+	attempts = conf->attempts;
 
-		if (__lookup_ipliteral(&iplit, s, AF_UNSPEC)>0) {
-			if (iplit.family == AF_INET) {
-				memcpy(&ns[nns].sin.sin_addr, iplit.addr, 4);
-				ns[nns].sin.sin_port = htons(53);
-				ns[nns++].sin.sin_family = AF_INET;
-			} else {
-				sl = sizeof sa.sin6;
-				memcpy(&ns[nns].sin6.sin6_addr, iplit.addr, 16);
-				ns[nns].sin6.sin6_port = htons(53);
-				ns[nns].sin6.sin6_scope_id = iplit.scopeid;
-				ns[nns++].sin6.sin6_family = family = AF_INET6;
-			}
+	nns = conf->nns;
+	for (nns=0; nns<conf->nns; nns++) {
+		const struct address *iplit = &conf->ns[nns];
+		if (iplit->family == AF_INET) {
+			memcpy(&ns[nns].sin.sin_addr, iplit->addr, 4);
+			ns[nns].sin.sin_port = htons(53);
+			ns[nns].sin.sin_family = AF_INET;
+		} else {
+			sl = sizeof sa.sin6;
+			memcpy(&ns[nns].sin6.sin6_addr, iplit->addr, 16);
+			ns[nns].sin6.sin6_port = htons(53);
+			ns[nns].sin6.sin6_scope_id = iplit->scopeid;
+			ns[nns].sin6.sin6_family = family = AF_INET6;
 		}
 	}
-	if (f) __fclose_ca(f);
-	if (!nns) {
-		ns[0].sin.sin_family = AF_INET;
-		ns[0].sin.sin_port = htons(53);
-		ns[0].sin.sin_addr.s_addr = htonl(0x7f000001);
-		nns=1;
-	}
 
 	/* Get local address and open/bind a socket */
 	sa.sin.sin_family = family;
@@ -207,3 +175,11 @@ out:
 
 	return 0;
 }
+
+int __res_msend(int nqueries, const unsigned char *const *queries,
+	const int *qlens, unsigned char *const *answers, int *alens, int asize)
+{
+	struct resolvconf conf;
+	if (__get_resolv_conf(&conf, 0, 0) < 0) return -1;
+	return __res_msend_rc(nqueries, queries, qlens, answers, alens, asize, &conf);
+}
--- /dev/null
+++ b/src/network/resolvconf.c
@@ -0,0 +1,93 @@
+#include "lookup.h"
+#include "stdio_impl.h"
+#include <ctype.h>
+#include <errno.h>
+#include <string.h>
+#include <netinet/in.h>
+
+int __get_resolv_conf(struct resolvconf *conf, char *search, size_t search_sz)
+{
+	char line[256];
+	unsigned char _buf[256];
+	FILE *f, _f;
+	int nns = 0;
+
+	conf->ndots = 1;
+	conf->timeout = 5;
+	conf->attempts = 2;
+	if (search) *search = 0;
+
+	f = __fopen_rb_ca("/etc/resolv.conf", &_f, _buf, sizeof _buf);
+	if (!f) switch (errno) {
+	case ENOENT:
+	case ENOTDIR:
+	case EACCES:
+		goto no_resolv_conf;
+	default:
+		return -1;
+	}
+
+	while (fgets(line, sizeof line, f)) {
+		char *p, *z;
+		if (!strchr(line, '\n') && !feof(f)) {
+			/* Ignore lines that get truncated rather than
+			 * potentially misinterpreting them. */
+			int c;
+			do c = getc(f);
+			while (c != '\n' && c != EOF);
+			continue;
+		}
+		if (!strncmp(line, "options", 7) && isspace(line[7])) {
+			p = strstr(line, "ndots:");
+			if (p && isdigit(p[6])) {
+				p += 6;
+				unsigned long x = strtoul(p, &z, 10);
+				if (z != p) conf->ndots = x > 15 ? 15 : x;
+			}
+			p = strstr(line, "attempts:");
+			if (p && isdigit(p[6])) {
+				p += 6;
+				unsigned long x = strtoul(p, &z, 10);
+				if (z != p) conf->attempts = x > 10 ? 10 : x;
+			}
+			p = strstr(line, "timeout:");
+			if (p && (isdigit(p[8]) || p[8]=='.')) {
+				p += 8;
+				unsigned long x = strtoul(p, &z, 10);
+				if (z != p) conf->timeout = x > 60 ? 60 : x;
+			}
+			continue;
+		}
+		if (!strncmp(line, "nameserver", 10) && isspace(line[10])) {
+			if (nns >= MAXNS) continue;
+			for (p=line+11; isspace(*p); p++);
+			for (z=p; *z && !isspace(*z); z++);
+			*z=0;
+			if (__lookup_ipliteral(conf->ns+nns, p, AF_UNSPEC) > 0)
+				nns++;
+			continue;
+		}
+
+		if (!search) continue;
+		if ((strncmp(line, "domain", 6) && strncmp(line, "search", 6))
+		    || !isspace(line[6]))
+			continue;
+		for (p=line+7; isspace(*p); p++);
+		size_t l = strlen(p);
+		/* This can never happen anyway with chosen buffer sizes. */
+		if (l >= search_sz) continue;
+		memcpy(search, p, l+1);
+	}
+
+	__fclose_ca(f);
+
+no_resolv_conf:
+	if (!nns) {
+		__lookup_ipliteral(conf->ns, "127.0.0.1", AF_UNSPEC);
+		nns = 1;
+	}
+
+	conf->nns = nns;
+
+	return 0;
+}
--- a/src/search/tsearch_avl.c
+++ b/src/search/tsearch_avl.c
@@ -77,38 +77,45 @@ static struct node *find(struct node *n,
 		return find(n->right, k, cmp);
 }
 
-static struct node *insert(struct node **n, const void *k,
-	int (*cmp)(const void *, const void *), int *new)
+static struct node *insert(struct node *n, const void *k,
+	int (*cmp)(const void *, const void *), struct node **found)
 {
-	struct node *r = *n;
+	struct node *r;
 	int c;
 
-	if (!r) {
-		*n = r = malloc(sizeof **n);
-		if (r) {
-			r->key = k;
-			r->left = r->right = 0;
-			r->height = 1;
+	if (!n) {
+		n = malloc(sizeof *n);
+		if (n) {
+			n->key = k;
+			n->left = n->right = 0;
+			n->height = 1;
 		}
-		*new = 1;
-		return r;
+		*found = n;
+		return n;
+	}
+	c = cmp(k, n->key);
+	if (c == 0) {
+		*found = n;
+		return 0;
+	}
+	r = insert(c < 0 ? n->left : n->right, k, cmp, found);
+	if (r) {
+		if (c < 0)
+			n->left = r;
+		else
+			n->right = r;
+		r = balance(n);
 	}
-	c = cmp(k, r->key);
-	if (c == 0)
-		return r;
-	if (c < 0)
-		r = insert(&r->left, k, cmp, new);
-	else
-		r = insert(&r->right, k, cmp, new);
-	if (*new)
-		*n = balance(*n);
 	return r;
 }
 
-static struct node *movr(struct node *n, struct node *r) {
-	if (!n)
-		return r;
-	n->right = movr(n->right, r);
+static struct node *remove_rightmost(struct node *n, struct node **rightmost)
+{
+	if (!n->right) {
+		*rightmost = n;
+		return n->left;
+	}
+	n->right = remove_rightmost(n->right, rightmost);
 	return balance(n);
 }
 
@@ -122,7 +129,13 @@ static struct node *remove(struct node *
 	c = cmp(k, (*n)->key);
 	if (c == 0) {
 		struct node *r = *n;
-		*n = movr(r->left, r->right);
+		if (r->left) {
+			r->left = remove_rightmost(r->left, n);
+			(*n)->left = r->left;
+			(*n)->right = r->right;
+			*n = balance(*n);
+		} else
+			*n = r->right;
 		free(r);
 		return parent;
 	}
@@ -138,6 +151,8 @@ static struct node *remove(struct node *
 void *tdelete(const void *restrict key, void **restrict rootp,
 	int(*compar)(const void *, const void *))
 {
+	if (!rootp)
+		return 0;
 	struct node *n = *rootp;
 	struct node *ret;
 	/* last argument is arbitrary non-null pointer
@@ -150,17 +165,21 @@ void *tdelete(const void *restrict key,
 void *tfind(const void *key, void *const *rootp,
 	int(*compar)(const void *, const void *))
 {
+	if (!rootp)
+		return 0;
 	return find(*rootp, key, compar);
 }
 
 void *tsearch(const void *key, void **rootp,
 	int (*compar)(const void *, const void *))
 {
-	int new = 0;
-	struct node *n = *rootp;
+	struct node *update;
 	struct node *ret;
-	ret = insert(&n, key, compar, &new);
-	*rootp = n;
+	if (!rootp)
+		return 0;
+	update = insert(*rootp, key, compar, &ret);
+	if (update)
+		*rootp = update;
 	return ret;
 }
 
--- a/src/setjmp/arm/longjmp.s
+++ b/src/setjmp/arm/longjmp.s
@@ -1,3 +1,4 @@
+.syntax unified
 .global _longjmp
 .global longjmp
 .type _longjmp,%function
@@ -20,7 +21,11 @@ longjmp:
 	ldc p2, cr4, [ip], #48
 2:	tst r1,#0x40
 	beq 2f
-	.word 0xecbc8b10 /* vldmia ip!, {d8-d15} */
+	.fpu vfp
+	vldmia ip!, {d8-d15}
+	.fpu softvfp
+	.eabi_attribute 10, 0
+	.eabi_attribute 27, 0
 2:	tst r1,#0x200
 	beq 3f
 	ldcl p1, cr10, [ip], #8
@@ -29,9 +34,7 @@ longjmp:
 	ldcl p1, cr13, [ip], #8
 	ldcl p1, cr14, [ip], #8
 	ldcl p1, cr15, [ip], #8
-3:	tst lr,#1
-	moveq pc,lr
-	bx lr
+3:	bx lr
 
 .hidden __hwcap
 1:	.word __hwcap-1b
--- a/src/setjmp/arm/setjmp.s
+++ b/src/setjmp/arm/setjmp.s
@@ -1,3 +1,4 @@
+.syntax unified
 .global __setjmp
 .global _setjmp
 .global setjmp
@@ -22,7 +23,11 @@ setjmp:
 	stc p2, cr4, [ip], #48
 2:	tst r1,#0x40
 	beq 2f
-	.word 0xecac8b10 /* vstmia ip!, {d8-d15} */
+	.fpu vfp
+	vstmia ip!, {d8-d15}
+	.fpu softvfp
+	.eabi_attribute 10, 0
+	.eabi_attribute 27, 0
 2:	tst r1,#0x200
 	beq 3f
 	stcl p1, cr10, [ip], #8
@@ -31,9 +36,7 @@ setjmp:
 	stcl p1, cr13, [ip], #8
 	stcl p1, cr14, [ip], #8
 	stcl p1, cr15, [ip], #8
-3:	tst lr,#1
-	moveq pc,lr
-	bx lr
+3:	bx lr
 
 .hidden __hwcap
 1:	.word __hwcap-1b
--- a/src/setjmp/mips-sf/longjmp.s
+++ /dev/null
@@ -1,25 +0,0 @@
-.set noreorder
-
-.global _longjmp
-.global longjmp
-.type   _longjmp,@function
-.type   longjmp,@function
-_longjmp:
-longjmp:
-	move    $2, $5
-	bne     $2, $0, 1f
-	nop
-	addu    $2, $2, 1
-1:	lw      $ra,  0($4)
-	lw      $sp,  4($4)
-	lw      $16,  8($4)
-	lw      $17, 12($4)
-	lw      $18, 16($4)
-	lw      $19, 20($4)
-	lw      $20, 24($4)
-	lw      $21, 28($4)
-	lw      $22, 32($4)
-	lw      $23, 36($4)
-	lw      $30, 40($4)
-	jr      $ra
-	lw      $28, 44($4)
--- a/src/setjmp/mips-sf/longjmp.sub
+++ /dev/null
@@ -1 +0,0 @@
-longjmp.s
--- a/src/setjmp/mips-sf/setjmp.s
+++ /dev/null
@@ -1,25 +0,0 @@
-.set noreorder
-
-.global __setjmp
-.global _setjmp
-.global setjmp
-.type   __setjmp,@function
-.type   _setjmp,@function
-.type   setjmp,@function
-__setjmp:
-_setjmp:
-setjmp:
-	sw      $ra,  0($4)
-	sw      $sp,  4($4)
-	sw      $16,  8($4)
-	sw      $17, 12($4)
-	sw      $18, 16($4)
-	sw      $19, 20($4)
-	sw      $20, 24($4)
-	sw      $21, 28($4)
-	sw      $22, 32($4)
-	sw      $23, 36($4)
-	sw      $30, 40($4)
-	sw      $28, 44($4)
-	jr      $ra
-	li      $2, 0
--- a/src/setjmp/mips-sf/setjmp.sub
+++ /dev/null
@@ -1 +0,0 @@
-setjmp.s
--- /dev/null
+++ b/src/setjmp/mips/longjmp.S
@@ -0,0 +1,40 @@
+.set noreorder
+
+.global _longjmp
+.global longjmp
+.type   _longjmp,@function
+.type   longjmp,@function
+_longjmp:
+longjmp:
+	move    $2, $5
+	bne     $2, $0, 1f
+	nop
+	addu    $2, $2, 1
+1:
+#ifndef __mips_soft_float
+	lwc1    $20, 56($4)
+	lwc1    $21, 60($4)
+	lwc1    $22, 64($4)
+	lwc1    $23, 68($4)
+	lwc1    $24, 72($4)
+	lwc1    $25, 76($4)
+	lwc1    $26, 80($4)
+	lwc1    $27, 84($4)
+	lwc1    $28, 88($4)
+	lwc1    $29, 92($4)
+	lwc1    $30, 96($4)
+	lwc1    $31, 100($4)
+#endif
+	lw      $ra,  0($4)
+	lw      $sp,  4($4)
+	lw      $16,  8($4)
+	lw      $17, 12($4)
+	lw      $18, 16($4)
+	lw      $19, 20($4)
+	lw      $20, 24($4)
+	lw      $21, 28($4)
+	lw      $22, 32($4)
+	lw      $23, 36($4)
+	lw      $30, 40($4)
+	jr      $ra
+	lw      $28, 44($4)
--- a/src/setjmp/mips/longjmp.s
+++ /dev/null
@@ -1,37 +0,0 @@
-.set noreorder
-
-.global _longjmp
-.global longjmp
-.type   _longjmp,@function
-.type   longjmp,@function
-_longjmp:
-longjmp:
-	move    $2, $5
-	bne     $2, $0, 1f
-	nop
-	addu    $2, $2, 1
-1:	lwc1    $20, 56($4)
-	lwc1    $21, 60($4)
-	lwc1    $22, 64($4)
-	lwc1    $23, 68($4)
-	lwc1    $24, 72($4)
-	lwc1    $25, 76($4)
-	lwc1    $26, 80($4)
-	lwc1    $27, 84($4)
-	lwc1    $28, 88($4)
-	lwc1    $29, 92($4)
-	lwc1    $30, 96($4)
-	lwc1    $31, 100($4)
-	lw      $ra,  0($4)
-	lw      $sp,  4($4)
-	lw      $16,  8($4)
-	lw      $17, 12($4)
-	lw      $18, 16($4)
-	lw      $19, 20($4)
-	lw      $20, 24($4)
-	lw      $21, 28($4)
-	lw      $22, 32($4)
-	lw      $23, 36($4)
-	lw      $30, 40($4)
-	jr      $ra
-	lw      $28, 44($4)
--- /dev/null
+++ b/src/setjmp/mips/setjmp.S
@@ -0,0 +1,39 @@
+.set noreorder
+
+.global __setjmp
+.global _setjmp
+.global setjmp
+.type   __setjmp,@function
+.type   _setjmp,@function
+.type   setjmp,@function
+__setjmp:
+_setjmp:
+setjmp:
+	sw      $ra,  0($4)
+	sw      $sp,  4($4)
+	sw      $16,  8($4)
+	sw      $17, 12($4)
+	sw      $18, 16($4)
+	sw      $19, 20($4)
+	sw      $20, 24($4)
+	sw      $21, 28($4)
+	sw      $22, 32($4)
+	sw      $23, 36($4)
+	sw      $30, 40($4)
+	sw      $28, 44($4)
+#ifndef __mips_soft_float
+	swc1    $20, 56($4)
+	swc1    $21, 60($4)
+	swc1    $22, 64($4)
+	swc1    $23, 68($4)
+	swc1    $24, 72($4)
+	swc1    $25, 76($4)
+	swc1    $26, 80($4)
+	swc1    $27, 84($4)
+	swc1    $28, 88($4)
+	swc1    $29, 92($4)
+	swc1    $30, 96($4)
+	swc1    $31, 100($4)
+#endif
+	jr      $ra
+	li      $2, 0
--- a/src/setjmp/mips/setjmp.s
+++ /dev/null
@@ -1,37 +0,0 @@
-.set noreorder
-
-.global __setjmp
-.global _setjmp
-.global setjmp
-.type   __setjmp,@function
-.type   _setjmp,@function
-.type   setjmp,@function
-__setjmp:
-_setjmp:
-setjmp:
-	sw      $ra,  0($4)
-	sw      $sp,  4($4)
-	sw      $16,  8($4)
-	sw      $17, 12($4)
-	sw      $18, 16($4)
-	sw      $19, 20($4)
-	sw      $20, 24($4)
-	sw      $21, 28($4)
-	sw      $22, 32($4)
-	sw      $23, 36($4)
-	sw      $30, 40($4)
-	sw      $28, 44($4)
-	swc1    $20, 56($4)
-	swc1    $21, 60($4)
-	swc1    $22, 64($4)
-	swc1    $23, 68($4)
-	swc1    $24, 72($4)
-	swc1    $25, 76($4)
-	swc1    $26, 80($4)
-	swc1    $27, 84($4)
-	swc1    $28, 88($4)
-	swc1    $29, 92($4)
-	swc1    $30, 96($4)
-	swc1    $31, 100($4)
-	jr      $ra
-	li      $2, 0
--- a/src/setjmp/mipsel-sf/longjmp.sub
+++ /dev/null
@@ -1 +0,0 @@
-../mips-sf/longjmp.s
--- a/src/setjmp/mipsel-sf/setjmp.sub
+++ /dev/null
@@ -1 +0,0 @@
-../mips-sf/setjmp.s
--- a/src/setjmp/sh-nofpu/longjmp.s
+++ /dev/null
@@ -1,22 +0,0 @@
-.global _longjmp
-.global longjmp
-.type   _longjmp, @function
-.type   longjmp,  @function
-_longjmp:
-longjmp:
-	mov.l  @r4+, r8
-	mov.l  @r4+, r9
-	mov.l  @r4+, r10
-	mov.l  @r4+, r11
-	mov.l  @r4+, r12
-	mov.l  @r4+, r13
-	mov.l  @r4+, r14
-	mov.l  @r4+, r15
-	lds.l  @r4+, pr
-
-	tst  r5, r5
-	movt r0
-	add  r5, r0
-
-	rts
-	 nop
--- a/src/setjmp/sh-nofpu/longjmp.sub
+++ /dev/null
@@ -1 +0,0 @@
-longjmp.s
--- a/src/setjmp/sh-nofpu/setjmp.s
+++ /dev/null
@@ -1,24 +0,0 @@
-.global ___setjmp
-.hidden ___setjmp
-.global __setjmp
-.global _setjmp
-.global setjmp
-.type   __setjmp, @function
-.type   _setjmp,  @function
-.type   setjmp,   @function
-___setjmp:
-__setjmp:
-_setjmp:
-setjmp:
-	add   #36, r4
-	sts.l  pr,   @-r4
-	mov.l  r15   @-r4
-	mov.l  r14,  @-r4
-	mov.l  r13,  @-r4
-	mov.l  r12,  @-r4
-	mov.l  r11,  @-r4
-	mov.l  r10,  @-r4
-	mov.l  r9,   @-r4
-	mov.l  r8,   @-r4
-	rts
-	 mov  #0, r0
--- a/src/setjmp/sh-nofpu/setjmp.sub
+++ /dev/null
@@ -1 +0,0 @@
-setjmp.s
--- /dev/null
+++ b/src/setjmp/sh/longjmp.S
@@ -0,0 +1,28 @@
+.global _longjmp
+.global longjmp
+.type   _longjmp, @function
+.type   longjmp,  @function
+_longjmp:
+longjmp:
+	mov.l  @r4+, r8
+	mov.l  @r4+, r9
+	mov.l  @r4+, r10
+	mov.l  @r4+, r11
+	mov.l  @r4+, r12
+	mov.l  @r4+, r13
+	mov.l  @r4+, r14
+	mov.l  @r4+, r15
+	lds.l  @r4+, pr
+#if __SH_FPU_ANY__ || __SH4__
+	fmov.s @r4+, fr12
+	fmov.s @r4+, fr13
+	fmov.s @r4+, fr14
+	fmov.s @r4+, fr15
+#endif
+
+	tst  r5, r5
+	movt r0
+	add  r5, r0
+
+	rts
+	 nop
--- a/src/setjmp/sh/longjmp.s
+++ /dev/null
@@ -1,26 +0,0 @@
-.global _longjmp
-.global longjmp
-.type   _longjmp, @function
-.type   longjmp,  @function
-_longjmp:
-longjmp:
-	mov.l  @r4+, r8
-	mov.l  @r4+, r9
-	mov.l  @r4+, r10
-	mov.l  @r4+, r11
-	mov.l  @r4+, r12
-	mov.l  @r4+, r13
-	mov.l  @r4+, r14
-	mov.l  @r4+, r15
-	lds.l  @r4+, pr
-	fmov.s @r4+, fr12
-	fmov.s @r4+, fr13
-	fmov.s @r4+, fr14
-	fmov.s @r4+, fr15
-
-	tst  r5, r5
-	movt r0
-	add  r5, r0
-
-	rts
-	 nop
--- /dev/null
+++ b/src/setjmp/sh/setjmp.S
@@ -0,0 +1,32 @@
+.global ___setjmp
+.hidden ___setjmp
+.global __setjmp
+.global _setjmp
+.global setjmp
+.type   __setjmp, @function
+.type   _setjmp,  @function
+.type   setjmp,   @function
+___setjmp:
+__setjmp:
+_setjmp:
+setjmp:
+#if __SH_FPU_ANY__ || __SH4__
+	add   #52, r4
+	fmov.s fr15, @-r4
+	fmov.s fr14, @-r4
+	fmov.s fr13, @-r4
+	fmov.s fr12, @-r4
+#else
+	add   #36, r4
+#endif
+	sts.l  pr,   @-r4
+	mov.l  r15,  @-r4
+	mov.l  r14,  @-r4
+	mov.l  r13,  @-r4
+	mov.l  r12,  @-r4
+	mov.l  r11,  @-r4
+	mov.l  r10,  @-r4
+	mov.l  r9,   @-r4
+	mov.l  r8,   @-r4
+	rts
+	 mov  #0, r0
--- a/src/setjmp/sh/setjmp.s
+++ /dev/null
@@ -1,28 +0,0 @@
-.global ___setjmp
-.hidden ___setjmp
-.global __setjmp
-.global _setjmp
-.global setjmp
-.type   __setjmp, @function
-.type   _setjmp,  @function
-.type   setjmp,   @function
-___setjmp:
-__setjmp:
-_setjmp:
-setjmp:
-	add   #52, r4
-	fmov.s fr15, @-r4
-	fmov.s fr14, @-r4
-	fmov.s fr13, @-r4
-	fmov.s fr12, @-r4
-	sts.l  pr,   @-r4
-	mov.l  r15,  @-r4
-	mov.l  r14,  @-r4
-	mov.l  r13,  @-r4
-	mov.l  r12,  @-r4
-	mov.l  r11,  @-r4
-	mov.l  r10,  @-r4
-	mov.l  r9,   @-r4
-	mov.l  r8,   @-r4
-	rts
-	 mov  #0, r0
--- a/src/setjmp/sheb-nofpu/longjmp.sub
+++ /dev/null
@@ -1 +0,0 @@
-../sh-nofpu/longjmp.s
--- a/src/setjmp/sheb-nofpu/setjmp.sub
+++ /dev/null
@@ -1 +0,0 @@
-../sh-nofpu/setjmp.s
--- a/src/signal/arm/restore.s
+++ b/src/signal/arm/restore.s
@@ -1,3 +1,5 @@
+.syntax unified
+
 .global __restore
 .type __restore,%function
 __restore:
--- a/src/signal/arm/sigsetjmp.s
+++ b/src/signal/arm/sigsetjmp.s
@@ -1,3 +1,4 @@
+.syntax unified
 .global sigsetjmp
 .global __sigsetjmp
 .type sigsetjmp,%function
--- a/src/signal/sigaction.c
+++ b/src/signal/sigaction.c
@@ -17,10 +17,6 @@ void __get_handler_set(sigset_t *set)
 int __libc_sigaction(int sig, const struct sigaction *restrict sa, struct sigaction *restrict old)
 {
 	struct k_sigaction ksa, ksa_old;
-	if (sig >= (unsigned)_NSIG) {
-		errno = EINVAL;
-		return -1;
-	}
 	if (sa) {
 		if ((uintptr_t)sa->sa_handler > 1UL) {
 			a_or_l(handler_set+(sig-1)/(8*sizeof(long)),
@@ -57,7 +53,7 @@ int __libc_sigaction(int sig, const stru
 
 int __sigaction(int sig, const struct sigaction *restrict sa, struct sigaction *restrict old)
 {
-	if (sig-32U < 3) {
+	if (sig-32U < 3 || sig-1U >= _NSIG-1) {
 		errno = EINVAL;
 		return -1;
 	}
--- a/src/signal/sigsetjmp_tail.c
+++ b/src/signal/sigsetjmp_tail.c
@@ -2,9 +2,7 @@
 #include <signal.h>
 #include "syscall.h"
 
-#ifdef SHARED
 __attribute__((__visibility__("hidden")))
-#endif
 int __sigsetjmp_tail(sigjmp_buf jb, int ret)
 {
 	void *p = jb->__ss;
--- a/src/stdio/getdelim.c
+++ b/src/stdio/getdelim.c
@@ -27,17 +27,18 @@ ssize_t getdelim(char **restrict s, size
 	for (;;) {
 		z = memchr(f->rpos, delim, f->rend - f->rpos);
 		k = z ? z - f->rpos + 1 : f->rend - f->rpos;
-		if (i+k >= *n) {
+		if (i+k+1 >= *n) {
 			if (k >= SIZE_MAX/2-i) goto oom;
-			*n = i+k+2;
-			if (*n < SIZE_MAX/4) *n *= 2;
-			tmp = realloc(*s, *n);
+			size_t m = i+k+2;
+			if (!z && m < SIZE_MAX/4) m += m/2;
+			tmp = realloc(*s, m);
 			if (!tmp) {
-				*n = i+k+2;
-				tmp = realloc(*s, *n);
+				m = i+k+2;
+				tmp = realloc(*s, m);
 				if (!tmp) goto oom;
 			}
 			*s = tmp;
+			*n = m;
 		}
 		memcpy(*s+i, f->rpos, k);
 		f->rpos += k;
--- /dev/null
+++ b/src/string/arm/__aeabi_memclr.c
@@ -0,0 +1,9 @@
+#include <string.h>
+#include "libc.h"
+
+void __aeabi_memclr(void *dest, size_t n)
+{
+	memset(dest, 0, n);
+}
+weak_alias(__aeabi_memclr, __aeabi_memclr4);
+weak_alias(__aeabi_memclr, __aeabi_memclr8);
--- /dev/null
+++ b/src/string/arm/__aeabi_memcpy.c
@@ -0,0 +1,9 @@
+#include <string.h>
+#include "libc.h"
+
+void __aeabi_memcpy(void *restrict dest, const void *restrict src, size_t n)
+{
+	memcpy(dest, src, n);
+}
+weak_alias(__aeabi_memcpy, __aeabi_memcpy4);
+weak_alias(__aeabi_memcpy, __aeabi_memcpy8);
--- /dev/null
+++ b/src/string/arm/__aeabi_memmove.c
@@ -0,0 +1,9 @@
+#include <string.h>
+#include "libc.h"
+
+void __aeabi_memmove(void *dest, const void *src, size_t n)
+{
+	memmove(dest, src, n);
+}
+weak_alias(__aeabi_memmove, __aeabi_memmove4);
+weak_alias(__aeabi_memmove, __aeabi_memmove8);
--- /dev/null
+++ b/src/string/arm/__aeabi_memset.c
@@ -0,0 +1,9 @@
+#include <string.h>
+#include "libc.h"
+
+void __aeabi_memset(void *dest, size_t n, int c)
+{
+	memset(dest, c, n);
+}
+weak_alias(__aeabi_memset, __aeabi_memset4);
+weak_alias(__aeabi_memset, __aeabi_memset8);
--- /dev/null
+++ b/src/string/arm/memcpy.c
@@ -0,0 +1,3 @@
+#if __ARMEB__
+#include "../memcpy.c"
+#endif
--- /dev/null
+++ b/src/string/arm/memcpy_le.S
@@ -0,0 +1,383 @@
+#ifndef __ARMEB__
+
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+
+/*
+ * Optimized memcpy() for ARM.
+ *
+ * note that memcpy() always returns the destination pointer,
+ * so we have to preserve R0.
+  */
+
+/*
+ * This file has been modified from the original for use in musl libc.
+ * The main changes are: addition of .type memcpy,%function to make the
+ * code safely callable from thumb mode, adjusting the return
+ * instructions to be compatible with pre-thumb ARM cpus, and removal
+ * of prefetch code that is not compatible with older cpus.
+ */
+
+.syntax unified
+
+.global memcpy
+.type memcpy,%function
+memcpy:
+	/* The stack must always be 64-bits aligned to be compliant with the
+	 * ARM ABI. Since we have to save R0, we might as well save R4
+	 * which we can use for better pipelining of the reads below
+	 */
+	.fnstart
+	.save       {r0, r4, lr}
+	stmfd       sp!, {r0, r4, lr}
+	/* Making room for r5-r11 which will be spilled later */
+	.pad        #28
+	sub         sp, sp, #28
+
+	/* it simplifies things to take care of len<4 early */
+	cmp     r2, #4
+	blo     copy_last_3_and_return
+
+	/* compute the offset to align the source
+	 * offset = (4-(src&3))&3 = -src & 3
+	 */
+	rsb     r3, r1, #0
+	ands    r3, r3, #3
+	beq     src_aligned
+
+	/* align source to 32 bits. We need to insert 2 instructions between
+	 * a ldr[b|h] and str[b|h] because byte and half-word instructions
+	 * stall 2 cycles.
+	 */
+	movs    r12, r3, lsl #31
+	sub     r2, r2, r3              /* we know that r3 <= r2 because r2 >= 4 */
+	ldrbmi r3, [r1], #1
+	ldrbcs r4, [r1], #1
+	ldrbcs r12,[r1], #1
+	strbmi r3, [r0], #1
+	strbcs r4, [r0], #1
+	strbcs r12,[r0], #1
+
+src_aligned:
+
+	/* see if src and dst are aligned together (congruent) */
+	eor     r12, r0, r1
+	tst     r12, #3
+	bne     non_congruent
+
+	/* Use post-incriment mode for stm to spill r5-r11 to reserved stack
+	 * frame. Don't update sp.
+	 */
+	stmea   sp, {r5-r11}
+
+	/* align the destination to a cache-line */
+	rsb     r3, r0, #0
+	ands    r3, r3, #0x1C
+	beq     congruent_aligned32
+	cmp     r3, r2
+	andhi   r3, r2, #0x1C
+
+	/* conditionnaly copies 0 to 7 words (length in r3) */
+	movs    r12, r3, lsl #28
+	ldmcs   r1!, {r4, r5, r6, r7}           /* 16 bytes */
+	ldmmi   r1!, {r8, r9}                   /*  8 bytes */
+	stmcs   r0!, {r4, r5, r6, r7}
+	stmmi   r0!, {r8, r9}
+	tst     r3, #0x4
+	ldrne   r10,[r1], #4                    /*  4 bytes */
+	strne   r10,[r0], #4
+	sub     r2, r2, r3
+
+congruent_aligned32:
+	/*
+	 * here source is aligned to 32 bytes.
+	 */
+
+cached_aligned32:
+	subs    r2, r2, #32
+	blo     less_than_32_left
+
+	/*
+	 * We preload a cache-line up to 64 bytes ahead. On the 926, this will
+	 * stall only until the requested world is fetched, but the linefill
+	 * continues in the the background.
+	 * While the linefill is going, we write our previous cache-line
+	 * into the write-buffer (which should have some free space).
+	 * When the linefill is done, the writebuffer will
+	 * start dumping its content into memory
+	 *
+	 * While all this is going, we then load a full cache line into
+	 * 8 registers, this cache line should be in the cache by now
+	 * (or partly in the cache).
+	 *
+	 * This code should work well regardless of the source/dest alignment.
+	 *
+	 */
+
+	/* Align the preload register to a cache-line because the cpu does
+	 * "critical word first" (the first word requested is loaded first).
+	 */
+	@ bic           r12, r1, #0x1F
+	@ add           r12, r12, #64
+
+1:      ldmia   r1!, { r4-r11 }
+	subs    r2, r2, #32
+
+	/* 
+	 * NOTE: if r12 is more than 64 ahead of r1, the following ldrhi
+	 * for ARM9 preload will not be safely guarded by the preceding subs.
+	 * When it is safely guarded the only possibility to have SIGSEGV here
+	 * is because the caller overstates the length.
+	 */
+	@ ldrhi         r3, [r12], #32      /* cheap ARM9 preload */
+	stmia   r0!, { r4-r11 }
+	bhs     1b
+
+	add     r2, r2, #32
+
+less_than_32_left:
+	/*
+	 * less than 32 bytes left at this point (length in r2)
+	 */
+
+	/* skip all this if there is nothing to do, which should
+	 * be a common case (if not executed the code below takes
+	 * about 16 cycles)
+	 */
+	tst     r2, #0x1F
+	beq     1f
+
+	/* conditionnaly copies 0 to 31 bytes */
+	movs    r12, r2, lsl #28
+	ldmcs   r1!, {r4, r5, r6, r7}           /* 16 bytes */
+	ldmmi   r1!, {r8, r9}                   /*  8 bytes */
+	stmcs   r0!, {r4, r5, r6, r7}
+	stmmi   r0!, {r8, r9}
+	movs    r12, r2, lsl #30
+	ldrcs   r3, [r1], #4                    /*  4 bytes */
+	ldrhmi r4, [r1], #2                     /*  2 bytes */
+	strcs   r3, [r0], #4
+	strhmi r4, [r0], #2
+	tst     r2, #0x1
+	ldrbne r3, [r1]                         /*  last byte  */
+	strbne r3, [r0]
+
+	/* we're done! restore everything and return */
+1:      ldmfd   sp!, {r5-r11}
+	ldmfd   sp!, {r0, r4, lr}
+	bx      lr
+
+	/********************************************************************/
+
+non_congruent:
+	/*
+	 * here source is aligned to 4 bytes
+	 * but destination is not.
+	 *
+	 * in the code below r2 is the number of bytes read
+	 * (the number of bytes written is always smaller, because we have
+	 * partial words in the shift queue)
+	 */
+	cmp     r2, #4
+	blo     copy_last_3_and_return
+
+	/* Use post-incriment mode for stm to spill r5-r11 to reserved stack
+	 * frame. Don't update sp.
+	 */
+	stmea   sp, {r5-r11}
+
+	/* compute shifts needed to align src to dest */
+	rsb     r5, r0, #0
+	and     r5, r5, #3                      /* r5 = # bytes in partial words */
+	mov     r12, r5, lsl #3         /* r12 = right */
+	rsb     lr, r12, #32            /* lr = left  */
+
+	/* read the first word */
+	ldr     r3, [r1], #4
+	sub     r2, r2, #4
+
+	/* write a partial word (0 to 3 bytes), such that destination
+	 * becomes aligned to 32 bits (r5 = nb of words to copy for alignment)
+	 */
+	movs    r5, r5, lsl #31
+	strbmi r3, [r0], #1
+	movmi   r3, r3, lsr #8
+	strbcs r3, [r0], #1
+	movcs   r3, r3, lsr #8
+	strbcs r3, [r0], #1
+	movcs   r3, r3, lsr #8
+
+	cmp     r2, #4
+	blo     partial_word_tail
+
+	/* Align destination to 32 bytes (cache line boundary) */
+1:      tst     r0, #0x1c
+	beq     2f
+	ldr     r5, [r1], #4
+	sub     r2, r2, #4
+	orr     r4, r3, r5,             lsl lr
+	mov     r3, r5,                 lsr r12
+	str     r4, [r0], #4
+	cmp     r2, #4
+	bhs     1b
+	blo     partial_word_tail
+
+	/* copy 32 bytes at a time */
+2:      subs    r2, r2, #32
+	blo     less_than_thirtytwo
+
+	/* Use immediate mode for the shifts, because there is an extra cycle
+	 * for register shifts, which could account for up to 50% of
+	 * performance hit.
+	 */
+
+	cmp     r12, #24
+	beq     loop24
+	cmp     r12, #8
+	beq     loop8
+
+loop16:
+	ldr     r12, [r1], #4
+1:      mov     r4, r12
+	ldmia   r1!, {   r5,r6,r7,  r8,r9,r10,r11}
+	subs    r2, r2, #32
+	ldrhs   r12, [r1], #4
+	orr     r3, r3, r4, lsl #16
+	mov     r4, r4, lsr #16
+	orr     r4, r4, r5, lsl #16
+	mov     r5, r5, lsr #16
+	orr     r5, r5, r6, lsl #16
+	mov     r6, r6, lsr #16
+	orr     r6, r6, r7, lsl #16
+	mov     r7, r7, lsr #16
+	orr     r7, r7, r8, lsl #16
+	mov     r8, r8, lsr #16
+	orr     r8, r8, r9, lsl #16
+	mov     r9, r9, lsr #16
+	orr     r9, r9, r10, lsl #16
+	mov     r10, r10,               lsr #16
+	orr     r10, r10, r11, lsl #16
+	stmia   r0!, {r3,r4,r5,r6, r7,r8,r9,r10}
+	mov     r3, r11, lsr #16
+	bhs     1b
+	b       less_than_thirtytwo
+
+loop8:
+	ldr     r12, [r1], #4
+1:      mov     r4, r12
+	ldmia   r1!, {   r5,r6,r7,  r8,r9,r10,r11}
+	subs    r2, r2, #32
+	ldrhs   r12, [r1], #4
+	orr     r3, r3, r4, lsl #24
+	mov     r4, r4, lsr #8
+	orr     r4, r4, r5, lsl #24
+	mov     r5, r5, lsr #8
+	orr     r5, r5, r6, lsl #24
+	mov     r6, r6,  lsr #8
+	orr     r6, r6, r7, lsl #24
+	mov     r7, r7,  lsr #8
+	orr     r7, r7, r8,             lsl #24
+	mov     r8, r8,  lsr #8
+	orr     r8, r8, r9,             lsl #24
+	mov     r9, r9,  lsr #8
+	orr     r9, r9, r10,    lsl #24
+	mov     r10, r10, lsr #8
+	orr     r10, r10, r11,  lsl #24
+	stmia   r0!, {r3,r4,r5,r6, r7,r8,r9,r10}
+	mov     r3, r11, lsr #8
+	bhs     1b
+	b       less_than_thirtytwo
+
+loop24:
+	ldr     r12, [r1], #4
+1:      mov     r4, r12
+	ldmia   r1!, {   r5,r6,r7,  r8,r9,r10,r11}
+	subs    r2, r2, #32
+	ldrhs   r12, [r1], #4
+	orr     r3, r3, r4, lsl #8
+	mov     r4, r4, lsr #24
+	orr     r4, r4, r5, lsl #8
+	mov     r5, r5, lsr #24
+	orr     r5, r5, r6, lsl #8
+	mov     r6, r6, lsr #24
+	orr     r6, r6, r7, lsl #8
+	mov     r7, r7, lsr #24
+	orr     r7, r7, r8, lsl #8
+	mov     r8, r8, lsr #24
+	orr     r8, r8, r9, lsl #8
+	mov     r9, r9, lsr #24
+	orr     r9, r9, r10, lsl #8
+	mov     r10, r10, lsr #24
+	orr     r10, r10, r11, lsl #8
+	stmia   r0!, {r3,r4,r5,r6, r7,r8,r9,r10}
+	mov     r3, r11, lsr #24
+	bhs     1b
+
+less_than_thirtytwo:
+	/* copy the last 0 to 31 bytes of the source */
+	rsb     r12, lr, #32            /* we corrupted r12, recompute it  */
+	add     r2, r2, #32
+	cmp     r2, #4
+	blo     partial_word_tail
+
+1:      ldr     r5, [r1], #4
+	sub     r2, r2, #4
+	orr     r4, r3, r5,             lsl lr
+	mov     r3,     r5,                     lsr r12
+	str     r4, [r0], #4
+	cmp     r2, #4
+	bhs     1b
+
+partial_word_tail:
+	/* we have a partial word in the input buffer */
+	movs    r5, lr, lsl #(31-3)
+	strbmi r3, [r0], #1
+	movmi   r3, r3, lsr #8
+	strbcs r3, [r0], #1
+	movcs   r3, r3, lsr #8
+	strbcs r3, [r0], #1
+
+	/* Refill spilled registers from the stack. Don't update sp. */
+	ldmfd   sp, {r5-r11}
+
+copy_last_3_and_return:
+	movs    r2, r2, lsl #31 /* copy remaining 0, 1, 2 or 3 bytes */
+	ldrbmi r2, [r1], #1
+	ldrbcs r3, [r1], #1
+	ldrbcs r12,[r1]
+	strbmi r2, [r0], #1
+	strbcs r3, [r0], #1
+	strbcs r12,[r0]
+
+	/* we're done! restore sp and spilled registers and return */
+	add     sp,  sp, #28
+	ldmfd   sp!, {r0, r4, lr}
+	bx      lr
+
+#endif
--- a/src/string/armel/memcpy.s
+++ /dev/null
@@ -1,381 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *  * Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *  * Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-
-/*
- * Optimized memcpy() for ARM.
- *
- * note that memcpy() always returns the destination pointer,
- * so we have to preserve R0.
-  */
-
-/*
- * This file has been modified from the original for use in musl libc.
- * The main changes are: addition of .type memcpy,%function to make the
- * code safely callable from thumb mode, adjusting the return
- * instructions to be compatible with pre-thumb ARM cpus, and removal
- * of prefetch code that is not compatible with older cpus.
- */
-
-.global memcpy
-.type memcpy,%function
-memcpy:
-	/* The stack must always be 64-bits aligned to be compliant with the
-	 * ARM ABI. Since we have to save R0, we might as well save R4
-	 * which we can use for better pipelining of the reads below
-	 */
-	.fnstart
-	.save       {r0, r4, lr}
-	stmfd       sp!, {r0, r4, lr}
-	/* Making room for r5-r11 which will be spilled later */
-	.pad        #28
-	sub         sp, sp, #28
-
-	/* it simplifies things to take care of len<4 early */
-	cmp     r2, #4
-	blo     copy_last_3_and_return
-
-	/* compute the offset to align the source
-	 * offset = (4-(src&3))&3 = -src & 3
-	 */
-	rsb     r3, r1, #0
-	ands    r3, r3, #3
-	beq     src_aligned
-
-	/* align source to 32 bits. We need to insert 2 instructions between
-	 * a ldr[b|h] and str[b|h] because byte and half-word instructions
-	 * stall 2 cycles.
-	 */
-	movs    r12, r3, lsl #31
-	sub     r2, r2, r3              /* we know that r3 <= r2 because r2 >= 4 */
-	.word 0x44d13001 /* ldrbmi r3, [r1], #1 */
-	.word 0x24d14001 /* ldrbcs r4, [r1], #1 */
-	.word 0x24d1c001 /* ldrbcs r12,[r1], #1 */
-	.word 0x44c03001 /* strbmi r3, [r0], #1 */
-	.word 0x24c04001 /* strbcs r4, [r0], #1 */
-	.word 0x24c0c001 /* strbcs r12,[r0], #1 */
-
-src_aligned:
-
-	/* see if src and dst are aligned together (congruent) */
-	eor     r12, r0, r1
-	tst     r12, #3
-	bne     non_congruent
-
-	/* Use post-incriment mode for stm to spill r5-r11 to reserved stack
-	 * frame. Don't update sp.
-	 */
-	stmea   sp, {r5-r11}
-
-	/* align the destination to a cache-line */
-	rsb     r3, r0, #0
-	ands    r3, r3, #0x1C
-	beq     congruent_aligned32
-	cmp     r3, r2
-	andhi   r3, r2, #0x1C
-
-	/* conditionnaly copies 0 to 7 words (length in r3) */
-	movs    r12, r3, lsl #28
-	ldmcs   r1!, {r4, r5, r6, r7}           /* 16 bytes */
-	ldmmi   r1!, {r8, r9}                   /*  8 bytes */
-	stmcs   r0!, {r4, r5, r6, r7}
-	stmmi   r0!, {r8, r9}
-	tst     r3, #0x4
-	ldrne   r10,[r1], #4                    /*  4 bytes */
-	strne   r10,[r0], #4
-	sub     r2, r2, r3
-
-congruent_aligned32:
-	/*
-	 * here source is aligned to 32 bytes.
-	 */
-
-cached_aligned32:
-	subs    r2, r2, #32
-	blo     less_than_32_left
-
-	/*
-	 * We preload a cache-line up to 64 bytes ahead. On the 926, this will
-	 * stall only until the requested world is fetched, but the linefill
-	 * continues in the the background.
-	 * While the linefill is going, we write our previous cache-line
-	 * into the write-buffer (which should have some free space).
-	 * When the linefill is done, the writebuffer will
-	 * start dumping its content into memory
-	 *
-	 * While all this is going, we then load a full cache line into
-	 * 8 registers, this cache line should be in the cache by now
-	 * (or partly in the cache).
-	 *
-	 * This code should work well regardless of the source/dest alignment.
-	 *
-	 */
-
-	/* Align the preload register to a cache-line because the cpu does
-	 * "critical word first" (the first word requested is loaded first).
-	 */
-	@ bic           r12, r1, #0x1F
-	@ add           r12, r12, #64
-
-1:      ldmia   r1!, { r4-r11 }
-	subs    r2, r2, #32
-
-	/* 
-	 * NOTE: if r12 is more than 64 ahead of r1, the following ldrhi
-	 * for ARM9 preload will not be safely guarded by the preceding subs.
-	 * When it is safely guarded the only possibility to have SIGSEGV here
-	 * is because the caller overstates the length.
-	 */
-	@ ldrhi         r3, [r12], #32      /* cheap ARM9 preload */
-	stmia   r0!, { r4-r11 }
-	bhs     1b
-
-	add     r2, r2, #32
-
-less_than_32_left:
-	/*
-	 * less than 32 bytes left at this point (length in r2)
-	 */
-
-	/* skip all this if there is nothing to do, which should
-	 * be a common case (if not executed the code below takes
-	 * about 16 cycles)
-	 */
-	tst     r2, #0x1F
-	beq     1f
-
-	/* conditionnaly copies 0 to 31 bytes */
-	movs    r12, r2, lsl #28
-	ldmcs   r1!, {r4, r5, r6, r7}           /* 16 bytes */
-	ldmmi   r1!, {r8, r9}                   /*  8 bytes */
-	stmcs   r0!, {r4, r5, r6, r7}
-	stmmi   r0!, {r8, r9}
-	movs    r12, r2, lsl #30
-	ldrcs   r3, [r1], #4                    /*  4 bytes */
-	.word 0x40d140b2 /* ldrhmi r4, [r1], #2 */ /*  2 bytes */
-	strcs   r3, [r0], #4
-	.word 0x40c040b2 /* strhmi r4, [r0], #2 */
-	tst     r2, #0x1
-	.word 0x15d13000 /* ldrbne r3, [r1] */  /*  last byte  */
-	.word 0x15c03000 /* strbne r3, [r0] */
-
-	/* we're done! restore everything and return */
-1:      ldmfd   sp!, {r5-r11}
-	ldmfd   sp!, {r0, r4, lr}
-	tst     lr, #1
-	moveq   pc, lr
-	bx      lr
-
-	/********************************************************************/
-
-non_congruent:
-	/*
-	 * here source is aligned to 4 bytes
-	 * but destination is not.
-	 *
-	 * in the code below r2 is the number of bytes read
-	 * (the number of bytes written is always smaller, because we have
-	 * partial words in the shift queue)
-	 */
-	cmp     r2, #4
-	blo     copy_last_3_and_return
-
-	/* Use post-incriment mode for stm to spill r5-r11 to reserved stack
-	 * frame. Don't update sp.
-	 */
-	stmea   sp, {r5-r11}
-
-	/* compute shifts needed to align src to dest */
-	rsb     r5, r0, #0
-	and     r5, r5, #3                      /* r5 = # bytes in partial words */
-	mov     r12, r5, lsl #3         /* r12 = right */
-	rsb     lr, r12, #32            /* lr = left  */
-
-	/* read the first word */
-	ldr     r3, [r1], #4
-	sub     r2, r2, #4
-
-	/* write a partial word (0 to 3 bytes), such that destination
-	 * becomes aligned to 32 bits (r5 = nb of words to copy for alignment)
-	 */
-	movs    r5, r5, lsl #31
-	.word 0x44c03001 /* strbmi r3, [r0], #1 */
-	movmi   r3, r3, lsr #8
-	.word 0x24c03001 /* strbcs r3, [r0], #1 */
-	movcs   r3, r3, lsr #8
-	.word 0x24c03001 /* strbcs r3, [r0], #1 */
-	movcs   r3, r3, lsr #8
-
-	cmp     r2, #4
-	blo     partial_word_tail
-
-	/* Align destination to 32 bytes (cache line boundary) */
-1:      tst     r0, #0x1c
-	beq     2f
-	ldr     r5, [r1], #4
-	sub     r2, r2, #4
-	orr     r4, r3, r5,             lsl lr
-	mov     r3, r5,                 lsr r12
-	str     r4, [r0], #4
-	cmp     r2, #4
-	bhs     1b
-	blo     partial_word_tail
-
-	/* copy 32 bytes at a time */
-2:      subs    r2, r2, #32
-	blo     less_than_thirtytwo
-
-	/* Use immediate mode for the shifts, because there is an extra cycle
-	 * for register shifts, which could account for up to 50% of
-	 * performance hit.
-	 */
-
-	cmp     r12, #24
-	beq     loop24
-	cmp     r12, #8
-	beq     loop8
-
-loop16:
-	ldr     r12, [r1], #4
-1:      mov     r4, r12
-	ldmia   r1!, {   r5,r6,r7,  r8,r9,r10,r11}
-	subs    r2, r2, #32
-	ldrhs   r12, [r1], #4
-	orr     r3, r3, r4, lsl #16
-	mov     r4, r4, lsr #16
-	orr     r4, r4, r5, lsl #16
-	mov     r5, r5, lsr #16
-	orr     r5, r5, r6, lsl #16
-	mov     r6, r6, lsr #16
-	orr     r6, r6, r7, lsl #16
-	mov     r7, r7, lsr #16
-	orr     r7, r7, r8, lsl #16
-	mov     r8, r8, lsr #16
-	orr     r8, r8, r9, lsl #16
-	mov     r9, r9, lsr #16
-	orr     r9, r9, r10, lsl #16
-	mov     r10, r10,               lsr #16
-	orr     r10, r10, r11, lsl #16
-	stmia   r0!, {r3,r4,r5,r6, r7,r8,r9,r10}
-	mov     r3, r11, lsr #16
-	bhs     1b
-	b       less_than_thirtytwo
-
-loop8:
-	ldr     r12, [r1], #4
-1:      mov     r4, r12
-	ldmia   r1!, {   r5,r6,r7,  r8,r9,r10,r11}
-	subs    r2, r2, #32
-	ldrhs   r12, [r1], #4
-	orr     r3, r3, r4, lsl #24
-	mov     r4, r4, lsr #8
-	orr     r4, r4, r5, lsl #24
-	mov     r5, r5, lsr #8
-	orr     r5, r5, r6, lsl #24
-	mov     r6, r6,  lsr #8
-	orr     r6, r6, r7, lsl #24
-	mov     r7, r7,  lsr #8
-	orr     r7, r7, r8,             lsl #24
-	mov     r8, r8,  lsr #8
-	orr     r8, r8, r9,             lsl #24
-	mov     r9, r9,  lsr #8
-	orr     r9, r9, r10,    lsl #24
-	mov     r10, r10, lsr #8
-	orr     r10, r10, r11,  lsl #24
-	stmia   r0!, {r3,r4,r5,r6, r7,r8,r9,r10}
-	mov     r3, r11, lsr #8
-	bhs     1b
-	b       less_than_thirtytwo
-
-loop24:
-	ldr     r12, [r1], #4
-1:      mov     r4, r12
-	ldmia   r1!, {   r5,r6,r7,  r8,r9,r10,r11}
-	subs    r2, r2, #32
-	ldrhs   r12, [r1], #4
-	orr     r3, r3, r4, lsl #8
-	mov     r4, r4, lsr #24
-	orr     r4, r4, r5, lsl #8
-	mov     r5, r5, lsr #24
-	orr     r5, r5, r6, lsl #8
-	mov     r6, r6, lsr #24
-	orr     r6, r6, r7, lsl #8
-	mov     r7, r7, lsr #24
-	orr     r7, r7, r8, lsl #8
-	mov     r8, r8, lsr #24
-	orr     r8, r8, r9, lsl #8
-	mov     r9, r9, lsr #24
-	orr     r9, r9, r10, lsl #8
-	mov     r10, r10, lsr #24
-	orr     r10, r10, r11, lsl #8
-	stmia   r0!, {r3,r4,r5,r6, r7,r8,r9,r10}
-	mov     r3, r11, lsr #24
-	bhs     1b
-
-less_than_thirtytwo:
-	/* copy the last 0 to 31 bytes of the source */
-	rsb     r12, lr, #32            /* we corrupted r12, recompute it  */
-	add     r2, r2, #32
-	cmp     r2, #4
-	blo     partial_word_tail
-
-1:      ldr     r5, [r1], #4
-	sub     r2, r2, #4
-	orr     r4, r3, r5,             lsl lr
-	mov     r3,     r5,                     lsr r12
-	str     r4, [r0], #4
-	cmp     r2, #4
-	bhs     1b
-
-partial_word_tail:
-	/* we have a partial word in the input buffer */
-	movs    r5, lr, lsl #(31-3)
-	.word 0x44c03001 /* strbmi r3, [r0], #1 */
-	movmi   r3, r3, lsr #8
-	.word 0x24c03001 /* strbcs r3, [r0], #1 */
-	movcs   r3, r3, lsr #8
-	.word 0x24c03001 /* strbcs r3, [r0], #1 */
-
-	/* Refill spilled registers from the stack. Don't update sp. */
-	ldmfd   sp, {r5-r11}
-
-copy_last_3_and_return:
-	movs    r2, r2, lsl #31 /* copy remaining 0, 1, 2 or 3 bytes */
-	.word 0x44d12001 /* ldrbmi r2, [r1], #1 */
-	.word 0x24d13001 /* ldrbcs r3, [r1], #1 */
-	.word 0x25d1c000 /* ldrbcs r12,[r1] */
-	.word 0x44c02001 /* strbmi r2, [r0], #1 */
-	.word 0x24c03001 /* strbcs r3, [r0], #1 */
-	.word 0x25c0c000 /* strbcs r12,[r0] */
-
-	/* we're done! restore sp and spilled registers and return */
-	add     sp,  sp, #28
-	ldmfd   sp!, {r0, r4, lr}
-	tst     lr, #1
-	moveq   pc, lr
-	bx      lr
--- a/src/string/armel/memcpy.sub
+++ /dev/null
@@ -1 +0,0 @@
-memcpy.s
--- a/src/string/armhf/memcpy.sub
+++ /dev/null
@@ -1 +0,0 @@
-../armel/memcpy.s
--- a/src/thread/__syscall_cp.c
+++ b/src/thread/__syscall_cp.c
@@ -1,9 +1,7 @@
 #include "pthread_impl.h"
 #include "syscall.h"
 
-#ifdef SHARED
 __attribute__((__visibility__("hidden")))
-#endif
 long __syscall_cp_c();
 
 static long sccp(syscall_arg_t nr,
--- a/src/thread/__tls_get_addr.c
+++ b/src/thread/__tls_get_addr.c
@@ -1,16 +1,16 @@
 #include <stddef.h>
 #include "pthread_impl.h"
+#include "libc.h"
+
+__attribute__((__visibility__("hidden")))
+void *__tls_get_new(size_t *);
 
 void *__tls_get_addr(size_t *v)
 {
 	pthread_t self = __pthread_self();
-#ifdef SHARED
-	__attribute__((__visibility__("hidden")))
-	void *__tls_get_new(size_t *);
 	if (v[0]<=(size_t)self->dtv[0])
 		return (char *)self->dtv[v[0]]+v[1]+DTP_OFFSET;
 	return __tls_get_new(v);
-#else
-	return (char *)self->dtv[1]+v[1]+DTP_OFFSET;
-#endif
 }
+
+weak_alias(__tls_get_addr, __tls_get_new);
--- a/src/thread/aarch64/syscall_cp.s
+++ b/src/thread/aarch64/syscall_cp.s
@@ -17,7 +17,7 @@
 __syscall_cp_asm:
 __cp_begin:
 	ldr w0,[x0]
-	cbnz w0,1f
+	cbnz w0,__cp_cancel
 	mov x8,x1
 	mov x0,x2
 	mov x1,x3
@@ -28,6 +28,5 @@ __cp_begin:
 	svc 0
 __cp_end:
 	ret
-
-	// cbnz might not be able to jump far enough
-1:	b __cancel
+__cp_cancel:
+	b __cancel
--- /dev/null
+++ b/src/thread/arm/__set_thread_area.c
@@ -0,0 +1,49 @@
+#include <stdint.h>
+#include <elf.h>
+#include "pthread_impl.h"
+#include "libc.h"
+
+#define HWCAP_TLS (1 << 15)
+
+extern const unsigned char __attribute__((__visibility__("hidden")))
+	__a_barrier_dummy[], __a_barrier_oldkuser[],
+	__a_barrier_v6[], __a_barrier_v7[],
+	__a_cas_dummy[], __a_cas_v6[], __a_cas_v7[],
+	__a_gettp_dummy[];
+
+#define __a_barrier_kuser 0xffff0fa0
+#define __a_cas_kuser 0xffff0fc0
+#define __a_gettp_kuser 0xffff0fe0
+
+extern uintptr_t __attribute__((__visibility__("hidden")))
+	__a_barrier_ptr, __a_cas_ptr, __a_gettp_ptr;
+
+#define SET(op,ver) (__a_##op##_ptr = \
+	(uintptr_t)__a_##op##_##ver - (uintptr_t)__a_##op##_dummy)
+
+int __set_thread_area(void *p)
+{
+#if !__ARM_ARCH_7A__ && !__ARM_ARCH_7R__ && __ARM_ARCH < 7
+	if (__hwcap & HWCAP_TLS) {
+		size_t *aux;
+		SET(cas, v7);
+		SET(barrier, v7);
+		for (aux=libc.auxv; *aux; aux+=2) {
+			if (*aux != AT_PLATFORM) continue;
+			const char *s = (void *)aux[1];
+			if (s[0]!='v' || s[1]!='6' || s[2]-'0'<10u) break;
+			SET(cas, v6);
+			SET(barrier, v6);
+			break;
+		}
+	} else {
+		int ver = *(int *)0xffff0ffc;
+		SET(gettp, kuser);
+		SET(cas, kuser);
+		SET(barrier, kuser);
+		if (ver < 2) a_crash();
+		if (ver < 3) SET(barrier, oldkuser);
+	}
+#endif
+	return __syscall(0xf0005, p);
+}
--- a/src/thread/arm/__set_thread_area.s
+++ /dev/null
@@ -1 +0,0 @@
-/* Replaced by C code in arch/arm/src */
--- a/src/thread/arm/__unmapself.s
+++ b/src/thread/arm/__unmapself.s
@@ -1,3 +1,4 @@
+.syntax unified
 .text
 .global __unmapself
 .type   __unmapself,%function
--- /dev/null
+++ b/src/thread/arm/atomics.s
@@ -0,0 +1,113 @@
+.syntax unified
+.text
+
+.global __a_barrier
+.hidden __a_barrier
+.type __a_barrier,%function
+__a_barrier:
+	ldr ip,1f
+	ldr ip,[pc,ip]
+	add pc,pc,ip
+1:	.word __a_barrier_ptr-1b
+.global __a_barrier_dummy
+.hidden __a_barrier_dummy
+__a_barrier_dummy:
+	bx lr
+.global __a_barrier_oldkuser
+.hidden __a_barrier_oldkuser
+__a_barrier_oldkuser:
+	push {r0,r1,r2,r3,ip,lr}
+	mov r1,r0
+	mov r2,sp
+	ldr ip,=0xffff0fc0
+	mov lr,pc
+	mov pc,ip
+	pop {r0,r1,r2,r3,ip,lr}
+	bx lr
+.global __a_barrier_v6
+.hidden __a_barrier_v6
+__a_barrier_v6:
+	mcr p15,0,r0,c7,c10,5
+	bx lr
+.global __a_barrier_v7
+.hidden __a_barrier_v7
+__a_barrier_v7:
+	.word 0xf57ff05b        /* dmb ish */
+	bx lr
+
+.global __a_cas
+.hidden __a_cas
+.type __a_cas,%function
+__a_cas:
+	ldr ip,1f
+	ldr ip,[pc,ip]
+	add pc,pc,ip
+1:	.word __a_cas_ptr-1b
+.global __a_cas_dummy
+.hidden __a_cas_dummy
+__a_cas_dummy:
+	mov r3,r0
+	ldr r0,[r2]
+	subs r0,r3,r0
+	streq r1,[r2]
+	bx lr
+.global __a_cas_v6
+.hidden __a_cas_v6
+__a_cas_v6:
+	mov r3,r0
+	mcr p15,0,r0,c7,c10,5
+1:	.word 0xe1920f9f        /* ldrex r0,[r2] */
+	subs r0,r3,r0
+	.word 0x01820f91        /* strexeq r0,r1,[r2] */
+	teqeq r0,#1
+	beq 1b
+	mcr p15,0,r0,c7,c10,5
+	bx lr
+.global __a_cas_v7
+.hidden __a_cas_v7
+__a_cas_v7:
+	mov r3,r0
+	.word 0xf57ff05b        /* dmb ish */
+1:	.word 0xe1920f9f        /* ldrex r0,[r2] */
+	subs r0,r3,r0
+	.word 0x01820f91        /* strexeq r0,r1,[r2] */
+	teqeq r0,#1
+	beq 1b
+	.word 0xf57ff05b        /* dmb ish */
+	bx lr
+
+.global __aeabi_read_tp
+.type __aeabi_read_tp,%function
+__aeabi_read_tp:
+
+.global __a_gettp
+.hidden __a_gettp
+.type __a_gettp,%function
+__a_gettp:
+	ldr r0,1f
+	ldr r0,[pc,r0]
+	add pc,pc,r0
+1:	.word __a_gettp_ptr-1b
+.global __a_gettp_dummy
+.hidden __a_gettp_dummy
+__a_gettp_dummy:
+	mrc p15,0,r0,c13,c0,3
+	bx lr
+
+.data
+.align 2
+
+.global __a_barrier_ptr
+.hidden __a_barrier_ptr
+__a_barrier_ptr:
+	.word 0
+
+.global __a_cas_ptr
+.hidden __a_cas_ptr
+__a_cas_ptr:
+	.word 0
+
+.global __a_gettp_ptr
+.hidden __a_gettp_ptr
+__a_gettp_ptr:
+	.word 0
--- a/src/thread/arm/clone.s
+++ b/src/thread/arm/clone.s
@@ -1,3 +1,4 @@
+.syntax unified
 .text
 .global __clone
 .type   __clone,%function
@@ -15,8 +16,6 @@ __clone:
 	tst r0,r0
 	beq 1f
 	ldmfd sp!,{r4,r5,r6,r7}
-	tst lr,#1
-	moveq pc,lr
 	bx lr
 
 1:	mov r0,r6
--- a/src/thread/arm/syscall_cp.s
+++ b/src/thread/arm/syscall_cp.s
@@ -1,3 +1,4 @@
+.syntax unified
 .global __cp_begin
 .hidden __cp_begin
 .global __cp_end
@@ -22,8 +23,6 @@ __cp_begin:
 	svc 0
 __cp_end:
 	ldmfd sp!,{r4,r5,r6,r7,lr}
-	tst lr,#1
-	moveq pc,lr
 	bx lr
 __cp_cancel:
 	ldmfd sp!,{r4,r5,r6,r7,lr}
--- a/src/thread/microblaze/syscall_cp.s
+++ b/src/thread/microblaze/syscall_cp.s
@@ -11,7 +11,7 @@
 __syscall_cp_asm:
 __cp_begin:
 	lwi     r5, r5, 0
-	bnei    r5, __cancel
+	bnei    r5, __cp_cancel
 	addi    r12, r6, 0
 	add     r5, r7, r0
 	add     r6, r8, r0
@@ -23,3 +23,5 @@ __cp_begin:
 __cp_end:
 	rtsd    r15, 8
 	nop
+__cp_cancel:
+	bri     __cancel
--- a/src/thread/or1k/syscall_cp.s
+++ b/src/thread/or1k/syscall_cp.s
@@ -12,7 +12,7 @@ __syscall_cp_asm:
 __cp_begin:
 	l.lwz	r3, 0(r3)
 	l.sfeqi	r3, 0
-	l.bnf	__cancel
+	l.bnf	__cp_cancel
 	 l.ori	r11, r4, 0
 	l.ori	r3, r5, 0
 	l.ori	r4, r6, 0
@@ -24,3 +24,6 @@ __cp_begin:
 __cp_end:
 	l.jr	r9
 	 l.nop
+__cp_cancel:
+	l.j	__cancel
+	 l.nop
--- a/src/thread/powerpc/syscall_cp.s
+++ b/src/thread/powerpc/syscall_cp.s
@@ -38,7 +38,7 @@ __cp_begin:
 	cmpwi cr7, 0, 0 #compare r0 with 0, store result in cr7. 
 	beq+ cr7, 1f #jump to label 1 if r0 was 0
 	
-	b __cancel #else call cancel 
+	b __cp_cancel #else call cancel
 1:
 	#ok, the cancel flag was not set
 	# syscall: number goes to r0, the rest 3-8
@@ -55,3 +55,5 @@ __cp_end:
 	#else negate result.
 	neg 3, 3
 	blr
+__cp_cancel:
+	b __cancel
--- a/src/thread/pthread_cancel.c
+++ b/src/thread/pthread_cancel.c
@@ -1,12 +1,11 @@
+#define _GNU_SOURCE
 #include <string.h>
 #include "pthread_impl.h"
 #include "syscall.h"
 #include "libc.h"
 
-#ifdef SHARED
 __attribute__((__visibility__("hidden")))
-#endif
-long __cancel(), __cp_cancel(), __syscall_cp_asm(), __syscall_cp_c();
+long __cancel(), __syscall_cp_asm(), __syscall_cp_c();
 
 long __cancel()
 {
@@ -17,12 +16,6 @@ long __cancel()
 	return -ECANCELED;
 }
 
-/* If __syscall_cp_asm has adjusted the stack pointer, it must provide a
- * definition of __cp_cancel to undo those adjustments and call __cancel.
- * Otherwise, __cancel provides a definition for __cp_cancel. */
-
-weak_alias(__cancel, __cp_cancel);
-
 long __syscall_cp_asm(volatile void *, syscall_arg_t,
                       syscall_arg_t, syscall_arg_t, syscall_arg_t,
                       syscall_arg_t, syscall_arg_t, syscall_arg_t);
@@ -52,24 +45,22 @@ static void _sigaddset(sigset_t *set, in
 	set->__bits[s/8/sizeof *set->__bits] |= 1UL<<(s&8*sizeof *set->__bits-1);
 }
 
-#ifdef SHARED
 __attribute__((__visibility__("hidden")))
-#endif
-extern const char __cp_begin[1], __cp_end[1];
+extern const char __cp_begin[1], __cp_end[1], __cp_cancel[1];
 
 static void cancel_handler(int sig, siginfo_t *si, void *ctx)
 {
 	pthread_t self = __pthread_self();
 	ucontext_t *uc = ctx;
-	const char *ip = ((char **)&uc->uc_mcontext)[CANCEL_REG_IP];
+	uintptr_t pc = uc->uc_mcontext.MC_PC;
 
 	a_barrier();
 	if (!self->cancel || self->canceldisable == PTHREAD_CANCEL_DISABLE) return;
 
 	_sigaddset(&uc->uc_sigmask, SIGCANCEL);
 
-	if (self->cancelasync || ip >= __cp_begin && ip < __cp_end) {
-		((char **)&uc->uc_mcontext)[CANCEL_REG_IP] = (char *)__cp_cancel;
+	if (self->cancelasync || pc >= (uintptr_t)__cp_begin && pc < (uintptr_t)__cp_end) {
+		uc->uc_mcontext.MC_PC = (uintptr_t)__cp_cancel;
 		return;
 	}
 
--- /dev/null
+++ b/src/thread/sh/__set_thread_area.c
@@ -0,0 +1,40 @@
+#include "pthread_impl.h"
+#include "libc.h"
+#include <elf.h>
+
+/* Also perform sh-specific init */
+
+#define CPU_HAS_LLSC 0x0040
+#define CPU_HAS_CAS_L 0x0400
+
+__attribute__((__visibility__("hidden")))
+extern const char __sh_cas_gusa[], __sh_cas_llsc[], __sh_cas_imask[], __sh_cas_cas_l[];
+
+__attribute__((__visibility__("hidden")))
+const void *__sh_cas_ptr;
+
+__attribute__((__visibility__("hidden")))
+unsigned __sh_nommu;
+
+int __set_thread_area(void *p)
+{
+	size_t *aux;
+	__asm__ __volatile__ ( "ldc %0, gbr" : : "r"(p) : "memory" );
+#ifndef __SH4A__
+	__sh_cas_ptr = __sh_cas_gusa;
+#if !defined(__SH3__) && !defined(__SH4__)
+	for (aux=libc.auxv; *aux; aux+=2) {
+		if (*aux != AT_PLATFORM) continue;
+		const char *s = (void *)aux[1];
+		if (s[0]!='s' || s[1]!='h' || s[2]!='2' || s[3]-'0'<10u) break;
+		__sh_cas_ptr = __sh_cas_imask;
+		__sh_nommu = 1;
+	}
+#endif
+	if (__hwcap & CPU_HAS_CAS_L)
+		__sh_cas_ptr = __sh_cas_cas_l;
+	else if (__hwcap & CPU_HAS_LLSC)
+		__sh_cas_ptr = __sh_cas_llsc;
+#endif
+	return 0;
+}
--- /dev/null
+++ b/src/thread/sh/__unmapself.c
@@ -0,0 +1,24 @@
+#include "pthread_impl.h"
+
+void __unmapself_sh_mmu(void *, size_t);
+void __unmapself_sh_nommu(void *, size_t);
+
+#if !defined(__SH3__) && !defined(__SH4__)
+#define __unmapself __unmapself_sh_nommu
+#include "dynlink.h"
+#undef CRTJMP
+#define CRTJMP(pc,sp) __asm__ __volatile__( \
+	"mov.l @%0+,r0 ; mov.l @%0,r12 ; jmp @r0 ; mov %1,r15" \
+	: : "r"(pc), "r"(sp) : "r0", "memory" )
+#include "../__unmapself.c"
+#undef __unmapself
+extern __attribute__((__visibility__("hidden"))) unsigned __sh_nommu;
+#else
+#define __sh_nommu 0
+#endif
+
+void __unmapself(void *base, size_t size)
+{
+	if (__sh_nommu) __unmapself_sh_nommu(base, size);
+	else __unmapself_sh_mmu(base, size);
+}
--- a/src/thread/sh/__unmapself.s
+++ /dev/null
@@ -1,22 +0,0 @@
-.text
-.global __unmapself_sh_mmu
-.type   __unmapself_sh_mmu, @function
-__unmapself_sh_mmu:
-	mov   #91, r3  ! SYS_munmap
-	trapa #31
-
-	or    r0, r0
-	or    r0, r0
-	or    r0, r0
-	or    r0, r0
-	or    r0, r0
-
-	mov   #1, r3   ! SYS_exit
-	mov   #0, r4
-	trapa #31
-
-	or    r0, r0
-	or    r0, r0
-	or    r0, r0
-	or    r0, r0
-	or    r0, r0
--- /dev/null
+++ b/src/thread/sh/__unmapself_mmu.s
@@ -0,0 +1,22 @@
+.text
+.global __unmapself_sh_mmu
+.type   __unmapself_sh_mmu, @function
+__unmapself_sh_mmu:
+	mov   #91, r3  ! SYS_munmap
+	trapa #31
+
+	or    r0, r0
+	or    r0, r0
+	or    r0, r0
+	or    r0, r0
+	or    r0, r0
+
+	mov   #1, r3   ! SYS_exit
+	mov   #0, r4
+	trapa #31
+
+	or    r0, r0
+	or    r0, r0
+	or    r0, r0
+	or    r0, r0
+	or    r0, r0
--- /dev/null
+++ b/src/thread/sh/atomics.s
@@ -0,0 +1,65 @@
+/* Contract for all versions is same as cas.l r2,r3,@r0
+ * pr and r1 are also clobbered (by jsr & r1 as temp).
+ * r0,r2,r4-r15 must be preserved.
+ * r3 contains result (==r2 iff cas succeeded). */
+
+	.align 2
+.global __sh_cas_gusa
+.hidden __sh_cas_gusa
+__sh_cas_gusa:
+	mov.l r5,@-r15
+	mov.l r4,@-r15
+	mov r0,r4
+	mova 1f,r0
+	mov r15,r1
+	mov #(0f-1f),r15
+0:	mov.l @r4,r5
+	cmp/eq r5,r2
+	bf 1f
+	mov.l r3,@r4
+1:	mov r1,r15
+	mov r5,r3
+	mov r4,r0
+	mov.l @r15+,r4
+	rts
+	 mov.l @r15+,r5
+
+.global __sh_cas_llsc
+.hidden __sh_cas_llsc
+__sh_cas_llsc:
+	mov r0,r1
+	synco
+0:	movli.l @r1,r0
+	cmp/eq r0,r2
+	bf 1f
+	mov r3,r0
+	movco.l r0,@r1
+	bf 0b
+	mov r2,r0
+1:	synco
+	mov r0,r3
+	rts
+	 mov r1,r0
+
+.global __sh_cas_imask
+.hidden __sh_cas_imask
+__sh_cas_imask:
+	mov r0,r1
+	stc sr,r0
+	mov.l r0,@-r15
+	or #0xf0,r0
+	ldc r0,sr
+	mov.l @r1,r0
+	cmp/eq r0,r2
+	bf 1f
+	mov.l r3,@r1
+1:	ldc.l @r15+,sr
+	mov r0,r3
+	rts
+	 mov r1,r0
+
+.global __sh_cas_cas_l
+.hidden __sh_cas_cas_l
+__sh_cas_cas_l:
+	rts
+	 .word 0x2323 /* cas.l r2,r3,@r0 */
--- a/src/thread/sh/syscall_cp.s
+++ b/src/thread/sh/syscall_cp.s
@@ -14,17 +14,8 @@ __syscall_cp_asm:
 __cp_begin:
 	mov.l @r4, r4
 	tst   r4, r4
-	bt    2f
-
-	mov.l L1, r0
-	braf  r0
-	 nop
-1:
-
-.align 2
-L1:	.long __cancel@PLT-(1b-.)
-
-2:	mov   r5, r3
+	bf    __cp_cancel
+	mov   r5, r3
 	mov   r6, r4
 	mov   r7, r5
 	mov.l @r15, r6
@@ -43,3 +34,12 @@ __cp_end:
 
 	rts
 	 nop
+
+__cp_cancel:
+	mov.l 2f, r0
+	braf  r0
+	 nop
+1:
+
+.align 2
+2:	.long __cancel@PCREL-(1b-.)
--- a/src/thread/x32/syscall_cp.s
+++ b/src/thread/x32/syscall_cp.s
@@ -14,7 +14,7 @@ __syscall_cp_internal:
 __cp_begin:
 	mov (%rdi),%eax
 	test %eax,%eax
-	jnz __cancel
+	jnz __cp_cancel
 	mov %rdi,%r11
 	mov %rsi,%rax
 	mov %rdx,%rdi
@@ -27,3 +27,5 @@ __cp_begin:
 	syscall
 __cp_end:
 	ret
+__cp_cancel:
+	jmp __cancel
--- /dev/null
+++ b/src/thread/x32/syscall_cp_fixup.c
@@ -0,0 +1,38 @@
+#include <sys/syscall.h>
+
+__attribute__((__visibility__("hidden")))
+long __syscall_cp_internal(volatile void*, long long, long long, long long, long long,
+                             long long, long long, long long);
+
+struct __timespec { long long tv_sec; long tv_nsec; };
+struct __timespec_kernel { long long tv_sec; long long tv_nsec; };
+#define __tsc(X) ((struct __timespec*)(unsigned long)(X))
+#define __fixup(X) do { if(X) { \
+	ts->tv_sec = __tsc(X)->tv_sec; \
+	ts->tv_nsec = __tsc(X)->tv_nsec; \
+	(X) = (unsigned long)ts; } } while(0)
+
+__attribute__((__visibility__("hidden")))
+long __syscall_cp_asm (volatile void * foo, long long n, long long a1, long long a2, long long a3,
+	                     long long a4, long long a5, long long a6)
+{
+	struct __timespec_kernel ts[1];
+	switch (n) {
+	case SYS_mq_timedsend: case SYS_mq_timedreceive: case SYS_pselect6:
+		__fixup(a5);
+		break;
+	case SYS_futex:
+		if((a2 & (~128 /* FUTEX_PRIVATE_FLAG */)) == 0 /* FUTEX_WAIT */)
+			__fixup(a4);
+		break;
+	case SYS_clock_nanosleep:
+	case SYS_rt_sigtimedwait: case SYS_ppoll:
+		__fixup(a3);
+		break;
+	case SYS_nanosleep:
+		__fixup(a1);
+		break;
+	}
+	return __syscall_cp_internal(foo, n, a1, a2, a3, a4, a5, a6);
+}
+
--- a/src/thread/x86_64/syscall_cp.s
+++ b/src/thread/x86_64/syscall_cp.s
@@ -14,7 +14,7 @@ __syscall_cp_asm:
 __cp_begin:
 	mov (%rdi),%eax
 	test %eax,%eax
-	jnz __cancel
+	jnz __cp_cancel
 	mov %rdi,%r11
 	mov %rsi,%rax
 	mov %rdx,%rdi
@@ -27,3 +27,5 @@ __cp_begin:
 	syscall
 __cp_end:
 	ret
+__cp_cancel:
+	jmp __cancel
--- a/src/time/clock_gettime.c
+++ b/src/time/clock_gettime.c
@@ -5,37 +5,54 @@
 #include "libc.h"
 #include "atomic.h"
 
-static int sc_clock_gettime(clockid_t clk, struct timespec *ts)
+#ifdef VDSO_CGT_SYM
+
+void *__vdsosym(const char *, const char *);
+
+static void *volatile vdso_func;
+
+static int cgt_init(clockid_t clk, struct timespec *ts)
 {
-	int r = __syscall(SYS_clock_gettime, clk, ts);
-	if (!r) return r;
-	if (r == -ENOSYS) {
-		if (clk == CLOCK_REALTIME) {
-			__syscall(SYS_gettimeofday, ts, 0);
-			ts->tv_nsec = (int)ts->tv_nsec * 1000;
-			return 0;
-		}
-		r = -EINVAL;
-	}
-	errno = -r;
-	return -1;
+	void *p = __vdsosym(VDSO_CGT_VER, VDSO_CGT_SYM);
+	int (*f)(clockid_t, struct timespec *) =
+		(int (*)(clockid_t, struct timespec *))p;
+	a_cas_p(&vdso_func, (void *)cgt_init, p);
+	return f ? f(clk, ts) : -ENOSYS;
 }
 
-void *__vdsosym(const char *, const char *);
+static void *volatile vdso_func = (void *)cgt_init;
+
+#endif
 
 int __clock_gettime(clockid_t clk, struct timespec *ts)
 {
+	int r;
+
 #ifdef VDSO_CGT_SYM
-	static int (*volatile cgt)(clockid_t, struct timespec *);
-	if (!cgt) {
-		void *f = __vdsosym(VDSO_CGT_VER, VDSO_CGT_SYM);
-		if (!f) f = (void *)sc_clock_gettime;
-		a_cas_p(&cgt, 0, f);
+	int (*f)(clockid_t, struct timespec *) =
+		(int (*)(clockid_t, struct timespec *))vdso_func;
+	if (f) {
+		r = f(clk, ts);
+		if (!r) return r;
+		if (r == -EINVAL) return __syscall_ret(r);
+		/* Fall through on errors other than EINVAL. Some buggy
+		 * vdso implementations return ENOSYS for clocks they
+		 * can't handle, rather than making the syscall. This
+		 * also handles the case where cgt_init fails to find
+		 * a vdso function to use. */
 	}
-	return cgt(clk, ts);
-#else
-	return sc_clock_gettime(clk, ts);
 #endif
+
+	r = __syscall(SYS_clock_gettime, clk, ts);
+	if (r == -ENOSYS) {
+		if (clk == CLOCK_REALTIME) {
+			__syscall(SYS_gettimeofday, ts, 0);
+			ts->tv_nsec = (int)ts->tv_nsec * 1000;
+			return 0;
+		}
+		r = -EINVAL;
+	}
+	return __syscall_ret(r);
 }
 
 weak_alias(__clock_gettime, clock_gettime);