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|
- --- a/Rules.mak
- +++ b/Rules.mak
- @@ -411,6 +411,17 @@ ifeq ($(TARGET_ARCH),microblaze)
- SYMBOL_PREFIX=_
- endif
-
- +ifeq ($(TARGET_ARCH),ubicom32)
- + OPTIMIZATION+=-fstrict-aliasing
- + CPU_CFLAGS-$(CONFIG_UBICOM32_V3)+=-march=ubicom32v3
- + CPU_CFLAGS-$(CONFIG_UBICOM32_V4)+=-march=ubicom32v4
- +ifeq ($(UCLIBC_FORMAT_FDPIC_ELF),y)
- + CPU_CFLAGS-y:=-mfdpic
- + CPU_LDFLAGS-y += -Wl,-melf32ubicom32fdpic
- +endif
- +
- +endif
- +
- ifeq ($(TARGET_ARCH),v850)
- SYMBOL_PREFIX=_
- endif
- --- a/extra/Configs/Config.in
- +++ b/extra/Configs/Config.in
- @@ -73,6 +73,9 @@ config TARGET_sh64
- config TARGET_sparc
- bool "sparc"
-
- +config TARGET_ubicom32
- + bool "ubicom32"
- +
- config TARGET_v850
- bool "v850 (BROKEN)"
-
- @@ -174,6 +177,10 @@ if TARGET_sparc
- source "extra/Configs/Config.sparc"
- endif
-
- +if TARGET_ubicom32
- +source "extra/Configs/Config.ubicom32"
- +endif
- +
- if TARGET_v850
- source "extra/Configs/Config.v850"
- endif
- --- a/extra/Configs/Config.in.arch
- +++ b/extra/Configs/Config.in.arch
- @@ -148,7 +148,7 @@ config UCLIBC_HAS_SOFT_FLOAT
- config DO_C99_MATH
- bool "Enable full C99 math library support"
- depends on UCLIBC_HAS_FLOATS
- - default n
- + default y
- help
- If you want the uClibc math library to contain the full set C99
- math library features, then answer Y. If you leave this set to
- --- /dev/null
- +++ b/extra/Configs/Config.ubicom32
- @@ -0,0 +1,44 @@
- +#
- +# For a description of the syntax of this configuration file,
- +# see extra/config/Kconfig-language.txt
- +#
- +
- +config TARGET_ARCH
- + string
- + default "ubicom32"
- +
- +config FORCE_OPTIONS_FOR_ARCH
- + bool
- + default y
- + select ARCH_BIG_ENDIAN
- + select ARCH_HAS_NO_MMU
- +
- +choice
- + prompt "Target Processor Architecture"
- + default CONFIG_UC_UBICOM32_V3
- + help
- + This selects the instruction set architecture of your Ubicom32 CPU. This
- + information is used for optimizing purposes. To build a library that
- + will run on any Ubicom32 CPU, you can specify "v3" here.
- + If you pick anything other than "v3," there is no
- + guarantee that uClibc will even run on anything other than the
- + selected processor type.
- +
- + You should probably select the Ubicom32 ISA that best matches the
- + CPU you will be using on your device. uClibc will be tuned
- + for that architecture.
- +
- + If you don't know what to do, choose "v3"
- +
- +config CONFIG_UC_UBICOM32_V3
- + bool "ISA v3"
- +
- +config CONFIG_UC_UBICOM32_V4
- + bool "ISA v4"
- +endchoice
- +
- +config ARCH_CFLAGS
- + string
- +
- +config CROSS
- + string
- --- a/include/elf.h
- +++ b/include/elf.h
- @@ -331,6 +331,8 @@ typedef struct
-
- #define EM_XSTORMY16 0xad45
-
- +#define EM_UBICOM32 0xde3d /* Ubicom32; no ABI */
- +
- /* FRV magic number - no EABI available??. */
- #define EM_CYGNUS_FRV 0x5441
-
- @@ -3036,6 +3038,55 @@ typedef Elf32_Addr Elf32_Conflict;
- /* Keep this the last entry. */
- #define R_XTENSA_NUM 50
-
- +/* Ubicom32 ELF relocation types */
- +#define R_UBICOM32_NONE 0
- +#define R_UBICOM32_16 1
- +#define R_UBICOM32_32 2
- +#define R_UBICOM32_LO16 3
- +#define R_UBICOM32_HI16 4
- +#define R_UBICOM32_21_PCREL 5
- +#define R_UBICOM32_24_PCREL 6
- +#define R_UBICOM32_HI24 7
- +#define R_UBICOM32_LO7_S 8
- +#define R_UBICOM32_LO7_2_S 9
- +#define R_UBICOM32_LO7_4_S 10
- +#define R_UBICOM32_LO7_D 11
- +#define R_UBICOM32_LO7_2_D 12
- +#define R_UBICOM32_LO7_4_D 13
- +#define R_UBICOM32_32_HARVARD 14
- +#define R_UBICOM32_LO7_CALLI 15
- +#define R_UBICOM32_LO16_CALLI 16
- +#define R_UBICOM32_GOT_HI24 17
- +#define R_UBICOM32_GOT_LO7_S 18
- +#define R_UBICOM32_GOT_LO7_2_S 19
- +#define R_UBICOM32_GOT_LO7_4_S 20
- +#define R_UBICOM32_GOT_LO7_D 21
- +#define R_UBICOM32_GOT_LO7_2_D 22
- +#define R_UBICOM32_GOT_LO7_4_D 23
- +#define R_UBICOM32_FUNCDESC_GOT_HI24 24
- +#define R_UBICOM32_FUNCDESC_GOT_LO7_S 25
- +#define R_UBICOM32_FUNCDESC_GOT_LO7_2_S 26
- +#define R_UBICOM32_FUNCDESC_GOT_LO7_4_S 27
- +#define R_UBICOM32_FUNCDESC_GOT_LO7_D 28
- +#define R_UBICOM32_FUNCDESC_GOT_LO7_2_D 29
- +#define R_UBICOM32_FUNCDESC_GOT_LO7_4_D 30
- +#define R_UBICOM32_GOT_LO7_CALLI 31
- +#define R_UBICOM32_FUNCDESC_GOT_LO7_CALLI 32
- +#define R_UBICOM32_FUNCDESC_VALUE 33
- +#define R_UBICOM32_FUNCDESC 34
- +#define R_UBICOM32_GOTOFFSET_LO 35
- +#define R_UBICOM32_GOTOFFSET_HI 36
- +#define R_UBICOM32_FUNCDESC_GOTOFFSET_LO 37
- +#define R_UBICOM32_FUNCDESC_GOTOFFSET_HI 38
- +#define R_UBICOM32_GNU_VTINHERIT 200
- +#define R_UBICOM32_GNU_VTENTRY 201
- +
- +/* Ubicom32 Flags. */
- +#define EF_UBICOM32_V3 0x00000001 /* -fmarch=ubicom32v3 */
- +#define EF_UBICOM32_V4 0x00000002 /* -fmarch=ubicom32v4 */
- +#define EF_UBICOM32_PIC 0x80000000 /* -fpic */
- +#define EF_UBICOM32_FDPIC 0x40000000 /* -mfdpic */
- +
- __END_DECLS
-
- #endif /* elf.h */
- --- a/include/features.h
- +++ b/include/features.h
- @@ -422,4 +422,10 @@ uClibc was built without large file supp
- # define __linux__ 1
- #endif
-
- +#ifndef libc_hidden_proto
- +#define libc_hidden_proto(name, attrs...)
- +#endif
- +#ifndef libm_hidden_proto
- +#define libm_hidden_proto(name, attrs...)
- +#endif
- #endif /* features.h */
- --- a/ldso/ldso/dl-startup.c
- +++ b/ldso/ldso/dl-startup.c
- @@ -165,10 +165,13 @@ DL_START(unsigned long args)
- aux_dat += 2;
- }
-
- +#if !defined __FDPIC__
- /* locate the ELF header. We need this done as soon as possible
- * (esp since SEND_STDERR() needs this on some platforms... */
- if (!auxvt[AT_BASE].a_un.a_val)
- auxvt[AT_BASE].a_un.a_val = elf_machine_load_address();
- +#endif
- +
- DL_INIT_LOADADDR_BOOT(load_addr, auxvt[AT_BASE].a_un.a_val);
- header = (ElfW(Ehdr) *) auxvt[AT_BASE].a_un.a_val;
-
- --- a/ldso/ldso/ldso.c
- +++ b/ldso/ldso/ldso.c
- @@ -179,10 +179,12 @@ void _dl_get_ready_to_run(struct elf_res
- _dl_progname = argv[0];
- }
-
- +#if 0 // blackfin does this, we do to avoid die during reloc
- if (_start == (void *) auxvt[AT_ENTRY].a_un.a_val) {
- _dl_dprintf(_dl_debug_file, "Standalone execution is not supported yet\n");
- _dl_exit(1);
- }
- +#endif
-
- /* Start to build the tables of the modules that are required for
- * this beast to run. We start with the basic executable, and then
- --- /dev/null
- +++ b/ldso/ldso/ubicom32/dl-debug.h
- @@ -0,0 +1,72 @@
- +/* vi: set sw=4 ts=4: */
- +/* Ubicom32 ELF shared library loader suppport
- + *
- + * Copyright (c) 2009 Ubicom Inc.
- + * Copyright (c) 1994-2000 Eric Youngdale, Peter MacDonald,
- + * David Engel, Hongjiu Lu and Mitch D'Souza
- + * Copyright (C) 2001-2004 Erik Andersen
- + *
- + * All rights reserved.
- + *
- + * Redistribution and use in source and binary forms, with or without
- + * modification, are permitted provided that the following conditions
- + * are met:
- + * 1. Redistributions of source code must retain the above copyright
- + * notice, this list of conditions and the following disclaimer.
- + * 2. The name of the above contributors may not be
- + * used to endorse or promote products derived from this software
- + * without specific prior written permission.
- + *
- + * THIS SOFTWARE IS PROVIDED BY THE 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 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.
- + */
- +
- +static const char *_dl_reltypes_tab[] =
- +{
- + "R_UBICOM32_NONE", /* 0 */
- + "R_UBICOM32_16",
- + "R_UBICOM32_32",
- + "R_UBICOM32_LO16",
- + "R_UBICOM32_HI16",
- + "R_UBICOM32_21_PCREL", /* 5 */
- + "R_UBICOM32_24_PCREL",
- + "R_UBICOM32_HI24",
- + "R_UBICOM32_LO7_S",
- + "R_UBICOM32_LO7_2_S",
- + "R_UBICOM32_LO7_4_S", /* 10 */
- + "R_UBICOM32_LO7_D",
- + "R_UBICOM32_LO7_2_D",
- + "R_UBICOM32_LO7_4_D",
- + "R_UBICOM32_32_HARVARD",
- + "R_UBICOM32_LO7_CALLI", /* 15 */
- + "R_UBICOM32_LO16_CALLI",
- + "R_UBICOM32_GOT_HI24",
- + "R_UBICOM32_GOT_LO7_S",
- + "R_UBICOM32_GOT_LO7_2_S"
- + "R_UBICOM32_GOT_LO7_4_S", /* 20 */
- + "R_UBICOM32_GOT_LO7_D",
- + "R_UBICOM32_GOT_LO7_2_D",
- + "R_UBICOM32_GOT_LO7_4_D",
- + "R_UBICOM32_FUNCDESC_GOT_HI24 24",
- + "R_UBICOM32_FUNCDESC_GOT_LO7_S", /* 25 */
- + "R_UBICOM32_FUNCDESC_GOT_LO7_2_S",
- + "R_UBICOM32_FUNCDESC_GOT_LO7_4_S",
- + "R_UBICOM32_FUNCDESC_GOT_LO7_D",
- + "R_UBICOM32_FUNCDESC_GOT_LO7_2_D",
- + "R_UBICOM32_FUNCDESC_GOT_LO7_4_D", /* 30 */
- + "R_UBICOM32_GOT_LO7_CALLI",
- + "R_UBICOM32_FUNCDESC_VALUE",
- + "R_UBICOM32_FUNCDESC",
- +#if 1
- + [200] "R_UBICOM32_GNU_VTINHERIT" , "R_UBICOM32_GNU_VTENTRY"
- +#endif
- +};
- --- /dev/null
- +++ b/ldso/ldso/ubicom32/dl-inlines.h
- @@ -0,0 +1,582 @@
- + /* Copyright (C) 2003, 2004 Red Hat, Inc.
- + Contributed by Alexandre Oliva <[email protected]>
- +
- +This file is part of uClibc.
- +
- +uClibc is free software; you can redistribute it and/or modify it
- +under the terms of the GNU Lesser General Public License as
- +published by the Free Software Foundation; either version 2.1 of the
- +License, or (at your option) any later version.
- +
- +uClibc is distributed in the hope that it will be useful, but WITHOUT
- +ANY WARRANTY; without even the implied warranty of
- +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- +Library General Public License for more details.
- +
- +You should have received a copy of the GNU Lesser General Public
- +License along with uClibc; see the file COPYING.LIB. If not, write to
- +the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
- +USA. */
- +
- +//#include <bfin_sram.h>
- +#define SRAM_TEST(x) 0
- +#ifndef _dl_assert
- +# define _dl_assert(expr)
- +#endif
- +
- +/* Initialize a DL_LOADADDR_TYPE given a got pointer and a complete
- + load map. */
- +static __always_inline void
- +__dl_init_loadaddr_map (struct elf32_fdpic_loadaddr *loadaddr, Elf32_Addr dl_boot_got_pointer,
- + struct elf32_fdpic_loadmap *map)
- +{
- + if (map->version != 0)
- + {
- + SEND_EARLY_STDERR ("Invalid loadmap version number\n");
- + _dl_exit(-1);
- + }
- + if (map->nsegs == 0)
- + {
- + SEND_EARLY_STDERR ("Invalid segment count in loadmap\n");
- + _dl_exit(-1);
- + }
- + loadaddr->got_value = (void*)dl_boot_got_pointer;
- + loadaddr->map = map;
- +}
- +
- +/* Figure out how many LOAD segments there are in the given headers,
- + and allocate a block for the load map big enough for them.
- + got_value will be properly initialized later on, with INIT_GOT. */
- +static __always_inline int
- +__dl_init_loadaddr (struct elf32_fdpic_loadaddr *loadaddr, Elf32_Phdr *ppnt,
- + int pcnt)
- +{
- + int count = 0, i;
- + size_t size;
- +
- + for (i = 0; i < pcnt; i++)
- + if (ppnt[i].p_type == PT_LOAD)
- + count++;
- +
- + loadaddr->got_value = 0;
- +
- + size = sizeof (struct elf32_fdpic_loadmap)
- + + sizeof (struct elf32_fdpic_loadseg) * count;
- + loadaddr->map = _dl_malloc (size);
- + if (! loadaddr->map)
- + _dl_exit (-1);
- +
- + loadaddr->map->version = 0;
- + loadaddr->map->nsegs = 0;
- +
- + return count;
- +}
- +
- +#if defined (__SUPPORT_LD_DEBUG__)
- +extern char *_dl_debug;
- +extern int _dl_debug_file;
- +#endif
- +
- +/* Incrementally initialize a load map. */
- +static __always_inline void
- +__dl_init_loadaddr_hdr (struct elf32_fdpic_loadaddr loadaddr, void *addr,
- + Elf32_Phdr *phdr, int maxsegs)
- +{
- + struct elf32_fdpic_loadseg *segdata;
- +
- + if (loadaddr.map->nsegs == maxsegs)
- + _dl_exit (-1);
- +
- + segdata = &loadaddr.map->segs[loadaddr.map->nsegs++];
- + segdata->addr = (Elf32_Addr) addr;
- + segdata->p_vaddr = phdr->p_vaddr;
- + segdata->p_memsz = phdr->p_memsz;
- +
- +#if defined (__SUPPORT_LD_DEBUG__)
- + {
- + if (_dl_debug)
- + _dl_dprintf(_dl_debug_file, "%i: mapped %x at %x, size %x\n",
- + loadaddr.map->nsegs-1,
- + segdata->p_vaddr, segdata->addr, segdata->p_memsz);
- + }
- +#endif
- +}
- +
- +static __always_inline void __dl_loadaddr_unmap
- +(struct elf32_fdpic_loadaddr loadaddr, struct funcdesc_ht *funcdesc_ht);
- +
- +/* Figure out whether the given address is in one of the mapped
- + segments. */
- +static __always_inline int
- +__dl_addr_in_loadaddr (void *p, struct elf32_fdpic_loadaddr loadaddr)
- +{
- + struct elf32_fdpic_loadmap *map = loadaddr.map;
- + int c;
- +
- + for (c = 0; c < map->nsegs; c++)
- + if ((void*)map->segs[c].addr <= p
- + && (char*)p < (char*)map->segs[c].addr + map->segs[c].p_memsz)
- + return 1;
- +
- + return 0;
- +}
- +
- +static __always_inline void * _dl_funcdesc_for (void *entry_point, void *got_value);
- +
- +/* The hashcode handling code below is heavily inspired in libiberty's
- + hashtab code, but with most adaptation points and support for
- + deleting elements removed.
- +
- + Copyright (C) 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
- + Contributed by Vladimir Makarov ([email protected]). */
- +
- +static __always_inline unsigned long
- +higher_prime_number (unsigned long n)
- +{
- + /* These are primes that are near, but slightly smaller than, a
- + power of two. */
- + static const unsigned long primes[] = {
- + (unsigned long) 7,
- + (unsigned long) 13,
- + (unsigned long) 31,
- + (unsigned long) 61,
- + (unsigned long) 127,
- + (unsigned long) 251,
- + (unsigned long) 509,
- + (unsigned long) 1021,
- + (unsigned long) 2039,
- + (unsigned long) 4093,
- + (unsigned long) 8191,
- + (unsigned long) 16381,
- + (unsigned long) 32749,
- + (unsigned long) 65521,
- + (unsigned long) 131071,
- + (unsigned long) 262139,
- + (unsigned long) 524287,
- + (unsigned long) 1048573,
- + (unsigned long) 2097143,
- + (unsigned long) 4194301,
- + (unsigned long) 8388593,
- + (unsigned long) 16777213,
- + (unsigned long) 33554393,
- + (unsigned long) 67108859,
- + (unsigned long) 134217689,
- + (unsigned long) 268435399,
- + (unsigned long) 536870909,
- + (unsigned long) 1073741789,
- + (unsigned long) 2147483647,
- + /* 4294967291L */
- + ((unsigned long) 2147483647) + ((unsigned long) 2147483644),
- + };
- +
- + const unsigned long *low = &primes[0];
- + const unsigned long *high = &primes[sizeof(primes) / sizeof(primes[0])];
- +
- + while (low != high)
- + {
- + const unsigned long *mid = low + (high - low) / 2;
- + if (n > *mid)
- + low = mid + 1;
- + else
- + high = mid;
- + }
- +
- +#if 0
- + /* If we've run out of primes, abort. */
- + if (n > *low)
- + {
- + fprintf (stderr, "Cannot find prime bigger than %lu\n", n);
- + abort ();
- + }
- +#endif
- +
- + return *low;
- +}
- +
- +struct funcdesc_ht
- +{
- + /* Table itself. */
- + struct funcdesc_value **entries;
- +
- + /* Current size (in entries) of the hash table */
- + size_t size;
- +
- + /* Current number of elements. */
- + size_t n_elements;
- +};
- +
- +static __always_inline int
- +hash_pointer (const void *p)
- +{
- + return (int) ((long)p >> 3);
- +}
- +
- +static __always_inline struct funcdesc_ht *
- +htab_create (void)
- +{
- + struct funcdesc_ht *ht = _dl_malloc (sizeof (struct funcdesc_ht));
- +
- + if (! ht)
- + return NULL;
- + ht->size = 3;
- + ht->entries = _dl_malloc (sizeof (struct funcdesc_ht_value *) * ht->size);
- + if (! ht->entries)
- + return NULL;
- +
- + ht->n_elements = 0;
- +
- + _dl_memset (ht->entries, 0, sizeof (struct funcdesc_ht_value *) * ht->size);
- +
- + return ht;
- +}
- +
- +/* This is only called from _dl_loadaddr_unmap, so it's safe to call
- + _dl_free(). See the discussion below. */
- +static __always_inline void
- +htab_delete (struct funcdesc_ht *htab)
- +{
- + int i;
- +
- + for (i = htab->size - 1; i >= 0; i--)
- + if (htab->entries[i])
- + _dl_free (htab->entries[i]);
- +
- + _dl_free (htab->entries);
- + _dl_free (htab);
- +}
- +
- +/* Similar to htab_find_slot, but without several unwanted side effects:
- + - Does not call htab->eq_f when it finds an existing entry.
- + - Does not change the count of elements/searches/collisions in the
- + hash table.
- + This function also assumes there are no deleted entries in the table.
- + HASH is the hash value for the element to be inserted. */
- +
- +static __always_inline struct funcdesc_value **
- +find_empty_slot_for_expand (struct funcdesc_ht *htab, int hash)
- +{
- + size_t size = htab->size;
- + unsigned int index = hash % size;
- + struct funcdesc_value **slot = htab->entries + index;
- + int hash2;
- +
- + if (! *slot)
- + return slot;
- +
- + hash2 = 1 + hash % (size - 2);
- + for (;;)
- + {
- + index += hash2;
- + if (index >= size)
- + index -= size;
- +
- + slot = htab->entries + index;
- + if (! *slot)
- + return slot;
- + }
- +}
- +
- +/* The following function changes size of memory allocated for the
- + entries and repeatedly inserts the table elements. The occupancy
- + of the table after the call will be about 50%. Naturally the hash
- + table must already exist. Remember also that the place of the
- + table entries is changed. If memory allocation failures are allowed,
- + this function will return zero, indicating that the table could not be
- + expanded. If all goes well, it will return a non-zero value. */
- +
- +static __always_inline int
- +htab_expand (struct funcdesc_ht *htab)
- +{
- + struct funcdesc_value **oentries;
- + struct funcdesc_value **olimit;
- + struct funcdesc_value **p;
- + struct funcdesc_value **nentries;
- + size_t nsize;
- +
- + oentries = htab->entries;
- + olimit = oentries + htab->size;
- +
- + /* Resize only when table after removal of unused elements is either
- + too full or too empty. */
- + if (htab->n_elements * 2 > htab->size)
- + nsize = higher_prime_number (htab->n_elements * 2);
- + else
- + nsize = htab->size;
- +
- + nentries = _dl_malloc (sizeof (struct funcdesc_value *) * nsize);
- + _dl_memset (nentries, 0, sizeof (struct funcdesc_value *) * nsize);
- + if (nentries == NULL)
- + return 0;
- + htab->entries = nentries;
- + htab->size = nsize;
- +
- + p = oentries;
- + do
- + {
- + if (*p)
- + *find_empty_slot_for_expand (htab, hash_pointer ((*p)->entry_point))
- + = *p;
- +
- + p++;
- + }
- + while (p < olimit);
- +
- +#if 0 /* We can't tell whether this was allocated by the _dl_malloc()
- + built into ld.so or malloc() in the main executable or libc,
- + and calling free() for something that wasn't malloc()ed could
- + do Very Bad Things (TM). Take the conservative approach
- + here, potentially wasting as much memory as actually used by
- + the hash table, even if multiple growths occur. That's not
- + so bad as to require some overengineered solution that would
- + enable us to keep track of how it was allocated. */
- + _dl_free (oentries);
- +#endif
- + return 1;
- +}
- +
- +/* This function searches for a hash table slot containing an entry
- + equal to the given element. To delete an entry, call this with
- + INSERT = 0, then call htab_clear_slot on the slot returned (possibly
- + after doing some checks). To insert an entry, call this with
- + INSERT = 1, then write the value you want into the returned slot.
- + When inserting an entry, NULL may be returned if memory allocation
- + fails. */
- +
- +static __always_inline struct funcdesc_value **
- +htab_find_slot (struct funcdesc_ht *htab, void *ptr, int insert)
- +{
- + unsigned int index;
- + int hash, hash2;
- + size_t size;
- + struct funcdesc_value **entry;
- +
- + if (htab->size * 3 <= htab->n_elements * 4
- + && htab_expand (htab) == 0)
- + return NULL;
- +
- + hash = hash_pointer (ptr);
- +
- + size = htab->size;
- + index = hash % size;
- +
- + entry = &htab->entries[index];
- + if (!*entry)
- + goto empty_entry;
- + else if ((*entry)->entry_point == ptr)
- + return entry;
- +
- + hash2 = 1 + hash % (size - 2);
- + for (;;)
- + {
- + index += hash2;
- + if (index >= size)
- + index -= size;
- +
- + entry = &htab->entries[index];
- + if (!*entry)
- + goto empty_entry;
- + else if ((*entry)->entry_point == ptr)
- + return entry;
- + }
- +
- + empty_entry:
- + if (!insert)
- + return NULL;
- +
- + htab->n_elements++;
- + return entry;
- +}
- +
- +void *
- +_dl_funcdesc_for (void *entry_point, void *got_value)
- +{
- + struct elf_resolve *tpnt = ((void**)got_value)[2];
- + struct funcdesc_ht *ht = tpnt->funcdesc_ht;
- + struct funcdesc_value **entry;
- +
- + _dl_assert (got_value == tpnt->loadaddr.got_value);
- +
- + if (! ht)
- + {
- + ht = htab_create ();
- + if (! ht)
- + return (void*)-1;
- + tpnt->funcdesc_ht = ht;
- + }
- +
- + entry = htab_find_slot (ht, entry_point, 1);
- + if (*entry)
- + {
- + _dl_assert ((*entry)->entry_point == entry_point);
- + return _dl_stabilize_funcdesc (*entry);
- + }
- +
- + *entry = _dl_malloc (sizeof (struct funcdesc_value));
- + (*entry)->entry_point = entry_point;
- + (*entry)->got_value = got_value;
- +
- + return _dl_stabilize_funcdesc (*entry);
- +}
- +
- +static __always_inline void const *
- +_dl_lookup_address (void const *address)
- +{
- + struct elf_resolve *rpnt;
- + struct funcdesc_value const *fd;
- +
- + /* Make sure we don't make assumptions about its alignment. */
- + __asm__ ("" : "+r" (address));
- +
- + if ((Elf32_Addr)address & 7)
- + /* It's not a function descriptor. */
- + return address;
- +
- + fd = (struct funcdesc_value const *)address;
- +
- + for (rpnt = _dl_loaded_modules; rpnt; rpnt = rpnt->next)
- + {
- + if (! rpnt->funcdesc_ht)
- + continue;
- +
- + if (fd->got_value != rpnt->loadaddr.got_value)
- + continue;
- +
- + address = htab_find_slot (rpnt->funcdesc_ht, (void*)fd->entry_point, 0);
- +
- + if (address && *(struct funcdesc_value *const*)address == fd)
- + {
- + address = (*(struct funcdesc_value *const*)address)->entry_point;
- + break;
- + }
- + else
- + address = fd;
- + }
- +
- + return address;
- +}
- +
- +void
- +__dl_loadaddr_unmap (struct elf32_fdpic_loadaddr loadaddr,
- + struct funcdesc_ht *funcdesc_ht)
- +{
- + int i;
- +
- + for (i = 0; i < loadaddr.map->nsegs; i++)
- + {
- + struct elf32_fdpic_loadseg *segdata;
- + ssize_t offs;
- + segdata = loadaddr.map->segs + i;
- +
- +#if 0 /* SRAM */
- + /* FIXME:
- + A more cleaner way is to add type for struct elf32_fdpic_loadseg,
- + and release the memory according to the type.
- + Currently, we hardcode the memory address of L1 SRAM. */
- + if ((segdata->addr & 0xff800000) == 0xff800000)
- + {
- + _dl_sram_free ((void *)segdata->addr);
- + continue;
- + }
- +#endif
- + offs = (segdata->p_vaddr & ADDR_ALIGN);
- + _dl_munmap ((void*)segdata->addr - offs,
- + segdata->p_memsz + offs);
- + }
- + /* _dl_unmap is only called for dlopen()ed libraries, for which
- + calling free() is safe, or before we've completed the initial
- + relocation, in which case calling free() is probably pointless,
- + but still safe. */
- + _dl_free (loadaddr.map);
- + if (funcdesc_ht)
- + htab_delete (funcdesc_ht);
- +}
- +
- +#if 0 /* XXX TODO will look at enabling this if we decide to add support for OCM
- + * code/data */
- +// OLD BLACKFIN CODE
- +static __always_inline int
- +__dl_is_special_segment (Elf32_Ehdr *epnt,
- + Elf32_Phdr *ppnt)
- +{
- + if (ppnt->p_type != PT_LOAD)
- + return 0;
- +
- + if ((epnt->e_flags & EF_BFIN_CODE_IN_L1)
- + && !(ppnt->p_flags & PF_W)
- + && (ppnt->p_flags & PF_X))
- + return 1;
- +
- + if ((epnt->e_flags & EF_BFIN_DATA_IN_L1)
- + && (ppnt->p_flags & PF_W)
- + && !(ppnt->p_flags & PF_X))
- + return 1;
- +
- + /* 0xff700000, 0xff800000, 0xff900000 and 0xffa00000 are also used in
- + GNU ld and linux kernel. They need to be keep synchronized. */
- + if (ppnt->p_vaddr == 0xff700000
- + || ppnt->p_vaddr == 0xff800000
- + || ppnt->p_vaddr == 0xff900000
- + || ppnt->p_vaddr == 0xffa00000)
- + return 1;
- +
- + return 0;
- +}
- +
- +static __always_inline char *
- +__dl_map_segment (Elf32_Ehdr *epnt,
- + Elf32_Phdr *ppnt,
- + int infile,
- + int flags)
- +{
- + char *status, *tryaddr, *l1addr;
- + size_t size;
- +
- +
- + if (((epnt->e_flags & EF_BFIN_CODE_IN_L1) || ppnt->p_vaddr == 0xffa00000)
- + && !(ppnt->p_flags & PF_W)
- + && (ppnt->p_flags & PF_X)) {
- + status = (char *) _dl_mmap
- + (tryaddr = 0,
- + size = (ppnt->p_vaddr & ADDR_ALIGN) + ppnt->p_filesz,
- + LXFLAGS(ppnt->p_flags),
- + flags | MAP_EXECUTABLE | MAP_DENYWRITE,
- + infile, ppnt->p_offset & OFFS_ALIGN);
- + if (_dl_mmap_check_error(status)
- + || (tryaddr && tryaddr != status))
- + return NULL;
- + l1addr = (char *) _dl_sram_alloc (ppnt->p_filesz, L1_INST_SRAM);
- + if (l1addr != NULL)
- + _dl_dma_memcpy (l1addr, status + (ppnt->p_vaddr & ADDR_ALIGN), ppnt->p_filesz);
- + _dl_munmap (status, size);
- + if (l1addr == NULL)
- + _dl_dprintf(2, "%s:%i: L1 allocation failed\n", _dl_progname, __LINE__);
- + return l1addr;
- + }
- +
- + if (((epnt->e_flags & EF_BFIN_DATA_IN_L1)
- + || ppnt->p_vaddr == 0xff700000
- + || ppnt->p_vaddr == 0xff800000
- + || ppnt->p_vaddr == 0xff900000)
- + && (ppnt->p_flags & PF_W)
- + && !(ppnt->p_flags & PF_X)) {
- + if (ppnt->p_vaddr == 0xff800000)
- + l1addr = (char *) _dl_sram_alloc (ppnt->p_memsz, L1_DATA_A_SRAM);
- + else if (ppnt->p_vaddr == 0xff900000)
- + l1addr = (char *) _dl_sram_alloc (ppnt->p_memsz, L1_DATA_B_SRAM);
- + else
- + l1addr = (char *) _dl_sram_alloc (ppnt->p_memsz, L1_DATA_SRAM);
- + if (l1addr == NULL) {
- + _dl_dprintf(2, "%s:%i: L1 allocation failed\n", _dl_progname, __LINE__);
- + } else {
- + if (_DL_PREAD (infile, l1addr, ppnt->p_filesz, ppnt->p_offset) != ppnt->p_filesz) {
- + _dl_sram_free (l1addr);
- + return NULL;
- + }
- + if (ppnt->p_filesz < ppnt->p_memsz)
- + _dl_memset (l1addr + ppnt->p_filesz, 0, ppnt->p_memsz - ppnt->p_filesz);
- + }
- + return l1addr;
- + }
- + return 0;
- +}
- +#endif
- --- /dev/null
- +++ b/ldso/ldso/ubicom32/dl-startup.h
- @@ -0,0 +1,232 @@
- +/*
- + Copyright (C) 2009 Ubicom, Inc.
- + Copyright (C) 2003 Red Hat, Inc.
- + Contributed by Alexandre Oliva <[email protected]>
- +
- +This file is part of uClibc.
- +
- +uClibc is free software; you can redistribute it and/or modify it
- +under the terms of the GNU Lesser General Public License as
- +published by the Free Software Foundation; either version 2.1 of the
- +License, or (at your option) any later version.
- +
- +uClibc is distributed in the hope that it will be useful, but WITHOUT
- +ANY WARRANTY; without even the implied warranty of
- +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- +Library General Public License for more details.
- +
- +You should have received a copy of the GNU Lesser General Public
- +License along with uClibc; see the file COPYING.LIB. If not, write to
- +the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
- +USA. */
- +
- +/* Any assembly language/system dependent hacks needed to setup
- + * boot1.c so it will work as expected and cope with whatever platform
- + * specific wierdness is needed for this architecture.
- +
- + * We override the default _dl_boot function, and replace it with a
- + * bit of asm. Then call the real _dl_boot function, which is now
- + * named _dl_boot2. */
- +
- +/* At program start-up, p0 contains a pointer to a
- + elf32_fdpic_loadmap that describes how the executable was loaded
- + into memory. p1 contains a pointer to the interpreter (our!)
- + loadmap, if there is an interpreter, or 0 if we're being run as an
- + executable. p2 holds a pointer to the interpreter's dynamic
- + section, if there is an interpreter, or to the executable's dynamic
- + section, otherwise. If the executable is not dynamic, gr18 is 0.
- +
- + We rely on the fact that the linker adds a pointer to the
- + _GLOBAL_OFFSET_TABLE_ as the last ROFIXUP entry, and that
- + __self_reloc returns the relocated pointer to us, so that we can
- + use this value to initialize the PIC register. */
- +
- +
- +/*
- + * _dl_boot is the entry point for ldso.
- + *
- + * The kernel leaves the main apps args on the stack (positive offsets), and
- + * communicates the load maps as follows
- + *
- + * - d1 is set to the exec_map_addr (struct elf32_fdpic_loadmap *), which is the
- + * current state of the mapped application.
- + *
- + * - d2 is set to interp_map_addr (struct elf32_fdpic_loadmap *), which is use
- + * by ldso to relocate itself.
- + *
- + * - d3 is dynamic_addr which as far as I can tell is the stack pointer.
- + *
- + * - a1 is set to zero and will later be initialised to ldso _dl_fini funcdesc
- + */
- +
- +__asm__(
- + " .text \n\t"
- + " .global _start \n\t"
- + " .type _start,@function \n\t"
- + "_start:\n\t"
- + /*
- + * Jump to .Lcall storing the location .Lcall in a5
- + */
- + " call a5, .Lcall \n\t"
- + ".Lcall: \n\t"
- + /*
- + * Reserve and Push inputs to stack.
- + * 32 byte stack layout as follows
- + * offset 0 exec_map_addr
- + * 4 interp_map_addr
- + * 8 dynamic_addr
- + * 12 not used
- + * 16 dl_main_funcdesc structure for _dl_boot
- + * (12 bytes sizeof funcdesc_value)
- + * 28 reserved
- + * 32 start of &original stack
- + */
- + " pdec sp, 32(sp); reserve stack space \n\t"
- + " move.4 0(sp), d1 ; exec_map_addr \n\t"
- + " move.4 4(sp), d2 ; interp_map_addr \n\t"
- + " move.4 8(sp), d3; dynamic_addr \n\t"
- +
- + /*
- + * Load linker version of .Lcall in to d0
- + */
- + " moveai a3, #%hi(.Lcall) \n\t"
- + " lea.1 d0, %lo(.Lcall)(a3) \n\t"
- +
- + /*
- + * Determine the offset from loaded .Lcall and put it in d0.
- + */
- + " sub.4 d0, a5, d0 \n\t"
- +
- + /*
- + * Load linker version of __ROFIXUP_LIST__ and __ROFIXUP_END__ in to d1
- + * and d2.
- + */
- + " moveai a3, #%hi(__ROFIXUP_LIST__) \n\t"
- + " lea.1 d1, %lo(__ROFIXUP_LIST__)(a3) \n\t"
- + " moveai a3, #%hi(__ROFIXUP_END__) \n\t"
- + " lea.1 d2, %lo(__ROFIXUP_END__)(a3) \n\t"
- + /*
- + * Use offset determined above to find the loaded versions.
- + */
- + " add.4 d1, d1, d0 \n\t"
- + " add.4 d2, d2, d0 \n\t"
- +
- + /*
- + * Load interp_map_addr into d0, if interp_map_addr is null use
- + * exec_map_addr.
- + */
- + " move.4 d0, 4(sp) ; load interp_map_addr \n\t"
- + " cmpi d0, #0 \n\t"
- + " jmpne.f 1f \n\t"
- + " move.4 d0, 0(sp) ; load exec_map_addr \n\t"
- +
- + /*
- + * call __self_reloc(map, void ***p, void ***e)
- + * it returns the the GOT in d0.
- + */
- + "1: call a5, __self_reloc ; returns a0 in d0 \n\t"
- + " move.4 a0, d0 ; set GOT \n\t"
- + " move.4 a2, d0 ; save GOT \n\t"
- +
- + /*
- + * now setup to call
- + * _dl_start (Elf32_Addr dl_boot_got_pointer, (d0)
- + * struct elf32_fdpic_loadmap *dl_boot_progmap, (d1)
- + * struct elf32_fdpic_loadmap *dl_boot_ldsomap, (d2)
- + * Elf32_Dyn *dl_boot_ldso_dyn_pointer, (d3)
- + * struct funcdesc_value *dl_main_funcdesc, (d4)
- + * unsigned long args (d5)
- + *
- + * NOTE: for dl_main_funcdesc we reserved space on the stack for this
- + * structure.
- + */
- + " move.4 d1, 0(sp) ; d1 = exec_map_addr \n\t"
- + " move.4 d2, 4(sp) ; d2 = interp_map_addr \n\t"
- + " move.4 d3, 8(sp) ; d3 = dynamic_addr \n\t"
- + " lea.1 d4, 16(sp) ; d4 = &dl_main_funcdesc \n\t"
- + " lea.1 d5, 32(sp) ; d5 = original stack ptr (args)\n\t"
- + " call a5, _dl_start \n\t"
- +
- + /*
- + * Setup to call the main entry point, starting with passing our FINI
- + * ptr() to the user in a1 (remember we saved the got in a2)
- + */
- + " movei d15, #%got_funcdesc_lo(_dl_fini) \n\t"
- + " move.4 a1, (a2, d15) \n\t"
- +
- + /*
- + * restore the load map from the kernel.
- + */
- + " move.4 d1, 0(sp) ; restore exec_map_addr \n\t"
- + " move.4 d2, 4(sp) ; restore interp_map_addr \n\t"
- + " move.4 d3, 8(sp) ; restore dynamic_addr \n\t"
- +
- + /*
- + * _dl_start returned the main apps entry point in dl_main_funcdesc,
- + * load that information now.
- + */
- + " move.4 a5, 16(sp) ; a5 = dl_main_funcdesc.entry_point \n\t"
- + " move.4 a0, 20(sp) ; a0 = dl_main_funcdesc.got_value \n\t"
- + " lea.1 sp, 32(sp); restore original stack ptr (args) \n\t"
- + " calli a5, 0(a5) \n\t"
- + " bkpt -1; should never get here \n\t"
- + " .size _start, . - _start \n\t"
- +);
- +
- +#undef DL_START
- +#define DL_START(X) \
- +static void __attribute__ ((used)) \
- +_dl_start (Elf32_Addr dl_boot_got_pointer, \
- + struct elf32_fdpic_loadmap *dl_boot_progmap, \
- + struct elf32_fdpic_loadmap *dl_boot_ldsomap, \
- + Elf32_Dyn *dl_boot_ldso_dyn_pointer, \
- + struct funcdesc_value *dl_main_funcdesc, \
- + X)
- +
- +struct elf32_fdpic_loadmap;
- +
- +/*
- + * Get a pointer to the argv array. On many platforms this can be just
- + * the address if the first argument, on other platforms we need to
- + * do something a little more subtle here.
- + */
- +#define GET_ARGV(ARGVP, ARGS) ARGVP = (((unsigned long*) ARGS) + 1)
- +
- +/*
- + * Here is a macro to perform a relocation. This is only used when
- + * bootstrapping the dynamic loader. RELP is the relocation that we
- + * are performing, REL is the pointer to the address we are relocating.
- + * SYMBOL is the symbol involved in the relocation, and LOAD is the
- + * load address.
- + */
- +#define PERFORM_BOOTSTRAP_RELOC(RELP,REL,SYMBOL,LOAD,SYMTAB) \
- + switch(ELF32_R_TYPE((RELP)->r_info)){ \
- + case R_UBICOM32_32: \
- + *(REL) += (SYMBOL); \
- + break; \
- + case R_UBICOM32_FUNCDESC_VALUE: \
- + { \
- + struct funcdesc_value fv = { \
- + (void*)((SYMBOL) + *(REL)), \
- + (LOAD).got_value \
- + }; \
- + *(struct funcdesc_value volatile *)(REL) = fv; \
- + break; \
- + } \
- + default: \
- + _dl_exit(1); \
- + }
- +
- +/*
- + * Transfer control to the user's application, once the dynamic loader
- + * is done. We return the address of the function's entry point to
- + * _dl_boot, see boot1_arch.h.
- + */
- +#define START() do { \
- + struct elf_resolve *exec_mod = _dl_loaded_modules; \
- + dl_main_funcdesc->entry_point = _dl_elf_main; \
- + while (exec_mod->libtype != elf_executable) \
- + exec_mod = exec_mod->next; \
- + dl_main_funcdesc->got_value = exec_mod->loadaddr.got_value; \
- + return; \
- +} while (0)
- --- /dev/null
- +++ b/ldso/ldso/ubicom32/dl-syscalls.h
- @@ -0,0 +1,206 @@
- +/* Copyright (C) 2003, 2004 Red Hat, Inc.
- + Contributed by Alexandre Oliva <[email protected]>
- +
- +This file is part of uClibc.
- +
- +uClibc is free software; you can redistribute it and/or modify it
- +under the terms of the GNU Lesser General Public License as
- +published by the Free Software Foundation; either version 2.1 of the
- +License, or (at your option) any later version.
- +
- +uClibc is distributed in the hope that it will be useful, but WITHOUT
- +ANY WARRANTY; without even the implied warranty of
- +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- +Library General Public License for more details.
- +
- +You should have received a copy of the GNU Lesser General Public
- +License along with uClibc; see the file COPYING.LIB. If not, write to
- +the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
- +USA. */
- +
- +/* We can't use the real errno in ldso, since it has not yet
- + * been dynamicly linked in yet. */
- +#include "sys/syscall.h"
- +extern int _dl_errno;
- +#undef __set_errno
- +#define __set_errno(X) {(_dl_errno) = (X);}
- +#include <sys/mman.h>
- +
- +/* The code below is extracted from libc/sysdeps/linux/frv/_mmap.c */
- +
- +#if defined(DYNAMIC_LOADER_IN_SIMULATOR) && DYNAMIC_LOADER_IN_SIMULATOR
- +#define __NR___syscall_mmap2 __NR_mmap2
- +static __inline__ _syscall6(__ptr_t, __syscall_mmap2, __ptr_t, addr,
- + size_t, len, int, prot, int, flags, int, fd, off_t, offset);
- +
- +/* Make sure we don't get another definition of _dl_mmap from the
- + machine-independent code. */
- +#undef __NR_mmap
- +#undef __NR_mmap2
- +
- +/* This is always 12, even on architectures where PAGE_SHIFT != 12. */
- +# ifndef MMAP2_PAGE_SHIFT
- +# define MMAP2_PAGE_SHIFT 12
- +# endif
- +
- +#include <bits/uClibc_page.h> /* for PAGE_SIZE */
- +static __always_inline void *_dl_memset(void*,int,size_t);
- +static __always_inline ssize_t _dl_pread(int fd, void *buf, size_t count, off_t offset);
- +
- +static __ptr_t
- +_dl_mmap(__ptr_t addr, size_t len, int prot, int flags, int fd, __off_t offset)
- +{
- + size_t plen = (len + PAGE_SIZE - 1) & -PAGE_SIZE;
- +
- +/* This is a hack to enable the dynamic loader to run within a
- + simulator that doesn't support mmap, with a number of very ugly
- + tricks. Also, it's not as useful as it sounds, since only dynamic
- + executables without DT_NEEDED dependencies can be run. AFAIK, they
- + can only be created with -pie. This trick suffices to enable the
- + dynamic loader to obtain a blank page that it maps early in the
- + bootstrap. */
- + if ((flags & MAP_FIXED) == 0)
- + {
- + void *_dl_mmap_base = 0;
- + __ptr_t *ret = 0;
- +
- + if (! _dl_mmap_base)
- + {
- + void *stack;
- + __asm__ ("mov sp, %0" : "=r" (stack));
- + _dl_mmap_base = (void *)(((long)stack + 2 * PAGE_SIZE) & -PAGE_SIZE);
- + retry:
- + if (((void **)_dl_mmap_base)[0] == _dl_mmap_base
- + && ((void **)_dl_mmap_base)[1023] == _dl_mmap_base
- + && (((void **)_dl_mmap_base)[177]
- + == ((void **)_dl_mmap_base)[771]))
- + {
- + while (((void**)_dl_mmap_base)[177])
- + {
- + _dl_mmap_base = ((void**)_dl_mmap_base)[177];
- + if (!(((void **)_dl_mmap_base)[0] == _dl_mmap_base
- + && ((void **)_dl_mmap_base)[1023] == _dl_mmap_base
- + && (((void **)_dl_mmap_base)[177]
- + == ((void**)_dl_mmap_base)[771])))
- + ((void(*)())0)();
- + }
- + }
- + else
- + {
- + int i;
- + for (i = 0; i < (int)PAGE_SIZE; i++)
- + if (*(char*)(_dl_mmap_base + i))
- + break;
- + if (i != PAGE_SIZE)
- + {
- + _dl_mmap_base = (void*)((long)_dl_mmap_base + PAGE_SIZE);
- + goto retry;
- + }
- + ((void**)_dl_mmap_base)[-1] =
- + ((void**)_dl_mmap_base)[0] =
- + ((void**)_dl_mmap_base)[1023] =
- + _dl_mmap_base;
- + }
- + }
- +
- + if (_dl_mmap_base)
- + {
- + if (!(((void **)_dl_mmap_base)[0] == _dl_mmap_base
- + && ((void **)_dl_mmap_base)[1023] == _dl_mmap_base
- + && (((void **)_dl_mmap_base)[177]
- + == ((void**)_dl_mmap_base)[771])))
- + ((void(*)())0)();
- + ret = (__ptr_t)((char*)_dl_mmap_base + PAGE_SIZE);
- + _dl_mmap_base =
- + ((void**)_dl_mmap_base)[177] =
- + ((void**)_dl_mmap_base)[771] =
- + (char*)_dl_mmap_base + plen + PAGE_SIZE;
- + ((void**)_dl_mmap_base)[0] =
- + ((void**)_dl_mmap_base)[1023] =
- + _dl_mmap_base;
- + }
- +
- + if ((flags & MAP_ANONYMOUS) != 0)
- + {
- + _dl_memset (ret, 0, plen);
- + return ret;
- + }
- +
- + flags |= MAP_FIXED;
- + addr = ret;
- + }
- + if (offset & ((1 << MMAP2_PAGE_SHIFT) - 1)) {
- +#if 0
- + __set_errno (EINVAL);
- +#endif
- + return MAP_FAILED;
- + }
- + if ((flags & MAP_FIXED) != 0)
- + {
- + if (_dl_pread(fd, addr, len, offset) != (ssize_t)len)
- + return (void*)MAP_FAILED;
- + if (plen != len)
- + _dl_memset (addr + len, 0, plen - len);
- + return addr;
- + }
- + return(__syscall_mmap2(addr, len, prot, flags, fd, (off_t) (offset >> MMAP2_PAGE_SHIFT)));
- +}
- +#endif
- +
- +#ifdef __NR_pread64
- +#ifdef DYNAMIC_LOADER_IN_SIMULATOR
- +#include <unistd.h>
- +
- +#define __NR___syscall_lseek __NR_lseek
- +static __always_inline unsigned long _dl_read(int fd, const void *buf, unsigned long count);
- +
- +static __always_inline _syscall3(__off_t, __syscall_lseek, int, fd, __off_t, offset,
- + int, whence);
- +static __always_inline ssize_t
- +_dl_pread(int fd, void *buf, size_t count, off_t offset)
- +{
- + __off_t orig = __syscall_lseek (fd, 0, SEEK_CUR);
- + ssize_t ret;
- +
- + if (orig == -1)
- + return -1;
- +
- + if (__syscall_lseek (fd, offset, SEEK_SET) != offset)
- + return -1;
- +
- + ret = _dl_read (fd, buf, count);
- +
- + if (__syscall_lseek (fd, orig, SEEK_SET) != orig)
- + ((void(*)())0)();
- +
- + return ret;
- +}
- +#else
- +#define __NR___syscall_pread __NR_pread64
- +static __always_inline _syscall5(ssize_t, __syscall_pread, int, fd, void *, buf,
- + size_t, count, off_t, offset_hi, off_t, offset_lo);
- +
- +static __always_inline ssize_t
- +_dl_pread(int fd, void *buf, size_t count, off_t offset)
- +{
- + return(__syscall_pread(fd,buf,count,__LONG_LONG_PAIR (offset >> 31, offset)));
- +}
- +#endif
- +#endif
- +
- +#ifdef __NR_sram_alloc
- +#define __NR__dl_sram_alloc __NR_sram_alloc
- +static __always_inline _syscall2(__ptr_t, _dl_sram_alloc,
- + size_t, len, unsigned long, flags);
- +#endif
- +
- +#ifdef __NR_sram_free
- +#define __NR__dl_sram_free __NR_sram_free
- +static __always_inline _syscall1(int, _dl_sram_free, __ptr_t, addr);
- +#endif
- +
- +#ifdef __NR_dma_memcpy
- +#define __NR__dl_dma_memcpy __NR_dma_memcpy
- +static __always_inline _syscall3(__ptr_t, _dl_dma_memcpy,
- + __ptr_t, dest, __ptr_t, src, size_t, len);
- +#endif
- --- /dev/null
- +++ b/ldso/ldso/ubicom32/dl-sysdep.h
- @@ -0,0 +1,243 @@
- + /* Copyright (C) 2003, 2004 Red Hat, Inc.
- + Contributed by Alexandre Oliva <[email protected]>
- + Based on ../i386/dl-sysdep.h
- +
- +This file is part of uClibc.
- +
- +uClibc is free software; you can redistribute it and/or modify it
- +under the terms of the GNU Lesser General Public License as
- +published by the Free Software Foundation; either version 2.1 of the
- +License, or (at your option) any later version.
- +
- +uClibc is distributed in the hope that it will be useful, but WITHOUT
- +ANY WARRANTY; without even the implied warranty of
- +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- +Library General Public License for more details.
- +
- +You should have received a copy of the GNU Lesser General Public
- +License along with uClibc; see the file COPYING.LIB. If not, write to
- +the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
- +USA. */
- +
- +/*
- + * Various assembly language/system dependent hacks that are required
- + * so that we can minimize the amount of platform specific code.
- + */
- +
- +/*
- + * Define this if the system uses RELOCA.
- + */
- +#undef ELF_USES_RELOCA
- +
- +/* JMPREL relocs are inside the DT_RELA table. */
- +#define ELF_MACHINE_PLTREL_OVERLAP
- +
- +#define DL_NO_COPY_RELOCS
- +
- +#define HAVE_DL_INLINES_H
- +
- +/*
- + * Initialization sequence for a GOT. Copy the resolver function
- + * descriptor and the pointer to the elf_resolve/link_map data
- + * structure. Initialize the got_value in the module while at that.
- + */
- +#define INIT_GOT(GOT_BASE,MODULE) \
- +{ \
- + (MODULE)->loadaddr.got_value = (GOT_BASE); \
- + GOT_BASE[0] = ((unsigned long *)&_dl_linux_resolve)[0]; \
- + GOT_BASE[1] = ((unsigned long *)&_dl_linux_resolve)[1]; \
- + GOT_BASE[2] = (unsigned long) MODULE; \
- +}
- +
- +/* Here we define the magic numbers that this dynamic loader should accept */
- +#define MAGIC1 EM_UBICOM32
- +#undef MAGIC2
- +
- +/* Used for error messages */
- +#define ELF_TARGET "UBICOM32"
- +
- +struct elf_resolve;
- +
- +struct funcdesc_value
- +{
- + void *entry_point;
- + void *got_value;
- +/*int relocation; not sure if this required, but it does exist */
- +};
- +
- +extern int _dl_linux_resolve(void) __attribute__((__visibility__("hidden")));
- +extern struct funcdesc_value volatile *__attribute__((__visibility__("hidden")))
- + _dl_linux_resolver (struct elf_resolve *tpnt, int reloc_entry);
- +
- +/* 4KiB page alignment. Should perhaps be made dynamic using
- + getpagesize(), based on AT_PAGESZ from auxvt? */
- +#define PAGE_ALIGN 0xfffff000
- +#define ADDR_ALIGN 0xfff
- +#define OFFS_ALIGN 0x7ffff000
- +
- +struct funcdesc_ht;
- +
- +/*
- + * This asm does a quick relcation of string S (which is stored in the text
- + * section as thats all we can use
- + */
- +#undef SEND_EARLY_STDERR
- +#define SEND_EARLY_STDERR(S) \
- +do { \
- + static const char __attribute__((section(".text"))) __s[] = (S); \
- + const char *__p, *__scratch; \
- + __asm__ ( \
- + " call a3, 1f; \n\t" \
- + "1: movei %0, #%%got_lo(1b) \n\t" \
- + " move.4 %0, (%3, %0) \n\t" \
- + " sub.4 %1, a3, %0; \n\t" \
- + " add.4 %1, %1, %2; \n\t" \
- + : "=&d" (__scratch), "=&d" (__p) \
- + : "d" (__s), "a" (dl_boot_got_pointer) \
- + : "a3", "a4", "d15"); \
- + SEND_STDERR (__p); \
- + { int __t; \
- + for (__t = 0; __t < 0x100000; __t++) __asm__ __volatile__ (""); } \
- +} while (0)
- +
- +#define DL_LOADADDR_TYPE struct elf32_fdpic_loadaddr
- +
- +#define DL_RELOC_ADDR(LOADADDR, ADDR) \
- + ((ElfW(Addr))__reloc_pointer ((void*)(ADDR), (LOADADDR).map))
- +
- +#define DL_ADDR_TO_FUNC_PTR(ADDR, LOADADDR) \
- + ((void(*)(void)) _dl_funcdesc_for ((void*)(ADDR), (LOADADDR).got_value))
- +
- +#define _dl_stabilize_funcdesc(val) \
- + ({ __asm__ ("" : "+m" (*(val))); (val); })
- +
- +#define DL_CALL_FUNC_AT_ADDR(ADDR, LOADADDR, SIGNATURE, ...) \
- + ({ struct funcdesc_value fd = { (void*)(ADDR), (LOADADDR).got_value }; \
- + void (*pf)(void) = (void*) _dl_stabilize_funcdesc (&fd); \
- + (* SIGNATURE pf)(__VA_ARGS__); })
- +
- +#define DL_INIT_LOADADDR_BOOT(LOADADDR, BASEADDR) \
- + (__dl_init_loadaddr_map (&(LOADADDR), dl_boot_got_pointer, \
- + dl_boot_ldsomap ?: dl_boot_progmap))
- +
- +#define DL_INIT_LOADADDR_PROG(LOADADDR, BASEADDR) \
- + (__dl_init_loadaddr_map (&(LOADADDR), 0, dl_boot_progmap))
- +
- +#define DL_INIT_LOADADDR_EXTRA_DECLS \
- + int dl_init_loadaddr_load_count;
- +#define DL_INIT_LOADADDR(LOADADDR, BASEADDR, PHDR, PHDRCNT) \
- + (dl_init_loadaddr_load_count = \
- + __dl_init_loadaddr (&(LOADADDR), (PHDR), (PHDRCNT)))
- +#define DL_INIT_LOADADDR_HDR(LOADADDR, ADDR, PHDR) \
- + (__dl_init_loadaddr_hdr ((LOADADDR), (ADDR), (PHDR), \
- + dl_init_loadaddr_load_count))
- +#define DL_LOADADDR_UNMAP(LOADADDR, LEN) \
- + (__dl_loadaddr_unmap ((LOADADDR), (NULL)))
- +#define DL_LIB_UNMAP(LIB, LEN) \
- + (__dl_loadaddr_unmap ((LIB)->loadaddr, (LIB)->funcdesc_ht))
- +#define DL_LOADADDR_BASE(LOADADDR) \
- + ((LOADADDR).got_value)
- +
- +/* This is called from dladdr(), such that we map a function
- + descriptor's address to the function's entry point before trying to
- + find in which library it's defined. */
- +#define DL_LOOKUP_ADDRESS(ADDRESS) (_dl_lookup_address (ADDRESS))
- +
- +#define DL_ADDR_IN_LOADADDR(ADDR, TPNT, TFROM) \
- + (! (TFROM) && __dl_addr_in_loadaddr ((void*)(ADDR), (TPNT)->loadaddr))
- +
- +/*
- + * Compute the GOT address. On several platforms, we use assembly
- + * here. on FR-V FDPIC, there's no way to compute the GOT address,
- + * since the offset between text and data is not fixed, so we arrange
- + * for the assembly _dl_boot to pass this value as an argument to
- + * _dl_boot. */
- +#define DL_BOOT_COMPUTE_GOT(got) ((got) = dl_boot_got_pointer)
- +
- +#define DL_BOOT_COMPUTE_DYN(dpnt, got, load_addr) \
- + ((dpnt) = dl_boot_ldso_dyn_pointer)
- +
- +/* We only support loading FDPIC independently-relocatable shared
- + libraries. It probably wouldn't be too hard to support loading
- + shared libraries that require relocation by the same amount, but we
- + don't know that they exist or would be useful, and the dynamic
- + loader code could leak the whole-library map unless we keeping a
- + bit more state for DL_LOADADDR_UNMAP and DL_LIB_UNMAP, so let's
- + keep things simple for now. */
- +#define DL_CHECK_LIB_TYPE(epnt, piclib, _dl_progname, libname) \
- +do \
- +{ \
- + if (((epnt)->e_flags & EF_UBICOM32_FDPIC) && ! ((epnt)->e_flags & EF_UBICOM32_PIC)) \
- + (piclib) = 2; \
- + else \
- + { \
- + _dl_internal_error_number = LD_ERROR_NOTDYN; \
- + _dl_dprintf(2, "%s: '%s' is not an FDPIC shared library" \
- + "\n", (_dl_progname), (libname)); \
- + _dl_close(infile); \
- + return NULL; \
- + } \
- +\
- +} \
- +while (0)
- +
- +/* We want want to apply all relocations in the interpreter during
- + bootstrap. Because of this, we have to skip the interpreter
- + relocations in _dl_parse_relocation_information(), see
- + elfinterp.c. */
- +#define DL_SKIP_BOOTSTRAP_RELOC(SYMTAB, INDEX, STRTAB) 0
- +
- +#ifdef __NR_pread64
- +#define _DL_PREAD(FD, BUF, SIZE, OFFSET) \
- + (_dl_pread((FD), (BUF), (SIZE), (OFFSET)))
- +#endif
- +
- +/* We want to return to dlsym() a function descriptor if the symbol
- + turns out to be a function. */
- +#define DL_FIND_HASH_VALUE(TPNT, TYPE_CLASS, SYM) \
- + (((TYPE_CLASS) & ELF_RTYPE_CLASS_DLSYM) \
- + && ELF32_ST_TYPE((SYM)->st_info) == STT_FUNC \
- + ? _dl_funcdesc_for ((void *)DL_RELOC_ADDR ((TPNT)->loadaddr, (SYM)->st_value), \
- + (TPNT)->loadaddr.got_value) \
- + : DL_RELOC_ADDR ((TPNT)->loadaddr, (SYM)->st_value))
- +
- +#if 0 /* XXX TODO will look at enabling this if we decide to add support for OCM
- + * code/data */
- +
- +#define DL_IS_SPECIAL_SEGMENT(EPNT, PPNT) \
- + __dl_is_special_segment(EPNT, PPNT)
- +#define DL_MAP_SEGMENT(EPNT, PPNT, INFILE, FLAGS) \
- + __dl_map_segment (EPNT, PPNT, INFILE, FLAGS)
- +
- +#endif
- +
- +
- +#define DL_GET_READY_TO_RUN_EXTRA_PARMS \
- + , struct elf32_fdpic_loadmap *dl_boot_progmap, Elf32_Addr dl_boot_got_pointer
- +#define DL_GET_READY_TO_RUN_EXTRA_ARGS \
- + , dl_boot_progmap, dl_boot_got_pointer
- +
- +
- +#ifdef __USE_GNU
- +# include <link.h>
- +#else
- +# define __USE_GNU
- +# include <link.h>
- +# undef __USE_GNU
- +#endif
- +
- +#include <elf.h>
- +static __inline__ void
- +elf_machine_relative (DL_LOADADDR_TYPE load_off, const Elf32_Addr rel_addr,
- + Elf32_Word relative_count)
- +{
- +#if 0
- + Elf32_Rel * rpnt = (void *) rel_addr;
- + --rpnt;
- + do {
- + Elf32_Addr *const reloc_addr = (void *) (load_off + (++rpnt)->r_offset);
- +
- + *reloc_addr = DL_RELOC_ADDR (load_off, *reloc_addr);
- + } while (--relative_count);
- +#endif
- +}
- --- /dev/null
- +++ b/ldso/ldso/ubicom32/elfinterp.c
- @@ -0,0 +1,366 @@
- +/* Blackfin ELF shared library loader suppport
- + Copyright (C) 2003, 2004 Red Hat, Inc.
- + Contributed by Alexandre Oliva <[email protected]>
- + Lots of code copied from ../i386/elfinterp.c, so:
- + Copyright (c) 1994-2000 Eric Youngdale, Peter MacDonald,
- + David Engel, Hongjiu Lu and Mitch D'Souza
- + Copyright (C) 2001-2002, Erik Andersen
- + All rights reserved.
- +
- +This file is part of uClibc.
- +
- +uClibc is free software; you can redistribute it and/or modify it
- +under the terms of the GNU Lesser General Public License as
- +published by the Free Software Foundation; either version 2.1 of the
- +License, or (at your option) any later version.
- +
- +uClibc is distributed in the hope that it will be useful, but WITHOUT
- +ANY WARRANTY; without even the implied warranty of
- +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- +Library General Public License for more details.
- +
- +You should have received a copy of the GNU Lesser General Public
- +License along with uClibc; see the file COPYING.LIB. If not, write to
- +the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
- +USA. */
- +
- +#include <sys/cdefs.h> /* __attribute_used__ */
- +
- +/* Program to load an ELF binary on a linux system, and run it.
- + References to symbols in sharable libraries can be resolved by either
- + an ELF sharable library or a linux style of shared library. */
- +
- +/* Disclaimer: I have never seen any AT&T source code for SVr4, nor have
- + I ever taken any courses on internals. This program was developed using
- + information available through the book "UNIX SYSTEM V RELEASE 4,
- + Programmers guide: Ansi C and Programming Support Tools", which did
- + a more than adequate job of explaining everything required to get this
- + working. */
- +extern int _dl_ubicom32_resolve_pending(void) __attribute__((__visibility__("hidden")));
- +
- +struct funcdesc_value volatile *__attribute__((__visibility__("hidden")))
- +_dl_linux_resolver (struct elf_resolve *tpnt, int reloc_entry)
- +{
- + int reloc_type;
- + ELF_RELOC *this_reloc;
- + char *strtab;
- + ElfW(Sym) *symtab;
- + int symtab_index;
- + char *rel_addr;
- + struct elf_resolve *new_tpnt;
- + char *new_addr;
- + struct funcdesc_value funcval;
- + struct funcdesc_value volatile *got_entry;
- + char *symname;
- +
- + rel_addr = (char *)tpnt->dynamic_info[DT_JMPREL];
- +
- + this_reloc = (ELF_RELOC *)(intptr_t)(rel_addr + reloc_entry);
- + reloc_type = ELF_R_TYPE(this_reloc->r_info);
- + symtab_index = ELF_R_SYM(this_reloc->r_info);
- +
- + symtab = (Elf32_Sym *) tpnt->dynamic_info[DT_SYMTAB];
- + strtab = (char *) tpnt->dynamic_info[DT_STRTAB];
- + symname= strtab + symtab[symtab_index].st_name;
- +
- + if (reloc_type != R_UBICOM32_FUNCDESC_VALUE) {
- + _dl_dprintf(2, "%s: Incorrect relocation type in jump relocations\n",
- + _dl_progname);
- + _dl_exit(1);
- + }
- +
- + /* Address of GOT entry fix up */
- + got_entry = (struct funcdesc_value *) DL_RELOC_ADDR(tpnt->loadaddr, this_reloc->r_offset);
- +
- + /* Get the address to be used to fill in the GOT entry. */
- + new_addr = _dl_lookup_hash(symname, tpnt->symbol_scope, NULL, 0, &new_tpnt);
- + if (!new_addr) {
- + new_addr = _dl_lookup_hash(symname, NULL, NULL, 0, &new_tpnt);
- + if (!new_addr) {
- + _dl_dprintf(2, "%s: can't resolve symbol '%s'\n",
- + _dl_progname, symname);
- + _dl_exit(1);
- + }
- + }
- +
- + funcval.entry_point = new_addr;
- + funcval.got_value = new_tpnt->loadaddr.got_value;
- +
- +#if defined (__SUPPORT_LD_DEBUG__)
- + if (_dl_debug_bindings) {
- + _dl_dprintf(_dl_debug_file, "\nresolve function: %s", symname);
- + if (_dl_debug_detail)
- + _dl_dprintf(_dl_debug_file,
- + "\n\tpatched (%x,%x) ==> (%x,%x) @ %x\n",
- + got_entry->entry_point, got_entry->got_value,
- + funcval.entry_point, funcval.got_value,
- + got_entry);
- + }
- + if (1 || !_dl_debug_nofixups) {
- + got_entry->entry_point = ((unsigned long *)&_dl_ubicom32_resolve_pending)[0];
- + got_entry->got_value = funcval.got_value;
- + got_entry->entry_point = funcval.entry_point;
- + }
- +#else
- + /*
- + * initially set the entry point to resolve pending before starting
- + * the update. This has the effect of putting all other requests in a
- + * holding pattern until the resolution is completed.
- + */
- + got_entry->entry_point = ((unsigned long *)&_dl_ubicom32_resolve_pending)[0];
- + got_entry->got_value = funcval.got_value;
- + got_entry->entry_point = funcval.entry_point;
- +#endif
- +
- + return got_entry;
- +}
- +
- +static int
- +_dl_parse(struct elf_resolve *tpnt, struct dyn_elf *scope,
- + unsigned long rel_addr, unsigned long rel_size,
- + int (*reloc_fnc) (struct elf_resolve *tpnt, struct dyn_elf *scope,
- + ELF_RELOC *rpnt, ElfW(Sym) *symtab, char *strtab))
- +{
- + unsigned int i;
- + char *strtab;
- + ElfW(Sym) *symtab;
- + ELF_RELOC *rpnt;
- + int symtab_index;
- +
- + /* Now parse the relocation information */
- + rpnt = (ELF_RELOC *) rel_addr;
- + rel_size = rel_size / sizeof(ELF_RELOC);
- +
- + symtab = (ElfW(Sym) *) tpnt->dynamic_info[DT_SYMTAB];
- + strtab = (char *) tpnt->dynamic_info[DT_STRTAB];
- +
- + for (i = 0; i < rel_size; i++, rpnt++) {
- + int res;
- +
- + symtab_index = ELF_R_SYM(rpnt->r_info);
- + debug_sym(symtab,strtab,symtab_index);
- + debug_reloc(symtab,strtab,rpnt);
- +
- + res = reloc_fnc (tpnt, scope, rpnt, symtab, strtab);
- +
- + if (res==0) continue;
- +
- + _dl_dprintf(2, "\n%s: ",_dl_progname);
- +
- + if (symtab_index)
- + _dl_dprintf(2, "symbol '%s': ", strtab + symtab[symtab_index].st_name);
- +
- + if (res <0) {
- + int reloc_type = ELF_R_TYPE(rpnt->r_info);
- +#if defined (__SUPPORT_LD_DEBUG__)
- + _dl_dprintf(2, "can't handle reloc type %s\n ", _dl_reltypes(reloc_type));
- +#else
- + _dl_dprintf(2, "can't handle reloc type %x\n", reloc_type);
- +#endif
- + _dl_exit(-res);
- + } else if (res >0) {
- + _dl_dprintf(2, "can't resolve symbol\n");
- + return res;
- + }
- + }
- + return 0;
- +}
- +
- +static int
- +_dl_do_reloc (struct elf_resolve *tpnt,struct dyn_elf *scope,
- + ELF_RELOC *rpnt, ElfW(Sym) *symtab, char *strtab)
- +{
- + int reloc_type;
- + int symtab_index;
- + char *symname;
- + unsigned long reloc_value = 0, *reloc_addr;
- + struct { unsigned long v; } __attribute__((__packed__))
- + *reloc_addr_packed;
- + unsigned long symbol_addr;
- + struct elf_resolve *symbol_tpnt;
- + struct funcdesc_value funcval;
- +#if defined (__SUPPORT_LD_DEBUG__)
- + unsigned long old_val;
- +#endif
- +
- + reloc_addr = (unsigned long *) DL_RELOC_ADDR(tpnt->loadaddr, rpnt->r_offset);
- + __asm__ ("" : "=r" (reloc_addr_packed) : "0" (reloc_addr));
- + reloc_type = ELF_R_TYPE(rpnt->r_info);
- + symtab_index = ELF_R_SYM(rpnt->r_info);
- + symbol_addr = 0;
- + symname = strtab + symtab[symtab_index].st_name;
- +
- + if (ELF_ST_BIND (symtab[symtab_index].st_info) == STB_LOCAL) {
- + symbol_addr = (unsigned long) DL_RELOC_ADDR(tpnt->loadaddr, symtab[symtab_index].st_value);
- + symbol_tpnt = tpnt;
- + } else {
- +
- + symbol_addr = (unsigned long)
- + _dl_lookup_hash(symname, scope, NULL, 0, &symbol_tpnt);
- +
- + /*
- + * We want to allow undefined references to weak symbols - this might
- + * have been intentional. We should not be linking local symbols
- + * here, so all bases should be covered.
- + */
- +
- + if (!symbol_addr && ELF_ST_BIND(symtab[symtab_index].st_info) != STB_WEAK) {
- + _dl_dprintf (2, "%s: can't resolve symbol '%s'\n",
- + _dl_progname, strtab + symtab[symtab_index].st_name);
- + _dl_exit (1);
- + }
- + }
- +
- +#if defined (__SUPPORT_LD_DEBUG__)
- + if (_dl_debug_reloc && _dl_debug_detail)
- + {
- + if ((long)reloc_addr_packed & 3)
- + old_val = reloc_addr_packed->v;
- + else
- + old_val = *reloc_addr;
- + }
- + else
- + old_val = 0;
- +#endif
- + switch (reloc_type) {
- + case R_UBICOM32_NONE:
- + break;
- + case R_UBICOM32_32:
- + if ((long)reloc_addr_packed & 3)
- + reloc_value = reloc_addr_packed->v += symbol_addr;
- + else
- + reloc_value = *reloc_addr += symbol_addr;
- + break;
- + case R_UBICOM32_FUNCDESC_VALUE:
- + funcval.entry_point = (void*)symbol_addr;
- + /* The addend of FUNCDESC_VALUE
- + relocations referencing global
- + symbols must be ignored, because it
- + may hold the address of a lazy PLT
- + entry. */
- + if (ELF_ST_BIND(symtab[symtab_index].st_info) == STB_LOCAL)
- + funcval.entry_point += *reloc_addr;
- + reloc_value = (unsigned long)funcval.entry_point;
- + if (symbol_addr)
- + funcval.got_value
- + = symbol_tpnt->loadaddr.got_value;
- + else
- + funcval.got_value = 0;
- +
- +/// XXX this is my best guess as to what I should be doing, but I'm
- +/// putting a break-point here so I can inspect the first time this is
- +/// used.
- + __asm__ (
- + " move.4 4(%0), 4(%1) \n\t"
- + " move.4 0(%0), 0(%1) \n\t" /* Must to entry_point last */
- + :
- + : "a" (reloc_addr), "a" (&funcval)
- + : "memory" );
- + break;
- + case R_UBICOM32_FUNCDESC:
- + if ((long)reloc_addr_packed & 3)
- + reloc_value = reloc_addr_packed->v;
- + else
- + reloc_value = *reloc_addr;
- + if (symbol_addr)
- + reloc_value = (unsigned long)_dl_funcdesc_for
- + ((char *)symbol_addr + reloc_value,
- + symbol_tpnt->loadaddr.got_value);
- + else
- + reloc_value = 0;
- + if ((long)reloc_addr_packed & 3)
- + reloc_addr_packed->v = reloc_value;
- + else
- + *reloc_addr = reloc_value;
- + break;
- + default:
- + return -1;
- + }
- +#if defined (__SUPPORT_LD_DEBUG__)
- + if (_dl_debug_reloc && _dl_debug_detail) {
- + _dl_dprintf(_dl_debug_file, "\tpatched: %x ==> %x @ %x", old_val, reloc_value, reloc_addr);
- + switch (reloc_type) {
- + case R_UBICOM32_FUNCDESC_VALUE:
- + _dl_dprintf(_dl_debug_file, " got %x", ((struct funcdesc_value *)reloc_value)->got_value);
- + break;
- + case R_UBICOM32_FUNCDESC:
- + if (! reloc_value)
- + break;
- + _dl_dprintf(_dl_debug_file, " funcdesc (%x,%x)",
- + ((struct funcdesc_value *)reloc_value)->entry_point,
- + ((struct funcdesc_value *)reloc_value)->got_value);
- + break;
- + }
- + }
- +#endif
- +
- + return 0;
- +}
- +
- +static int
- +_dl_do_lazy_reloc (struct elf_resolve *tpnt,
- + struct dyn_elf *scope __attribute__((unused)),
- + ELF_RELOC *rpnt, ElfW(Sym) *symtab __attribute__((unused)),
- + char *strtab __attribute__((unused)))
- +{
- + int reloc_type;
- + struct funcdesc_value volatile *reloc_addr;
- + struct funcdesc_value funcval;
- +#if defined (__SUPPORT_LD_DEBUG__)
- + unsigned long old_val;
- +#endif
- +
- + reloc_addr = (struct funcdesc_value *) DL_RELOC_ADDR(tpnt->loadaddr, rpnt->r_offset);
- + reloc_type = ELF_R_TYPE(rpnt->r_info);
- +
- +#if defined (__SUPPORT_LD_DEBUG__)
- + old_val = (unsigned long)reloc_addr->entry_point;
- +#endif
- + switch (reloc_type) {
- + case R_UBICOM32_NONE:
- + break;
- + case R_UBICOM32_FUNCDESC_VALUE:
- + funcval = *reloc_addr;
- + funcval.entry_point = (void*)DL_RELOC_ADDR(tpnt->loadaddr, funcval.entry_point);
- + funcval.got_value = tpnt->loadaddr.got_value;
- + *reloc_addr = funcval;
- + break;
- + default:
- + return -1;
- + }
- +#if defined (__SUPPORT_LD_DEBUG__)
- + if (_dl_debug_reloc && _dl_debug_detail)
- + _dl_dprintf(_dl_debug_file, "\tpatched: %x ==> %x @ %x", old_val, reloc_addr->entry_point, reloc_addr);
- +#endif
- + return 0;
- +
- +}
- +
- +void
- +_dl_parse_lazy_relocation_information
- +(struct dyn_elf *rpnt, unsigned long rel_addr, unsigned long rel_size)
- +{
- + _dl_parse(rpnt->dyn, NULL, rel_addr, rel_size, _dl_do_lazy_reloc);
- +}
- +
- +int
- +_dl_parse_relocation_information
- +(struct dyn_elf *rpnt, unsigned long rel_addr, unsigned long rel_size)
- +{
- + return _dl_parse(rpnt->dyn, rpnt->dyn->symbol_scope, rel_addr, rel_size, _dl_do_reloc);
- +}
- +
- +#if 0
- +/* We don't have copy relocs. */
- +int
- +_dl_parse_copy_information
- +(struct dyn_elf *rpnt __attribute__((unused)),
- + unsigned long rel_addr __attribute__((unused)),
- + unsigned long rel_size __attribute__((unused)))
- +{
- + return 0;
- +}
- +#endif
- +#ifndef IS_IN_libdl
- +# include "../../libc/sysdeps/linux/ubicom32/crtreloc.c"
- +#endif
- --- /dev/null
- +++ b/ldso/ldso/ubicom32/resolve.S
- @@ -0,0 +1,161 @@
- + /* Copyright (C) 2003 Red Hat, Inc.
- + Contributed by Alexandre Oliva <[email protected]>
- +
- + Copyright (C) 2009 Ubicom Inc.
- + Ported to Ubicom32 by Ubicom Inc.
- +
- +This file is part of uClibc.
- +
- +uClibc is free software; you can redistribute it and/or modify it
- +under the terms of the GNU Lesser General Public License as
- +published by the Free Software Foundation; either version 2.1 of the
- +License, or (at your option) any later version.
- +
- +uClibc is distributed in the hope that it will be useful, but WITHOUT
- +ANY WARRANTY; without even the implied warranty of
- +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- +Library General Public License for more details.
- +
- +You should have received a copy of the GNU Lesser General Public
- +License along with uClibc; see the file COPYING.LIB. If not, write to
- +the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
- +USA. */
- +
- +
- +/*
- + * The function below is tail-called by resolver stubs when a lazily-bound *
- + * function is called. It must preserve all registers that could * be used to
- + * pass arguments to the actual function.
- + *
- + * On entry to the function d0-d13 contain parameters to the actual function of
- + * interest
- + *
- + * a5 contains the return address
- + * a0 is pointing to the GOT table for the original function
- + * (a0) _dl_linux_resolve
- + * 4(a0) GOT for _dl_linux_resolve
- + * 8(a0) is pointer to "structure elf_resolve" of the module where the call
- + * originated from
- + *
- + * a3 is pointing to the function descriptor in the GOT table, and 8(a3) the
- + * resolver lookup information.
- + *
- + * _dl_linux_resolve calls _dl_linux_resolver passing it pointer to
- + * struct elf_resolve and the relocation entry.
- + *
- + * _dl_linux_resolver() figures out where the jump symbol is _really_ supposed
- + * to have jumped to and returns that to us. Once we have that, we prepare to
- + * tail-call the actual function, clean up after ourselves, restoring the
- + * original arguments, then jump to the fixed up address.
- + */
- +
- +#if 0
- + /*
- + * Here is what the linker will use for the PLT.
- + */
- +sample_PLT_functionX: /* (at entry a0 contains GOT for this library) */
- + movei d15, # -%lo(got_funcdescX) ; load offset for GOT
- + lea.4 a3, (a0, d15) ; a4 is now the function descriptor
- + move.4 a4, 0(a3) ; get entry_point
- + move.4 a0, 4(a3) ; set new GOT
- +
- + /*
- + * jump to resovled function OR PLT_trampoline Nat had some code here
- + * that uses the stack instead of a3 to reduces hazards.
- + */
- + calli a4, 0(a4)
- +
- +
- +sample_PLT_trampoline:
- + /*
- + * find the old got by undoing what was done above. An alternative
- + * could have been to ‘save’ the old got in say d14 but that would add 1
- + * instruction to every PLT and there is only 1 PLT trampoline per library.
- + */
- + ret (a0) ; jump to _dl_linux_resolve
- +#endif
- +
- + .text
- + .p2align 4
- +
- + .hidden _dl_linux_resolve
- + .global _dl_linux_resolve
- + .type _dl_linux_resolve,@function
- +_dl_linux_resolve:
- + /* Preserve arguments and return address */
- + move.4 -4(sp)++, d0
- + move.4 -4(sp)++, d1
- + move.4 -4(sp)++, d2
- + move.4 -4(sp)++, d3
- + move.4 -4(sp)++, d4
- + move.4 -4(sp)++, d5
- + move.4 -4(sp)++, d6
- + move.4 -4(sp)++, d7
- + move.4 -4(sp)++, d8
- + move.4 -4(sp)++, d9
- + move.4 -4(sp)++, d10
- + move.4 -4(sp)++, d11
- + move.4 -4(sp)++, d12
- + move.4 -4(sp)++, d13
- + move.4 -4(sp)++, a5
- +
- + /* Prepare to call _dl_linux_resolver. */
- + move.4 d0, 8(a0) ; reference to elf_resolve
- + /* Not aligned for space reasons. */
- + move.4 d1, mac_hi ; reference to GOT table entry which
- + ; contains the relocation information.
- +
- + move.4 a0, 4(a0) ; switch to GOT for _dl_linux_resolve
- + call a5, _dl_linux_resolver;
- +
- + /* Move aside return value that contains the FUNCDESC_VALUE. */
- + ;P3 = R0;
- + move.4 a3, d0;
- +
- + /* Restore arguments. */
- + move.4 a5, (sp)4++
- + move.4 d13, (sp)4++
- + move.4 d12, (sp)4++
- + move.4 d11, (sp)4++
- + move.4 d10, (sp)4++
- + move.4 d9, (sp)4++
- + move.4 d8, (sp)4++
- + move.4 d7, (sp)4++
- + move.4 d6, (sp)4++
- + move.4 d5, (sp)4++
- + move.4 d4, (sp)4++
- + move.4 d3, (sp)4++
- + move.4 d2, (sp)4++
- + move.4 d1, (sp)4++
- + move.4 d0, (sp)4++
- +
- + /* Now jump to the actual function. */
- + /* a3 contains func_desc resolution */
- + move.4 a4, 0(a3) ; address of function X
- + move.4 a0, 4(a3) ; switch to GOT for function X
- + calli a4, 0(a4) ; call through a4, a5 remains
- +
- + .size _dl_linux_resolve, . - _dl_linux_resolve
- +
- + .hidden _dl_ubicom32_resolve_pending
- + .global _dl_ubicom32_resolve_pending
- + .type _dl_ubicom32_resolve_pending,@function
- +
- +_dl_ubicom32_resolve_pending:
- + /*
- + * A special function that is used to ensure thread saftly when the fd
- + * for a particular resolution is being updated.
- + *
- + * At entry, a3 must point to the FD. While the FD is being updated the
- + * entry_point will continue to point to _dl_ubicom32_resolve_pending so
- + * we will effectively spin until the resolver update is complete.
- + */
- +
- + move.4 a4, 0(a3) ; get entry_point
- + move.4 a0, 4(a3) ; set new GOT
- +
- + /*
- + * jump to resovled function or back to _dl_ubicom32_resolve_pending.
- + */
- + calli a4, 0(a4)
- + .size _dl_ubicom32_resolve_pending, . - _dl_ubicom32_resolve_pending
- --- a/libc/misc/Makefile.in
- +++ b/libc/misc/Makefile.in
- @@ -12,7 +12,9 @@ include $(top_srcdir)libc/misc/assert/Ma
- include $(top_srcdir)libc/misc/ctype/Makefile.in
- include $(top_srcdir)libc/misc/dirent/Makefile.in
- include $(top_srcdir)libc/misc/error/Makefile.in
- +ifneq ($(ARCH_HAS_NO_LDSO),y)
- include $(top_srcdir)libc/misc/elf/Makefile.in
- +endif
- include $(top_srcdir)libc/misc/file/Makefile.in
- include $(top_srcdir)libc/misc/fnmatch/Makefile.in
- include $(top_srcdir)libc/misc/ftw/Makefile.in
- --- a/libc/misc/elf/dl-iterate-phdr.c
- +++ b/libc/misc/elf/dl-iterate-phdr.c
- @@ -14,7 +14,7 @@
-
- #include <link.h>
- #include <ldso.h>
- -
- +#include <memory.h>
- /* we want this in libc but nowhere else */
- #ifdef __USE_GNU
-
- @@ -60,7 +60,11 @@ dl_iterate_phdr (int (*callback) (struct
- /* This entry describes this statically-linked program itself. */
- struct dl_phdr_info info;
- int ret;
- +#if !defined(__FDPIC__)
- info.dlpi_addr = 0;
- +#else
- + memset(&info.dlpi_addr, 0, sizeof(info.dlpi_addr));
- +#endif
- info.dlpi_name = "";
- info.dlpi_phdr = _dl_phdr;
- info.dlpi_phnum = _dl_phnum;
- --- a/libc/stdlib/malloc/malloc.c
- +++ b/libc/stdlib/malloc/malloc.c
- @@ -25,7 +25,7 @@ libc_hidden_proto(sbrk)
-
- /* The malloc heap. We provide a bit of initial static space so that
- programs can do a little mallocing without mmaping in more space. */
- -HEAP_DECLARE_STATIC_FREE_AREA (initial_fa, 256);
- +HEAP_DECLARE_STATIC_FREE_AREA (initial_fa, 32768);
- struct heap_free_area *__malloc_heap = HEAP_INIT_WITH_FA (initial_fa);
- #ifdef HEAP_USE_LOCKING
- malloc_mutex_t __malloc_heap_lock = PTHREAD_MUTEX_INITIALIZER;
- --- /dev/null
- +++ b/libc/string/ubicom32/Makefile
- @@ -0,0 +1,13 @@
- +# Makefile for uClibc
- +#
- +# Copyright (C) 2000-2005 Erik Andersen <[email protected]>
- +#
- +# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
- +#
- +
- +top_srcdir:=../../../
- +top_builddir:=../../../
- +all: objs
- +include $(top_builddir)Rules.mak
- +include ../Makefile.in
- +include $(top_srcdir)Makerules
- --- /dev/null
- +++ b/libc/string/ubicom32/memcpy.c
- @@ -0,0 +1,152 @@
- +/* Copy memory to memory until the specified number of bytes
- + has been copied. Overlap is NOT handled correctly.
- + Copyright (C) 1991, 1997, 2003 Free Software Foundation, Inc.
- + This file is part of the GNU C Library.
- + Contributed by Torbjorn Granlund ([email protected]).
- +
- + The GNU C Library is free software; you can redistribute it and/or
- + modify it under the terms of the GNU Lesser General Public
- + License as published by the Free Software Foundation; either
- + version 2.1 of the License, or (at your option) any later version.
- +
- + The GNU C Library is distributed in the hope that it will be useful,
- + but WITHOUT ANY WARRANTY; without even the implied warranty of
- + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- + Lesser General Public License for more details.
- +
- + You should have received a copy of the GNU Lesser General Public
- + License along with the GNU C Library; if not, write to the Free
- + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- + 02111-1307 USA. */
- +
- +#include <string.h>
- +
- +typedef unsigned long addr_t;
- +
- +libc_hidden_proto(memcpy)
- +
- +void *memcpy (void *dest, const void *src, size_t n)
- +{
- + void *dest_ret = dest;
- + void *aligned_start;
- +
- + if (likely((((addr_t)dest ^ (addr_t)src) & 3) == 0) && likely(n > 6)) {
- + size_t m;
- + n -= (4 - (addr_t)dest) & 0x03;
- + m = n >> 2;
- + __asm__ volatile (
- + " call %4, 99f \n\t" // load %4 with address of 99
- + "99: movei d15, #%%lo(1f-99b) \n\t" // load d15 with offset to 1 from 99
- + " add.4 %4, %4, d15 \n\t" // add difference
- +
- + " sub.4 d15, #0, %2 \n\t" // set up for jump table
- + " and.4 d15, #(32-1), d15 \n\t" // d15 = (-m) & (32 - 1)
- + " lea.4 %4, (%4,d15) \n\t"
- +
- + " bfextu d15, %0, #2 \n\t" // d15 = (dest & 3)
- + " jmpne.w.f 100f \n\t"
- + " calli %4, 0(%4) \n\t" // 4-byte alignment
- +
- + "100: cmpi d15, #2 \n\t"
- + " jmpne.s.f 101f \n\t"
- + " move.2 (%0)2++, (%1)2++ \n\t"
- + " calli %4, 0(%4) \n\t" // 2-byte alignment
- +
- + "101: move.1 (%0)1++, (%1)1++ \n\t"
- + " jmpgt.s.f 102f \n\t" // 3-byte alignment
- + " move.2 (%0)2++, (%1)2++ \n\t" // 1-byte alignment
- + "102: calli %4, 0(%4) \n\t"
- +
- + "200: cmpi %3, #2 \n\t"
- + " jmplt.s.f 201f \n\t"
- + " move.2 (%0)2++, (%1)2++ \n\t"
- + " jmpeq.s.t 2f \n\t"
- + "201: move.1 (%0)1++, (%1)1++ \n\t"
- + " jmpt.w.t 2f \n\t"
- +
- + "1: .rept 25 \n\t"
- + " movea (%0)4++, (%1)4++ \n\t"
- + " .endr \n\t"
- + " .rept 7 \n\t"
- + " move.4 (%0)4++, (%1)4++ \n\t"
- + " .endr \n\t"
- + " add.4 %2, #-32, %2 \n\t"
- + " jmpgt.w.f 1b \n\t"
- +
- + " and.4 %3, #3, %3 \n\t" // check n
- + " jmpne.w.f 200b \n\t"
- + "2: \n\t"
- + : "+a"(dest), "+a"(src), "+d"(m), "+d"(n), "=a"(aligned_start)
- + :
- + : "d15", "memory", "cc"
- + );
- +
- + return dest_ret;
- + }
- +
- + if (likely((((addr_t)dest ^ (addr_t)src) & 1) == 0) && likely(n > 2)) {
- + size_t m;
- + n -= (addr_t)dest & 0x01;
- + m = n >> 1;
- + __asm__ volatile (
- + " call %4, 99f \n\t" // load %4 with address of 99
- + "99: movei d15, #%%lo(1f-99b) \n\t" // load d15 with offset to 1 from 99
- + " add.4 %4, %4, d15 \n\t" // add difference
- +
- + " sub.4 d15, #0, %2 \n\t" // set up for jump table
- + " and.4 d15, #(32-1), d15 \n\t" // d15 = (-m) & (32 - 1)
- + " lea.4 %4, (%4,d15) \n\t"
- +
- + " btst %0, #0 \n\t" // check bit 0
- + " jmpne.w.f 100f \n\t"
- + " calli %4, 0(%4) \n\t" // 4-byte alignment
- +
- + "100: move.1 (%0)1++, (%1)1++ \n\t"
- + " calli %4, 0(%4) \n\t"
- +
- + "200: move.1 (%0)1++, (%1)1++ \n\t"
- + " jmpt.w.t 2f \n\t"
- +
- + "1: .rept 32 \n\t"
- + " move.2 (%0)2++, (%1)2++ \n\t"
- + " .endr \n\t"
- + " add.4 %2, #-32, %2 \n\t"
- + " jmpgt.w.f 1b \n\t"
- +
- + " and.4 %3, #1, %3 \n\t" // check n
- + " jmpne.w.f 200b \n\t"
- + "2: \n\t"
- +
- + : "+a"(dest), "+a"(src), "+d"(m), "+d"(n), "=a"(aligned_start)
- + :
- + : "d15", "memory", "cc"
- + );
- + return dest_ret;
- + }
- +
- + __asm__ volatile (
- + " call %3, 99f \n\t" // load %3 with address of 99
- + "99: movei d15, #%%lo(1f-99b) \n\t" // load d15 with offset to 1 from 99
- + " add.4 %3, %3, d15 \n\t" // add difference
- +
- + " sub.4 d15, #0, %2 \n\t"
- + " jmpeq.w.f 2f \n\t"
- + " and.4 d15, #(16-1), d15 \n\t" // d15 = (-n) & (16 - 1)
- + " lea.4 %3, (%3,d15) \n\t"
- + " calli %3, 0(%3) \n\t"
- +
- + "1: .rept 16 \n\t"
- + " move.1 (%0)1++, (%1)1++ \n\t"
- + " .endr \n\t"
- + " add.4 %2, #-16, %2 \n\t"
- + " jmpgt.w.f 1b \n\t"
- + "2: \n\t"
- +
- + : "+a"(dest), "+a"(src), "+d"(n), "=a"(aligned_start)
- + :
- + : "d15", "memory", "cc"
- + );
- +
- + return dest_ret;
- +}
- +libc_hidden_def(memcpy)
- --- /dev/null
- +++ b/libc/string/ubicom32/memset.c
- @@ -0,0 +1,107 @@
- +/* Copyright (C) 1991, 1997, 2003 Free Software Foundation, Inc.
- + This file is part of the GNU C Library.
- +
- + The GNU C Library is free software; you can redistribute it and/or
- + modify it under the terms of the GNU Lesser General Public
- + License as published by the Free Software Foundation; either
- + version 2.1 of the License, or (at your option) any later version.
- +
- + The GNU C Library is distributed in the hope that it will be useful,
- + but WITHOUT ANY WARRANTY; without even the implied warranty of
- + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- + Lesser General Public License for more details.
- +
- + You should have received a copy of the GNU Lesser General Public
- + License along with the GNU C Library; if not, write to the Free
- + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- + 02111-1307 USA. */
- +
- +#include <string.h>
- +
- +typedef unsigned long addr_t;
- +
- +libc_hidden_proto(memset)
- +void *memset (void *s, int c, size_t n)
- +{
- + void *s_ret = s;
- + void *aligned_start;
- + if (likely(n > 6)) {
- + size_t m;
- + n -= (4 - (addr_t)s) & 0x03;
- + m = n >> 2;
- + __asm__ volatile (
- + " call %4, 99f \n\t" // load %4 with address of 99
- + "99: movei d15, #%%lo(1f-99b) \n\t" // load d15 with offset to 1 from 99
- + " add.4 %4, %4, d15 \n\t" // add difference
- +
- + " sub.4 d15, #0, %2 \n\t" // set up for jump table
- + " and.4 d15, #(32-1), d15 \n\t" // d15 = (-m) & (32 - 1)
- + " shmrg.1 %1, %1, %1 \n\t"
- + " shmrg.2 %1, %1, %1 \n\t" // %1 = (c<<24)|(c<<16)|(c<<8)|c
- + " lea.4 %4, (%4,d15) \n\t"
- +
- + " bfextu d15, %0, #2 \n\t" // d15 = (s & 3)
- + " jmpne.w.f 100f \n\t"
- + " calli %4, 0(%4) \n\t" // 4-byte alignment
- +
- + "100: cmpi d15, #2 \n\t"
- + " jmpne.s.f 101f \n\t"
- + " move.2 (%0)2++, %1 \n\t"
- + " calli %4, 0(%4) \n\t" // 2-byte alignment
- +
- + "101: move.1 (%0)1++, %1 \n\t"
- + " jmpgt.s.f 102f \n\t" // 3-byte alignment
- + " move.2 (%0)2++, %1 \n\t" // 1-byte alignment
- + "102: calli %4, 0(%4) \n\t"
- +
- + "200: cmpi %3, #2 \n\t"
- + " jmplt.s.f 201f \n\t"
- + " move.2 (%0)2++, %1 \n\t"
- + " jmpeq.s.t 2f \n\t"
- + "201: move.1 (%0)1++, %1 \n\t"
- + " jmpt.w.t 2f \n\t"
- +
- + "1: .rept 25 \n\t"
- + " movea (%0)4++, %1 \n\t"
- + " .endr \n\t"
- + " .rept 7 \n\t"
- + " move.4 (%0)4++, %1 \n\t"
- + " .endr \n\t"
- + " add.4 %2, #-32, %2 \n\t"
- + " jmpgt.w.f 1b \n\t"
- +
- + " and.4 %3, #3, %3 \n\t" // test bit 1 of n
- + " jmpne.w.f 200b \n\t"
- + "2: \n\t"
- + : "+a"(s), "+d"(c), "+d"(m), "+d"(n), "=a"(aligned_start)
- + :
- + : "d15", "memory", "cc"
- + );
- +
- + return s_ret;
- + }
- +
- + __asm__ volatile (
- + " call %3, 99f \n\t" // load %3 with address of 99
- + "99: movei d15, #%%lo(1f-99b) \n\t" // load d15 with offset to 1 from 99
- + " add.4 %3, %3, d15 \n\t" // add difference
- +
- + " sub.4 d15, #0, %2 \n\t"
- + " jmpeq.w.f 2f \n\t"
- + " and.4 d15, #(8-1), d15 \n\t" // d15 = (-%2) & (16 - 1)
- + " lea.4 %3, (%3,d15) \n\t"
- + " calli %3, 0(%3) \n\t"
- +
- + "1: .rept 8 \n\t"
- + " move.1 (%0)1++, %1 \n\t"
- + " .endr \n\t"
- + "2: \n\t"
- +
- + : "+a"(s), "+d"(c), "+d"(n), "=a"(aligned_start)
- + :
- + : "d15", "memory", "cc"
- + );
- +
- + return s_ret;
- +}
- +libc_hidden_def(memset)
- --- a/libc/sysdeps/linux/common/sys/user.h
- +++ b/libc/sysdeps/linux/common/sys/user.h
- @@ -1 +1,4 @@
- +#if 0
- +/* As of linux v2.6.25 this is not part of the exported linux headers */
- #include <linux/user.h>
- +#endif
- --- /dev/null
- +++ b/libc/sysdeps/linux/ubicom32/Makefile
- @@ -0,0 +1,13 @@
- +# Makefile for uClibc
- +#
- +# Copyright (C) 2000-2006 Erik Andersen <[email protected]>
- +#
- +# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
- +#
- +
- +top_srcdir=../../../../
- +top_builddir=../../../../
- +all: objs
- +include $(top_builddir)Rules.mak
- +include Makefile.arch
- +include $(top_srcdir)Makerules
- --- /dev/null
- +++ b/libc/sysdeps/linux/ubicom32/Makefile.arch
- @@ -0,0 +1,28 @@
- +# Makefile for uClibc
- +#
- +# Copyright (C) 2000-2006 Erik Andersen <[email protected]>
- +#
- +# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
- +#
- +
- +#CSRC := \
- +# brk.c \
- +# crtbegin.c \
- +# crtend.c
- +#
- +#SSRC := \
- +# __longjmp.S \
- +# bsd-_setjmp.S \
- +# bsd-setjmp.S \
- +# setjmp.S \
- +# clone.S \
- +# vfork.S
- +
- +CSRC := \
- + syscall.c __syscall_error.c
- +
- +SSRC := \
- + clone.S setjmp.S vfork.S
- +
- +ARCH_CFLAGS := $(CPU_CFLAGS-y)
- +include $(top_srcdir)libc/sysdeps/linux/Makefile.commonarch
- --- /dev/null
- +++ b/libc/sysdeps/linux/ubicom32/__syscall_error.c
- @@ -0,0 +1,11 @@
- +#include <errno.h>
- +#include <features.h>
- +
- +/* This routine is jumped to by some of the syscall handlers, to stash
- + * an error number into errno. */
- +int __syscall_error(int err_no) attribute_hidden;
- +int __syscall_error(int err_no)
- +{
- + __set_errno(err_no);
- + return -1;
- +}
- --- /dev/null
- +++ b/libc/sysdeps/linux/ubicom32/bits/elf-fdpic.h
- @@ -0,0 +1,115 @@
- +/* Copyright 2003, 2004 Free Software Foundation, Inc.
- +This file is part of the GNU C Library.
- +
- +The GNU C Library is free software; you can redistribute it and/or
- +modify it under the terms of the GNU Lesser General Public License as
- +published by the Free Software Foundation; either version 2.1 of the
- +License, or (at your option) any later version.
- +
- +In addition to the permissions in the GNU Lesser General Public
- +License, the Free Software Foundation gives you unlimited
- +permission to link the compiled version of this file with other
- +programs, and to distribute those programs without any restriction
- +coming from the use of this file. (The GNU Lesser General Public
- +License restrictions do apply in other respects; for example, they
- +cover modification of the file, and distribution when not linked
- +into another program.)
- +
- +The GNU C Library is distributed in the hope that it will be useful,
- +but WITHOUT ANY WARRANTY; without even the implied warranty of
- +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- +Library General Public License for more details.
- +
- +You should have received a copy of the GNU Lesser General Public
- +License along with the GNU C Library; see the file COPYING.LIB. If
- +not, write to the Free Software Foundation, Inc., 675 Mass Ave,
- +Cambridge, MA 02139, USA. */
- +
- +#ifndef _BITS_ELF_FDPIC_H
- +#define _BITS_ELF_FDPIC_H
- +
- +/* These data structures are described in the FDPIC ABI extension.
- + The kernel passes a process a memory map, such that for every LOAD
- + segment there is an elf32_fdpic_loadseg entry. A pointer to an
- + elf32_fdpic_loadmap is passed in d8 at start-up, and a pointer to
- + an additional such map is passed in d9 for the interpreter, when
- + there is one. */
- +
- +#include <elf.h>
- +
- +/* This data structure represents a PT_LOAD segment. */
- +struct elf32_fdpic_loadseg
- +{
- + /* Core address to which the segment is mapped. */
- + Elf32_Addr addr;
- + /* VMA recorded in the program header. */
- + Elf32_Addr p_vaddr;
- + /* Size of this segment in memory. */
- + Elf32_Word p_memsz;
- +};
- +
- +struct elf32_fdpic_loadmap {
- + /* Protocol version number, must be zero. */
- + Elf32_Half version;
- + /* Number of segments in this map. */
- + Elf32_Half nsegs;
- + /* The actual memory map. */
- + struct elf32_fdpic_loadseg segs[/*nsegs*/];
- +};
- +
- +struct elf32_fdpic_loadaddr {
- + struct elf32_fdpic_loadmap *map;
- + void *got_value;
- +};
- +
- +/* Map a pointer's VMA to its corresponding address according to the
- + load map. */
- +static __always_inline void *
- +__reloc_pointer (void *p,
- + const struct elf32_fdpic_loadmap *map)
- +{
- + int c;
- +
- +#if 0
- + if (map->version != 0)
- + /* Crash. */
- + ((void(*)())0)();
- +#endif
- +
- + /* No special provision is made for NULL. We don't want NULL
- + addresses to go through relocation, so they shouldn't be in
- + .rofixup sections, and, if they're present in dynamic
- + relocations, they shall be mapped to the NULL address without
- + undergoing relocations. */
- +
- + for (c = 0;
- + /* Take advantage of the fact that the loadmap is ordered by
- + virtual addresses. In general there will only be 2 entries,
- + so it's not profitable to do a binary search. */
- + c < map->nsegs && p >= (void*)map->segs[c].p_vaddr;
- + c++)
- + {
- + /* This should be computed as part of the pointer comparison
- + above, but we want to use the carry in the comparison, so we
- + can't convert it to an integer type beforehand. */
- + unsigned long offset = p - (void*)map->segs[c].p_vaddr;
- + /* We only check for one-past-the-end for the last segment,
- + assumed to be the data segment, because other cases are
- + ambiguous in the absence of padding between segments, and
- + rofixup already serves as padding between text and data.
- + Unfortunately, unless we special-case the last segment, we
- + fail to relocate the _end symbol. */
- + if (offset < map->segs[c].p_memsz
- + || (offset == map->segs[c].p_memsz && c + 1 == map->nsegs))
- + return (char*)map->segs[c].addr + offset;
- + }
- +
- + /* We might want to crash instead. */
- + return (void*)-1;
- +}
- +
- +# define __RELOC_POINTER(ptr, loadaddr) \
- + (__reloc_pointer ((void*)(ptr), \
- + (loadaddr).map))
- +
- +#endif /* _BITS_ELF_FDPIC_H */
- --- /dev/null
- +++ b/libc/sysdeps/linux/ubicom32/bits/endian.h
- @@ -0,0 +1,7 @@
- +/* Ubicom32 is big-endian. */
- +
- +#ifndef _ENDIAN_H
- +# error "Never use <bits/endian.h> directly; include <endian.h> instead."
- +#endif
- +
- +#define __BYTE_ORDER __BIG_ENDIAN
- --- /dev/null
- +++ b/libc/sysdeps/linux/ubicom32/bits/fcntl.h
- @@ -0,0 +1,224 @@
- +/* O_*, F_*, FD_* bit values for Linux.
- + Copyright (C) 2000 Free Software Foundation, Inc.
- + This file is part of the GNU C Library.
- +
- + The GNU C Library is free software; you can redistribute it and/or
- + modify it under the terms of the GNU Lesser General Public
- + License as published by the Free Software Foundation; either
- + version 2.1 of the License, or (at your option) any later version.
- +
- + The GNU C Library is distributed in the hope that it will be useful,
- + but WITHOUT ANY WARRANTY; without even the implied warranty of
- + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- + Lesser General Public License for more details.
- +
- + You should have received a copy of the GNU Lesser General Public
- + License along with the GNU C Library; if not, write to the Free
- + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- + 02111-1307 USA. */
- +
- +#ifndef _FCNTL_H
- +# error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead."
- +#endif
- +
- +
- +#include <sys/types.h>
- +#ifdef __USE_GNU
- +# include <bits/uio.h>
- +#endif
- +
- +/* open/fcntl - O_SYNC is only implemented on blocks devices and on files
- + located on an ext2 file system */
- +#define O_ACCMODE 0003
- +#define O_RDONLY 00
- +#define O_WRONLY 01
- +#define O_RDWR 02
- +#define O_CREAT 0100 /* not fcntl */
- +#define O_EXCL 0200 /* not fcntl */
- +#define O_NOCTTY 0400 /* not fcntl */
- +#define O_TRUNC 01000 /* not fcntl */
- +#define O_APPEND 02000
- +#define O_NONBLOCK 04000
- +#define O_NDELAY O_NONBLOCK
- +#define O_SYNC 010000
- +#define O_FSYNC O_SYNC
- +#define O_ASYNC 020000
- +
- +#ifdef __USE_GNU
- +# define O_DIRECTORY 040000 /* Must be a directory. */
- +# define O_NOFOLLOW 0100000 /* Do not follow links. */
- +# define O_DIRECT 0200000 /* Direct disk access. */
- +# define O_STREAMING 04000000/* streaming access */
- +#endif
- +
- +/* For now Linux has synchronisity options for data and read operations.
- + We define the symbols here but let them do the same as O_SYNC since
- + this is a superset. */
- +#if defined __USE_POSIX199309 || defined __USE_UNIX98
- +# define O_DSYNC O_SYNC /* Synchronize data. */
- +# define O_RSYNC O_SYNC /* Synchronize read operations. */
- +#endif
- +
- +#ifdef __USE_LARGEFILE64
- +# define O_LARGEFILE 0400000
- +#endif
- +
- +/* Values for the second argument to `fcntl'. */
- +#define F_DUPFD 0 /* Duplicate file descriptor. */
- +#define F_GETFD 1 /* Get file descriptor flags. */
- +#define F_SETFD 2 /* Set file descriptor flags. */
- +#define F_GETFL 3 /* Get file status flags. */
- +#define F_SETFL 4 /* Set file status flags. */
- +#ifndef __USE_FILE_OFFSET64
- +# define F_GETLK 5 /* Get record locking info. */
- +# define F_SETLK 6 /* Set record locking info (non-blocking). */
- +# define F_SETLKW 7 /* Set record locking info (blocking). */
- +#else
- +# define F_GETLK F_GETLK64 /* Get record locking info. */
- +# define F_SETLK F_SETLK64 /* Set record locking info (non-blocking).*/
- +# define F_SETLKW F_SETLKW64 /* Set record locking info (blocking). */
- +#endif
- +#define F_GETLK64 12 /* Get record locking info. */
- +#define F_SETLK64 13 /* Set record locking info (non-blocking). */
- +#define F_SETLKW64 14 /* Set record locking info (blocking). */
- +
- +#if defined __USE_BSD || defined __USE_XOPEN2K
- +# define F_SETOWN 8 /* Get owner of socket (receiver of SIGIO). */
- +# define F_GETOWN 9 /* Set owner of socket (receiver of SIGIO). */
- +#endif
- +
- +#ifdef __USE_GNU
- +# define F_SETSIG 10 /* Set number of signal to be sent. */
- +# define F_GETSIG 11 /* Get number of signal to be sent. */
- +#endif
- +
- +#ifdef __USE_GNU
- +# define F_SETLEASE 1024 /* Set a lease. */
- +# define F_GETLEASE 1025 /* Enquire what lease is active. */
- +# define F_NOTIFY 1026 /* Request notfications on a directory. */
- +#endif
- +
- +/* For F_[GET|SET]FL. */
- +#define FD_CLOEXEC 1 /* actually anything with low bit set goes */
- +
- +/* For posix fcntl() and `l_type' field of a `struct flock' for lockf(). */
- +#define F_RDLCK 0 /* Read lock. */
- +#define F_WRLCK 1 /* Write lock. */
- +#define F_UNLCK 2 /* Remove lock. */
- +
- +/* For old implementation of bsd flock(). */
- +#define F_EXLCK 4 /* or 3 */
- +#define F_SHLCK 8 /* or 4 */
- +
- +#ifdef __USE_BSD
- +/* Operations for bsd flock(), also used by the kernel implementation. */
- +# define LOCK_SH 1 /* shared lock */
- +# define LOCK_EX 2 /* exclusive lock */
- +# define LOCK_NB 4 /* or'd with one of the above to prevent
- + blocking */
- +# define LOCK_UN 8 /* remove lock */
- +#endif
- +
- +#ifdef __USE_GNU
- +# define LOCK_MAND 32 /* This is a mandatory flock: */
- +# define LOCK_READ 64 /* ... which allows concurrent read operations. */
- +# define LOCK_WRITE 128 /* ... which allows concurrent write operations. */
- +# define LOCK_RW 192 /* ... Which allows concurrent read & write operations. */
- +#endif
- +
- +#ifdef __USE_GNU
- +/* Types of directory notifications that may be requested with F_NOTIFY. */
- +# define DN_ACCESS 0x00000001 /* File accessed. */
- +# define DN_MODIFY 0x00000002 /* File modified. */
- +# define DN_CREATE 0x00000004 /* File created. */
- +# define DN_DELETE 0x00000008 /* File removed. */
- +# define DN_RENAME 0x00000010 /* File renamed. */
- +# define DN_ATTRIB 0x00000020 /* File changed attibutes. */
- +# define DN_MULTISHOT 0x80000000 /* Don't remove notifier. */
- +#endif
- +
- +struct flock
- + {
- + short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */
- + short int l_whence; /* Where `l_start' is relative to (like `lseek'). */
- +#ifndef __USE_FILE_OFFSET64
- + __off_t l_start; /* Offset where the lock begins. */
- + __off_t l_len; /* Size of the locked area; zero means until EOF. */
- +#else
- + __off64_t l_start; /* Offset where the lock begins. */
- + __off64_t l_len; /* Size of the locked area; zero means until EOF. */
- +#endif
- + __pid_t l_pid; /* Process holding the lock. */
- + };
- +
- +#ifdef __USE_LARGEFILE64
- +struct flock64
- + {
- + short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */
- + short int l_whence; /* Where `l_start' is relative to (like `lseek'). */
- + __off64_t l_start; /* Offset where the lock begins. */
- + __off64_t l_len; /* Size of the locked area; zero means until EOF. */
- + __pid_t l_pid; /* Process holding the lock. */
- + };
- +#endif
- +
- +/* Define some more compatibility macros to be backward compatible with
- + BSD systems which did not managed to hide these kernel macros. */
- +#ifdef __USE_BSD
- +# define FAPPEND O_APPEND
- +# define FFSYNC O_FSYNC
- +# define FASYNC O_ASYNC
- +# define FNONBLOCK O_NONBLOCK
- +# define FNDELAY O_NDELAY
- +#endif /* Use BSD. */
- +
- +/* Advise to `posix_fadvise'. */
- +#ifdef __USE_XOPEN2K
- +# define POSIX_FADV_NORMAL 0 /* No further special treatment. */
- +# define POSIX_FADV_RANDOM 1 /* Expect random page references. */
- +# define POSIX_FADV_SEQUENTIAL 2 /* Expect sequential page references. */
- +# define POSIX_FADV_WILLNEED 3 /* Will need these pages. */
- +# define POSIX_FADV_DONTNEED 4 /* Don't need these pages. */
- +# define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */
- +#endif
- +
- +#ifdef __USE_GNU
- +# define SYNC_FILE_RANGE_WAIT_BEFORE 1 /* Wait upon writeout of all pages
- + in the range before performing the
- + write. */
- +# define SYNC_FILE_RANGE_WRITE 2 /* Initiate writeout of all those
- + dirty pages in the range which are
- + not presently under writeback. */
- +# define SYNC_FILE_RANGE_WAIT_AFTER 4 /* Wait upon writeout of all pages in
- + the range after performing the
- + write. */
- +#endif
- +
- +__BEGIN_DECLS
- +
- +#ifdef __USE_GNU
- +
- +/* Provide kernel hint to read ahead. */
- +extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count)
- + __THROW;
- +
- +/* Selective file content synch'ing. */
- +extern int sync_file_range (int __fd, __off64_t __from, __off64_t __to,
- + unsigned int __flags);
- +
- +/* Splice address range into a pipe. */
- +extern ssize_t vmsplice (int __fdout, const struct iovec *__iov,
- + size_t __count, unsigned int __flags);
- +
- +/* Splice two files together. */
- +extern ssize_t splice (int __fdin, __off64_t *__offin, int __fdout,
- + __off64_t *__offout, size_t __len,
- + unsigned int __flags);
- +
- +/* In-kernel implementation of tee for pipe buffers. */
- +extern ssize_t tee (int __fdin, int __fdout, size_t __len,
- + unsigned int __flags);
- +
- +#endif
- +
- +__END_DECLS
- --- /dev/null
- +++ b/libc/sysdeps/linux/ubicom32/bits/kernel_stat.h
- @@ -0,0 +1,61 @@
- +#ifndef _BITS_STAT_STRUCT_H
- +#define _BITS_STAT_STRUCT_H
- +
- +#ifndef _LIBC
- +#error bits/kernel_stat.h is for internal uClibc use only!
- +#endif
- +
- +/* This file provides whatever this particular arch's kernel thinks
- + * struct kernel_stat should look like... It turns out each arch has a
- + * different opinion on the subject... */
- +
- +struct kernel_stat {
- + unsigned short st_dev;
- + unsigned short __pad1;
- + unsigned long st_ino;
- + unsigned short st_mode;
- + unsigned short st_nlink;
- + unsigned short st_uid;
- + unsigned short st_gid;
- + unsigned short st_rdev;
- + unsigned short __pad2;
- + unsigned long st_size;
- + unsigned long st_blksize;
- + unsigned long st_blocks;
- + unsigned long st_atime;
- + unsigned long __unused1;
- + unsigned long st_mtime;
- + unsigned long __unused2;
- + unsigned long st_ctime;
- + unsigned long __unused3;
- + unsigned long __unused4;
- + unsigned long __unused5;
- +};
- +
- +struct kernel_stat64 {
- + unsigned char __pad0[6];
- + unsigned short st_dev;
- + unsigned char __pad1[4];
- +#define _HAVE_STAT64___ST_INO
- + unsigned long __st_ino;
- + unsigned int st_mode;
- + unsigned int st_nlink;
- + unsigned long st_uid;
- + unsigned long st_gid;
- + unsigned char __pad2[6];
- + unsigned short st_rdev;
- + unsigned char __pad3[4];
- + long long st_size;
- + unsigned long st_blksize;
- + unsigned long st_blocks; /* Number 512-byte blocks allocated. */
- + unsigned long __pad4; /* future possible st_blocks high bits */
- + unsigned long st_atime;
- + unsigned long __pad5;
- + unsigned long st_mtime;
- + unsigned long __pad6;
- + unsigned long st_ctime;
- + unsigned long __pad7; /* will be high 32 bits of ctime someday */
- + unsigned long long st_ino;
- +};
- +
- +#endif /* _BITS_STAT_STRUCT_H */
- --- /dev/null
- +++ b/libc/sysdeps/linux/ubicom32/bits/kernel_types.h
- @@ -0,0 +1,44 @@
- +/* Note that we use the exact same include guard #define names
- + * as asm/posix_types.h. This will avoid gratuitous conflicts
- + * with the posix_types.h kernel header, and will ensure that
- + * our private content, and not the kernel header, will win.
- + * -Erik
- + */
- +#ifndef __ARCH_UBICOM32_POSIX_TYPES_H
- +#define __ARCH_UBICOM32_POSIX_TYPES_H
- +
- +typedef unsigned long __kernel_dev_t;
- +typedef unsigned long __kernel_ino_t;
- +typedef unsigned short __kernel_mode_t;
- +typedef unsigned short __kernel_nlink_t;
- +typedef long __kernel_off_t;
- +typedef int __kernel_pid_t;
- +typedef unsigned short __kernel_ipc_pid_t;
- +typedef unsigned short __kernel_uid_t;
- +typedef unsigned short __kernel_gid_t;
- +typedef unsigned int __kernel_size_t;
- +typedef int __kernel_ssize_t;
- +typedef int __kernel_ptrdiff_t;
- +typedef long __kernel_time_t;
- +typedef long __kernel_suseconds_t;
- +typedef long __kernel_clock_t;
- +typedef int __kernel_daddr_t;
- +typedef char * __kernel_caddr_t;
- +typedef unsigned short __kernel_uid16_t;
- +typedef unsigned short __kernel_gid16_t;
- +typedef unsigned int __kernel_uid32_t;
- +typedef unsigned int __kernel_gid32_t;
- +typedef unsigned short __kernel_old_uid_t;
- +typedef unsigned short __kernel_old_gid_t;
- +typedef unsigned short __kernel_old_dev_t;
- +typedef long long __kernel_loff_t;
- +
- +typedef struct {
- +#ifdef __USE_ALL
- + int val[2];
- +#else
- + int __val[2];
- +#endif
- +} __kernel_fsid_t;
- +
- +#endif /* __ARCH_UBICOM32_POSIX_TYPES_H */
- --- /dev/null
- +++ b/libc/sysdeps/linux/ubicom32/bits/mman.h
- @@ -0,0 +1,102 @@
- +/* Definitions for POSIX memory map interface. Linux/m68k version.
- + Copyright (C) 1997, 2000, 2003, 2005 Free Software Foundation, Inc.
- + This file is part of the GNU C Library.
- +
- + The GNU C Library is free software; you can redistribute it and/or
- + modify it under the terms of the GNU Lesser General Public
- + License as published by the Free Software Foundation; either
- + version 2.1 of the License, or (at your option) any later version.
- +
- + The GNU C Library is distributed in the hope that it will be useful,
- + but WITHOUT ANY WARRANTY; without even the implied warranty of
- + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- + Lesser General Public License for more details.
- +
- + You should have received a copy of the GNU Lesser General Public
- + License along with the GNU C Library; if not, write to the Free
- + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- + 02111-1307 USA. */
- +
- +#ifndef _SYS_MMAN_H
- +# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead."
- +#endif
- +
- +/* The following definitions basically come from the kernel headers.
- + But the kernel header is not namespace clean. */
- +
- +
- +/* Protections are chosen from these bits, OR'd together. The
- + implementation does not necessarily support PROT_EXEC or PROT_WRITE
- + without PROT_READ. The only guarantees are that no writing will be
- + allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
- +
- +#define PROT_READ 0x1 /* Page can be read. */
- +#define PROT_WRITE 0x2 /* Page can be written. */
- +#define PROT_EXEC 0x4 /* Page can be executed. */
- +#define PROT_NONE 0x0 /* Page can not be accessed. */
- +#define PROT_GROWSDOWN 0x01000000 /* Extend change to start of
- + growsdown vma (mprotect only). */
- +#define PROT_GROWSUP 0x02000000 /* Extend change to start of
- + growsup vma (mprotect only). */
- +
- +/* Sharing types (must choose one and only one of these). */
- +#define MAP_SHARED 0x01 /* Share changes. */
- +#define MAP_PRIVATE 0x02 /* Changes are private. */
- +#ifdef __USE_MISC
- +# define MAP_TYPE 0x0f /* Mask for type of mapping. */
- +#endif
- +
- +/* Other flags. */
- +#define MAP_FIXED 0x10 /* Interpret addr exactly. */
- +#ifdef __USE_MISC
- +# define MAP_FILE 0
- +# define MAP_ANONYMOUS 0x20 /* Don't use a file. */
- +# define MAP_ANON MAP_ANONYMOUS
- +#endif
- +
- +/* These are Linux-specific. */
- +#ifdef __USE_MISC
- +# define MAP_GROWSDOWN 0x00100 /* Stack-like segment. */
- +# define MAP_DENYWRITE 0x00800 /* ETXTBSY */
- +# define MAP_EXECUTABLE 0x01000 /* Mark it as an executable. */
- +# define MAP_LOCKED 0x02000 /* Lock the mapping. */
- +# define MAP_NORESERVE 0x04000 /* Don't check for reservations. */
- +# define MAP_POPULATE 0x08000 /* Populate (prefault) pagetables. */
- +# define MAP_NONBLOCK 0x10000 /* Do not block on IO. */
- +#endif
- +
- +/* Flags to `msync'. */
- +#define MS_ASYNC 1 /* Sync memory asynchronously. */
- +#define MS_SYNC 4 /* Synchronous memory sync. */
- +#define MS_INVALIDATE 2 /* Invalidate the caches. */
- +
- +/* Flags for `mlockall'. */
- +#define MCL_CURRENT 1 /* Lock all currently mapped pages. */
- +#define MCL_FUTURE 2 /* Lock all additions to address
- + space. */
- +
- +/* Flags for `mremap'. */
- +#ifdef __USE_GNU
- +# define MREMAP_MAYMOVE 1
- +# define MREMAP_FIXED 2
- +#endif
- +
- +/* Advice to `madvise'. */
- +#ifdef __USE_BSD
- +# define MADV_NORMAL 0 /* No further special treatment. */
- +# define MADV_RANDOM 1 /* Expect random page references. */
- +# define MADV_SEQUENTIAL 2 /* Expect sequential page references. */
- +# define MADV_WILLNEED 3 /* Will need these pages. */
- +# define MADV_DONTNEED 4 /* Don't need these pages. */
- +# define MADV_DONTFORK 10 /* Do not inherit across fork. */
- +# define MADV_DOFORK 11 /* Do inherit across fork. */
- +#endif
- +
- +/* The POSIX people had to invent similar names for the same things. */
- +#ifdef __USE_XOPEN2K
- +# define POSIX_MADV_NORMAL 0 /* No further special treatment. */
- +# define POSIX_MADV_RANDOM 1 /* Expect random page references. */
- +# define POSIX_MADV_SEQUENTIAL 2 /* Expect sequential page references. */
- +# define POSIX_MADV_WILLNEED 3 /* Will need these pages. */
- +# define POSIX_MADV_DONTNEED 4 /* Don't need these pages. */
- +#endif
- --- /dev/null
- +++ b/libc/sysdeps/linux/ubicom32/bits/setjmp.h
- @@ -0,0 +1,52 @@
- +/* Define the machine-dependent type `jmp_buf'. Ubicom32 version.
- + Copyright (C) 1992,93,95,97,2000 Free Software Foundation, Inc.
- + This file is part of the GNU C Library.
- +
- + The GNU C Library is free software; you can redistribute it and/or
- + modify it under the terms of the GNU Lesser General Public
- + License as published by the Free Software Foundation; either
- + version 2.1 of the License, or (at your option) any later version.
- +
- + The GNU C Library is distributed in the hope that it will be useful,
- + but WITHOUT ANY WARRANTY; without even the implied warranty of
- + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- + Lesser General Public License for more details.
- +
- + You should have received a copy of the GNU Lesser General Public
- + License along with the GNU C Library; if not, write to the Free
- + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- + 02111-1307 USA. */
- +
- +#ifndef _BITS_SETJMP_H
- +#define _BITS_SETJMP_H 1
- +
- +#if !defined _SETJMP_H && !defined _PTHREAD_H
- +# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
- +#endif
- +
- +#ifndef _ASM
- +/*
- + * This is the structure where we are going to save D10-D13, A0, A1, A2, A5, A6 and SP(A7).
- + * A5 is the return address. Call to setjmp will save these. Call to longjmp will return
- + * Control to the address in A5.
- + */
- +typedef struct setjmp_save_struct {
- + unsigned long d10; /* D10 */
- + unsigned long d11; /* D11 */
- + unsigned long d12; /* D12 */
- + unsigned long d13; /* D13 */
- + unsigned long a1; /* A1 */
- + unsigned long a2; /* A2 */
- + unsigned long a5; /* A5 return address. */
- + unsigned long a6; /* A6 */
- + unsigned long sp; /* A7 stack pointer. */
- +} __jmp_buf[1];
- +
- +#endif
- +
- +/* Test if longjmp to JMPBUF would unwind the frame
- + containing a local variable at ADDRESS. */
- +#define _JMPBUF_UNWINDS(jmpbuf, address) \
- + ((void *) (address) < (void*)(jmpbuf)->sp)
- +
- +#endif /* bits/setjmp.h */
- --- /dev/null
- +++ b/libc/sysdeps/linux/ubicom32/bits/stackinfo.h
- @@ -0,0 +1,28 @@
- +/* Copyright (C) 1999 Free Software Foundation, Inc.
- + This file is part of the GNU C Library.
- +
- + The GNU C Library is free software; you can redistribute it and/or
- + modify it under the terms of the GNU Lesser General Public
- + License as published by the Free Software Foundation; either
- + version 2.1 of the License, or (at your option) any later version.
- +
- + The GNU C Library is distributed in the hope that it will be useful,
- + but WITHOUT ANY WARRANTY; without even the implied warranty of
- + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- + Lesser General Public License for more details.
- +
- + You should have received a copy of the GNU Lesser General Public
- + License along with the GNU C Library; if not, write to the Free
- + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- + 02111-1307 USA. */
- +
- +/* This file contains a bit of information about the stack allocation
- + of the processor. */
- +
- +#ifndef _STACKINFO_H
- +#define _STACKINFO_H 1
- +
- +/* On Ubicom32 the stack grows down. */
- +#define _STACK_GROWS_DOWN 1
- +
- +#endif /* stackinfo.h */
- --- /dev/null
- +++ b/libc/sysdeps/linux/ubicom32/bits/syscalls.h
- @@ -0,0 +1,169 @@
- +#ifndef _BITS_SYSCALLS_H
- +#define _BITS_SYSCALLS_H
- +#ifndef _SYSCALL_H
- +# error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead."
- +#endif
- +
- +/* m68k headers does stupid stuff with __NR_iopl / __NR_vm86:
- + * #define __NR_iopl not supported
- + * #define __NR_vm86 not supported
- + */
- +#undef __NR_iopl
- +#undef __NR_vm86
- +
- +#ifndef __ASSEMBLER__
- +
- +#include <errno.h>
- +
- +/* Linux takes system call arguments in registers:
- +
- + syscall number %d8
- + arg 1 %d0
- + arg 2 %d1
- + arg 3 %d2
- + arg 4 %d3
- + arg 5 %d4
- + arg 6 %d5
- +*/
- +
- +#define __syscall_return(type, res) \
- + do { \
- + if (likely((unsigned long)(res) < (unsigned long)(-125))) { \
- + return (type) (res); \
- + } else { \
- + /* avoid using res which is declared to be in register d0; \
- + errno might expand to a function call and clobber it. */ \
- + int __err = -(res); \
- + __set_errno(__err); \
- + return (type) -1; \
- + } \
- + } while (0)
- +
- +extern void __illegally_sized_syscall_arg1 (void);
- +extern void __illegally_sized_syscall_arg2 (void);
- +extern void __illegally_sized_syscall_arg3 (void);
- +extern void __illegally_sized_syscall_arg4 (void);
- +extern void __illegally_sized_syscall_arg5 (void);
- +extern void __illegally_sized_syscall_arg6 (void);
- +
- +#define __loadargs_0(name, dummy) \
- + d8 = name
- +
- +#define __loadargs_1(name, __arg1) \
- + __loadargs_0(name, 0); \
- + if (__builtin_classify_type (__arg1) != 5 && sizeof (__arg1) > 4) \
- + __illegally_sized_syscall_arg1 (); \
- + d0_retval = (long int) __arg1
- +#define __loadargs_2(name, __arg1, __arg2) \
- + __loadargs_1(name, __arg1); \
- + if (__builtin_classify_type (__arg2) != 5 && sizeof (__arg2) > 4) \
- + __illegally_sized_syscall_arg2 (); \
- + d1 = (long int) __arg2
- +
- +#define __loadargs_3(name, __arg1, __arg2, __arg3) \
- + __loadargs_2(name, __arg1, __arg2); \
- + if (__builtin_classify_type (__arg3) != 5 && sizeof (__arg3) > 4) \
- + __illegally_sized_syscall_arg3 (); \
- + d2 = (long int) __arg3
- +
- +#define __loadargs_4(name, __arg1, __arg2, __arg3, __arg4) \
- + __loadargs_3(name, __arg1, __arg2, __arg3); \
- + if (__builtin_classify_type (__arg4) != 5 && sizeof (__arg4) > 4) \
- + __illegally_sized_syscall_arg4 (); \
- + d3 = (long int)__arg4
- +
- +#define __loadargs_5(name, __arg1, __arg2, __arg3, __arg4, __arg5) \
- + __loadargs_4(name, __arg1, __arg2, __arg3, __arg4); \
- + if (__builtin_classify_type (__arg5) != 5 && sizeof (__arg5) > 4) \
- + __illegally_sized_syscall_arg5 (); \
- + d4 = (long int)__arg5
- +
- +#define __loadargs_6(name, __arg1, __arg2, __arg3, __arg4, __arg5, __arg6) \
- + __loadargs_5(name, __arg1, __arg2, __arg3, __arg4, __arg5); \
- + if (__builtin_classify_type (__arg6) != 5 && sizeof (__arg6) > 4) \
- + __illegally_sized_syscall_arg6 (); \
- + d5 = (long int)__arg6
- +
- +#define __internal_syscall_body(name, nr, args...) \
- + register long int d0_retval __asm__ ("d0"); \
- + register long int d1 __asm__ ("d1"); \
- + register long int d2 __asm__ ("d2"); \
- + register long int d3 __asm__ ("d3"); \
- + register long int d4 __asm__ ("d4"); \
- + register long int d5 __asm__ ("d5"); \
- + register long int d8 __asm__ ("d8"); \
- + __loadargs_##nr (__NR_##name, args); \
- + __asm__ __volatile__ ( \
- + " moveai a5, #%%hi(0x40400000)\n\t" \
- + " calli a5, 16(a5)\n\t" \
- + : "+r" (d0_retval), "+r" (d1), "+r" (d2), "+r" (d3), \
- + "+r" (d4), "+r" (d5), "+r" (d8) : \
- + : "cc", "memory", \
- + "acc0_lo", "acc0_hi", "acc1_lo", "acc1_hi", \
- + "source3", \
- + "a0", "a3", "a4", "a5", \
- + "d6", "d7", "d9", "d14", "d15" \
- + );
- +
- +#define INLINE_SYSCALL(name, nr, args...) \
- + ({ \
- + __internal_syscall_body(name, nr, args); \
- + if (unlikely((unsigned long)(d0_retval) >= (unsigned long)(-125))) { \
- + __set_errno (-d0_retval); \
- + d0_retval = -1L; \
- + } \
- + d0_retval; \
- + })
- +
- +
- +#undef _syscall0
- +#define _syscall0(type,name) \
- +type name(void){ \
- + __internal_syscall_body(name, 0); \
- + __syscall_return(type, d0_retval); \
- +}
- +
- +#undef _syscall1
- +#define _syscall1(type,name,type1,arg1) \
- +type name(type1 arg1){ \
- + __internal_syscall_body(name, 1, arg1); \
- + __syscall_return(type, d0_retval); \
- +}
- +
- +#undef _syscall2
- +#define _syscall2(type,name,type1,arg1,type2,arg2) \
- +type name(type1 arg1, type2 arg2){ \
- + __internal_syscall_body(name, 2, arg1, arg2); \
- + __syscall_return(type, d0_retval); \
- +}
- +
- +#undef _syscall3
- +#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
- +type name(type1 arg1, type2 arg2, type3 arg3){ \
- + __internal_syscall_body(name, 3, arg1, arg2, arg3); \
- + __syscall_return(type, d0_retval); \
- +}
- +
- +#undef _syscall4
- +#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
- +type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4){ \
- + __internal_syscall_body(name, 4, arg1, arg2, arg3, arg4); \
- + __syscall_return(type, d0_retval); \
- +}
- +
- +#undef _syscall5
- +#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5) \
- +type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5){ \
- + __internal_syscall_body(name, 5, arg1, arg2, arg3, arg4, arg5); \
- + __syscall_return(type, d0_retval); \
- +}
- +
- +#undef _syscall6
- +#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5,type6,arg6) \
- +type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5, type6 arg6){ \
- + __internal_syscall_body(name, 6, arg1, arg2, arg3, arg4, arg5, arg6); \
- + __syscall_return(type, d0_retval); \
- +}
- +
- +#endif /* __ASSEMBLER__ */
- +#endif /* _BITS_SYSCALLS_H */
- --- /dev/null
- +++ b/libc/sysdeps/linux/ubicom32/bits/uClibc_arch_features.h
- @@ -0,0 +1,45 @@
- +/*
- + * Track misc arch-specific features that aren't config options
- + */
- +
- +#ifndef _BITS_UCLIBC_ARCH_FEATURES_H
- +#define _BITS_UCLIBC_ARCH_FEATURES_H
- +
- +/* instruction used when calling abort() to kill yourself */
- +/*#define __UCLIBC_ABORT_INSTRUCTION__ "asm instruction"*/
- +#undef __UCLIBC_ABORT_INSTRUCTION__
- +
- +/* can your target use syscall6() for mmap ? */
- +#undef __UCLIBC_MMAP_HAS_6_ARGS__
- +
- +/* does your target use syscall4() for truncate64 ? (32bit arches only) */
- +#undef __UCLIBC_TRUNCATE64_HAS_4_ARGS__
- +
- +/* does your target have a broken create_module() ? */
- +#undef __UCLIBC_BROKEN_CREATE_MODULE__
- +
- +/* does your target have to worry about older [gs]etrlimit() ? */
- +#undef __UCLIBC_HANDLE_OLDER_RLIMIT__
- +
- +/* does your target prefix all symbols with an _ ? */
- +#define __UCLIBC_NO_UNDERSCORES__
- +
- +/* does your target have an asm .set ? */
- +#define __UCLIBC_HAVE_ASM_SET_DIRECTIVE__
- +
- +/* define if target doesn't like .global */
- +#undef __UCLIBC_ASM_GLOBAL_DIRECTIVE__
- +
- +/* define if target supports .weak */
- +#define __UCLIBC_HAVE_ASM_WEAK_DIRECTIVE__
- +
- +/* define if target supports .weakext */
- +#undef __UCLIBC_HAVE_ASM_WEAKEXT_DIRECTIVE__
- +
- +/* needed probably only for ppc64 */
- +#undef __UCLIBC_HAVE_ASM_GLOBAL_DOT_NAME__
- +
- +/* define if target supports IEEE signed zero floats */
- +#define __UCLIBC_HAVE_SIGNED_ZERO__
- +
- +#endif /* _BITS_UCLIBC_ARCH_FEATURES_H */
- --- /dev/null
- +++ b/libc/sysdeps/linux/ubicom32/bits/wordsize.h
- @@ -0,0 +1,19 @@
- +/* Copyright (C) 1999 Free Software Foundation, Inc.
- + This file is part of the GNU C Library.
- +
- + The GNU C Library is free software; you can redistribute it and/or
- + modify it under the terms of the GNU Lesser General Public
- + License as published by the Free Software Foundation; either
- + version 2.1 of the License, or (at your option) any later version.
- +
- + The GNU C Library is distributed in the hope that it will be useful,
- + but WITHOUT ANY WARRANTY; without even the implied warranty of
- + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- + Lesser General Public License for more details.
- +
- + You should have received a copy of the GNU Lesser General Public
- + License along with the GNU C Library; if not, write to the Free
- + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- + 02111-1307 USA. */
- +
- +#define __WORDSIZE 32
- --- /dev/null
- +++ b/libc/sysdeps/linux/ubicom32/clone.S
- @@ -0,0 +1,71 @@
- +#include <sys/syscall.h>
- +
- + .global __syscall_error
- +
- +/* int _clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg); */
- + .text
- + .type clone,@function
- + .global clone
- +clone:
- + /* Sanity check arguments. */
- + sub.4 #0, #0, d0 /* Test if fn is zero. */
- + jmpeq.f 1f /* arg bad */
- + sub.4 #0, #0, d1 /* Test if child_stack is zero. */
- + jmpeq.f 1f /* arg bad */
- +
- + /* Set up child_stack frame.. arg and fn */
- + move.4 a3, d1
- + move.4 -4(a3)++, d3 /* push 'arg' to child stack */
- + move.4 -4(a3)++, d0 /* push fn to child stack, this will become a5
- + * on new child */
- + move.4 d1, a3
- + move.4 -4(sp)++, a5 /* push a5 to our stack */
- +
- + /*
- + * The syscall clone is clone(int flags, void *child_stack) so we set
- + * that up now
- + */
- + move.4 d0, d2 /* Move flags to d0 */
- +
- + /* Do Clone syscall */
- + movei d8, #__NR_clone
- + moveai a5, #%hi(0x40400000)
- + calli a5, 0x10(a5)
- + move.4 a5, (sp)4++ /* pop a5 from stack */
- +
- + /* Clone Complete */
- + cmpi d0, #0 /* Test if d0 is less than zero. If it is we
- + * return the error */
- + jmplt.f 2f /* If return is less than we had an error */
- + jmpeq.f 3f /* If return is 0 we are in the clone, jump to
- + * thread start */
- + ret a5 /* d0 is pid */
- +
- + /* Invalid Value */
- +1: movei d0, #-22 /* EINVAL */
- +
- + /* Call syscall Error */
- +2: sub.4 d0, #0, d0 /* d0 = -d0 */
- +#if defined(__UBICOM32_FDPIC__)
- + call a3, __syscall_error
- +#else
- + moveai a3, #%hi(__syscall_error)
- + calli a3, %lo(__syscall_error)(a3)
- +#endif
- + /* Child Thread Start */
- +3:
- +#if defined(__UBICOM32_FDPIC__)
- + /* a5 actually contains a function descriptor for fdpic */
- + move.4 a0, 4(a5) /* set GOT for this function */
- + move.4 a5, 0(a5) /* get address of entry point */
- +#endif
- + move.4 d0, (sp)4++ /* pop 'arg' to stack */
- + calli a5, 0(a5)
- + movei d8, #__NR_exit
- + moveai a3, #%hi(0x40400000)
- + calli a3, 0x10(a3)
- +
- + .size clone, . - clone
- + .global __GI_clone
- + .hidden __GI_clone
- + .set __GI_clone,clone
- --- /dev/null
- +++ b/libc/sysdeps/linux/ubicom32/crt1.S
- @@ -0,0 +1,179 @@
- +/* Startup code compliant to the ELF m68k ABI.
- + Copyright (C) 1996, 1997, 1998, 2001, 2002 Free Software Foundation, Inc.
- + This file is part of the GNU C Library.
- +
- + The GNU C Library is free software; you can redistribute it and/or
- + modify it under the terms of the GNU Lesser General Public
- + License as published by the Free Software Foundation; either
- + version 2.1 of the License, or (at your option) any later version.
- +
- + In addition to the permissions in the GNU Lesser General Public
- + License, the Free Software Foundation gives you unlimited
- + permission to link the compiled version of this file with other
- + programs, and to distribute those programs without any restriction
- + coming from the use of this file. (The GNU Lesser General Public
- + License restrictions do apply in other respects; for example, they
- + cover modification of the file, and distribution when not linked
- + into another program.)
- +
- + Note that people who make modified versions of this file are not
- + obligated to grant this special exception for their modified
- + versions; it is their choice whether to do so. The GNU Lesser
- + General Public License gives permission to release a modified
- + version without this exception; this exception also makes it
- + possible to release a modified version which carries forward this
- + exception.
- +
- + The GNU C Library is distributed in the hope that it will be useful,
- + but WITHOUT ANY WARRANTY; without even the implied warranty of
- + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- + Lesser General Public License for more details.
- +
- + You should have received a copy of the GNU Lesser General Public
- + License along with the GNU C Library; if not, write to the Free
- + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- + 02111-1307 USA. */
- +
- +#include <features.h>
- +
- +/* This is the canonical entry point, usually the first thing in the text
- + segment. The SVR4/m68k ABI says that when the entry point runs,
- + most registers' values are unspecified, except for:
- +
- + %a1 Contains a function pointer to be registered with `atexit'.
- + This is how the dynamic linker arranges to have DT_FINI
- + functions called for shared libraries that have been loaded
- + before this code runs.
- +
- + %sp The stack contains the arguments and environment:
- + 0(%sp) argc
- + 4(%sp) argv[0]
- + ...
- + (4*argc)(%sp) NULL
- + (4*(argc+1))(%sp) envp[0]
- + ...
- + NULL
- +
- + The uclinux conventions are different. %a1 is not defined on entry
- + and the stack is laid out as follows:
- +
- + 0(%sp) argc
- + 4(%sp) argv
- + 8(%sp) envp
- +*/
- +
- +
- + .text
- + .type main,@function
- + .type _init,%function
- + .type _fini,%function
- +#ifndef __UCLIBC_CTOR_DTOR__
- + .weak _init
- + .weak _fini
- +#endif
- + .globl _start
- + .global __uClibc_main;
- + .type __uClibc_main,@function;
- + .type _start,@function
- +_start:
- +
- +#if defined(__UBICOM32_FDPIC__) && !defined(L_Scrt1)
- + /* P0 contains a pointer to the program's load map. */
- + call a3, .Lcall;
- +.Lcall:
- + move.4 d0, d1 ; load exec_map_addr
- + moveai a4, #%hi(.Lcall)
- + lea.1 d15, %lo(.Lcall)(a4)
- + sub.4 d15, a3, d15 ; difference between .Lcall and actual address of .Lcall
- + moveai a3, #%hi(__ROFIXUP_LIST__)
- + lea.1 d1, %lo(__ROFIXUP_LIST__)(a3)
- + moveai a3, #%hi(__ROFIXUP_END__)
- + lea.1 d2, %lo(__ROFIXUP_END__)(a3)
- + add.4 d1, d1, d15
- + add.4 d2, d2, d15
- + call a5, __self_reloc ; returns GOT in d0
- + move.4 a0, d0 ; set GOT
- +#endif
- +
- +/*
- + all this is setup to make the following call.
- +
- + void __uClibc_main(
- + d0 - int (*main)(int, char **, char **),
- + d1 - int argc, (d1)
- + d2 - char **argv,
- + d3 - void (*app_init)(void),
- + d4 - void (*app_fini)(void),
- + d5 - void (*rtld_fini)(void),
- + d6 - void *stack_end
- + );
- + */
- +
- + /*
- + * Load pointer to main into d0
- + */
- +#ifdef __UBICOM32_FDPIC__
- + movei d0, #%got_funcdesc_lo(main)
- + move.4 d0, (a0, d0)
- +#else
- + moveai a3, #%hi(main)
- + lea.1 d0, %lo(main)(a3)
- +#endif
- +
- + /*
- + * Grab the environment stuff from stack and set up d1, d2 with it.
- + */
- + move.4 d1, (sp)
- +#ifdef __UBICOM32_FDPIC__
- + /* For FDPIC the calling convention is different than flat */
- + lea.1 d2, 4(sp)
- +#else
- + move.4 d2, 4(sp)
- +#endif
- +
- +#ifdef __UCLIBC_CTOR_DTOR__
- + /*
- + * Load pointer to _init into d3
- + */
- +#ifdef __UBICOM32_FDPIC__
- + movei d3, #%got_funcdesc_lo(_init)
- + move.4 d3, (a0, d3)
- +#else
- + moveai a3, #%hi(_init)
- + lea.1 d3, %lo(_init)(a3)
- +#endif
- +
- + /*
- + * Load pointer to _fini into d4
- + */
- +#ifdef __UBICOM32_FDPIC__
- + movei d4, #%got_funcdesc_lo(_fini)
- + move.4 d4, (a0, d4)
- +#else
- + moveai a3, #%hi(_fini)
- + lea.1 d4, %lo(_fini)(a3)
- +#endif
- +
- +#else /* !__UCLIBC_CTOR_DTOR__ */
- + move.4 d3, #0 ; _init
- + move.4 d4, #0 ; _fini
- +#endif
- +
- +#ifdef __UBICOM32_FDPIC__
- + move.4 d5, a1 ; ldso _fini funcdesc (see dl-startup.h)
- +#else
- + movei d5, #0 ; rtld_fini (not used)
- +#endif
- +
- + move.4 d6, sp ; Stack End.
- +
- + /* Call the user's main function, and exit with its value. But
- + let the libc call main. */
- +#ifdef __UBICOM32_FDPIC__
- + call a5, __uClibc_main
- +#else
- + moveai a5, #%hi(__uClibc_main)
- + calli a5, %lo(__uClibc_main)(a5)
- +#endif
- +
- + bkpt #-1 ; Crash if somehow `exit' does return.
- --- /dev/null
- +++ b/libc/sysdeps/linux/ubicom32/crti.S
- @@ -0,0 +1,54 @@
- +/* Specialized code needed to support construction and destruction of
- + file-scope objects in C++ and Java code, and to support exception handling.
- + Copyright (C) 1999 Free Software Foundation, Inc.
- + Contributed by Charles-Antoine Gauthier ([email protected]).
- +
- +This file is part of GCC.
- +
- +GCC is free software; you can redistribute it and/or modify
- +it under the terms of the GNU General Public License as published by
- +the Free Software Foundation; either version 2, or (at your option)
- +any later version.
- +
- +GCC is distributed in the hope that it will be useful,
- +but WITHOUT ANY WARRANTY; without even the implied warranty of
- +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- +GNU General Public License for more details.
- +
- +You should have received a copy of the GNU General Public License
- +along with GCC; see the file COPYING. If not, write to
- +the Free Software Foundation, 59 Temple Place - Suite 330,
- +Boston, MA 02111-1307, USA. */
- +
- +/* As a special exception, if you link this library with files
- + compiled with GCC to produce an executable, this does not cause
- + the resulting executable to be covered by the GNU General Public License.
- + This exception does not however invalidate any other reasons why
- + the executable file might be covered by the GNU General Public License. */
- +
- +/*
- + * This file just supplies function prologues for the .init and .fini
- + * sections. It is linked in before crtbegin.o.
- + */
- + .file "crti.o"
- + .ident "GNU C crti.o"
- +
- + .section .init
- + .align 2
- + .globl _init
- + .type _init, @function
- +_init:
- + move.4 -4(sp)++, a5
- +#ifdef __UBICOM32_FDPIC__
- + move.4 -4(sp)++, a0
- +#endif
- +
- + .section .fini
- + .align 2
- + .globl _fini
- + .type _fini, @function
- +_fini:
- + move.4 -4(sp)++, a5
- +#ifdef __UBICOM32_FDPIC__
- + move.4 -4(sp)++, a0
- +#endif
- --- /dev/null
- +++ b/libc/sysdeps/linux/ubicom32/crtn.S
- @@ -0,0 +1,47 @@
- +/* Specialized code needed to support construction and destruction of
- + file-scope objects in C++ and Java code, and to support exception handling.
- + Copyright (C) 1999 Free Software Foundation, Inc.
- + Contributed by Charles-Antoine Gauthier ([email protected]).
- +
- +This file is part of GCC.
- +
- +GCC is free software; you can redistribute it and/or modify
- +it under the terms of the GNU General Public License as published by
- +the Free Software Foundation; either version 2, or (at your option)
- +any later version.
- +
- +GCC is distributed in the hope that it will be useful,
- +but WITHOUT ANY WARRANTY; without even the implied warranty of
- +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- +GNU General Public License for more details.
- +
- +You should have received a copy of the GNU General Public License
- +along with GCC; see the file COPYING. If not, write to
- +the Free Software Foundation, 59 Temple Place - Suite 330,
- +Boston, MA 02111-1307, USA. */
- +
- +/* As a special exception, if you link this library with files
- + compiled with GCC to produce an executable, this does not cause
- + the resulting executable to be covered by the GNU General Public License.
- + This exception does not however invalidate any other reasons why
- + the executable file might be covered by the GNU General Public License. */
- +
- +/*
- + * This file supplies function epilogues for the .init and .fini sections.
- + * It is linked in after all other files.
- + */
- +
- + .file "crtn.o"
- + .ident "GNU C crtn.o"
- +
- + .section .init
- +#ifdef __UBICOM32_FDPIC__
- + move.4 a0, (sp)4++
- +#endif
- + ret (sp)4++
- +
- + .section .fini
- +#ifdef __UBICOM32_FDPIC__
- + move.4 a0, (sp)4++
- +#endif
- + ret (sp)4++
- --- /dev/null
- +++ b/libc/sysdeps/linux/ubicom32/crtreloc.c
- @@ -0,0 +1,145 @@
- +/* Copyright (C) 2003, 2004 Free Software Foundation, Inc.
- + written by Alexandre Oliva <[email protected]>
- +This file is part of the GNU C Library.
- +
- +The GNU C Library is free software; you can redistribute it and/or
- +modify it under the terms of the GNU Lesser General Public License as
- +published by the Free Software Foundation; either version 2.1 of the
- +License, or (at your option) any later version.
- +
- +In addition to the permissions in the GNU Lesser General Public
- +License, the Free Software Foundation gives you unlimited
- +permission to link the compiled version of this file with other
- +programs, and to distribute those programs without any restriction
- +coming from the use of this file. (The GNU Lesser General Public
- +License restrictions do apply in other respects; for example, they
- +cover modification of the file, and distribution when not linked
- +into another program.)
- +
- +The GNU C Library is distributed in the hope that it will be useful,
- +but WITHOUT ANY WARRANTY; without even the implied warranty of
- +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- +Library General Public License for more details.
- +
- +You should have received a copy of the GNU Lesser General Public
- +License along with the GNU C Library; see the file COPYING.LIB. If
- +not, write to the Free Software Foundation, Inc., 675 Mass Ave,
- +Cambridge, MA 02139, USA. */
- +
- +#ifdef __UBICOM32_FDPIC__
- +
- +#include <sys/types.h>
- +#include <link.h>
- +
- +/* This file is to be compiled into crt object files, to enable
- + executables to easily self-relocate. */
- +
- +union word {
- + char c[4];
- + void *v;
- +};
- +
- +/* Compute the runtime address of pointer in the range [p,e), and then
- + map the pointer pointed by it. */
- +static __always_inline void ***
- +reloc_range_indirect (void ***p, void ***e,
- + const struct elf32_fdpic_loadmap *map)
- +{
- + while (p < e)
- + {
- + if (*p != (void **)-1)
- + {
- + void *ptr = __reloc_pointer (*p, map);
- + if (ptr != (void *)-1)
- + {
- + void *pt;
- + if ((long)ptr & 3)
- + {
- + unsigned char *c = ptr;
- + int i;
- + unsigned long v = 0;
- + for (i = 0; i < 4; i++)
- + v |= c[i] << 8 * i;
- + pt = (void *)v;
- + }
- + else
- + pt = *(void**)ptr;
- + pt = __reloc_pointer (pt, map);
- + if ((long)ptr & 3)
- + {
- + unsigned char *c = ptr;
- + int i;
- + unsigned long v = (unsigned long)pt;
- + for (i = 0; i < 4; i++, v >>= 8)
- + c[i] = v;
- + }
- + else
- + *(void**)ptr = pt;
- + }
- + }
- + p++;
- + }
- + return p;
- +}
- +
- +/* Call __reloc_range_indirect for the given range except for the last
- + entry, whose contents are only relocated. It's expected to hold
- + the GOT value. */
- +void* attribute_hidden
- +__self_reloc (const struct elf32_fdpic_loadmap *map,
- + void ***p, void ***e)
- +{
- + p = reloc_range_indirect (p, e-1, map);
- +
- + if (p >= e)
- + return (void*)-1;
- +
- + return __reloc_pointer (*p, map);
- +}
- +
- +#if 0
- +/* These are other functions that might be useful, but that we don't
- + need. */
- +
- +/* Remap pointers in [p,e). */
- +static __always_inline void**
- +reloc_range (void **p, void **e,
- + const struct elf32_fdpic_loadmap *map)
- +{
- + while (p < e)
- + {
- + *p = __reloc_pointer (*p, map);
- + p++;
- + }
- + return p;
- +}
- +
- +/* Remap p, adjust e by the same offset, then map the pointers in the
- + range determined by them. */
- +void attribute_hidden
- +__reloc_range (const struct elf32_fdpic_loadmap *map,
- + void **p, void **e)
- +{
- + void **old = p;
- +
- + p = __reloc_pointer (p, map);
- + e += p - old;
- + reloc_range (p, e, map);
- +}
- +
- +/* Remap p, adjust e by the same offset, then map pointers referenced
- + by the (unadjusted) pointers in the range. Return the relocated
- + value of the last pointer in the range. */
- +void* attribute_hidden
- +__reloc_range_indirect (const struct elf32_fdpic_loadmap *map,
- + void ***p, void ***e)
- +{
- + void ***old = p;
- +
- + p = __reloc_pointer (p, map);
- + e += p - old;
- + return reloc_range_indirect (p, e, map);
- +}
- +#endif
- +
- +#endif /* __UBICOM32_FDPIC__ */
- --- /dev/null
- +++ b/libc/sysdeps/linux/ubicom32/setjmp.S
- @@ -0,0 +1,72 @@
- +/* Setjmp for Ubicom32 */
- + .text
- + .global _setjmp
- + .type _setjmp,@function
- +_setjmp:
- + movea a3, d0 ; A3 now holds the jmp buf that was passed in.
- + move.4 (a3)4++, d10
- + move.4 (a3)4++, d11
- + move.4 (a3)4++, d12
- + move.4 (a3)4++, d13
- + move.4 (a3)4++, a1
- + move.4 (a3)4++, a2
- + move.4 (a3)4++, a5
- + move.4 (a3)4++, a6
- + move.4 (a3)4++, a7
- + move.4 d0, #0
- +
- + calli a5, 0(a5)
- + .size _setjmp, . - _setjmp
- +
- +/*
- + * __sigsetjmp for Ubicom32
- + * d0 holds sigjmp_buf and d1 holds the savemask. We will save the frame and then just call __sigjmp_save to do the mask save.
- + */
- + .global __sigsetjmp
- + .type __sigsetjmp,@function
- +__sigsetjmp:
- + movea a3, d0 ; A3 now holds the jmp buf that was passed in.
- + move.4 (a3)4++, d10
- + move.4 (a3)4++, d11
- + move.4 (a3)4++, d12
- + move.4 (a3)4++, d13
- + move.4 (a3)4++, a1
- + move.4 (a3)4++, a2
- + move.4 (a3)4++, a5
- + move.4 (a3)4++, a6
- + move.4 (a3)4++, a7
- +
- + ;; The frame has been saved. Call _sigjmp_save to get sigmask saved. a5 still has the return address and it will go back to that.
- +#if defined(__UBICOM32_FDPIC__)
- + call a3, __sigjmp_save
- +#else
- + moveai a3, #%hi(__sigjmp_save)
- + calli a3, %lo(__sigjmp_save)(a3)
- +#endif
- + .size __sigjmp_save, . - __sigjmp_save
- +
- + .global __longjmp
- + .type __longjmp,@function
- +__longjmp:
- + movea a3, d0 ; A3 now holds the jmp buf that was passed in.
- + move.4 d10, (a3)4++
- + move.4 d11, (a3)4++
- + move.4 d12, (a3)4++
- + move.4 d13, (a3)4++
- + move.4 a1 , (a3)4++
- + move.4 a2 , (a3)4++
- + move.4 a5 , (a3)4++
- + move.4 a6 , (a3)4++
- + move.4 a7 , (a3)4++
- +
- + sub.4 #0, #0, d1 ; Test if d1 is zero. If it is we have to return 1 other wise return content of d1
- + jmpeq.t 2f
- + move.4 d0, d1 ; d1 is non zero load it into d0
- + jmpt.t 3f
- +
- +2: move.4 d0, #1
- +3: calli a5, 0(a5)
- + .size __longjmp, . - __longjmp
- + .global __GI___longjmp
- + .hidden __GI___longjmp
- + .set __GI___longjmp,__longjmp
- --- /dev/null
- +++ b/libc/sysdeps/linux/ubicom32/sys/procfs.h
- @@ -0,0 +1,122 @@
- +/* Copyright (C) 1996, 1997, 1999, 2000 Free Software Foundation, Inc.
- + This file is part of the GNU C Library.
- +
- + The GNU C Library is free software; you can redistribute it and/or
- + modify it under the terms of the GNU Lesser General Public
- + License as published by the Free Software Foundation; either
- + version 2.1 of the License, or (at your option) any later version.
- +
- + The GNU C Library is distributed in the hope that it will be useful,
- + but WITHOUT ANY WARRANTY; without even the implied warranty of
- + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- + Lesser General Public License for more details.
- +
- + You should have received a copy of the GNU Lesser General Public
- + License along with the GNU C Library; if not, write to the Free
- + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- + 02111-1307 USA. */
- +
- +#ifndef _SYS_PROCFS_H
- +#define _SYS_PROCFS_H 1
- +
- +/* This is somehow modelled after the file of the same name on SysVr4
- + systems. It provides a definition of the core file format for ELF
- + used on Linux. */
- +
- +#include <features.h>
- +#include <signal.h>
- +#include <sys/time.h>
- +#include <sys/types.h>
- +#include <sys/ucontext.h>
- +#include <bits/wordsize.h>
- +
- +__BEGIN_DECLS
- +
- +#define ELF_NGREG 38
- +
- +typedef struct
- + {
- + union
- + {
- + unsigned long pr_regs[32];
- + double pr_dregs[16];
- + } pr_fr;
- + unsigned long __unused;
- + unsigned long pr_fsr;
- + unsigned char pr_qcnt;
- + unsigned char pr_q_entrysize;
- + unsigned char pr_en;
- + unsigned int pr_q[64];
- + } elf_fpregset_t;
- +
- +typedef unsigned long elf_greg_t;
- +typedef elf_greg_t elf_gregset_t[ELF_NGREG];
- +
- +struct elf_siginfo
- + {
- + int si_signo; /* Signal number. */
- + int si_code; /* Extra code. */
- + int si_errno; /* Errno. */
- + };
- +
- +/* Definitions to generate Intel SVR4-like core files. These mostly
- + have the same names as the SVR4 types with "elf_" tacked on the
- + front to prevent clashes with linux definitions, and the typedef
- + forms have been avoided. This is mostly like the SVR4 structure,
- + but more Linuxy, with things that Linux does not support and which
- + gdb doesn't really use excluded. Fields present but not used are
- + marked with "XXX". */
- +struct elf_prstatus
- + {
- + struct elf_siginfo pr_info; /* Info associated with signal. */
- + short int pr_cursig; /* Current signal. */
- + unsigned long int pr_sigpend; /* Set of pending signals. */
- + unsigned long int pr_sighold; /* Set of held signals. */
- + __pid_t pr_pid;
- + __pid_t pr_ppid;
- + __pid_t pr_pgrp;
- + __pid_t pr_sid;
- + struct timeval pr_utime; /* User time. */
- + struct timeval pr_stime; /* System time. */
- + struct timeval pr_cutime; /* Cumulative user time. */
- + struct timeval pr_cstime; /* Cumulative system time. */
- + elf_gregset_t pr_reg; /* GP registers. */
- + int pr_fpvalid; /* True if math copro being used. */
- + };
- +
- +
- +#define ELF_PRARGSZ (80) /* Number of chars for args */
- +
- +struct elf_prpsinfo
- + {
- + char pr_state; /* Numeric process state. */
- + char pr_sname; /* Char for pr_state. */
- + char pr_zomb; /* Zombie. */
- + char pr_nice; /* Nice val. */
- + unsigned long int pr_flag; /* Flags. */
- + unsigned short int pr_uid;
- + unsigned short int pr_gid;
- + int pr_pid, pr_ppid, pr_pgrp, pr_sid;
- + /* Lots missing */
- + char pr_fname[16]; /* Filename of executable. */
- + char pr_psargs[ELF_PRARGSZ]; /* Initial part of arg list. */
- + };
- +
- +/* Addresses. */
- +typedef void *psaddr_t;
- +
- +/* Register sets. Linux has different names. */
- +typedef elf_gregset_t prgregset_t;
- +typedef elf_fpregset_t prfpregset_t;
- +
- +/* We don't have any differences between processes and threads,
- + therefore have only one PID type. */
- +typedef __pid_t lwpid_t;
- +
- +
- +typedef struct elf_prstatus prstatus_t;
- +typedef struct elf_prpsinfo prpsinfo_t;
- +
- +__END_DECLS
- +
- +#endif /* sys/procfs.h */
- --- /dev/null
- +++ b/libc/sysdeps/linux/ubicom32/sys/ucontext.h
- @@ -0,0 +1,104 @@
- +/* Copyright (C) 1998, 1999 Free Software Foundation, Inc.
- + This file is part of the GNU C Library.
- +
- + The GNU C Library is free software; you can redistribute it and/or
- + modify it under the terms of the GNU Lesser General Public
- + License as published by the Free Software Foundation; either
- + version 2.1 of the License, or (at your option) any later version.
- +
- + The GNU C Library is distributed in the hope that it will be useful,
- + but WITHOUT ANY WARRANTY; without even the implied warranty of
- + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- + Lesser General Public License for more details.
- +
- + You should have received a copy of the GNU Lesser General Public
- + License along with the GNU C Library; if not, write to the Free
- + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- + 02111-1307 USA. */
- +
- +#ifndef _SYS_UCONTEXT_H
- +#define _SYS_UCONTEXT_H 1
- +
- +#include <features.h>
- +#include <signal.h>
- +/*
- + * Location of the users' stored registers relative to R0.
- + * Usage is as an index into a gregset_t array or as u.u_ar0[XX].
- + */
- +#define REG_PSR (0)
- +#define REG_PC (1)
- +#define REG_SPARE (2)
- +#define REG_WVALID (3)
- +#define REG_G1 (4)
- +#define REG_G2 (5)
- +#define REG_G3 (6)
- +#define REG_G4 (7)
- +#define REG_G5 (8)
- +#define REG_G6 (9)
- +#define REG_G7 (10)
- +#define REG_O0 (11)
- +#define REG_O1 (12)
- +#define REG_O2 (13)
- +#define REG_O3 (14)
- +#define REG_O4 (15)
- +#define REG_O5 (16)
- +#define REG_O6 (17)
- +#define REG_O7 (18)
- +#define REG_GLOBALS (19)
- +
- +/*
- + * A gregset_t is defined as an array type for compatibility with the reference
- + * source. This is important due to differences in the way the C language
- + * treats arrays and structures as parameters.
- + *
- + * Note that NGREG is really (sizeof (struct regs) / sizeof (greg_t)),
- + * but that the ABI defines it absolutely to be 21 (resp. 19).
- + */
- +
- +#define NGREG 20
- +typedef int greg_t;
- +
- +typedef greg_t gregset_t[NGREG];
- +
- +/*
- + * The following structures define how a register window can appear on the
- + * stack. This structure is available (when required) through the `gwins'
- + * field of an mcontext (nested within ucontext). NIOS_MAXWINDOW is the
- + * maximum number of outstanding register windows defined in the NIOS
- + * architecture (*not* implementation).
- + */
- +#define NIOS_MAXREGWINDOW 31 /* max windows in NIOS arch. */
- +struct rwindow
- + {
- + greg_t rw_local[8]; /* locals */
- + greg_t rw_in[8]; /* ins */
- + };
- +
- +#define rw_fp rw_in[6] /* frame pointer */
- +#define rw_rtn rw_in[7] /* return address */
- +
- +typedef struct gwindows
- + {
- + int wbcnt;
- + int *spbuf[NIOS_MAXREGWINDOW];
- + struct rwindow wbuf[NIOS_MAXREGWINDOW];
- + } gwindows_t;
- +
- +typedef struct
- + {
- + gregset_t gregs; /* general register set */
- + gwindows_t *gwins; /* POSSIBLE pointer to register windows */
- + } mcontext_t;
- +
- +
- +/* Userlevel context. */
- +typedef struct ucontext
- + {
- + unsigned long uc_flags;
- + struct ucontext *uc_link;
- + __sigset_t uc_sigmask;
- + stack_t uc_stack;
- + mcontext_t uc_mcontext;
- + } ucontext_t;
- +
- +#endif /* sys/ucontext.h */
- --- /dev/null
- +++ b/libc/sysdeps/linux/ubicom32/syscall.c
- @@ -0,0 +1,32 @@
- +/* vi: set sw=4 ts=4: */
- +/* syscall for ubicom32/uClibc
- + *
- + * Copyright (C) 2008 by Ubicom Inc.
- + * Copyright (C) 2002 by Erik Andersen <[email protected]>
- + *
- + * This program is free software; you can redistribute it and/or modify it
- + * under the terms of the GNU Library General Public License as published by
- + * the Free Software Foundation; either version 2 of the License, or (at your
- + * option) any later version.
- + *
- + * This program is distributed in the hope that it will be useful, but WITHOUT
- + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
- + * for more details.
- + *
- + * You should have received a copy of the GNU Library General Public License
- + * along with this program; if not, write to the Free Software Foundation,
- + * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- + */
- +
- +#include <features.h>
- +#include <errno.h>
- +#include <sys/types.h>
- +#include <sys/syscall.h>
- +
- +extern long syscall(long sysnum, long a, long b, long c, long d, long e, long f);
- +long syscall(long sysnum, long a, long b, long c, long d, long e, long f)
- +{
- + int __NR_syscall_number = sysnum;
- + return (long) INLINE_SYSCALL(syscall_number, 6, a, b, c, d, e, f);
- +}
- --- /dev/null
- +++ b/libc/sysdeps/linux/ubicom32/vfork.S
- @@ -0,0 +1,35 @@
- +#include <sys/syscall.h>
- +
- + .text
- + .type vfork,@function
- + .global vfork
- +vfork:
- + move.4 -4(sp)++, a5 ; Save return address on the stack.
- + movei d8, #__NR_vfork
- + moveai a3, #%hi(0x40400000)
- + calli a5, 0x10(a3)
- +
- + /*
- + * You get here only if the syscall bombed. If things had worked out the
- + * parent and child would have both returned to the instruction after
- + * the vfork call.
- + */
- + move.4 a5, (sp)4++ ; Pop the return address off the stack.
- + movei d1, #-125
- + sub.4 #0, d0, d1
- + jmplt.t 1f
- +
- + ;; We have an error.
- + sub.4 d0, #0, d0 ; d0 = -res. Call __set_errno with that.
- +#if defined(__UBICOM32_FDPIC__)
- + call a3, __syscall_error
- +#else
- + moveai a3, #%hi(__syscall_error)
- + calli a3, %lo(__syscall_error)(a3) ; __syscall_error will return -1 and not come back here.
- +#endif
- +1:
- + calli a5, 0(a5)
- + .size vfork, . - vfork
- + .global __GI_vfork
- + .hidden __GI_vfork
- + .set __GI_vfork,vfork
- --- a/libpthread/linuxthreads.old/pthread.c
- +++ b/libpthread/linuxthreads.old/pthread.c
- @@ -393,6 +393,10 @@ void __pthread_initialize_minimal(void)
- #endif
-
- __libc_multiple_threads_ptr = __libc_pthread_init (ptr_pthread_functions);
- +#ifndef __ARCH_USE_MMU__
- + __pthread_initial_thread_tos =
- + (char *)(((long)CURRENT_STACK_FRAME + getpagesize()) & ~(getpagesize() - 1));
- +#endif /* __ARCH_USE_MMU__ */
- }
-
-
- @@ -461,8 +465,11 @@ static void pthread_initialize(void)
- * __pthread_initial_thread_bos at address 0. These bounds are refined as we
- * malloc other stack frames such that they don't overlap. -StS
- */
- - __pthread_initial_thread_tos =
- - (char *)(((long)CURRENT_STACK_FRAME + getpagesize()) & ~(getpagesize() - 1));
- + if (__pthread_initial_thread_tos == NULL) {
- + __pthread_initial_thread_tos =
- + (char *)(((long)CURRENT_STACK_FRAME + getpagesize()) & ~(getpagesize() - 1));
- + }
- +
- __pthread_initial_thread_bos = (char *) 1; /* set it non-zero so we know we have been here */
- PDEBUG("initial thread stack bounds: bos=%p, tos=%p\n",
- __pthread_initial_thread_bos, __pthread_initial_thread_tos);
- --- /dev/null
- +++ b/libpthread/linuxthreads.old/sysdeps/ubicom32/pt-machine.h
- @@ -0,0 +1,68 @@
- +/* Machine-dependent pthreads configuration and inline functions.
- +
- + Copyright (C) 1996, 1997, 1998, 2000, 2002, 2003, 2004
- + Free Software Foundation, Inc.
- + This file is part of the GNU C Library.
- + Contributed by Ralf Baechle <[email protected]>.
- + Based on the Alpha version by Richard Henderson <[email protected]>.
- +
- + The GNU C Library is free software; you can redistribute it and/or
- + modify it under the terms of the GNU Lesser General Public License as
- + published by the Free Software Foundation; either version 2.1 of the
- + License, or (at your option) any later version.
- +
- + The GNU C Library is distributed in the hope that it will be useful,
- + but WITHOUT ANY WARRANTY; without even the implied warranty of
- + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- + Lesser General Public License for more details.
- +
- + You should have received a copy of the GNU Lesser General Public
- + License along with the GNU C Library; see the file COPYING.LIB. If
- + not, write to the Free Software Foundation, Inc.,
- + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
- +
- +#ifndef _PT_MACHINE_H
- +#define _PT_MACHINE_H 1
- +
- +#include <features.h>
- +
- +/*
- + * XXX try to make this inline
- + */
- +extern long int testandset (int *spinlock);
- +
- +#ifndef PT_EI
- +#define PT_EI
- +#else
- +/* Spinlock implementation; required. */
- +
- +/*
- + * testandset() is the basis for the pthread spin lock.
- + *
- + * This implementation only requires that we 'set' the state of *spinlock. As
- + * bset is allows us to atomically 'testandset' a single bit define our 'set' is
- + * such that we will set bit 0 (ignoring all other bits, which should also be
- + * zero).
- + * Return value of 1 implies that the bit was already set and is still
- + * set.
- + * Return value of 0 implies that the bit was not previously set but it
- + * now is.
- + */
- +long int
- +testandset (int *spinlock)
- +{
- + int ret;
- + __asm__ volatile (
- + " move.4 %0, #0 \n\t" /* Assume that the bit is not currently set */
- + " bset %1, %1, #0 \n\t" /* Attempt to 'set' bit 0 */
- + " jmpeq.t 1f \n\t"
- + " move.4 %0, #1 \n\t" /* Bit was already set, so return 1 */
- + " 1: \n\t"
- + : "=r"(ret), "+U4"(*spinlock)
- + :
- + : "memory", "cc"
- + );
- + return ret;
- +}
- +#endif
- +#endif /* pt-machine.h */
- --- /dev/null
- +++ b/libpthread/linuxthreads.old/sysdeps/ubicom32/tls.h
- @@ -0,0 +1,26 @@
- +/* Definitions for thread-local data handling. linuxthreads/MIPS version.
- + Copyright (C) 2005 Free Software Foundation, Inc.
- + This file is part of the GNU C Library.
- +
- + The GNU C Library is free software; you can redistribute it and/or
- + modify it under the terms of the GNU Lesser General Public
- + License as published by the Free Software Foundation; either
- + version 2.1 of the License, or (at your option) any later version.
- +
- + The GNU C Library is distributed in the hope that it will be useful,
- + but WITHOUT ANY WARRANTY; without even the implied warranty of
- + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- + Lesser General Public License for more details.
- +
- + You should have received a copy of the GNU Lesser General Public
- + License along with the GNU C Library; if not, write to the Free
- + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- + 02111-1307 USA. */
- +
- +#ifndef _TLS_H
- +#define _TLS_H
- +#ifdef HAVE_TLS_SUPPORT
- +#warning no tls support
- +#undef USE_TLS
- +#endif
- +#endif /* tls.h */
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