tools: add option BUILD_ALL_HOST_TOOLS to compile all host tools

Add option to compile all host tools even if not needed.
This can be useful to prepare a universal precompiled host tools
archive to use in another buildroot and speedup compilation.

Signed-off-by: Christian Marangi <[email protected]>

config/Config-devel.in

@@ -45,6 +45,13 @@ menuconfig DEVEL
 		  This allows you to symlink build_dir into a scratch location, e.g. a ramdisk,
 		  which does not have enough space to keep a complete build_dir.
 
+	config BUILD_ALL_HOST_TOOLS
+		bool "Compile all host tools" if DEVEL
+		default n
+		help
+		  Compile all host host tools even if not needed. This is needed to prepare a
+		  universal precompiled host tools archive to use in another buildroot.
+
 	config BUILD_SUFFIX
 		string "Build suffix to append to the target BUILD_DIR variable" if DEVEL
 		default ""

tools/Makefile

@@ -26,17 +26,17 @@ tools-y += e2fsprogs expat fakeroot findutils firmware-utils flex gengetopt
 tools-y += libressl libtool lzma m4 make-ext4fs meson missing-macros mkimage
 tools-y += mklibs mtd-utils mtools ninja padjffs2 patch-image
 tools-y += patchelf pkgconf quilt squashfskit4 sstrip zip zlib zstd
-tools-$(BUILD_B43_TOOLS) += b43-tools
-tools-$(BUILD_ISL) += isl
-tools-$(BUILD_TOOLCHAIN) += gmp mpc mpfr
-tools-$(CONFIG_TARGET_apm821xx)$(CONFIG_TARGET_gemini) += genext2fs
-tools-$(CONFIG_TARGET_ath79) += lzma-old squashfs
-tools-$(CONFIG_TARGET_mxs) += elftosb sdimage
-tools-$(CONFIG_TARGET_realtek) += 7z
-tools-$(CONFIG_TARGET_tegra) += cbootimage cbootimage-configs
-tools-$(CONFIG_USES_MINOR) += kernel2minor
-tools-$(CONFIG_USE_SPARSE) += sparse
-tools-$(CONFIG_USE_LLVM_BUILD) += llvm-bpf
+tools-$(if $(CONFIG_BUILD_ALL_HOST_TOOLS)$(BUILD_B43_TOOLS),y) += b43-tools
+tools-$(if $(CONFIG_BUILD_ALL_HOST_TOOLS)$(BUILD_ISL),y) += isl
+tools-$(if $(CONFIG_BUILD_ALL_HOST_TOOLS)$(BUILD_TOOLCHAIN),y) += gmp mpc mpfr
+tools-$(if $(CONFIG_BUILD_ALL_HOST_TOOLS)$(CONFIG_TARGET_apm821xx)$(CONFIG_TARGET_gemini),y) += genext2fs
+tools-$(if $(CONFIG_BUILD_ALL_HOST_TOOLS)$(CONFIG_TARGET_ath79),y) += lzma-old squashfs
+tools-$(if $(CONFIG_BUILD_ALL_HOST_TOOLS)$(CONFIG_TARGET_mxs),y) += elftosb sdimage
+tools-$(if $(CONFIG_BUILD_ALL_HOST_TOOLS)$(CONFIG_TARGET_realtek),y) += 7z
+tools-$(if $(CONFIG_BUILD_ALL_HOST_TOOLS)$(CONFIG_TARGET_tegra),y) += cbootimage cbootimage-configs
+tools-$(if $(CONFIG_BUILD_ALL_HOST_TOOLS)$(CONFIG_USES_MINOR),y) += kernel2minor
+tools-$(if $(CONFIG_BUILD_ALL_HOST_TOOLS)$(CONFIG_USE_SPARSE),y) += sparse
+tools-$(if $(CONFIG_BUILD_ALL_HOST_TOOLS)$(CONFIG_USE_LLVM_BUILD),y) += llvm-bpf
 
 # builddir dependencies
 $(curdir)/autoconf/compile := $(curdir)/m4/compile
@@ -85,7 +85,7 @@ ifeq ($(HOST_OS),Darwin)
 else
   $(curdir)/dwarves/compile += $(curdir)/elfutils/compile
   $(curdir)/elfutils/compile := $(curdir)/m4/compile $(curdir)/zlib/compile
-  tools-$(CONFIG_DWARVES) += dwarves
+  tools-$(if $(CONFIG_BUILD_ALL_HOST_TOOLS)$(CONFIG_DWARVES),y) += dwarves
   tools-y += elfutils
 endif