From: Thomas Petazzoni Date: Mon, 2 Sep 2013 16:06:33 +0000 (+0200) Subject: toolchain: add support for glibc X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=14a2d0b5ab87d16fa405b52612b181bfca03da20;p=buildroot.git toolchain: add support for glibc The support for eglibc 2.17 was added to the internal toolchain backend for 2013.08. This commit now adds glibc 2.18 support to the internal toolchain backend. Since the building procedure is very similar to the one of eglibc, we have renamed the 'eglibc' package to 'glibc', and made it capable of handling either glibc or eglibc. Signed-off-by: Thomas Petazzoni Signed-off-by: Peter Korsgaard --- diff --git a/package/eglibc/eglibc.mk b/package/eglibc/eglibc.mk deleted file mode 100644 index 0ed908d398..0000000000 --- a/package/eglibc/eglibc.mk +++ /dev/null @@ -1,99 +0,0 @@ -################################################################################ -# -# eglibc -# -################################################################################ - -EGLIBC_VERSION = 2.17-svnr22064 -EGLIBC_SITE = http://downloads.yoctoproject.org/releases/eglibc/ -EGLIBC_SOURCE = eglibc-$(EGLIBC_VERSION).tar.bz2 -EGLIBC_LICENSE = GPLv2+ (programs), LGPLv2.1+, BSD-3c, MIT (library) -EGLIBC_LICENSE_FILES = libc/COPYING libc/COPYING.LIB libc/LICENSES - -# Before eglibc is configured, we must have the first stage -# cross-compiler and the kernel headers -EGLIBC_DEPENDENCIES = host-gcc-initial linux-headers host-gawk - -# Before eglibc is built, we must have the second stage -# cross-compiler, for some gcc versions -eglibc-build: $(if $(BR2_TOOLCHAIN_NEEDS_THREE_STAGE_BUILD),host-gcc-intermediate) - -EGLIBC_SUBDIR = build - -EGLIBC_INSTALL_STAGING = YES - -EGLIBC_INSTALL_STAGING_OPT = install_root=$(STAGING_DIR) install - -# Thumb build is broken, build in ARM mode -ifeq ($(BR2_ARM_INSTRUCTIONS_THUMB),y) -EGLIBC_EXTRA_CFLAGS += -marm -endif - -# Even though we use the autotools-package infrastructure, we have to -# override the default configure commands for several reasons: -# -# 1. We have to build out-of-tree, but we can't use the same -# 'symbolic link to configure' used with the gcc packages. -# -# 2. We have to execute the configure script with bash and not sh. -# -# Note that as mentionned in -# http://patches.openembedded.org/patch/38849/, eglibc must be built -# with -O2, so we pass our own CFLAGS and CXXFLAGS below. -define EGLIBC_CONFIGURE_CMDS - mkdir -p $(@D)/build - # Do the configuration - (cd $(@D)/build; \ - $(TARGET_CONFIGURE_OPTS) \ - CFLAGS="-O2 $(EGLIBC_EXTRA_CFLAGS)" CPPFLAGS="" \ - CXXFLAGS="-O2 $(EGLIBC_EXTRA_CFLAGS)" \ - $(SHELL) $(@D)/libc/configure \ - ac_cv_path_BASH_SHELL=/bin/bash \ - libc_cv_forced_unwind=yes \ - --target=$(GNU_TARGET_NAME) \ - --host=$(GNU_TARGET_NAME) \ - --build=$(GNU_HOST_NAME) \ - --prefix=/usr \ - --enable-shared \ - $(if $(BR2_SOFT_FLOAT),--without-fp,--with-fp) \ - --with-pkgversion="Buildroot" \ - --without-cvs \ - --disable-profile \ - --without-gd \ - --enable-obsolete-rpc \ - --with-headers=$(STAGING_DIR)/usr/include) - # Install headers and start files - $(TARGET_MAKE_ENV) $(MAKE) -C $(@D)/build \ - install_root=$(STAGING_DIR) \ - install-bootstrap-headers=yes \ - install-headers - $(TARGET_MAKE_ENV) $(MAKE) -C $(@D)/build csu/subdir_lib - cp $(@D)/build/csu/crt1.o $(STAGING_DIR)/usr/lib/ - cp $(@D)/build/csu/crti.o $(STAGING_DIR)/usr/lib/ - cp $(@D)/build/csu/crtn.o $(STAGING_DIR)/usr/lib/ - $(TARGET_CROSS)gcc -nostdlib \ - -nostartfiles -shared -x c /dev/null -o $(STAGING_DIR)/usr/lib/libc.so -endef - - -# -# We also override the install to target commands since we only want -# to install the libraries, and nothing more. -# - -EGLIBC_LIBS_LIB = \ - ld*.so libc.so libcrypt.so libdl.so libgcc_s.so libm.so \ - libnsl.so libpthread.so libresolv.so librt.so libutil.so \ - libnss_files.so libnss_dns.so - -ifeq ($(BR2_PACKAGE_GDB_SERVER),y) -EGLIBC_LIBS_LIB += libthread_db.so -endif - -define EGLIBC_INSTALL_TARGET_CMDS - for libs in $(EGLIBC_LIBS_LIB); do \ - $(call copy_toolchain_lib_root,$(STAGING_DIR)/,,lib,$$libs,/lib) ; \ - done -endef - -$(eval $(autotools-package)) diff --git a/package/gcc/Config.in.host b/package/gcc/Config.in.host index dbf0f204fb..111da3bea5 100644 --- a/package/gcc/Config.in.host +++ b/package/gcc/Config.in.host @@ -145,7 +145,7 @@ config BR2_INSTALL_FORTRAN config BR2_GCC_ENABLE_TLS bool "Enable compiler tls support" if BR2_TOOLCHAIN_BUILDROOT_UCLIBC default y - depends on BR2_PTHREADS_NATIVE || BR2_TOOLCHAIN_BUILDROOT_EGLIBC + depends on BR2_PTHREADS_NATIVE || BR2_TOOLCHAIN_BUILDROOT_EGLIBC || BR2_TOOLCHAIN_BUILDROOT_GLIBC help Enable the compiler to generate code for accessing thread local storage variables diff --git a/package/gcc/gcc-final/gcc-final.mk b/package/gcc/gcc-final/gcc-final.mk index 2dbdfab8ea..f627767234 100644 --- a/package/gcc/gcc-final/gcc-final.mk +++ b/package/gcc/gcc-final/gcc-final.mk @@ -80,11 +80,11 @@ endef HOST_GCC_FINAL_POST_INSTALL_HOOKS += HOST_GCC_FINAL_CREATE_SIMPLE_SYMLINKS -# In gcc 4.7.x, the ARM EABIhf library loader path for eglibc was not +# In gcc 4.7.x, the ARM EABIhf library loader path for (e)glibc was not # correct, so we create a symbolic link to make things work # properly. eglibc installs the library loader as ld-linux-armhf.so.3, # but gcc creates binaries that reference ld-linux.so.3. -ifeq ($(BR2_arm)$(BR2_ARM_EABIHF)$(BR2_GCC_VERSION_4_7_X)$(BR2_TOOLCHAIN_BUILDROOT_EGLIBC),yyyy) +ifeq ($(BR2_arm)$(BR2_ARM_EABIHF)$(BR2_GCC_VERSION_4_7_X)$(BR2_TOOLCHAIN_USES_GLIBC),yyyy) define HOST_GCC_FINAL_LD_LINUX_LINK ln -sf ld-linux-armhf.so.3 $(TARGET_DIR)/lib/ld-linux.so.3 ln -sf ld-linux-armhf.so.3 $(STAGING_DIR)/lib/ld-linux.so.3 diff --git a/package/glibc/glibc.mk b/package/glibc/glibc.mk new file mode 100644 index 0000000000..4dd2e63204 --- /dev/null +++ b/package/glibc/glibc.mk @@ -0,0 +1,113 @@ +################################################################################ +# +# glibc/eglibc +# +################################################################################ + +ifeq ($(BR2_TOOLCHAIN_BUILDROOT_EGLIBC),y) +GLIBC_VERSION = 2.17-svnr22064 +GLIBC_SITE = http://downloads.yoctoproject.org/releases/eglibc/ +GLIBC_SOURCE = eglibc-$(GLIBC_VERSION).tar.bz2 +GLIBC_SRC_SUBDIR = libc +else +GLIBC_VERSION = 2.18 +GLIBC_SITE = $(BR2_GNU_MIRROR)/libc +GLIBC_SOURCE = glibc-$(GLIBC_VERSION).tar.xz +GLIBC_SRC_SUBDIR = . +endif + +GLIBC_LICENSE = GPLv2+ (programs), LGPLv2.1+, BSD-3c, MIT (library) +GLIBC_LICENSE_FILES = $(addprefix $(GLIBC_SRC_SUBDIR)/,COPYING COPYING.LIB LICENSES) + +# Before (e)glibc is configured, we must have the first stage +# cross-compiler and the kernel headers +GLIBC_DEPENDENCIES = host-gcc-initial linux-headers + +# eglibc also needs host-gawk +ifeq ($(BR2_TOOLCHAIN_BUILDROOT_EGLIBC),y) +GLIBC_DEPENDENCIES += host-gawk +endif + +# Before (e)glibc is built, we must have the second stage +# cross-compiler, for some gcc versions +glibc-build: $(if $(BR2_TOOLCHAIN_NEEDS_THREE_STAGE_BUILD),host-gcc-intermediate) + +GLIBC_SUBDIR = build + +GLIBC_INSTALL_STAGING = YES + +GLIBC_INSTALL_STAGING_OPT = install_root=$(STAGING_DIR) install + +# Thumb build is broken, build in ARM mode +ifeq ($(BR2_ARM_INSTRUCTIONS_THUMB),y) +GLIBC_EXTRA_CFLAGS += -marm +endif + +# Even though we use the autotools-package infrastructure, we have to +# override the default configure commands for several reasons: +# +# 1. We have to build out-of-tree, but we can't use the same +# 'symbolic link to configure' used with the gcc packages. +# +# 2. We have to execute the configure script with bash and not sh. +# +# Note that as mentionned in +# http://patches.openembedded.org/patch/38849/, eglibc/glibc must be +# built with -O2, so we pass our own CFLAGS and CXXFLAGS below. +define GLIBC_CONFIGURE_CMDS + mkdir -p $(@D)/build + # Do the configuration + (cd $(@D)/build; \ + $(TARGET_CONFIGURE_OPTS) \ + CFLAGS="-O2 $(GLIBC_EXTRA_CFLAGS)" CPPFLAGS="" \ + CXXFLAGS="-O2 $(GLIBC_EXTRA_CFLAGS)" \ + $(SHELL) $(@D)/$(GLIBC_SRC_SUBDIR)/configure \ + ac_cv_path_BASH_SHELL=/bin/bash \ + libc_cv_forced_unwind=yes \ + --target=$(GNU_TARGET_NAME) \ + --host=$(GNU_TARGET_NAME) \ + --build=$(GNU_HOST_NAME) \ + --prefix=/usr \ + --enable-shared \ + $(if $(BR2_SOFT_FLOAT),--without-fp,--with-fp) \ + --with-pkgversion="Buildroot" \ + --without-cvs \ + --disable-profile \ + --without-gd \ + --enable-obsolete-rpc \ + --with-headers=$(STAGING_DIR)/usr/include) + # Install headers and start files + $(TARGET_MAKE_ENV) $(MAKE) -C $(@D)/build \ + install_root=$(STAGING_DIR) \ + install-bootstrap-headers=yes \ + install-headers + $(TARGET_MAKE_ENV) $(MAKE) -C $(@D)/build csu/subdir_lib + cp $(@D)/build/csu/crt1.o $(STAGING_DIR)/usr/lib/ + cp $(@D)/build/csu/crti.o $(STAGING_DIR)/usr/lib/ + cp $(@D)/build/csu/crtn.o $(STAGING_DIR)/usr/lib/ + $(TARGET_CROSS)gcc -nostdlib \ + -nostartfiles -shared -x c /dev/null -o $(STAGING_DIR)/usr/lib/libc.so +endef + + +# +# We also override the install to target commands since we only want +# to install the libraries, and nothing more. +# + +GLIBC_LIBS_LIB = \ + ld*.so libc.so libcrypt.so libdl.so libgcc_s.so libm.so \ + libnsl.so libpthread.so libresolv.so librt.so libutil.so \ + libnss_files.so libnss_dns.so + +ifeq ($(BR2_PACKAGE_GDB_SERVER),y) +GLIBC_LIBS_LIB += libthread_db.so +endif + +define GLIBC_INSTALL_TARGET_CMDS + for libs in $(GLIBC_LIBS_LIB); do \ + $(call copy_toolchain_lib_root,$(STAGING_DIR)/,,lib,$$libs,/lib) ; \ + done +endef + +$(eval $(autotools-package)) diff --git a/toolchain/toolchain-buildroot/Config.in b/toolchain/toolchain-buildroot/Config.in index 7a26441a05..060b494736 100644 --- a/toolchain/toolchain-buildroot/Config.in +++ b/toolchain/toolchain-buildroot/Config.in @@ -35,12 +35,34 @@ config BR2_TOOLCHAIN_BUILDROOT_EGLIBC http://eglibc.org +config BR2_TOOLCHAIN_BUILDROOT_GLIBC + bool "glibc (experimental)" + depends on BR2_arm || BR2_armeb || BR2_aarch64 || \ + BR2_i386 || BR2_mips || BR2_mipsel || \ + BR2_mips64 || BR2_mips64el || BR2_powerpc || \ + BR2_sh || BR2_sh64 || BR2_sparc || \ + BR2_x86_64 + select BR2_TOOLCHAIN_USES_GLIBC + # our glibc.mk enables RPC support + select BR2_TOOLCHAIN_HAS_NATIVE_RPC + help + This option selects glibc as the C library for the + cross-compilation toolchain. + + The glibc support in the Buildroot toolchain backend is + very recent, and therefore marked experimental. + + http://www.gnu.org/software/libc/ + endchoice config BR2_TOOLCHAIN_BUILDROOT_LIBC string default "uclibc" if BR2_TOOLCHAIN_BUILDROOT_UCLIBC - default "eglibc" if BR2_TOOLCHAIN_BUILDROOT_EGLIBC + # Both glibc and eglibc are handled by the package called + # 'glibc' + default "glibc" if BR2_TOOLCHAIN_BUILDROOT_EGLIBC + default "glibc" if BR2_TOOLCHAIN_BUILDROOT_GLIBC source "package/uclibc/Config.in"