buildrootschalter/package/glibc/glibc.mk
Thomas Petazzoni 14a2d0b5ab 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 <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
2013-09-15 22:58:37 +02:00

114 lines
3.5 KiB
Makefile

################################################################################
#
# 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))