kumquat-buildroot/package/gcc/gcc-final/gcc-final.mk
Thomas Petazzoni 530777aaeb gcc: provide option to enable mudflap support
The mudflap library is only useful if one uses the -fmudflap gcc
option to do more checks on pointers/arrays. This commit adds an
option to enable/disable mudflap support at the gcc level. By default,
it is disabled, which saves a little bit of build time compared to the
default of gcc which consists in enabling mudflap support.

Since mudflap is now disabled by default, and ensured to never be enabled
on platforms where it is not available, some gcc.mk code that was used to
disable mudflap in problematic configurations can be removed.

Whether -fmudflap is used when building is left to the user.

[Peter: tweak commit text, fix white space]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
2013-09-15 23:24:35 +02:00

144 lines
4.4 KiB
Makefile

################################################################################
#
# gcc-final
#
################################################################################
GCC_FINAL_VERSION = $(GCC_VERSION)
GCC_FINAL_SITE = $(GCC_SITE)
GCC_FINAL_SOURCE = $(GCC_SOURCE)
HOST_GCC_FINAL_DEPENDENCIES = \
$(HOST_GCC_COMMON_DEPENDENCIES) \
$(BUILDROOT_LIBC)
HOST_GCC_FINAL_EXTRACT_CMDS = $(HOST_GCC_EXTRACT_CMDS)
ifneq ($(call qstrip, $(BR2_XTENSA_CORE_NAME)),)
HOST_GCC_FINAL_POST_EXTRACT_CMDS += HOST_GCC_FINAL_XTENSA_OVERLAY_EXTRACT
endif
HOST_GCC_FINAL_POST_PATCH_HOOKS += HOST_GCC_APPLY_PATCHES
# gcc doesn't support in-tree build, so we create a 'build'
# subdirectory in the gcc sources, and build from there.
HOST_GCC_FINAL_SUBDIR = build
HOST_GCC_FINAL_PRE_CONFIGURE_HOOKS += HOST_GCC_CONFIGURE_SYMLINK
# Languages supported by the cross-compiler
GCC_FINAL_CROSS_LANGUAGES-y = c
GCC_FINAL_CROSS_LANGUAGES-$(BR2_INSTALL_LIBSTDCPP) += c++
GCC_FINAL_CROSS_LANGUAGES-$(BR2_INSTALL_FORTRAN) += fortran
GCC_FINAL_CROSS_LANGUAGES-$(BR2_INSTALL_OBJC) += objc
GCC_FINAL_CROSS_LANGUAGES = $(subst $(space),$(comma),$(GCC_FINAL_CROSS_LANGUAGES-y))
HOST_GCC_FINAL_CONF_OPT = \
$(HOST_GCC_COMMON_CONF_OPT) \
--enable-languages=$(GCC_FINAL_CROSS_LANGUAGES) \
$(DISABLE_LARGEFILE) \
--with-build-time-tools=$(HOST_DIR)/usr/$(GNU_TARGET_NAME)/bin
ifeq ($(BR2_GCC_ENABLE_OPENMP),y)
HOST_GCC_FINAL_CONF_OPT += --enable-libgomp
else
HOST_GCC_FINAL_CONF_OPT += --disable-libgomp
endif
# End with user-provided options, so that they can override previously
# defined options.
HOST_GCC_FINAL_CONF_OPT += \
$(call qstrip,$(BR2_EXTRA_GCC_CONFIG_OPTIONS))
HOST_GCC_FINAL_CONF_ENV = \
$(HOST_GCC_COMMON_CONF_ENV)
# Make sure we have 'cc'
define HOST_GCC_FINAL_CREATE_CC_SYMLINKS
if [ ! -e $(HOST_DIR)/usr/bin/$(GNU_TARGET_NAME)-cc ]; then \
ln -snf $(GNU_TARGET_NAME)-gcc \
$(HOST_DIR)/usr/bin/$(GNU_TARGET_NAME)-cc; \
fi
if [ ! -e $(HOST_DIR)/usr/$(GNU_TARGET_NAME)/bin/cc ]; then \
ln -snf gcc $(HOST_DIR)/usr/$(GNU_TARGET_NAME)/bin/cc; \
fi
endef
HOST_GCC_FINAL_POST_INSTALL_HOOKS += HOST_GCC_FINAL_CREATE_CC_SYMLINKS
# Create <arch>-linux-<tool> symlinks
define HOST_GCC_FINAL_CREATE_SIMPLE_SYMLINKS
(cd $(HOST_DIR)/usr/bin; for i in $(GNU_TARGET_NAME)-*; do \
ln -snf $$i $(ARCH)-linux$${i##$(GNU_TARGET_NAME)}; \
done)
endef
HOST_GCC_FINAL_POST_INSTALL_HOOKS += HOST_GCC_FINAL_CREATE_SIMPLE_SYMLINKS
# In gcc 4.7.x, the ARM EABIhf library loader path for (e)glibc was not
# correct, so we create a symbolic link to make things work
# properly. eglibc installs the library loader as ld-linux-armhf.so.3,
# but gcc creates binaries that reference ld-linux.so.3.
ifeq ($(BR2_arm)$(BR2_ARM_EABIHF)$(BR2_GCC_VERSION_4_7_X)$(BR2_TOOLCHAIN_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
endef
HOST_GCC_FINAL_POST_INSTALL_HOOKS += HOST_GCC_FINAL_LD_LINUX_LINK
endif
# Cannot use the HOST_GCC_FINAL_USR_LIBS mechanism below, because we want
# libgcc_s to be installed in /lib and not /usr/lib. We add +x on
# libgcc_s to ensure it will be stripped.
define HOST_GCC_FINAL_INSTALL_LIBGCC
-cp -dpf $(HOST_DIR)/usr/$(GNU_TARGET_NAME)/lib*/libgcc_s* \
$(STAGING_DIR)/lib/
-cp -dpf $(HOST_DIR)/usr/$(GNU_TARGET_NAME)/lib*/libgcc_s* \
$(TARGET_DIR)/lib/
-chmod +x $(TARGET_DIR)/lib/libgcc_s.so.1
endef
HOST_GCC_FINAL_POST_INSTALL_HOOKS += HOST_GCC_FINAL_INSTALL_LIBGCC
# Handle the installation of libraries in /usr/lib
HOST_GCC_FINAL_USR_LIBS =
ifeq ($(BR2_INSTALL_LIBSTDCPP),y)
HOST_GCC_FINAL_USR_LIBS += libstdc++
endif
ifeq ($(BR2_GCC_ENABLE_OPENMP),y)
HOST_GCC_FINAL_USR_LIBS += libgomp
endif
ifeq ($(BR2_INSTALL_FORTRAN),y)
HOST_GCC_FINAL_USR_LIBS += libgfortran
endif
ifeq ($(BR2_INSTALL_OBJC),y)
HOST_GCC_FINAL_USR_LIBS += libobjc
endif
ifeq ($(BR2_GCC_ENABLE_LIBMUDFLAP),y)
ifeq ($(BR2_TOOLCHAIN_HAS_THREADS),y)
HOST_GCC_FINAL_USR_LIBS += libmudflapth
else
HOST_GCC_FINAL_USR_LIBS += libmudflap
endif
endif
ifneq ($(HOST_GCC_FINAL_USR_LIBS),)
define HOST_GCC_FINAL_INSTALL_USR_LIBS
mkdir -p $(TARGET_DIR)/usr/lib
for i in $(HOST_GCC_FINAL_USR_LIBS) ; do \
cp -dpf $(HOST_DIR)/usr/$(GNU_TARGET_NAME)/lib*/$${i}.so* \
$(STAGING_DIR)/usr/lib/ ; \
cp -dpf $(HOST_DIR)/usr/$(GNU_TARGET_NAME)/lib*/$${i}.so* \
$(TARGET_DIR)/usr/lib/ ; \
done
endef
HOST_GCC_FINAL_POST_INSTALL_HOOKS += HOST_GCC_FINAL_INSTALL_USR_LIBS
endif
$(eval $(host-autotools-package))