530777aaeb
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>
144 lines
4.4 KiB
Makefile
144 lines
4.4 KiB
Makefile
################################################################################
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#
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# gcc-final
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#
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################################################################################
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GCC_FINAL_VERSION = $(GCC_VERSION)
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GCC_FINAL_SITE = $(GCC_SITE)
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GCC_FINAL_SOURCE = $(GCC_SOURCE)
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HOST_GCC_FINAL_DEPENDENCIES = \
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$(HOST_GCC_COMMON_DEPENDENCIES) \
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$(BUILDROOT_LIBC)
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HOST_GCC_FINAL_EXTRACT_CMDS = $(HOST_GCC_EXTRACT_CMDS)
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ifneq ($(call qstrip, $(BR2_XTENSA_CORE_NAME)),)
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HOST_GCC_FINAL_POST_EXTRACT_CMDS += HOST_GCC_FINAL_XTENSA_OVERLAY_EXTRACT
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endif
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HOST_GCC_FINAL_POST_PATCH_HOOKS += HOST_GCC_APPLY_PATCHES
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# gcc doesn't support in-tree build, so we create a 'build'
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# subdirectory in the gcc sources, and build from there.
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HOST_GCC_FINAL_SUBDIR = build
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HOST_GCC_FINAL_PRE_CONFIGURE_HOOKS += HOST_GCC_CONFIGURE_SYMLINK
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# Languages supported by the cross-compiler
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GCC_FINAL_CROSS_LANGUAGES-y = c
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GCC_FINAL_CROSS_LANGUAGES-$(BR2_INSTALL_LIBSTDCPP) += c++
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GCC_FINAL_CROSS_LANGUAGES-$(BR2_INSTALL_FORTRAN) += fortran
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GCC_FINAL_CROSS_LANGUAGES-$(BR2_INSTALL_OBJC) += objc
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GCC_FINAL_CROSS_LANGUAGES = $(subst $(space),$(comma),$(GCC_FINAL_CROSS_LANGUAGES-y))
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HOST_GCC_FINAL_CONF_OPT = \
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$(HOST_GCC_COMMON_CONF_OPT) \
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--enable-languages=$(GCC_FINAL_CROSS_LANGUAGES) \
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$(DISABLE_LARGEFILE) \
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--with-build-time-tools=$(HOST_DIR)/usr/$(GNU_TARGET_NAME)/bin
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ifeq ($(BR2_GCC_ENABLE_OPENMP),y)
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HOST_GCC_FINAL_CONF_OPT += --enable-libgomp
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else
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HOST_GCC_FINAL_CONF_OPT += --disable-libgomp
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endif
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# End with user-provided options, so that they can override previously
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# defined options.
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HOST_GCC_FINAL_CONF_OPT += \
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$(call qstrip,$(BR2_EXTRA_GCC_CONFIG_OPTIONS))
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HOST_GCC_FINAL_CONF_ENV = \
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$(HOST_GCC_COMMON_CONF_ENV)
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# Make sure we have 'cc'
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define HOST_GCC_FINAL_CREATE_CC_SYMLINKS
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if [ ! -e $(HOST_DIR)/usr/bin/$(GNU_TARGET_NAME)-cc ]; then \
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ln -snf $(GNU_TARGET_NAME)-gcc \
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$(HOST_DIR)/usr/bin/$(GNU_TARGET_NAME)-cc; \
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fi
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if [ ! -e $(HOST_DIR)/usr/$(GNU_TARGET_NAME)/bin/cc ]; then \
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ln -snf gcc $(HOST_DIR)/usr/$(GNU_TARGET_NAME)/bin/cc; \
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fi
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endef
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HOST_GCC_FINAL_POST_INSTALL_HOOKS += HOST_GCC_FINAL_CREATE_CC_SYMLINKS
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# Create <arch>-linux-<tool> symlinks
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define HOST_GCC_FINAL_CREATE_SIMPLE_SYMLINKS
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(cd $(HOST_DIR)/usr/bin; for i in $(GNU_TARGET_NAME)-*; do \
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ln -snf $$i $(ARCH)-linux$${i##$(GNU_TARGET_NAME)}; \
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done)
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endef
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HOST_GCC_FINAL_POST_INSTALL_HOOKS += HOST_GCC_FINAL_CREATE_SIMPLE_SYMLINKS
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# In gcc 4.7.x, the ARM EABIhf library loader path for (e)glibc was not
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# correct, so we create a symbolic link to make things work
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# properly. eglibc installs the library loader as ld-linux-armhf.so.3,
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# but gcc creates binaries that reference ld-linux.so.3.
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ifeq ($(BR2_arm)$(BR2_ARM_EABIHF)$(BR2_GCC_VERSION_4_7_X)$(BR2_TOOLCHAIN_USES_GLIBC),yyyy)
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define HOST_GCC_FINAL_LD_LINUX_LINK
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ln -sf ld-linux-armhf.so.3 $(TARGET_DIR)/lib/ld-linux.so.3
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ln -sf ld-linux-armhf.so.3 $(STAGING_DIR)/lib/ld-linux.so.3
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endef
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HOST_GCC_FINAL_POST_INSTALL_HOOKS += HOST_GCC_FINAL_LD_LINUX_LINK
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endif
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# Cannot use the HOST_GCC_FINAL_USR_LIBS mechanism below, because we want
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# libgcc_s to be installed in /lib and not /usr/lib. We add +x on
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# libgcc_s to ensure it will be stripped.
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define HOST_GCC_FINAL_INSTALL_LIBGCC
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-cp -dpf $(HOST_DIR)/usr/$(GNU_TARGET_NAME)/lib*/libgcc_s* \
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$(STAGING_DIR)/lib/
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-cp -dpf $(HOST_DIR)/usr/$(GNU_TARGET_NAME)/lib*/libgcc_s* \
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$(TARGET_DIR)/lib/
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-chmod +x $(TARGET_DIR)/lib/libgcc_s.so.1
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endef
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HOST_GCC_FINAL_POST_INSTALL_HOOKS += HOST_GCC_FINAL_INSTALL_LIBGCC
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# Handle the installation of libraries in /usr/lib
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HOST_GCC_FINAL_USR_LIBS =
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ifeq ($(BR2_INSTALL_LIBSTDCPP),y)
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HOST_GCC_FINAL_USR_LIBS += libstdc++
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endif
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ifeq ($(BR2_GCC_ENABLE_OPENMP),y)
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HOST_GCC_FINAL_USR_LIBS += libgomp
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endif
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ifeq ($(BR2_INSTALL_FORTRAN),y)
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HOST_GCC_FINAL_USR_LIBS += libgfortran
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endif
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ifeq ($(BR2_INSTALL_OBJC),y)
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HOST_GCC_FINAL_USR_LIBS += libobjc
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endif
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ifeq ($(BR2_GCC_ENABLE_LIBMUDFLAP),y)
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ifeq ($(BR2_TOOLCHAIN_HAS_THREADS),y)
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HOST_GCC_FINAL_USR_LIBS += libmudflapth
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else
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HOST_GCC_FINAL_USR_LIBS += libmudflap
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endif
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endif
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ifneq ($(HOST_GCC_FINAL_USR_LIBS),)
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define HOST_GCC_FINAL_INSTALL_USR_LIBS
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mkdir -p $(TARGET_DIR)/usr/lib
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for i in $(HOST_GCC_FINAL_USR_LIBS) ; do \
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cp -dpf $(HOST_DIR)/usr/$(GNU_TARGET_NAME)/lib*/$${i}.so* \
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$(STAGING_DIR)/usr/lib/ ; \
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cp -dpf $(HOST_DIR)/usr/$(GNU_TARGET_NAME)/lib*/$${i}.so* \
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$(TARGET_DIR)/usr/lib/ ; \
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done
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endef
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HOST_GCC_FINAL_POST_INSTALL_HOOKS += HOST_GCC_FINAL_INSTALL_USR_LIBS
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endif
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$(eval $(host-autotools-package))
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