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>
215 lines
5.6 KiB
Makefile
215 lines
5.6 KiB
Makefile
################################################################################
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#
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# Common variables for the gcc-initial, gcc-intermediate and gcc-final
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# packages.
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#
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################################################################################
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#
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# Version, site and source
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#
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GCC_VERSION = $(call qstrip,$(BR2_GCC_VERSION))
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ifeq ($(BR2_GCC_VERSION_SNAP),y)
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GCC_SNAP_DATE = $(call qstrip,$(BR2_GCC_SNAP_DATE))
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endif
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ifneq ($(GCC_SNAP_DATE),)
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GCC_SITE = ftp://gcc.gnu.org/pub/gcc/snapshots/$(GCC_SNAP_DATE)/
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else ifeq ($(findstring avr32,$(GCC_VERSION)),avr32)
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GCC_SITE = ftp://www.at91.com/pub/buildroot/
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else ifeq ($(findstring arc,$(GCC_VERSION)),arc)
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GCC_SITE = $(BR2_ARC_SITE)
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else
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GCC_SITE = $(BR2_GNU_MIRROR:/=)/gcc/gcc-$(GCC_VERSION)
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endif
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GCC_SOURCE = gcc-$(GCC_VERSION).tar.bz2
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#
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# Xtensa special hook
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#
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define HOST_GCC_XTENSA_OVERLAY_EXTRACT
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tar xf $(BR2_XTENSA_OVERLAY_DIR)/xtensa_$(call qstrip,\
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$(BR2_XTENSA_CORE_NAME)).tar -C $(@D) --strip-components=1 gcc
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endef
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#
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# Apply patches
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#
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ifeq ($(ARCH),powerpc)
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ifneq ($(BR2_SOFT_FLOAT),)
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define HOST_GCC_APPLY_POWERPC_PATCH
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support/scripts/apply-patches.sh $(@D) package/gcc/$(GCC_VERSION) powerpc-link-with-math-lib.patch.conditional
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endef
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endif
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endif
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define HOST_GCC_APPLY_PATCHES
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support/scripts/apply-patches.sh $(@D) package/gcc/$(GCC_VERSION) \*.patch
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$(HOST_GCC_APPLY_POWERPC_PATCH)
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endef
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#
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# Custom extract command to save disk space
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#
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define HOST_GCC_EXTRACT_CMDS
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$(BZCAT) $(DL_DIR)/$(GCC_SOURCE) | \
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$(TAR) $(TAR_STRIP_COMPONENTS)=1 -C $(@D) \
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--exclude='libjava/*' \
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--exclude='libgo/*' \
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--exclude='gcc/testsuite/*' \
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--exclude='libstdc++-v3/testsuite/*' \
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$(TAR_OPTIONS) -
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mkdir -p $(@D)/libstdc++-v3/testsuite/
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echo "all:" > $(@D)/libstdc++-v3/testsuite/Makefile.in
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echo "install:" >> $(@D)/libstdc++-v3/testsuite/Makefile.in
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endef
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#
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# Create 'build' directory and configure symlink
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#
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define HOST_GCC_CONFIGURE_SYMLINK
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mkdir -p $(@D)/build
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ln -sf ../configure $(@D)/build/configure
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endef
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#
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# Common configuration options
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#
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HOST_GCC_COMMON_DEPENDENCIES = \
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host-binutils \
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host-gmp \
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host-mpfr \
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$(if $(BR2_BINFMT_FLAT),host-elf2flt)
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HOST_GCC_COMMON_CONF_OPT = \
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--target=$(GNU_TARGET_NAME) \
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--with-sysroot=$(STAGING_DIR) \
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--disable-__cxa_atexit \
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--with-gnu-ld \
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--disable-libssp \
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--disable-multilib \
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--with-gmp=$(HOST_DIR)/usr \
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--with-mpfr=$(HOST_DIR)/usr
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# Don't build documentation. It takes up extra space / build time,
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# and sometimes needs specific makeinfo versions to work
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HOST_GCC_COMMON_CONF_ENV = \
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MAKEINFO=missing
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# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43810
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# Workaround until it's fixed in 4.5.4 or later
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ifeq ($(ARCH),powerpc)
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ifeq ($(findstring x4.5.,x$(GCC_VERSION)),x4.5.)
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HOST_GCC_COMMON_CONF_OPT += --disable-target-optspace
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endif
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else
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HOST_GCC_COMMON_CONF_OPT += --enable-target-optspace
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endif
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# gcc 4.6.x quadmath requires wchar
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ifneq ($(BR2_TOOLCHAIN_BUILDROOT_WCHAR),y)
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HOST_GCC_COMMON_CONF_OPT += --disable-libquadmath
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endif
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ifeq ($(BR2_GCC_ENABLE_TLS),y)
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HOST_GCC_COMMON_CONF_OPT += --enable-tls
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else
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HOST_GCC_COMMON_CONF_OPT += --disable-tls
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endif
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ifeq ($(BR2_GCC_ENABLE_LIBMUDFLAP),y)
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HOST_GCC_COMMON_CONF_OPT += --enable-libmudflap
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else
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HOST_GCC_COMMON_CONF_OPT += --disable-libmudflap
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endif
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ifeq ($(BR2_PTHREADS_NONE),y)
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HOST_GCC_COMMON_CONF_OPT += \
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--disable-threads \
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--disable-libitm \
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--disable-libatomic
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else
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HOST_GCC_COMMON_CONF_OPT += --enable-threads
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endif
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ifeq ($(BR2_GCC_NEEDS_MPC),y)
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HOST_GCC_COMMON_DEPENDENCIES += host-mpc
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HOST_GCC_COMMON_CONF_OPT += --with-mpc=$(HOST_DIR)/usr
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endif
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ifeq ($(BR2_arc),y)
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HOST_GCC_COMMON_DEPENDENCIES += host-flex host-bison
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endif
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ifeq ($(BR2_SOFT_FLOAT),y)
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# only mips*-*-*, arm*-*-* and sparc*-*-* accept --with-float
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# powerpc seems to be needing it as well
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ifeq ($(BR2_arm)$(BR2_armeb)$(BR2_mips)$(BR2_mipsel)$(BR2_mips64)$(BR2_mips64el)$(BR2_powerpc)$(BR2_sparc),y)
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HOST_GCC_COMMON_CONF_OPT += --with-float=soft
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endif
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endif
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ifeq ($(BR2_GCC_SUPPORTS_FINEGRAINEDMTUNE),y)
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HOST_GCC_COMMON_CONF_OPT += --disable-decimal-float
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endif
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# Determine arch/tune/abi/cpu options
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ifneq ($(call qstrip,$(BR2_GCC_TARGET_ARCH)),)
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HOST_GCC_COMMON_CONF_OPT += --with-arch=$(BR2_GCC_TARGET_ARCH)
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endif
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ifneq ($(call qstrip,$(BR2_GCC_TARGET_TUNE)),)
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HOST_GCC_COMMON_CONF_OPT += --with-tune=$(BR2_GCC_TARGET_TUNE)
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endif
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ifneq ($(call qstrip,$(BR2_GCC_TARGET_ABI)),)
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HOST_GCC_COMMON_CONF_OPT += --with-abi=$(BR2_GCC_TARGET_ABI)
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endif
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# GCC doesn't support --with-cpu for bfin
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ifeq ($(BR2_bfin),)
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ifneq ($(call qstrip,$(BR2_GCC_TARGET_CPU)),)
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ifneq ($(call qstrip,$(BR2_GCC_TARGET_CPU_REVISION)),)
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HOST_GCC_COMMON_CONF_OPT += --with-cpu=$(call qstrip,$(BR2_GCC_TARGET_CPU)-$(BR2_GCC_TARGET_CPU_REVISION))
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else
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HOST_GCC_COMMON_CONF_OPT += --with-cpu=$(call qstrip,$(BR2_GCC_TARGET_CPU))
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endif
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endif
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endif
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GCC_TARGET_FPU = $(call qstrip,$(BR2_GCC_TARGET_FPU))
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ifneq ($(GCC_TARGET_FPU),)
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HOST_GCC_COMMON_CONF_OPT += --with-fpu=$(GCC_TARGET_FPU)
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endif
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GCC_TARGET_FLOAT_ABI = $(call qstrip,$(BR2_GCC_TARGET_FLOAT_ABI))
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ifneq ($(GCC_TARGET_FLOAT_ABI),)
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HOST_GCC_COMMON_CONF_OPT += --with-float=$(GCC_TARGET_FLOAT_ABI)
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endif
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GCC_TARGET_MODE = $(call qstrip,$(BR2_GCC_TARGET_MODE))
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ifneq ($(GCC_TARGET_MODE),)
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HOST_GCC_COMMON_CONF_OPT += --with-mode=$(GCC_TARGET_MODE)
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endif
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# Branding works on >= 4.3
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ifneq ($(findstring x4.2.,x$(GCC_VERSION)),x4.2.)
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HOST_GCC_COMMON_CONF_OPT += \
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--with-pkgversion="Buildroot $(BR2_VERSION_FULL)" \
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--with-bugurl="http://bugs.buildroot.net/"
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endif
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# Enable proper double/long double for SPE ABI
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ifeq ($(BR2_powerpc_SPE),y)
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HOST_GCC_COMMON_CONF_OPT += \
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--enable-e500_double \
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--with-long-double-128
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endif
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include $(sort $(wildcard package/gcc/*/*.mk))
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