f03a9be4c3
Commit 6b48b48034 ("add a know to enable/disable building a shared
libgcc"), from october 2006, isn't really as to why a
BR2_GCC_SHARED_LIBGCC option was needed. However, now that gcc has
been converted to the package infrastructure, it causes problems
because the host packages are always being passed --enable-shared
--disable-static, so re-adding --disable-shared on top of that break
things.
Moreover, our tests indicate that both a shared *and* a static version
of libgcc are built, and that linking dynamically and statically a
program that uses libgcc_s gives correct results: dynamically linked
against libgcc_s in the first case, statically linked in the second
case.
Therefore, it appears that this option is no longer necessary, and
removing it has the advantage of fixing the builds of
qemu_mips64_malta_defconfig and qemu_sparc_ss10_defconfig, both of
which had BR2_GCC_SHARED_LIBGCC not enabled.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Acked-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
191 lines
4.9 KiB
Makefile
191 lines
4.9 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 -s ../configure $(@D)/build/configure
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endef
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#
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# Common configuration options
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#
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HOST_GCC_COMMON_DEPENDENCIES = \
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host-binutils \
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host-gmp \
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host-mpfr
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HOST_GCC_COMMON_CONF_OPT = \
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--target=$(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=$(HOST_DIR)/usr \
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# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43810
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# Workaround until it's fixed in 4.5.4 or later
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ifeq ($(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 ($(BR2_PTHREADS_NONE),y)
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HOST_GCC_COMMON_CONF_OPT += \
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--disable-threads \
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--disable-libitm \
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--disable-libatomic
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else
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HOST_GCC_COMMON_CONF_OPT += --enable-threads
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endif
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ifeq ($(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_GCC_VERSION_4_4_7_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=$(BR2_GCC_TARGET_ABI)
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endif
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ifneq ($(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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# 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 $(BR2_VERSION_FULL)" \
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--with-bugurl="http://bugs.buildroot.net/"
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endif
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# AVR32 GCC special configuration
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ifeq ($(BR2_avr32),y)
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HOST_GCC_COMMON_CONF_OPT += --disable-libmudflap
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endif
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# Disable mudflap and 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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--disable-libmudflap \
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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 package/gcc/*/*.mk
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