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kumquat-buildroot/package/gcc/gcc-final/gcc-final.mk
Thomas Petazzoni 6300de5464 package/gcc: introduce BR2_GCC_SUPPORTS_LIBCILKRTS 
libcilkrts was introduced in gcc 4.9, and removed in gcc
8.x. Therefore, it does not make sense to pass --disable-libcilkrts in
gcc 8.x and higher. This commit introduces BR2_GCC_SUPPORTS_LIBCILKRTS
that allows the makefile code to know if the selected gcc version
supports libcilkrts or not.

This new option mainly allows to annotate the fact that libcilkrts
exists in gcc [4.9, 7] and that once we have dropped support for those
gcc versions, the libcilkrts related logic can be removed.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Reviewed-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2018-10-21 16:26:54 +02:00

222 lines
6.7 KiB
Makefile
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################################################################################
#
# gcc-final
#
################################################################################
GCC_FINAL_VERSION = $(GCC_VERSION)
GCC_FINAL_SITE = $(GCC_SITE)
GCC_FINAL_SOURCE = $(GCC_SOURCE)
HOST_GCC_FINAL_DL_SUBDIR = gcc
HOST_GCC_FINAL_DEPENDENCIES = \
$(HOST_GCC_COMMON_DEPENDENCIES) \
$(BR_LIBC)
HOST_GCC_FINAL_EXCLUDES = $(HOST_GCC_EXCLUDES)
HOST_GCC_FINAL_POST_EXTRACT_HOOKS += HOST_GCC_FAKE_TESTSUITE
ifneq ($(ARCH_XTENSA_OVERLAY_FILE),)
HOST_GCC_FINAL_POST_EXTRACT_HOOKS += HOST_GCC_XTENSA_OVERLAY_EXTRACT
HOST_GCC_FINAL_EXTRA_DOWNLOADS += $(ARCH_XTENSA_OVERLAY_URL)
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
# We want to always build the static variants of all the gcc libraries,
# of which libstdc++, libgomp, libmudflap...
# To do so, we can not just pass --enable-static to override the generic
# --disable-static flag, otherwise gcc fails to build some of those
# libraries, see;
# http://lists.busybox.net/pipermail/buildroot/2013-October/080412.html
#
# So we must completely override the generic commands and provide our own.
#
define HOST_GCC_FINAL_CONFIGURE_CMDS
(cd $(HOST_GCC_FINAL_SRCDIR) && rm -rf config.cache; \
$(HOST_CONFIGURE_OPTS) \
CFLAGS="$(HOST_CFLAGS)" \
LDFLAGS="$(HOST_LDFLAGS)" \
$(HOST_GCC_FINAL_CONF_ENV) \
./configure \
--prefix="$(HOST_DIR)" \
--sysconfdir="$(HOST_DIR)/etc" \
--enable-static \
$(QUIET) $(HOST_GCC_FINAL_CONF_OPTS) \
)
endef
# Languages supported by the cross-compiler
GCC_FINAL_CROSS_LANGUAGES-y = c
GCC_FINAL_CROSS_LANGUAGES-$(BR2_INSTALL_LIBSTDCPP) += c++
GCC_FINAL_CROSS_LANGUAGES-$(BR2_TOOLCHAIN_BUILDROOT_FORTRAN) += fortran
GCC_FINAL_CROSS_LANGUAGES = $(subst $(space),$(comma),$(GCC_FINAL_CROSS_LANGUAGES-y))
HOST_GCC_FINAL_CONF_OPTS = \
$(HOST_GCC_COMMON_CONF_OPTS) \
--enable-languages=$(GCC_FINAL_CROSS_LANGUAGES) \
--with-build-time-tools=$(HOST_DIR)/$(GNU_TARGET_NAME)/bin
HOST_GCC_FINAL_GCC_LIB_DIR = $(HOST_DIR)/$(GNU_TARGET_NAME)/lib*
# The kernel wants to use the -m4-nofpu option to make sure that it
# doesn't use floating point operations.
ifeq ($(BR2_sh4)$(BR2_sh4eb),y)
HOST_GCC_FINAL_CONF_OPTS += "--with-multilib-list=m4,m4-nofpu"
HOST_GCC_FINAL_GCC_LIB_DIR = $(HOST_DIR)/$(GNU_TARGET_NAME)/lib/!m4*
endif
ifeq ($(BR2_sh4a)$(BR2_sh4aeb),y)
HOST_GCC_FINAL_CONF_OPTS += "--with-multilib-list=m4a,m4a-nofpu"
HOST_GCC_FINAL_GCC_LIB_DIR = $(HOST_DIR)/$(GNU_TARGET_NAME)/lib/!m4*
endif
ifeq ($(BR2_GCC_SUPPORTS_LIBCILKRTS),y)
# libcilkrts does not support v8
ifeq ($(BR2_sparc),y)
HOST_GCC_FINAL_CONF_OPTS += --disable-libcilkrts
endif
# Pthreads are required to build libcilkrts
ifeq ($(BR2_PTHREADS_NONE),y)
HOST_GCC_FINAL_CONF_OPTS += --disable-libcilkrts
endif
ifeq ($(BR2_STATIC_LIBS),y)
# disable libcilkrts as there is no static version
HOST_GCC_FINAL_CONF_OPTS += --disable-libcilkrts
endif
endif # BR2_GCC_SUPPORTS_LIBCILKRTS
# Disable shared libs like libstdc++ if we do static since it confuses linking
ifeq ($(BR2_STATIC_LIBS),y)
HOST_GCC_FINAL_CONF_OPTS += --disable-shared
else
HOST_GCC_FINAL_CONF_OPTS += --enable-shared
endif
ifeq ($(BR2_GCC_ENABLE_OPENMP),y)
HOST_GCC_FINAL_CONF_OPTS += --enable-libgomp
else
HOST_GCC_FINAL_CONF_OPTS += --disable-libgomp
endif
# End with user-provided options, so that they can override previously
# defined options.
HOST_GCC_FINAL_CONF_OPTS += \
$(call qstrip,$(BR2_EXTRA_GCC_CONFIG_OPTIONS))
HOST_GCC_FINAL_CONF_ENV = \
$(HOST_GCC_COMMON_CONF_ENV)
HOST_GCC_FINAL_MAKE_OPTS += $(HOST_GCC_COMMON_MAKE_OPTS)
# Make sure we have 'cc'
define HOST_GCC_FINAL_CREATE_CC_SYMLINKS
if [ ! -e $(HOST_DIR)/bin/$(GNU_TARGET_NAME)-cc ]; then \
ln -f $(HOST_DIR)/bin/$(GNU_TARGET_NAME)-gcc \
$(HOST_DIR)/bin/$(GNU_TARGET_NAME)-cc; \
fi
endef
HOST_GCC_FINAL_POST_INSTALL_HOOKS += HOST_GCC_FINAL_CREATE_CC_SYMLINKS
HOST_GCC_FINAL_TOOLCHAIN_WRAPPER_ARGS += $(HOST_GCC_COMMON_TOOLCHAIN_WRAPPER_ARGS)
HOST_GCC_FINAL_POST_BUILD_HOOKS += TOOLCHAIN_WRAPPER_BUILD
HOST_GCC_FINAL_POST_INSTALL_HOOKS += TOOLCHAIN_WRAPPER_INSTALL
# Note: this must be done after CREATE_CC_SYMLINKS, otherwise the
# -cc symlink to the wrapper is not created.
HOST_GCC_FINAL_POST_INSTALL_HOOKS += HOST_GCC_INSTALL_WRAPPER_AND_SIMPLE_SYMLINKS
# coldfire is not working without removing these object files from libgcc.a
ifeq ($(BR2_m68k_cf),y)
define HOST_GCC_FINAL_M68K_LIBGCC_FIXUP
find $(STAGING_DIR) -name libgcc.a -print | \
while read t; do $(GNU_TARGET_NAME)-ar dv "$t" _ctors.o; done
endef
HOST_GCC_FINAL_POST_INSTALL_HOOKS += HOST_GCC_FINAL_M68K_LIBGCC_FIXUP
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.
define HOST_GCC_FINAL_INSTALL_LIBGCC
-cp -dpf $(HOST_GCC_FINAL_GCC_LIB_DIR)/libgcc_s* \
$(STAGING_DIR)/lib/
-cp -dpf $(HOST_GCC_FINAL_GCC_LIB_DIR)/libgcc_s* \
$(TARGET_DIR)/lib/
endef
HOST_GCC_FINAL_POST_INSTALL_HOOKS += HOST_GCC_FINAL_INSTALL_LIBGCC
define HOST_GCC_FINAL_INSTALL_LIBATOMIC
-cp -dpf $(HOST_GCC_FINAL_GCC_LIB_DIR)/libatomic* \
$(STAGING_DIR)/lib/
-cp -dpf $(HOST_GCC_FINAL_GCC_LIB_DIR)/libatomic* \
$(TARGET_DIR)/lib/
endef
HOST_GCC_FINAL_POST_INSTALL_HOOKS += HOST_GCC_FINAL_INSTALL_LIBATOMIC
# Handle the installation of libraries in /usr/lib
HOST_GCC_FINAL_USR_LIBS =
ifeq ($(BR2_INSTALL_LIBSTDCPP),y)
HOST_GCC_FINAL_USR_LIBS += libstdc++
endif
ifeq ($(BR2_TOOLCHAIN_BUILDROOT_FORTRAN),y)
HOST_GCC_FINAL_USR_LIBS += libgfortran
# fortran needs quadmath on x86 and x86_64
ifeq ($(BR2_TOOLCHAIN_HAS_LIBQUADMATH),y)
HOST_GCC_FINAL_USR_LIBS += libquadmath
endif
endif
ifeq ($(BR2_GCC_ENABLE_OPENMP),y)
HOST_GCC_FINAL_USR_LIBS += libgomp
endif
ifeq ($(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_STATIC_LIBS
for i in $(HOST_GCC_FINAL_USR_LIBS) ; do \
cp -dpf $(HOST_GCC_FINAL_GCC_LIB_DIR)/$${i}.a \
$(STAGING_DIR)/usr/lib/ ; \
done
endef
ifeq ($(BR2_STATIC_LIBS),)
define HOST_GCC_FINAL_INSTALL_SHARED_LIBS
for i in $(HOST_GCC_FINAL_USR_LIBS) ; do \
cp -dpf $(HOST_GCC_FINAL_GCC_LIB_DIR)/$${i}.so* \
$(STAGING_DIR)/usr/lib/ ; \
cp -dpf $(HOST_GCC_FINAL_GCC_LIB_DIR)/$${i}.so* \
$(TARGET_DIR)/usr/lib/ ; \
done
endef
endif
define HOST_GCC_FINAL_INSTALL_USR_LIBS
mkdir -p $(TARGET_DIR)/usr/lib
$(HOST_GCC_FINAL_INSTALL_STATIC_LIBS)
$(HOST_GCC_FINAL_INSTALL_SHARED_LIBS)
endef
HOST_GCC_FINAL_POST_INSTALL_HOOKS += HOST_GCC_FINAL_INSTALL_USR_LIBS
endif
$(eval $(host-autotools-package))
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