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- for the native target gcc, drop --enable-optspace in favour of using the configured flags (that default to -Os anyway).

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Saves about 20% size without additional configure args:
   text    data     bss     dec     hex filename
4685000   17280  566360 5268640  5064a0 optspace/i586-linux-uclibc/4.2.0/cc1
3630655   15184  562172 4208011  40358b usrflags/i586-linux-uclibc/4.2.0/cc1
4853646   23532  568528 5445706  53184a optspace/i586-linux-uclibc/4.2.0/f951
3772121   21292  564148 4357561  427db9 usrflags/i586-linux-uclibc/4.2.0/f951
This commit is contained in:
Bernhard Reutner-Fischer 2007-01-26 14:51:38 +00:00
parent 9e6af6c004
commit 4687e00808
2 changed files with 18 additions and 5 deletions
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14
toolchain/gcc/Makefile.in
View File

@ -30,18 +30,30 @@ SOFT_FLOAT_CONFIG_OPTION:=--with-float=soft
else
SOFT_FLOAT_CONFIG_OPTION:=--without-float
endif
# again... there must be a better way
ifeq ($(findstring 4.,$(GCC_VERSION)),4.)
SOFT_FLOAT_CONFIG_OPTION:=--with-float=soft
ifeq ($(BR2_SOFT_FLOAT_FP),y)
TARGET_SOFT_FLOAT:=-mfloat-abi=softfp
else # no fp at all
TARGET_SOFT_FLOAT:=-mfloat-abi=soft
endif
else # not gcc-4.x
TARGET_SOFT_FLOAT:=-msoft-float
endif
ARCH_FPU_SUFFIX:=_nofpu
else
else # no softfloat support
SOFT_FLOAT_CONFIG_OPTION:=
TARGET_SOFT_FLOAT:=
ARCH_FPU_SUFFIX:=
endif
TARGET_GCC_FLAGS= CFLAGS_FOR_TARGET="$(TARGET_CFLAGS) $(TARGET_SOFT_FLOAT)" \
CXXFLAGS_FOR_TARGET="$(TARGET_CFLAGS) $(TARGET_SOFT_FLOAT)" \
CFLAGS="$(TARGET_CFLAGS) $(TARGET_SOFT_FLOAT)" \
BOOT_CFLAGS="$(TARGET_CFLAGS) $(TARGET_SOFT_FLOAT)"
ifeq ($(strip $(BR2_PACKAGE_GCC_TARGET)),y)
TARGETS+=gcc_target
endif

9
toolchain/gcc/gcc-uclibc-3.x.mk
View File

@ -333,7 +333,8 @@ $(GCC_BUILD_DIR3)/.configured: $(GCC_BUILD_DIR3)/.prepared
(cd $(GCC_BUILD_DIR3); rm -rf config.cache ; \
PATH=$(TARGET_PATH) \
CC_FOR_BUILD="$(HOSTCC)" \
BOOT_CFLAGS="$(TARGET_CFLAGS)" \
CFLAGS_FOR_BUILD="-g -O2" \
$(TARGET_GCC_FLAGS) \
$(GCC_DIR)/configure \
--prefix=/usr \
--build=$(GNU_HOST_NAME) \
@ -342,7 +343,6 @@ $(GCC_BUILD_DIR3)/.configured: $(GCC_BUILD_DIR3)/.prepared
--enable-languages=$(GCC_TARGET_LANGUAGES) \
--with-gxx-include-dir=/usr/include/c++ \
--disable-__cxa_atexit \
--enable-target-optspace \
--with-gnu-ld \
$(GCC_SHARED_LIBGCC) \
$(GCC_WITH_TARGET_GMP) \
@ -354,12 +354,13 @@ $(GCC_BUILD_DIR3)/.configured: $(GCC_BUILD_DIR3)/.prepared
$(GCC_WITH_CPU) $(GCC_WITH_ARCH) $(GCC_WITH_TUNE) \
$(GCC_USE_SJLJ_EXCEPTIONS) \
$(DISABLE_LARGEFILE) \
$(EXTRA_GCC_CONFIG_OPTIONS));
$(EXTRA_GCC_CONFIG_OPTIONS) \
$(EXTRA_TARGET_GCC_CONFIG_OPTIONS));
touch $@
$(GCC_BUILD_DIR3)/.compiled: $(GCC_BUILD_DIR3)/.configured
PATH=$(TARGET_PATH) \
$(MAKE) $(TARGET_GCC_ARGS) -C $(GCC_BUILD_DIR3) all
$(MAKE) -C $(GCC_BUILD_DIR3) all
touch $@
#