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| author | Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> | 2007-01-26 14:51:38 +0000 |
|---|---|---|
| committer | Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> | 2007-01-26 14:51:38 +0000 |
| commit | 4687e008086b44312cf45610a16a945ab4e89fa4 (patch) | |
| tree | 164a96b37a9b9811bb9558af7f80029f91b3da75 /toolchain/gcc | |
| parent | 9e6af6c004a16bc981616cc7db702ddc3a1bf80f (diff) | |
| download | buildroot-4687e008086b44312cf45610a16a945ab4e89fa4.tar.gz buildroot-4687e008086b44312cf45610a16a945ab4e89fa4.zip | |
- for the native target gcc, drop --enable-optspace in favour of using the configured flags (that default to -Os anyway).
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
Diffstat (limited to 'toolchain/gcc')
| -rw-r--r-- | toolchain/gcc/Makefile.in | 14 | ||||
| -rw-r--r-- | toolchain/gcc/gcc-uclibc-3.x.mk | 9 |
2 files changed, 18 insertions, 5 deletions
diff --git a/toolchain/gcc/Makefile.in b/toolchain/gcc/Makefile.in index 41e23cf591..1b6e241333 100644 --- a/toolchain/gcc/Makefile.in +++ b/toolchain/gcc/Makefile.in @@ -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 diff --git a/toolchain/gcc/gcc-uclibc-3.x.mk b/toolchain/gcc/gcc-uclibc-3.x.mk index 9eb6d776c0..c67a2699d5 100644 --- a/toolchain/gcc/gcc-uclibc-3.x.mk +++ b/toolchain/gcc/gcc-uclibc-3.x.mk @@ -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 $@ # |
