diff options
| author | nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2005-10-23 21:06:51 +0000 |
|---|---|---|
| committer | nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2005-10-23 21:06:51 +0000 |
| commit | f95f964d048b3ef875962d4aacac5b725a25a7bf (patch) | |
| tree | 7078983cd632fa349bd542a9015722590df41032 | |
| parent | 0c2301c503c96b0d94457f46152a963521fa0d6d (diff) | |
add -funit-at-a-time in trunk/ as well
git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@2291 3c298f89-4303-0410-b956-a3cf2f4a3e73
| -rw-r--r-- | target/linux/linux-2.4/patches/generic/006-extra_optimization.patch | 24 | ||||
| -rw-r--r-- | target/linux/linux-2.6/patches/generic/004-extra_optimization.patch | 12 | ||||
| -rw-r--r-- | toolchain/Config.in | 2 | ||||
| -rw-r--r-- | toolchain/Config.in.devel | 4 |
4 files changed, 39 insertions, 3 deletions
diff --git a/target/linux/linux-2.4/patches/generic/006-extra_optimization.patch b/target/linux/linux-2.4/patches/generic/006-extra_optimization.patch new file mode 100644 index 000000000..5ae25cbfb --- /dev/null +++ b/target/linux/linux-2.4/patches/generic/006-extra_optimization.patch @@ -0,0 +1,24 @@ +--- linux-2.4.30/Makefile 2005-10-23 20:52:56.813948000 +0200 ++++ linux.dev/Makefile 2005-10-23 20:53:12.482927250 +0200 +@@ -89,6 +89,8 @@ + # standard CFLAGS + # + ++check_gcc = $(shell if $(CC) $(1) -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi) ++ + CPPFLAGS := -D__KERNEL__ -I$(HPATH) + + CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes -Wno-trigraphs -Os \ +@@ -100,6 +102,12 @@ + endif + AFLAGS := -D__ASSEMBLY__ $(CPPFLAGS) + ++CFLAGS += $(call check_gcc, -funit-at-a-time,) ++ ++ ++ ++ ++ + # + # ROOT_DEV specifies the default root-device when making the image. + # This can be either FLOPPY, CURRENT, /dev/xxxx or empty, in which case diff --git a/target/linux/linux-2.6/patches/generic/004-extra_optimization.patch b/target/linux/linux-2.6/patches/generic/004-extra_optimization.patch new file mode 100644 index 000000000..805d2f0ea --- /dev/null +++ b/target/linux/linux-2.6/patches/generic/004-extra_optimization.patch @@ -0,0 +1,12 @@ +--- linux-2.6.12.5/Makefile.old 2005-10-23 22:56:29.017270000 +0200 ++++ linux-2.6.12.5/Makefile 2005-10-23 22:57:23.226138500 +0200 +@@ -533,6 +533,9 @@ + NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) + CHECKFLAGS += $(NOSTDINC_FLAGS) + ++# improve gcc optimization ++CFLAGS += $(call cc-option,-funit-at-a-time,) ++ + # warn about C99 declaration after statement + CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) + diff --git a/toolchain/Config.in b/toolchain/Config.in index fd906f05f..67a331f04 100644 --- a/toolchain/Config.in +++ b/toolchain/Config.in @@ -24,5 +24,5 @@ config BR2_SOFT_FLOAT config BR2_TARGET_OPTIMIZATION string - default "-Os -pipe -mips32 -mtune=mips32" + default "-Os -pipe -mips32 -mtune=mips32 -funit-at-a-time" diff --git a/toolchain/Config.in.devel b/toolchain/Config.in.devel index c7ad48f7e..2f2bbc426 100644 --- a/toolchain/Config.in.devel +++ b/toolchain/Config.in.devel @@ -37,8 +37,8 @@ config BR2_SOFT_FLOAT config BR2_TARGET_OPTIMIZATION string "Target Optimizations" - default "-Os -pipe -march=i486" if BR2_i386 - default "-Os -pipe -mips32 -mtune=mips32" if BR2_mipsel + default "-Os -pipe -march=i486 -funit-at-a-time" if BR2_i386 + default "-Os -pipe -mips32 -mtune=mips32 -funit-at-a-time" if BR2_mipsel help Optimizations to use when building for the target host. |