diff options
| author | nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2011-04-16 18:31:05 +0000 |
|---|---|---|
| committer | nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2011-04-16 18:31:05 +0000 |
| commit | b2cab73a788f178bfe2f8620d8c4a483dfba34fc (patch) | |
| tree | d0285c3b8b16f40ed39ca88a77e257f6443ecb57 /target/linux/generic/patches-2.6.39/201-extra_optimization.patch | |
| parent | 5ed970594e5968204fd460981508316edc4c0298 (diff) | |
kernel: reorganize 2.6.39 patches
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@26691 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/generic/patches-2.6.39/201-extra_optimization.patch')
| -rw-r--r-- | target/linux/generic/patches-2.6.39/201-extra_optimization.patch | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/target/linux/generic/patches-2.6.39/201-extra_optimization.patch b/target/linux/generic/patches-2.6.39/201-extra_optimization.patch new file mode 100644 index 000000000..8039c6652 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/201-extra_optimization.patch @@ -0,0 +1,24 @@ +--- a/Makefile ++++ b/Makefile +@@ -543,9 +543,9 @@ endif # $(dot-config) + all: vmlinux + + ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE +-KBUILD_CFLAGS += -Os ++KBUILD_CFLAGS += -Os -fno-caller-saves + else +-KBUILD_CFLAGS += -O2 ++KBUILD_CFLAGS += -O2 -fno-reorder-blocks -fno-tree-ch -fno-caller-saves + endif + + include $(srctree)/arch/$(SRCARCH)/Makefile +@@ -600,6 +600,9 @@ endif + 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 + KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) + |