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| author | Felix Fietkau <nbd@openwrt.org> | 2011-04-16 18:31:05 +0000 |
|---|---|---|
| committer | Felix Fietkau <nbd@openwrt.org> | 2011-04-16 18:31:05 +0000 |
| commit | c19a05ddc769a8b14837218fea04fe8b5c887eee (patch) | |
| tree | d0285c3b8b16f40ed39ca88a77e257f6443ecb57 /target/linux/generic/patches-2.6.39/201-extra_optimization.patch | |
| parent | 80a4ffa1e2bc5f3ef893251babb2371c502f04ad (diff) | |
| download | master-187ad058-c19a05ddc769a8b14837218fea04fe8b5c887eee.tar.gz master-187ad058-c19a05ddc769a8b14837218fea04fe8b5c887eee.tar.bz2 master-187ad058-c19a05ddc769a8b14837218fea04fe8b5c887eee.zip | |
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 0000000000..8039c66523 --- /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,) + |