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author | Felix Fietkau <nbd@openwrt.org> | 2011-04-16 18:30:57 +0000 |
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committer | Felix Fietkau <nbd@openwrt.org> | 2011-04-16 18:30:57 +0000 |
commit | 80a4ffa1e2bc5f3ef893251babb2371c502f04ad (patch) | |
tree | e6fb6200183e257b8f8cf45857f359b053bd2a0d /target/linux/generic/patches-2.6.38/201-extra_optimization.patch | |
parent | a0559785226c7d84cf34686c0d5be8f4e15fdfe6 (diff) | |
download | upstream-80a4ffa1e2bc5f3ef893251babb2371c502f04ad.tar.gz upstream-80a4ffa1e2bc5f3ef893251babb2371c502f04ad.tar.bz2 upstream-80a4ffa1e2bc5f3ef893251babb2371c502f04ad.zip |
kernel: reorganize 2.6.38 patches, clean up block2mtd patches
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@26690 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/generic/patches-2.6.38/201-extra_optimization.patch')
-rw-r--r-- | target/linux/generic/patches-2.6.38/201-extra_optimization.patch | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/target/linux/generic/patches-2.6.38/201-extra_optimization.patch b/target/linux/generic/patches-2.6.38/201-extra_optimization.patch new file mode 100644 index 0000000000..d173e4c753 --- /dev/null +++ b/target/linux/generic/patches-2.6.38/201-extra_optimization.patch @@ -0,0 +1,24 @@ +--- a/Makefile ++++ b/Makefile +@@ -539,9 +539,9 @@ 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 +@@ -596,6 +596,9 @@ 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,) + |