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| author | Florian Fainelli <florian@openwrt.org> | 2013-01-08 22:19:31 +0000 |
|---|---|---|
| committer | Florian Fainelli <florian@openwrt.org> | 2013-01-08 22:19:31 +0000 |
| commit | ce99d2278c894e83d931741f6652904908cc382b (patch) | |
| tree | eca211bce457b867f3e5fd2acded634db17c76cf /target/linux/generic/patches-3.8/201-extra_optimization.patch | |
| parent | 44cf7625b0ff51ffea83b8142e69002aee6fc4eb (diff) | |
| download | master-187ad058-ce99d2278c894e83d931741f6652904908cc382b.tar.gz master-187ad058-ce99d2278c894e83d931741f6652904908cc382b.tar.bz2 master-187ad058-ce99d2278c894e83d931741f6652904908cc382b.zip | |
kernel: add support for 3.8-rc2
Signed-off-by: Florian Fainelli <florian@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@35055 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/generic/patches-3.8/201-extra_optimization.patch')
| -rw-r--r-- | target/linux/generic/patches-3.8/201-extra_optimization.patch | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/target/linux/generic/patches-3.8/201-extra_optimization.patch b/target/linux/generic/patches-3.8/201-extra_optimization.patch new file mode 100644 index 0000000000..d94d2cf3a8 --- /dev/null +++ b/target/linux/generic/patches-3.8/201-extra_optimization.patch @@ -0,0 +1,24 @@ +--- a/Makefile ++++ b/Makefile +@@ -570,9 +570,9 @@ 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 +@@ -645,6 +645,9 @@ 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,) + |