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| author | Florian Fainelli <florian@openwrt.org> | 2013-03-14 14:45:56 +0000 |
|---|---|---|
| committer | Florian Fainelli <florian@openwrt.org> | 2013-03-14 14:45:56 +0000 |
| commit | ddc8718f7f4ef9723e026efac811d3338e6bcddb (patch) | |
| tree | 08d6be7813310be182259388518215a17afcc18c /target/linux/generic/patches-3.9/201-extra_optimization.patch | |
| parent | 6cb1f067dc42c4bffa8862448167486333d0227e (diff) | |
| download | upstream-ddc8718f7f4ef9723e026efac811d3338e6bcddb.tar.gz upstream-ddc8718f7f4ef9723e026efac811d3338e6bcddb.tar.bz2 upstream-ddc8718f7f4ef9723e026efac811d3338e6bcddb.zip | |
kernel: add support for 3.9-rc2
Signed-off-by: Florian Fainelli <florian@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36008 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/generic/patches-3.9/201-extra_optimization.patch')
| -rw-r--r-- | target/linux/generic/patches-3.9/201-extra_optimization.patch | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/target/linux/generic/patches-3.9/201-extra_optimization.patch b/target/linux/generic/patches-3.9/201-extra_optimization.patch new file mode 100644 index 0000000000..e78a00aa09 --- /dev/null +++ b/target/linux/generic/patches-3.9/201-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 +@@ -646,6 +646,9 @@ 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,) + |