diff options
| author | florian <florian@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2013-03-14 14:45:56 +0000 |
|---|---|---|
| committer | florian <florian@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2013-03-14 14:45:56 +0000 |
| commit | 05ea13b746e715f03c70e29068b650a62e5e5d79 (patch) | |
| tree | 08d6be7813310be182259388518215a17afcc18c /target/linux/generic/patches-3.9/201-extra_optimization.patch | |
| parent | 54d0b82f17bde2e67b8a2b58c1cb3e9ba294e9b7 (diff) | |
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 000000000..e78a00aa0 --- /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,) + |