kernel: add support for 3.9-rc2

Signed-off-by: Florian Fainelli <florian@openwrt.org>

SVN-Revision: 36008
This commit is contained in:
Florian Fainelli
2013-03-14 14:45:56 +00:00
parent 32f3b1e358
commit b2e63b8ea8
156 changed files with 30824 additions and 0 deletions

View File

@@ -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,)