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target/linux: add preliminary 2.6.37 kernel support

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@23828 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
acoul
2010-11-03 16:13:33 +00:00
parent c588a703fe
commit 8be1093039
116 changed files with 67724 additions and 0 deletions
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21
target/linux/generic/patches-2.6.37/012-extra_optimization.patch Normal file
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@@ -0,0 +1,21 @@
--- a/Makefile
+++ b/Makefile
@@ -540,7 +540,7 @@ all: vmlinux
ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
KBUILD_CFLAGS += -Os
else
-KBUILD_CFLAGS += -O2
+KBUILD_CFLAGS += -O2 -fno-reorder-blocks -fno-tree-ch
endif
include $(srctree)/arch/$(SRCARCH)/Makefile
@@ -595,6 +595,9 @@ 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,)