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authoracoul <acoul@3c298f89-4303-0410-b956-a3cf2f4a3e73>2010-03-11 12:24:17 +0000
committeracoul <acoul@3c298f89-4303-0410-b956-a3cf2f4a3e73>2010-03-11 12:24:17 +0000
commit90a9fdc494ca617f3acd8d398ad41f7085a41f2a (patch)
treeda443108ade7fa374fd71cd77dd7913fc456ba1e /target/linux/generic-2.6/patches-2.6.34/012-extra_optimization.patch
parentac3b23b9701f95c2fcadd983ae696524712e6261 (diff)
generic-2.6: add 2.6.34 preliminary support (patches)
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@20140 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/generic-2.6/patches-2.6.34/012-extra_optimization.patch')
-rw-r--r--target/linux/generic-2.6/patches-2.6.34/012-extra_optimization.patch21
1 files changed, 21 insertions, 0 deletions
diff --git a/target/linux/generic-2.6/patches-2.6.34/012-extra_optimization.patch b/target/linux/generic-2.6/patches-2.6.34/012-extra_optimization.patch
new file mode 100644
index 0000000000..0b5174cbbd
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.34/012-extra_optimization.patch
@@ -0,0 +1,21 @@
+--- a/Makefile
++++ b/Makefile
+@@ -529,7 +529,7 @@ 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
+@@ -567,6 +567,9 @@ 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,)
+