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authorjogo <jogo@3c298f89-4303-0410-b956-a3cf2f4a3e73>2013-05-19 18:36:15 +0000
committerjogo <jogo@3c298f89-4303-0410-b956-a3cf2f4a3e73>2013-05-19 18:36:15 +0000
commitf6ad0fc9373a736f9640d698e557c86dc6074edd (patch)
tree6b6bd393ef7dac1fdb3f9503f6bfc07e09b2ad25 /target/linux/generic/patches-3.10/201-extra_optimization.patch
parent8c9642e945c54e21f0a0522bc76ada78d6017eb8 (diff)
kernel: generic: add 3.10-rc1 support
Signed-off-by: Jonas Gorski <jogo@openwrt.org> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36663 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/generic/patches-3.10/201-extra_optimization.patch')
-rw-r--r--target/linux/generic/patches-3.10/201-extra_optimization.patch24
1 files changed, 24 insertions, 0 deletions
diff --git a/target/linux/generic/patches-3.10/201-extra_optimization.patch b/target/linux/generic/patches-3.10/201-extra_optimization.patch
new file mode 100644
index 000000000..051ede1c6
--- /dev/null
+++ b/target/linux/generic/patches-3.10/201-extra_optimization.patch
@@ -0,0 +1,24 @@
+--- a/Makefile
++++ b/Makefile
+@@ -571,9 +571,9 @@ endif # $(dot-config)
+ all: vmlinux
+
+ ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
+-KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,)
++KBUILD_CFLAGS += -Os -fno-caller-saves $(call cc-disable-warning,maybe-uninitialized,)
+ else
+-KBUILD_CFLAGS += -O2
++KBUILD_CFLAGS += -O2 -fno-reorder-blocks -fno-tree-ch -fno-caller-saves
+ endif
+
+ include $(srctree)/arch/$(SRCARCH)/Makefile
+@@ -647,6 +647,9 @@ 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,)
+