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authorhauke <hauke@3c298f89-4303-0410-b956-a3cf2f4a3e73>2011-06-15 21:31:01 +0000
committerhauke <hauke@3c298f89-4303-0410-b956-a3cf2f4a3e73>2011-06-15 21:31:01 +0000
commited6be451a0906c1d99e8726307f73a7997b8e70c (patch)
treeddcbfa29bdb1ce96cc700e7ed428a098053ecf8f /target/linux/generic/patches-3.0/201-extra_optimization.patch
parentaaffd9709f6d001dae9ba9dbbe88ceb6cfd961de (diff)
linux/generic: Add support for 3.0-rc3
Also make linux identify itself properly as 3.0, not 3.0.0. Signed-off-by: Jonas Gorski <jonas.gorski+openwrt@gmail.com> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27191 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/generic/patches-3.0/201-extra_optimization.patch')
-rw-r--r--target/linux/generic/patches-3.0/201-extra_optimization.patch24
1 files changed, 24 insertions, 0 deletions
diff --git a/target/linux/generic/patches-3.0/201-extra_optimization.patch b/target/linux/generic/patches-3.0/201-extra_optimization.patch
new file mode 100644
index 0000000000..6fe8b0938d
--- /dev/null
+++ b/target/linux/generic/patches-3.0/201-extra_optimization.patch
@@ -0,0 +1,24 @@
+--- a/Makefile
++++ b/Makefile
+@@ -559,9 +559,9 @@ 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
+@@ -620,6 +620,9 @@ 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,)
+