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authorFelix Fietkau <nbd@openwrt.org>2012-12-28 19:17:19 +0000
committerFelix Fietkau <nbd@openwrt.org>2012-12-28 19:17:19 +0000
commit41a039f46450ffae9483d6216422098669da2900 (patch)
treea5a1e6dd1828f1a8eb5adf672d49098dc71a88f7 /target/linux/generic/patches-3.6
parente7719bb4aa7830d5422281421a0f5f6e0d3675d8 (diff)
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mips: use -mno-branch-likely for kernel and userspace, saves ~11k kernel size after lzma and ~12k squashfs size in the default configuration
SVN-Revision: 34909
Diffstat (limited to 'target/linux/generic/patches-3.6')
-rw-r--r--target/linux/generic/patches-3.6/302-mips_no_branch_likely.patch11
-rw-r--r--target/linux/generic/patches-3.6/305-mips_module_reloc.patch2
2 files changed, 12 insertions, 1 deletions
diff --git a/target/linux/generic/patches-3.6/302-mips_no_branch_likely.patch b/target/linux/generic/patches-3.6/302-mips_no_branch_likely.patch
new file mode 100644
index 0000000000..1da9540050
--- /dev/null
+++ b/target/linux/generic/patches-3.6/302-mips_no_branch_likely.patch
@@ -0,0 +1,11 @@
+--- a/arch/mips/Makefile
++++ b/arch/mips/Makefile
+@@ -87,7 +87,7 @@ all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlin
+ # machines may also. Since BFD is incredibly buggy with respect to
+ # crossformat linking we rely on the elf2ecoff tool for format conversion.
+ #
+-cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
++cflags-y += -G 0 -mno-abicalls -fno-pic -pipe -mno-branch-likely
+ cflags-y += -msoft-float
+ LDFLAGS_vmlinux += -G 0 -static -n -nostdlib
+ KBUILD_AFLAGS_MODULE += -mlong-calls
diff --git a/target/linux/generic/patches-3.6/305-mips_module_reloc.patch b/target/linux/generic/patches-3.6/305-mips_module_reloc.patch
index fea4a00129..a2738dca7e 100644
--- a/target/linux/generic/patches-3.6/305-mips_module_reloc.patch
+++ b/target/linux/generic/patches-3.6/305-mips_module_reloc.patch
@@ -1,7 +1,7 @@
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -90,8 +90,8 @@ all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlin
- cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
+ cflags-y += -G 0 -mno-abicalls -fno-pic -pipe -mno-branch-likely
cflags-y += -msoft-float
LDFLAGS_vmlinux += -G 0 -static -n -nostdlib
-KBUILD_AFLAGS_MODULE += -mlong-calls