From d53eec088e43eca8161c16adb56dde954141e2d5 Mon Sep 17 00:00:00 2001 From: nbd Date: Fri, 28 Dec 2012 19:17:19 +0000 Subject: mips: use -mno-branch-likely for kernel and userspace, saves ~11k kernel size after lzma and ~12k squashfs size in the default configuration git-svn-id: svn://svn.openwrt.org/openwrt/trunk@34909 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- .../linux/generic/patches-3.6/302-mips_no_branch_likely.patch | 11 +++++++++++ target/linux/generic/patches-3.6/305-mips_module_reloc.patch | 2 +- 2 files changed, 12 insertions(+), 1 deletion(-) create mode 100644 target/linux/generic/patches-3.6/302-mips_no_branch_likely.patch (limited to 'target/linux/generic/patches-3.6') 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 000000000..1da954005 --- /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-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlin + # machines may also. Since BFD is incredibly buggy with respect to + # crossformat linking we rely on the elf2ecoff tool for format conversion. + # +-cflags-y += -G 0 -mno-abicalls -fno-pic -pipe ++cflags-y += -G 0 -mno-abicalls -fno-pic -pipe -mno-branch-likely + cflags-y += -msoft-float + LDFLAGS_vmlinux += -G 0 -static -n -nostdlib + KBUILD_AFLAGS_MODULE += -mlong-calls diff --git a/target/linux/generic/patches-3.6/305-mips_module_reloc.patch b/target/linux/generic/patches-3.6/305-mips_module_reloc.patch index fea4a0012..a2738dca7 100644 --- a/target/linux/generic/patches-3.6/305-mips_module_reloc.patch +++ b/target/linux/generic/patches-3.6/305-mips_module_reloc.patch @@ -1,7 +1,7 @@ --- a/arch/mips/Makefile +++ b/arch/mips/Makefile @@ -90,8 +90,8 @@ all-$(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 -- cgit v1.2.3