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authorVineet Gupta <vgupta@synopsys.com>2015-06-18 11:24:01 +0300
committerVineet Gupta <vgupta@synopsys.com>2015-07-06 08:39:00 +0300
commit97709069214eb75312c14946803b9da4d3814203 (patch)
tree87cf225fae4cec9ed301300ab71f34fe70d9d453 /arch/arc/Makefile
parent61754c18752ffb78145671e94f053fb202fff041 (diff)
downloadlinux-97709069214eb75312c14946803b9da4d3814203.tar.xz
ARC: Override toplevel default -O2 with -O3
ARC kernels have historically been built with -O3, despite top level Makefile defaulting to -O2. This was facilitated by implicitly ordering of arch makefile include AFTER top level assigned -O2. An upstream fix to top level a1c48bb160f ("Makefile: Fix unrecognized cross-compiler command line options") changed the ordering, making ARC -O3 defunct. Fix that by NOT relying on any ordering whatsoever and use the proper arch override facility now present in kbuild (ARCH_*FLAGS) Depends-on: ("kbuild: Allow arch Makefiles to override {cpp,ld,c}flags") Suggested-by: Michal Marek <mmarek@suse.cz> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: stable@vger.kernel.org # 3.16+ Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc/Makefile')
-rw-r--r--arch/arc/Makefile3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arc/Makefile b/arch/arc/Makefile
index 6107062c0111..46d87310220d 100644
--- a/arch/arc/Makefile
+++ b/arch/arc/Makefile
@@ -49,7 +49,8 @@ endif
ifndef CONFIG_CC_OPTIMIZE_FOR_SIZE
# Generic build system uses -O2, we want -O3
-cflags-y += -O3
+# Note: No need to add to cflags-y as that happens anyways
+ARCH_CFLAGS += -O3
endif
# small data is default for elf32 tool-chain. If not usable, disable it