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authorVineet Gupta <vgupta@synopsys.com>2015-06-18 13:54:01 +0530
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-08-10 12:21:52 -0700
commitbad8eab06cbce7ef086e60a5e5dff3923f831d61 (patch)
tree609435f5ae77d7a3adfbf7879189f777152fc15f /arch/arc
parenta2bfecc423b5f96bbf9d5acb22fbceea084cc2d5 (diff)
ARC: Override toplevel default -O2 with -O3
commit 97709069214eb75312c14946803b9da4d3814203 upstream. 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> Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/arc')
-rw-r--r--arch/arc/Makefile3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arc/Makefile b/arch/arc/Makefile
index db72fec0e160..2f21e1e0ecf7 100644
--- a/arch/arc/Makefile
+++ b/arch/arc/Makefile
@@ -43,7 +43,8 @@ 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