klibc-bot for Anton Blanchard
2013-Dec-03 18:57 UTC
[klibc] [klibc:master] ppc64: build with -mcmodel=small
Commit-ID: cb90a942dcb20ca34ea6d7b2f3df80d28378d871 Gitweb: http://git.kernel.org/?p=libs/klibc/klibc.git;a=commit;h=cb90a942dcb20ca34ea6d7b2f3df80d28378d871 Author: Anton Blanchard <anton at samba.org> AuthorDate: Tue, 3 Dec 2013 18:19:06 +1100 Committer: H. Peter Anvin <hpa at zytor.com> CommitDate: Tue, 3 Dec 2013 10:53:31 -0800 [klibc] ppc64: build with -mcmodel=small If available, use -mcmodel=small. klibc is small enough that we should never hit the limits of the small memory model. This produces better code, for example: 000000000f003890 <.strcasecmp>: f003890: 3c a2 ff fe addis r5,r2,-2 ... f003898: 38 c5 23 58 addi r6,r5,9048 ... f0038ac: 7d 46 50 ae lbzx r10,r6,r10 vs: 000000000f0037c4 <.strcasecmp>: f0037c4: e8 c2 81 48 ld r6,-32440(r2) f0037dc: 7d 46 50 ae lbzx r10,r6,r10 Signed-off-by: Anton Blanchard <anton at samba.org> Signed-off-by: H. Peter Anvin <hpa at zytor.com> --- usr/klibc/arch/ppc64/MCONFIG | 1 + 1 file changed, 1 insertion(+) diff --git a/usr/klibc/arch/ppc64/MCONFIG b/usr/klibc/arch/ppc64/MCONFIG index 0294c44..1331e05 100644 --- a/usr/klibc/arch/ppc64/MCONFIG +++ b/usr/klibc/arch/ppc64/MCONFIG @@ -9,6 +9,7 @@ KLIBCARCHREQFLAGS = -m64 KLIBCARCHREQFLAGS += $(call cc-option, -mcall-aixdesc, ) +KLIBCARCHREQFLAGS += $(call cc-option, -mcmodel=small, ) KLIBCOPTFLAGS += -Os KLIBCBITSIZE = 64