Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=966d905634de4433cea465fdcea19503c4ae260f
Commit: 966d905634de4433cea465fdcea19503c4ae260f
Parent: 54cd6ddec77b75e6926d73d263aec72255b24030
Author: David S. Miller <[EMAIL PROTECTED]>
AuthorDate: Thu Feb 14 00:58:44 2008 -0800
Committer: David S. Miller <[EMAIL PROTECTED]>
CommitDate: Sun Feb 17 22:43:34 2008 -0800
[SPARC64]: Add -mtune=ultrasparc3 if possible.
This gives better heuristics for the cost of a multiply (fixed
5 cycles), rather than the 'ultrasparc' setting (variable, and
unpredictable if the second argument is non-constant).
Example code size savings:
text data bss dec hex filename
3823690 304040 448880 4576610 45d562 vmlinux
3824521 304040 448880 4577441 45d8a1 vmlinux.orig
Signed-off-by: David S. Miller <[EMAIL PROTECTED]>
---
arch/sparc64/Makefile | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/arch/sparc64/Makefile b/arch/sparc64/Makefile
index 848e334..f0c22f8 100644
--- a/arch/sparc64/Makefile
+++ b/arch/sparc64/Makefile
@@ -17,6 +17,7 @@ LDFLAGS := -m elf64_sparc
KBUILD_CFLAGS += -m64 -pipe -mno-fpu -mcpu=ultrasparc -mcmodel=medlow \
-ffixed-g4 -ffixed-g5 -fcall-used-g7 -Wno-sign-compare \
-Wa,--undeclared-regs
+KBUILD_CFLAGS += $(call cc-option,-mtune=ultrasparc3)
KBUILD_AFLAGS += -m64 -mcpu=ultrasparc -Wa,--undeclared-regs
ifeq ($(CONFIG_MCOUNT),y)
-
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