| From 97fe7f1b23ea1f17533884b8fa7f7eb40087d558 Mon Sep 17 00:00:00 2001 |
| From: Khem Raj <raj.khem@gmail.com> |
| Date: Tue, 5 Jan 2016 17:50:00 -0800 |
| Subject: [PATCH] When disabling SSE, make sure -fpmath is not set to use SSE |
| either |
| |
| This fixes errors when we inject sse options through CFLAGS and now |
| that we have -Werror turned on by default this warning turns to become |
| error on x86 |
| |
| gcc -m32 -march=core2 -mtune=core2 -msse3 -mfpmath=sse -x c /dev/null -S |
| -mno-sse -mno-mmx |
| |
| generates warning |
| /dev/null:1:0: warning: SSE instruction set disabled, using 387 |
| arithmetics |
| |
| where as |
| |
| gcc -m32 -march=core2 -mtune=core2 -msse3 -mfpmath=sse -x c /dev/null -S |
| -mno-sse -mno-mmx -mfpmath=387 |
| |
| Generates no warnings |
| |
| Signed-off-by: Khem Raj <raj.khem@gmail.com> |
| --- |
| Upstream-Status: Submitted |
| |
| ChangeLog | 5 +++++ |
| sysdeps/i386/Makefile | 2 +- |
| 2 files changed, 6 insertions(+), 1 deletion(-) |
| |
| diff --git a/sysdeps/i386/Makefile b/sysdeps/i386/Makefile |
| index 168512f..70153b3 100644 |
| --- a/sysdeps/i386/Makefile |
| +++ b/sysdeps/i386/Makefile |
| @@ -89,7 +89,7 @@ ifeq ($(subdir),elf) |
| # the first 3 mm/xmm/ymm/zmm registers are used to pass vector parameters |
| # which must be preserved. |
| CFLAGS-.os += $(if $(filter $(@F),$(patsubst %,%.os,$(all-rtld-routines))),\ |
| - -mno-sse -mno-mmx) |
| + -mno-sse -mno-mmx -mfpmath=387) |
| |
| tests-special += $(objpfx)tst-ld-sse-use.out |
| $(objpfx)tst-ld-sse-use.out: ../sysdeps/i386/tst-ld-sse-use.sh $(objpfx)ld.so |
| -- |
| 2.6.4 |
| |