poky/meta/recipes-bsp/grub/files/0001-Disable-mfpmath-sse-as-well-when-SSE-is-disabled.patch

From 96d9aa55d29b24e2490d5647a9efc66940fc400f Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Wed, 13 Jan 2016 19:17:31 +0000
Subject: [PATCH] Disable -mfpmath=sse as well when SSE is disabled

Fixes

configure:20574: i586-poky-linux-gcc  -m32    -march=core2 -msse3
-mtune=generic -mfpmath=sse
--sysroot=/usr/local/dev/yocto/grubtest2/build/tmp/sysroots/emenlow -o
conftest -O2 -pipe -g -feliminate-unused-debug-types -Wall -W -Wshadow
-Wpointer-arith -Wmissing-prototypes -Wundef -Wstrict-prototypes -g
-falign-jumps=1 -falign-loops=1 -falign-functions=1 -mno-mmx -mno-sse
-mno-sse2 -mno-3dnow -fno-dwarf2-cfi-asm -m32 -fno-stack-protector
-mno-stack-arg-probe -Werror -nostdlib -Wl,--defsym,___main=0x8100
-Wall -W -I$(top_srcdir)/include -I$(top_builddir)/include
-DGRUB_MACHINE_PCBIOS=1 -DGRUB_MACHINE=I386_PC -Wl,-O1
-Wl,--hash-style=gnu -Wl,--as-needed conftest.c  >&5
conftest.c:1:0: error: SSE instruction set disabled, using 387
arithmetics [-Werror]
cc1: all warnings being treated as errors

Signed-off-by: Nitin A Kamble <nitin.a.kamble@intel.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

Upstream-Status: Pending
---
 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 7656f24..0868ea9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -824,7 +824,7 @@ fi
 if ( test "x$target_cpu" = xi386 || test "x$target_cpu" = xx86_64 ) && test "x$platform" != xemu; then
   # Some toolchains enable these features by default, but they need
   # registers that aren't set up properly in GRUB.
-  TARGET_CFLAGS="$TARGET_CFLAGS -mno-mmx -mno-sse -mno-sse2 -mno-sse3 -mno-3dnow"
+  TARGET_CFLAGS="$TARGET_CFLAGS -mno-mmx -mno-sse -mno-sse2 -mno-sse3 -mno-3dnow -mfpmath=387"
 fi
 
 # GRUB doesn't use float or doubles at all. Yet some toolchains may decide