From: Vladimir Serbinenko <phcoder@gmail.com>
Date: Sat, 24 Jan 2015 19:37:08 +0000 (+0100)
Subject: Always add -msoft-float to avoid compiler generating float arithmetics.
X-Git-Tag: 2.02-beta3~542
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3661261f;p=thirdparty%2Fgrub.git

Always add -msoft-float to avoid compiler generating float arithmetics.
---

diff --git a/configure.ac b/configure.ac
index fdddbaddc..b734dd0ba 100644
--- a/configure.ac
+++ b/configure.ac
@@ -671,6 +671,12 @@ if ( test "x$target_cpu" = xi386 || test "x$target_cpu" = xx86_64 ) && test "x$p
   TARGET_CFLAGS="$TARGET_CFLAGS -mno-mmx -mno-sse -mno-sse2 -mno-3dnow"
 fi
 
+# GRUB doesn't use float or doubles at all. Yet some toolchains may decide
+# that floats are a good fit to run instead of what's written in the code.
+# Given that floating point unit is disabled (if present to begin with)
+# when GRUB is running which may result in various hard crashes.
+TARGET_CFLAGS="$TARGET_CFLAGS -msoft-float"
+
 # By default, GCC 4.4 generates .eh_frame sections containing unwind
 # information in some cases where it previously did not. GRUB doesn't need
 # these and they just use up vital space. Restore the old compiler