From 3661261fe17a8fe19681073889b5b36ec1ee823d Mon Sep 17 00:00:00 2001 From: Vladimir Serbinenko Date: Sat, 24 Jan 2015 20:37:08 +0100 Subject: [PATCH] Always add -msoft-float to avoid compiler generating float arithmetics. --- configure.ac | 6 ++++++ 1 file changed, 6 insertions(+) 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