Without it compiler generates GPREL16 references which do not work
with our memory layout
Signed-off-by: Vladimir Serbinenko <phco...@gmail.com>
---
configure.ac | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/configure.ac b/configure.ac
index fe5493246..c3d9398ab 100644
--- a/configure.ac
+++ b/configure.ac
@@ -802,9 +802,21 @@ if test "x$target_cpu" = xmips || test "x$target_cpu" =
xmipsel ; then
if test "x$grub_cv_cc_mflush_func" = xyes; then
TARGET_CFLAGS="$TARGET_CFLAGS -mflush-func=grub_red_herring"
fi
+
+ AC_CACHE_CHECK([whether -mno-gpopt works], [grub_cv_cc_mno_gpopt], [
+ CFLAGS="$TARGET_CFLAGS -mno-gpopt -Werror"
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
+ [grub_cv_cc_mno_gpopt=yes],
+ [grub_cv_cc_mno_gpopt=no])
+ ])
+
+ if test "x$grub_cv_cc_mno_gpopt" = xyes; then
+ TARGET_CFLAGS="$TARGET_CFLAGS -mno-gpopt"
+ fi
fi
+
# Force no alignment to save space on i386.
if test "x$target_cpu" = xi386; then
TARGET_CFLAGS="$TARGET_CFLAGS -falign-functions=1"
--
2.39.2
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