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configure: Disable movw/movt with clang.

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Those relocations are not compatible with PE and also
not compatible with custom uboot relocator.
Disable them.
This commit is contained in:
Vladimir Serbinenko 2017-01-23 00:52:32 +03:00
parent afa9dda37e
commit bf9c561670
1 changed files with 10 additions and 0 deletions
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10
configure.ac
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@ -1152,6 +1152,16 @@ if test "$target_cpu"-"$platform" = x86_64-efi; then
fi
if test "x$target_cpu" = xarm; then
AC_CACHE_CHECK([whether option -mllvm -arm-use-movt=0 works], grub_cv_cc_mllvm_arm_use_movt, [
CPPFLAGS="$TARGET_CPPFLAGS -mllvm -arm-use-movt=0 -Werror"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
[grub_cv_cc_mllvm_arm_use_movt=yes],
[grub_cv_cc_mllvm_arm_use_movt=no])
])
if test "x$grub_cv_cc_mllvm_arm_use_movt" = xyes; then
# A trick so that clang doesn't see it on link stage
TARGET_CPPFLAGS="$TARGET_CPPFLAGS -mllvm -arm-use-movt=0"
fi
AC_CACHE_CHECK([whether option -mlong-calls works], grub_cv_cc_mlong_calls, [
CFLAGS="$TARGET_CFLAGS -mlong-calls -Werror"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],