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42 lines
1.4 KiB
Diff
42 lines
1.4 KiB
Diff
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Peter Jones <pjones@redhat.com>
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Date: Thu, 2 Aug 2018 10:56:38 -0400
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Subject: [PATCH] Disable non-wordsize allocations on arm
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Signed-off-by: Peter Jones <pjones@redhat.com>
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---
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configure.ac | 20 ++++++++++++++++++++
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1 file changed, 20 insertions(+)
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diff --git a/configure.ac b/configure.ac
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index 819212095ff..9323c125469 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -1234,6 +1234,26 @@ if test "x$target_cpu" = xarm; then
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done
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])
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+ AC_CACHE_CHECK([for options to disable movt and movw relocations],
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+ grub_cv_target_cc_mword_relocations,
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+ [grub_cv_target_cc_mword_relocations=no
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+ for cand in "-mword-relocations" ; do
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+ if test x"$grub_cv_target_cc_mword_relocations" != xno ; then
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+ break
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+ fi
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+ CFLAGS="$TARGET_CFLAGS $cand -Werror"
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+ CPPFLAGS="$TARGET_CPPFLAGS"
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+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
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+ [grub_cv_target_cc_mword_relocations="$cand"],
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+ [])
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+ done
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+ ])
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+ if test x"$grub_cv_target_cc_mword_relocations" = xno ; then
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+ AC_MSG_ERROR(["your compiler doesn't support disabling movw/movt relocations"])
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+ else
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+ TARGET_CFLAGS="$TARGET_CFLAGS $grub_cv_target_cc_mword_relocations"
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+ fi
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+
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if test x"$grub_cv_target_cc_mno_movt" != xno ; then
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# A trick so that clang doesn't see it on link stage
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TARGET_CPPFLAGS="$TARGET_CPPFLAGS $grub_cv_target_cc_mno_movt"
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