45 lines
1.8 KiB
Diff
45 lines
1.8 KiB
Diff
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From 5cea201f288246488e2189c49d969d00ebec2898 Mon Sep 17 00:00:00 2001
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From: Michael Chang <mchang@suse.com>
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Date: Fri, 19 Feb 2021 17:40:43 +0800
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Subject: [PATCH] Fix build error in binutils 2.36
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The build fails in binutils 2.36
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[ 520s] cat kernel_syms.lst > syminfo.lst.new
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[ 520s] /usr/lib64/gcc/x86_64-suse-linux/10/../../../../x86_64-suse-linux/bin/ld: section .note.gnu.property VMA [0000000000400158,0000000000400187] overlaps section .bss VMA [000000000000f000,000000000041e1af]
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It is caused by assembler now generates the GNU property notes section
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by default. Use the assmbler option -mx86-used-note=no to disable the
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section from being generated to workaround the ensuing linker issue.
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Signed-off-by: Michael Chang <mchang@suse.com>
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---
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configure.ac | 14 ++++++++++++++
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1 file changed, 14 insertions(+)
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diff --git a/configure.ac b/configure.ac
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index fa8f74bb9..38ee5f579 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -836,6 +836,20 @@ if ( test "x$target_cpu" = xi386 || test "x$target_cpu" = xx86_64 ) && test "x$p
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TARGET_CFLAGS="$TARGET_CFLAGS -mno-mmx -mno-sse -mno-sse2 -mno-sse3 -mno-3dnow"
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fi
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+if ( test "x$target_cpu" = xi386 || test "x$target_cpu" = xx86_64 ); then
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+ AC_CACHE_CHECK([whether -Wa,-mx86-used-note works], [grub_cv_cc_mx86_used_note], [
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+ CFLAGS="$TARGET_CFLAGS -Wa,-mx86-used-note=no -Werror"
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+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
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+ [grub_cv_cc_mx86_used_note=yes],
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+ [grub_cv_cc_mx86_used_note=no])
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+ ])
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+
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+ if test "x$grub_cv_cc_mx86_used_note" = xyes; then
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+ TARGET_CFLAGS="$TARGET_CFLAGS -Wa,-mx86-used-note=no"
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+ TARGET_CCASFLAGS="$TARGET_CCASFLAGS -Wa,-mx86-used-note=no"
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+ fi
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+fi
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+
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# GRUB doesn't use float or doubles at all. Yet some toolchains may decide
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# that floats are a good fit to run instead of what's written in the code.
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# Given that floating point unit is disabled (if present to begin with)
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