https://sourceware.org/bugzilla/show_bug.cgi?id=33863
Bug ID: 33863
Summary: ld: internal error in
_bfd_x86_elf_merge_gnu_properties with -z
x86-64-baseline
Product: binutils
Version: 2.45.1
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: ld
Assignee: unassigned at sourceware dot org
Reporter: gandalf at winds dot org
Target Milestone: ---
Using flag -z x86-64-baseline in ld 2.45.1 on a 32 & 64-bit multilib Gentoo OS
built with -march=x86-64-v3 causes the following error:
/usr/lib/gcc/x86_64-pc-linux-gnu/15/../../../../x86_64-pc-linux-gnu/bin/ld: BFD
(Gentoo 2.45.1 p1) 2.45.1 internal error, aborting at
/var/tmp/portage/sys-devel/binutils-2.45.1/work/binutils-2.45.1/bfd/elfxx-x86.c:4049
in _bfd_x86_elf_merge_gnu_properties
Please report this bug.
Steps to reproduce on 64-bit x86-64-v3 Gentoo OS:
cat > test.c <<EOF
int main()
{
return 0;
}
EOF
gcc -Wl,-z,x86-64-baseline test.c -o test
Without this flag, compiling produces the following gnu property note in the
executable:
GNU 0x00000024 NT_GNU_PROPERTY_TYPE_0
Properties: x86 ISA needed: x86-64-baseline, x86-64-v2, x86-64-v3, x86 feature
used: x86, x86 ISA used:
The real intent is to
1) compile the executable using "-m32 -march=i686" while in the
-march=x86-64-v3 OS
2) remove any x86-64-v2+ requirements from the gnu property note
3) copy the resulting executable to a 32-bit-only Gentoo OS system built solely
with -march=i686
4) expect this to run in 32-bit mode on x86-64-v2 or older hardware just like
it used to with previous versions of binutils.
My current workaround is to run "strip --remove-section=.note.gnu.property" on
the resulting executable.
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