[binutils-gdb] x86-64: Return SHN_COMMON on non-ELF input

https://sourceware.org/git/gitweb.cgi?p=3Dbinutils-gdb.git;h=3D7322e9bc30cb=
282575a701c307851fd3d66fee68

commit 7322e9bc30cb282575a701c307851fd3d66fee68
Author: H.J. Lu <[email protected]>
Date:   Thu Jul 30 15:47:05 2026 +0800

    x86-64: Return SHN_COMMON on non-ELF input
   =20
    elf_x86_64_common_definition segfaults on PE/x86-64 input.  Return
    SHN_COMMON on non-ELF input.  Linker now gets assertion fail at
    bfd/coffgen.c:575, instead of getting segfault.
   =20
            PR ld/34449
            * elf64-x86-64.c (elf_x86_64_common_definition): Return
            SHN_COMMON on non-ELF input.
   =20
    Signed-off-by: H.J. Lu <[email protected]>

Diff:
---
 bfd/elf64-x86-64.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/bfd/elf64-x86-64.c b/bfd/elf64-x86-64.c
index ade6613b62a..3700520b40f 100644
--- a/bfd/elf64-x86-64.c
+++ b/bfd/elf64-x86-64.c
@@ -6091,7 +6091,8 @@ elf_x86_64_common_definition (Elf_Internal_Sym *sym)
 static unsigned int
 elf_x86_64_common_section_index (asection *sec)
 {
-  if ((elf_section_flags (sec) & SHF_X86_64_LARGE) =3D=3D 0)
+  if (bfd_get_flavour (sec->owner) !=3D bfd_target_elf_flavour
+      || (elf_section_flags (sec) & SHF_X86_64_LARGE) =3D=3D 0)
     return SHN_COMMON;
   else
     return SHN_X86_64_LCOMMON;