[Bug ld/29552] New: [GCC 12.2] the address of ‘elf_header’ will never be NULL [-Werror=address]

[hjl.tools at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=29552

            Bug ID: 29552
           Summary: [GCC 12.2] the address of ‘elf_header’ will never be
                    NULL [-Werror=address]
           Product: binutils
           Version: 2.40 (HEAD)
            Status: NEW
          Severity: normal
          Priority: P2
         Component: ld
          Assignee: unassigned at sourceware dot org
          Reporter: hjl.tools at gmail dot com
  Target Milestone: ---

GCC 12.2 failed to build binutils master branch:

/export/gnu/import/git/sources/binutils-gdb/ld/ldelf.c: In function
‘ldelf_after_open’:
/export/gnu/import/git/sources/binutils-gdb/ld/ldelf.c:1049:43: error: the
comparison will always evaluate as ‘true’ for the address of ‘elf_header’ will
never be NULL [-Werror=address]
 1049 |           && elf_tdata (abfd)->elf_header != NULL 
      |                                           ^~
In file included from
/export/gnu/import/git/sources/binutils-gdb/ld/ldelf.c:37:
/export/gnu/import/git/sources/binutils-gdb/ld/../bfd/elf-bfd.h:1930:21: note:
‘elf_header’ declared here 
 1930 |   Elf_Internal_Ehdr elf_header[1];      /* Actual data, but ref like
ptr */
      |                     ^~~~~~~~~~

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