diff options
Diffstat (limited to 'bfd/elfcode.h')
| -rw-r--r-- | bfd/elfcode.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/bfd/elfcode.h b/bfd/elfcode.h index b94f74b..40bbaf5 100644 --- a/bfd/elfcode.h +++ b/bfd/elfcode.h @@ -502,6 +502,8 @@ elf_object_p (abfd) struct elf_obj_tdata *preserved_tdata = elf_tdata (abfd); struct sec *preserved_sections = abfd->sections; unsigned int preserved_section_count = abfd->section_count; + enum bfd_architecture previous_arch = bfd_get_arch (abfd); + unsigned long previous_mach = bfd_get_mach (abfd); struct elf_obj_tdata *new_tdata = NULL; asection *s; @@ -742,6 +744,16 @@ elf_object_p (abfd) return (abfd->xvec); got_wrong_format_error: + /* There is way too much undoing of half-known state here. The caller, + bfd_check_format_matches, really shouldn't iterate on live bfd's to + check match/no-match like it does. We have to rely on that a call to + bfd_default_set_arch_mach with the previously known mach, undoes what + was done by the first bfd_default_set_arch_mach (with mach 0) here. + For this to work, only elf-data and the mach may be changed by the + target-specific elf_backend_object_p function. Note that saving the + whole bfd here and restoring it would be even worse; the first thing + you notice is that the cached bfd file position gets out of sync. */ + bfd_default_set_arch_mach (abfd, previous_arch, previous_mach); bfd_set_error (bfd_error_wrong_format); got_no_match: if (new_tdata != NULL |