diff options
| author | Alan Modra <amodra@gmail.com> | 2017-04-27 11:08:14 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2017-04-27 11:54:29 +0930 |
| commit | d7153c4ac333c9127c18efcf184607d368bb142d (patch) | |
| tree | 72ca75116b4aadb183ba62ac329282406e67a064 /bfd/elflink.c | |
| parent | 641338d8e9b62bde9672f13f0dca2324b61e46e2 (diff) | |
Edit .eh_frame symbols
Experimental support for moving symbols defined in .eh_frame as their
CIEs/FDEs are edited or merged.
* elf-bfd.h (struct eh_cie_fde): Add aug_str_len and aug_data_len.
(_bfd_elf_adjust_eh_frame_global_symbol): Declare.
* elf-eh-frame.c (_bfd_elf_parse_eh_frame): Set aug_str_len and
aug_data_len.
(offset_adjust): New function.
(_bfd_elf_adjust_eh_frame_global_symbol): Likewise.
(adjust_eh_frame_local_symbols): Likewise.
(_bfd_elf_discard_section_eh_frame): Call adjust_eh_frame_local_symbols
after changing anything. Return true if anything changed.
* elflink.c (bfd_elf_discard_info): If .eh_frame changed, call
_bfd_elf_adjust_eh_frame_global_symbol for globals.
Diffstat (limited to 'bfd/elflink.c')
| -rw-r--r-- | bfd/elflink.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/bfd/elflink.c b/bfd/elflink.c index 59300b7cde..4af4b1cd3d 100644 --- a/bfd/elflink.c +++ b/bfd/elflink.c @@ -13807,6 +13807,7 @@ bfd_elf_discard_info (bfd *output_bfd, struct bfd_link_info *info) if (o != NULL) { asection *i; + int eh_changed = 0; for (i = o->map_head.s; i != NULL; i = i->map_head.s) { @@ -13824,10 +13825,17 @@ bfd_elf_discard_info (bfd *output_bfd, struct bfd_link_info *info) if (_bfd_elf_discard_section_eh_frame (abfd, info, i, bfd_elf_reloc_symbol_deleted_p, &cookie)) - changed = 1; + { + eh_changed = 1; + if (i->size != i->rawsize) + changed = 1; + } fini_reloc_cookie_for_section (&cookie, i); } + if (eh_changed) + elf_link_hash_traverse (elf_hash_table (info), + _bfd_elf_adjust_eh_frame_global_symbol, NULL); } for (abfd = info->input_bfds; abfd != NULL; abfd = abfd->link.next) |