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| author | Alan Modra <amodra@gmail.com> | 2014-08-22 09:07:35 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2014-08-22 10:09:09 +0930 |
| commit | da44f4e5464f82dec79eb5885961c6466dd3bf6a (patch) | |
| tree | f525a8df07964e6edbbdb3316e1f6f9efa073cde /ld/ChangeLog | |
| parent | 7f85237141c02e3989311cbaca19038c7c3d5b2c (diff) | |
| download | gdb-da44f4e5464f82dec79eb5885961c6466dd3bf6a.zip gdb-da44f4e5464f82dec79eb5885961c6466dd3bf6a.tar.gz gdb-da44f4e5464f82dec79eb5885961c6466dd3bf6a.tar.bz2 | |
Index PowerPC64 linker generated .eh_frame in .eh_frame_hdr
I noticed recently that .eh_frame FDEs generated by the linker for
call stubs and .glink weren't being indexed in .eh_frame_hdr, due to
bfd_elf_discard_info being run before the linker generated .eh_frame
sections were available for parsing. This patch moves code around in
elf64-ppc.c and ppc64elf.em to avoid that problem.
Another problem fixed here is that --gc-sections parses .eh_frame
early, and the existing machinery allows only one go at parsing the
.eh_frame sections. That resulted in the linker generated .eh_frame
CIEs not being merged and no .eh_frame_hdr index entries for those
FDEs. It turns out that all the info from parsing .eh_frame is
attached to the section, so order of parsing isn't important, and
after parsing sec_info_type being set will prevent a section being
parsed again. At least, when parsing doesn't hit an error. So there
isn't really any need for "parsed_eh_frame". "merge_cies" is also
redundant, which means _bfd_elf_{begin,end}_eh_frame_parsing can also
disappear.
bfd/
* elf-bfd.h (struct eh_frame_hdr_info): Delete merge_cies and
parsed_eh_frames.
(_bfd_elf_begin_eh_frame_parsing): Delete.
(_bfd_elf_end_eh_frame_parsing): Delete.
* elf-eh-frame.c (_bfd_elf_begin_eh_frame_parsing): Delete.
(_bfd_elf_end_eh_frame_parsing): Delete.
(_bfd_elf_parse_eh_frame): Don't test parsed_eh_frame. Test
!info->relocatable in place of merge_cies.
* elflink.c (bfd_elf_gc_sections, bfd_elf_discard_info): Adjust.
* elf64-ppc.c (glink_eh_frame_cie): Pad to multiple of 8.
(ppc64_elf_size_stubs): Likewise pad stub FDE.
(ppc64_elf_build_stubs): Move code setting glink .eh_frame to..
(ppc64_elf_size_stubs): ..here and..
(ppc64_elf_finish_dynamic_sections): ..here.
ld/
* emultempl/ppc64elf.em (gld${EMULATION_NAME}_after_allocation): Call
bfd_elf_discard_info after generating glink .eh_frame. Delete
redundant test on ppc64_elf_setup_section_lists status.
Diffstat (limited to 'ld/ChangeLog')
| -rw-r--r-- | ld/ChangeLog | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/ld/ChangeLog b/ld/ChangeLog index 54c2755..d065c3a 100644 --- a/ld/ChangeLog +++ b/ld/ChangeLog @@ -1,3 +1,9 @@ +2014-08-22 Alan Modra <amodra@gmail.com> + + * emultempl/ppc64elf.em (gld${EMULATION_NAME}_after_allocation): Call + bfd_elf_discard_info after generating glink .eh_frame. Delete + redundant test on ppc64_elf_setup_section_lists status. + 2014-08-20 Maciej W. Rozycki <macro@codesourcery.com> * emultempl/armelf.em (OPTION_STUBGROUP_SIZE): Fix formatting. |