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| author | Alan Modra <amodra@gmail.com> | 2011-08-05 06:22:22 +0000 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2011-08-05 06:22:22 +0000 |
| commit | d969d15f50138890a02f8cc8d4266dee448ceff0 (patch) | |
| tree | daf60bac6d98d2513114488c547167894e6ba52f /bfd | |
| parent | 43e1669b2d187f4b2e4ecdf98a5aac8e9fb10bfd (diff) | |
| download | gdb-d969d15f50138890a02f8cc8d4266dee448ceff0.zip gdb-d969d15f50138890a02f8cc8d4266dee448ceff0.tar.gz gdb-d969d15f50138890a02f8cc8d4266dee448ceff0.tar.bz2 | |
bfd/
* elf64-ppc.c (maybe_strip_output): New function.
(ppc64_elf_size_stubs): Use it to strip .branch_lt and .eh_frame.
ld/testsuite/
* ld-powerpc/tlsexe.r: Update for stripped .branch_lt.
* ld-powerpc/tlsexetoc.r: Likewise.
* ld-powerpc/tlsso.r: Likewise.
* ld-powerpc/tlstocso.r: Likewise.
Diffstat (limited to 'bfd')
| -rw-r--r-- | bfd/ChangeLog | 5 | ||||
| -rw-r--r-- | bfd/elf64-ppc.c | 27 |
2 files changed, 28 insertions, 4 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 82defd9..3280ac9 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,5 +1,10 @@ 2011-08-05 Alan Modra <amodra@gmail.com> + * elf64-ppc.c (maybe_strip_output): New function. + (ppc64_elf_size_stubs): Use it to strip .branch_lt and .eh_frame. + +2011-08-05 Alan Modra <amodra@gmail.com> + PR ld/12762 * elflink.c (_bfd_elf_section_already_linked): Return matched status. Remove COFF comdat section handling. diff --git a/bfd/elf64-ppc.c b/bfd/elf64-ppc.c index d13447e..e942a7a 100644 --- a/bfd/elf64-ppc.c +++ b/bfd/elf64-ppc.c @@ -10871,6 +10871,26 @@ static const unsigned char glink_eh_frame_cie[] = DW_CFA_def_cfa, 1, 0 /* def_cfa: r1 offset 0. */ }; +/* Stripping output sections is normally done before dynamic section + symbols have been allocated. This function is called later, and + handles cases like htab->brlt which is mapped to its own output + section. */ + +static void +maybe_strip_output (struct bfd_link_info *info, asection *isec) +{ + if (isec->size == 0 + && isec->output_section->size == 0 + && !bfd_section_removed_from_list (info->output_bfd, + isec->output_section) + && elf_section_data (isec->output_section)->dynindx == 0) + { + isec->output_section->flags |= SEC_EXCLUDE; + bfd_section_list_remove (info->output_bfd, isec->output_section); + info->output_bfd->section_count--; + } +} + /* Determine and set the size of the stub section for a final link. The basic idea here is to examine all the relocations looking for @@ -11251,10 +11271,9 @@ ppc64_elf_size_stubs (struct bfd_link_info *info, bfd_signed_vma group_size, (*htab->layout_sections_again) (); } - /* It would be nice to strip htab->brlt from the output if the - section is empty, but it's too late. If we strip sections here, - the dynamic symbol table is corrupted since the section symbol - for the stripped section isn't written. */ + maybe_strip_output (info, htab->brlt); + if (htab->glink_eh_frame != NULL) + maybe_strip_output (info, htab->glink_eh_frame); return TRUE; } |