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| author | Alan Modra <amodra@gmail.com> | 2014-11-27 15:16:49 +1030 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2014-11-30 12:11:03 +1030 |
| commit | 7b20f09964ba4275768350a24fca109527a19425 (patch) | |
| tree | 15e3d66f80c57aaaebb1676dc7518f6f29c54873 | |
| parent | b6a8f012d1813271c74cbc49545a27a2e8781fc0 (diff) | |
| download | gdb-7b20f09964ba4275768350a24fca109527a19425.zip gdb-7b20f09964ba4275768350a24fca109527a19425.tar.gz gdb-7b20f09964ba4275768350a24fca109527a19425.tar.bz2 | |
Don't output symbol version definitions for non-DT_NEEDED libs
PR 16452, 16457
* elflink.c (_bfd_elf_link_find_version_dependencies): Exclude
symbols from libraries that won't be listed in DT_NEEDED.
(elf_link_output_extsym): Don't output verdefs for such symbols.
| -rw-r--r-- | bfd/ChangeLog | 7 | ||||
| -rw-r--r-- | bfd/elflink.c | 8 |
2 files changed, 13 insertions, 2 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 8a52ebe..8bcbc11 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,10 @@ +2014-11-30 Alan Modra <amodra@gmail.com> + + PR 16452, 16457 + * elflink.c (_bfd_elf_link_find_version_dependencies): Exclude + symbols from libraries that won't be listed in DT_NEEDED. + (elf_link_output_extsym): Don't output verdefs for such symbols. + 2014-11-28 Alan Modra <amodra@gmail.com> * elf.c (_bfd_elf_slurp_version_tables): Exit loops when vn_next/ diff --git a/bfd/elflink.c b/bfd/elflink.c index c8068c0..c964a98 100644 --- a/bfd/elflink.c +++ b/bfd/elflink.c @@ -1832,7 +1832,9 @@ _bfd_elf_link_find_version_dependencies (struct elf_link_hash_entry *h, if (!h->def_dynamic || h->def_regular || h->dynindx == -1 - || h->verinfo.verdef == NULL) + || h->verinfo.verdef == NULL + || (elf_dyn_lib_class (h->verinfo.verdef->vd_bfd) + & (DYN_AS_NEEDED | DYN_DT_NEEDED | DYN_NO_NEEDED))) return TRUE; /* See if we already know about this version. */ @@ -9050,7 +9052,9 @@ elf_link_output_extsym (struct bfd_hash_entry *bh, void *data) if (!h->def_regular) { - if (h->verinfo.verdef == NULL) + if (h->verinfo.verdef == NULL + || (elf_dyn_lib_class (h->verinfo.verdef->vd_bfd) + & (DYN_AS_NEEDED | DYN_DT_NEEDED | DYN_NO_NEEDED))) iversym.vs_vers = 0; else iversym.vs_vers = h->verinfo.verdef->vd_exp_refno + 1; |