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| author | H.J. Lu <hjl.tools@gmail.com> | 2011-10-08 16:51:11 +0000 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2011-10-08 16:51:11 +0000 |
| commit | 3e0882af52d7a4b40de87c0be36f1b5bc84ddadb (patch) | |
| tree | 8356aa5ce3049354ee8dfb631f7f4b98d8591ec2 /bfd/elflink.c | |
| parent | c3df8c14822028ab319894b4c02c519073b62dba (diff) | |
| download | gdb-3e0882af52d7a4b40de87c0be36f1b5bc84ddadb.zip gdb-3e0882af52d7a4b40de87c0be36f1b5bc84ddadb.tar.gz gdb-3e0882af52d7a4b40de87c0be36f1b5bc84ddadb.tar.bz2 | |
Preserve the maximum alignment/size for common symbols.
bfd/
2011-10-08 H.J. Lu <hongjiu.lu@intel.com>
PR ld/13250
* elflink.c (elf_link_add_object_symbols): Preserve the maximum
alignment and size for common symbols.
ld/testsuite/
2011-10-08 H.J. Lu <hongjiu.lu@intel.com>
PR ld/13250
* ld-elf/shared.exp (build_tests): Add tests for PR ld/13250.
(run_tests): Likewise.
* ld-elf/pr13250-1.c: New.
* ld-elf/pr13250-2.c: Likewise.
* ld-elf/pr13250-3.c: Likewise.
Diffstat (limited to 'bfd/elflink.c')
| -rw-r--r-- | bfd/elflink.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/bfd/elflink.c b/bfd/elflink.c index 358ada8c..18aefdb 100644 --- a/bfd/elflink.c +++ b/bfd/elflink.c @@ -4515,6 +4515,8 @@ error_free_dyn: { struct bfd_hash_entry *p; struct elf_link_hash_entry *h; + bfd_size_type size; + unsigned int alignment_power; for (p = htab->root.table.table[i]; p != NULL; p = p->next) { @@ -4524,6 +4526,20 @@ error_free_dyn: if (h->dynindx >= old_dynsymcount) _bfd_elf_strtab_delref (htab->dynstr, h->dynstr_index); + /* Preserve the maximum alignment and size for common + symbols even if this dynamic lib isn't on DT_NEEDED + since it can still be loaded at the run-time by another + dynamic lib. */ + if (h->root.type == bfd_link_hash_common) + { + size = h->root.u.c.size; + alignment_power = h->root.u.c.p->alignment_power; + } + else + { + size = 0; + alignment_power = 0; + } memcpy (p, old_ent, htab->root.table.entsize); old_ent = (char *) old_ent + htab->root.table.entsize; h = (struct elf_link_hash_entry *) p; @@ -4532,6 +4548,13 @@ error_free_dyn: memcpy (h->root.u.i.link, old_ent, htab->root.table.entsize); old_ent = (char *) old_ent + htab->root.table.entsize; } + else if (h->root.type == bfd_link_hash_common) + { + if (size > h->root.u.c.size) + h->root.u.c.size = size; + if (alignment_power > h->root.u.c.p->alignment_power) + h->root.u.c.p->alignment_power = alignment_power; + } } } |