diff options
| author | Alan Modra <amodra@gmail.com> | 2004-08-17 05:38:28 +0000 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2004-08-17 05:38:28 +0000 |
| commit | 35b0ce5903637508ed25ab44ca5db3d1850b99ab (patch) | |
| tree | a2c56f7af6ab4ac68170d26a1075957304864d8d /bfd/elf64-ppc.c | |
| parent | 816881401eed1e79939dbbbd16ad5ffb5f6332e7 (diff) | |
| download | gdb-35b0ce5903637508ed25ab44ca5db3d1850b99ab.zip gdb-35b0ce5903637508ed25ab44ca5db3d1850b99ab.tar.gz gdb-35b0ce5903637508ed25ab44ca5db3d1850b99ab.tar.bz2 | |
* elf64-ppc.c (add_symbol_adjust): Correct mismatched function
symbol visibility.
(ppc64_elf_check_directives): Check that we have the right hash
table before proceeding.
Diffstat (limited to 'bfd/elf64-ppc.c')
| -rw-r--r-- | bfd/elf64-ppc.c | 30 |
1 files changed, 24 insertions, 6 deletions
diff --git a/bfd/elf64-ppc.c b/bfd/elf64-ppc.c index ccb8089..9210ad1 100644 --- a/bfd/elf64-ppc.c +++ b/bfd/elf64-ppc.c @@ -3569,7 +3569,10 @@ ppc64_elf_archive_symbol_lookup (bfd *abfd, new ABI object defines "bar". Well, at least, undefined dot symbols are made weak. This stops later archive searches from including an object if we already have a function descriptor definition. It also - prevents the linker complaining about undefined symbols. */ + prevents the linker complaining about undefined symbols. + We also check and correct mismatched symbol visibility here. The + most restrictive visibility of the function descriptor and the + function entry symbol is used. */ static bfd_boolean add_symbol_adjust (struct elf_link_hash_entry *h, void *inf) @@ -3585,8 +3588,7 @@ add_symbol_adjust (struct elf_link_hash_entry *h, void *inf) if (h->root.type == bfd_link_hash_warning) h = (struct elf_link_hash_entry *) h->root.u.i.link; - if (h->root.type != bfd_link_hash_undefined - || h->root.root.string[0] != '.') + if (h->root.root.string[0] != '.') return TRUE; info = inf; @@ -3595,9 +3597,19 @@ add_symbol_adjust (struct elf_link_hash_entry *h, void *inf) fdh = get_fdh (eh, htab); if (fdh != NULL) { - eh->elf.root.type = bfd_link_hash_undefweak; - eh->was_undefined = 1; - htab->twiddled_syms = 1; + unsigned entry_vis = ELF_ST_VISIBILITY (eh->elf.other) - 1; + unsigned descr_vis = ELF_ST_VISIBILITY (fdh->elf.other) - 1; + if (entry_vis < descr_vis) + fdh->elf.other += entry_vis - descr_vis; + else if (entry_vis > descr_vis) + eh->elf.other += descr_vis - entry_vis; + + if (eh->elf.root.type == bfd_link_hash_undefined) + { + eh->elf.root.type = bfd_link_hash_undefweak; + eh->was_undefined = 1; + htab->twiddled_syms = 1; + } } return TRUE; @@ -3608,8 +3620,14 @@ ppc64_elf_check_directives (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_link_info *info) { struct ppc_link_hash_table *htab; + extern const bfd_target bfd_elf64_powerpc_vec; + extern const bfd_target bfd_elf64_powerpcle_vec; htab = ppc_hash_table (info); + if (htab->elf.root.creator != &bfd_elf64_powerpc_vec + && htab->elf.root.creator != &bfd_elf64_powerpcle_vec) + return TRUE; + elf_link_hash_traverse (&htab->elf, add_symbol_adjust, info); /* We need to fix the undefs list for any syms we have twiddled to |