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| author | Alan Modra <amodra@gmail.com> | 2009-08-26 01:21:56 +0000 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2009-08-26 01:21:56 +0000 |
| commit | 78a0329753c9a5597fbb269122ed394e421b1d0e (patch) | |
| tree | bd962a5ca91ea277f7f6276979abc63dea93cc0f /bfd/linker.c | |
| parent | 27b0c844fe1cd9f55e85736264b985649df5731a (diff) | |
| download | gdb-78a0329753c9a5597fbb269122ed394e421b1d0e.zip gdb-78a0329753c9a5597fbb269122ed394e421b1d0e.tar.gz gdb-78a0329753c9a5597fbb269122ed394e421b1d0e.tar.bz2 | |
PR ld/10515
* linker.c (bfd_find_version_for_sym): Override a "*" match by any
other wildcard match. Warn on multiple wildcard matches.
Diffstat (limited to 'bfd/linker.c')
| -rw-r--r-- | bfd/linker.c | 39 |
1 files changed, 33 insertions, 6 deletions
diff --git a/bfd/linker.c b/bfd/linker.c index 1c22beb..8fe64e6 100644 --- a/bfd/linker.c +++ b/bfd/linker.c @@ -3271,14 +3271,18 @@ DESCRIPTION struct bfd_elf_version_tree * bfd_find_version_for_sym (struct bfd_elf_version_tree *verdefs, - const char *sym_name, - bfd_boolean *hide) + const char *sym_name, + bfd_boolean *hide) { struct bfd_elf_version_tree *t; struct bfd_elf_version_tree *local_ver, *global_ver, *exist_ver; + struct bfd_elf_version_tree *star_local_ver, *star_global_ver; + unsigned int match_count = 0; local_ver = NULL; global_ver = NULL; + star_local_ver = NULL; + star_global_ver = NULL; exist_ver = NULL; for (t = verdefs; t != NULL; t = t->next) { @@ -3288,14 +3292,21 @@ bfd_find_version_for_sym (struct bfd_elf_version_tree *verdefs, while ((d = (*t->match) (&t->globals, d, sym_name)) != NULL) { - global_ver = t; + ++match_count; + if (d->literal || strcmp (d->pattern, "*") != 0) + global_ver = t; + else + star_global_ver = t; if (d->symver) exist_ver = t; d->script = 1; /* If the match is a wildcard pattern, keep looking for a more explicit, perhaps even local, match. */ if (d->literal) - break; + { + match_count = 0; + break; + } } if (d != NULL) @@ -3308,13 +3319,19 @@ bfd_find_version_for_sym (struct bfd_elf_version_tree *verdefs, while ((d = (*t->match) (&t->locals, d, sym_name)) != NULL) { - local_ver = t; + ++match_count; + if (d->literal || strcmp (d->pattern, "*") != 0) + local_ver = t; + else + star_local_ver = t; /* If the match is a wildcard pattern, keep looking for a more explicit, perhaps even global, match. */ if (d->literal) { /* An exact match overrides a global wildcard. */ global_ver = NULL; + star_global_ver = NULL; + match_count = 0; break; } } @@ -3324,6 +3341,14 @@ bfd_find_version_for_sym (struct bfd_elf_version_tree *verdefs, } } + if (match_count > 1) + (*_bfd_error_handler) + (_("warning: multiple wildcard version script matches for %s\n"), + sym_name); + + if (global_ver == NULL && local_ver == NULL) + global_ver = star_global_ver; + if (global_ver != NULL) { /* If we already have a versioned symbol that matches the @@ -3334,6 +3359,9 @@ bfd_find_version_for_sym (struct bfd_elf_version_tree *verdefs, return global_ver; } + if (local_ver == NULL) + local_ver = star_local_ver; + if (local_ver != NULL) { *hide = TRUE; @@ -3342,4 +3370,3 @@ bfd_find_version_for_sym (struct bfd_elf_version_tree *verdefs, return NULL; } - |