diff options
| author | Ulrich Drepper <drepper@redhat.com> | 1999-08-01 19:24:38 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 1999-08-01 19:24:38 +0000 |
| commit | 4f2793d41f1043cf04f6761b1da00d8741824087 (patch) | |
| tree | 4438801b2a8444e7c83b62c3bd64ae833dc63ee1 /elf/dl-sym.c | |
| parent | 7730a3b9d420136fc8a001d1ebd6c68cd0c005a3 (diff) | |
| download | glibc-4f2793d41f1043cf04f6761b1da00d8741824087.tar.gz | |
Update.
1999-08-01 Ulrich Drepper <drepper@cygnus.com>
* elf/dl-sym.c (_dl_sym): Always determine module of the caller to
pass it to _dl_lookup_symbol.
* elf/dl-error.c (_dl_signal_error): Optimize string generation a
bit. Reword message.
* dlfcn/dlerror.c: Make code thread-safe.
Diffstat (limited to 'elf/dl-sym.c')
| -rw-r--r-- | elf/dl-sym.c | 38 |
1 files changed, 24 insertions, 14 deletions
diff --git a/elf/dl-sym.c b/elf/dl-sym.c index 91ca1277df..80be9544cb 100644 --- a/elf/dl-sym.c +++ b/elf/dl-sym.c @@ -35,7 +35,7 @@ _dl_sym (void *handle, const char *name, void *who) if (handle == RTLD_DEFAULT) /* Search the global scope. */ loadbase = _dl_lookup_symbol (name, NULL, &ref, _dl_global_scope, 0); - else if (handle == RTLD_NEXT) + else { struct link_map *l, *match; ElfW(Addr) caller = (ElfW(Addr)) who; @@ -46,22 +46,32 @@ _dl_sym (void *handle, const char *name, void *who) if (caller >= l->l_addr && (!match || match->l_addr < l->l_addr)) match = l; - if (! match) - _dl_signal_error (0, NULL, _("\ + if (handle != RTLD_NEXT) + { + /* Search the scope of the given object. */ + struct link_map *map = handle; + + if (match == NULL) + /* If the address is not recognized the call comes from the + main program (we hope). */ + match = _dl_loaded; + + loadbase = _dl_lookup_symbol (name, match, &ref, map->l_local_scope, + 0); + } + else + { + if (! match) + _dl_signal_error (0, NULL, _("\ RTLD_NEXT used in code not dynamically loaded")); - l = match; - while (l->l_loader) - l = l->l_loader; + l = match; + while (l->l_loader) + l = l->l_loader; - loadbase = _dl_lookup_symbol_skip (name, l, &ref, l->l_local_scope, - match); - } - else - { - /* Search the scope of the given object. */ - struct link_map *map = handle; - loadbase = _dl_lookup_symbol (name, map, &ref, map->l_local_scope, 0); + loadbase = _dl_lookup_symbol_skip (name, l, &ref, l->l_local_scope, + match); + } } if (loadbase) |