diff options
Diffstat (limited to 'elf/dlvsym.c')
| -rw-r--r-- | elf/dlvsym.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/elf/dlvsym.c b/elf/dlvsym.c index 5063b3b..922a6ee 100644 --- a/elf/dlvsym.c +++ b/elf/dlvsym.c @@ -1,4 +1,4 @@ -/* Look up a symbol in a shared object loaded by `dlopen'. +/* Look up a versioned symbol in a shared object loaded by `dlopen'. Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc. This file is part of the GNU C Library. @@ -22,12 +22,14 @@ #include <dlfcn.h> #include <setjmp.h> +#include <dl-hash.h> void * -__dlvsym (void *handle, const char *name, const char *version) +__dlvsym (void *handle, const char *name, const char *version_str) { ElfW(Addr) caller = (ElfW(Addr)) __builtin_return_address (0); ElfW(Addr) loadbase; + struct r_found_version version; const ElfW(Sym) *ref = NULL; void doit (void) { @@ -35,7 +37,7 @@ __dlvsym (void *handle, const char *name, const char *version) /* Search the global scope. */ loadbase = _dl_lookup_versioned_symbol (name, &ref, &(_dl_global_scope ?: _dl_default_scope)[2], NULL, - version, 0); + &version, 0); else if (handle == RTLD_NEXT) { struct link_map *l, *match; @@ -55,7 +57,7 @@ RTLD_NEXT used in code not dynamically loaded")); l = l->l_loader; loadbase = _dl_lookup_versioned_symbol_skip - (name, &ref, &_dl_loaded, NULL, version, l, 0); + (name, &ref, &_dl_loaded, NULL, &version, l, 0); } else { @@ -63,10 +65,16 @@ RTLD_NEXT used in code not dynamically loaded")); struct link_map *map = handle; struct link_map *mapscope[2] = { map, NULL }; loadbase = _dl_lookup_versioned_symbol - (name, &ref, mapscope, map->l_name, version, 0); + (name, &ref, mapscope, map->l_name, &version, 0); } } + /* Compute hash value to the version string. */ + version.name = version_str; + version.hash = _dl_elf_hash (version_str); + /* We don't have a specific file where the symbol can be found. */ + version.filename = NULL; + return _dlerror_run (doit) ? NULL : (void *) (loadbase + ref->st_value); } weak_alias (__dlvsym, dlvsym) |