diff options
Diffstat (limited to 'elf')
| -rw-r--r-- | elf/dl-error.c | 11 | ||||
| -rw-r--r-- | elf/dl-sym.c | 38 |
2 files changed, 30 insertions, 19 deletions
diff --git a/elf/dl-error.c b/elf/dl-error.c index e802c27763..eda2725c5f 100644 --- a/elf/dl-error.c +++ b/elf/dl-error.c @@ -1,5 +1,5 @@ /* Error handling for runtime dynamic linker. - Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc. + Copyright (C) 1995, 1996, 1997, 1998, 1999 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -75,12 +75,13 @@ _dl_signal_error (int errcode, lcatch->errstring = malloc (objname_len + errstring_len); if (lcatch->errstring != NULL) { + char *cp = lcatch->errstring; if (objname_len > 0) { - memcpy (lcatch->errstring, objname, objname_len - 2); - memcpy (lcatch->errstring + objname_len - 2, ": ", 2); + cp = __mempcpy (cp, objname, objname_len - 2); + cp = __mempcpy (cp, ": ", 2); } - memcpy (lcatch->errstring + objname_len, errstring, errstring_len); + memcpy (cp, errstring, errstring_len); } longjmp (lcatch->env, errcode ?: -1); } @@ -89,7 +90,7 @@ _dl_signal_error (int errcode, /* Lossage while resolving the program's own symbols is always fatal. */ char buffer[1024]; _dl_sysdep_fatal (_dl_argv[0] ?: "<program name unknown>", - ": error in loading shared libraries: ", + ": error while loading shared libraries: ", objname ?: "", objname && *objname ? ": " : "", errstring, errcode ? ": " : "", (errcode 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) |