diff options
Diffstat (limited to 'newlib/libc/sys/linux/dl/dl-sym.c')
| -rw-r--r-- | newlib/libc/sys/linux/dl/dl-sym.c | 158 |
1 files changed, 0 insertions, 158 deletions
diff --git a/newlib/libc/sys/linux/dl/dl-sym.c b/newlib/libc/sys/linux/dl/dl-sym.c deleted file mode 100644 index 85d084f7f..000000000 --- a/newlib/libc/sys/linux/dl/dl-sym.c +++ /dev/null @@ -1,158 +0,0 @@ -/* Look up a symbol in a shared object loaded by `dlopen'. - Copyright (C) 1999, 2000, 2001 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 - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <stddef.h> -#include <setjmp.h> -#include <libintl.h> - -#include <dlfcn.h> -#include <ldsodefs.h> -#include <dl-hash.h> - -void * -internal_function -_dl_sym (void *handle, const char *name, void *who) -{ - const ElfW(Sym) *ref = NULL; - lookup_t result; - ElfW(Addr) caller = (ElfW(Addr)) who; - struct link_map *match; - struct link_map *l; - - /* If the address is not recognized the call comes from the main - program (we hope). */ - match = _dl_loaded; - - /* Find the highest-addressed object that CALLER is not below. */ - for (l = _dl_loaded; l != NULL; l = l->l_next) - if (caller >= l->l_map_start && caller < l->l_map_end) - { - /* There must be exactly one DSO for the range of the virtual - memory. Otherwise something is really broken. */ - match = l; - break; - } - - if (handle == RTLD_DEFAULT) - /* Search the global scope as seen in the caller object. */ - result = _dl_lookup_symbol (name, match, &ref, match->l_scope, 0, 0); - else - { - if (handle != RTLD_NEXT) - { - /* Search the scope of the given object. */ - struct link_map *map = handle; - - result = _dl_lookup_symbol (name, match, &ref, map->l_local_scope, - 0, 1); - } - else - { - if (__builtin_expect (match == _dl_loaded, 0)) - { - if (! _dl_loaded - || caller < _dl_loaded->l_map_start - || caller >= _dl_loaded->l_map_end) - _dl_signal_error (0, NULL, NULL, N_("\ -RTLD_NEXT used in code not dynamically loaded")); - } - - l = match; - while (l->l_loader != NULL) - l = l->l_loader; - - result = _dl_lookup_symbol_skip (name, l, &ref, l->l_local_scope, - match); - } - } - - if (ref != NULL) - return DL_SYMBOL_ADDRESS (result, ref); - - return NULL; -} - -void * -internal_function -_dl_vsym (void *handle, const char *name, const char *version, void *who) -{ - const ElfW(Sym) *ref = NULL; - struct r_found_version vers; - lookup_t result; - ElfW(Addr) caller = (ElfW(Addr)) who; - struct link_map *match; - struct link_map *l; - - /* Compute hash value to the version string. */ - vers.name = version; - vers.hidden = 1; - vers.hash = _dl_elf_hash (version); - /* We don't have a specific file where the symbol can be found. */ - vers.filename = NULL; - - /* If the address is not recognized the call comes from the main - program (we hope). */ - match = _dl_loaded; - - /* Find the highest-addressed object that CALLER is not below. */ - for (l = _dl_loaded; l != NULL; l = l->l_next) - if (caller >= l->l_map_start && caller < l->l_map_end) - { - /* There must be exactly one DSO for the range of the virtual - memory. Otherwise something is really broken. */ - match = l; - break; - } - - if (handle == RTLD_DEFAULT) - /* Search the global scope. */ - result = _dl_lookup_versioned_symbol (name, match, &ref, match->l_scope, - &vers, 0, 0); - else if (handle == RTLD_NEXT) - { - if (__builtin_expect (match == _dl_loaded, 0)) - { - if (! _dl_loaded - || caller < _dl_loaded->l_map_start - || caller >= _dl_loaded->l_map_end) - _dl_signal_error (0, NULL, NULL, N_("\ -RTLD_NEXT used in code not dynamically loaded")); - } - - l = match; - while (l->l_loader != NULL) - l = l->l_loader; - - result = _dl_lookup_versioned_symbol_skip (name, l, &ref, - l->l_local_scope, - &vers, match); - } - else - { - /* Search the scope of the given object. */ - struct link_map *map = handle; - result = _dl_lookup_versioned_symbol (name, map, &ref, - map->l_local_scope, &vers, 0, 1); - } - - if (ref != NULL) - return DL_SYMBOL_ADDRESS (result, ref); - - return NULL; -} |