123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384 |
- /* Get loaded objects program headers.
- Copyright (C) 2001,2002,2003,2004,2006,2007 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Jakub Jelinek <jakub@redhat.com>, 2001.
- 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; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA.
- */
- #include <link.h>
- #include <ldso.h>
- /* we want this in libc but nowhere else */
- #ifdef __USE_GNU
- extern __typeof(dl_iterate_phdr) __dl_iterate_phdr;
- hidden_proto(__dl_iterate_phdr)
- int
- __dl_iterate_phdr (int (*callback) (struct dl_phdr_info *info, size_t size, void *data), void *data)
- {
- struct elf_resolve *l;
- struct dl_phdr_info info;
- int ret = 0;
- for (l = _dl_loaded_modules; l != NULL; l = l->next) {
- info.dlpi_addr = l->loadaddr;
- info.dlpi_name = l->libname;
- info.dlpi_phdr = l->ppnt;
- info.dlpi_phnum = l->n_phent;
- ret = callback (&info, sizeof (struct dl_phdr_info), data);
- if (ret)
- break;
- }
- return ret;
- }
- hidden_def (__dl_iterate_phdr)
- # ifdef SHARED
- weak_alias(__dl_iterate_phdr, dl_iterate_phdr)
- # else
- /* dl-support.c defines these and initializes them early on. */
- extern ElfW(Phdr) *_dl_phdr;
- extern size_t _dl_phnum;
- int
- dl_iterate_phdr (int (*callback) (struct dl_phdr_info *info,
- size_t size, void *data), void *data)
- {
- if (_dl_phnum != 0)
- {
- /* This entry describes this statically-linked program itself. */
- struct dl_phdr_info info;
- int ret;
- info.dlpi_addr = 0;
- info.dlpi_name = "";
- info.dlpi_phdr = _dl_phdr;
- info.dlpi_phnum = _dl_phnum;
- ret = (*callback) (&info, sizeof (struct dl_phdr_info), data);
- if (ret)
- return ret;
- }
- /* Then invoke callback on loaded modules, if any */
- return __dl_iterate_phdr (callback, data);
- }
- # endif
- #endif
|