diff options
Diffstat (limited to 'elf')
| -rw-r--r-- | elf/Versions | 3 | ||||
| -rw-r--r-- | elf/dl-iteratephdr.c | 61 | ||||
| -rw-r--r-- | elf/link.h | 22 |
3 files changed, 85 insertions, 1 deletions
diff --git a/elf/Versions b/elf/Versions index b72cedbcef..2506d100a6 100644 --- a/elf/Versions +++ b/elf/Versions @@ -14,6 +14,9 @@ libc { # functions used in other libraries _dl_sym; _dl_vsym; } + GLIBC_2.2.4 { + dl_iterate_phdr; + } } ld { diff --git a/elf/dl-iteratephdr.c b/elf/dl-iteratephdr.c new file mode 100644 index 0000000000..fa62dc760e --- /dev/null +++ b/elf/dl-iteratephdr.c @@ -0,0 +1,61 @@ +/* Get loaded objects program headers. + Copyright (C) 2001 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 Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library 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 <errno.h> +#include <ldsodefs.h> +#include <stddef.h> +#include <bits/libc-lock.h> + +__libc_lock_define (extern, _dl_load_lock) + +int +__dl_iterate_phdr (int (*callback) (struct dl_phdr_info *info, + size_t size, void *data), void *data) +{ + struct link_map *l; + struct dl_phdr_info info; + int ret = 0; + + /* Make sure we are alone. */ + __libc_lock_lock (_dl_load_lock); + + for (l = _dl_loaded; l != NULL; l = l->l_next) + { + /* Skip the dynamic linker. */ + if (l->l_phdr == NULL) + continue; + info.dlpi_addr = l->l_addr; + info.dlpi_name = l->l_name; + info.dlpi_phdr = l->l_phdr; + info.dlpi_phnum = l->l_phnum; + ret = callback (&info, sizeof (struct dl_phdr_info), data); + if (ret) + break; + } + + /* Release the lock. */ + __libc_lock_unlock (_dl_load_lock); + + return ret; +} + +#ifdef SHARED +weak_alias (__dl_iterate_phdr, dl_iterate_phdr); +#endif diff --git a/elf/link.h b/elf/link.h index 1aa0a3e597..f8e7f629d0 100644 --- a/elf/link.h +++ b/elf/link.h @@ -1,6 +1,6 @@ /* Data structure for communication from the run-time dynamic linker for loaded ELF shared objects. - Copyright (C) 1995-1999, 2000 Free Software Foundation, Inc. + Copyright (C) 1995-1999, 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 @@ -92,4 +92,24 @@ struct link_map struct link_map *l_next, *l_prev; /* Chain of loaded objects. */ }; +#ifdef __USE_GNU + +struct dl_phdr_info + { + ElfW(Addr) dlpi_addr; + const char *dlpi_name; + const ElfW(Phdr) *dlpi_phdr; + ElfW(Half) dlpi_phnum; + }; + +__BEGIN_DECLS + +extern int dl_iterate_phdr (int (*callback) (struct dl_phdr_info *info, + size_t size, void *data), + void *data) __THROW; + +__END_DECLS + +#endif + #endif /* link.h */ |