1 /* Variable initialization. MIPS version.
2 Copyright (C) 2001, 2002, 2003, 2005 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library. If not, see
17 <http://www.gnu.org/licenses/>. */
24 _dl_var_init (void *array[])
26 /* It has to match "variables" below. */
32 GLRO(dl_pagesize) = *((size_t *) array[DL_PAGESIZE]);
36 #include <bits/libc-lock.h>
38 __libc_lock_define_initialized_recursive (static, _dl_static_lock)
40 static void *variables[] =
46 _dl_unprotect_relro (struct link_map *l)
48 ElfW(Addr) start = ((l->l_addr + l->l_relro_addr)
49 & ~(GLRO(dl_pagesize) - 1));
50 ElfW(Addr) end = ((l->l_addr + l->l_relro_addr + l->l_relro_size)
51 & ~(GLRO(dl_pagesize) - 1));
54 __mprotect ((void *) start, end - start, PROT_READ | PROT_WRITE);
58 _dl_static_init (struct link_map *l)
60 struct link_map *rtld_map = l;
61 struct r_scope_elem **scope;
62 const ElfW(Sym) *ref = NULL;
67 __libc_lock_lock_recursive (_dl_static_lock);
69 loadbase = _dl_lookup_symbol_x ("_dl_var_init", l, &ref, l->l_local_scope,
72 for (scope = l->l_local_scope; *scope != NULL; scope++)
73 for (i = 0; i < (*scope)->r_nlist; i++)
74 if ((*scope)->r_list[i] == loadbase)
76 rtld_map = (*scope)->r_list[i];
82 f = (void (*) (void *[])) DL_SYMBOL_ADDRESS (loadbase, ref);
83 _dl_unprotect_relro (rtld_map);
85 _dl_protect_relro (rtld_map);
88 __libc_lock_unlock_recursive (_dl_static_lock);