mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-26 12:41:05 +00:00
688903eb3e
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
53 lines
1.8 KiB
C
53 lines
1.8 KiB
C
/* Support for relocating static PIE.
|
|
Copyright (C) 2017-2018 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, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#if ENABLE_STATIC_PIE
|
|
#include <unistd.h>
|
|
#include <ldsodefs.h>
|
|
#include "dynamic-link.h"
|
|
|
|
/* Relocate static executable with PIE. */
|
|
|
|
void
|
|
_dl_relocate_static_pie (void)
|
|
{
|
|
struct link_map *main_map = _dl_get_dl_main_map ();
|
|
|
|
# define STATIC_PIE_BOOTSTRAP
|
|
# define BOOTSTRAP_MAP (main_map)
|
|
# define RESOLVE_MAP(sym, version, flags) BOOTSTRAP_MAP
|
|
# include "dynamic-link.h"
|
|
|
|
/* Figure out the run-time load address of static PIE. */
|
|
main_map->l_addr = elf_machine_load_address ();
|
|
|
|
/* Read our own dynamic section and fill in the info array. */
|
|
main_map->l_ld = ((void *) main_map->l_addr + elf_machine_dynamic ());
|
|
elf_get_dynamic_info (main_map, NULL);
|
|
|
|
# ifdef ELF_MACHINE_BEFORE_RTLD_RELOC
|
|
ELF_MACHINE_BEFORE_RTLD_RELOC (main_map->l_info);
|
|
# endif
|
|
|
|
/* Relocate ourselves so we can do normal function calls and
|
|
data access using the global offset table. */
|
|
ELF_DYNAMIC_RELOCATE (main_map, 0, 0, 0);
|
|
main_map->l_relocated = 1;
|
|
}
|
|
#endif
|