/* Invoke the early initialization function in libc.so. Copyright (C) 2020-2023 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 <https://www.gnu.org/licenses/>. */ #include <assert.h> #include <ldsodefs.h> #include <libc-early-init.h> #include <link.h> #include <stddef.h> void _dl_call_libc_early_init (struct link_map *libc_map, _Bool initial) { /* There is nothing to do if we did not actually load libc.so. */ if (libc_map == NULL) return; const ElfW(Sym) *sym = _dl_lookup_direct (libc_map, "__libc_early_init", 0x069682ac, /* dl_new_hash output. */ "GLIBC_PRIVATE", 0x0963cf85); /* _dl_elf_hash output. */ assert (sym != NULL); __typeof (__libc_early_init) *early_init = DL_SYMBOL_ADDRESS (libc_map, sym); early_init (initial); }