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/* Invoke the early initialization function in libc.so.
Copyright (C) 2020 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);
}
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