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glibc/elf/libc_early_init.c
Wilco Dijkstra 919bf1489a malloc: Fix malloc init order
__ptmalloc_init was called too early in __libc_early_init: it uses
__libc_initial which is not set yet.  Fix this by moving initialization
to the end of __libc_early_init.

Reviewed-by: Florian Weimer <fweimer@redhat.com>
2025-05-27 15:25:30 +00:00

57 lines
1.6 KiB
C

/* Early initialization of libc.so, libc.so side.
Copyright (C) 2020-2025 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 <ctype.h>
#include <elision-conf.h>
#include <libc-early-init.h>
#include <libc-internal.h>
#include <lowlevellock.h>
#include <pthread_early_init.h>
#include <sys/single_threaded.h>
#include <getrandom-internal.h>
#include <malloc/malloc-internal.h>
#ifdef SHARED
_Bool __libc_initial;
#endif
void
__libc_early_init (_Bool initial)
{
/* Initialize ctype data. */
__ctype_init ();
/* Only the outer namespace is marked as single-threaded. */
__libc_single_threaded = initial;
#ifdef SHARED
__libc_single_threaded_internal = __libc_initial = initial;
#endif
__pthread_early_init ();
__getrandom_early_init (initial);
#if ENABLE_ELISION_SUPPORT
__lll_elision_init ();
#endif
/* Initialize system malloc (needs __libc_initial to be set). */
call_function_static_weak (__ptmalloc_init);
}