glibc/sysdeps/generic/dl-call_tls_init_tp.h
Florian Weimer 1f34a23288 elf: Introduce <dl-call_tls_init_tp.h> and call_tls_init_tp (bug 29249)
This makes it more likely that the compiler can compute the strlen
argument in _startup_fatal at compile time, which is required to
avoid a dependency on strlen this early during process startup.

Reviewed-by: Szabolcs Nagy <szabolcs.nagy@arm.com>
2022-11-03 17:28:03 +01:00

35 lines
1.1 KiB
C

/* Invoke TLS_INIT_TP and __tls_init_tp with error handling.
Copyright (C) 2022 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 <startup.h>
#include <tls.h>
static inline void
_startup_fatal_tls_error (void)
{
_startup_fatal ("Fatal glibc error: Cannot allocate TLS block\n");
}
static inline void
call_tls_init_tp (void *addr)
{
if (!TLS_INIT_TP (addr))
_startup_fatal_tls_error ();
__tls_init_tp ();
}