glibc/sysdeps/ia64/libc-tls.c

35 lines
1.3 KiB
C

/* Thread-local storage handling in the ELF dynamic linker. IA-64 version.
Copyright (C) 2003-2024 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 <csu/libc-tls.c>
_Static_assert (TLS_PRE_TCB_SIZE % __alignof (struct pthread) == 0,
"__thread_self and THREAD_SELF have same alignment");
/* On IA-64, as it lacks linker optimizations, __tls_get_addr can be
called even in statically linked binaries.
In this case module must be always 1 and PT_TLS segment
exist in the binary, otherwise it would not link. */
void *
__tls_get_addr (size_t m, size_t offset)
{
dtv_t *dtv = THREAD_DTV ();
return (char *) dtv[1].pointer.val + offset;
}