1 /* Copyright (C) 2005-2014 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public License as
7 published by the Free Software Foundation; either version 2.1 of the
8 License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
19 #include <tcb-offsets.h>
21 /* Save the PID value. */
24 sub x2, x2, #PTHREAD_SIZEOF; \
25 ldr w3, [x2, #PTHREAD_PID_OFFSET]; \
27 mov w0, #0x80000000; \
28 csneg w0, w0, w3, eq; \
29 str w0, [x2, #PTHREAD_PID_OFFSET]
31 /* Restore the old PID value in the parent. */
33 cbz x0, 1f; /* If we are the parent... */ \
34 str w3, [x2, #PTHREAD_PID_OFFSET]; /* restore the saved PID. */ \