1 /* Copyright (C) 2004-2014 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library. If not, see
16 <http://www.gnu.org/licenses/>. */
19 #include <tcb-offsets.h>
21 #undef PSEUDO_PREPARE_ARGS
22 #define PSEUDO_PREPARE_ARGS \
23 /* Load the current cached pid value across the vfork. */ \
25 ldl a2, PID_OFFSET(v0); \
27 /* If the cached value is initialized (nonzero), then write \
28 back its negation, or INT_MIN, to indicate that the pid \
29 value is uninitialized in the child, and in the window \
30 between here and the point at which we restore the value. */ \
34 stl t0, PID_OFFSET(v0);
36 PSEUDO (__vfork, vfork, 0)
38 /* If we're back in the parent, restore the saved pid. */
40 stl a2, PID_OFFSET(a1)
44 libc_hidden_def (__vfork)
45 weak_alias (__vfork, vfork)