1 /* Copyright (C) 1993,94,95,97,2002 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, write to the Free
16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
22 /* The `waitpid' system call is distinguished from plain
23 `wait' by setting lots of bits in the processor flags. */
24 pushfl /* Push the flags word. */
25 popl %eax /* Pop it into the accumulator. */
26 orl $0x8c4, %eax /* Set lots of bits. */
27 pushl %eax /* Push the new flags word. */
28 popfl /* Pop it into the flags. */
30 movl 8(%esp), scratch /* Put status pointer in scratch register. */
31 testl scratch, scratch /* Is it non-nil? */
33 movl r1, (scratch) /* Yes; store the status there. */
36 libc_hidden_def (__waitpid)
37 weak_alias (__waitpid, waitpid)