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/* Copyright (C) 1993, 1994, 1995 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <sysdep.h>
ENTRY (__waitpid)
/* The `waitpid' system call is distinguished from plain
`wait' by setting lots of bits in the processor flags. */
pushfl /* Push the flags word. */
popl %eax /* Pop it into the accumulator. */
orl $0x8c4, %eax /* Set lots of bits. */
pushl %eax /* Push the new flags word. */
popfl /* Pop it into the flags. */
DO_CALL (wait, 2)
movl 8(%esp), scratch /* Put status pointer in scratch register. */
testl scratch, scratch /* Is it non-nil? */
je null
movl r1, (scratch) /* Yes; store the status there. */
null: ret
weak_alias (__waitpid, waitpid)
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