glibc/sysdeps/unix/sysv/sco3.2.4/waitpid.S

37 lines
1.5 KiB
ArmAsm
Raw Normal View History

/* Copyright (C) 1993, 1994, 1995, 1997 Free Software Foundation, Inc.
This file is part of the GNU C Library.
1993-05-03 23:57:05 +00:00
The GNU C Library is free software; you can redistribute it and/or
2001-07-06 04:56:23 +00:00
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.
1993-05-03 23:57:05 +00:00
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
2001-07-06 04:56:23 +00:00
Lesser General Public License for more details.
1993-05-03 23:57:05 +00:00
2001-07-06 04:56:23 +00:00
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
1993-05-03 23:57:05 +00:00
#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)
1994-03-01 16:44:24 +00:00
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)