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37 lines
1.4 KiB
ArmAsm
37 lines
1.4 KiB
ArmAsm
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/* Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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#include <sysdep.h>
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ENTRY (__waitpid)
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/* The `waitpid' system call is distinguished from plain
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`wait' by setting lots of bits in the processor flags. */
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pushfl /* Push the flags word. */
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popl %eax /* Pop it into the accumulator. */
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orl $0x8c4, %eax /* Set lots of bits. */
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pushl %eax /* Push the new flags word. */
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popfl /* Pop it into the flags. */
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DO_CALL (wait, 2)
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movl 8(%esp), scratch /* Put status pointer in scratch register. */
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testl scratch, scratch /* Is it non-nil? */
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je null
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movl r1, (scratch) /* Yes; store the status there. */
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null: ret
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weak_alias (__waitpid, waitpid)
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