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70 lines
1.8 KiB
ArmAsm
70 lines
1.8 KiB
ArmAsm
/* Copyright (C) 2003 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>
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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 Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the 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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <sysdep-cancel.h>
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#define _ERRNO_H 1
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#include <bits/errno.h>
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/* Clone the calling process, but without copying the whole address space.
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The calling process is suspended until the new process exits or is
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replaced by a call to `execve'. Return -1 for errors, 0 to the new process,
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and the process ID of the new process to the old process. */
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ENTRY (__vfork)
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basr %r1,0
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0:
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#ifdef SHARED
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al %r1,4f-0b(%r1)
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l %r1,0(%r1)
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ltr %r1,%r1
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#else
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icm %r1,15,4f-0b(%r1)
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#endif
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jne 1f
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/* Do vfork system call. */
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svc SYS_ify (vfork)
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/* Check for error. */
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lhi %r4,-4095
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clr %r2,%r4
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jnl SYSCALL_ERROR_LABEL
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/* Normal return. */
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br %r14
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1:
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basr %r1,0
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2:
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al %r1,3f-2b(%r1)
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br %r1
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3:
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.long HIDDEN_JUMPTARGET(__fork)-2b
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4:
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#ifdef SHARED
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.long __libc_pthread_functions-0b
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#else
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.weak pthread_create
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.long pthread_create
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#endif
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PSEUDO_END(__vfork)
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libc_hidden_def (__vfork)
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weak_alias (__vfork, vfork)
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