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2003-02-07 Jakub Jelinek <jakub@redhat.com> * tst-popen2.c: New test. * Makefile (tests): Add tst-popen2. * sysdeps/unix/sysv/linux/alpha/vfork.S (__vfork): Branch to __fork whenever libpthread.so is loaded. * sysdeps/unix/sysv/linux/i386/vfork.S (__vfork): Likewise. * sysdeps/unix/sysv/linux/ia64/vfork.S (__vfork): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/vfork.S (__vfork): Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S (__vfork): Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S (__vfork): Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S (__vfork): Likewise. * sysdeps/unix/sysv/linux/x86_64/vfork.S (__vfork): Likewise.
55 lines
1.7 KiB
ArmAsm
55 lines
1.7 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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#ifdef SHARED
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larl %r1,__libc_pthread_functions
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lg %r1,0(%r1)
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#else
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.weak __pthread_fork
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larl %r1,__pthread_fork
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#endif
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ltgr %r1,%r1
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jgne HIDDEN_JUMPTARGET(__fork)
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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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lghi %r4,-4095
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clgr %r2,%r4
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jgnl SYSCALL_ERROR_LABEL
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/* Normal return. */
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br %r14
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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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