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* include/unistd.h: Add libc_hidden_proto for __fork and __vfork. * sysdeps/generic/fork.c: Add libc_hidden_def for __fork. * sysdeps/mach/hurd/fork.c: Likewise. * sysdeps/unix/sysv/aix/fork.c: Likewise. * sysdeps/unix/fork.S: Add __GI___fork alias. * sysdeps/unix/arm/fork.S: Likewise. * sysdeps/unix/bsd/osf/alpha/fork.S: Likewise. * sysdeps/unix/i386/fork.S: Likewise. * sysdeps/unix/mips/fork.S: Likewise. * sysdeps/unix/sparc/fork.S: Likewise. * sysdeps/unix/sysv/linux/ia64/fork.S: Likewise. * sysdeps/unix/sysv/linux/sparc/fork.S: Likewise. * sysdeps/unix/sysv/linux/syscalls.list: Likewise. * sysdeps/generic/vfork.c: Add libc_hidden_def for __vfork. * sysdeps/unix/bsd/hp/m68k/vfork.S: Add __GI___vfork alias. * sysdeps/unix/bsd/i386/vfork.S: Likewise. * sysdeps/unix/bsd/sun/m68k/vfork.S: Likewise. * sysdeps/unix/bsd/ultrix4/mips/vfork.S: Likewise. * sysdeps/unix/bsd/vax/vfork.S: Likewise. * sysdeps/unix/sparc/vfork.S: Likewise. * sysdeps/unix/sysv/linux/arm/vfork.S: Likewise. * sysdeps/unix/sysv/linux/cris/vfork.S: Likewise. * sysdeps/unix/sysv/linux/i386/vfork.S: Likewise. * sysdeps/unix/sysv/linux/ia64/vfork.S: Likewise. * sysdeps/unix/sysv/linux/m68k/vfork.S: Likewise. * sysdeps/unix/sysv/linux/sh/vfork.S: Likewise. * sysdeps/unix/sysv/linux/sparc/vfork.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/vfork.S: Likewise.
68 lines
1.9 KiB
ArmAsm
68 lines
1.9 KiB
ArmAsm
/* Copyright (C) 1999, 2002 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Andreas Schwab <schwab@gnu.org>.
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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.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 __NR_vfork
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/* Pop the return PC value into A0. */
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movel %sp@+, %a0
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/* Stuff the syscall number in D0 and trap into the kernel. */
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movel #SYS_ify (vfork), %d0
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trap #0
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tstl %d0
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jmi .Lerror /* Branch forward if it failed. */
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/* Jump to the return PC. */
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jmp %a0@
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.Lerror:
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/* Push back the return PC. */
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movel %a0,%sp@-
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/* Check if vfork syscall is known at all. */
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movel #-ENOSYS,%d1
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cmpl %d0,%d1
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jne SYSCALL_ERROR_LABEL
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#endif
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/* If we don't have vfork, fork is close enough. */
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movel #SYS_ify (fork), %d0
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trap #0
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tstl %d0
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jmi SYSCALL_ERROR_LABEL
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rts
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PSEUDO_END (__vfork)
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strong_alias (__vfork, __GI___vfork)
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weak_alias (__vfork, vfork)
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