mirror of
https://sourceware.org/git/glibc.git
synced 2025-10-30 10:45:40 +03:00
54 lines
1.6 KiB
ArmAsm
54 lines
1.6 KiB
ArmAsm
/* Copyright (C) 1999-2025 Free Software Foundation, Inc.
|
|
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
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.
|
|
|
|
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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <sysdep.h>
|
|
#define _ERRNO_H 1
|
|
#include <bits/errno.h>
|
|
|
|
/* Clone the calling process, but without copying the whole address space.
|
|
The calling process is suspended until the new process exits or is
|
|
replaced by a call to `execve'. Return -1 for errors, 0 to the new process,
|
|
and the process ID of the new process to the old process. */
|
|
|
|
ENTRY (__vfork)
|
|
ble 0x100(%sr2, %r0)
|
|
ldi __NR_vfork, %r20
|
|
|
|
ldi -4096, %r1
|
|
comclr,<< %r1, %ret0, %r0 /* Note: unsigned compare. */
|
|
bv,n %r0(%rp)
|
|
|
|
/* Something bad happened -- no child created -- we need a frame */
|
|
ldo 64(%sp), %sp
|
|
.cfi_def_cfa_offset -64
|
|
|
|
/* Set errno */
|
|
bl __syscall_error, %rp
|
|
sub %r0, %ret0, %arg0
|
|
|
|
/* ret0 is set to -1 by __syscall_error */
|
|
ldw -84(%sp), %rp
|
|
bv %r0(%rp)
|
|
ldo -64(%sp), %sp
|
|
|
|
PSEUDO_END (__vfork)
|
|
libc_hidden_def (__vfork)
|
|
|
|
weak_alias (__vfork, vfork)
|
|
strong_alias (__vfork, __libc_vfork)
|