diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/arm/vfork.S')
-rw-r--r-- | sysdeps/unix/sysv/linux/arm/vfork.S | 59 |
1 files changed, 0 insertions, 59 deletions
diff --git a/sysdeps/unix/sysv/linux/arm/vfork.S b/sysdeps/unix/sysv/linux/arm/vfork.S deleted file mode 100644 index e3666ea501..0000000000 --- a/sysdeps/unix/sysv/linux/arm/vfork.S +++ /dev/null @@ -1,59 +0,0 @@ -/* Copyright (C) 1999-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Philip Blundell <philb@gnu.org>. - - 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 - <http://www.gnu.org/licenses/>. */ - -#include <sysdep.h> -#define _ERRNO_H 1 -#include <bits/errno.h> -#include <tcb-offsets.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) - /* The DO_CALL macro saves r7 on the stack, to enable generation - of ARM unwind info. Since the stack is initially shared between - parent and child of vfork, that saved value could be corrupted. - To avoid this problem, we save r7 into ip as well, and restore - from there. */ - mov ip, r7 - cfi_register (r7, ip) - .fnstart - push { r7 } - cfi_adjust_cfa_offset (4) - .save { r7 } - ldr r7, =SYS_ify (vfork) - swi 0x0 - .fnend - add sp, sp, #4 - cfi_adjust_cfa_offset (-4) - mov r7, ip - cfi_restore (r7) - - cmn a1, #4096 - it cc - RETINSTR(cc, lr) - - b PLTJMP(SYSCALL_ERROR) -PSEUDO_END (__vfork) -libc_hidden_def (__vfork) - -weak_alias (__vfork, vfork) -strong_alias (__vfork, __libc_vfork) |