diff options
Diffstat (limited to 'libpthread/linuxthreads/sysdeps/unix/sysv/linux/x86_64/vfork.S')
-rw-r--r-- | libpthread/linuxthreads/sysdeps/unix/sysv/linux/x86_64/vfork.S | 61 |
1 files changed, 0 insertions, 61 deletions
diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/x86_64/vfork.S b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/x86_64/vfork.S deleted file mode 100644 index 1a58077c4..000000000 --- a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/x86_64/vfork.S +++ /dev/null @@ -1,61 +0,0 @@ -/* Copyright (C) 2001, 2002, 2003, 2004 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 - <http://www.gnu.org/licenses/>. */ - -#include <sysdep-cancel.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) - -#ifdef SHARED - cmpq $0, __libc_pthread_functions(%rip) -#else - .weak pthread_create - movq $pthread_create, %rax - testq %rax, %rax -#endif - jne HIDDEN_JUMPTARGET (fork) - - /* Pop the return PC value into RDI. We need a register that - is preserved by the syscall and that we're allowed to destroy. */ - popq %rdi - cfi_adjust_cfa_offset(-8) - - /* Stuff the syscall number in RAX and enter into the kernel. */ - movl $SYS_ify (vfork), %eax - syscall - - /* Push back the return PC. */ - pushq %rdi - cfi_adjust_cfa_offset(8) - - cmpl $-4095, %eax - jae SYSCALL_ERROR_LABEL /* Branch forward if it failed. */ - - /* Normal return. */ -.Lpseudo_end: - ret - -PSEUDO_END (__vfork) -libc_hidden_def (__vfork) - -weak_alias (__vfork, vfork) |