diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/x86_64/pt-vfork.S')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/x86_64/pt-vfork.S | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pt-vfork.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pt-vfork.S index 41ae251333..653b6b12fc 100644 --- a/nptl/sysdeps/unix/sysv/linux/x86_64/pt-vfork.S +++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pt-vfork.S @@ -1 +1,33 @@ -#include <sysdeps/unix/sysv/linux/x86_64/vfork.S> +/* Copyright (C) 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <tcb-offsets.h> + +#define SAVE_PID \ + movl %fs:PID, %esi; \ + movl %esi, %edx; \ + negl %edx; \ + movl %edx, %fs:PID + +#define RESTORE_PID \ + testq %rax, %rax; \ + je 1f; \ + movl %esi, %fs:PID; \ +1: + +#include <../../../../../../sysdeps/unix/sysv/linux/x86_64/vfork.S> |