| /* Copyright (C) 1999,2002,2004,2006 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. */ |
| |
| /* We want an #include_next, but we are the main source file. |
| So, #include ourselves and in that incarnation we can use #include_next. */ |
| #ifndef INCLUDED_SELF |
| # define INCLUDED_SELF |
| # include <vfork.S> |
| #else |
| |
| # include <tcb-offsets.h> |
| |
| /* Save the PID value. */ |
| # define SAVE_PID \ |
| movl %gs:PID, %edx; \ |
| movl %edx, %eax; \ |
| negl %eax; \ |
| jne 1f; \ |
| movl $0x80000000, %eax; \ |
| 1: movl %eax, %gs:PID |
| |
| /* Restore the old PID value in the parent. */ |
| # define RESTORE_PID \ |
| testl %eax, %eax; \ |
| je 1f; \ |
| movl %edx, %gs:PID; \ |
| 1: |
| |
| # include_next <vfork.S> |
| #endif |
