projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| a334319f | 1 | /* Copyright (C) 1999, 2002, 2004 Free Software Foundation, Inc. |
| c072ef6d | 2 | This file is part of the GNU C Library. |
| c072ef6d UD |
3 | |
| 4 | The GNU C Library is free software; you can redistribute it and/or | |
| 5 | modify it under the terms of the GNU Lesser General Public | |
| 6 | License as published by the Free Software Foundation; either | |
| 7 | version 2.1 of the License, or (at your option) any later version. | |
| 8 | ||
| 9 | The GNU C Library is distributed in the hope that it will be useful, | |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 12 | Lesser General Public License for more details. | |
| 13 | ||
| 14 | You should have received a copy of the GNU Lesser General Public | |
| 15 | License along with the GNU C Library; if not, write to the Free | |
| 16 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
| 17 | 02111-1307 USA. */ | |
| 18 | ||
| a334319f | 19 | #include <tcb-offsets.h> |
| c072ef6d | 20 | |
| 6fadea9f | 21 | /* Save the PID value. */ |
| a334319f | 22 | #define SAVE_PID \ |
| 6fadea9f | 23 | movl %gs:PID, %edx; \ |
| 8b9d6054 UD |
24 | movl %edx, %eax; \ |
| 25 | negl %eax; \ | |
| 26 | jne 1f; \ | |
| 27 | movl $0x80000000, %eax; \ | |
| 28 | 1: movl %eax, %gs:PID | |
| c072ef6d | 29 | |
| 8b9d6054 | 30 | /* Restore the old PID value in the parent. */ |
| a334319f | 31 | #define RESTORE_PID \ |
| 6fadea9f UD |
32 | testl %eax, %eax; \ |
| 33 | je 1f; \ | |
| 34 | movl %edx, %gs:PID; \ | |
| 35 | 1: | |
| c072ef6d | 36 | |
| a334319f UD |
37 | |
| 38 | #include <sysdeps/unix/sysv/linux/i386/vfork.S> |