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d4697bc9 | 1 | /* Copyright (C) 2005-2014 Free Software Foundation, Inc. |
02a9f771 DJ |
2 | This file is part of the GNU C Library. |
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 | |
ab84e3ff PE |
15 | License along with the GNU C Library. If not, see |
16 | <http://www.gnu.org/licenses/>. */ | |
02a9f771 DJ |
17 | |
18 | #include <tcb-offsets.h> | |
19 | ||
20 | /* Save the PID value. */ | |
21 | #define SAVE_PID \ | |
5232b909 | 22 | GET_TLS (r2); \ |
3ae44082 RH |
23 | NEGOFF_ADJ_BASE2 (r2, r0, PID_OFFSET); /* Save the TLS addr in r2. */ \ |
24 | ldr r3, NEGOFF_OFF1 (r2, PID_OFFSET); /* Load the saved PID. */ \ | |
25 | rsbs r0, r3, #0; /* Negate it. */ \ | |
26 | it eq; \ | |
27 | moveq r0, #0x80000000; /* Use 0x80000000 if it was 0. */ \ | |
28 | str r0, NEGOFF_OFF1 (r2, PID_OFFSET); /* Store the temp PID. */ | |
02a9f771 DJ |
29 | |
30 | /* Restore the old PID value in the parent. */ | |
31 | #define RESTORE_PID \ | |
32 | cmp r0, #0; /* If we are the parent... */ \ | |
3ae44082 RH |
33 | it ne; \ |
34 | strne r3, NEGOFF_OFF1 (r2, PID_OFFSET); /* restore the saved PID. */ | |
02a9f771 DJ |
35 | |
36 | #include "../vfork.S" |