1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
|
/* Copyright (C) 2005-2014 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 <tcb-offsets.h>
/* Save the PID value. */
#define SAVE_PID \
GET_TLS (r2); \
NEGOFF_ADJ_BASE2 (r2, r0, PID_OFFSET); /* Save the TLS addr in r2. */ \
ldr r3, NEGOFF_OFF1 (r2, PID_OFFSET); /* Load the saved PID. */ \
rsbs r0, r3, #0; /* Negate it. */ \
it eq; \
moveq r0, #0x80000000; /* Use 0x80000000 if it was 0. */ \
str r0, NEGOFF_OFF1 (r2, PID_OFFSET); /* Store the temp PID. */
/* Restore the old PID value in the parent. */
#define RESTORE_PID \
cmp r0, #0; /* If we are the parent... */ \
it ne; \
strne r3, NEGOFF_OFF1 (r2, PID_OFFSET); /* restore the saved PID. */
#include "../vfork.S"
|
