1 /*
2 * Copyright (c) 2013-2019, Huawei Technologies Co., Ltd. All rights reserved.
3 * Copyright (c) 2020, Huawei Device Co., Ltd. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this list of
9 * conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
12 * of conditions and the following disclaimer in the documentation and/or other materials
13 * provided with the distribution.
14 *
15 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
16 * to endorse or promote products derived from this software without specific prior written
17 * permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include "sys/prctl.h"
33 #include "los_task_pri.h"
34
prctl(int option,...)35 int prctl(int option, ...)
36 {
37 unsigned long name;
38 va_list ap;
39 errno_t err;
40
41 va_start(ap, option);
42 if (option != PR_SET_NAME) {
43 PRINT_ERR("%s: %d, no support option : 0x%x\n", __FUNCTION__, __LINE__, option);
44 err = EOPNOTSUPP;
45 goto ERROR;
46 }
47
48 name = va_arg(ap, unsigned long);
49 err = OsSetTaskName(OsCurrTaskGet(), (const char *)name, TRUE);
50 if (err != LOS_OK) {
51 goto ERROR;
52 }
53
54 va_end(ap);
55 return ENOERR;
56
57 ERROR:
58 va_end(ap);
59 return -err;
60 }
61
62