1 | /* Enable event process-wide. |
2 | Copyright (C) 1999-2022 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #include "thread_dbP.h" |
20 | |
21 | |
22 | td_err_e |
23 | td_thr_event_enable (const td_thrhandle_t *th, int onoff) |
24 | { |
25 | LOG ("td_thr_event_enable" ); |
26 | |
27 | if (th->th_unique != 0) |
28 | { |
29 | /* Write the new value into the thread data structure. */ |
30 | td_err_e err = DB_PUT_FIELD (th->th_ta_p, th->th_unique, pthread, |
31 | report_events, 0, |
32 | (psaddr_t) 0 + (onoff != 0)); |
33 | if (err != TD_OK) |
34 | return err; |
35 | |
36 | /* Just in case we are in the window between initializing __stack_user |
37 | and copying from __nptl_initial_report_events, we set it too. |
38 | It doesn't hurt to do this for non-initial threads, since it |
39 | won't be consulted again anyway. It would take another fetch |
40 | to get the tid and determine this isn't the initial thread, |
41 | so just do it always. */ |
42 | } |
43 | |
44 | /* We are faking it for the initial thread before its thread |
45 | descriptor is set up. */ |
46 | return DB_PUT_VALUE (th->th_ta_p, __nptl_initial_report_events, 0, |
47 | (psaddr_t) 0 + (onoff != 0)); |
48 | } |
49 | |