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76a50749 | 1 | /* Enable specific event for thread. |
2b778ceb | 2 | Copyright (C) 1999-2021 Free Software Foundation, Inc. |
76a50749 UD |
3 | This file is part of the GNU C Library. |
4 | Contributed by Ulrich Drepper <drepper@redhat.com>, 1999. | |
5 | ||
6 | The GNU C Library is free software; you can redistribute it and/or | |
7 | modify it under the terms of the GNU Lesser General Public | |
8 | License as published by the Free Software Foundation; either | |
9 | version 2.1 of the License, or (at your option) any later version. | |
10 | ||
11 | The GNU C Library is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | Lesser General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 | 17 | License along with the GNU C Library; if not, see |
5a82c748 | 18 | <https://www.gnu.org/licenses/>. */ |
76a50749 UD |
19 | |
20 | #include <stddef.h> | |
e054f494 | 21 | #include <stdint.h> |
76a50749 UD |
22 | |
23 | #include "thread_dbP.h" | |
24 | ||
25 | ||
26 | td_err_e | |
9dd346ff | 27 | td_thr_set_event (const td_thrhandle_t *th, td_thr_events_t *event) |
76a50749 | 28 | { |
7f08f55a RM |
29 | td_err_e err; |
30 | psaddr_t eventmask; | |
31 | void *copy; | |
32 | ||
76a50749 UD |
33 | LOG ("td_thr_set_event"); |
34 | ||
7f08f55a RM |
35 | /* Fetch the old event mask from the inferior and modify it in place. */ |
36 | err = DB_GET_FIELD_ADDRESS (eventmask, th->th_ta_p, | |
37 | th->th_unique, pthread, eventbuf_eventmask, 0); | |
38 | if (err == TD_OK) | |
39 | err = DB_GET_STRUCT (copy, th->th_ta_p, eventmask, td_thr_events_t); | |
40 | if (err == TD_OK) | |
41 | { | |
42 | uint32_t idx; | |
43 | for (idx = 0; idx < TD_EVENTSIZE; ++idx) | |
44 | { | |
45 | psaddr_t word; | |
46 | uint32_t mask; | |
47 | err = DB_GET_FIELD_LOCAL (word, th->th_ta_p, copy, | |
48 | td_thr_events_t, event_bits, idx); | |
49 | if (err != TD_OK) | |
50 | break; | |
51 | mask = (uintptr_t) word; | |
52 | mask |= event->event_bits[idx]; | |
53 | word = (psaddr_t) (uintptr_t) mask; | |
54 | err = DB_PUT_FIELD_LOCAL (th->th_ta_p, copy, | |
55 | td_thr_events_t, event_bits, idx, word); | |
56 | if (err != TD_OK) | |
57 | break; | |
58 | } | |
59 | if (err == TD_NOAPLIC) | |
60 | { | |
61 | err = TD_OK; | |
62 | while (idx < TD_EVENTSIZE) | |
63 | if (event->event_bits[idx++] != 0) | |
64 | { | |
65 | err = TD_NOEVENT; | |
66 | break; | |
67 | } | |
68 | } | |
69 | if (err == TD_OK) | |
70 | /* Now write it back to the inferior. */ | |
71 | err = DB_PUT_STRUCT (th->th_ta_p, eventmask, td_thr_events_t, copy); | |
72 | } | |
73 | ||
74 | return err; | |
76a50749 | 75 | } |