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76a50749 | 1 | /* Globally enable events. |
04277e02 | 2 | Copyright (C) 1999-2019 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 | 19 | |
e054f494 | 20 | #include <stdint.h> |
76a50749 UD |
21 | #include "thread_dbP.h" |
22 | ||
23 | ||
24 | td_err_e | |
9dd346ff | 25 | td_ta_set_event (const td_thragent_t *ta_arg, td_thr_events_t *event) |
76a50749 | 26 | { |
7f08f55a RM |
27 | td_thragent_t *const ta = (td_thragent_t *) ta_arg; |
28 | td_err_e err; | |
abca9f7f | 29 | psaddr_t eventmask = 0; |
5da3d377 | 30 | void *copy = NULL; |
7f08f55a | 31 | |
76a50749 UD |
32 | LOG ("td_ta_set_event"); |
33 | ||
34 | /* Test whether the TA parameter is ok. */ | |
35 | if (! ta_ok (ta)) | |
36 | return TD_BADTA; | |
37 | ||
7f08f55a RM |
38 | /* Fetch the old event mask from the inferior and modify it in place. */ |
39 | err = DB_GET_SYMBOL (eventmask, ta, __nptl_threads_events); | |
40 | if (err == TD_OK) | |
41 | err = DB_GET_STRUCT (copy, ta, eventmask, td_thr_events_t); | |
42 | if (err == TD_OK) | |
43 | { | |
44 | uint32_t idx; | |
45 | for (idx = 0; idx < TD_EVENTSIZE; ++idx) | |
46 | { | |
47 | psaddr_t word; | |
48 | uint32_t mask; | |
49 | err = DB_GET_FIELD_LOCAL (word, ta, copy, | |
50 | td_thr_events_t, event_bits, idx); | |
51 | if (err != TD_OK) | |
52 | break; | |
53 | mask = (uintptr_t) word; | |
54 | mask |= event->event_bits[idx]; | |
55 | word = (psaddr_t) (uintptr_t) mask; | |
56 | err = DB_PUT_FIELD_LOCAL (ta, copy, | |
57 | td_thr_events_t, event_bits, idx, word); | |
58 | if (err != TD_OK) | |
59 | break; | |
60 | } | |
61 | if (err == TD_NOAPLIC) | |
62 | { | |
63 | err = TD_OK; | |
64 | while (idx < TD_EVENTSIZE) | |
65 | if (event->event_bits[idx++] != 0) | |
66 | { | |
67 | err = TD_NOEVENT; | |
68 | break; | |
69 | } | |
70 | } | |
71 | if (err == TD_OK) | |
72 | /* Now write it back to the inferior. */ | |
73 | err = DB_PUT_STRUCT (ta, eventmask, td_thr_events_t, copy); | |
74 | } | |
76a50749 | 75 | |
7f08f55a | 76 | return err; |
76a50749 | 77 | } |