benchtests: Bump start size since smaller sizes are noisy
[glibc.git] / nptl_db / td_thr_set_event.c
blob9be09058cb1e231ce91bd30ae25f062070524308
1 /* Enable specific event for thread.
2 Copyright (C) 1999-2017 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@redhat.com>, 1999.
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.
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.
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, see
18 <http://www.gnu.org/licenses/>. */
20 #include <stddef.h>
21 #include <stdint.h>
23 #include "thread_dbP.h"
26 td_err_e
27 td_thr_set_event (const td_thrhandle_t *th, td_thr_events_t *event)
29 td_err_e err;
30 psaddr_t eventmask;
31 void *copy;
33 LOG ("td_thr_set_event");
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)
42 uint32_t idx;
43 for (idx = 0; idx < TD_EVENTSIZE; ++idx)
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;
59 if (err == TD_NOAPLIC)
61 err = TD_OK;
62 while (idx < TD_EVENTSIZE)
63 if (event->event_bits[idx++] != 0)
65 err = TD_NOEVENT;
66 break;
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);
74 return err;