mirror of
git://sourceware.org/git/glibc.git
synced 2024-12-15 04:20:28 +08:00
78 lines
2.2 KiB
C
78 lines
2.2 KiB
C
/* Globally disable events.
|
|
Copyright (C) 1999-2016 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Ulrich Drepper <drepper@redhat.com>, 1999.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <stdint.h>
|
|
#include "thread_dbP.h"
|
|
|
|
|
|
td_err_e
|
|
td_ta_clear_event (const td_thragent_t *ta_arg, td_thr_events_t *event)
|
|
{
|
|
td_thragent_t *const ta = (td_thragent_t *) ta_arg;
|
|
td_err_e err;
|
|
psaddr_t eventmask = 0;
|
|
void *copy = NULL;
|
|
|
|
LOG ("td_ta_clear_event");
|
|
|
|
/* Test whether the TA parameter is ok. */
|
|
if (! ta_ok (ta))
|
|
return TD_BADTA;
|
|
|
|
/* Fetch the old event mask from the inferior and modify it in place. */
|
|
err = DB_GET_SYMBOL (eventmask, ta, __nptl_threads_events);
|
|
if (err == TD_OK)
|
|
err = DB_GET_STRUCT (copy, ta, eventmask, td_thr_events_t);
|
|
if (err == TD_OK)
|
|
{
|
|
uint32_t idx;
|
|
for (idx = 0; idx < TD_EVENTSIZE; ++idx)
|
|
{
|
|
psaddr_t word;
|
|
uint32_t mask;
|
|
err = DB_GET_FIELD_LOCAL (word, ta, copy,
|
|
td_thr_events_t, event_bits, idx);
|
|
if (err != TD_OK)
|
|
break;
|
|
mask = (uintptr_t) word;
|
|
mask &= ~event->event_bits[idx];
|
|
word = (psaddr_t) (uintptr_t) mask;
|
|
err = DB_PUT_FIELD_LOCAL (ta, copy,
|
|
td_thr_events_t, event_bits, idx, word);
|
|
if (err != TD_OK)
|
|
break;
|
|
}
|
|
if (err == TD_NOAPLIC)
|
|
{
|
|
err = TD_OK;
|
|
while (idx < TD_EVENTSIZE)
|
|
if (event->event_bits[idx++] != 0)
|
|
{
|
|
err = TD_NOEVENT;
|
|
break;
|
|
}
|
|
}
|
|
if (err == TD_OK)
|
|
/* Now write it back to the inferior. */
|
|
err = DB_PUT_STRUCT (ta, eventmask, td_thr_events_t, copy);
|
|
}
|
|
|
|
return err;
|
|
}
|