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glibc/nptl_db/td_thr_event_enable.c
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/* Enable event process-wide. | |
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 "thread_dbP.h" | |
td_err_e | |
td_thr_event_enable (const td_thrhandle_t *th, int onoff) | |
{ | |
LOG ("td_thr_event_enable"); | |
if (th->th_unique != 0) | |
{ | |
/* Write the new value into the thread data structure. */ | |
td_err_e err = DB_PUT_FIELD (th->th_ta_p, th->th_unique, pthread, | |
report_events, 0, | |
(psaddr_t) 0 + (onoff != 0)); | |
if (err != TD_OK) | |
return err; | |
/* Just in case we are in the window between initializing __stack_user | |
and copying from __nptl_initial_report_events, we set it too. | |
It doesn't hurt to do this for non-initial threads, since it | |
won't be consulted again anyway. It would take another fetch | |
to get the tid and determine this isn't the initial thread, | |
so just do it always. */ | |
} | |
/* We are faking it for the initial thread before its thread | |
descriptor is set up. */ | |
return DB_PUT_VALUE (th->th_ta_p, __nptl_initial_report_events, 0, | |
(psaddr_t) 0 + (onoff != 0)); | |
} |