glibc/nptl_db/td_thr_event_enable.c
Alejandro Colomar 53fcdf5f74 Silence most -Wzero-as-null-pointer-constant diagnostics
Replace 0 by NULL and {0} by {}.

Omit a few cases that aren't so trivial to fix.

Link: <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117059>
Link: <https://software.codidact.com/posts/292718/292759#answer-292759>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-11-25 16:45:59 -03:00

49 lines
1.7 KiB
C

/* Enable event process-wide.
Copyright (C) 1999-2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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
<https://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 != NULL)
{
/* 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));
}