1d506c26d9
This commit is the result of the following actions:
- Running gdb/copyright.py to update all of the copyright headers to
include 2024,
- Manually updating a few files the copyright.py script told me to
update, these files had copyright headers embedded within the
file,
- Regenerating gdbsupport/Makefile.in to refresh it's copyright
date,
- Using grep to find other files that still mentioned 2023. If
these files were updated last year from 2022 to 2023 then I've
updated them this year to 2024.
I'm sure I've probably missed some dates. Feel free to fix them up as
you spot them.
142 lines
3.2 KiB
C
142 lines
3.2 KiB
C
/* This testcase is part of GDB, the GNU debugger.
|
|
|
|
Copyright 2014-2024 Free Software Foundation, Inc.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program 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 General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
|
|
|
#include <pthread.h>
|
|
#include <signal.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
|
|
/* Used to individually advance each thread to the desired stopping point. */
|
|
int ready;
|
|
|
|
sig_atomic_t sigusr1_received;
|
|
sig_atomic_t sigusr2_received;
|
|
sig_atomic_t sigabrt_received;
|
|
|
|
/* Number of threads currently running. */
|
|
int thread_count;
|
|
pthread_mutex_t thread_count_mutex;
|
|
pthread_cond_t thread_count_condvar;
|
|
|
|
static void
|
|
incr_thread_count (void)
|
|
{
|
|
pthread_mutex_lock (&thread_count_mutex);
|
|
++thread_count;
|
|
pthread_cond_signal (&thread_count_condvar);
|
|
pthread_mutex_unlock (&thread_count_mutex);
|
|
}
|
|
|
|
static void
|
|
sigusr1_handler (int sig)
|
|
{
|
|
sigusr1_received = 1;
|
|
}
|
|
|
|
static void
|
|
sigusr2_handler (int sig)
|
|
{
|
|
sigusr2_received = 1;
|
|
}
|
|
|
|
static void
|
|
sigabrt_handler (int sig)
|
|
{
|
|
sigabrt_received = 1;
|
|
}
|
|
|
|
static void *
|
|
sigusr1_thread_function (void *unused)
|
|
{
|
|
incr_thread_count ();
|
|
while (!ready)
|
|
usleep (100);
|
|
pthread_kill (pthread_self (), SIGUSR1);
|
|
}
|
|
|
|
static void *
|
|
sigusr2_thread_function (void *unused)
|
|
{
|
|
incr_thread_count ();
|
|
while (!ready)
|
|
usleep (100);
|
|
/* pthread_kill (pthread_self (), SIGUSR2); - manually injected by gdb */
|
|
}
|
|
|
|
/* Wait until all threads are at a point where a backtrace will
|
|
show the thread entry point function. */
|
|
|
|
static void
|
|
wait_all_threads_running (int nr_threads)
|
|
{
|
|
pthread_mutex_lock (&thread_count_mutex);
|
|
|
|
while (1)
|
|
{
|
|
if (thread_count == nr_threads)
|
|
{
|
|
pthread_mutex_unlock (&thread_count_mutex);
|
|
return;
|
|
}
|
|
pthread_cond_wait (&thread_count_condvar, &thread_count_mutex);
|
|
}
|
|
}
|
|
|
|
static void
|
|
all_threads_running (void)
|
|
{
|
|
while (!ready)
|
|
usleep (100);
|
|
}
|
|
|
|
static void
|
|
all_threads_done (void)
|
|
{
|
|
}
|
|
|
|
int
|
|
main ()
|
|
{
|
|
pthread_t sigusr1_thread, sigusr2_thread;
|
|
|
|
/* Protect against running forever. */
|
|
alarm (60);
|
|
|
|
signal (SIGUSR1, sigusr1_handler);
|
|
signal (SIGUSR2, sigusr2_handler);
|
|
signal (SIGABRT, sigabrt_handler);
|
|
|
|
/* Don't let any thread advance past initialization. */
|
|
ready = 0;
|
|
|
|
pthread_mutex_init (&thread_count_mutex, NULL);
|
|
pthread_cond_init (&thread_count_condvar, NULL);
|
|
|
|
#define NR_THREADS 2
|
|
pthread_create (&sigusr1_thread, NULL, sigusr1_thread_function, NULL);
|
|
pthread_create (&sigusr2_thread, NULL, sigusr2_thread_function, NULL);
|
|
wait_all_threads_running (NR_THREADS);
|
|
all_threads_running ();
|
|
|
|
pthread_kill (pthread_self (), SIGABRT);
|
|
|
|
pthread_join (sigusr1_thread, NULL);
|
|
pthread_join (sigusr2_thread, NULL);
|
|
all_threads_done ();
|
|
|
|
return 0;
|
|
}
|