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.
115 lines
2.8 KiB
C
115 lines
2.8 KiB
C
/* This testcase is part of GDB, the GNU debugger.
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Copyright 2009-2024 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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Check that watchpoints get propagated to all existing threads when the
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watchpoint is created.
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*/
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#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <pthread.h>
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#ifndef NR_THREADS
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#define NR_THREADS 4
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#endif
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#ifndef X_INCR_COUNT
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#define X_INCR_COUNT 10
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#endif
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void *thread_function (void *arg); /* Function executed by each thread. */
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pthread_mutex_t x_mutex;
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int x;
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/* Used to hold threads back until watchthreads2.exp is ready. */
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int test_ready = 0;
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int
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main ()
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{
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int res;
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pthread_t threads[NR_THREADS];
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int i;
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pthread_mutex_init (&x_mutex, NULL);
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for (i = 0; i < NR_THREADS; ++i)
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{
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res = pthread_create (&threads[i],
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NULL,
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thread_function,
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(void *) (intptr_t) i);
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if (res != 0)
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{
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fprintf (stderr, "error in thread %d create\n", i);
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abort ();
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}
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}
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for (i = 0; i < NR_THREADS; ++i)
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{
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res = pthread_join (threads[i], NULL);
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if (res != 0)
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{
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fprintf (stderr, "error in thread %d join\n", i);
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abort ();
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}
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}
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exit (EXIT_SUCCESS);
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}
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/* Easy place for a breakpoint.
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watchthreads2.exp uses this to track when all threads are running
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instead of, for example, the program keeping track
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because we don't need the program to know when all threads are running,
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instead we need gdb to know when all threads are running.
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There is a delay between when a thread has started and when the thread
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has been registered with gdb. */
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void
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thread_started ()
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{
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}
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void *
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thread_function (void *arg)
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{
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int i;
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thread_started ();
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/* Don't start incrementing X until watchthreads2.exp is ready. */
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while (! test_ready)
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usleep (1);
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for (i = 0; i < X_INCR_COUNT; ++i)
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{
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pthread_mutex_lock (&x_mutex);
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/* For debugging. */
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printf ("Thread %ld changing x %d -> %d\n", (long) arg, x, x + 1);
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/* The call to usleep is so that when the watchpoint triggers,
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the pc is still on the same line. */
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++x; usleep (1); /* X increment. */
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pthread_mutex_unlock (&x_mutex);
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}
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pthread_exit (NULL);
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}
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