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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.
78 lines
2.1 KiB
C
78 lines
2.1 KiB
C
/* This testcase is part of GDB, the GNU debugger.
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Copyright 2018-2024 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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#include <pthread.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <assert.h>
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#define NUM_THREADS 4
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/* Crude spin lock. Threads all spin until this is set to 0. */
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int go = 1;
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/* Thread function, just spin until GO is set to 0. */
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void *
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perform_work (void *argument)
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{
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/* Cast to volatile to ensure that ARGUMENT is loaded each time around
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the loop. */
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while (*((volatile int*) argument))
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{
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/* Nothing. */
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}
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return NULL;
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}
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/* The spin loop for the main thread. */
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void
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function (void)
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{
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(void) perform_work (&go);
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printf ("Finished from function\n");
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}
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/* Main program, create some threads which all spin waiting for GO to be
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set to 0. */
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int
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main (void)
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{
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pthread_t threads[NUM_THREADS];
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int result_code;
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unsigned index;
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/* Create some threads. */
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for (index = 0; index < NUM_THREADS; ++index)
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{
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printf ("In main: creating thread %d\n", index);
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result_code = pthread_create (&threads[index], NULL, perform_work, &go);
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assert (!result_code);
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}
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function ();
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/* Wait for each thread to complete. */
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for (index = 0; index < NUM_THREADS; ++index)
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{
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/* Block until thread INDEX completes. */
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result_code = pthread_join (threads[index], NULL);
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assert (!result_code);
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printf ("In main: thread %d has completed\n", index);
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}
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printf ("In main: All threads completed successfully\n");
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return 0;
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}
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