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.
120 lines
3.1 KiB
C
120 lines
3.1 KiB
C
/* This testcase is part of GDB, the GNU debugger.
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Copyright 2012-2024 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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#define _GNU_SOURCE
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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 <sched.h>
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#include <errno.h>
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#include <string.h>
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#include <assert.h>
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#include <stdio.h>
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#include <sys/types.h>
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#include <dirent.h>
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#include <assert.h>
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#include <unistd.h>
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/* Count the number of tasks/threads in the PID thread group. */
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static int
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count_tasks (pid_t pid)
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{
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char path[100];
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int count;
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DIR *d;
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snprintf (path, sizeof (path), "/proc/%d/task/", (int) pid);
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d = opendir (path);
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if (d == NULL)
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return -1;
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for (count = 0; readdir (d) != NULL; count++)
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;
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closedir (d);
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/* Account for '.' and '..'. */
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assert (count > 2);
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return count - 2;
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}
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pthread_attr_t attr[CPU_SETSIZE];
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pthread_t thr[CPU_SETSIZE];
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static void *
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mythread (void *_arg)
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{
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return NULL;
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}
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int
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main ()
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{
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int i;
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for (i = 0; i < CPU_SETSIZE; i++)
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{
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cpu_set_t set;
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int ret;
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pthread_attr_init (&attr[i]);
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CPU_ZERO_S (sizeof (set), &set);
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CPU_SET_S (i, sizeof (set), &set);
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ret = pthread_attr_setaffinity_np (&attr[i], sizeof (set), &set);
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if (ret != 0)
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{
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fprintf (stderr, "set_affinity: %d: %s\n", ret, strerror (ret));
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exit (3);
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}
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ret = pthread_create (&thr[i], &attr[i], mythread, NULL);
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/* Should fail with EINVAL at some point. */
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if (ret != 0)
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{
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unsigned long t;
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fprintf (stderr, "pthread_create: %d: %s\n", ret, strerror (ret));
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/* Wait for all threads to exit. pthread_create spawns a
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clone thread even in the failing case, as it can only try
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to set the affinity after creating the thread. That new
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thread is immediately canceled (because setting the
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affinity fails), by killing it with a SIGCANCEL signal,
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which may end up in pthread_cancel/unwind paths, which
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may trigger a libgcc_s.so load, making the thread hit the
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solib-event breakpoint. Now, if we would let the program
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exit without waiting, sometimes it would happen that the
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inferior exits just while we're handling the solib-event,
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resulting in errors being thrown due to failing ptrace
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call fails (with ESCHR), breaking the test. */
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t = 16;
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while (count_tasks (getpid ()) > 1)
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{
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usleep (t);
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if (t < 256)
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t *= 2;
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}
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/* Normal exit, because this is what we are expecting. */
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exit (0);
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}
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}
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/* Should not normally be reached. */
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exit (1);
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}
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