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/* Copyright (C) 2003-2023 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 <dlfcn.h>
#include <errno.h>
#include <pthread.h>
#include <signal.h>
#include <semaphore.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <pthreaddef.h>
#define THE_SIG SIGUSR1
/* The stack size can be overriden. With a sufficiently large stack
size, thread stacks for terminated threads are freed, but this does
not happen with the default size of 1 MiB. */
enum { default_stack_size_in_mb = 1 };
static long stack_size_in_mb;
#define N 10
static pthread_t th[N];
static int do_test (void);
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
#define CB(n) \
static void \
cb##n (void) \
{ \
if (th[n] != pthread_self ()) \
{ \
write_message ("wrong callback\n"); \
_exit (1); \
} \
}
CB (0)
CB (1)
CB (2)
CB (3)
CB (4)
CB (5)
CB (6)
CB (7)
CB (8)
CB (9)
static void (*cbs[]) (void) =
{
cb0, cb1, cb2, cb3, cb4, cb5, cb6, cb7, cb8, cb9
};
sem_t s;
pthread_barrier_t b;
#define TOTAL_SIGS 1000
int nsigs;
int
do_test (void)
{
if (stack_size_in_mb == 0)
stack_size_in_mb = default_stack_size_in_mb;
if ((uintptr_t) pthread_self () & (TCB_ALIGNMENT - 1))
{
puts ("initial thread's struct pthread not aligned enough");
exit (1);
}
if (pthread_barrier_init (&b, NULL, N + 1) != 0)
{
puts ("barrier_init failed");
exit (1);
}
if (sem_init (&s, 0, 0) != 0)
{
puts ("sem_init failed");
exit (1);
}
void *h = dlopen ("tst-tls3mod.so", RTLD_LAZY);
if (h == NULL)
{
puts ("dlopen failed");
exit (1);
}
void *(*tf) (void *) = dlsym (h, "tf");
if (tf == NULL)
{
puts ("dlsym for tf failed");
exit (1);
}
struct sigaction sa;
sa.sa_handler = dlsym (h, "handler");
if (sa.sa_handler == NULL)
{
puts ("dlsym for handler failed");
exit (1);
}
sigemptyset (&sa.sa_mask);
sa.sa_flags = 0;
if (sigaction (THE_SIG, &sa, NULL) != 0)
{
puts ("sigaction failed");
exit (1);
}
pthread_attr_t a;
if (pthread_attr_init (&a) != 0)
{
puts ("attr_init failed");
exit (1);
}
if (pthread_attr_setstacksize (&a, stack_size_in_mb * 1024 * 1024) != 0)
{
puts ("attr_setstacksize failed");
return 1;
}
int r;
for (r = 0; r < 10; ++r)
{
int i;
for (i = 0; i < N; ++i)
if (pthread_create (&th[i], &a, tf, cbs[i]) != 0)
{
puts ("pthread_create failed");
exit (1);
}
nsigs = 0;
pthread_barrier_wait (&b);
sigset_t ss;
sigemptyset (&ss);
sigaddset (&ss, THE_SIG);
if (pthread_sigmask (SIG_BLOCK, &ss, NULL) != 0)
{
puts ("pthread_sigmask failed");
exit (1);
}
/* Start sending signals. */
for (i = 0; i < TOTAL_SIGS; ++i)
{
if (kill (getpid (), THE_SIG) != 0)
{
puts ("kill failed");
exit (1);
}
if (TEMP_FAILURE_RETRY (sem_wait (&s)) != 0)
{
puts ("sem_wait failed");
exit (1);
}
++nsigs;
}
pthread_barrier_wait (&b);
if (pthread_sigmask (SIG_UNBLOCK, &ss, NULL) != 0)
{
puts ("pthread_sigmask failed");
exit (1);
}
for (i = 0; i < N; ++i)
if (pthread_join (th[i], NULL) != 0)
{
puts ("join failed");
exit (1);
}
}
if (pthread_attr_destroy (&a) != 0)
{
puts ("attr_destroy failed");
exit (1);
}
return 0;
}
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