113 lines
2.4 KiB
C
113 lines
2.4 KiB
C
#include <errno.h>
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#include <stdio.h>
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#include <string.h>
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#include <pthread.h>
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#include <unistd.h>
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#include <limits.h>
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#include <sys/mman.h>
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static pthread_mutex_t synch = PTHREAD_MUTEX_INITIALIZER;
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static void *
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test_thread (void *v_param)
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{
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pthread_mutex_lock (&synch);
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return NULL;
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}
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#define STACKSIZE 0x100000
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int
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main (void)
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{
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pthread_t thread;
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pthread_attr_t attr;
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int status;
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void *stack, *stack2;
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size_t stacksize;
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pthread_attr_init (&attr);
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stack = mmap (NULL, STACKSIZE,
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PROT_READ | PROT_WRITE | PROT_EXEC,
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MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
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if (stack == MAP_FAILED)
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{
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perror ("mmap failed");
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return 1;
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}
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status = pthread_attr_setstack (&attr, stack, STACKSIZE);
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if (status != 0)
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{
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printf ("pthread_attr_setstack failed: %s\n", strerror (status));
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return 1;
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}
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status = pthread_attr_getstack (&attr, &stack2, &stacksize);
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if (status != 0)
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{
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printf ("pthread_attr_getstack failed: %s\n", strerror (status));
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return 1;
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}
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if (stack2 != stack || stacksize != STACKSIZE)
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{
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printf ("first pthread_attr_getstack returned different stack (%p,%x)\n"
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"than was set by setstack (%p,%x)\n",
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stack2, stacksize, stack, STACKSIZE);
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return 2;
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}
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status = pthread_mutex_lock (&synch);
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if (status != 0)
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{
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printf ("cannot get lock: %s\n", strerror (status));
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return 1;
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}
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status = pthread_create (&thread, &attr, test_thread, NULL);
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if (status != 0)
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{
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printf ("pthread_create failed: %s\n", strerror (status));
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return 1;
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}
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status = pthread_getattr_np (thread, &attr);
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if (status != 0)
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{
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printf ("pthread_getattr_np failed: %s\n", strerror (status));
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return 1;
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}
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status = pthread_attr_getstack (&attr, &stack2, &stacksize);
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if (status != 0)
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{
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printf ("pthread_attr_getstack failed: %s\n", strerror (status));
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return 1;
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}
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if (stack2 != stack || stacksize != STACKSIZE)
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{
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printf ("second pthread_attr_getstack returned different stack (%p,%x)\n"
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"than was set by setstack (%p,%x)\n",
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stack2, stacksize, stack, STACKSIZE);
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return 3;
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}
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status = pthread_mutex_unlock (&synch);
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if (status != 0)
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{
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printf ("cannot release lock: %s\n", strerror (status));
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return 1;
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}
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/* pthread_detach (thread); */
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if (pthread_join (thread, NULL) != 0)
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{
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printf ("join failed\n");
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return 1;
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}
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return 0;
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}
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