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      1 /*
      2  * Copyright (c) 2004, Intel Corporation. All rights reserved.
      3  * Created by:  crystal.xiong REMOVE-THIS AT intel DOT com
      4  * This file is licensed under the GPL license.  For the full content
      5  * of this license, see the COPYING file at the top level of this
      6  * source tree.
      7 
      8  * Test pthread_attr_getstack()
      9  *
     10  * Steps:
     11  * 1.  Initialize pthread_attr_t object (attr)
     12  * 2.  set the stackaddr and stacksize to attr
     13  * 3.  get the stackaddr and stacksize
     14  */
     15 
     16 #include <pthread.h>
     17 #include <limits.h>
     18 #include <stdio.h>
     19 #include <string.h>
     20 #include <stdlib.h>
     21 #include <sys/param.h>
     22 #include <errno.h>
     23 #include <unistd.h>
     24 #include "posixtest.h"
     25 
     26 #define TEST "1-1"
     27 #define FUNCTION "pthread_attr_getstack"
     28 #define ERROR_PREFIX "unexpected error: " FUNCTION " " TEST ": "
     29 
     30 int main(void)
     31 {
     32 	pthread_attr_t attr;
     33 	void *stack_addr;
     34 	size_t stack_size;
     35 	size_t ssize;
     36 	void *saddr;
     37 	int rc;
     38 
     39 	/* Initialize attr */
     40 	rc = pthread_attr_init(&attr);
     41 	if (rc != 0) {
     42 		perror(ERROR_PREFIX "pthread_attr_init");
     43 		exit(PTS_UNRESOLVED);
     44 	}
     45 
     46 	/* Get the default stack_addr and stack_size value */
     47 	rc = pthread_attr_getstack(&attr, &stack_addr, &stack_size);
     48 	if (rc != 0) {
     49 		perror(ERROR_PREFIX "pthread_attr_getstack");
     50 		exit(PTS_UNRESOLVED);
     51 	}
     52 	printf("stack_addr = %p, stack_size = %zu\n", stack_addr, stack_size);
     53 
     54 	stack_size = PTHREAD_STACK_MIN;
     55 
     56 	if (posix_memalign(&stack_addr, sysconf(_SC_PAGE_SIZE),
     57 			   stack_size) != 0) {
     58 		perror(ERROR_PREFIX "out of memory while "
     59 		       "allocating the stack memory");
     60 		exit(PTS_UNRESOLVED);
     61 	}
     62 	printf("stack_addr = %p, stack_size = %zu\n", stack_addr, stack_size);
     63 
     64 	rc = pthread_attr_setstack(&attr, stack_addr, stack_size);
     65 	if (rc != 0) {
     66 		perror(ERROR_PREFIX "pthread_attr_setstack");
     67 		exit(PTS_UNRESOLVED);
     68 	}
     69 
     70 	rc = pthread_attr_getstack(&attr, &saddr, &ssize);
     71 	if (rc != 0) {
     72 		perror(ERROR_PREFIX "pthread_attr_getstack");
     73 		exit(PTS_UNRESOLVED);
     74 	}
     75 	printf("saddr = %p, ssize = %zu\n", saddr, ssize);
     76 
     77 	rc = pthread_attr_destroy(&attr);
     78 	if (rc != 0) {
     79 		perror(ERROR_PREFIX "pthread_attr_destroy");
     80 		exit(PTS_UNRESOLVED);
     81 	}
     82 
     83 	printf("Test PASSED\n");
     84 	return PTS_PASS;
     85 }
     86