| /* |
| * Copyright (c) 2004, Bull S.A.. All rights reserved. |
| * Created by: Sebastien Decugis |
| |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of version 2 of the GNU General Public License as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it would be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write the Free Software Foundation, Inc., 59 |
| * Temple Place - Suite 330, Boston MA 02111-1307, USA. |
| |
| * This sample test aims to check the following assertion: |
| * |
| * If the current thread has an alternate stack, the new thread does not inherit |
| * this stack |
| |
| * The steps are: |
| * -> Create a thread with an alternate stack. |
| * -> From this thread, create another thread. |
| * -> Check that the new thread does not use the same stack. |
| |
| */ |
| |
| /* We are testing conformance to IEEE Std 1003.1, 2003 Edition */ |
| #define _POSIX_C_SOURCE 200112L |
| |
| /* Some routines are part of the XSI Extensions */ |
| #ifndef WITHOUT_XOPEN |
| #define _XOPEN_SOURCE 600 |
| #endif |
| /********************************************************************************************/ |
| /****************************** standard includes *****************************************/ |
| /********************************************************************************************/ |
| #include <pthread.h> |
| #include <stdarg.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <unistd.h> |
| |
| #include <sched.h> |
| #include <semaphore.h> |
| #include <errno.h> |
| #include <assert.h> |
| #include <sys/wait.h> |
| |
| /********************************************************************************************/ |
| /****************************** Test framework *****************************************/ |
| /********************************************************************************************/ |
| #include "../testfrmw/testfrmw.h" |
| #include "../testfrmw/testfrmw.c" |
| /* This header is responsible for defining the following macros: |
| * UNRESOLVED(ret, descr); |
| * where descr is a description of the error and ret is an int (error code for example) |
| * FAILED(descr); |
| * where descr is a short text saying why the test has failed. |
| * PASSED(); |
| * No parameter. |
| * |
| * Both three macros shall terminate the calling process. |
| * The testcase shall not terminate in any other maneer. |
| * |
| * The other file defines the functions |
| * void output_init() |
| * void output(char * string, ...) |
| * |
| * Those may be used to output information. |
| */ |
| |
| /********************************************************************************************/ |
| /********************************** Configuration ******************************************/ |
| /********************************************************************************************/ |
| #ifndef VERBOSE |
| #define VERBOSE 1 |
| #endif |
| |
| /********************************************************************************************/ |
| /*********************************** Test cases *****************************************/ |
| /********************************************************************************************/ |
| |
| #define STD_MAIN |
| #include "../testfrmw/threads_scenarii.c" |
| |
| /* This file will define the following objects: |
| * scenarii: array of struct __scenario type. |
| * NSCENAR : macro giving the total # of scenarii |
| * scenar_init(): function to call before use the scenarii array. |
| * scenar_fini(): function to call after end of use of the scenarii array. |
| */ |
| |
| /********************************************************************************************/ |
| /*********************************** Real Test *****************************************/ |
| /********************************************************************************************/ |
| |
| void * teststack(void * arg) |
| { |
| int ret=0; |
| *(int **)arg = &ret; |
| return NULL; |
| } |
| |
| /* Thread function */ |
| void * threaded(void * arg) |
| { |
| int ret; |
| int * child_stack; |
| pthread_t gchild; |
| |
| int sz = sysconf(_SC_THREAD_STACK_MIN); |
| |
| if (scenarii[sc].bottom != NULL) |
| { |
| #if VERBOSE > 1 |
| output("Processing test\n"); |
| #endif |
| |
| /* Create a new thread and get a location inside its stack */ |
| ret = pthread_create(&gchild, NULL, teststack, &child_stack); |
| if (ret != 0) { UNRESOLVED(ret, "Failed to create a thread with default attribute"); } |
| |
| ret = pthread_join(gchild, NULL); |
| if (ret != 0) { UNRESOLVED(ret, "Failed to join the test thread"); } |
| |
| /* Check the new thread stack location was outside of the current thread location */ |
| /* We convert all the @ to longs */ |
| #if VERBOSE > 4 |
| output("Current stack : %p -> %p\n", scenarii[sc].bottom, sz + (long)scenarii[sc].bottom); |
| output("Child location: %p\n", child_stack); |
| #endif |
| |
| if ((((long)scenarii[sc].bottom) < ((long)child_stack)) |
| && (((long)child_stack) < (((long)scenarii[sc].bottom) + sz))) |
| { |
| FAILED("The new thread inherited th alternate stack from its parent"); |
| } |
| } |
| |
| /* Signal we're done (especially in case of a detached thread) */ |
| do { ret = sem_post(&scenarii[sc].sem); } |
| while ((ret == -1) && (errno == EINTR)); |
| if (ret == -1) { UNRESOLVED(errno, "Failed to wait for the semaphore"); } |
| |
| /* return */ |
| return arg; |
| } |