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115 lines
2.5 KiB
115 lines
2.5 KiB
/*
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* Copyright 2002-2019 Intel Corporation.
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*
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* This software is provided to you as Sample Source Code as defined in the accompanying
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* End User License Agreement for the Intel(R) Software Development Products ("Agreement")
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* section 1.L.
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*
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* This software and the related documents are provided as is, with no express or implied
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* warranties, other than those that are expressly stated in the License.
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*/
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/*! @file
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* Test detaching - reattach Pin on Linux
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* The application creates threads in a loop. Each thread does some work and exits.
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* The process in endless, expected to be stopped by tool.
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*/
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#include <stdio.h>
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#include <pthread.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <errno.h>
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#include <string.h>
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#include <dlfcn.h>
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#include <sys/types.h>
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#include <math.h>
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#include "../Utils/threadlib.h"
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#define NTHREADS 20
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#ifdef TARGET_LINUX
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#define DLL_SUFFIX ".so"
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#elif defined(TARGET_MAC)
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#define DLL_SUFFIX ".dylib"
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#endif
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# define TLS_GET_GS_REG() \
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({ int __seg; __asm ("movw %%gs, %w0" : "=q" (__seg)); __seg & 0xffff; })
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volatile bool loop1, loop2 ;
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void * thread_func (void *arg)
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{
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while (loop2)
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{
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void *space = malloc(300);
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//sleep(1);
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free(space);
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}
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return 0;
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}
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typedef double (*DLL_FUNC)(double x);
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typedef int (*DLL_INT_FUNC)(int x);
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void * thread_dlopen_func (void *arg)
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{
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double number = 0.2;
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double calculatedValue = 0;
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while (loop1)
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{
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void *handle = dlopen("libmy_dll" DLL_SUFFIX, RTLD_LAZY);
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if (handle)
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{
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DLL_FUNC fptr = (DLL_FUNC)dlsym(handle, "my_dll_sin");
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calculatedValue += (*fptr)(number);
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//sleep(1);
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dlclose(handle);
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}
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else
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{
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fprintf(stderr, "error opening my_dll" DLL_SUFFIX ", thread %ld\n", GetTid());
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exit(-1);
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}
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number += 0.01;
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}
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return 0;
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}
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int main (int argc, char *argv[])
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{
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unsigned long gs_val = TLS_GET_GS_REG();
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while (1)
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{
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loop1 = true;
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loop2 = true;
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pthread_t h[NTHREADS];
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pthread_create (&h[0], 0, thread_dlopen_func, 0);
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for (unsigned long i = 1; i < NTHREADS; i++)
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{
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pthread_create (&h[i], 0, thread_func, 0);
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}
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sleep(1);
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loop1 = false;
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loop2 = false;
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for (unsigned long i = 0; i < NTHREADS; i++)
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{
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pthread_join (h[i], 0);
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}
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}
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return 0;
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}
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