采用nptl库编译程序

#include <stdio.h>#include <unistd.h>#include <stdlib.h>#include <pthread.h>void *thread_function(void *arg);char message[] = "Hello World";int main() {    int res;    pthread_t a_thread;    void *thread_result;    res = pthread_create(&a_thread, NULL, thread_function, (void *)message);    if (res != 0) {        perror("Thread creation failed");        exit(EXIT_FAILURE);    }    printf("Waiting for thread to finish...\n");    res = pthread_join(a_thread, &thread_result);    if (res != 0) {        perror("Thread join failed");        exit(EXIT_FAILURE);    }    printf("Thread joined, it returned %s\n", (char *)thread_result);    printf("Message is now %s\n", message);    exit(EXIT_SUCCESS);}void *thread_function(void *arg) {    printf("thread_function is running. Argument was %s\n", (char *)arg);    sleep(3);    strcpy(message, "Bye!");    pthread_exit("Thank you for the CPU time");}

 

获取nptl版本

getconf GNU_LIBPTHREAD_VERSION

root@localhost:/home/ubuntu/chapter12# find / -name pthread.h
/usr/include/pthread.h

编译：

gcc -D_REENTRANT -I/usr/include/ thread1.c -o thread1 -L/usr/lib -lpthread

附：

Linux 线程模型的比较：LinuxThreads 和 NPTL

http://www.ibm.com/developerworks/cn/linux/l-threading.html