#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/syscall.h>
#include <pthread.h>
#include <unistd.h>

void * thread(void *arg)
{
    sleep(1);
    printf("T self: %lu\n", pthread_self());
    printf("T tid: %lu\n", syscall(SYS_gettid));
    printf("T pid: %u\n", getpid());
    sleep(2);
    return 0;
}

int main()
{
    pthread_t tid;

    pthread_create(&tid, NULL, thread, NULL);

    printf("Started thread: %lu\n", tid);

    printf("M self: %lu\n", pthread_self());
    printf("M tid: %lu\n", syscall(SYS_gettid));
    printf("M pid: %u\n", getpid());

    pthread_join(tid, NULL);

    return 0;
}