CS 367 HW #5
Due April 29 at classtime

1. In linking, what is symbol resolution? What is symbol relocation?
2. Consider the following C program. How many times will each string ("One", "Two", "Three", "Four", "Five") be output?

   fun() {
     printf("One");
     fork();
     printf("Two");
     if (fork() == 0) {
        printf("Three");
        fork();
        printf("Four");
     }
     printf("Five");
   }
   

3. Consider the following C program. What are all of the possible outputs of the program?

   #define N 3
   int val = 10;
   void handler(sig) {
      val += 5;
      return;
   }
   int main() {
     pid_t pid;
     int i;
     signal(SIGCHLD,handler);
     for (i=0;i<N;i++) {
       if ((pid ==fork()) == 0) {
           val -= 3;
           exit(0);
       }
     }
     for (i=0;i<N;i++) {
       waitpid(-1,NULL,0);
     }
     printf("val = %d\n",val);
   }
   

4. In your text, 8.8 (p. 639)
5. In your text, 8.14 (p. 641-2)