#include extern int main(int argc, char *argv[], char *envp[]); void _start_c(long *p) { int argc = p[0]; char **argv = (void *)(p + 1); char **envp = (void *)(p + 3); int ret = main(argc, argv, envp); /* * Lab3: Your code here * Complete the main function */ usys_exit(ret); return; }