#include<stdio.h>
#include<stdlib.h>
#include<unistd.h>
#include<sys/types.h>
#include<sys/ptrace.h>
#include<sys/user.h>
#include<sys/wait.h>

#define DONT_CARE 0

int stats;
struct user_regs_struct regs;

int main()
{
  printf("procces is run ");
  pid_t pid;
  pid = fork();
  if (pid==0)
  {
    printf(" -- child\n");
    ptrace(PTRACE_TRACEME, 0, 0, 0);
    execl("./testee", "testee", NULL);
    printf("____AFTER_TRACE_CHILD____\n");
  }
  else if(pid > 0)
  {
    printf(" -- parrent\n");
    for (int i = 0; i < 4; i++)
    {
      waitpid(pid, &stats, 0);
      printf("____PARENT_STAT: %d____\n", stats);
      ptrace(PTRACE_GETREGS, pid, DONT_CARE, &regs);
      printf("rax = %llu\n", regs.rax);
      ptrace(PTRACE_SINGLESTEP, pid, DONT_CARE, DONT_CARE);
    }
    printf("____AFTER_TRACE_PARRENT____\n");
  }
  return 0;
}