user: 请从给定的汇编指令推导出C源代码:

```asm
<main>:
  endbr64
  push   %r12
  push   %rbp
  sub    $0x18,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  call   <getpid@plt>
  lea    D57(%rip),%rdi
  mov    %eax,%esi
  xor    %eax,%eax
  call   <printf@plt>
  xor    %eax,%eax
  call   <getpid@plt>
  lea    D35(%rip),%rdi
  mov    %eax,%esi
  xor    %eax,%eax
  call   <printf@plt>
  xor    %eax,%eax
  call   <fork@plt>
  test   %rax,%rax
  mov    %rax,%rbp
  mov    $0x0,%eax
  jne    L42
  call   <getpid@plt>
  lea    D113(%rip),%rdi
  movslq %eax,%rsi
  xor    %eax,%eax
  call   <printf@plt>
  xor    %edi,%edi
  call   <exit@plt>
L51:
  xor    %edx,%edx
  xor    %esi,%esi
  mov    %rbp,%rdi
  call   <waitpid@plt>
  lea    D125(%rip),%rbp
  mov    %rax,%rsi
  mov    %rbp,%rdi
  xor    %eax,%eax
  call   <printf@plt>
  xor    %edx,%edx
  xor    %esi,%esi
  mov    %r12,%rdi
  call   <waitpid@plt>
  mov    %rbp,%rdi
  mov    %rax,%rsi
  xor    %eax,%eax
  call   <printf@plt>
  xor    %eax,%eax
  call   <getpid@plt>
  lea    D40(%rip),%rdi
  mov    %eax,%esi
  xor    %eax,%eax
  call   <printf@plt>
  xor    %eax,%eax
  call   <fork@plt>
  test   %rax,%rax
  jne    L17
  call   <getpid@plt>
  lea    D5(%rip),%rdi
  movslq %eax,%rsi
  xor    %eax,%eax
  call   <printf@plt>
  xor    %edi,%edi
  call   <exit@plt>
L18:
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L62
  add    $0x18,%rsp
  xor    %eax,%eax
  pop    %rbp
  pop    %r12
  ret
L42:
  call   <fork@plt>
  mov    %rax,%r12
  test   %rax,%rax
  jne    L51
  xor    %eax,%eax
  call   <getpid@plt>
  lea    D70(%rip),%rdi
  movslq %eax,%rsi
  xor    %eax,%eax
  call   <printf@plt>
  xor    %edi,%edi
  call   <exit@plt>
  jmp    L51
L17:
  xor    %eax,%eax
  call   <fork@plt>
  mov    %rax,%rbp
  test   %rax,%rax
  je     L3
L29:
  xor    %edx,%edx
  lea    0x4(%rsp),%rsi
  mov    %rbp,%rdi
  call   <waitpid@plt>
  lea    D79(%rip),%rdi
  mov    %rax,%rsi
  xor    %eax,%eax
  call   <printf@plt>
  mov    0x4(%rsp),%esi
  lea    D53(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  xor    %eax,%eax
  call   <getpid@plt>
  lea    D8(%rip),%rdi
  mov    %eax,%esi
  xor    %eax,%eax
  call   <printf@plt>
  jmp    L18
L3:
  xor    %eax,%eax
  call   <getpid@plt>
  lea    D117(%rip),%rdi
  movslq %eax,%rsi
  xor    %eax,%eax
  call   <printf@plt>
  lea    D78(%rip),%rdi
  call   <puts@plt>
  mov    %rsp,%rsi
  lea    D106(%rip),%rdi
  call   <scanf@plt>
  mov    (%rsp),%edi
  call   <exit@plt>
  jmp    L29
L62:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: extract_symbolic_data
arguments: data_tag: D57
data_type: string
name: extract_symbolic_data
arguments: data_tag: D35
data_type: string
name: extract_symbolic_data
arguments: data_tag: D113
data_type: string
name: extract_symbolic_data
arguments: data_tag: D125
data_type: string
name: extract_symbolic_data
arguments: data_tag: D40
data_type: string
name: extract_symbolic_data
arguments: data_tag: D5
data_type: string
name: extract_symbolic_data
arguments: data_tag: D70
data_type: string
name: extract_symbolic_data
arguments: data_tag: D79
data_type: string
name: extract_symbolic_data
arguments: data_tag: D53
data_type: string
name: extract_symbolic_data
arguments: data_tag: D8
data_type: string
name: extract_symbolic_data
arguments: data_tag: D117
data_type: string
name: extract_symbolic_data
arguments: data_tag: D78
data_type: string
name: extract_symbolic_data
arguments: data_tag: D106
data_type: string

tool: D57: P10 PID:%d


tool: D35: P11 PID:%d


tool: D113: P2 PID:%d


tool: D125: rec is %d


tool: D40: P13 PID:%d


tool: D5: P4 PID:%d


tool: D70: P3 PID:%d


tool: D79: check for p5 rec is %d


tool: D53: The termination code of p5 is %x


tool: D8: P14 PID:%d

tool: D117: P5 PID:%d


tool: D78: Input a 8-bit number:

tool: D106: %d

assistant: ```c
int main() {
  pid_t pid, pidP2, pidP3, pidP4, pidP5, p, q, r;
  int num;
  int status;
  printf("P10 PID:%d\n", getpid());
  printf("P11 PID:%d\n", getpid());
  pidP2 = fork();
  if (pidP2 == 0) {
    pid = getpid();
    printf("P2 PID:%d\n", pid);
    exit(0);
  } else {
    pidP3 = fork();
    if (pidP3 == 0) {
      pid = getpid();
      printf("P3 PID:%d\n", pid);
      exit(0);
    }
  }
  p = waitpid(pidP2, (int *)0, 0);
  printf("rec is %d\n", p);
  q = waitpid(pidP3, (int *)0, 0);
  printf("rec is %d\n", q);
  printf("P13 PID:%d\n", getpid());
  pidP4 = fork();
  if (pidP4 == 0) {
    pid = getpid();
    printf("P4 PID:%d\n", pid);
    exit(0);
  } else {
    pidP5 = fork();
    if (pidP5 == 0) {
      pid = getpid();
      printf("P5 PID:%d\n", pid);
      printf("Input a 8-bit number:\n");
      scanf("%d", &num);
      exit(num);
    }
    r = waitpid(pidP5, &status, 0);
    printf("check for p5 rec is %d\n", r);
    printf("The termination code of p5 is %x\n", status);
    printf("P14 PID:%d", getpid());
  }
  return 0;
}
```