user: What would the C source look like for the assembly code provided here:

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x60,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movl   $0x0,-0x54(%rbp)
  mov    D1(%rip),%rax
  mov    (%rax),%eax
  lea    -0x54(%rbp),%rdx
  mov    %rdx,%rcx
  mov    $0x0,%edx
  mov    $0xffffffff,%esi
  mov    %eax,%edi
  mov    $0x0,%eax
  call   <syscall@plt>
  mov    D17(%rip),%rax
  mov    (%rax),%esi
  mov    D1(%rip),%rax
  mov    (%rax),%eax
  lea    -0x54(%rbp),%rdx
  mov    %rdx,%rcx
  mov    $0xffffffff,%edx
  mov    %eax,%edi
  mov    $0x0,%eax
  call   <syscall@plt>
  mov    D17(%rip),%rax
  mov    (%rax),%esi
  mov    D1(%rip),%rax
  mov    (%rax),%eax
  mov    $0xffffffff,%ecx
  mov    $0x0,%edx
  mov    %eax,%edi
  mov    $0x0,%eax
  call   <syscall@plt>
  mov    D17(%rip),%rax
  mov    (%rax),%eax
  lea    -0x54(%rbp),%rdx
  mov    $0x0,%esi
  mov    %eax,%edi
  call   <timer_create@plt>
  mov    D6(%rip),%rax
  mov    (%rax),%eax
  lea    -0x50(%rbp),%rdx
  mov    $0xffffffff,%esi
  mov    %eax,%edi
  mov    $0x0,%eax
  call   <syscall@plt>
  mov    -0x54(%rbp),%ecx
  mov    D6(%rip),%rax
  mov    (%rax),%eax
  mov    $0xffffffff,%edx
  mov    %ecx,%esi
  mov    %eax,%edi
  mov    $0x0,%eax
  call   <syscall@plt>
  mov    -0x54(%rbp),%eax
  lea    -0x50(%rbp),%rdx
  mov    %rdx,%rsi
  mov    %eax,%edi
  call   <timer_gettime@plt>
  movq   $0x0,-0x38(%rbp)
  movq   $0x0,-0x40(%rbp)
  movq   $0x0,-0x48(%rbp)
  movq   $0x0,-0x50(%rbp)
  mov    D38(%rip),%rax
  mov    (%rax),%eax
  lea    -0x30(%rbp),%rcx
  lea    -0x50(%rbp),%rdx
  mov    %rcx,%r8
  mov    %rdx,%rcx
  mov    $0x0,%edx
  mov    $0xffffffff,%esi
  mov    %eax,%edi
  mov    $0x0,%eax
  call   <syscall@plt>
  mov    D38(%rip),%rax
  mov    (%rax),%eax
  lea    -0x30(%rbp),%rcx
  lea    -0x50(%rbp),%rdx
  mov    %rcx,%r8
  mov    %rdx,%rcx
  mov    $0xffffffff,%edx
  mov    $0x0,%esi
  mov    %eax,%edi
  mov    $0x0,%eax
  call   <syscall@plt>
  mov    -0x54(%rbp),%esi
  mov    D38(%rip),%rax
  mov    (%rax),%eax
  lea    -0x30(%rbp),%rdx
  mov    %rdx,%r8
  mov    $0xffffffff,%ecx
  mov    $0x0,%edx
  mov    %eax,%edi
  mov    $0x0,%eax
  call   <syscall@plt>
  mov    -0x54(%rbp),%esi
  mov    D38(%rip),%rax
  mov    (%rax),%eax
  lea    -0x50(%rbp),%rdx
  mov    $0xffffffff,%r8d
  mov    %rdx,%rcx
  mov    $0x0,%edx
  mov    %eax,%edi
  mov    $0x0,%eax
  call   <syscall@plt>
  mov    -0x54(%rbp),%eax
  lea    -0x30(%rbp),%rcx
  lea    -0x50(%rbp),%rdx
  mov    $0xffffffff,%esi
  mov    %eax,%edi
  call   <timer_settime@plt>
  mov    D89(%rip),%rax
  mov    (%rax),%eax
  mov    $0xffffffff,%esi
  mov    %eax,%edi
  mov    $0x0,%eax
  call   <syscall@plt>
  mov    -0x54(%rbp),%eax
  mov    %eax,%edi
  call   <timer_getoverrun@plt>
  mov    D136(%rip),%rax
  mov    (%rax),%eax
  mov    $0xffffffff,%esi
  mov    %eax,%edi
  mov    $0x0,%eax
  call   <syscall@plt>
  mov    -0x54(%rbp),%eax
  mov    %eax,%edi
  call   <timer_delete@plt>
  mov    $0x0,%eax
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L6
  call   <__stack_chk_fail@plt>
L6:
  leave
  ret
```

assistant: ```c
int main() {
  timer_t tid = 0;
  struct itimerspec val, oval;
  syscall(__NR_timer_create, -1, NULL, &tid);
  syscall(__NR_timer_create, CLOCK_REALTIME, -1, &tid);
  syscall(__NR_timer_create, CLOCK_REALTIME, NULL, -1);
  timer_create(CLOCK_REALTIME, NULL, &tid);
  syscall(__NR_timer_gettime, -1, &val);
  syscall(__NR_timer_gettime, tid, -1);
  timer_gettime(tid, &val);
  val.it_value.tv_sec = 0;
  val.it_value.tv_nsec = 0;
  val.it_interval.tv_sec = 0;
  val.it_interval.tv_nsec = 0;
  syscall(__NR_timer_settime, -1, 0, &val, &oval);
  syscall(__NR_timer_settime, 0, -1, &val, &oval);
  syscall(__NR_timer_settime, tid, 0, -1, &oval);
  syscall(__NR_timer_settime, tid, 0, &val, -1);
  timer_settime(tid, -1, &val, &oval);
  syscall(__NR_timer_getoverrun, -1);
  timer_getoverrun(tid);
  syscall(__NR_timer_delete, -1);
  timer_delete(tid);
  return 0;
}
```