user: 下面的汇编指令对应的C源代码是什么：

```asm
<FixDatestamp>:
  endbr64
  push   %r15
  push   %r14
  mov    %esi,%r14d
  push   %r13
  push   %r12
  mov    %rdi,%r12
  push   %rbp
  push   %rbx
  sub    $0x148,%rsp
  mov    %edx,0x8(%rsp)
  lea    0x34(%rsp),%rbx
  lea    0x28(%rsp),%r15
  mov    %ecx,0xc(%rsp)
  mov    %rbx,%rdx
  lea    0x14(%rsp),%rcx
  mov    %r15,%rsi
  mov    %fs:0x28,%rax
  mov    %rax,0x138(%rsp)
  xor    %eax,%eax
  movl   $0x0,0x14(%rsp)
  call   <ReadGPSTimestamp@plt>
  mov    %rax,%rbp
  test   %rax,%rax
  je     L44
  mov    0x14(%rsp),%r13d
  test   %r13d,%r13d
  je     L43
  mov    %r14d,%edx
  mov    0x8(%rsp),%ecx
  mov    %rax,%rdi
  lea    0x40(%rsp),%r13
  lea    D39(%rip),%r14
  mov    %r14,%rsi
  call   <ConvertToUnixTime@plt>
  mov    %rbx,%r8
  mov    %r15,%rcx
  mov    $0x18,%esi
  lea    D30(%rip),%rdx
  mov    %r13,%rdi
  mov    %rax,0x18(%rsp)
  call   <snprintf@plt>
  mov    %r14,%rsi
  xor    %ecx,%ecx
  xor    %edx,%edx
  mov    %r13,%rdi
  call   <ConvertToUnixTime@plt>
  mov    0x18(%rsp),%rsi
  mov    %rax,0x20(%rsp)
  cmp    %rsi,%rax
  je     L14
  mov    0xc(%rsp),%eax
  mov    $0x1,%r13d
  test   %eax,%eax
  je     L22
L60:
  lea    0x18(%rsp),%rdi
  lea    0x60(%rsp),%r14
  call   <gmtime@plt>
  mov    $0x64,%esi
  lea    D1(%rip),%rbx
  mov    %r14,%rdi
  mov    %eax,%ecx
  mov    %rbx,%rdx
  lea    0xd0(%rsp),%r15
  call   <strftime@plt>
  lea    0x20(%rsp),%rdi
  call   <gmtime@plt>
  mov    %rbx,%rdx
  mov    $0x64,%esi
  mov    %r15,%rdi
  mov    %eax,%ecx
  call   <strftime@plt>
  mov    %r14,%r8
  mov    %r15,%rcx
  mov    %r14,%rdx
  mov    %r12,%rsi
  lea    D32(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
L86:
  mov    %rbp,%rdi
  call   <free@plt>
  mov    0x138(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L85
  add    $0x148,%rsp
  mov    %r13d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopl   0x0(%rax)
L43:
  mov    %r12,%rsi
  lea    D57(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  jmp    L86
  nopl   0x0(%rax,%rax,1)
L44:
  mov    %r12,%rsi
  lea    D33(%rip),%rdi
  xor    %eax,%eax
  xor    %r13d,%r13d
  call   <printf@plt>
  jmp    L86
  xchg   %ax,%ax
L22:
  mov    %r12,%rdi
  call   <WriteFixedDatestamp@plt>
  mov    %eax,%r13d
  jmp    L60
L14:
  mov    %r13,%rcx
  mov    %rbp,%rdx
  mov    %r12,%rsi
  xor    %eax,%eax
  lea    D21(%rip),%rdi
  mov    $0x1,%r13d
  call   <printf@plt>
  jmp    L86
L85:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: unpack_data
arguments: data_tag: D39
data_type: string
name: unpack_data
arguments: data_tag: D30
data_type: string
name: unpack_data
arguments: data_tag: D1
data_type: string
name: unpack_data
arguments: data_tag: D32
data_type: string
name: unpack_data
arguments: data_tag: D57
data_type: string
name: unpack_data
arguments: data_tag: D33
data_type: string
name: unpack_data
arguments: data_tag: D21
data_type: string

tool: D39: %d:%d:%d %d:%d:%d

tool: D30: %s %s

tool: D1: %a %b %e %T %Y UTC

tool: D32: %s: Wrong timestamp:
   Photo:     %s
   GPS:       %s
   Corrected: %s


tool: D57: %s: No GPS data.


tool: D33: %s: No EXIF data.


tool: D21: %s: Timestamp is OK: Photo %s (localtime), GPS %s (UTC).


assistant: ```c
int FixDatestamp(const char *File, int AdjustmentHours, int AdjustmentMinutes, int NoWriteExif) {
  char DateStamp[12];
  char TimeStamp[12];
  char CombinedTime[24];
  int IncludesGPS = 0;
  char *OriginalDateStamp = NULL;
  int rc = 1;
  OriginalDateStamp = ReadGPSTimestamp(File, DateStamp, TimeStamp, &IncludesGPS);
  if (OriginalDateStamp == NULL) {
    printf(("%s: No EXIF data.\n"), File);
    rc = 0;
  } else if (IncludesGPS == 0) {
    printf(("%s: No GPS data.\n"), File);
    rc = 0;
  } else {
    time_t PhotoTime = ConvertToUnixTime(OriginalDateStamp, "%d:%d:%d %d:%d:%d", AdjustmentHours, AdjustmentMinutes);
    snprintf(CombinedTime, sizeof(CombinedTime), "%s %s", DateStamp, TimeStamp);
    time_t GPSTime = ConvertToUnixTime(CombinedTime, "%d:%d:%d %d:%d:%d", 0, 0);
    if (PhotoTime != GPSTime) {
      if (!NoWriteExif) {
        rc = WriteFixedDatestamp(File, PhotoTime);
      }
      char PhotoTimeFormat[100];
      char GPSTimeFormat[100];
      strftime(PhotoTimeFormat, sizeof(PhotoTimeFormat), "%a %b %e %T %Y UTC", gmtime(&PhotoTime));
      strftime(GPSTimeFormat, sizeof(GPSTimeFormat), "%a %b %e %T %Y UTC", gmtime(&GPSTime));
      printf(("%s: Wrong timestamp:\n   Photo:     %s\n"
              "   GPS:       %s\n   Corrected: %s\n"),
             File, PhotoTimeFormat, GPSTimeFormat, PhotoTimeFormat);
    } else {
      printf(("%s: Timestamp is OK: Photo %s (localtime), GPS %s (UTC).\n"), File, OriginalDateStamp, CombinedTime);
    }
  }
  free(OriginalDateStamp);
  return rc;
}
```