user: 下面的汇编指令对应的C源代码是什么：

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r15
  lea    D4(%rip),%r15
  push   %r14
  lea    D36(%rip),%r14
  push   %r13
  lea    D37(%rip),%r13
  push   %r12
  mov    %r13,%rdi
  sub    $0x10,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x28(%rbp)
  xor    %eax,%eax
  call   <my_strlen@plt>
  mov    %r13,%rsi
  lea    D42(%rip),%rdi
  mov    %eax,%edx
  xor    %eax,%eax
  call   <printf@plt>
  mov    %r15,%rsi
  mov    %r13,%rdi
  call   <my_strcmp@plt>
  mov    %r15,%rdi
  mov    %r14,%rsi
  mov    %eax,%r12d
  call   <my_strcmp@plt>
  mov    %r13,%rsi
  mov    %r13,%rdi
  mov    %eax,%r15d
  call   <my_strcmp@plt>
  mov    %r15d,%edx
  mov    %r12d,%esi
  lea    D20(%rip),%rdi
  mov    %eax,%ecx
  xor    %eax,%eax
  call   <printf@plt>
  mov    %r14,%rdi
  call   <my_strlen@plt>
  mov    %r13,%rdi
  mov    %eax,%r12d
  call   <my_strlen@plt>
  lea    0x2(%r12,%rax,1),%edi
  call   <malloc@plt>
  mov    %r14,%rsi
  mov    %rax,%rdi
  mov    %rax,%r12
  call   <my_strcpy@plt>
  mov    %r14,%rdi
  call   <my_strlen@plt>
  mov    %r14,%rdi
  cltq
  movb   $0x20,(%r12,%rax,1)
  call   <my_strlen@plt>
  mov    %r13,%rsi
  cltq
  lea    0x1(%r12,%rax,1),%rdi
  call   <my_strcpy@plt>
  mov    %r12,%rdi
  call   <puts@plt>
  mov    %r12,%rdi
  call   <my_strlen@plt>
  mov    %rsp,%rcx
  cltq
  add    $0xf,%rax
  mov    %rax,%rdx
  and    $0xfffffffffffff000,%rax
  sub    %rax,%rcx
  and    $0xfffffffffffffff0,%rdx
  cmp    %rcx,%rsp
  je     L34
L41:
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  cmp    %rcx,%rsp
  jne    L41
L34:
  and    $0xfff,%edx
  sub    %rdx,%rsp
  test   %rdx,%rdx
  jne    L30
L26:
  mov    %rsp,%rdi
  mov    %r12,%rsi
  call   <my_strcpy@plt>
  mov    %rsp,%rdi
  call   <puts@plt>
  mov    -0x28(%rbp),%rax
  sub    %fs:0x28,%rax
  jne    L10
  lea    -0x20(%rbp),%rsp
  xor    %eax,%eax
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  pop    %rbp
  ret
L30:
  orq    $0x0,-0x8(%rsp,%rdx,1)
  jmp    L26
L10:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: extract_symbolic_data
arguments: data_label: D4
type: string
name: extract_symbolic_data
arguments: data_label: D36
type: string
name: extract_symbolic_data
arguments: data_label: D37
type: string
name: extract_symbolic_data
arguments: data_label: D42
type: string
name: extract_symbolic_data
arguments: data_label: D20
type: string

tool: D4: short

tool: D36: super long

tool: D37: slack

tool: D42: my_strlen(): %s is %d characters long.


tool: D20: my_strcmp(): after: %d, before: %d, and equal: %d


assistant: ```c
int main() {
  char *s1 = "slack";
  int len = my_strlen(s1);
  printf("my_strlen(): %s is %d characters long.\n", s1, len);
  char *s2 = "short";
  char *s3 = "super long";
  char *s4 = "slack";
  int cmp1 = my_strcmp(s1, s2);
  int cmp2 = my_strcmp(s2, s3);
  int cmp3 = my_strcmp(s1, s4);
  printf("my_strcmp(): after: %d, before: %d, and equal: %d\n", cmp1, cmp2, cmp3);
  char *s5 = (char *)malloc(my_strlen(s3) + my_strlen(s1) + 2);
  my_strcpy(s5, s3);
  s5[my_strlen(s3)] = ' ';
  my_strcpy(s5 + my_strlen(s3) + 1, s1);
  printf("%s\n", s5);
  char s6[my_strlen(s5)];
  my_strcpy(s6, s5);
  printf("%s\n", s6);
}
```