ylfeng/ReF-Decompile-dataset huggingface dataset:
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<main>:
  endbr64
  push   %r12
  lea    D5(%rip),%rdi
  push   %rbp
  sub    $0xc8,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0xb8(%rsp)
  xor    %eax,%eax
  mov    %rsp,%r12
  lea    0x60(%rsp),%rbp
  call   <printf@plt>
  mov    %r12,%rdi
  call   <gets@plt>
  mov    %r12,%rsi
  mov    %rbp,%rdi
  call   <copicad@plt>
  xor    %eax,%eax
  mov    %rbp,%rsi
  lea    D14(%rip),%rdi
  call   <printf@plt>
  mov    0xb8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L4
  add    $0xc8,%rsp
  xor    %eax,%eax
  pop    %rbp
  pop    %r12
  ret
L4:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: extract_symbolic_data
arguments: data_tag: D5
data_type: string
name: extract_symbolic_data
arguments: data_tag: D14
data_type: string

tool: D5: Introducir una cadena: 

tool: D14: La cadena copiada es: %s


assistant: ```c
main() {
  char cadena1[81], cadena2[81];
  printf("Introducir una cadena: ");
  gets(cadena1);
  copicad(cadena2, cadena1);
  printf("La cadena copiada es: %s\n", cadena2);
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x70,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  lea    -0x70(%rbp),%rax
  mov    %rax,%rsi
  lea    D11(%rip),%rax
  mov    %rax,%rdi
  call   <scanf@plt>
  lea    -0x70(%rbp),%rax
  mov    %rax,%rsi
  lea    D2(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  nop
  mov    -0x8(%rbp),%rax
  sub    %fs:0x28,%rax
  je     L3
  call   <__stack_chk_fail@plt>
L3:
  leave
  ret
```

tool_calls: name: unpack_data
arguments: data_tag: D11
data_type: string
name: unpack_data
arguments: data_tag: D2
data_type: string

tool: D11: %[^0-9]

tool: D2: str = %s

assistant: ```c
void main() {
  char str[100];
  scanf("%[^0-9]", str);
  printf("str = %s", str);
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<main>:
  endbr64
  push   %rbx
  sub    $0x70,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x68(%rsp)
  xor    %eax,%eax
  mov    %rsp,%rbx
  mov    %rbx,%rsi
  lea    D17(%rip),%rdi
  call   <scanf@plt>
  mov    %rbx,%rsi
  lea    D1(%rip),%rdi
  call   <printf@plt>
  mov    0x68(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L8
  add    $0x70,%rsp
  pop    %rbx
  ret
L8:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: retrieve_data
arguments: data_tag: D17
type: string
name: retrieve_data
arguments: data_tag: D1
type: string

tool: D17: %[^0-9]

tool: D1: str = %s

assistant: ```c
void main() {
  char str[100];
  scanf("%[^0-9]", str);
  printf("str = %s", str);
}
```
user: Translate the below assembly code into C programming language:

```asm
<main>:
  endbr64
  push   %rbp
  lea    D5(%rip),%rdi
  sub    $0x70,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x68(%rsp)
  xor    %eax,%eax
  mov    %rsp,%rbp
  mov    %rbp,%rsi
  call   <scanf@plt>
  mov    %rbp,%rsi
  lea    D8(%rip),%rdi
  call   <printf@plt>
  mov    0x68(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L7
  add    $0x70,%rsp
  pop    %rbp
  ret
L7:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: disassemble_data
arguments: tag: D5
datatype: string
name: disassemble_data
arguments: tag: D8
datatype: string

tool: D5: %[^0-9]

tool: D8: str = %s

assistant: ```c
void main() {
  char str[100];
  scanf("%[^0-9]", str);
  printf("str = %s", str);
}
```
user: What is the c source code of the assembly code below?

```asm
<main>:
  endbr64
  push   %rbp
  lea    D3(%rip),%rdi
  sub    $0x70,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x68(%rsp)
  xor    %eax,%eax
  mov    %rsp,%rbp
  mov    %rbp,%rsi
  call   <scanf@plt>
  mov    %rbp,%rsi
  lea    D0(%rip),%rdi
  call   <printf@plt>
  mov    0x68(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L0
  add    $0x70,%rsp
  pop    %rbp
  ret
L0:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: extract_symbolic_data
arguments: data_label: D3
type: string
name: extract_symbolic_data
arguments: data_label: D0
type: string

tool: D3: %[^0-9]

tool: D0: str = %s

assistant: ```c
void main() {
  char str[100];
  scanf("%[^0-9]", str);
  printf("str = %s", str);
}
```
user: 这段汇编代码用C语言表示是什么样的：

```asm
<hash>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  movq   $0x2a,-0x10(%rbp)
  movq   $0x0,-0x8(%rbp)
  jmp    L16
L13:
  mov    -0x8(%rbp),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movsbq %al,%rax
  mov    -0x8(%rbp),%rdx
  add    $0x1,%rdx
  imul   %rdx,%rax
  add    %rax,-0x10(%rbp)
  addq   $0x1,-0x8(%rbp)
L16:
  mov    -0x18(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  cmp    %rax,-0x8(%rbp)
  jl     L13
  mov    -0x10(%rbp),%rax
  leave
  ret
```

assistant: ```c
long hash(char *word) {
  long hesh = (long)42, i;
  for (i = 0; i < strlen(word); i++) {
    hesh += (long)(word[i] * (i + 1));
  }
  return hesh;
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<hash>:
  endbr64
  push   %rbx
  mov    %rdi,%rbx
  call   <strlen@plt>
  mov    %rax,%rsi
  mov    $0x0,%edx
  mov    $0x2a,%eax
  jmp    L17
L3:
  movsbq (%rbx,%rdx,1),%rcx
  add    $0x1,%rdx
  imul   %rdx,%rcx
  add    %rcx,%rax
L17:
  cmp    %rdx,%rsi
  jne    L3
  pop    %rbx
  ret
```

assistant: ```c
long hash(char *word) {
  long hesh = (long)42, i;
  for (i = 0; i < strlen(word); i++) {
    hesh += (long)(word[i] * (i + 1));
  }
  return hesh;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<hash>:
  endbr64
  push   %rbx
  mov    %rdi,%rbx
  call   <strlen@plt>
  xor    %edx,%edx
  mov    %rax,%rsi
  mov    $0x2a,%eax
  jmp    L4
  nopl   0x0(%rax)
L10:
  movsbq (%rbx,%rdx,1),%rcx
  add    $0x1,%rdx
  imul   %rdx,%rcx
  add    %rcx,%rax
L4:
  cmp    %rdx,%rsi
  jne    L10
  pop    %rbx
  ret
```

assistant: ```c
long hash(char *word) {
  long hesh = (long)42, i;
  for (i = 0; i < strlen(word); i++) {
    hesh += (long)(word[i] * (i + 1));
  }
  return hesh;
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<hash>:
  endbr64
  push   %rbx
  mov    %rdi,%rbx
  call   <strlen@plt>
  test   %rax,%rax
  je     L15
  mov    %rax,%rsi
  xor    %edx,%edx
  mov    $0x2a,%eax
  nopl   0x0(%rax)
L17:
  movsbq (%rbx,%rdx,1),%rcx
  add    $0x1,%rdx
  imul   %rdx,%rcx
  add    %rcx,%rax
  cmp    %rsi,%rdx
  jne    L17
  pop    %rbx
  ret
  nopw   0x0(%rax,%rax,1)
L15:
  mov    $0x2a,%eax
  pop    %rbx
  ret
```

assistant: ```c
long hash(char *word) {
  long hesh = (long)42, i;
  for (i = 0; i < strlen(word); i++) {
    hesh += (long)(word[i] * (i + 1));
  }
  return hesh;
}
```
user: What would the C source look like for the assembly code provided here?

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  mov    $0x0,%eax
  call   <__VERIFIER_nondet_int@plt>
  mov    %eax,-0x18(%rbp)
  mov    $0x0,%eax
  call   <__VERIFIER_nondet_int@plt>
  mov    %eax,-0x14(%rbp)
  cmpl   $0x0,-0x18(%rbp)
  jg     L37
  movl   $0x1,-0x18(%rbp)
L37:
  cmpl   $0x0,-0x14(%rbp)
  jg     L43
  movl   $0x1,-0x14(%rbp)
L43:
  mov    -0x14(%rbp),%eax
  cmp    -0x18(%rbp),%eax
  jle    L45
  mov    $0x0,%eax
  jmp    L9
L45:
  mov    -0x18(%rbp),%eax
  mov    %eax,%edi
  call   <alloca@plt>
  mov    %rax,-0x10(%rbp)
  mov    -0x14(%rbp),%edx
  mov    -0x10(%rbp),%rax
  mov    %edx,%esi
  mov    %rax,%rdi
  call   <cbzero@plt>
  mov    $0x0,%eax
L9:
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L8
  call   <__stack_chk_fail@plt>
L8:
  leave
  ret
```

assistant: ```c
int main() {
  int length = __VERIFIER_nondet_int();
  int n = __VERIFIER_nondet_int();
  if (length < 1) {
    length = 1;
  }
  if (n < 1) {
    n = 1;
  }
  if (n > length)
    return 0;
  char *nondetArea = (char *)alloca(length * sizeof(char));
  cbzero(nondetArea, n);
  return 0;
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %rbx
  sub    $0x18,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x18(%rbp)
  xor    %eax,%eax
  call   <__VERIFIER_nondet_int@plt>
  mov    %eax,%ebx
  mov    $0x0,%eax
  call   <__VERIFIER_nondet_int@plt>
  test   %ebx,%ebx
  mov    $0x1,%edx
  cmovg  %ebx,%edx
  mov    %edx,%edi
  test   %eax,%eax
  mov    $0x1,%edx
  mov    %edx,%ebx
  cmovg  %eax,%ebx
  cmp    %edi,%ebx
  jle    L27
L19:
  mov    -0x18(%rbp),%rax
  sub    %fs:0x28,%rax
  jne    L15
  mov    $0x0,%eax
  mov    -0x8(%rbp),%rbx
  leave
  ret
L27:
  call   <alloca@plt>
  mov    %rax,%rdi
  mov    %ebx,%esi
  call   <cbzero@plt>
  jmp    L19
L15:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int main() {
  int length = __VERIFIER_nondet_int();
  int n = __VERIFIER_nondet_int();
  if (length < 1) {
    length = 1;
  }
  if (n < 1) {
    n = 1;
  }
  if (n > length)
    return 0;
  char *nondetArea = (char *)alloca(length * sizeof(char));
  cbzero(nondetArea, n);
  return 0;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r12
  push   %rbx
  sub    $0x10,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x18(%rbp)
  xor    %eax,%eax
  call   <__VERIFIER_nondet_int@plt>
  mov    %eax,%ebx
  xor    %eax,%eax
  call   <__VERIFIER_nondet_int@plt>
  test   %ebx,%ebx
  mov    $0x1,%edx
  cmovg  %ebx,%edx
  test   %eax,%eax
  mov    %edx,%edi
  mov    $0x1,%edx
  cmovg  %eax,%edx
  cmp    %edi,%edx
  jg     L12
  mov    %edx,%r12d
  call   <alloca@plt>
  mov    %r12d,%esi
  mov    %rax,%rdi
  call   <cbzero@plt>
L12:
  mov    -0x18(%rbp),%rax
  sub    %fs:0x28,%rax
  jne    L10
  lea    -0x10(%rbp),%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %r12
  pop    %rbp
  ret
L10:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int main() {
  int length = __VERIFIER_nondet_int();
  int n = __VERIFIER_nondet_int();
  if (length < 1) {
    length = 1;
  }
  if (n < 1) {
    n = 1;
  }
  if (n > length)
    return 0;
  char *nondetArea = (char *)alloca(length * sizeof(char));
  cbzero(nondetArea, n);
  return 0;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r12
  push   %rbx
  sub    $0x10,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x18(%rbp)
  xor    %eax,%eax
  call   <__VERIFIER_nondet_int@plt>
  mov    %eax,%ebx
  xor    %eax,%eax
  call   <__VERIFIER_nondet_int@plt>
  test   %ebx,%ebx
  mov    $0x1,%edx
  cmovg  %ebx,%edx
  test   %eax,%eax
  mov    %edx,%edi
  mov    $0x1,%edx
  cmovg  %eax,%edx
  cmp    %edi,%edx
  jg     L5
  mov    %edx,%r12d
  call   <alloca@plt>
  mov    %r12d,%esi
  mov    %rax,%rdi
  call   <cbzero@plt>
L5:
  mov    -0x18(%rbp),%rax
  sub    %fs:0x28,%rax
  jne    L11
  lea    -0x10(%rbp),%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %r12
  pop    %rbp
  ret
L11:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int main() {
  int length = __VERIFIER_nondet_int();
  int n = __VERIFIER_nondet_int();
  if (length < 1) {
    length = 1;
  }
  if (n < 1) {
    n = 1;
  }
  if (n > length)
    return 0;
  char *nondetArea = (char *)alloca(length * sizeof(char));
  cbzero(nondetArea, n);
  return 0;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<set_brightness>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %edi,-0x14(%rbp)
  movl   $0x0,-0x8(%rbp)
  mov    $0x0,%eax
  call   <get_max_brightness@plt>
  mov    %eax,-0x4(%rbp)
  mov    -0x14(%rbp),%eax
  cmp    -0x8(%rbp),%eax
  jge    L19
  mov    -0x8(%rbp),%eax
  mov    %eax,-0x14(%rbp)
L19:
  mov    -0x14(%rbp),%eax
  cmp    -0x4(%rbp),%eax
  jle    L3
  mov    -0x4(%rbp),%eax
  mov    %eax,-0x14(%rbp)
L3:
  mov    -0x14(%rbp),%eax
  mov    %eax,%esi
  lea    D0(%rip),%rax
  mov    %rax,%rdi
  call   <write_int@plt>
  nop
  leave
  ret
```

tool_calls: name: extract_symbolic_data
arguments: label: D0
datatype: string

tool: D0: /sys/class/leds/smc::kbd_backlight/brightness

assistant: ```c
void set_brightness(int brightness) {
  int min_brightness = 0, max_brightness = get_max_brightness();
  if (brightness < min_brightness)
    brightness = min_brightness;
  if (brightness > max_brightness)
    brightness = max_brightness;
  write_int("/sys/class/leds/smc::kbd_backlight/brightness", brightness);
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<set_brightness>:
  endbr64
  push   %rbx
  mov    %edi,%ebx
  mov    $0x0,%eax
  call   <get_max_brightness@plt>
  test   %ebx,%ebx
  mov    $0x0,%edx
  cmovs  %edx,%ebx
  cmp    %eax,%ebx
  cmovle %ebx,%eax
  mov    %eax,%esi
  lea    D4(%rip),%rdi
  call   <write_int@plt>
  pop    %rbx
  ret
```

tool_calls: name: parse_data
arguments: tag: D4
type_infered: string

tool: D4: /sys/class/leds/smc::kbd_backlight/brightness

assistant: ```c
void set_brightness(int brightness) {
  int min_brightness = 0, max_brightness = get_max_brightness();
  if (brightness < min_brightness)
    brightness = min_brightness;
  if (brightness > max_brightness)
    brightness = max_brightness;
  write_int("/sys/class/leds/smc::kbd_backlight/brightness", brightness);
}
```
user: Translate the below assembly code into C programming language:

```asm
<set_brightness>:
  endbr64
  push   %rbx
  xor    %eax,%eax
  mov    %edi,%ebx
  call   <get_max_brightness@plt>
  xor    %edx,%edx
  test   %ebx,%ebx
  lea    D3(%rip),%rdi
  cmovs  %edx,%ebx
  cmp    %eax,%ebx
  cmovle %ebx,%eax
  pop    %rbx
  mov    %eax,%esi
  jmp    1060 <write_int@plt>
```

tool_calls: name: disassemble_data
arguments: data_label: D3
data_type: string

tool: D3: /sys/class/leds/smc::kbd_backlight/brightness

assistant: ```c
void set_brightness(int brightness) {
  int min_brightness = 0, max_brightness = get_max_brightness();
  if (brightness < min_brightness)
    brightness = min_brightness;
  if (brightness > max_brightness)
    brightness = max_brightness;
  write_int("/sys/class/leds/smc::kbd_backlight/brightness", brightness);
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<set_brightness>:
  endbr64
  push   %rbx
  xor    %eax,%eax
  mov    %edi,%ebx
  call   <get_max_brightness@plt>
  xor    %edx,%edx
  test   %ebx,%ebx
  lea    D1(%rip),%rdi
  cmovs  %edx,%ebx
  cmp    %eax,%ebx
  cmovle %ebx,%eax
  pop    %rbx
  mov    %eax,%esi
  jmp    1060 <write_int@plt>
```

tool_calls: name: extract_symbolic_data
arguments: data_label: D1
type_infered: string

tool: D1: /sys/class/leds/smc::kbd_backlight/brightness

assistant: ```c
void set_brightness(int brightness) {
  int min_brightness = 0, max_brightness = get_max_brightness();
  if (brightness < min_brightness)
    brightness = min_brightness;
  if (brightness > max_brightness)
    brightness = max_brightness;
  write_int("/sys/class/leds/smc::kbd_backlight/brightness", brightness);
}
```
user: What is the c source code of the assembly code below:

```asm
<xreadlink>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x418,%rsp
  mov    %rdi,%r12
  mov    %fs:0x28,%rax
  mov    %rax,0x408(%rsp)
  xor    %eax,%eax
  mov    $0x400,%ebx
  mov    %rsp,%rbp
  mov    %rsp,%r13
  jmp    L98
L133:
  mov    %rsp,%rax
  cmp    %rax,%rbp
  je     L95
  mov    D5(%rip),%rbx
  mov    (%rbx),%r12d
  mov    %rbp,%rdi
  call   <free@plt>
  mov    %r12d,(%rbx)
  mov    $0x0,%ebp
L51:
  mov    0x408(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L99
  mov    %rbp,%rax
  add    $0x418,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
L125:
  lea    0x1(%rax),%r12
  movb   $0x0,0x0(%rbp,%rax,1)
  mov    %rsp,%rax
  cmp    %rax,%rbp
  je     L128
  cmp    %rbx,%r12
  jae    L51
  mov    %r12,%rsi
  mov    %rbp,%rdi
  call   <realloc@plt>
  test   %rax,%rax
  cmovne %rax,%rbp
  jmp    L51
L128:
  mov    %r12,%rdi
  call   <xmalloc@plt>
  mov    %rax,%rbp
  mov    %rsp,%rsi
  mov    %r12,%rdx
  mov    %rax,%rdi
  call   <memcpy@plt>
  jmp    L51
L15:
  add    %rbx,%rbx
  js     L71
L25:
  mov    %rbx,%rdi
  call   <xmalloc@plt>
  mov    %rax,%rbp
L98:
  mov    %rbx,%rdx
  mov    %rbp,%rsi
  mov    %r12,%rdi
  call   <readlink@plt>
  test   %rax,%rax
  js     L133
  cmp    %rbx,%rax
  jb     L125
  cmp    %r13,%rbp
  je     L15
  mov    %rbp,%rdi
  call   <free@plt>
  jmp    L15
L71:
  mov    $0x0,%eax
  call   <xalloc_die@plt>
  jmp    L25
L95:
  mov    $0x0,%ebp
  jmp    L51
L99:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
char *xreadlink(char const *filename) {
  char initial_buf[1024];
  char *buffer = initial_buf;
  size_t buf_size = sizeof(initial_buf);
  while (1) {
    ssize_t link_length = readlink(filename, buffer, buf_size);
    if (link_length < 0) {
      if (buffer != initial_buf) {
        int saved_errno = errno;
        free(buffer);
        errno = saved_errno;
      }
      return NULL;
    }
    if ((size_t)link_length < buf_size) {
      buffer[link_length++] = '\0';
      if (buffer == initial_buf) {
        buffer = (char *)xmalloc(link_length);
        memcpy(buffer, initial_buf, link_length);
      } else {
        if ((size_t)link_length < buf_size) {
          char *smaller_buffer = (char *)realloc(buffer, link_length);
          if (smaller_buffer != NULL)
            buffer = smaller_buffer;
        }
      }
      return buffer;
    }
    if (buffer != initial_buf)
      free(buffer);
    buf_size *= 2;
    if (((ssize_t)(((size_t)-1) / 2)) < buf_size || (((size_t)-1) / 2 < ((ssize_t)(((size_t)-1) / 2)) && buf_size == 0))
      xalloc_die();
    buffer = (char *)xmalloc(buf_size);
  }
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<xreadlink>:
  endbr64
  push   %r13
  push   %r12
  mov    %rdi,%r12
  push   %rbp
  push   %rbx
  mov    $0x400,%ebx
  sub    $0x418,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x408(%rsp)
  xor    %eax,%eax
  mov    %rsp,%r13
  mov    %r13,%rbp
  jmp    L33
  nopl   0x0(%rax)
L7:
  mov    %rbx,%rdi
  call   <xmalloc@plt>
  mov    %rax,%rbp
L33:
  mov    %rbx,%rdx
  mov    %rbp,%rsi
  mov    %r12,%rdi
  call   <readlink@plt>
  test   %rax,%rax
  js     L44
  cmp    %rbx,%rax
  jb     L61
  cmp    %r13,%rbp
  je     L120
  mov    %rbp,%rdi
  call   <free@plt>
L120:
  add    %rbx,%rbx
  jns    L7
  xor    %eax,%eax
  call   <xalloc_die@plt>
  jmp    L7
  cs nopw 0x0(%rax,%rax,1)
L44:
  cmp    %r13,%rbp
  je     L32
  mov    D2(%rip),%rbx
  mov    %rbp,%rdi
  xor    %ebp,%ebp
  mov    (%rbx),%r12d
  call   <free@plt>
  mov    %r12d,(%rbx)
L42:
  mov    0x408(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L108
  add    $0x418,%rsp
  mov    %rbp,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
L32:
  xor    %ebp,%ebp
  jmp    L42
  nopl   0x0(%rax)
L61:
  movb   $0x0,0x0(%rbp,%rax,1)
  lea    0x1(%rax),%r12
  cmp    %r13,%rbp
  je     L126
  cmp    %r12,%rbx
  jbe    L42
  mov    %rbp,%rdi
  mov    %r12,%rsi
  call   <realloc@plt>
  test   %rax,%rax
  cmovne %rax,%rbp
  jmp    L42
L126:
  mov    %r12,%rdi
  call   <xmalloc@plt>
  mov    %r12,%rdx
  mov    %r13,%rsi
  mov    %rax,%rdi
  mov    %rax,%rbp
  call   <memcpy@plt>
  jmp    L42
L108:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
char *xreadlink(char const *filename) {
  char initial_buf[1024];
  char *buffer = initial_buf;
  size_t buf_size = sizeof(initial_buf);
  while (1) {
    ssize_t link_length = readlink(filename, buffer, buf_size);
    if (link_length < 0) {
      if (buffer != initial_buf) {
        int saved_errno = errno;
        free(buffer);
        errno = saved_errno;
      }
      return NULL;
    }
    if ((size_t)link_length < buf_size) {
      buffer[link_length++] = '\0';
      if (buffer == initial_buf) {
        buffer = (char *)xmalloc(link_length);
        memcpy(buffer, initial_buf, link_length);
      } else {
        if ((size_t)link_length < buf_size) {
          char *smaller_buffer = (char *)realloc(buffer, link_length);
          if (smaller_buffer != NULL)
            buffer = smaller_buffer;
        }
      }
      return buffer;
    }
    if (buffer != initial_buf)
      free(buffer);
    buf_size *= 2;
    if (((ssize_t)(((size_t)-1) / 2)) < buf_size || (((size_t)-1) / 2 < ((ssize_t)(((size_t)-1) / 2)) && buf_size == 0))
      xalloc_die();
    buffer = (char *)xmalloc(buf_size);
  }
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<xreadlink>:
  endbr64
  push   %r13
  push   %r12
  mov    %rdi,%r12
  push   %rbp
  push   %rbx
  mov    $0x400,%ebx
  sub    $0x418,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x408(%rsp)
  xor    %eax,%eax
  mov    %rsp,%r13
  mov    %r13,%rbp
  jmp    L65
  nopl   0x0(%rax)
L128:
  mov    %rbx,%rdi
  call   <xmalloc@plt>
  mov    %rax,%rbp
L65:
  mov    %rbx,%rdx
  mov    %rbp,%rsi
  mov    %r12,%rdi
  call   <readlink@plt>
  test   %rax,%rax
  js     L4
  cmp    %rbx,%rax
  jb     L72
  cmp    %r13,%rbp
  je     L94
  mov    %rbp,%rdi
  call   <free@plt>
L94:
  add    %rbx,%rbx
  jns    L128
  xor    %eax,%eax
  call   <xalloc_die@plt>
  jmp    L128
  cs nopw 0x0(%rax,%rax,1)
L4:
  cmp    %r13,%rbp
  je     L1
  mov    D0(%rip),%rbx
  mov    %rbp,%rdi
  xor    %ebp,%ebp
  mov    (%rbx),%r12d
  call   <free@plt>
  mov    %r12d,(%rbx)
L93:
  mov    0x408(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L97
  add    $0x418,%rsp
  mov    %rbp,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
L1:
  xor    %ebp,%ebp
  jmp    L93
  nopl   0x0(%rax)
L72:
  movb   $0x0,0x0(%rbp,%rax,1)
  lea    0x1(%rax),%r12
  cmp    %r13,%rbp
  je     L115
  cmp    %r12,%rbx
  jbe    L93
  mov    %rbp,%rdi
  mov    %r12,%rsi
  call   <realloc@plt>
  test   %rax,%rax
  cmovne %rax,%rbp
  jmp    L93
L115:
  mov    %r12,%rdi
  call   <xmalloc@plt>
  mov    %r12,%rdx
  mov    %r13,%rsi
  mov    %rax,%rdi
  mov    %rax,%rbp
  call   <memcpy@plt>
  jmp    L93
L97:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
char *xreadlink(char const *filename) {
  char initial_buf[1024];
  char *buffer = initial_buf;
  size_t buf_size = sizeof(initial_buf);
  while (1) {
    ssize_t link_length = readlink(filename, buffer, buf_size);
    if (link_length < 0) {
      if (buffer != initial_buf) {
        int saved_errno = errno;
        free(buffer);
        errno = saved_errno;
      }
      return NULL;
    }
    if ((size_t)link_length < buf_size) {
      buffer[link_length++] = '\0';
      if (buffer == initial_buf) {
        buffer = (char *)xmalloc(link_length);
        memcpy(buffer, initial_buf, link_length);
      } else {
        if ((size_t)link_length < buf_size) {
          char *smaller_buffer = (char *)realloc(buffer, link_length);
          if (smaller_buffer != NULL)
            buffer = smaller_buffer;
        }
      }
      return buffer;
    }
    if (buffer != initial_buf)
      free(buffer);
    buf_size *= 2;
    if (((ssize_t)(((size_t)-1) / 2)) < buf_size || (((size_t)-1) / 2 < ((ssize_t)(((size_t)-1) / 2)) && buf_size == 0))
      xalloc_die();
    buffer = (char *)xmalloc(buf_size);
  }
}
```