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
<parse_ram_timings>:
  endbr64
  push   %rbp
  push   %rbx
  sub    $0x18,%rsp
  mov    %rdi,%rbx
  mov    %rsi,%rbp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  lea    0x4(%rsi),%rcx
  lea    0x4(%rsp),%rdx
  sub    $0x8,%rsp
  lea    0x18(%rsi),%rax
  push   %rax
  lea    0x14(%rsi),%rax
  push   %rax
  lea    0x10(%rsi),%rax
  push   %rax
  lea    0xc(%rsi),%r9
  lea    0x8(%rsi),%r8
  lea    D25(%rip),%rsi
  call   <sscanf@plt>
  add    $0x20,%rsp
  cmp    $0x7,%eax
  jne    L22
  movss  0x4(%rsp),%xmm0
  ucomiss D16(%rip),%xmm0
  jp     L18
  mov    $0x1,%eax
  jne    L18
L91:
  mov    %eax,0x0(%rbp)
  mov    %rbx,%rax
  mov    $0x0,%edx
L38:
  movzbl (%rax),%ecx
  test   %cl,%cl
  je     L83
  cmp    $0x2c,%cl
  sete   %cl
  movzbl %cl,%ecx
  add    %ecx,%edx
  add    $0x1,%rax
  cmp    $0x5,%edx
  jle    L38
  cmp    $0x6,%edx
  jne    L95
  movzbl (%rax),%esi
  lea    -0x30(%rsi),%edx
  cmp    $0x9,%dl
  ja     L183
L50:
  add    $0x1,%rax
  movzbl (%rax),%edi
  lea    -0x30(%rdi),%edx
  cmp    $0x9,%dl
  jbe    L50
L183:
  mov    %eax,%ecx
  sub    %ebx,%ecx
L100:
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L52
  mov    %ecx,%eax
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  ret
L18:
  ucomiss D4(%rip),%xmm0
  jp     L146
  mov    $0x2,%eax
  je     L91
L146:
  ucomiss D31(%rip),%xmm0
  jp     L77
  jne    L77
  mov    $0x3,%eax
  jmp    L91
L22:
  mov    $0xffffffff,%ecx
  jmp    L100
L77:
  mov    $0xffffffff,%ecx
  jmp    L100
L95:
  mov    $0xffffffff,%ecx
  jmp    L100
L83:
  mov    $0xffffffff,%ecx
  cmp    $0x6,%edx
  jne    L100
  jmp    L183
L52:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: retrieve_data
arguments: label: D25
datatype: string
name: retrieve_data
arguments: label: D16
datatype: byte[4]
name: retrieve_data
arguments: label: D4
datatype: f32
name: retrieve_data
arguments: label: D31
datatype: byte[4]

tool: D25: %f,%d,%d,%d,%d,%d,%d

tool: {"D16": [0x00,0x00,0x00,0x40]}

tool: D4: 2.5

tool: {"D31": [0x00,0x00,0x40,0x40]}

assistant: ```c
int parse_ram_timings(const char *str, void *data) {
  int *ram_timings = data;
  const char *p = str;
  int ret, c;
  float cas;
  ret = sscanf(p, "%f,%d,%d,%d,%d,%d,%d", &cas, &ram_timings[1], &ram_timings[2], &ram_timings[3], &ram_timings[4], &ram_timings[5], &ram_timings[6]);
  if (ret != 7)
    return -1;
  if (cas == 2)
    ram_timings[0] = 1;
  else if (cas == 2.5)
    ram_timings[0] = 2;
  else if (cas == 3)
    ram_timings[0] = 3;
  else
    return -1;
  for (c = 0; c < 6 && *p != 0; p++)
    if (*p == ',')
      c++;
  if (c != 6)
    return -1;
  while ('0' <= *p && *p <= '9')
    p++;
  return p - str;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<parse_ram_timings>:
  endbr64
  push   %rbp
  lea    0x4(%rsi),%rcx
  lea    0xc(%rsi),%r9
  mov    %rdi,%rbp
  push   %rbx
  lea    0x8(%rsi),%r8
  mov    %rsi,%rbx
  sub    $0x18,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  lea    0x4(%rsp),%rdx
  lea    0x18(%rsi),%rax
  sub    $0x8,%rsp
  push   %rax
  lea    0x14(%rsi),%rax
  push   %rax
  lea    0x10(%rsi),%rax
  lea    D20(%rip),%rsi
  push   %rax
  call   <sscanf@plt>
  add    $0x20,%rsp
  cmp    $0x7,%eax
  jne    L1
  movss  0x4(%rsp),%xmm0
  ucomiss D17(%rip),%xmm0
  jp     L125
  mov    $0x1,%eax
  jne    L125
L38:
  mov    %eax,(%rbx)
  xor    %edx,%edx
  mov    %rbp,%rax
  nopw   0x0(%rax,%rax,1)
L11:
  movzbl (%rax),%ecx
  test   %cl,%cl
  je     L1
  cmp    $0x2c,%cl
  sete   %cl
  add    $0x1,%rax
  movzbl %cl,%ecx
  add    %ecx,%edx
  cmp    $0x6,%edx
  jne    L11
  movzbl (%rax),%esi
  lea    -0x30(%rsi),%edx
  cmp    $0x9,%dl
  ja     L109
  nopw   0x0(%rax,%rax,1)
L78:
  movzbl 0x1(%rax),%edi
  add    $0x1,%rax
  lea    -0x30(%rdi),%edx
  cmp    $0x9,%dl
  jbe    L78
L109:
  sub    %ebp,%eax
L135:
  mov    0x8(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L101
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  ret
  nopl   0x0(%rax)
L125:
  ucomiss D27(%rip),%xmm0
  jp     L59
  mov    $0x2,%eax
  je     L38
L59:
  ucomiss D3(%rip),%xmm0
  jp     L1
  jne    L1
  mov    $0x3,%eax
  jmp    L38
  nopl   (%rax)
L1:
  mov    $0xffffffff,%eax
  jmp    L135
L101:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: disassemble_data
arguments: label: D20
type: string
name: disassemble_data
arguments: label: D17
type: byte[4]
name: disassemble_data
arguments: label: D27
type: f32
name: disassemble_data
arguments: label: D3
type: byte[4]

tool: D20: %f,%d,%d,%d,%d,%d,%d

tool: {"D17": [0x00,0x00,0x00,0x40]}

tool: D27: 2.5

tool: {"D3": [0x00,0x00,0x40,0x40]}

assistant: ```c
int parse_ram_timings(const char *str, void *data) {
  int *ram_timings = data;
  const char *p = str;
  int ret, c;
  float cas;
  ret = sscanf(p, "%f,%d,%d,%d,%d,%d,%d", &cas, &ram_timings[1], &ram_timings[2], &ram_timings[3], &ram_timings[4], &ram_timings[5], &ram_timings[6]);
  if (ret != 7)
    return -1;
  if (cas == 2)
    ram_timings[0] = 1;
  else if (cas == 2.5)
    ram_timings[0] = 2;
  else if (cas == 3)
    ram_timings[0] = 3;
  else
    return -1;
  for (c = 0; c < 6 && *p != 0; p++)
    if (*p == ',')
      c++;
  if (c != 6)
    return -1;
  while ('0' <= *p && *p <= '9')
    p++;
  return p - str;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<parse_ram_timings>:
  endbr64
  push   %rbp
  lea    0x4(%rsi),%rcx
  lea    0xc(%rsi),%r9
  mov    %rdi,%rbp
  push   %rbx
  lea    0x8(%rsi),%r8
  mov    %rsi,%rbx
  sub    $0x18,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  lea    0x4(%rsp),%rdx
  lea    0x18(%rsi),%rax
  sub    $0x8,%rsp
  push   %rax
  lea    0x14(%rsi),%rax
  push   %rax
  lea    0x10(%rsi),%rax
  lea    D13(%rip),%rsi
  push   %rax
  call   <sscanf@plt>
  add    $0x20,%rsp
  cmp    $0x7,%eax
  jne    L82
  movss  0x4(%rsp),%xmm0
  ucomiss D10(%rip),%xmm0
  jp     L126
  mov    $0x1,%eax
  jne    L126
L118:
  mov    %eax,(%rbx)
  xor    %edx,%edx
  mov    %rbp,%rax
  nopw   0x0(%rax,%rax,1)
L135:
  movzbl (%rax),%ecx
  test   %cl,%cl
  je     L82
  cmp    $0x2c,%cl
  sete   %cl
  add    $0x1,%rax
  movzbl %cl,%ecx
  add    %ecx,%edx
  cmp    $0x6,%edx
  jne    L135
  movzbl (%rax),%esi
  lea    -0x30(%rsi),%edx
  cmp    $0x9,%dl
  ja     L107
  nopw   0x0(%rax,%rax,1)
L23:
  movzbl 0x1(%rax),%edi
  add    $0x1,%rax
  lea    -0x30(%rdi),%edx
  cmp    $0x9,%dl
  jbe    L23
L107:
  sub    %ebp,%eax
L20:
  mov    0x8(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L37
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  ret
  nopl   0x0(%rax)
L126:
  ucomiss D34(%rip),%xmm0
  jp     L133
  mov    $0x2,%eax
  je     L118
L133:
  ucomiss D8(%rip),%xmm0
  jp     L82
  jne    L82
  mov    $0x3,%eax
  jmp    L118
  nopl   (%rax)
L82:
  mov    $0xffffffff,%eax
  jmp    L20
L37:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: parse_data
arguments: tag: D13
type: string
name: parse_data
arguments: tag: D10
type: byte[4]
name: parse_data
arguments: tag: D34
type: f32
name: parse_data
arguments: tag: D8
type: byte[4]

tool: D13: %f,%d,%d,%d,%d,%d,%d

tool: {"D10": [0x00,0x00,0x00,0x40]}

tool: D34: 2.5

tool: {"D8": [0x00,0x00,0x40,0x40]}

assistant: ```c
int parse_ram_timings(const char *str, void *data) {
  int *ram_timings = data;
  const char *p = str;
  int ret, c;
  float cas;
  ret = sscanf(p, "%f,%d,%d,%d,%d,%d,%d", &cas, &ram_timings[1], &ram_timings[2], &ram_timings[3], &ram_timings[4], &ram_timings[5], &ram_timings[6]);
  if (ret != 7)
    return -1;
  if (cas == 2)
    ram_timings[0] = 1;
  else if (cas == 2.5)
    ram_timings[0] = 2;
  else if (cas == 3)
    ram_timings[0] = 3;
  else
    return -1;
  for (c = 0; c < 6 && *p != 0; p++)
    if (*p == ',')
      c++;
  if (c != 6)
    return -1;
  while ('0' <= *p && *p <= '9')
    p++;
  return p - str;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<fpattern_isvalid>:
  endbr64
  mov    %rdi,%rdx
  test   %rdi,%rdi
  je     L28
  movzbl (%rdi),%eax
  test   %al,%al
  je     L144
  mov    $0x0,%ecx
  mov    $0x7d,%r9d
  mov    $0x5d,%r8d
  jmp    L210
L184:
  mov    %r9d,%edi
  cmp    $0x7b,%al
  je     L137
L36:
  add    $0x1,%ecx
  movslq %ecx,%rax
  movzbl (%rdx,%rax,1),%eax
  test   %al,%al
  je     L167
L210:
  cmp    $0x5c,%al
  je     L106
  jg     L184
  cmp    $0x21,%al
  je     L143
  cmp    $0x5b,%al
  jne    L36
  mov    %r8d,%edi
L137:
  lea    0x1(%rcx),%eax
  movslq %eax,%rsi
  cmpb   $0x21,(%rdx,%rsi,1)
  jne    L198
  lea    0x2(%rcx),%eax
  jmp    L198
L88:
  lea    0x2(%rax),%ecx
  movslq %ecx,%rsi
  cmpb   $0x5c,(%rdx,%rsi,1)
  je     L69
L14:
  movslq %ecx,%rax
  cmpb   $0x0,(%rdx,%rax,1)
  je     L123
  lea    0x1(%rcx),%eax
L214:
  movslq %eax,%rcx
  cmpb   $0x0,(%rdx,%rcx,1)
  je     L40
L198:
  movslq %eax,%rcx
  movzbl (%rdx,%rcx,1),%ecx
  cmp    %dil,%cl
  je     L13
  cmp    $0x5c,%cl
  sete   %cl
  movzbl %cl,%ecx
  add    %ecx,%eax
  movslq %eax,%rcx
  cmpb   $0x0,(%rdx,%rcx,1)
  je     L116
  lea    0x1(%rax),%ecx
  movslq %ecx,%rsi
  cmpb   $0x2d,(%rdx,%rsi,1)
  je     L88
  mov    %ecx,%eax
  jmp    L214
L69:
  lea    0x3(%rax),%ecx
  jmp    L14
L13:
  mov    %eax,%ecx
  jmp    L36
L106:
  add    $0x1,%ecx
  movslq %ecx,%rax
  cmpb   $0x0,(%rdx,%rax,1)
  jne    L36
  mov    $0x0,%eax
  ret
L143:
  add    $0x1,%ecx
  movslq %ecx,%rax
  cmpb   $0x0,(%rdx,%rax,1)
  jne    L36
  mov    $0x0,%eax
  ret
L167:
  mov    $0x1,%eax
  ret
L28:
  mov    $0x0,%eax
  ret
L144:
  mov    $0x1,%eax
  ret
L116:
  mov    $0x0,%eax
  ret
L123:
  mov    $0x0,%eax
  ret
L40:
  mov    $0x0,%eax
  ret
```

assistant: ```c
int fpattern_isvalid(const char *pat) {
  int len;
  char close;
  if (pat == ((void *)0))
    return (0);
  for (len = 0; pat[len] != '\0'; len++) {
    switch (pat[len]) {
    case '[':
    case '{':
      close = (char)((pat[len] == '[') ? ']' : '}');
      len++;
      if (pat[len] == '!')
        len++;
      while (pat[len] != close) {
        if (pat[len] == '\\')
          len++;
        if (pat[len] == '\0')
          return (0);
        len++;
        if (pat[len] == '-') {
          len++;
          if (pat[len] == '\\')
            len++;
          if (pat[len] == '\0')
            return (0);
          len++;
        }
        if (pat[len] == '\0')
          return (0);
      }
      break;
    case '\\':
      len++;
      if (pat[len] == '\0')
        return (0);
      break;
    case '!':
      len++;
      if (pat[len] == '\0')
        return (0);
      break;
    default:
      break;
    }
  }
  return (1);
}
```
user: 下面的汇编指令对应的C源代码是什么：

```asm
<fpattern_isvalid>:
  endbr64
  mov    %rdi,%rcx
  test   %rdi,%rdi
  je     L137
  movzbl (%rdi),%esi
  test   %sil,%sil
  je     L195
  xor    %r8d,%r8d
  jmp    L89
  nopl   0x0(%rax)
L65:
  test   %al,%al
  je     L137
  lea    0x2(%r8),%edi
L194:
  movslq %edi,%rax
  movzbl (%rcx,%rax,1),%esi
  mov    %rax,%r8
  test   %sil,%sil
  je     L195
L89:
  lea    0x1(%r8),%edi
  movslq %edi,%rax
  mov    %rax,%rdx
  movzbl (%rcx,%rax,1),%eax
  cmp    $0x5c,%sil
  je     L65
  jg     L162
  cmp    $0x21,%sil
  je     L65
  cmp    $0x5b,%sil
  jne    L194
  mov    $0x5d,%edi
L215:
  cmp    $0x21,%al
  jne    L211
  lea    0x2(%r8),%edx
  movslq %edx,%rax
  movzbl (%rcx,%rax,1),%eax
  cmp    %al,%dil
  jne    L174
  cs nopw 0x0(%rax,%rax,1)
L203:
  lea    0x1(%rdx),%edi
  jmp    L194
  nopl   (%rax)
L160:
  mov    %esi,%edx
  test   %al,%al
  je     L137
L211:
  cmp    %al,%dil
  je     L203
L174:
  cmp    $0x5c,%al
  jne    L86
  add    $0x1,%edx
  movslq %edx,%rax
  movzbl (%rcx,%rax,1),%eax
L86:
  test   %al,%al
  je     L137
  lea    0x1(%rdx),%esi
  movslq %esi,%rax
  movzbl (%rcx,%rax,1),%eax
  cmp    $0x2d,%al
  jne    L160
  lea    0x2(%rdx),%eax
  movslq %eax,%rsi
  movzbl (%rcx,%rsi,1),%esi
  cmp    $0x5c,%sil
  jne    L178
  lea    0x3(%rdx),%eax
  movslq %eax,%rdx
  movzbl (%rcx,%rdx,1),%esi
L178:
  test   %sil,%sil
  je     L137
  lea    0x1(%rax),%edx
  movslq %edx,%rax
  movzbl (%rcx,%rax,1),%eax
  test   %al,%al
  jne    L211
L137:
  xor    %eax,%eax
  ret
  nopl   0x0(%rax,%rax,1)
L162:
  cmp    $0x7b,%sil
  jne    L194
  mov    $0x7d,%edi
  jmp    L215
L195:
  mov    $0x1,%eax
  ret
```

assistant: ```c
int fpattern_isvalid(const char *pat) {
  int len;
  char close;
  if (pat == ((void *)0))
    return (0);
  for (len = 0; pat[len] != '\0'; len++) {
    switch (pat[len]) {
    case '[':
    case '{':
      close = (char)((pat[len] == '[') ? ']' : '}');
      len++;
      if (pat[len] == '!')
        len++;
      while (pat[len] != close) {
        if (pat[len] == '\\')
          len++;
        if (pat[len] == '\0')
          return (0);
        len++;
        if (pat[len] == '-') {
          len++;
          if (pat[len] == '\\')
            len++;
          if (pat[len] == '\0')
            return (0);
          len++;
        }
        if (pat[len] == '\0')
          return (0);
      }
      break;
    case '\\':
      len++;
      if (pat[len] == '\0')
        return (0);
      break;
    case '!':
      len++;
      if (pat[len] == '\0')
        return (0);
      break;
    default:
      break;
    }
  }
  return (1);
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<fpattern_isvalid>:
  endbr64
  mov    %rdi,%rcx
  test   %rdi,%rdi
  je     L87
  movzbl (%rdi),%esi
  test   %sil,%sil
  je     L115
  xor    %r8d,%r8d
  jmp    L38
  nopl   0x0(%rax)
L89:
  test   %al,%al
  je     L87
  lea    0x2(%r8),%edi
L66:
  movslq %edi,%rax
  movzbl (%rcx,%rax,1),%esi
  mov    %rax,%r8
  test   %sil,%sil
  je     L115
L38:
  lea    0x1(%r8),%edi
  movslq %edi,%rax
  mov    %rax,%rdx
  movzbl (%rcx,%rax,1),%eax
  cmp    $0x5c,%sil
  je     L89
  jg     L179
  cmp    $0x21,%sil
  je     L89
  cmp    $0x5b,%sil
  jne    L66
  mov    $0x5d,%edi
L188:
  cmp    $0x21,%al
  jne    L94
  lea    0x2(%r8),%edx
  movslq %edx,%rax
  movzbl (%rcx,%rax,1),%eax
  cmp    %al,%dil
  jne    L133
  cs nopw 0x0(%rax,%rax,1)
L33:
  lea    0x1(%rdx),%edi
  jmp    L66
  nopl   (%rax)
L209:
  mov    %esi,%edx
  test   %al,%al
  je     L87
L94:
  cmp    %al,%dil
  je     L33
L133:
  cmp    $0x5c,%al
  jne    L123
  add    $0x1,%edx
  movslq %edx,%rax
  movzbl (%rcx,%rax,1),%eax
L123:
  test   %al,%al
  je     L87
  lea    0x1(%rdx),%esi
  movslq %esi,%rax
  movzbl (%rcx,%rax,1),%eax
  cmp    $0x2d,%al
  jne    L209
  lea    0x2(%rdx),%eax
  movslq %eax,%rsi
  movzbl (%rcx,%rsi,1),%esi
  cmp    $0x5c,%sil
  jne    L48
  lea    0x3(%rdx),%eax
  movslq %eax,%rdx
  movzbl (%rcx,%rdx,1),%esi
L48:
  test   %sil,%sil
  je     L87
  lea    0x1(%rax),%edx
  movslq %edx,%rax
  movzbl (%rcx,%rax,1),%eax
  test   %al,%al
  jne    L94
L87:
  xor    %eax,%eax
  ret
  nopl   0x0(%rax,%rax,1)
L179:
  cmp    $0x7b,%sil
  jne    L66
  mov    $0x7d,%edi
  jmp    L188
L115:
  mov    $0x1,%eax
  ret
```

assistant: ```c
int fpattern_isvalid(const char *pat) {
  int len;
  char close;
  if (pat == ((void *)0))
    return (0);
  for (len = 0; pat[len] != '\0'; len++) {
    switch (pat[len]) {
    case '[':
    case '{':
      close = (char)((pat[len] == '[') ? ']' : '}');
      len++;
      if (pat[len] == '!')
        len++;
      while (pat[len] != close) {
        if (pat[len] == '\\')
          len++;
        if (pat[len] == '\0')
          return (0);
        len++;
        if (pat[len] == '-') {
          len++;
          if (pat[len] == '\\')
            len++;
          if (pat[len] == '\0')
            return (0);
          len++;
        }
        if (pat[len] == '\0')
          return (0);
      }
      break;
    case '\\':
      len++;
      if (pat[len] == '\0')
        return (0);
      break;
    case '!':
      len++;
      if (pat[len] == '\0')
        return (0);
      break;
    default:
      break;
    }
  }
  return (1);
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<burn_stack>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x70,%rsp
  mov    %edi,-0x64(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  lea    -0x50(%rbp),%rax
  mov    %rax,-0x60(%rbp)
  movq   $0x40,-0x58(%rbp)
  jmp    L22
L8:
  mov    -0x60(%rbp),%rax
  movb   $0x0,(%rax)
  addq   $0x1,-0x60(%rbp)
  subq   $0x1,-0x58(%rbp)
L22:
  cmpq   $0x0,-0x58(%rbp)
  jne    L8
  mov    -0x64(%rbp),%eax
  sub    $0x40,%eax
  mov    %eax,-0x64(%rbp)
  cmpl   $0x0,-0x64(%rbp)
  jle    L1
  mov    -0x64(%rbp),%eax
  mov    %eax,%edi
  call   <burn_stack>
L1:
  nop
  mov    -0x8(%rbp),%rax
  sub    %fs:0x28,%rax
  je     L7
  call   <__stack_chk_fail@plt>
L7:
  leave
  ret
```

assistant: ```c
void burn_stack(int bytes) {
  char buf[64];
  do {
    volatile char *_vptr = (volatile char *)(buf);
    size_t _vlen = (sizeof buf);
    while (_vlen) {
      *_vptr = (0);
      _vptr++;
      _vlen--;
    }
  } while (0);
  bytes -= sizeof buf;
  if (bytes > 0)
    burn_stack(bytes);
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<burn_stack>:
  endbr64
  sub    $0x58,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x48(%rsp)
  xor    %eax,%eax
  mov    %rsp,%rax
  lea    0x40(%rsp),%rdx
L39:
  movb   $0x0,(%rax)
  add    $0x1,%rax
  cmp    %rdx,%rax
  jne    L39
  sub    $0x40,%edi
  test   %edi,%edi
  jg     L38
L13:
  mov    0x48(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L35
  add    $0x58,%rsp
  ret
L38:
  call   <burn_stack>
  jmp    L13
L35:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
void burn_stack(int bytes) {
  char buf[64];
  do {
    volatile char *_vptr = (volatile char *)(buf);
    size_t _vlen = (sizeof buf);
    while (_vlen) {
      *_vptr = (0);
      _vptr++;
      _vlen--;
    }
  } while (0);
  bytes -= sizeof buf;
  if (bytes > 0)
    burn_stack(bytes);
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<burn_stack>:
  endbr64
  sub    $0x58,%rsp
  mov    %edi,%ecx
  mov    %fs:0x28,%rax
  mov    %rax,0x48(%rsp)
  xor    %eax,%eax
  mov    %rsp,%rsi
  lea    0x40(%rsp),%rdx
  nopw   0x0(%rax,%rax,1)
L16:
  mov    %rsi,%rax
  nopl   0x0(%rax,%rax,1)
L23:
  movb   $0x0,(%rax)
  add    $0x1,%rax
  cmp    %rdx,%rax
  jne    L23
  sub    $0x40,%ecx
  test   %ecx,%ecx
  jg     L16
  mov    0x48(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L3
  add    $0x58,%rsp
  ret
L3:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
void burn_stack(int bytes) {
  char buf[64];
  do {
    volatile char *_vptr = (volatile char *)(buf);
    size_t _vlen = (sizeof buf);
    while (_vlen) {
      *_vptr = (0);
      _vptr++;
      _vlen--;
    }
  } while (0);
  bytes -= sizeof buf;
  if (bytes > 0)
    burn_stack(bytes);
}
```
user: What would the C source look like for the assembly code provided here:

```asm
<burn_stack>:
  endbr64
  sub    $0x58,%rsp
  mov    %edi,%ecx
  mov    %fs:0x28,%rax
  mov    %rax,0x48(%rsp)
  xor    %eax,%eax
  mov    %rsp,%rsi
  lea    0x40(%rsp),%rdx
  nopw   0x0(%rax,%rax,1)
L29:
  mov    %rsi,%rax
  nopl   0x0(%rax,%rax,1)
L12:
  movb   $0x0,(%rax)
  add    $0x1,%rax
  cmp    %rdx,%rax
  jne    L12
  sub    $0x40,%ecx
  test   %ecx,%ecx
  jg     L29
  mov    0x48(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L15
  add    $0x58,%rsp
  ret
L15:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
void burn_stack(int bytes) {
  char buf[64];
  do {
    volatile char *_vptr = (volatile char *)(buf);
    size_t _vlen = (sizeof buf);
    while (_vlen) {
      *_vptr = (0);
      _vptr++;
      _vlen--;
    }
  } while (0);
  bytes -= sizeof buf;
  if (bytes > 0)
    burn_stack(bytes);
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<usage>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  cmpq   $0x0,-0x18(%rbp)
  je     L11
  mov    -0x18(%rbp),%rax
  jmp    L7
L11:
  lea    D1(%rip),%rax
L7:
  mov    %rax,-0x8(%rbp)
  mov    -0x8(%rbp),%rdx
  mov    -0x8(%rbp),%rax
  mov    %rdx,%rcx
  lea    D10(%rip),%rdx
  mov    %rax,%rsi
  lea    D8(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0x1,%edi
  call   <exit@plt>
  nop
  leave
  ret
```

tool_calls: name: parse_data
arguments: label: D1
type: string
name: parse_data
arguments: label: D10
type: string
name: parse_data
arguments: label: D8
type: string

tool: D1: chpax

tool: D10: 0.7

tool: D8: %s %s .::. Manage PaX flags for binaries
Usage: %s OPTIONS FILE1 FILE2 FILEN ...
  -P	enforce paging based non-executable pages
  -p	do not enforce paging based non-executable pages
  -E	emulate trampolines
  -e	do not emulate trampolines
  -M	restrict mprotect()
  -m	do not restrict mprotect()
  -R	randomize mmap() base [ELF only]
  -r	do not randomize mmap() base [ELF only]
  -X	randomize ET_EXEC base [ELF only]
  -x	do not randomize ET_EXEC base [ELF only]
  -S	enforce segmentation based non-executable pages
  -s	do not enforce segmentation based non-executable pages
  -v	view current flag mask 
  -z	zero flag mask (next flags still apply)

The flags only have effect when running the patched Linux kernel.


assistant: ```c
void usage(char *name) {
  char *ptr;
  ptr = (name ? name : "chpax");
  printf("%s %s .::. Manage PaX flags for binaries\n"
         "Usage: %s OPTIONS FILE1 FILE2 FILEN ...\n"
         "  -P\tenforce paging based non-executable pages\n"
         "  -p\tdo not enforce paging based non-executable pages\n"
         "  -E\temulate trampolines\n"
         "  -e\tdo not emulate trampolines\n"
         "  -M\trestrict mprotect()\n"
         "  -m\tdo not restrict mprotect()\n"
         "  -R\trandomize mmap() base [ELF only]\n"
         "  -r\tdo not randomize mmap() base [ELF only]\n"
         "  -X\trandomize ET_EXEC base [ELF only]\n"
         "  -x\tdo not randomize ET_EXEC base [ELF only]\n"
         "  -S\tenforce segmentation based non-executable pages\n"
         "  -s\tdo not enforce segmentation based non-executable pages\n"
         "  -v\tview current flag mask \n"
         "  -z\tzero flag mask (next flags still apply)\n\n"
         "The flags only have effect when running the patched Linux kernel.\n",
         ptr, "0.7", ptr);
  exit(1);
}
```