user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<patch_firmware_tcc>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x40,%rsp
  mov    %rdi,-0x28(%rbp)
  mov    %esi,-0x2c(%rbp)
  mov    %rdx,-0x38(%rbp)
  mov    %ecx,-0x30(%rbp)
  mov    %r8,-0x40(%rbp)
  mov    -0x2c(%rbp),%edx
  mov    -0x30(%rbp),%eax
  add    %edx,%eax
  mov    %eax,%edi
  call   <malloc@plt>
  mov    %rax,-0x8(%rbp)
  cmpq   $0x0,-0x8(%rbp)
  jne    L12
  mov    $0x0,%eax
  jmp    L14
L12:
  mov    -0x2c(%rbp),%edx
  mov    -0x28(%rbp),%rcx
  mov    -0x8(%rbp),%rax
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <memcpy@plt>
  mov    -0x2c(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x8(%rbp),%rax
  lea    (%rdx,%rax,1),%rcx
  mov    -0x30(%rbp),%edx
  mov    -0x38(%rbp),%rax
  mov    %rax,%rsi
  mov    %rcx,%rdi
  call   <memcpy@plt>
  mov    -0x8(%rbp),%rax
  mov    %rax,%rdi
  call   <get_uint32le@plt>
  mov    %eax,-0x18(%rbp)
  mov    -0x18(%rbp),%eax
  and    $0xfff,%eax
  add    $0x8,%eax
  mov    %eax,-0x14(%rbp)
  mov    -0x14(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,%rdi
  call   <get_uint32le@plt>
  mov    %eax,-0x10(%rbp)
  mov    -0x2c(%rbp),%eax
  add    $0x20000000,%eax
  mov    %eax,-0xc(%rbp)
  mov    -0x10(%rbp),%eax
  mov    %eax,%esi
  lea    D18(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    -0xc(%rbp),%eax
  add    $0x8,%eax
  mov    %eax,%esi
  lea    D17(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    -0x2c(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x8(%rbp),%rax
  add    %rax,%rdx
  mov    -0x10(%rbp),%eax
  mov    %rdx,%rsi
  mov    %eax,%edi
  call   <put_uint32le@plt>
  mov    -0x2c(%rbp),%eax
  cltq
  lea    0x4(%rax),%rdx
  mov    -0x8(%rbp),%rax
  add    %rax,%rdx
  mov    -0xc(%rbp),%eax
  mov    %rdx,%rsi
  mov    %eax,%edi
  call   <put_uint32le@plt>
  mov    -0x14(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x8(%rbp),%rax
  add    %rax,%rdx
  mov    -0xc(%rbp),%eax
  add    $0x8,%eax
  mov    %rdx,%rsi
  mov    %eax,%edi
  call   <put_uint32le@plt>
  mov    -0x2c(%rbp),%edx
  mov    -0x30(%rbp),%eax
  add    %eax,%edx
  mov    -0x8(%rbp),%rax
  mov    %edx,%esi
  mov    %rax,%rdi
  call   <telechips_encode_crc@plt>
  mov    -0x2c(%rbp),%edx
  mov    -0x30(%rbp),%eax
  add    %eax,%edx
  mov    -0x40(%rbp),%rax
  mov    %edx,(%rax)
  mov    -0x8(%rbp),%rax
L14:
  leave
  ret
```

tool_calls: name: disassemble_data
arguments: data_label: D18
data_type: string
name: disassemble_data
arguments: data_label: D17
data_type: string

tool: D18: OF entry point: 0x%08x


tool: D17: New entry point: 0x%08x


assistant: ```c
unsigned char *patch_firmware_tcc(unsigned char *of_buf, int of_size, unsigned char *boot_buf, int boot_size, int *patched_size) {
  unsigned char *patched_buf;
  uint32_t ldr, old_ep_offset, new_ep_offset;
  int of_offset;
  patched_buf = malloc(of_size + boot_size);
  if (!patched_buf)
    return NULL;
  memcpy(patched_buf, of_buf, of_size);
  memcpy(patched_buf + of_size, boot_buf, boot_size);
  ldr = get_uint32le(patched_buf);
  of_offset = (ldr & 0xfff) + 8;
  old_ep_offset = get_uint32le(patched_buf + of_offset);
  new_ep_offset = 0x20000000 + of_size;
  printf("OF entry point: 0x%08x\n", old_ep_offset);
  printf("New entry point: 0x%08x\n", new_ep_offset + 8);
  put_uint32le(old_ep_offset, patched_buf + of_size);
  put_uint32le(new_ep_offset, patched_buf + of_size + 4);
  put_uint32le(new_ep_offset + 8, patched_buf + of_offset);
  telechips_encode_crc(patched_buf, of_size + boot_size);
  *patched_size = of_size + boot_size;
  return patched_buf;
}
```