user: 请将以下的汇编代码转换成C语言代码:

```asm
<dump_iovec>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x40,%rsp
  mov    %edi,-0x24(%rbp)
  mov    %esi,-0x28(%rbp)
  mov    %rdx,-0x30(%rbp)
  mov    %rcx,-0x38(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  mov    -0x28(%rbp),%eax
  mov    %eax,-0x18(%rbp)
  mov    -0x28(%rbp),%eax
  add    $0x4,%eax
  mov    %eax,-0x14(%rbp)
  movl   $0x0,-0x1c(%rbp)
  cmpl   $0x0,-0x24(%rbp)
  jns    L35
  mov    $0x0,%edi
  call   <malloc@plt>
  mov    -0x30(%rbp),%rdx
  mov    %rax,(%rdx)
  mov    -0x1c(%rbp),%eax
  jmp    L7
L35:
  mov    $0x10,%edi
  call   <malloc@plt>
  mov    %rax,-0x10(%rbp)
  mov    -0x38(%rbp),%rdx
  mov    -0x18(%rbp),%eax
  mov    %rdx,%rsi
  mov    %eax,%edi
  call   <read_ptr_from_mem@plt>
  mov    %eax,-0x18(%rbp)
  cmpl   $0x0,-0x24(%rbp)
  jne    L59
  mov    -0x10(%rbp),%rdx
  mov    -0x18(%rbp),%eax
  mov    %rdx,%rsi
  mov    %eax,%edi
  call   <dump_ptr@plt>
  mov    %eax,%edx
  mov    -0x1c(%rbp),%eax
  add    %edx,%eax
  mov    %eax,-0x1c(%rbp)
  mov    -0x10(%rbp),%rax
  lea    0x8(%rax),%rcx
  mov    -0x38(%rbp),%rdx
  mov    -0x14(%rbp),%eax
  mov    %rcx,%rsi
  mov    %eax,%edi
  call   <dump_unsigned_int_from_mem@plt>
  mov    %eax,%edx
  mov    -0x1c(%rbp),%eax
  add    %edx,%eax
  mov    %eax,-0x1c(%rbp)
  lea    -0x1c(%rbp),%rdx
  mov    -0x10(%rbp),%rax
  mov    $0x2,%esi
  mov    %rax,%rdi
  call   <copy_params@plt>
  mov    -0x30(%rbp),%rdx
  mov    %rax,(%rdx)
  mov    -0x10(%rbp),%rax
  mov    $0x2,%esi
  mov    %rax,%rdi
  call   <free_dumped_params@plt>
  mov    -0x1c(%rbp),%eax
  jmp    L7
L59:
  cmpl   $0x0,-0x24(%rbp)
  jle    L45
  mov    -0x38(%rbp),%rdx
  mov    -0x10(%rbp),%rsi
  mov    -0x18(%rbp),%eax
  mov    $0x100,%ecx
  mov    %eax,%edi
  call   <dump_n_bytes_from_mem@plt>
  mov    %eax,%edx
  mov    -0x1c(%rbp),%eax
  add    %edx,%eax
  mov    %eax,-0x1c(%rbp)
  mov    -0x10(%rbp),%rax
  lea    0x8(%rax),%rcx
  mov    -0x38(%rbp),%rdx
  mov    -0x14(%rbp),%eax
  mov    %rcx,%rsi
  mov    %eax,%edi
  call   <dump_unsigned_int_from_mem@plt>
  mov    %eax,%edx
  mov    -0x1c(%rbp),%eax
  add    %edx,%eax
  mov    %eax,-0x1c(%rbp)
L45:
  lea    -0x1c(%rbp),%rdx
  mov    -0x10(%rbp),%rax
  mov    $0x2,%esi
  mov    %rax,%rdi
  call   <copy_params@plt>
  mov    -0x30(%rbp),%rdx
  mov    %rax,(%rdx)
  mov    -0x10(%rbp),%rax
  mov    $0x2,%esi
  mov    %rax,%rdi
  call   <free_dumped_params@plt>
  mov    -0x1c(%rbp),%eax
L7:
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L19
  call   <__stack_chk_fail@plt>
L19:
  leave
  ret
```

assistant: ```c
int dump_iovec(int depth, unsigned int addr, char **dumped_params, struct target *target) {
  char **dumped_type_params;
  unsigned int arm_tracing_iov_base = addr;
  unsigned int arm_tracing_iov_len = addr + 4;
  int len = 0;
  if (depth < 0) {
    *dumped_params = malloc(0);
    return len;
  }
  dumped_type_params = malloc(2 * (sizeof(char *)));
  arm_tracing_iov_base = read_ptr_from_mem(arm_tracing_iov_base, target);
  if (depth == 0) {
    len += dump_ptr(arm_tracing_iov_base, &dumped_type_params[0]);
    len += dump_unsigned_int_from_mem(arm_tracing_iov_len, &dumped_type_params[1], target);
    *dumped_params = copy_params(dumped_type_params, 2, &len);
    free_dumped_params(dumped_type_params, 2);
    return len;
  }
  if (depth >= 1) {
    len += dump_n_bytes_from_mem(arm_tracing_iov_base, &dumped_type_params[0], target, 256);
    len += dump_unsigned_int_from_mem(arm_tracing_iov_len, &dumped_type_params[1], target);
  }
  *dumped_params = copy_params(dumped_type_params, 2, &len);
  free_dumped_params(dumped_type_params, 2);
  return len;
}
```