user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<dump_io_event>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x50,%rsp
  mov    %edi,-0x34(%rbp)
  mov    %esi,-0x38(%rbp)
  mov    %rdx,-0x40(%rbp)
  mov    %rcx,-0x48(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  mov    -0x38(%rbp),%eax
  mov    %eax,-0x20(%rbp)
  mov    -0x38(%rbp),%eax
  add    $0x8,%eax
  mov    %eax,-0x1c(%rbp)
  mov    -0x38(%rbp),%eax
  add    $0x10,%eax
  mov    %eax,-0x18(%rbp)
  mov    -0x38(%rbp),%eax
  add    $0x18,%eax
  mov    %eax,-0x14(%rbp)
  movl   $0x0,-0x24(%rbp)
  cmpl   $0x0,-0x34(%rbp)
  jns    L9
  mov    $0x0,%edi
  call   <malloc@plt>
  mov    -0x40(%rbp),%rdx
  mov    %rax,(%rdx)
  mov    -0x24(%rbp),%eax
  jmp    L5
L9:
  mov    $0x20,%edi
  call   <malloc@plt>
  mov    %rax,-0x10(%rbp)
  cmpl   $0x0,-0x34(%rbp)
  js     L6
  mov    -0x48(%rbp),%rdx
  mov    -0x10(%rbp),%rcx
  mov    -0x20(%rbp),%eax
  mov    %rcx,%rsi
  mov    %eax,%edi
  call   <dump_long_long_unsigned_int_from_mem@plt>
  mov    %eax,%edx
  mov    -0x24(%rbp),%eax
  add    %edx,%eax
  mov    %eax,-0x24(%rbp)
  mov    -0x10(%rbp),%rax
  lea    0x8(%rax),%rcx
  mov    -0x48(%rbp),%rdx
  mov    -0x1c(%rbp),%eax
  mov    %rcx,%rsi
  mov    %eax,%edi
  call   <dump_long_long_unsigned_int_from_mem@plt>
  mov    %eax,%edx
  mov    -0x24(%rbp),%eax
  add    %edx,%eax
  mov    %eax,-0x24(%rbp)
  mov    -0x10(%rbp),%rax
  lea    0x10(%rax),%rcx
  mov    -0x48(%rbp),%rdx
  mov    -0x18(%rbp),%eax
  mov    %rcx,%rsi
  mov    %eax,%edi
  call   <dump_long_long_int_from_mem@plt>
  mov    %eax,%edx
  mov    -0x24(%rbp),%eax
  add    %edx,%eax
  mov    %eax,-0x24(%rbp)
  mov    -0x10(%rbp),%rax
  lea    0x18(%rax),%rcx
  mov    -0x48(%rbp),%rdx
  mov    -0x14(%rbp),%eax
  mov    %rcx,%rsi
  mov    %eax,%edi
  call   <dump_long_long_int_from_mem@plt>
  mov    %eax,%edx
  mov    -0x24(%rbp),%eax
  add    %edx,%eax
  mov    %eax,-0x24(%rbp)
L6:
  lea    -0x24(%rbp),%rdx
  mov    -0x10(%rbp),%rax
  mov    $0x4,%esi
  mov    %rax,%rdi
  call   <copy_params@plt>
  mov    -0x40(%rbp),%rdx
  mov    %rax,(%rdx)
  mov    -0x10(%rbp),%rax
  mov    $0x4,%esi
  mov    %rax,%rdi
  call   <free_dumped_params@plt>
  mov    -0x24(%rbp),%eax
L5:
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L14
  call   <__stack_chk_fail@plt>
L14:
  leave
  ret
```

assistant: ```c
int dump_io_event(int depth, unsigned int addr, char **dumped_params, struct target *target) {
  char **dumped_type_params;
  unsigned int arm_tracing_data = addr;
  unsigned int arm_tracing_obj = addr + 8;
  unsigned int arm_tracing_res = addr + 16;
  unsigned int arm_tracing_res2 = addr + 24;
  int len = 0;
  if (depth < 0) {
    *dumped_params = malloc(0);
    return len;
  }
  dumped_type_params = malloc(4 * (sizeof(char *)));
  if (depth >= 0) {
    len += dump_long_long_unsigned_int_from_mem(arm_tracing_data, &dumped_type_params[0], target);
    len += dump_long_long_unsigned_int_from_mem(arm_tracing_obj, &dumped_type_params[1], target);
    len += dump_long_long_int_from_mem(arm_tracing_res, &dumped_type_params[2], target);
    len += dump_long_long_int_from_mem(arm_tracing_res2, &dumped_type_params[3], target);
  }
  *dumped_params = copy_params(dumped_type_params, 4, &len);
  free_dumped_params(dumped_type_params, 4);
  return len;
}
```