测量Linux多线程应用程序的堆栈使用情况

__thread void* stack_start;
__thread long stack_max_size = 0L;

void check_stack_size() {
  // address of 'nowhere' approximates end of stack
  char nowhere;
  void* stack_end = (void*)&nowhere;
  // may want to double check stack grows downward on your platform
  long stack_size = (long)stack_start - (long)stack_end;
  // update max_stack_size for this thread
  if (stack_size > stack_max_size)
    stack_max_size = stack_size;
}

必须在一些嵌套最深的函数中调用check_stack_size()函数.

然后作为线程中的最后一个语句,您可以将stack_max_size输出到某个地方.

必须在线程开始时初始化stack_start变量：

void thread_proc() {
  char nowhere;
  stack_start = (void*)&nowhere;
  // do stuff including calls to check_stack_size()
  // in deeply nested functions
  // output stack_max_size here
}