通过打开 Breakpoint Navigator(View->Navigators->Show Breakpoint Navigator 或 ⌘8)，在 malloc_error_break() 上设置断点，单击加号按钮在左下角，然后选择添加符号断点".在出现的弹出窗口中，在符号字段中输入 malloc_error_break，然后单击完成.

Set a breakpoint on malloc_error_break() by opening the Breakpoint Navigator (View->Navigators->Show Breakpoint Navigator or ⌘8), clicking the plus button in the lower left corner, and selecting "Add Symbolic Breakpoint". In the popup that comes up, enter malloc_error_break in the Symbol field, then click Done.

openfrog 添加了一个屏幕截图并表示他已经尝试了这些步骤但没有成功我发布了我的答案.有了那个编辑，我不知道该说什么.我还没有看到我自己失败了，事实上我总是在 malloc_error_break 集上设置一个断点.

openfrog added a screenshot and indicated that he's already tried these steps without success after I posted my answer. With that edit, I'm not sure what to say. I haven't seen that fail to work myself, and indeed I always keep a breakpoint on malloc_error_break set.