XCode:以编程方式启用符号断点吗? [英] XCode: Programmatically enable a symbolic breakpoint?

问题描述

有没有办法以编程方式启用断点?通常我会使用断点条件，但是我需要使用符号断点.

Is there a way to programmatically enable a breakpoint? Normally I'd use a breakpoint condition, but I need to use a symbolic breakpoint.

具体来说，是在对scrollToIndexPath的调用与对reloadData的调用之间更改了UIScrollView的contentOffset.我只想在调用scrollToIndexPath之后启用符号断点.

Specifically, something is changing the contentOffset of my UIScrollView between a call to scrollToIndexPath and a call to reloadData. I'd like to enable the symbolic breakpoint only after the call to scrollToIndexPath.

推荐答案

Jim Ingham的答案适用于x86系统.对于iOS设备，我可以使用此答案中所述的方法以编程方式创建断点.插入行

Jim Ingham's answer works on a x86 system. For an iOS device I was able to use the method described in this answer to programmatically create a breakpoint. Inserting the line

asm("svc 0");

使调试器在XCode中停止以下指令.

Causes the debugger to stop on the following instruction in XCode.

有趣的是，如果您没有连接到XCode，程序将继续正常执行.

Interestingly if you're not connected to XCode the program continues to execute normally.

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