我可以在 Cocoa 框架代码中设置断点吗？
我应该能够在 Cocoa 框架本身内部设置断点吗？
我在 Mac OS X 应用程序中遇到过各种崩溃，有时是随机的。以下是 Xcode 调用堆栈示例的一部分：
0 - 0x98ed0e20 in __CFRunLoopRun
1 - 0x98ece464 in CFRunLoopRunSpecific
2 - 0x98ece291 in CFRunLoopRunInMode
3 - 0x96a90004 in RunCurrentEventLoopInMode
4 - 0x96a8fdbb in ReceiveNextEventCommon
5 - 0x96a8fc40 in BlockUntilNextEventMatchingListInMode
6 - 0x925b078d in _DPSNextEvent
7 - 0x925affce in -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:]
8 - 0x92572247 in -[NSApplication run]
9 - 0x021f009c in QEventDispatcherMac::processEvents at qeventdispatcher_mac.mm:591
10 - 0x01e47742 in QEventLoop::processEvents at qeventloop.cpp:149
11 - 0x01e4799e in QEventLoop::exec at qeventloop.cpp:201
12 - 0x01e49a33 in QCoreApplication::exec at qcoreapplication.cpp:1003
13 - 0x02254c54 in QApplication::exec at qapplication.cpp:3581
当我单击第 0 - 8 行时，Xcode 显示反汇编。
我更改了 Xcode 项目，以便在加载框架时使用 _debug 后缀。这允许我单步执行第 9 - 13 行中的 Qt 代码，但第 8 行在启动时调用，此后随时可能发生崩溃。
如果我无法设置断点，是否有任何工具可以帮助我调试此类问题？
提前致谢。
Should I be able to set breakpoints inside the Cocoa framework itself?
I've been seeing various crashes in my Mac OS X application, sometimes randomly. Here's part of an example call stack from Xcode:
0 - 0x98ed0e20 in __CFRunLoopRun
1 - 0x98ece464 in CFRunLoopRunSpecific
2 - 0x98ece291 in CFRunLoopRunInMode
3 - 0x96a90004 in RunCurrentEventLoopInMode
4 - 0x96a8fdbb in ReceiveNextEventCommon
5 - 0x96a8fc40 in BlockUntilNextEventMatchingListInMode
6 - 0x925b078d in _DPSNextEvent
7 - 0x925affce in -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:]
8 - 0x92572247 in -[NSApplication run]
9 - 0x021f009c in QEventDispatcherMac::processEvents at qeventdispatcher_mac.mm:591
10 - 0x01e47742 in QEventLoop::processEvents at qeventloop.cpp:149
11 - 0x01e4799e in QEventLoop::exec at qeventloop.cpp:201
12 - 0x01e49a33 in QCoreApplication::exec at qcoreapplication.cpp:1003
13 - 0x02254c54 in QApplication::exec at qapplication.cpp:3581
When I click on lines 0 - 8, Xcode displays disassembly.
I've changed my Xcode project so that it uses the _debug suffix when loading frameworks. This allows me to step through the Qt code in lines 9 - 13, but line 8 is called at startup and crashes can happen at any time after that.
If I can't set breakpoints, are there any tools that might help me debug problems like this?
Thanks in advance.
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您可以设置断点，以便它在您自己之外的代码上中断。但是您将无法看到源代码，因为您没有源代码。
在 xCode (3.xx) 中
“运行->管理断点->添加符号断点”
You can set up a breakpoint so it breaks on code outside your own. But you will not be able to see the source because you don't have the source code.
In xCode (3.x.x)
"Run->Manage Breakpoints->Add Symbolic Breakpoint"
在 XCode 4 中，您可以使用
Product->Debug->Create Symbolic Breakpoint... 创建符号断点
In XCode 4 you can create a symbolic breakpoint with
Product->Debug->Create Symbolic Breakpoint...
在XCode 5中
调试->断点->创建符号断点
In XCode 5
Debug->Breakpoints->Create Symbolic Breakpoint