Mac：我收到 SIGABRT 但调用堆栈没用
我正在用 c++ 为 Mac 编写游戏，并且收到 SIGABRT，并且控制台打印以下内容：
terminate called after throwing an instance of 'boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::bad_lexical_cast> >'
what(): bad lexical cast: source type value could not be interpreted as target
Program received signal: “SIGABRT”.
所以，我的 lexical_cast 很糟糕。但问题是我不知道在哪里，因为调用堆栈如下：
#0 0x7fff85fb629a in mach_msg_trap
#1 0x7fff85fb690d in mach_msg
#2 0x7fff81f58932 in __CFRunLoopRun
#3 0x7fff81f57dbf in CFRunLoopRunSpecific
#4 0x7fff88dba7ee in RunCurrentEventLoopInMode
#5 0x7fff88dba5f3 in ReceiveNextEventCommon
#6 0x7fff88dba4ac in BlockUntilNextEventMatchingListInMode
#7 0x7fff84f85e64 in _DPSNextEvent
#8 0x7fff84f857a9 in -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:]
#9 0x7fff84f4b48b in -[NSApplication run]
#10 0x7fff84f441a8 in NSApplicationMain
#11 0x1000ef759 in os_gameMainLoop at main-osx.mm:22
#12 0x10009a97d in main at words.cpp:18
那不是正确的堆栈。
什么是 match_msg_trap？
我为什么会得到这个调用堆栈？
我有什么办法可以在崩溃时获得良好的调用堆栈吗？
谢谢！
I'm coding a game for Mac in c++, and I'm getting a SIGABRT, and the console prints the following:
terminate called after throwing an instance of 'boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::bad_lexical_cast> >'
what(): bad lexical cast: source type value could not be interpreted as target
Program received signal: “SIGABRT”.
So, I'm doing a bad lexical_cast. But the problem is that I can't know where, because the call stack is as follows:
#0 0x7fff85fb629a in mach_msg_trap
#1 0x7fff85fb690d in mach_msg
#2 0x7fff81f58932 in __CFRunLoopRun
#3 0x7fff81f57dbf in CFRunLoopRunSpecific
#4 0x7fff88dba7ee in RunCurrentEventLoopInMode
#5 0x7fff88dba5f3 in ReceiveNextEventCommon
#6 0x7fff88dba4ac in BlockUntilNextEventMatchingListInMode
#7 0x7fff84f85e64 in _DPSNextEvent
#8 0x7fff84f857a9 in -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:]
#9 0x7fff84f4b48b in -[NSApplication run]
#10 0x7fff84f441a8 in NSApplicationMain
#11 0x1000ef759 in os_gameMainLoop at main-osx.mm:22
#12 0x10009a97d in main at words.cpp:18
That´s not the right stack.
What's match_msg_trap?
Whay am I getting this call stack?
Do I have any way to get a good call stack on the crash?
Thanks!
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调试器停止在错误的线程中。尝试在 GDB 中使用
taa bt来查看所有线程的回溯。mach_msg_trap是线程在等待消息传入时驻留的位置。因此，您正在查看一个未运行的线程。 Mach 是 OS X 上消息传递接口的名称。The debugger stopped in the wrong thread. Try
t a a btin GDB to see backtraces for all the threads.mach_msg_trapis where threads park while they are waiting for a message to come in. So, you are looking at a thread that isn't running. Mach is the name of the message-passing interface on OS X.