I have a Console stack (not a crash report) from a user, and I’m trying to determine which method call in my application was the last man standing.
I know which version of the application they were using, and I have a copy of that release/debug build, along with the dSYM file for the archived copy.
But, when I try to use atos to spit out the memory address, it doesn’t seem to help. (I’m using 0x000000010e703bc0 from the stack below.)
craig-mbp:Desktop Craig$ atos -o MyApp.app_1.0.0.dSYM/Contents/Resources/DWARF/MyApp -arch x86_64
0x000000010e703bc0 (<- entered by me)
0x000000010e703bc0 (<- console output)
Do I need to enter an offset of some sort? Or some kind of memory address math to determine the actual location inside my program’s memory block, based on the address provided to me by the user?
This is the totality of the stack trace I received:
28/11/12 10:48:56.220 AM MyApp[411] (
0 CoreFoundation 0x00007fff8fee90a6 __exceptionPreprocess + 198
1 libobjc.A.dylib 0x00007fff8e94a3f0 objc_exception_throw + 43
2 CoreFoundation 0x00007fff8fee8e7c +[NSException raise:format:] + 204
3 Foundation 0x00007fff92b1ce5c -[NSPlaceholderString initWithString:] + 93
4 Foundation 0x00007fff92b1cde4 +[NSString stringWithString:] + 43
5 MyApp 0x000000010e703bc0 MyApp + 23488
6 MyApp 0x000000010e70a038 MyApp + 49208
7 MyApp 0x000000010e70b41a MyApp + 54298
8 MyApp 0x000000010e70bb92 MyApp + 56210
9 Foundation 0x00007fff92b22db5 __NSFireDelayedPerform + 358
10 CoreFoundation 0x00007fff8fea5da4 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 20
11 CoreFoundation 0x00007fff8fea58bd __CFRunLoopDoTimer + 557
12 CoreFoundation 0x00007fff8fe8b099 __CFRunLoopRun + 1513
13 CoreFoundation 0x00007fff8fe8a6b2 CFRunLoopRunSpecific + 290
14 HIToolbox 0x00007fff8b31c0a4 RunCurrentEventLoopInMode + 209
15 HIToolbox 0x00007fff8b31be42 ReceiveNextEventCommon + 356
16 HIToolbox 0x00007fff8b31bcd3 BlockUntilNextEventMatchingListInMode + 62
17 AppKit 0x00007fff948e7613 _DPSNextEvent + 685
18 AppKit 0x00007fff948e6ed2 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 128
19 AppKit 0x00007fff948de283 -[NSApplication run] + 517
20 AppKit 0x00007fff94882cb6 NSApplicationMain + 869
21 MyApp 0x000000010e6ffab4 MyApp + 6836
it’s expecting a load address. have you tried:
i get 0x000000010E6FE000 from your example by subtracting 6836 (base10) from 0x000000010e6ffab4 … or you could use any of the other math items shown there for MyApp .
here’s an example from one of my recent crashes, where the 0x2d000 was evident from the crash log. first line is what i entered on the command line. every other line after that is program output (artificially indenting my input with $ or $> … there is no such prompt on the screen).