Crash Dump Analysis Patterns (Part 60, Mac OS X)

This is a Mac OS X / GDB counterpart to Execution Residue pattern previously described for Windows platforms:

(gdb) bt
#0 0x00007fff8616e82a in __kill ()
#1 0x00007fff8fab9a9c in abort ()
#2 0x000000010269dc29 in bar_5 ()
#3 0x000000010269dc39 in bar_4 ()
#4 0x000000010269dc49 in bar_3 ()
#5 0x000000010269dc59 in bar_2 ()
#6 0x000000010269dc69 in bar_1 ()
#7 0x000000010269dc79 in bar ()
#8 0x000000010269dca0 in main (argc=1, argv=0x7fff6229cb00)

(gdb) x $rsp
0x7fff6229ca38: 0x8fab9a9c

(gdb) x/1000a 0x7fff6229c000
0×7fff6229c000: 0×7fff8947b000 0×7fff8947b570
0×7fff6229c010: 0×4f3ee10c 0×7fff90cb0000
0×7fff6229c020: 0×7fff90cb04d0 0×4e938b16
[…]
0×7fff6229c5f0: 0×7fff622d8d80 0×10269d640
0×7fff6229c600: 0×7fff6229cad0 0×7fff622a460b
0×7fff6229c610: 0×100000000 0×269d000
0×7fff6229c620: 0×7fff6229c630 0×10269db59 <foo_8+9>
0×7fff6229c630: 0×7fff6229c640 0×10269db69 <foo_7+9>
0×7fff6229c640: 0×7fff6229c650 0×10269db79 <foo_6+9>
0×7fff6229c650: 0×7fff6229c660 0×10269db89 <foo_5+9>
0×7fff6229c660: 0×7fff6229c670 0×10269db99 <foo_4+9>
0×7fff6229c670: 0×7fff6229c680 0×10269dba9 <foo_3+9>
0×7fff6229c680: 0×7fff6229c690 0×10269dbb9 <foo_2+9>
0×7fff6229c690: 0×7fff6229c6a0 0×10269dbc9 <foo_1+9>
0×7fff6229c6a0: 0×7fff6229cac0 0×10269dbee <foo+30>

0×7fff6229c6b0: 0×0 0×0
0×7fff6229c6c0: 0×0 0×0
0×7fff6229c6d0: 0×0 0×0
0×7fff6229c6e0: 0×0 0×0
[…]
0×7fff6229c8d0: 0×7fff6229c960 0×7fff622b49cd
0×7fff6229c8e0: 0×10269f05c 0×0
0×7fff6229c8f0: 0×7fff622c465c 0×7fff8a31e5c0 <_Z21dyldGlobalLockReleasev>
0×7fff6229c900: 0×7fff8fab99eb <abort> 0×10269f05c
0×7fff6229c910: 0×101000000000000 0×7fff622d2110
0×7fff6229c920: 0×7fff622d8d80 0×10269f078
0×7fff6229c930: 0×7fff622daac8 0×18
0×7fff6229c940: 0×0 0×0
0×7fff6229c950: 0×10269e030 0×0
0×7fff6229c960: 0×7fff6229c980 0×7fff622a1922
0×7fff6229c970: 0×0 0×0
0×7fff6229c980: 0×7fff6229ca50 0×7fff8a31e716 <dyld_stub_binder_+13>
0×7fff6229c990: 0×1 0×7fff6229cb00
0×7fff6229c9a0: 0×7fff6229cb10 0xe223ea612ddc10b7
0×7fff6229c9b0: 0×8 0×0
0×7fff6229c9c0: 0xe223ea612ddc10b7 0×0
0×7fff6229c9d0: 0×0 0×0
0×7fff6229c9e0: 0×585f5f00474e414c 0×20435058005f4350
0×7fff6229c9f0: 0×0 0×0
0×7fff6229ca00: 0×0 0×0
0×7fff6229ca10: 0×0 0×0
0×7fff6229ca20: 0×0 0×0
0×7fff6229ca30: 0×7fff6229ca60 0×7fff8fab9a9c <abort+177>
0×7fff6229ca40: 0×0 0×0
0×7fff6229ca50: 0×7fffffffffdf 0×0
0×7fff6229ca60: 0×7fff6229ca70 0×10269dc29 <bar_5+9>
0×7fff6229ca70: 0×7fff6229ca80 0×10269dc39 <bar_4+9>
0×7fff6229ca80: 0×7fff6229ca90 0×10269dc49 <bar_3+9>
0×7fff6229ca90: 0×7fff6229caa0 0×10269dc59 <bar_2+9>
0×7fff6229caa0: 0×7fff6229cab0 0×10269dc69 <bar_1+9>
0×7fff6229cab0: 0×7fff6229cac0 0×10269dc79 <bar+9>
0×7fff6229cac0: 0×7fff6229cae0 0×10269dca0 <main+32>
0×7fff6229cad0: 0×7fff6229cb00 0×1
0×7fff6229cae0: 0×7fff6229caf0 0×10269db34 <start+52>

0×7fff6229caf0: 0×0 0×1
0×7fff6229cb00: 0×7fff6229cc48 0×0
0×7fff6229cb10: 0×7fff6229ccae 0×7fff6229ccca
[…]

Here’s the source code of the modeling application:

#define def_call(name,x,y) void name##_##x() { name##_##y(); }

#define def_final(name,x) void name##_##x() { }

#define def_final_abort(name,x) void name##_##x() { abort(); }

#define def_init(name,y) void name() { name##_##y(); }

#define def_init_alloc(name,y,size) void name() { int arr[size]; name##_##y(); *arr=0; }

def_final(foo,9)

def_call(foo,8,9)

def_call(foo,7,8)

def_call(foo,6,7)

def_call(foo,5,6)

def_call(foo,4,5)

def_call(foo,3,4)

def_call(foo,2,3)

def_call(foo,1,2)

def_init_alloc(foo,1,256)

def_final_abort(bar,5)

def_call(bar,4,5)

def_call(bar,3,4)

def_call(bar,2,3)

def_call(bar,1,2)

def_init(bar,1)

int main(int argc, const char * argv[])

{

    foo();

    bar();

} 

- Dmitry Vostokov @ DumpAnalysis.org + TraceAnalysis.org -

Forthcoming Training: Accelerated Mac OS X Core Dump Analysis

2 Responses to “Crash Dump Analysis Patterns (Part 60, Mac OS X)”

  1. Marc Sherman Says:

    Interesting. Is there an equivalent stack base and limit so as to give the entire range of the thread’s stack?

  2. Dmitry Vostokov Says:

    This is a very good question and I answer it during this Monday’s Debugging TV session http://www.debugging.tv with examples from Windows and Mac OS X

Leave a Reply

You must be logged in to post a comment.