5. backtrace()の使い方//スタックトレースの出力[mstrappendString:@"Stack:"]; void* callstack[128];inti, frames = backtrace(callstack, 128); char** strs = backtrace_symbols(callstack, frames); for (i = 0; i < frames; ++i) { [mstrappendFormat:@"%s",strs[i]]; } 7. 出力例 Signal:10 Stack: 0 ibisMail 0x0006989d dump + 64 1 ibisMail 0x00069b4b signalHandler + 46 2 libSystem.B.dylib 0x31dcd60b _sigtr