(lldb) script import lldb.macosx.crashlog (lldb) crashlog -i /tmp/*.crash % symbolicate --crashed-only This will symbolicate all of the crash logs only for the crashed thread. Also print out the crash log index number in the output of the interactive "image" command: (lldb) script import lldb.macosx.crashlog (lldb) crashlog -i /tmp/*.crash % image LLDB.framework ... This then allows you to symbolicate a crash log by index accurately when you looked for an image of a specific version llvm-svn: 160316