[lldb-dev] [Bug 27563] New: crashlog.py leads to a segfault

[via lldb-dev]

https://llvm.org/bugs/show_bug.cgi?id=27563

            Bug ID: 27563
           Summary: crashlog.py leads to a segfault
           Product: lldb
           Version: unspecified
          Hardware: Macintosh
                OS: MacOS X
            Status: NEW
          Severity: normal
          Priority: P
         Component: All Bugs
          Assignee: lldb-dev at lists.llvm.org
          Reporter: antonio.frighetto at studenti.unitn.it
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

Let's say a crash dump has an unspecified stack frame, like the following:
5  ???  0x00007fff9a51076f objc_exception_throw + 432

Then, once set up lldb and imported crashlog.py script (alternatively via
PYTHONPATH=/path/to/LLDB.framework/Resources/Python ./crashlog.py
~/Library/Logs/DiagnosticReports/a.crash), after being loaded, line 867:

images = crash_log.find_images_with_identifier (ident) 

seems to lead to a segmentation fault. Tested on multiple crashes. Looks like
as if a little fix may be as follows:

...
for ident in crash_log.idents:
    if ident != "???":
        images = crash_log.find_images_with_identifier(ident)
        if images:
...

Bye, Antonio.

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