[cfe-dev] clang segfault - CXTypes.cpp:134

andrewh at etherstack.com andrewh at etherstack.com
Wed Jan 16 00:55:15 PST 2013


Hi Gregory,

I've tried with the a version I checked out from svn a week or so ago  
and still experience the segfault

LLVM
URL: http://llvm.org/svn/llvm-project/llvm/trunk
Repository Root: http://llvm.org/svn/llvm-project
Repository UUID: 91177308-0d34-0410-b5e6-96231b3b80d8
Revision: 171351
Node Kind: directory
Schedule: normal
Last Changed Author: ctopper
Last Changed Rev: 171351
Last Changed Date: 2013-01-02 07:53:20 +1100 (Wed, 02 Jan 2013)

Clang
URL: http://llvm.org/svn/llvm-project/cfe/trunk
Repository Root: http://llvm.org/svn/llvm-project
Repository UUID: 91177308-0d34-0410-b5e6-96231b3b80d8
Revision: 171351
Node Kind: directory
Schedule: normal
Last Changed Author: d0k
Last Changed Rev: 171350
Last Changed Date: 2013-01-02 07:08:10 +1100 (Wed, 02 Jan 2013)

Cheers,
Andrew


Quoting Gregory Szorc <gregory.szorc at gmail.com>:

> Could you please try reproducing this with Clang 3.2 or the latest SVN
> version (http://clang.llvm.org/get_started.html)?
>
> On 1/15/2013 6:06 PM, Andrew Hankins wrote:
>> Hi all,
>>
>> Using libclang with the python bindings to parse some header files and
>> hopefully generate the equivalent Python ctypes definition for the
>> structures requested.
>> After parse as I'm walking through the tree I am hitting a segfault in
>> CXIndex.cpp:134 from struct2ctype.py:87
>> Looks like in CXTypes.cpp getCursorTU(C) returns null and freaks out
>> on the next line where its dereferenced - Every valid cursor should
>> have a valid TU right?
>> I've attach two files that can be used to reproduce the issue. Invoke
>> with the following command
>>
>> python2.7 struct2ctypes.py -d . StructName
>>
>> I've had some mixed results reproducing the issue. With library I
>> built from head I hit the issue having only parsed the single file but
>> library shipped with ubuntu I need to place the file in a directory
>> structure with plenty of other files.
>>
>> My machine details
>>  - Linux 3.2.0-24-generic #39-Ubuntu SMP Mon May 21 16:52:17 UTC 2012
>> x86_64 x86_64 x86_64 GNU/Linux
>>  - Python 2.7.3 (default, Aug  1 2012, 05:14:39)
>>  - clang version 3.0
>>
>> Happy to work further on this - just need some direction
>>
>> Cheers,
>> Andrew
>>
>>
>> _______________________________________________
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>> cfe-dev at cs.uiuc.edu
>> http://lists.cs.uiuc.edu/mailman/listinfo/cfe-dev
>
>







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