[lldb-dev] lldb problems on linux

Kal Conley kcconley at gmail.com
Tue Aug 6 15:04:16 PDT 2013


Hi Dan,
Sorry I wasn't clear. My fix fixes the test suite issue. The only
remaining issue is the source debugging issue. I haven't got to look
into that yet. I am on Debian Wheezy.
-Kal

Am 8/6/13 11:44 PM, schrieb Malea, Daniel:
> Thank you Kal for the fix! Much appreciated :)
>
> I committed it in r187818.
>
> So, just to clarify, you're still unable to run the test suite after
> the fix? Which distro are you on?
>
>
> Thanks,
> Dan
>
> From: Kal Conley <kcconley at gmail.com <mailto:kcconley at gmail.com>>
> Date: Tuesday, 6 August, 2013 5:27 PM
> To: Andrew Kaylor <andrew.kaylor at intel.com
> <mailto:andrew.kaylor at intel.com>>, "lldb-dev at cs.uiuc.edu
> <mailto:lldb-dev at cs.uiuc.edu>" <lldb-dev at cs.uiuc.edu
> <mailto:lldb-dev at cs.uiuc.edu>>
> Subject: Re: [lldb-dev] lldb problems on linux
>
> Hi Andy,
> So I figured out the python issue. Host::GetLLDBPath() is broken. It
> was failing for me because I am building in Release mode. It only
> works in Debug mode by luck :) The problem is lines 1035+ in
> source/Host/common/Host.cpp. llvm::Twine should only be used for
> temporary objects! See
> http://llvm.org/docs/ProgrammersManual.html#dss-twine
>
> I have attached a patch this fixes the issue. I haven't found time to
> investigate my other issue yet.
>
> Thanks!
> -Kal
>
> Am 8/6/13 4:29 PM, schrieb Kaylor, Andrew:
>>
>> Hmm…  I’ve never seen the -P option print the wrong path.  Looking at
>> the code (in Host::GetLLDBPath) it doesn’t even look possible for it
>> to print what you’re seeing.
>>
>>  
>>
>> On the other hand, the second directory you mention should be the
>> correct one.  If you set PYTHONPATH to that does “python -c ‘import
>> lldb’” work?
>>
>>  
>>
>> -Andy
>>
>>  
>>
>> *From:*Kal Conley [mailto:kcconley at gmail.com]
>> *Sent:* Tuesday, August 06, 2013 2:00 AM
>> *To:* Kaylor, Andrew
>> *Cc:* lldb-dev at cs.uiuc.edu
>> *Subject:* Re: [lldb-dev] lldb problems on linux
>>
>>  
>>
>> Hi Andy,
>> I tried
>> export PYTHONPATH=`$llvm/build/Debug+Asserts/bin/lldb -P`
>> but it didn't work for me. If I run `build/bin/lldb -P` it outputs
>> "build/lib7/site-packages" which doesn't exist.
>> There is a directory build/lib/python-2.7/site-packages but if I set
>> the PYTHONPATH to this directory I get the same errors.
>>
>> I can import lldb; in python successfully though.
>>
>> Any other ideas?
>>
>> -Kal
>>
>>  
>>
>> 2013/8/5 Kaylor, Andrew <andrew.kaylor at intel.com
>> <mailto:andrew.kaylor at intel.com>>
>>
>> Hi Kal,
>>
>>  
>>
>> For the second problem, you need to set the PYTHONPATH environment
>> variable.  Try this:
>>
>>  
>>
>> export PYTHONPATH=`$llvm/build/Debug+Asserts/bin/lldb -P`
>>
>>  
>>
>> Regarding the source information, I would start by using the
>> following command within lldb (after you have created the target you
>> want to debug):
>>
>>  
>>
>> target modules dump sections
>>
>>  
>>
>> If you don’t see debug sections in that list, then that’s the
>> problem.  If you do, try enabling DWARF logging (‘log enable dwarf
>> all’) and see if anything obvious turns up in the output when you try
>> to set a breakpoint.
>>
>>  
>>
>> -Andy
>>
>>  
>>
>> *From:*lldb-dev-bounces at cs.uiuc.edu
>> <mailto:lldb-dev-bounces at cs.uiuc.edu>
>> [mailto:lldb-dev-bounces at cs.uiuc.edu
>> <mailto:lldb-dev-bounces at cs.uiuc.edu>] *On Behalf Of *Kal Conley
>> *Sent:* Sunday, August 04, 2013 11:27 AM
>> *To:* lldb-dev at cs.uiuc.edu <mailto:lldb-dev at cs.uiuc.edu>
>>
>>
>> *Subject:* [lldb-dev] lldb problems on linux
>>
>>  
>>
>> Hi,
>>
>> I recently build lldb from trunk (revision 187708) and source-level
>> debugging isn't working for me. It seems its not loading any source
>> information. What is the best way to troubleshoot this?
>>
>> Also make check-lldb doesn't work on Linux when building with CMake.
>> I just get error:
>>
>> This script requires lldb.py to be in either
>> /home/user/tools/llvm_3.4~svn187708/tools/lldb/build/Debug/LLDB.framework/Resources/Python,
>> /home/user/tools/llvm_3.4~svn187708/tools/lldb/build/Release/LLDB.framework/Resources/Python,
>> or
>> /home/user/tools/llvm_3.4~svn187708/tools/lldb/build/BuildAndIntegration/LLDB.framework/Resources/Python
>>
>> I get the same error with lldb-3.3.
>>
>>  
>>
>> Thanks!
>>
>>  
>>
>

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