Fwd: [PATCH 2/4] covoar: Use DWARF to map addresses to source files and lines.

Joel Sherrill joel at rtems.org
Mon May 7 17:42:10 UTC 2018 

On Mon, May 7, 2018 at 12:36 PM, Vijay Kumar Banerjee <
vijaykumar9597 at gmail.com> wrote:

>
> On Mon, 7 May 2018, 22:57 Cillian O'Donnell, <cpodonnell8 at gmail.com>
> wrote:
>
>> Yeah I'm seeing the same as Joel, at least were further then we were :).
>>
>> I've been mostly working on the rtems-tester support, so just to give an
>> update. I spent all day Saturday and today on it. It's taking longer than
>> expected, re-orienting myself and deciding what is needed and not needed
>> now with the changes in covoar. The problems are not difficult, it's just
>> taking some time re-organizing everything. My time is limited during the
>> week, so it'll probably be next weekend before I can finish it off. Vijay
>> if you have time during the week I could push what I have and you could
>> take a stab at some of them and then I could it finish off next weekend if
>> you haven't already.
>>
> please send them, I can look into them for sure.
>

Keep plugging away.

I think there is something wrong in rld related to basename. My first
thought was that the undefined symbol was because we didn't include the
library. Now I think it is because something got misconfigured on
Centos/Fedora/etc. Looking into this.


>
>> On 7 May 2018 at 15:40, Joel Sherrill <joel at rtems.org> wrote:
>>
>>>
>>>
>>> On Mon, May 7, 2018 at 6:01 AM, Vijay Kumar Banerjee <
>>> vijaykumar9597 at gmail.com> wrote:
>>>
>>>> I have added the path to libdwarf here
>>>>
>>>
>>> That worked for me to build but not to link.
>>>
>>> I'm not sure why this rld symbol turned up missing on Centos 7.
>>>
>>> ====================================================
>>>
>>> $ ./waf -v
>>> Waf: Entering directory `/home/joel/rtems-work/rtems-tools/build'
>>> [228/229] Linking build/tester/covoar/trace-converter
>>> 09:38:25 runner ['/usr/bin/g++', 'tester/covoar/TraceConverter.cc.2.o',
>>> 'tester/covoar/TraceList.cc.2.o', 'tester/covoar/TraceReaderBase.cc.2.o',
>>> 'tester/covoar/TraceReaderLogQEMU.cc.2.o', 'tester/covoar/TraceWriterBase.cc.2.o',
>>> 'tester/covoar/TraceWriterQEMU.cc.2.o', '-o/home/joel/rtems-work/
>>> rtems-tools/build/tester/covoar/trace-converter', '-Wl,-Bstatic',
>>> '-Ltester/covoar', '-Lrtemstoolkit', '-lccovoar', '-lrld', '-ldwarf',
>>> '-lelf', '-liberty', '-Wl,-Bdynamic']
>>> [229/229] Linking build/tester/covoar/covoar
>>> 09:38:25 runner ['/usr/bin/g++', 'tester/covoar/covoar.cc.3.o',
>>> '-o/home/joel/rtems-work/rtems-tools/build/tester/covoar/covoar',
>>> '-Wl,-Bstatic', '-Ltester/covoar', '-Lrtemstoolkit', '-lccovoar', '-lrld',
>>> '-ldwarf', '-lelf', '-liberty', '-Wl,-Bdynamic']
>>> tester/covoar/libccovoar.a(DesiredSymbols.cc.1.o): In function
>>> `Coverage::DesiredSymbols::determineSourceLines(Coverage::CoverageRanges*,
>>> Coverage::ExecutableInfo*)':
>>> /home/joel/rtems-work/rtems-tools/build/../tester/covoar/DesiredSymbols.cc:413:
>>> undefined reference to `rld::path::__xpg_basename(std::string const&)'
>>> /home/joel/rtems-work/rtems-tools/build/../tester/covoar/DesiredSymbols.cc:415:
>>> undefined reference to `rld::path::__xpg_basename(std::string const&)'
>>> collect2: error: ld returned 1 exit status
>>>
>>> tester/covoar/libccovoar.a(DesiredSymbols.cc.1.o): In function
>>> `Coverage::DesiredSymbols::determineSourceLines(Coverage::CoverageRanges*,
>>> Coverage::ExecutableInfo*)':
>>> /home/joel/rtems-work/rtems-tools/build/../tester/covoar/DesiredSymbols.cc:413:
>>> undefined reference to `rld::path::__xpg_basename(std::string const&)'
>>> /home/joel/rtems-work/rtems-tools/build/../tester/covoar/DesiredSymbols.cc:415:
>>> undefined reference to `rld::path::__xpg_basename(std::string const&)'
>>> collect2: error: ld returned 1 exit status
>>>
>>> Waf: Leaving directory `/home/joel/rtems-work/rtems-tools/build'
>>> Build failed
>>>  -> task in 'trace-converter' failed with exit status 1:
>>>         {task 34721616: cxxprogram TraceConverter.cc.2.o,
>>> TraceList.cc.2.o,TraceReaderBase.cc.2.o,TraceReaderLogQEMU.cc.2.o,
>>> TraceWriterBase.cc.2.o,TraceWriterQEMU.cc.2.o -> trace-converter}
>>> ['/usr/bin/g++', 'tester/covoar/TraceConverter.cc.2.o',
>>> 'tester/covoar/TraceList.cc.2.o', 'tester/covoar/TraceReaderBase.cc.2.o',
>>> 'tester/covoar/TraceReaderLogQEMU.cc.2.o', 'tester/covoar/TraceWriterBase.cc.2.o',
>>> 'tester/covoar/TraceWriterQEMU.cc.2.o', '-o/home/joel/rtems-work/
>>> rtems-tools/build/tester/covoar/trace-converter', '-Wl,-Bstatic',
>>> '-Ltester/covoar', '-Lrtemstoolkit', '-lccovoar', '-lrld', '-ldwarf',
>>> '-lelf', '-liberty', '-Wl,-Bdynamic']
>>>  -> task in 'covoar' failed with exit status 1:
>>>         {task 34820256: cxxprogram covoar.cc.3.o -> covoar}
>>> ['/usr/bin/g++', 'tester/covoar/covoar.cc.3.o', '-o/home/joel/rtems-work/
>>> rtems-tools/build/tester/covoar/covoar', '-Wl,-Bstatic',
>>> '-Ltester/covoar', '-Lrtemstoolkit', '-lccovoar', '-lrld', '-ldwarf',
>>> '-lelf', '-liberty', '-Wl,-Bdynamic']
>>> ====================================================
>>>
>>>
>>>>
>>>> ---
>>>>
>>>> diff --git a/tester/covoar/wscript b/tester/covoar/wscript
>>>> index 55d5ec9..dd4ad83 100644
>>>> --- a/tester/covoar/wscript
>>>> +++ b/tester/covoar/wscript
>>>> @@ -63,6 +63,7 @@ def build(bld):
>>>>      rtl_includes = [rtemstoolkit,
>>>>  		    rtemstoolkit + '/elftoolchain/libelf',
>>>>  		    rtemstoolkit + '/elftoolchain/common',
>>>> +		    rtemstoolkit + '/elftoolchain/libdwarf',
>>>>  		    rtemstoolkit + '/libiberty']
>>>>      if bld.env.DEST_OS == 'win32':
>>>>          rtl_includes += [rtemstoolkit + '/win32']
>>>>
>>>>
>>>>
>>>> -- vijay
>>>>
>>>> On 7 May 2018 at 13:30, Vijay Kumar Banerjee <vijaykumar9597 at gmail.com>
>>>> wrote:
>>>>
>>>>>
>>>>> On 6 May 2018 at 13:29, Chris Johns <chrisj at rtems.org> wrote:
>>>>>
>>>>>> On 6/5/18 5:28 pm, Vijay Kumar Banerjee wrote:
>>>>>>
>>>>>>> On 6 May 2018 at 08:54, Chris Johns <chrisj at rtems.org <mailto:
>>>>>>> chrisj at rtems.org>> wrote:
>>>>>>>
>>>>>>>         Would you please try `waf clean build` to see if rebuilding
>>>>>>>         everything fixes this?
>>>>>>>
>>>>>>> still getting the same error .
>>>>>>> I'm using g++ 7.3.1 on fedora 27.
>>>>>>>
>>>>>>
>>>>>> OK
>>>>>>
>>>>>> If you have changed something in the code, can you please send a
>>>>>>> patch for the same ?
>>>>>>>
>>>>>>
>>>>>> I have not changed anything. I do not have a Linux box to try.
>>>>>>
>>>>>> I tried to do it afresh as well, it's still failing to build.
>>>>> Can someone please try to build it in a linux system ?
>>>>>
>>>>>> Chris
>>>>>>
>>>>>
>>>>>
>>>>
>>>> _______________________________________________
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>>>>
>>>
>>>
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>>
>>
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