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

[Chris Johns]

On 6/5/18 9:49 am, Chris Johns wrote:
> On 6/5/18 7:54 am, Vijay Kumar Banerjee wrote:
>> On 6 May 2018 at 03:05, Chris Johns <chrisj at rtems.org <mailto:chrisj at rtems.org>>
>> wrote:
>>
>>      Could you please check covoar’s wscript has the libdwarf path added?
>>
>> the path to elftoolchain/libdwarf is not added in covoar
>>
> 
> Thanks. I am on FreeBSD and it uses the elftoolchain for it's libdwarf so I did
> not see the error as the header matches the one in the rtemstoolkit's libdwarf.
> 
>>      Also check waf with -v.
>>
>>   after adding the path it gives the following error with -v
>>
>> --
>> Waf: Entering directory `/home/lunatic/development/rtems/test/rtems-tools/build'
>> [227/229] Linking build/tester/covoar/trace-converter
>> 03:22:35 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/lunatic/development/rtems/test/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
>> 03:22:35 runner ['/usr/bin/g++', 'tester/covoar/covoar.cc.3.o',
>> '-o/home/lunatic/development/rtems/test/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/lunatic/development/rtems/test/rtems-tools/build/../tester/covoar/DesiredSymbols.cc:413:
>> undefined reference to
>> `rld::path::__xpg_basename(std::__cxx11::basic_string<char,
>> std::char_traits<char>, std::allocator<char> > const&)'
>> /home/lunatic/development/rtems/test/rtems-tools/build/../tester/covoar/DesiredSymbols.cc:415:
>> undefined reference to
>> `rld::path::__xpg_basename(std::__cxx11::basic_string<char,
>> std::char_traits<char>, std::allocator<char> > const&)'
>> collect2: error: ld returned 1 exit status
> 
> Hmm that is a weird error, the waf script looks to me like it has c++11 support
> enabled correctly and the code looks fine to me so I do not understand why this
> is happening. I do not see this on FreeBSD with clang.
> 
> Would you please try `waf clean build` to see if rebuilding everything fixes this?
> 
> I will try the patches on Windows, it has gcc as a compiler.
> 

The code built on Windows without error. The MSYS2 g++ is 7.2.0 so I am 
not sure about this.

Chris