error while building leon3 with gcov flags

[Joel Sherrill]

On Wed, Jun 6, 2018, 3:56 PM Vijay Kumar Banerjee <vijaykumar9597 at gmail.com>
wrote:

> On 7 June 2018 at 01:48, Joel Sherrill <joel at rtems.org> wrote:
>
>>
>>
>> On Wed, Jun 6, 2018, 2:07 PM Vijay Kumar Banerjee <
>> vijaykumar9597 at gmail.com> wrote:
>>
>>> On 6 June 2018 at 20:49, Joel Sherrill <joel at rtems.org> wrote:
>>>
>>>> I can't duplicate this. My configure command was:
>>>>
>>>> ../rtems/configure --target=sparc-rtems5 --enable-rtemsbsp=leon3
>>>> --prefix=/home/joel/rtems-work/tools/5 \
>>>>    --disable-networking --enable-posix --disable-smp
>>>> --disable-multiprocessing \
>>>>    --enable-tests --enable-cxx --enable-maintainer-mode
>>>>
>>>> What was yours?
>>>>
>>>> I didn't have --enable-cxx and --enable-maintainer-more.
>>>
>>> I made some tries and somehow it's perfectly working now.
>>>
>>> I am trying to find out now how covoar generates the reports.
>>> I made a file with a list of all gcno in score/ and run with -g argument
>>> now I'mg seeing the following error while running covoar
>>>
>>> ======================
>>> Generating Gcov reports...
>>> Processing file: libscore_a-allocatormutex.gcno
>>> Unable to open libscore_a-allocatormutex.gcno
>>> Processing file: libscore_a-apimutexisowner.gcno
>>> Unable to open libscore_a-apimutexisowner.gcno
>>> Processing file: libscore_a-apimutexlock.gcno
>>> Unable to open libscore_a-apimutexlock.gcno
>>> Processing file: libscore_a-apimutexunlock.gcno
>>> Unable to open libscore_a-apimutexunlock.gcno
>>> Processing file: libscore_a-chain.gcno
>>> Unable to open libscore_a-chain.gcno
>>> Processing file: libscore_a-chainnodecount.gcno
>>> .
>>> .
>>> .
>>> ======================
>>>
>>
>> I suspect this is another instance of the path issues inside the build
>> tree you and Cillian fixed earlier.
>>
>> correcting the path worked.
>

Submit a patch for this. It needs fixing to get 5onyour next issue.

>
> Now I'm getting this error.
>
> Generating Gcov reports...
> Processing file:
> sparc-rtems5/c/leon3/cpukit/score/src/libscore_a-kern_tc.gcno
> ERROR: Unable to read string from gcov file
> ERROR: Unable to read string length from gcov file
> ERROR: Unable to read Function starting line number
> Segmentation fault (core dumped)
>

Welcome to GSoC! You are now in new territory. :)

Dig in and see what went wrong. Be aware.that GCC file formats may (or may
not) be subject to.changing over time and this could just be bitrot.

Gcov-dump is installed with the compiler.

You should check it we have a .h file describing the file and it is out of
date.

Also I think we now should bring the gsov maintainer in.

Good job!


>
>>>> On Wed, Jun 6, 2018 at 9:40 AM, Vijay Kumar Banerjee <
>>>> vijaykumar9597 at gmail.com> wrote:
>>>>
>>>>> Hello,
>>>>>
>>>>> I have added the following changes in the
>>>>> bsps/sparc/leon3/config/leon3.cfg
>>>>>
>>>>> ----------
>>>>> CFLAGS_OPTIMIZE_V = -Os -g
>>>>> CFLAGS_OPTIMIZE_V += -ftest-coverage
>>>>> -------
>>>>>
>>>>> While trying to build with these flags, I got a bunch of
>>>>> the following errors:
>>>>>
>>>>> ==========
>>>>> {standard input}: Assembler messages:
>>>>> {standard input}:6510: Error: can't resolve `.data._SPARC_Counter'
>>>>> {.data._SPARC_Counter section} - `.LLtext0' {.text section}
>>>>> {standard input}:6511: Error: can't resolve `.data._SPARC_Counter'
>>>>> {.data._SPARC_Counter section} - `.LLtext0' {.text section}
>>>>>
>>>>> ===================
>>>>>
>>>>> after the `make install` I do get a lot of .gcno files, and no
>>>>> executables.
>>>>>
>>>>> -- vijay
>>>>>
>>>>> _______________________________________________
>>>>> devel mailing list
>>>>> devel at rtems.org
>>>>> http://lists.rtems.org/mailman/listinfo/devel
>>>>>
>>>>
>>>>
>>>
>
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