How can I use the covoar tool?

Vijay Kumar Banerjee vijaykumar9597 at gmail.com
Wed Mar 20 16:11:32 UTC 2019 

On Wed, 20 Mar 2019 at 21:20, Vijay Kumar Banerjee <vijaykumar9597 at gmail.com>
wrote:

>
>
>
>
> On Wed, 20 Mar 2019 at 21:11, Sebastian Huber <
> sebastian.huber at embedded-brains.de> wrote:
>
>> Hello,
>>
>> thanks for your hints.
>>
>> On 20/03/2019 16:31, Vijay Kumar Banerjee wrote:
>> >
>> >
>> >
>> >
>> > On Wed, 20 Mar 2019 at 17:46, Sebastian Huber
>> > <sebastian.huber at embedded-brains.de
>> > <mailto:sebastian.huber at embedded-brains.de>> wrote:
>> >
>> >     Hello,
>> >
>> >     the RTEMS project has a covoar tool:
>> >
>> >     https://git.rtems.org/rtems-tools/tree/tester/covoar
>> >
>> >     I have seen some reports generated by it, but I never used it
>> >     myself. I
>> >     have trouble to find out how it works. There is nothing in the
>> >     documentation:
>> >
>> >     cd rtems-docs
>> >     grep -ri covoar .
>> >
>> >     There is some documentation available here:
>> >
>> >
>> https://devel.rtems.org/wiki/GCI/Documentation/CoverageAnalysis/Coverage
>> >
>> >     If I invoke the rtems-test like this in the erc32 BSP build
>> >     directory, I
>> >     get an error:
>> >
>> >     rtems-test --rtems-bsp=erc32-sis --rtems-tools=/build/rtems/5
>> >     --coverage
>> >     --target=sparc-rtems5 .
>> >     RTEMS Testing - Tester, 5.0.not_released
>> >       Command Line: /build/rtems/5/bin/rtems-test --rtems-bsp=erc32-sis
>> >     --rtems-tools=/build/rtems/5 --coverage --target=sparc-rtems5 .
>> >       Python: 3.6.5 (default, Mar 31 2018, 19:45:04) [GCC]
>> >     Host: Linux-4.12.14-lp150.12.48-default-x86_64-with-glibc2.3.4
>> (Linux
>> >     huber-nb-linux.suse 4.12.14-lp150.12.48-default #1 SMP Tue Feb 12
>> >     14:01:48 UTC 2019 (268f014) x86_64 x86_64)
>> >     Traceback (most recent call last):
>> >        File "/build/rtems/5/share/rtems/tester/rt/cmd-test.py", line
>> >     42, in
>> >     <module>
>> >          test.run(sys.argv[1:], command_path = base)
>> >        File "/build/rtems/5/share/rtems/tester/rt/test.py", line 300,
>> >     in run
>> >          trace = cov_trace)
>> >        File "/build/rtems/5/share/rtems/tester/rt/coverage.py", line
>> >     363, in
>> >     __init__
>> >          self.target = self.macros['target']
>> >        File "/build/rtems/5/share/rtems/rtemstoolkit/macros.py", line
>> >     181,
>> >     in __getitem__
>> >          raise IndexError('key: %s' % (key))
>> >     IndexError: key: target
>> >
>> > Hi,
>> >
>> > The covoar needs the .cov files to run which is supposed to be
>> > generated by a command like
>> > this
>> > ====
>> > $HOME/development/rtems/5/bin/sparc-rtems5-sis -nouartrx -r -tlim 600
>> > s -cov
>> >
>> $HOME/development/rtems/kernel/erc32/sparc-rtems5/c/erc32/testsuites/samples/hello.exe
>> > ====
>> > But this runs into a segmentation fault. If my command is right
>> > (Please correct me if it isn't)
>> > then I think it's because the sis coverage is not supported for erc32.
>> :/
>>
>> Yes, I get also a segmentation fault. For the leon3 it seems to work:
>>
>> sparc-rtems5-sis -leon3 -nouartrx -r -tlim 200 s -cov
>> ./sparc-rtems5/c/leon3/testsuites/samples/hello.exe
>>
>>   SIS - SPARC/RISCV instruction simulator 2.13,  copyright Jiri Gaisler
>> 2019
>>   Bug-reports to jiri at gaisler.se
>>
>>   LEON3 emulation enabled, 1 cpus online, delta 50 clocks
>>
>>
>>
>> *** BEGIN OF TEST HELLO WORLD ***
>> *** TEST VERSION: 5.0.0.45e418f922af81c9cb8d485c789ba73c95bda813
>> *** TEST STATE: EXPECTED-PASS
>> *** TEST BUILD: RTEMS_DEBUG RTEMS_NETWORKING RTEMS_POSIX_API RTEMS_SMP
>> *** TEST TOOLS: 7.4.0 20181206 (RTEMS 5, RSB
>> c41b9d0df7e5b4a5056ca50c2534380a44e92769, Newlib 3e24fbf6f)
>> Hello World
>>
>> *** END OF TEST HELLO WORLD ***
>>
>> cpu 0 in error mode (tt = 0x80)
>>     165222  400103e0  91d02000  ta  0
>>
>> saved code coverage to
>> ./sparc-rtems5/c/leon3/testsuites/samples/hello.exe.cov
>>
>> >
>> > about rtems-test,
>> > I have attached a patch that adds erc32-sis-cov.ini, this will fix the
>> > KeyError you're seeing,
>> > but it will return with error 10 as it's trying to run the above
>> > command. If you run rtems-test
>> > with `--no-clean` and `--coverage` options, you'll have a
>> > erc32-sis-symbols.ini file (and the .cov
>> > files, when they're supported, like in leon3), which can be used to
>> > run covoar directly like
>> > below ( but this won't run now as we don't have .cov file )
>>
>> I tried to use leon3-sis-cov and I get:
>>
>> rtems-test --rtems-bsp=leon3-sis-cov --rtems-tools=/build/rtems/5
>> --coverage .
>> RTEMS Testing - Tester, 5.0.not_released
>>   Command Line: /build/rtems/5/bin/rtems-test --rtems-bsp=leon3-sis-cov
>> --rtems-tools=/build/rtems/5 --coverage .
>>   Python: 3.6.5 (default, Mar 31 2018, 19:45:04) [GCC]
>> Host: Linux-4.12.14-lp150.12.48-default-x86_64-with-glibc2.3.4 (Linux
>> huber-nb-linux.suse 4.12.14-lp150.12.48-default #1 SMP Tue Feb 12
>> 14:01:48 UTC 2019 (268f014) x86_64 x86_64)
>> Traceback (most recent call last):
>>    File "/build/rtems/5/share/rtems/tester/rt/cmd-test.py", line 42, in
>> <module>
>>      test.run(sys.argv[1:], command_path = base)
>>    File "/build/rtems/5/share/rtems/tester/rt/test.py", line 300, in run
>>      trace = cov_trace)
>>    File "/build/rtems/5/share/rtems/tester/rt/coverage.py", line 363, in
>> __init__
>>      self.target = self.macros['target']
>>    File "/build/rtems/5/share/rtems/rtemstoolkit/macros.py", line 181,
>> in __getitem__
>>      raise IndexError('key: %s' % (key))
>> IndexError: key: target
>>
>> this works fine for me ...
> $HOME/development/rtems/rtems-tools/tester/rtems-test
> --rtems-tools=$HOME/development/rtems/5 --rtems-bsp=leon3-qemu-cov
> --coverage --log=leon3-test.log
> /home/lunatic/development/rtems/kernel/leon3/sparc-rtems5/c/leon3/testsuites/samples/hello.exe
>
> Sorry about the wrong bsp name, this works fine as well :)
$HOME/development/rtems/rtems-tools/tester/rtems-test
--rtems-tools=$HOME/development/rtems/5 --rtems-bsp=leon3-sis-cov
--coverage --no-clean --log=leon3-test.log
/home/lunatic/development/rtems/kernel/leon3/sparc-rtems5/c/leon3/testsuites/samples/hello.exe

> The leon3-sis-cov was added recently, so you might need to rebase to
> current master. If
> it still gives error with python 3. Then you can try `export
> RTEMS_PYTHON_OVERRIDE='python2'`
> to force it to use python2.
>
>> >
>> > covoar -S
>> >
>> $HOME/development/rtems/test/rtems-tools/tester/rtems/testing/coverage/erc32-sis-symbols.ini
>>
>> > \
>> > -O coverage
>> >
>> -E$HOME/development/rtems/test/rtems-tools/tester/rtems/testing/coverage/Explanations.txt
>>
>> > \
>> > -p RTEMS-5 sparc-rtems5/c/erc32/testsuites/samples/hello.exe
>>
>> Do I have to call rtems-test first and then covoar or is it called by
>> rtems-test itself?
>>
>> The rtems-test automatically calls covoar, there's no need to call covoar
> separately unless
> for debugging purpose.
>
>> --
>> Sebastian Huber, embedded brains GmbH
>>
>> Address : Dornierstr. 4, D-82178 Puchheim, Germany
>> Phone   : +49 89 189 47 41-16
>> Fax     : +49 89 189 47 41-09
>> E-Mail  : sebastian.huber at embedded-brains.de
>> PGP     : Public key available on request.
>>
>> Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG.
>>
>>
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