Coverage Analysis on rtems 4.10 of switch case structures

[Aitor Viana Sanchez]

Hola Juanma,

are you using sparc-gcov <https://github.com/aitorvs/sparc-gcov>? I 
don’t remember whether I ever had a problem with switch-case while 
developing/testing the tool. If you’re using it and its a bug send me 
some files so I can reproduce the problem and fix the bug.
If you’re using another gcov wrapper, have a look at sparc-gcov and see 
whether it fixes the problem.

regards

//avs

On 29/04/15 10:46, Juanma Mail List wrote:

> Hello,
>
> I am doing a coverage analysis for a software code which is based on 
> RTEMS 4.10 and runs on a sparc-leon3 platform from Gaisler. I have 
> problem with the coverage of switch-case structures.
>
> The software mostly processes the commands that are send to it, and do 
> the actions associated to the them. To do the coverage, I have added 
> some wrappers and compiled the software as a static library.
>
> And finally a set of test application do the call to the library and 
> check the coverage.
>
> My framework uses:
>
>     - TSIM/LEON3 SPARC simulator, version 2.0.19 (professional version).
>     - covoar tool and leon3 simulation script  from rtems-testing tools.
>     - sparc-rtems-gcov, lcov and genhtml.
>
> I am not able to cover the switch-case structures. The coverage shows 
> that the execution always hit the first case of the switch-case.
>
> Does anyone seen this behavior before?
>
> Many thanks, Juanma.
>
> *$ *sparc-rtems-gcc -v
>         Reading specs from /opt/rtems-4.10/lib/gcc/sparc-rtems/4.4.6/specs
>         Target: sparc-rtems
>         Configured with: ../../gcc/configure --target=sparc-rtems 
> --with-gnu-as --with-gnu-ld --with-newlib --verbose --enable-threads 
> --enable-languages=c,c++ --disable-nls         
> --prefix=/opt/rtems-4.10 --enable-version-specific-runtime-libs 
> --with-system-zlib --disable-libstdcxx-pch --disable-win32-registry 
> --without-included-gettext
>         Thread model: rtems
>         gcc version 4.4.6 (GCC)
>
>
> *$* sparc-rtems-gcov -v
>     gcov (GCC) 4.4.6
>     Copyright (C) 2010 Free Software Foundation, Inc.
>     This is free software; see the source for copying conditions.
>     There is NO warranty; not even for MERCHANTABILITY or
>     FITNESS FOR A PARTICULAR PURPOSE.
>
> The tests are compiled wth the flags
>
>         CCFLAGS =  -fprofile-arcs -ftest-coverage
>         LDFLAGS = -lgcov -coverage
>
>
> My coverage script:
>
> ./leon3 -c -l 120 simpletest.exe
> echo "Cleaning counters and create intial..."
> lcov --zerocounters --directory "$SOURCE_DIR" > log/gcov.log 2>&1
> lcov --capture --initial --directory "$SOURCE_DIR" --output-file  
> "$OUTPUT_DIR/coverage.info" --gcov-tool "$GCOV" >> log/gcov.log 2>&1
>
> covoar -v -C config $TESTSUITE >> log/gcov.log 2>&1
> lcov --no-checksum -d $SOURCE_DIR  --capture --output-file 
> "$OUTPUT_DIR/coverage.info" --gcov-tool $GCOV --config-file 
> ../rtemsNOMAD/sfs.lcovrc >> log/gcov.log 2>&1
>
> echo "Generating report $OUTPUT_DIR/$REPORTDIR"
> genhtml --highlight --legend --output-directory 
> "$OUTPUT_DIR"/"$REPORTDIR"  coverage.info --config-file 
> ../rtemsNOMAD/sfs.lcovrc >> log/gcov.log 2>&1
>
>
>
>
>
> _______________________________________________
> users mailing list
> users at rtems.org
> http://lists.rtems.org/mailman/listinfo/users

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