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Bullseye coverage tool is now supported, the command 'covxml' can be used to create the XML report. Once xml reports is available it can be imported using the properties sonar.cxx.coverage.reportPath and sonar.cxx.coverage.itReportPath.
Notes about coverage display in sonar:
Sonar <3.2 provides metrics for line coverage and branch coverage. Bullseye users have function and branch/decision coverage instead, the cxx plugin coverts the second directly into branch coverage however line coverage is far more complex and cannot be correlated directly into function coverage.
Line coverage imported from a bullseye report means than function coverage + line branch coverage ( this second occurs since sonar will not display branch coverage if there isn't a line it associated with it). This means also that overall coverage will be affect in sonar and cannot be compared directly to bullseye results. The following pictures illustrate this for a small example project.
Valgrind
Just tell valgrind to generate XML output. The 'tool' option isn't necessary as 'memcheck' is the default one. Make sure the binaries contain debug info.
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