build-system: add coverage-report target

This will build a coverage report under the current directory in
reports/coverage. At the users option a report can be generated by
directly invoking something like:

  make foo/bar/coverage-report.html

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
This commit is contained in:
Alex Bennée 2018-06-20 14:04:24 +01:00
parent 990e6a2754
commit fe8bf5f629
2 changed files with 21 additions and 3 deletions

View file

@ -166,9 +166,14 @@ If you want to gather coverage information on a single test the ``make
clean-coverage`` target can be used to delete any existing coverage
information before running a single test.
Reports can be obtained by running ``gcov`` command
on the output files under ``$build_dir/tests/``, please read the
``gcov`` documentation for more information.
You can generate a HTML coverage report by executing ``make
coverage-report`` which will create
./reports/coverage/coverage-report.html. If you want to create it
elsewhere simply execute ``make /foo/bar/baz/coverage-report.html``.
Further analysis can be conducted by running the ``gcov`` command
directly on the various .gcda output files. Please read the ``gcov``
documentation for more information.
QEMU iotests
============