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build-system: add clean-coverage target

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This can be used to remove any stale coverage data before any
particular test run. This is useful for analysing individual tests.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>---
This commit is contained in:
Alex Bennée 2018-06-20 12:34:45 +01:00
parent 0708e6476f
commit 990e6a2754
2 changed files with 19 additions and 3 deletions
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11
docs/devel/testing.rst
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@ -161,9 +161,14 @@ GCC gcov support
``gcov`` is a GCC tool to analyze the testing coverage by
instrumenting the tested code. To use it, configure QEMU with
``--enable-gcov`` option and build. Then run ``make check`` as usual.
Reports can be obtained by running ``gcov`` command on the output
files under ``$build_dir/tests/``, please read the ``gcov``
documentation for more information.
If you want to gather coverage information on a single test the ``make
clean-coverage`` target can be used to delete any existing coverage
information before running a single test.
Reports can be obtained by running ``gcov`` command
on the output files under ``$build_dir/tests/``, please read the
``gcov`` documentation for more information.
QEMU iotests
============