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build-system: add coverage-report target

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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
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13
Makefile
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@ -986,6 +986,16 @@ docs/interop/qemu-qmp-ref.dvi docs/interop/qemu-qmp-ref.html \
docs/interop/qemu-qmp-ref.txt docs/interop/qemu-qmp-ref.7: \ docs/interop/qemu-qmp-ref.txt docs/interop/qemu-qmp-ref.7: \
docs/interop/qemu-qmp-ref.texi docs/interop/qemu-qmp-qapi.texi docs/interop/qemu-qmp-ref.texi docs/interop/qemu-qmp-qapi.texi
# Reports/Analysis
%/coverage-report.html:
@mkdir -p $*
$(call quiet-command,\
gcovr -p --html --html-details -o $@, \
"GEN", "coverage-report.html")
.PHONY: coverage-report
coverage-report: $(CURDIR)/reports/coverage/coverage-report.html
ifdef CONFIG_WIN32 ifdef CONFIG_WIN32
@ -1095,6 +1105,9 @@ endif
@echo 'Documentation targets:' @echo 'Documentation targets:'
@echo ' html info pdf txt' @echo ' html info pdf txt'
@echo ' - Build documentation in specified format' @echo ' - Build documentation in specified format'
ifdef CONFIG_GCOV
@echo ' coverage-report - Create code coverage report'
endif
@echo '' @echo ''
ifdef CONFIG_WIN32 ifdef CONFIG_WIN32
@echo 'Windows targets:' @echo 'Windows targets:'

11
docs/devel/testing.rst
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 clean-coverage`` target can be used to delete any existing coverage
information before running a single test. information before running a single test.
Reports can be obtained by running ``gcov`` command You can generate a HTML coverage report by executing ``make
on the output files under ``$build_dir/tests/``, please read the coverage-report`` which will create
``gcov`` documentation for more information. ./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 QEMU iotests
============ ============