Signed-off-by: Cole Robinson <crobinso@xxxxxxxxxx>
---
docs/hacking.html.in | 29 +++++++++++++++++++++++++++++
1 file changed, 29 insertions(+)
diff --git a/docs/hacking.html.in b/docs/hacking.html.in
index f99d143b7b..56608fbc9e 100644
--- a/docs/hacking.html.in
+++ b/docs/hacking.html.in
@@ -1412,5 +1412,34 @@ int foo()
in the same way, but still make sure they get reviewed if non-trivial.
</li>
</ul>
+ <h2><a id="coverage">Code coverage reports</a></h2>
+
+ <p>
+ Code coverage HTML reports can be generated with:
+ </p>
+
+<pre>
+ make coverage
+</pre>
+
+ <p>
+ Reports will be generated in the <code>cov/</code> directory. Point a
+ web browser at <code>cov/index.html</code> for the full report.
+ </p>
+
+ <p>
+ The <code>make coverage</code> target is provided by <code>gnulib</code>.
+ It is a convenience helper for calling the following 3 targets in order.
+ It may be useful to occasionally call these directly.
+
+ <ul>
+ <li><code>make init-coverage</code>: run <code>make clean</code> and
+ remove all code coverage counter files (*.gcno, etc)</li>
+ <li><code>make build-coverage</code>: run <code>make</code> and
+ <code>make check</code> with <code>CFLAGS</code> filled in with
+ necessary coverage flags.</li>
+ <li><code>make gen-coverage</code>: generate the HTML report</li>
+ </ul>
+ </p>
</body>
</html>
--
2.20.1
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