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Documenation: call out `lcov` as required 

Code coverage requires `lcov`, so update the docs to call it out
specifically.

Signed-off-by: Paul Fagerburg <pfagerburg@google.com>
Change-Id: Ie2898faa5188a7174c4e56ba34f1a4f02f939b03
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58633
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
This commit is contained in:
Paul Fagerburg 2021-10-26 13:20:25 -06:00 committed by Patrick Georgi
parent e008c469c3
commit aae5cdf1aa
1 changed files with 3 additions and 0 deletions
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Documentation/technotes/2021-05-code-coverage.md
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@ -4,6 +4,9 @@ Code coverage for the coreboot unit tests allows us to see what lines of
code in the coreboot library are covered by unit tests, and allows a test code in the coreboot library are covered by unit tests, and allows a test
author to see where they need to add test cases for additional coverage. author to see where they need to add test cases for additional coverage.
Code coverage requires `lcov`; install the tool if necessary by
`sudo apt install lcov` or the equivalent for your system.
Enable code coverage in your unit test build by setting the environment Enable code coverage in your unit test build by setting the environment
variable `COV` to 1; either `export COV=1` in your shell, or add it to your variable `COV` to 1; either `export COV=1` in your shell, or add it to your
`make` command, e.g. `COV=1 make unit-tests`. `make` command, e.g. `COV=1 make unit-tests`.