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authorNathan Skrzypczak <nathan.skrzypczak@gmail.com>2021-10-08 14:05:58 +0200
committerDave Wallace <dwallacelf@gmail.com>2021-10-13 15:32:22 +0000
commita2c9509a4ab22380937a2b613fcc518da22f5166 (patch)
tree93e0629de82c99ca4b1f9802083cf9362f1dc325 /extras/lcov/README.md
parent8acc5ee9079d0b03229a72e72a5308e7de0a359a (diff)
docs: convert extras doc md->rst
Type: improvement Change-Id: Ie3b25a86b99098d2b3a21a11fc73234c8ed589d6 Signed-off-by: Nathan Skrzypczak <nathan.skrzypczak@gmail.com>
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-# Code coverage analysis with lcov {#lcov_code_coverage}
-
-## Prerequisites
-
-The Linux gcov and lcov tools are fussy about gcc / g++ compiler
-versions. As of this writing, Ubuntu 18.04 gcov / lcov work with
-these toolchain versions:
-
- $ gcc --version
- gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0
- $ g++ --version
- g++ (Ubuntu 8.3.0-6ubuntu1~18.04.1) 8.3.0
-
-Refer to
-https://askubuntu.com/questions/26498/how-to-choose-the-default-gcc-and-g-version for information on how to install multiple gcc / g++ versions, and
-switch between them.
-
-You'll need to install the following additional packages:
-
- $ sudo apt-get install gcovr ggcov lcov
-
-## Compile an instrumented vpp image
-
-Two ways:
-
- $ cd <workspace-root>
- $ make test-gcov
- $ ## interrupt compilation after building the image
-
-or
- $ cd <workspace-root>/build-root
- $ make PLATFORM=vpp TAG=vpp_gcov vpp-install
-
-## Initialize the lcov database
-
- $ cd <workspace-root>
- $ ./extras/lcov/lcov_prep
- $ make test-gcov or make TEST=my_test test-gcov
- $ # repeat or vary as desired to increase reported coverage
- $ # Generate the report:
- $ ./extras/lcov/lcov_post
-
-You can run vpp manually, do anything you like. Results are cumulative
-until you re-run the "prep" script.
-
-## Look at the results
-
-Point a browser at file:///<workspace-root>/build-root/html/index.html