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authorTom Hughes <tomhughes@chromium.org>2022-09-21 14:08:36 -0700
committerTom Hughes <tomhughes@chromium.org>2022-09-22 12:59:38 -0700
commitc453fd704268ef72de871b0c5ac7a989de662334 (patch)
treefcf6ce5810f9ff9e3c8cce434812dd75492269ed /docs/code_coverage.md
parent6c1587ca70f558b4f96b3f0b18ad8b027d3ba99d (diff)
parent28712dae9d7ed1e694f7622cc083afa71090d4d5 (diff)
downloadchrome-ec-firmware-fpmcu-dartmonkey-release.tar.gz
Merge remote-tracking branch cros/main into firmware-fpmcu-dartmonkey-releasefirmware-fpmcu-dartmonkey-release
Generated by: ./util/update_release_branch.py --board dartmonkey --relevant_paths_file ./util/fingerprint-relevant-paths.txt firmware-fpmcu-dartmonkey-release Relevant changes: git log --oneline 6c1587ca70..28712dae9d -- board/nocturne_fp board/dartmonkey common/fpsensor docs/fingerprint driver/fingerprint util/getversion.sh ded9307b79 util/getversion.sh: Fix version when not in a git repo 956055e692 board: change Google USB vendor info 71b2ef709d Update license boilerplate text in source code files 33e11afda0 Revert "fpsensor: Build fpsensor source file with C++" c8d0360723 fpsensor: Build fpsensor source file with C++ bc113abd53 fpsensor: Fix g++ compiler error 150a58a0dc fpsensor: Fix fp_set_sensor_mode return type b33b5ce85b fpsensor: Remove nested designators for C++ compatibility 2e864b2539 tree-wide: const-ify argv for console commands 56d8b360f9 test: Add test for get ikm failure when seed not set 3a3d6c3690 test: Add test for fpsensor trivial key failure 233e6bbd08 fpsensor_crypto: Abstract calls to hmac_SHA256 0a041b285b docs/fingerprint: Typo correction c03fab67e2 docs/fingerprint: Fix the path of fputils.py 0b5d4baf5a util/getversion.sh: Fix empty file list handling 6e128fe760 FPMCU dev board environment with Satlab 3eb29b6aa5 builtin: Move ssize_t to sys/types.h 345d62ebd1 docs/fingerprint: Update power numbers for latest dartmonkey release c25ffdb316 common: Conditionally support printf %l and %i modifiers 9a3c514b45 test: Add a test to check if the debugger is connected 54e603413f Move standard library tests to their own file 43fa6b4bf8 docs/fingerprint: Update power numbers for latest bloonchipper release 25536f9a84 driver/fingerprint/fpc/bep/fpc_sensor_spi.c: Format with clang-format 4face99efd driver/fingerprint/fpc/libfp/fpc_sensor_pal.h: Format with clang-format 738de2b575 trng: Rename rand to trng_rand 14b8270edd docs/fingerprint: Update dragonclaw power numbers 0b268f93d1 driver/fingerprint/fpc/libfp/fpc_private.c: Format with clang-format f80da163f2 driver/fingerprint/fpc/libfp/fpc_private.h: Format with clang-format a0751778f4 board/nocturne_fp/ro_workarounds.c: Format with clang-format 5e9c85c9b1 driver/fingerprint/fpc/libfp/fpc_sensor_pal.c: Format with clang-format c1f9dd3cf8 driver/fingerprint/fpc/libfp/fpc_bio_algorithm.h: Format with clang-format eb1e1bed8d driver/fingerprint/fpc/libfp/fpc1145_private.h: Format with clang-format 6e7b611821 driver/fingerprint/fpc/bep/fpc_bio_algorithm.h: Format with clang-format e0589cd5e2 driver/fingerprint/fpc/bep/fpc1035_private.h: Format with clang-format 58f0246dbe board/nocturne_fp/board_ro.c: Format with clang-format 7905e556a0 common/fpsensor/fpsensor_crypto.c: Format with clang-format 21289d170c driver/fingerprint/fpc/bep/fpc1025_private.h: Format with clang-format 98a20f937e common/fpsensor/fpsensor_state.c: Format with clang-format a2d255d8af common/fpsensor/fpsensor.c: Format with clang-format 84e53a65da board/nocturne_fp/board.h: Format with clang-format 73055eeb3f driver/fingerprint/fpc/bep/fpc_private.c: Format with clang-format 0f7b5cb509 common/fpsensor/fpsensor_private.h: Format with clang-format 1ceade6e65 driver/fingerprint/fpc/bep/fpc_private.h: Format with clang-format dca9d74321 Revert "trng: Rename rand to trng_rand" a6b0b3554f trng: Rename rand to trng_rand 28d0b75b70 third_party/boringssl: Remove unused header BRANCH=None BUG=b:244387210 b:242720240 b:215613183 b:242720910 b:236386294 BUG=b:234181908 b:244781166 b:234781655 b:234143158 b:234181908 BUG=b:237344361 b:236025198 b:234181908 b:180945056 chromium:1098010 BUG=b:246424843 b:234181908 b:131913998 TEST=`make -j buildall` TEST=./util/run_device_tests.py --board dartmonkey Test "aes": PASSED Test "cec": PASSED Test "cortexm_fpu": PASSED Test "crc": PASSED Test "flash_physical": PASSED Test "flash_write_protect": PASSED Test "fpsensor_hw": PASSED Test "fpsensor_spi_ro": PASSED Test "fpsensor_spi_rw": PASSED Test "fpsensor_uart_ro": PASSED Test "fpsensor_uart_rw": PASSED Test "mpu_ro": PASSED Test "mpu_rw": PASSED Test "mutex": PASSED Test "pingpong": PASSED Test "printf": PASSED Test "queue": PASSED Test "rollback_region0": PASSED Test "rollback_region1": PASSED Test "rollback_entropy": PASSED Test "rtc": PASSED Test "sha256": PASSED Test "sha256_unrolled": PASSED Test "static_if": PASSED Test "stdlib": PASSED Test "system_is_locked_wp_on": PASSED Test "system_is_locked_wp_off": PASSED Test "timer_dos": PASSED Test "utils": PASSED Test "utils_str": PASSED Test "panic_data_dartmonkey_v2.0.2887": PASSED Test "panic_data_nocturne_fp_v2.2.64": PASSED Test "panic_data_nami_fp_v2.2.144": PASSED Force-Relevant-Builds: all Signed-off-by: Tom Hughes <tomhughes@chromium.org> Change-Id: I2c312583a709fedae8fe11d92c22328c3b634bc7
Diffstat (limited to 'docs/code_coverage.md')
-rw-r--r--docs/code_coverage.md103
1 files changed, 94 insertions, 9 deletions
diff --git a/docs/code_coverage.md b/docs/code_coverage.md
index a15c61b358..7f0c544692 100644
--- a/docs/code_coverage.md
+++ b/docs/code_coverage.md
@@ -23,6 +23,29 @@ data into a code coverage report using the `lcov` and `genhtml` tools.
The coverage report top-level page is `build/coverage/coverage_rpt/index.html`.
+To get a report for one specific board's coverage run these commands:
+
+```
+BOARD=eldrid
+make -j$(nproc) build/coverage/initial-${BOARD}.info test-coverage
+# Merge board coverage and test coverage
+lcov -o build/coverage/${BOARD}_merged.info --rc lcov_branch_coverage=1 \
+ -a build/coverage/initial-${BOARD}.info -a build/coverage/lcov.info
+# Filter out some unhelpful paths
+lcov -o build/coverage/${BOARD}_filtered.info --rc lcov_branch_coverage=1 \
+ -r build/coverage/${BOARD}_merged.info ${PWD}'/third_party/**' \
+ ${PWD}'/build/**' '/usr/include/**' '/usr/lib/**' '${PWD}/test/**' \
+ ${PWD}'/private/fingerprint/google-fpalg/mcutest/**'
+# Restrict to only files used by the board
+grep "SF:" "build/coverage/initial-${BOARD}.info" | sort -u | \
+ sed -e 's|^SF:||' | xargs lcov --rc lcov_branch_coverage=1 \
+ -o build/coverage/${BOARD}_final.info \
+ -e build/coverage/${BOARD}_filtered.info
+# Generate HTML
+genhtml --branch-coverage -q -o build/coverage/${BOARD}_rpt \
+ -t "${BOARD} coverage" -s build/coverage/${BOARD}_final.info
+```
+
### Noise in the build output
When building for code coverage, you may see multiple warnings of the form
@@ -38,28 +61,90 @@ appear to be caused in part by using relative paths instead of absolute paths.)
To build the Zephyr unit tests for code coverage run:
-`zmake test --host-tests-only --coverage`
-`genhtml -q -o build/zephyr/coverage_rpt/ build/zephyr/all_tests.info`
+`./twister -v -i --coverage -p native_posix -p unit_testing`
The coverage report top-level page is
-`build/zephyr/coverage_rpt/index.html`.
+`twister-out/coverage/index.html`.
However you probably want to merge that with a single board's coverage report
also, so that you can include code that is not part of any test as well.
```
zmake build --coverage herobrine
-zmake test --host-tests-only --coverage
+./twister -v -i --coverage -p native_posix -p unit_testing
genhtml -q -s --branch-coverage -o build/zephyr/coverage_rpt/ \
- build/zephyr/all_tests.info build/zephyr/herobrine/output/zephyr.info
+ twister-out/coverage.info build/zephyr/herobrine/output/zephyr.info
```
The coverage report top-level page is
`build/zephyr/coverage_rpt/index.html`.
For coverage report for a single test you can run:
-`zmake test --coverage <TESTNAME>`
+`./twister -v -i --coverage -p native_posix -p unit_testing -s <pathToTest>/<testName>`
+
+Example of running test tasks.default from zephyr/test/tasks/testcase.yaml:
+`./twister -v -i --coverage -p native_posix -p unit_testing -s zephyr/test/tasks/tasks.default`
+
+## Code Coverage in CQ
+
+There are several ways to see the code coverage without running the tests
+locally, depending on what information you want to see. Many of the links
+below are only available to Googlers or TVCs with google.com accounts.
+
+### Code search
+
+To see the coverage of each directory, visit
+http://cs/chromeos_public/src/platform/ec/ and turn on the "Directory Coverage"
+layer. The denominator for the percentage covered is not clear, so these
+numbers are really only useful if you are looking in very general terms. I.e.
+zephyr is covered better than common. Don't get too fixated on the specific
+percent shown. The results are also the last 7 days of builds combined, so there
+may be some odd results if the code has changed greatly in the last week.
+
+![Directory coverage screenshot](images/dir_coverage.png)
+
+The coverage of files is much more useful. If you are about to write a test
+and not sure what to focus on, you can look at the uncovered lines in code
+search. Visit [a file](http://cs/chromeos_public/src/platform/ec/common/mkbp_event.c)
+in code search and make sure the "File Coverage" layer is enabled. Lines that
+are not covered by any test are in red, tested lines are in green, and uncolored
+lines were not built at all in any board or test.
+
+![File coverage screenshot](images/file_coverage.png)
+
+### Presubmit
+
+Every gerrit cl, if you did a dry-run or full run of the CQ will have coverage
+results. They are slightly difficult to get to, but are very useful.
+
+On the "Checks" tab, find the build "firmware-zephyr-cov-cq" and open it.
+
+![Gerrit screenshot](images/gerrit_coverage_links.png)
+
+On the LUCI page, expand the "test firmware" step and click on "response". That
+will show you a very basic summary of the coverage.
+
+![LUCI screenshot test firmware](images/test_firmware.png)
+
+For a detailed report, you can download the coverage report. Expand "try to
+upload artifacts", then "upload artifacts", and click on "gs upload dir".
+
+![LUCI screenshot artifacts](images/artifacts.png)
+
+From there, click on the download icon for the html.tbz2 file, and untar it
+locally. Open lcov_rpt/index.html to view your results.
+
+![GCS screenshot](images/download_html.png)
+
+### Post-submit
+
+If you are interested in the state of the world, not a specific CL, and the
+coverage info in Code Search is not sufficient, you can download the coverage
+report from the post-submit CQ build.
+
+Visit https://ci.chromium.org/p/chromeos/builders/postsubmit/firmware-zephyr-cov-postsubmit
+and click on the latest successful build.
+
+![LUCI post-submit screenshot](images/postsubmit.png)
-Example:
-`zmake test --coverage test-drivers`
-`genhtml -q -o build/zephyr/test-drivers/output/coverage_rpt/ build/zephyr/test-drivers/output/zephyr.info`
+From there, it is exactly the same steps as above to get to the artifacts.