Since we're not winning anything by changing the result between
processors on the main process, reduce is noop there and result is
immutable.
Bug: v8:6917
Change-Id: Ieb282e7abd4ab31162aee6b52493a6e1b6a25109
Cq-Include-Trybots: luci.v8.try:v8_linux64_fyi_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/878239
Commit-Queue: Michał Majewski <majeski@google.com>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50784}
This adds sanitizer-coverage compilation, test-runner
features and post processing.
Sanitizer coverage is expected to be used together with
asan.
During test runner execution, the produced sancov files
are disambiguated and match the pattern:
<executable name>.test.<test id>.sancov.
Two additional scripts are added for merging raw sancov
files and for generating json data containing all
instrumented lines + all covered lines from merged sancov
files. Both scripts use multiprocessing for speed.
The json data will later be uploaded to google storage
for further use, e.g. to show coverage data in rietveld.
Sancov documentation:
http://clang.llvm.org/docs/SanitizerCoverage.html
BUG=chromium:568949
LOG=n
NOTRY=true
TEST=python -m unittest sancov_formatter_test
TEST=python -m unittest sancov_merger_test
Review URL: https://codereview.chromium.org/1737263003
Cr-Commit-Position: refs/heads/master@{#34578}
