Make bazel_cc_code_coverage_test more robust against GCC version differences (#16254)

* -fprofile-dir shouldn't be used because on the g++ command line because it
has different behaviour with different versions (w.r.t. where the output
gcda file ends up).
* The gcda and gcno files may end up in the same directory as the object file
or in the current working directory.
* The output of the gcov call in collect_cc_coverage may be
"*.gcda.gcov.json.gz" or "*.gcov.json.gz" (as well as the original text file
for much older GCC versions).

Also re-enable the test for Ubuntu 20.04 pre and postsubmits.

Fixes #16229

Closes #16235.

PiperOrigin-RevId: 473218955
Change-Id: I1f4887f251da8f56f8ea525c1a1410e6257bf31b

Co-authored-by: Charles Mita <cmita@google.com>
1 file changed
tree: 8c6da05f0e81e96c1ef31512daa0e2e4b9ddb70f
  1. .bazelci/
  2. examples/
  3. scripts/
  4. site/
  5. src/
  6. third_party/
  7. tools/
  8. .bazelrc
  9. .gitattributes
  10. .gitignore
  11. AUTHORS
  12. BUILD
  13. CHANGELOG.md
  14. CODE_OF_CONDUCT.md
  15. CODEBASE.md
  16. CODEOWNERS
  17. combine_distfiles.py
  18. combine_distfiles_to_tar.sh
  19. compile.sh
  20. CONTRIBUTING.md
  21. CONTRIBUTORS
  22. distdir.bzl
  23. distdir_deps.bzl
  24. ISSUE_TEMPLATE.md
  25. LICENSE
  26. README.md
  27. SECURITY.md
  28. WORKSPACE
  29. WORKSPACE.bzlmod
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