Suppress leaks from inside dlopen

[szkarpinski]

Category:

Bug fix (non-breaking change which fixes an issue)

Description:

We dlopen things but not dlclose them, so some internal dlopen structures get leaked. This was suppressed in #4521, but some of the functions listed there got inlined, resulting in new false positives.

In this PR I add dlopen to the suppressions list to avoid further false-positives

Additional information:

Affected modules and functionalities:

Sanitizer CI runs

Key points relevant for the review:

Maybe suppressing dlopen is too wide?

Tests:

• Existing tests apply
• New tests added
  • Python tests
  • GTests
  • Benchmark
  • Other
• N/A

Checklist

Documentation

• Existing documentation applies
• Documentation updated
  • Docstring
  • Doxygen
  • RST
  • Jupyter
  • Other
• N/A

DALI team only

Requirements

• Implements new requirements
• Affects existing requirements
• N/A

REQ IDs: N/A

JIRA TASK: N/A

[szkarpinski]

@mzient pointed out that dlopen calls globals constructors, so if there's any leak in there it'll get suppressed. So I guess suppressing dlopen was a bad idea.

[szkarpinski]

@awolant @banasraf I changed (62256ef) the suppressions to be more precise, dlopen was too broad and might suppress true leaks. I'll run sanitizer build in a moment to see if this still helps.

[dali-automaton]

CI MESSAGE: [11568412]: BUILD STARTED

[dali-automaton]

CI MESSAGE: [11573073]: BUILD STARTED

[dali-automaton]

CI MESSAGE: [11573073]: BUILD FAILED

[dali-automaton]

CI MESSAGE: [11603250]: BUILD STARTED

[dali-automaton]

CI MESSAGE: [11603250]: BUILD FAILED

[dali-automaton]

CI MESSAGE: [12053951]: BUILD STARTED

[dali-automaton]

CI MESSAGE: [12053951]: BUILD FAILED

[dali-automaton]

CI MESSAGE: [12053951]: BUILD PASSED

[szkarpinski]

After a long rollercoaster of trying different ways to suppress things I came back to the original solution of just suppressing dlopen itself and the CI is finally passing 🎉 . @JanuszL @awolant is this OK?

[JanuszL]

I think we can proceed that way.