ostest: Enabled KASAN, UBSAN & assertions.

[fjpanag]

Summary

Enables KASAN, UBSAN and assertions in ostest, in the hope that more errors could be found faster and easier.

Impact

Better testing.

Testing

I run ostest in sim with this exact configuration.
The test passes without issues.

[davids5]

@fjpanag CI Error is
clang: error: unsupported option '-fsanitize=kernel-address' for target 'x86_64-apple-darwin21.6.0'

[fjpanag]

@fjpanag CI Error is clang: error: unsupported option '-fsanitize=kernel-address' for target 'x86_64-apple-darwin21.6.0'

I saw that, but I am not sure what is the best way to handle this.

Typically, Kconfig should handle it. Have the option depend on its prerequisites. But Kconfig does not know the compiler used.

It can be fixed in the Makefiles. However, the users will have the option enabled, but it won't work! It will very confusing.

Or maybe, the check could be disabled directly in CI for this specific build? Maybe with a kconfig-tweak before this build command?

[fjpanag]

I ended up disabling the ostest build in macOS...

I think that the CI failure is unrelated?