pkg/coverage: adopt new coverage interface for kcov #12258
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This change updates the kcov implementation to use the new Go coverage interface provided by the `internal/coverage` package. The previous implementation relied on `coverdata.Blocks`, which is part of the older coverage tooling. The new implementation uses `runtime/coverage.WriteCounters` to get the raw coverage data and then decodes it using `decodecounter.NewDecoder`. This approach is aligned with the modern Go coverage infrastructure. This change requires a patched Go compiler that allows importing internal packages. This is a temporary measure until the golang team provides a public API. More details can be found here: golang/go#51430 PiperOrigin-RevId: 828145693
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pkg/coverage: adopt new coverage interface for kcov
This change updates the kcov implementation to use the new Go coverage
interface provided by the
internal/coveragepackage. The previousimplementation relied on
coverdata.Blocks, which is part of the oldercoverage tooling.
The new implementation uses
runtime/coverage.WriteCountersto get the rawcoverage data and then decodes it using
decodecounter.NewDecoder. Thisapproach is aligned with the modern Go coverage infrastructure.
This change requires a patched Go compiler that allows importing internal
packages. This is a temporary measure until the golang team provides a public
API.
More details can be found here: golang/go#51430