Make checkptr allocation-straddling crashes trigger reliably on test data #32
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
This PR adds some code to test data specimen construction to ensure that test data is always at the end of a heap allocation. This ensures that if we read past the end of the allocation without using a blessed
//go:nocheckptrfunction, we see a crash. Seeinternal/testdata.go:snapBytesfor more information on how this is implemented.