(0.49.0) Change J9::VMMethodEnv::startPC error return value #20720
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Outdated suggestions cannot be applied.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.
OMR version of startPC expects either a valid start PC or 0 to be returned from J9::VMMethodEnv::startPC since it isn't aware of the J9 specific non-startPC special values that are currently being returned.
This change checks if the J9_STARTPC_NOT_TRANSLATED bit flag is set on the startPC to be returned. This indicates that it isn't a real startPC and will return 0 instead.
Error checking has also been added to addFreeBlock to handle startPC returning 0.
Backport of #20657