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[XRay] Fix enter function tracing for record unwriting

Authored by dberris on Nov 8 2018, 9:04 PM.



Before this change, we could run into a situation where we may try to
undo tail exit records after writing metadata records before a function
enter event. This change rectifies that by resetting the tail exit
counter after writing the metadata records.

Event Timeline

dberris created this revision.Nov 8 2018, 9:04 PM
mboerger accepted this revision.Nov 8 2018, 10:03 PM
This revision is now accepted and ready to land.Nov 8 2018, 10:03 PM
This revision was automatically updated to reflect the committed changes.