rtcov

Documentation

Index

• type CovCounterBlob
• type CovMetaBlob

Types

type CovCounterBlob

type CovCounterBlob struct {
	Counters *uint32
	Len      uint64
}

CovCounterBlob is a container for encapsulating a counter section (BSS variable) for an instrumented Go module. Here "counters" points to the counter payload and "len" is the number of uint32 entries in the section.

type CovMetaBlob

type CovMetaBlob struct {
	P                  *byte
	Len                uint32
	Hash               [16]byte
	PkgPath            string
	PkgID              int
	CounterMode        uint8 // coverage.CounterMode
	CounterGranularity uint8 // coverage.CounterGranularity
}

CovMetaBlob is a container for holding the meta-data symbol (an RODATA variable) for an instrumented Go package. Here "p" points to the symbol itself, "len" is the length of the sym in bytes, and "hash" is an md5sum for the sym computed by the compiler. When the init function for a coverage-instrumented package executes, it will make a call into the runtime which will create a covMetaBlob object for the package and chain it onto a global list.