// lostProfileEvent is the function to which lost profiling // events are attributed. // (The name shows up in the pprof graphs.) func lostProfileEvent() { … } type profileBuilder … type memMap … type symbolizeFlag … const lookupTried … const lookupFailed … const tagProfile_SampleType … const tagProfile_Sample … const tagProfile_Mapping … const tagProfile_Location … const tagProfile_Function … const tagProfile_StringTable … const tagProfile_DropFrames … const tagProfile_KeepFrames … const tagProfile_TimeNanos … const tagProfile_DurationNanos … const tagProfile_PeriodType … const tagProfile_Period … const tagProfile_Comment … const tagProfile_DefaultSampleType … const tagValueType_Type … const tagValueType_Unit … const tagSample_Location … const tagSample_Value … const tagSample_Label … const tagLabel_Key … const tagLabel_Str … const tagLabel_Num … const tagMapping_ID … const tagMapping_Start … const tagMapping_Limit … const tagMapping_Offset … const tagMapping_Filename … const tagMapping_BuildID … const tagMapping_HasFunctions … const tagMapping_HasFilenames … const tagMapping_HasLineNumbers … const tagMapping_HasInlineFrames … const tagLocation_ID … const tagLocation_MappingID … const tagLocation_Address … const tagLocation_Line … const tagLine_FunctionID … const tagLine_Line … const tagFunction_ID … const tagFunction_Name … const tagFunction_SystemName … const tagFunction_Filename … const tagFunction_StartLine … // stringIndex adds s to the string table if not already present // and returns the index of s in the string table. func (b *profileBuilder) stringIndex(s string) int64 { … } func (b *profileBuilder) flush() { … } // pbValueType encodes a ValueType message to b.pb. func (b *profileBuilder) pbValueType(tag int, typ, unit string) { … } // pbSample encodes a Sample message to b.pb. func (b *profileBuilder) pbSample(values []int64, locs []uint64, labels func()) { … } // pbLabel encodes a Label message to b.pb. func (b *profileBuilder) pbLabel(tag int, key, str string, num int64) { … } // pbLine encodes a Line message to b.pb. func (b *profileBuilder) pbLine(tag int, funcID uint64, line int64) { … } // pbMapping encodes a Mapping message to b.pb. func (b *profileBuilder) pbMapping(tag int, id, base, limit, offset uint64, file, buildID string, hasFuncs bool) { … } func allFrames(addr uintptr) ([]runtime.Frame, symbolizeFlag) { … } type locInfo … // newProfileBuilder returns a new profileBuilder. // CPU profiling data obtained from the runtime can be added // by calling b.addCPUData, and then the eventual profile // can be obtained by calling b.finish. func newProfileBuilder(w io.Writer) *profileBuilder { … } // addCPUData adds the CPU profiling data to the profile. // // The data must be a whole number of records, as delivered by the runtime. // len(tags) must be equal to the number of records in data. func (b *profileBuilder) addCPUData(data []uint64, tags []unsafe.Pointer) error { … } // build completes and returns the constructed profile. func (b *profileBuilder) build() { … } // appendLocsForStack appends the location IDs for the given stack trace to the given // location ID slice, locs. The addresses in the stack are return PCs or 1 + the PC of // an inline marker as the runtime traceback function returns. // // It may return an empty slice even if locs is non-empty, for example if locs consists // solely of runtime.goexit. We still count these empty stacks in profiles in order to // get the right cumulative sample count. // // It may emit to b.pb, so there must be no message encoding in progress. func (b *profileBuilder) appendLocsForStack(locs []uint64, stk []uintptr) (newLocs []uint64) { … } type pcDeck … func (d *pcDeck) reset() { … } // tryAdd tries to add the pc and Frames expanded from it (most likely one, // since the stack trace is already fully expanded) and the symbolizeResult // to the deck. If it fails the caller needs to flush the deck and retry. func (d *pcDeck) tryAdd(pc uintptr, frames []runtime.Frame, symbolizeResult symbolizeFlag) (success bool) { … } // emitLocation emits the new location and function information recorded in the deck // and returns the location ID encoded in the profile protobuf. // It emits to b.pb, so there must be no message encoding in progress. // It resets the deck. func (b *profileBuilder) emitLocation() uint64 { … } var space … var newline … func parseProcSelfMaps(data []byte, addMapping func(lo, hi, offset uint64, file, buildID string)) { … } func (b *profileBuilder) addMapping(lo, hi, offset uint64, file, buildID string) { … } func (b *profileBuilder) addMappingEntry(lo, hi, offset uint64, file, buildID string, fake bool) { … }
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