tagLocation_ID        = 1 // uint64
	tagLocation_MappingID = 2 // uint64
	tagLocation_Address   = 3 // uint64
	tagLocation_Line      = 4 // repeated Line

	// message Line
	tagLine_FunctionID = 1 // uint64
	tagLine_Line       = 2 // int64

	// message Function
	tagFunction_ID         = 1 // uint64
	tagFunction_Name       = 2 // int64 (string table index)
	tagFunction_SystemName = 3 // int64 (string table index)

	GCAssistTime    int64 // GC assists
	GCDedicatedTime int64 // GC dedicated mark workers + pauses
	GCIdleTime      int64 // GC idle mark workers
	GCPauseTime     int64 // GC pauses (all GOMAXPROCS, even if just 1 is running)
	GCTotalTime     int64

	ScavengeAssistTime int64 // background scavenger
	ScavengeBgTime     int64 // scavenge assists
	ScavengeTotalTime  int64

		pos++
	}
	return uint64(b[0]) | uint64(b[1])<<8 |
		uint64(b[2])<<16 | uint64(b[3])<<24 |
		uint64(b[4])<<32 | uint64(b[5])<<40 |
		uint64(b[6])<<48 | uint64(b[7])<<56
}

func (r *debugLogReader) peek() (tick uint64) {
	// Consume any sync records.
	size := uint64(0)
	for size == 0 {
		if r.begin+debugLogHeaderSize > r.end {
			return ^uint64(0)
		}

	strX int64
	numX int64 // Integer value for this label
}

// Mapping corresponds to Profile.Mapping
type Mapping struct {
	ID              uint64
	Start           uint64
	Limit           uint64
	Offset          uint64
	File            string
	BuildID         string
	HasFunctions    bool
	HasFilenames    bool
	HasLineNumbers  bool
	HasInlineFrames bool

	fileX    int64
	buildIDX int64
}

	return Xadd(&u.value, delta)
}

// Uint64 is an atomically accessed uint64 value.
//
// 8-byte aligned on all platforms, unlike a regular uint64.
//
// A Uint64 must not be copied.
type Uint64 struct {
	noCopy noCopy
	_      align64
	value  uint64
}

// Load accesses and returns the value atomically.
//
//go:nosplit
func (u *Uint64) Load() uint64 {
	return Load64(&u.value)
}

	func(b *buffer, m message) error { return decodeUint64(b, &m.(*Mapping).Start) },         // optional uint64 memory_offset = 2
	func(b *buffer, m message) error { return decodeUint64(b, &m.(*Mapping).Limit) },         // optional uint64 memory_limit = 3
	func(b *buffer, m message) error { return decodeUint64(b, &m.(*Mapping).Offset) },        // optional uint64 file_offset = 4

	return limiterEventStamp(uint64(typ)<<(64-limiterEventBits) | (uint64(now) &^ limiterEventTypeMask))
}

// duration computes the difference between now and the start time stored in the stamp.
//
// Returns 0 if the difference is negative, which may happen if now is stale or if the
// before and after timestamps cross a 2^(64-limiterEventBits) boundary.
func (s limiterEventStamp) duration(now int64) int64 {

		}
		if int64(s.FileSize) < 0 {
			return nil, &FormatError{shoff + int64(off), "invalid section size", int64(s.FileSize)}
		}
		s.sr = io.NewSectionReader(r, int64(s.Offset), int64(s.FileSize))

		if s.Flags&SHF_COMPRESSED == 0 {
			s.ReaderAt = s.sr
			s.Size = s.FileSize
		} else {
			// Read the compression header.
			switch f.Class {
			case ELFCLASS32:

			out.Write64(uint64(elf.R_390_TLS_LE64) | uint64(elfsym)<<32)
		}
	case objabi.R_TLS_IE:
		switch siz {
		default:
			return false
		case 4:
			out.Write64(uint64(elf.R_390_TLS_IEENT) | uint64(elfsym)<<32)
		}
	case objabi.R_ADDR, objabi.R_DWARFSECREF:
		switch siz {
		default:
			return false
		case 4:
			out.Write64(uint64(elf.R_390_32) | uint64(elfsym)<<32)
		case 8:

func abigen_sync_atomic_SwapInt64(addr *int64, new int64) (old int64)

//go:linkname abigen_sync_atomic_SwapUint32 sync/atomic.SwapUint32
func abigen_sync_atomic_SwapUint32(addr *uint32, new uint32) (old uint32)

//go:linkname abigen_sync_atomic_SwapUint64 sync/atomic.SwapUint64
func abigen_sync_atomic_SwapUint64(addr *uint64, new uint64) (old uint64)

//go:linkname abigen_sync_atomic_AddInt32 sync/atomic.AddInt32