// GoState represents the state of a goroutine.
//
// New GoStates may be added in the future. Users of this type must be robust
// to that possibility.
type GoState uint8

const (
	GoUndetermined GoState = iota // No information is known about the goroutine.
	GoNotExist                    // Goroutine does not exist.
	GoRunnable                    // Goroutine is runnable but not running.

type SymKind uint8

// Defined SymKind values.
//
// TODO(rsc): Give idiomatic Go names.
//
//go:generate stringer -type=SymKind
const (
	Sxxx SymKind = iota
	STEXT
	SELFRXSECT
	SMACHOPLT

	// Read-only sections.
	STYPE
	SSTRING
	SGOSTRING
	SGOFUNC
	SGCBITS
	SRODATA
	SFUNCTAB

	SELFROSECT

	// Read-only sections with relocations.
	//

package trace

// Frame is a frame in stack traces.
type Frame struct {
	PC   uint64
	Fn   string
	File string
	Line int
}

const (
	// Special P identifiers:
	FakeP    = 1000000 + iota
	TimerP   // depicts timer unblocks
	NetpollP // depicts network unblocks
	SyscallP // depicts returns from syscalls
	GCP      // depicts GC state
	ProfileP // depicts recording of CPU profile samples
)

// in addition to satisfying the partial order in lockPartialOrder.
// A few ranks allow self-cycles, which are specified in lockPartialOrder.
const (
	lockRankUnknown lockRank = iota

`)
	for _, rank := range topo {
		if isPseudo(rank) {
			fmt.Fprintf(w, "\t// %s\n", rank)
		} else {
			fmt.Fprintf(w, "\t%s\n", cname(rank))
		}
	}
	fmt.Fprintf(w, `)

// Runtime -> tracer API for memory events.

package runtime

import (
	"internal/abi"
	"runtime/internal/sys"
)

// Batch type values for the alloc/free experiment.
const (
	traceAllocFreeTypesBatch = iota // Contains types. [{id, address, size, ptrspan, name length, name string} ...]
	traceAllocFreeInfoBatch         // Contains info for interpreting events. [min heap addr, page size, min heap align, min stack align]
)

	HardwareAddr HardwareAddr // IEEE MAC-48, EUI-48 and EUI-64 form
	Flags        Flags        // e.g., FlagUp, FlagLoopback, FlagMulticast
}

type Flags uint

const (
	FlagUp           Flags = 1 << iota // interface is administratively up
	FlagBroadcast                      // interface supports broadcast access capability
	FlagLoopback                       // interface is a loopback interface

package sha3

// spongeDirection indicates the direction bytes are flowing through the sponge.
type spongeDirection int

const (
	// spongeAbsorbing indicates that the sponge is absorbing input.
	spongeAbsorbing spongeDirection = iota
	// spongeSqueezing indicates that the sponge is being squeezed.
	spongeSqueezing
)

const (
	// maxRate is the maximum size of the internal buffer. SHAKE-256
	// currently needs the largest buffer.
	maxRate = 168

package os

import (
	"internal/bytealg"
	"internal/filepathlite"
	"io"
	"io/fs"
	"slices"
)

type readdirMode int

const (
	readdirName readdirMode = iota
	readdirDirEntry
	readdirFileInfo
)

// Readdir reads the contents of the directory associated with file and
// returns a slice of up to n [FileInfo] values, as would be returned

//     are suffixes reserved for scheduling resources.
//
// NOTE: If you add an event type, make sure you also update all
// tables in this file!
type traceEv uint8

const (
	traceEvNone traceEv = iota // unused

	// Structural events.
	traceEvEventBatch // start of per-M batch of events [generation, M ID, timestamp, batch length]
	traceEvStacks     // start of a section of the stack table [...traceEvStack]

	ip := ParseIP(addr)
	if ip == nil {
		return "", &DNSError{Err: "unrecognized address", Name: addr}
	}
	if ip.To4() != nil {
		return itoa.Uitoa(uint(ip[15])) + "." + itoa.Uitoa(uint(ip[14])) + "." + itoa.Uitoa(uint(ip[13])) + "." + itoa.Uitoa(uint(ip[12])) + ".in-addr.arpa.", nil
	}
	// Must be IPv6
	buf := make([]byte, 0, len(ip)*4+len("ip6.arpa."))
	// Add it, in reverse, to the buffer