type Signal int

const (
	_ Signal = iota
	SIGCHLD
	SIGINT
	SIGKILL
	SIGTRAP
	SIGQUIT
	SIGTERM
)

func (s Signal) Signal() {}

func (s Signal) String() string {
	if 0 <= s && int(s) < len(signals) {
		str := signals[s]
		if str != "" {
			return str
		}
	}
	return "signal " + itoa.Itoa(int(s))
}

var signals = [...]string{}

// File system

//
// https://android.googlesource.com/platform/system/core/+/refs/tags/android-6.0.1_r78/liblog/logd_write.c
type loggerType int32

const (
	unknown loggerType = iota
	legacy
	logd
	// TODO(hakim): logging for emulator?
)

var logger loggerType

func writeErr(b []byte) {
	if len(b) == 0 {
		return
	}

	if logger == unknown {

	// inaccessible   x.foo   !=    foo    cannot refer to unexported field foo
	// missing        x.foo   !=    foO    type X has no field or method foo

	const (
		ok           = iota
		missing      // no object found
		misspelled   // found object with different spelling
		unexported   // found object with name differing only in first letter

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.
	//

		st[c] = s
	}
	return s
}

// A FilterType represents a filter type.
type FilterType int

const (
	FilterSocket        FilterType = iota // for Socket
	FilterConnect                         // for Connect or ConnectEx
	FilterListen                          // for Listen
	FilterAccept                          // for Accept, Accept4 or AcceptEx

	if paramResultInfo.InRegistersUsed()+paramResultInfo.OutRegistersUsed() > 0 {
		reg = &regInfo{}
	}
	return &AuxCall{Fn: fn, abiInfo: paramResultInfo, reg: reg}
}

const (
	auxNone           auxType = iota
	auxBool                   // auxInt is 0/1 for false/true
	auxInt8                   // auxInt is an 8-bit integer
	auxInt16                  // auxInt is a 16-bit integer

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
)

	// However, if there is a constant group with iota, leave it all: later
	// constant declarations in the group may have no value and so cannot stand
	// on their own, and removing any constant from the group could change the
	// values of subsequent ones.
	// See testdata/examples/iota.go for a minimal example.
	var ds []ast.Decl
	for _, d := range depDecls {
		switch d := d.(type) {

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package language

import "errors"

type scriptRegionFlags uint8

const (
	isList = 1 << iota
	scriptInFrom
	regionInFrom
)

func (t *Tag) setUndefinedLang(id Language) {
	if t.LangID == 0 {
		t.LangID = id
	}
}

func (t *Tag) setUndefinedScript(id Script) {
	if t.ScriptID == 0 {

		return

	case *Const:
		check.addDeclDep(obj)
		if !isValid(typ) {
			return
		}
		if obj == universeIota {
			if check.iota == nil {
				check.error(e, InvalidIota, "cannot use iota outside constant declaration")
				return
			}
			x.val = check.iota
		} else {
			x.val = obj.val
		}
		assert(x.val != nil)
		x.mode = constant_

	case *TypeName: