package sys

import "runtime/internal/sys"

package sys contains system- and configuration- and architecture-specific constants used by the runtime.

Index

Constants

const (
	ArchFamily          = WASM
	BigEndian           = false
	DefaultPhysPageSize = 65536
	PCQuantum           = 1
	Int64Align          = 8
	MinFrameSize        = 0
)
const GOARCH = `wasm`
const GOOS = `js`
const Goarch386 = 0
const GoarchAmd64 = 0
const GoarchAmd64p32 = 0
const GoarchArm = 0
const GoarchArm64 = 0
const GoarchArm64be = 0
const GoarchArmbe = 0
const GoarchMips = 0
const GoarchMips64 = 0
const GoarchMips64le = 0
const GoarchMips64p32 = 0
const GoarchMips64p32le = 0
const GoarchMipsle = 0
const GoarchPpc = 0
const GoarchPpc64 = 0
const GoarchPpc64le = 0
const GoarchRiscv = 0
const GoarchRiscv64 = 0
const GoarchS390 = 0
const GoarchS390x = 0
const GoarchSparc = 0
const GoarchSparc64 = 0
const GoarchWasm = 1
const Goexperiment = ``
const GoosAix = 0
const GoosAndroid = 0
const GoosDarwin = 0
const GoosDragonfly = 0
const GoosFreebsd = 0
const GoosHurd = 0
const GoosIllumos = 0
const GoosJs = 1
const GoosLinux = 0
const GoosNacl = 0
const GoosNetbsd = 0
const GoosOpenbsd = 0
const GoosPlan9 = 0
const GoosSolaris = 0
const GoosWindows = 0
const GoosZos = 0
const PtrSize = 4 << (^uintptr(0) >> 63) // unsafe.Sizeof(uintptr(0)) but an ideal const
const RegSize = 4 << (^Uintreg(0) >> 63) // unsafe.Sizeof(uintreg(0)) but an ideal const
const SpAlign = 1*(1-GoarchArm64) + 16*GoarchArm64 // SP alignment: 1 normally, 16 for ARM64
const StackGuardMultiplier = StackGuardMultiplierDefault*(1-GoosAix) + 2*GoosAix

AIX requires a larger stack for syscalls.

const StackGuardMultiplierDefault = 1
const TheVersion = `go1.13.11`

Variables

var DefaultGoroot string // set at link time

Functions

func Bswap32

func Bswap32(x uint32) uint32

Bswap32 returns its input with byte order reversed 0x01020304 -> 0x04030201

func Bswap64

func Bswap64(x uint64) uint64

Bswap64 returns its input with byte order reversed 0x0102030405060708 -> 0x0807060504030201

func Ctz32

func Ctz32(x uint32) int

Ctz32 counts trailing (low-order) zeroes, and if all are zero, then 32.

func Ctz64

func Ctz64(x uint64) int

Ctz64 counts trailing (low-order) zeroes, and if all are zero, then 64.

func Ctz8

func Ctz8(x uint8) int

Ctz8 returns the number of trailing zero bits in x; the result is 8 for x == 0.

Types

type ArchFamilyType

type ArchFamilyType int
const (
	AMD64 ArchFamilyType = iota
	ARM
	ARM64
	I386
	MIPS
	MIPS64
	PPC64
	S390X
	WASM
)

type Uintreg

type Uintreg uint64

Source Files

arch.go arch_wasm.go intrinsics.go stubs.go sys.go zgoarch_wasm.go zgoos_js.go zversion.go

Version
v1.13.11
Published
May 14, 2020
Platform
js/wasm
Last checked
now

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