go/src/runtime/internal/sys/consts.go

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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package sys
import (
"internal/goarch"
"internal/goos"
)
// AIX requires a larger stack for syscalls.
const StackGuardMultiplier = StackGuardMultiplierDefault*(1-goos.GoosAix) + 2*goos.GoosAix
// DefaultPhysPageSize is the default physical page size.
const DefaultPhysPageSize = goarch.DefaultPhysPageSize
// PCQuantum is the minimal unit for a program counter (1 on x86, 4 on most other systems).
// The various PC tables record PC deltas pre-divided by PCQuantum.
const PCQuantum = goarch.PCQuantum
// Int64Align is the required alignment for a 64-bit integer (4 on 32-bit systems, 8 on 64-bit).
const Int64Align = goarch.PtrSize
// MinFrameSize is the size of the system-reserved words at the bottom
// of a frame (just above the architectural stack pointer).
// It is zero on x86 and PtrSize on most non-x86 (LR-based) systems.
// On PowerPC it is larger, to cover three more reserved words:
// the compiler word, the link editor word, and the TOC save word.
const MinFrameSize = goarch.MinFrameSize
// StackAlign is the required alignment of the SP register.
// The stack must be at least word aligned, but some architectures require more.
const StackAlign = goarch.StackAlign
const (
Goarch386 = goarch.Goarch386
GoarchAmd64 = goarch.GoarchAmd64
GoarchAmd64p32 = goarch.GoarchAmd64p32
GoarchArm = goarch.GoarchArm
GoarchArmbe = goarch.GoarchArmbe
GoarchArm64 = goarch.GoarchArm64
GoarchArm64be = goarch.GoarchArm64be
GoarchPpc64 = goarch.GoarchPpc64
GoarchPpc64le = goarch.GoarchPpc64le
GoarchMips = goarch.GoarchMips
GoarchMipsle = goarch.GoarchMipsle
GoarchMips64 = goarch.GoarchMips64
GoarchMips64le = goarch.GoarchMips64le
GoarchMips64p32 = goarch.GoarchMips64p32
GoarchMips64p32le = goarch.GoarchMips64p32le
GoarchPpc = goarch.GoarchPpc
GoarchRiscv = goarch.GoarchRiscv
GoarchRiscv64 = goarch.GoarchRiscv64
GoarchS390 = goarch.GoarchS390
GoarchS390x = goarch.GoarchS390x
GoarchSparc = goarch.GoarchSparc
GoarchSparc64 = goarch.GoarchSparc64
GoarchWasm = goarch.GoarchWasm
)
const (
GoosAix = goos.GoosAix
GoosAndroid = goos.GoosAndroid
GoosDarwin = goos.GoosDarwin
GoosDragonfly = goos.GoosDragonfly
GoosFreebsd = goos.GoosFreebsd
GoosHurd = goos.GoosHurd
GoosIllumos = goos.GoosIllumos
GoosIos = goos.GoosIos
GoosJs = goos.GoosJs
GoosLinux = goos.GoosLinux
GoosNacl = goos.GoosNacl
GoosNetbsd = goos.GoosNetbsd
GoosOpenbsd = goos.GoosOpenbsd
GoosPlan9 = goos.GoosPlan9
GoosSolaris = goos.GoosSolaris
GoosWindows = goos.GoosWindows
GoosZos = goos.GoosZos
)