// Copyright 2018 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 runtime

import "unsafe"

// Called from compiled code; declared for vet; do NOT call from Go.
func gcWriteBarrierCX()
func gcWriteBarrierDX()
func gcWriteBarrierBX()
func gcWriteBarrierBP()
func gcWriteBarrierSI()
func gcWriteBarrierR8()
func gcWriteBarrierR9()

// stackcheck checks that SP is in range [g->stack.lo, g->stack.hi).
func stackcheck()

// Called from assembly only; declared for go vet.
func settls() // argument in DI

// Retpolines, used by -spectre=ret flag in cmd/asm, cmd/compile.
func retpolineAX()
func retpolineCX()
func retpolineDX()
func retpolineBX()
func retpolineBP()
func retpolineSI()
func retpolineDI()
func retpolineR8()
func retpolineR9()
func retpolineR10()
func retpolineR11()
func retpolineR12()
func retpolineR13()
func retpolineR14()
func retpolineR15()

//go:noescape
func asmcgocall_no_g(fn, arg unsafe.Pointer)

//go:systemstack
func asmcgocall_landingpad()

// Used by reflectcall and the reflect package.
//
// Spills/loads arguments in registers to/from an internal/abi.RegArgs
// respectively. Does not follow the Go ABI.
func spillArgs()
func unspillArgs()

// getfp returns the frame pointer register of its caller or 0 if not implemented.
// TODO: Make this a compiler intrinsic
func getfp() uintptr