{"gcWriteBarrier", 1},
	{"duffzero", 1},
	{"duffcopy", 1},

	// assembler backend inserted calls
	{"morestack", 0},        // asm function, ABI0
	{"morestackc", 0},       // asm function, ABI0
	{"morestack_noctxt", 0}, // asm function, ABI0

func morestack()

// morestack_noctxt should be an internal detail,
// but widely used packages access it using linkname.
// Notable members of the hall of shame include:
//   - github.com/cloudwego/frugal
//
// Do not remove or change the type signature.
// See go.dev/issue/67401.
//
//go:linkname morestack_noctxt
func morestack_noctxt()

func rt0_go()

	{"runtime.panicoverflow", 1},
	{"runtime.sigpanic", 1},
	{"runtime.gcWriteBarrier", 1},
	{"runtime.duffzero", 1},
	{"runtime.duffcopy", 1},
	{"runtime.morestack", 0},
	{"runtime.morestackc", 0},
	{"runtime.morestack_noctxt", 0},
	{"type:int8", 0},
	{"type:*int8", 0},
	{"type:uint8", 0},
	{"type:*uint8", 0},
	{"type:int16", 0},
	{"type:*int16", 0},
	{"type:uint16", 0},
	{"type:*uint16", 0},
	{"type:int32", 0},

	p.As = AJAL
	p.To.Type = obj.TYPE_BRANCH
	if c.cursym.CFunc() {
		p.To.Sym = c.ctxt.Lookup("runtime.morestackc")
	} else if !c.cursym.Func().Text.From.Sym.NeedCtxt() {
		p.To.Sym = c.ctxt.Lookup("runtime.morestack_noctxt")
	} else {
		p.To.Sym = c.ctxt.Lookup("runtime.morestack")
	}
	p.Mark |= BRANCH

	p = c.cursym.Func().UnspillRegisterArgs(p, c.newprog)
	p = c.ctxt.EndUnsafePoint(p, c.newprog, -1)

	0x003e 00062 (x.go:5)	ADDQ	$16, SP
	0x0042 00066 (x.go:5)	RET
	0x0043 00067 (x.go:5)	NOP
	0x0043 00067 (x.go:3)	PCDATA	$1, $-1
	0x0043 00067 (x.go:3)	PCDATA	$0, $-1
	0x0043 00067 (x.go:3)	CALL	runtime.morestack_noctxt(SB)
	0x0048 00072 (x.go:3)	JMP	0
...
</pre>

<p>
The <code>FUNCDATA</code> and <code>PCDATA</code> directives contain information
for use by the garbage collector; they are introduced by the compiler.
</p>

	call.To.Type = obj.TYPE_BRANCH
	morestack := "runtime.morestack"
	switch {
	case c.cursym.CFunc():
		morestack = "runtime.morestackc"
	case !c.cursym.Func().Text.From.Sym.NeedCtxt():
		morestack = "runtime.morestack_noctxt"
	}
	call.To.Sym = c.ctxt.Lookup(morestack)

	pcdata = c.ctxt.EndUnsafePoint(call, c.newprog, -1)

	// B start
	b := obj.Appendp(pcdata, c.newprog)
	b.As = obj.AJMP
	b.To.Type = obj.TYPE_BRANCH

	// uses the gojs module understands the internal Go WASM ABI directly.
	GojsModule = "gojs"
)

func instinit(ctxt *obj.Link) {
	morestack = ctxt.Lookup("runtime.morestack")
	morestackNoCtxt = ctxt.Lookup("runtime.morestack_noctxt")
	sigpanic = ctxt.LookupABI("runtime.sigpanic", obj.ABIInternal)
}

func preprocess(ctxt *obj.Link, s *obj.LSym, newprog obj.ProgAlloc) {

	p.As = ABL
	p.To.Type = obj.TYPE_BRANCH
	if c.cursym.CFunc() {
		p.To.Sym = c.ctxt.Lookup("runtime.morestackc")
	} else if !c.cursym.Func().Text.From.Sym.NeedCtxt() {
		p.To.Sym = c.ctxt.Lookup("runtime.morestack_noctxt")
	} else {
		p.To.Sym = c.ctxt.Lookup("runtime.morestack")
	}

	p = c.ctxt.EndUnsafePoint(p, c.newprog, -1)

	// BR	pCheck
	p = obj.Appendp(p, c.newprog)

	p.As = ABR

	SUB	$8, X2
	CALL	runtime·newstack(SB)

	// Not reached, but make sure the return PC from the call to newstack
	// is still in this function, and not the beginning of the next.
	UNDEF

// func morestack_noctxt()
TEXT runtime·morestack_noctxt(SB),NOSPLIT|NOFRAME,$0-0
	// Force SPWRITE. This function doesn't actually write SP,
	// but it is called with a special calling convention where

	call.To.Type = obj.TYPE_BRANCH
	morestack := "runtime.morestack"
	switch {
	case c.cursym.CFunc():
		morestack = "runtime.morestackc"
	case !c.cursym.Func().Text.From.Sym.NeedCtxt():
		morestack = "runtime.morestack_noctxt"
	}
	call.To.Sym = c.ctxt.Lookup(morestack)

	// The instructions which unspill regs should be preemptible.
	pcdata = c.ctxt.EndUnsafePoint(call, c.newprog, -1)