// only in a very limited callee of reflectcall, the stackArgs are copied, and
// regArgs is only used in the reflectcall frame.
//
//go:noescape
func reflectcall(stackArgsType *_type, fn, stackArgs unsafe.Pointer, stackArgsSize, stackRetOffset, frameSize uint32, regArgs *abi.RegArgs)

// procyield should be an internal detail,
// but widely used packages access it using linkname.

}

// A component is an assembly-addressable component of a composite type,
// or a composite type itself.
type component struct {
	size   int
	offset int
	kind   asmKind
	typ    string
	suffix string // Such as _base for string base, _0_lo for lo half of first element of [1]uint64 on 32 bit machine.
	outer  string // The suffix for immediately containing composite type.
}

echo ')'

# Run C program to print error and syscall strings.
(
	echo -E "
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <ctype.h>
#include <string.h>
#include <signal.h>

#define nelem(x) (sizeof(x)/sizeof((x)[0]))

enum { A = 'A', Z = 'Z', a = 'a', z = 'z' }; // avoid need for single quotes below

struct tuple {
	int num;

type note struct {
	// Futex-based impl treats it as uint32 key,
	// while sema-based impl as M* waitm.
	// Used to be a union, but unions break precise GC.
	key uintptr
}

type funcval struct {
	fn uintptr
	// variable-size, fn-specific data here
}

type iface struct {
	tab  *itab
	data unsafe.Pointer
}

type eface struct {
	_type *_type

	// Make it SPWRITE to stop unwinding. (See issue 54332)
	MOVV    R3, R3

	MOVV	R0, REGCTXT
	JMP	runtime·morestack(SB)

// reflectcall: call a function with the given argument list
// func call(stackArgsType *_type, f *FuncVal, stackArgs *byte, stackArgsSize, stackRetOffset, frameSize uint32, regArgs *abi.RegArgs).
// we don't have variable-sized frames, so we use a small number

	// Make it SPWRITE to stop unwinding. (See issue 54332)
	MOVW	R29, R29

	MOVW	R0, REGCTXT
	JMP	runtime·morestack(SB)

// reflectcall: call a function with the given argument list
// func call(stackArgsType *_type, f *FuncVal, stackArgs *byte, stackArgsSize, stackRetOffset, frameSize uint32, regArgs *abi.RegArgs).
// we don't have variable-sized frames, so we use a small number

	return f
}

// A TypeInfo contains information for a symbol
// that contains a runtime._type.
type TypeInfo struct {
	Type interface{} // a *cmd/compile/internal/types.Type
}

func (s *LSym) NewTypeInfo() *TypeInfo {
	if s.Extra != nil {
		panic(fmt.Sprintf("invalid use of LSym - NewTypeInfo with Extra of type %T", *s.Extra))
	}
	t := new(TypeInfo)
	s.Extra = new(interface{})
	*s.Extra = t
	return t

	defer func() {
		text := "panic while printing panic value"
		switch r := recover().(type) {
		case nil:
			// nothing to do
		case string:
			throw(text + ": " + r)
		default:
			throw(text + ": type " + toRType(efaceOf(&r)._type).string())
		}
	}()
	for p != nil {
		switch v := p.arg.(type) {
		case error:
			p.arg = v.Error()
		case stringer:
			p.arg = v.String()
		}

const UserArenaChunkBytes = userArenaChunkBytes

type UserArena struct {
	arena *userArena
}

func NewUserArena() *UserArena {
	return &UserArena{newUserArena()}
}

func (a *UserArena) New(out *any) {
	i := efaceOf(out)
	typ := i._type
	if typ.Kind_&abi.KindMask != abi.Pointer {
		panic("new result of non-ptr type")
	}
	typ = (*ptrtype)(unsafe.Pointer(typ)).Elem

	// priority and causing a slowdown in execution time

	OR	R0, R1
	MOVD	R0, R11
	BR	runtime·morestack(SB)

// reflectcall: call a function with the given argument list
// func call(stackArgsType *_type, f *FuncVal, stackArgs *byte, stackArgsSize, stackRetOffset, frameSize uint32, regArgs *abi.RegArgs).
// we don't have variable-sized frames, so we use a small number