[dev.power64] reflect: add assembly stubs

LGTM=rsc
R=rsc, iant
CC=golang-codereviews
https://golang.org/cl/126090043

src/pkg/reflect/asm_power64x.s

+// Copyright 2012 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.
+
+// +build power64 power64le
+
+#include "../../cmd/ld/textflag.h"
+
+// makeFuncStub is the code half of the function returned by MakeFunc.
+// See the comment on the declaration of makeFuncStub in makefunc.go
+// for more details.
+// No argsize here, gc generates argsize info at call site.
+TEXT ·makeFuncStub(SB),(NOSPLIT|WRAPPER),$16
+	MOVD	R11, 8(R1)
+	MOVD	$argframe+0(FP), R3
+	MOVD	R3, 16(R1)
+	BL	·callReflect(SB)
+	RETURN
+
+// methodValueCall is the code half of the function returned by makeMethodValue.
+// See the comment on the declaration of methodValueCall in makefunc.go
+// for more details.
+// No argsize here, gc generates argsize info at call site.
+TEXT ·methodValueCall(SB),(NOSPLIT|WRAPPER),$16
+	MOVD	R11, 8(R1)
+	MOVD	$argframe+0(FP), R3
+	MOVD	R3, 16(R1)
+	BL	·callMethod(SB)
+	RETURN
+
+// Stubs to give reflect package access to runtime services
+// TODO: should probably be done another way.
+TEXT ·makemap(SB),NOSPLIT,$0-0
+	BR	runtime·reflect_makemap(SB)
+TEXT ·mapaccess(SB),NOSPLIT,$0-0
+	BR	runtime·reflect_mapaccess(SB)
+TEXT ·mapassign(SB),NOSPLIT,$0-0
+	BR	runtime·reflect_mapassign(SB)
+TEXT ·mapdelete(SB),NOSPLIT,$0-0
+	BR	runtime·reflect_mapdelete(SB)
+TEXT ·mapiterinit(SB),NOSPLIT,$0-0
+	BR	runtime·reflect_mapiterinit(SB)
+TEXT ·mapiterkey(SB),NOSPLIT,$0-0
+	BR	runtime·reflect_mapiterkey(SB)
+TEXT ·mapiternext(SB),NOSPLIT,$0-0
+	BR	runtime·reflect_mapiternext(SB)
+TEXT ·maplen(SB),NOSPLIT,$0-0
+	BR	runtime·reflect_maplen(SB)
+TEXT ·ismapkey(SB),NOSPLIT,$0-0
+	BR	runtime·reflect_ismapkey(SB)