1// Copyright 2022 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5#include "go_asm.h"
6#include "go_tls.h"
7#include "funcdata.h"
8#include "textflag.h"
9
10// If !iscgo, this is a no-op.
11//
12// NOTE: mcall() assumes this clobbers only R30 (REGTMP).
13TEXT runtime·save_g(SB),NOSPLIT|NOFRAME,$0-0
14	MOVB	runtime·iscgo(SB), R30
15	BEQ	R30, nocgo
16
17	MOVV	g, runtime·tls_g(SB)
18
19nocgo:
20	RET
21
22TEXT runtime·load_g(SB),NOSPLIT|NOFRAME,$0-0
23	MOVV	runtime·tls_g(SB), g
24	RET
25
26GLOBL runtime·tls_g(SB), TLSBSS, $8
27