1// Copyright 2019 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// +build riscv64,!gccgo
6
7#include "textflag.h"
8
9//
10// System calls for linux/riscv64.
11//
12// Where available, just jump to package syscall's implementation of
13// these functions.
14
15TEXT ·Syscall(SB),NOSPLIT,$0-56
16	JMP	syscall·Syscall(SB)
17
18TEXT ·Syscall6(SB),NOSPLIT,$0-80
19	JMP	syscall·Syscall6(SB)
20
21TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
22	CALL	runtime·entersyscall(SB)
23	MOV	a1+8(FP), A0
24	MOV	a2+16(FP), A1
25	MOV	a3+24(FP), A2
26	MOV	trap+0(FP), A7	// syscall entry
27	ECALL
28	MOV	A0, r1+32(FP)	// r1
29	MOV	A1, r2+40(FP)	// r2
30	CALL	runtime·exitsyscall(SB)
31	RET
32
33TEXT ·RawSyscall(SB),NOSPLIT,$0-56
34	JMP	syscall·RawSyscall(SB)
35
36TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
37	JMP	syscall·RawSyscall6(SB)
38
39TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
40	MOV	a1+8(FP), A0
41	MOV	a2+16(FP), A1
42	MOV	a3+24(FP), A2
43	MOV	trap+0(FP), A7	// syscall entry
44	ECALL
45	MOV	A0, r1+32(FP)
46	MOV	A1, r2+40(FP)
47	RET
48