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//go:build riscv64 && gc
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
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