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5f8ca72cd6
Follow the implementation in package syscall, see CL 204659. Change-Id: Ib97f86958cbdb0135b7980faf23729543c68d42a Reviewed-on: https://go-review.googlesource.com/c/sys/+/213397 Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Joel Sing <joel@sing.id.au>
48 lines
1.0 KiB
ArmAsm
48 lines
1.0 KiB
ArmAsm
// Copyright 2019 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build riscv64,!gccgo
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#include "textflag.h"
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//
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// System calls for linux/riscv64.
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//
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// Where available, just jump to package syscall's implementation of
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// these functions.
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TEXT ·Syscall(SB),NOSPLIT,$0-56
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JMP syscall·Syscall(SB)
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TEXT ·Syscall6(SB),NOSPLIT,$0-80
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JMP syscall·Syscall6(SB)
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TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
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CALL runtime·entersyscall(SB)
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MOV a1+8(FP), A0
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MOV a2+16(FP), A1
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MOV a3+24(FP), A2
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MOV trap+0(FP), A7 // syscall entry
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ECALL
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MOV A0, r1+32(FP) // r1
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MOV A1, r2+40(FP) // r2
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CALL runtime·exitsyscall(SB)
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RET
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TEXT ·RawSyscall(SB),NOSPLIT,$0-56
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JMP syscall·RawSyscall(SB)
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TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
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JMP syscall·RawSyscall6(SB)
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TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
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MOV a1+8(FP), A0
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MOV a2+16(FP), A1
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MOV a3+24(FP), A2
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MOV trap+0(FP), A7 // syscall entry
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ECALL
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MOV A0, r1+32(FP)
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MOV A1, r2+40(FP)
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RET
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