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// Copyright 2019 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.
#include "textflag.h"
//
// System call support for ARM64, FreeBSD
//
#define SYS_syscall 0
// func Syscall(trap uintptr, a1, a2, a3 uintptr) (r1, r2, err uintptr)
TEXT ·Syscall(SB),NOSPLIT,$0-56
BL runtime·entersyscall<ABIInternal>(SB)
MOVD trap+0(FP), R8 // syscall entry
MOVD a1+8(FP), R0
MOVD a2+16(FP), R1
MOVD a3+24(FP), R2
SVC $SYS_syscall
BCC ok
MOVD $-1, R1
MOVD R1, r1+32(FP)
MOVD ZR, r2+40(FP)
MOVD R0, err+48(FP)
BL runtime·exitsyscall<ABIInternal>(SB)
RET
ok:
MOVD R0, r1+32(FP)
MOVD R1, r2+40(FP)
MOVD ZR, err+48(FP)
BL runtime·exitsyscall<ABIInternal>(SB)
RET
// func RawSyscall(trap uintptr, a1, a2, a3 uintptr) (r1, r2, err uintptr)
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
MOVD trap+0(FP), R8 // syscall entry
MOVD a1+8(FP), R0
MOVD a2+16(FP), R1
MOVD a3+24(FP), R2
SVC $SYS_syscall
BCC ok
MOVD $-1, R1
MOVD R1, r1+32(FP)
MOVD ZR, r2+40(FP)
MOVD R0, err+48(FP)
RET
ok:
MOVD R0, r1+32(FP)
MOVD R1, r2+40(FP)
MOVD ZR, err+48(FP)
RET
// func Syscall6(trap uintptr, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr)
TEXT ·Syscall6(SB),NOSPLIT,$0-80
BL runtime·entersyscall<ABIInternal>(SB)
MOVD trap+0(FP), R8 // syscall entry
MOVD a1+8(FP), R0
MOVD a2+16(FP), R1
MOVD a3+24(FP), R2
MOVD a4+32(FP), R3
MOVD a5+40(FP), R4
MOVD a6+48(FP), R5
SVC $SYS_syscall
BCC ok
MOVD $-1, R1
MOVD R1, r1+56(FP)
MOVD ZR, r2+64(FP)
MOVD R0, err+72(FP)
BL runtime·exitsyscall<ABIInternal>(SB)
RET
ok:
MOVD R0, r1+56(FP)
MOVD R1, r2+64(FP)
MOVD ZR, err+72(FP)
BL runtime·exitsyscall<ABIInternal>(SB)
RET
// func RawSyscall6(trap uintptr, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
MOVD trap+0(FP), R8 // syscall entry
MOVD a1+8(FP), R0
MOVD a2+16(FP), R1
MOVD a3+24(FP), R2
MOVD a4+32(FP), R3
MOVD a5+40(FP), R4
MOVD a6+48(FP), R5
SVC $SYS_syscall
BCC ok
MOVD $-1, R1
MOVD R1, r1+56(FP)
MOVD ZR, r2+64(FP)
MOVD R0, err+72(FP)
RET
ok:
MOVD R0, r1+56(FP)
MOVD R1, r2+64(FP)
MOVD ZR, err+72(FP)
RET
// Actually Syscall7
// func Syscall9(num uintptr, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2, err uintptr)
TEXT ·Syscall9(SB),NOSPLIT,$0-104
BL runtime·entersyscall<ABIInternal>(SB)
MOVD num+0(FP), R8 // syscall entry
MOVD a1+8(FP), R0
MOVD a2+16(FP), R1
MOVD a3+24(FP), R2
MOVD a4+32(FP), R3
MOVD a5+40(FP), R4
MOVD a6+48(FP), R5
MOVD a7+56(FP), R6
// MOVD a8+64(FP), R7
// MOVD a9+72(FP), R8
SVC $SYS_syscall
BCC ok
MOVD $-1, R1
MOVD R1, r1+80(FP)
MOVD ZR, r2+88(FP)
MOVD R0, err+96(FP)
BL runtime·exitsyscall<ABIInternal>(SB)
RET
ok:
MOVD R0, r1+80(FP)
MOVD R1, r2+88(FP)
MOVD ZR, err+96(FP)
BL runtime·exitsyscall<ABIInternal>(SB)
RET
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