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// Copyright 2015 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"
// func Syscall(trap int64, a1, a2, a3 int64) (r1, r2, err int64);
TEXT ·Syscall(SB),NOSPLIT,$0-56
BL runtime·entersyscall<ABIInternal>(SB)
MOVD a1+8(FP), R0
MOVD a2+16(FP), R1
MOVD a3+24(FP), R2
MOVD $0, R3
MOVD $0, R4
MOVD $0, R5
MOVD trap+0(FP), R8 // syscall entry
SVC
CMN $4095, R0
BCC ok
MOVD $-1, R4
MOVD R4, r1+32(FP) // r1
MOVD ZR, r2+40(FP) // r2
NEG R0, R0
MOVD R0, err+48(FP) // errno
BL runtime·exitsyscall<ABIInternal>(SB)
RET
ok:
MOVD R0, r1+32(FP) // r1
MOVD R1, r2+40(FP) // r2
MOVD ZR, err+48(FP) // errno
BL runtime·exitsyscall<ABIInternal>(SB)
RET
TEXT ·Syscall6(SB),NOSPLIT,$0-80
BL runtime·entersyscall<ABIInternal>(SB)
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 trap+0(FP), R8 // syscall entry
SVC
CMN $4095, R0
BCC ok
MOVD $-1, R4
MOVD R4, r1+56(FP) // r1
MOVD ZR, r2+64(FP) // r2
NEG R0, R0
MOVD R0, err+72(FP) // errno
BL runtime·exitsyscall<ABIInternal>(SB)
RET
ok:
MOVD R0, r1+56(FP) // r1
MOVD R1, r2+64(FP) // r2
MOVD ZR, err+72(FP) // errno
BL runtime·exitsyscall<ABIInternal>(SB)
RET
// func rawVforkSyscall(trap, a1 uintptr) (r1, err uintptr)
TEXT ·rawVforkSyscall(SB),NOSPLIT,$0-32
MOVD a1+8(FP), R0
MOVD $0, R1
MOVD $0, R2
MOVD $0, R3
MOVD $0, R4
MOVD $0, R5
MOVD trap+0(FP), R8 // syscall entry
SVC
CMN $4095, R0
BCC ok
MOVD $-1, R4
MOVD R4, r1+16(FP) // r1
NEG R0, R0
MOVD R0, err+24(FP) // errno
RET
ok:
MOVD R0, r1+16(FP) // r1
MOVD ZR, err+24(FP) // errno
RET
// func rawSyscallNoError(trap uintptr, a1, a2, a3 uintptr) (r1, r2 uintptr);
TEXT ·rawSyscallNoError(SB),NOSPLIT,$0-48
MOVD a1+8(FP), R0
MOVD a2+16(FP), R1
MOVD a3+24(FP), R2
MOVD $0, R3
MOVD $0, R4
MOVD $0, R5
MOVD trap+0(FP), R8 // syscall entry
SVC
MOVD R0, r1+32(FP)
MOVD R1, r2+40(FP)
RET
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