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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(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(SB)
| RET
| ok:
| MOVD R0, r1+32(FP) // r1
| MOVD R1, r2+40(FP) // r2
| MOVD ZR, err+48(FP) // errno
| BL runtime·exitsyscall(SB)
| RET
|
| TEXT ·Syscall6(SB),NOSPLIT,$0-80
| BL runtime·entersyscall(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(SB)
| RET
| ok:
| MOVD R0, r1+56(FP) // r1
| MOVD R1, r2+64(FP) // r2
| MOVD ZR, err+72(FP) // errno
| BL runtime·exitsyscall(SB)
| RET
|
| TEXT ·RawSyscall(SB),NOSPLIT,$0-56
| 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
| RET
| ok:
| MOVD R0, r1+32(FP) // r1
| MOVD R1, r2+40(FP) // r2
| MOVD ZR, err+48(FP) // errno
| RET
|
| TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
| 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
| RET
| ok:
| MOVD R0, r1+56(FP) // r1
| MOVD R1, r2+64(FP) // r2
| MOVD ZR, err+72(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
|
|
