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| // +build netbsd freebsd openbsd dragonfly
|
| // Copyright 2009 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"
| #include "funcdata.h"
|
| //
| // System call support for AMD64 unixes
| //
|
| // func Syscall(trap int64, a1, a2, a3 int64) (r1, r2, err int64)
| // func Syscall6(trap int64, a1, a2, a3, a4, a5, a6 int64) (r1, r2, err int64)
| // Trap # in AX, args in DI SI DX, return in AX DX
|
| TEXT ·Syscall(SB),NOSPLIT,$0-56
| CALL runtime·entersyscall(SB)
| MOVQ trap+0(FP), AX // syscall entry
| MOVQ a1+8(FP), DI
| MOVQ a2+16(FP), SI
| MOVQ a3+24(FP), DX
| MOVQ $0, R10
| MOVQ $0, R8
| MOVQ $0, R9
| SYSCALL
| JCC ok
| MOVQ $-1, r1+32(FP) // r1
| MOVQ $0, r2+40(FP) // r2
| MOVQ AX, err+48(FP) // errno
| CALL runtime·exitsyscall(SB)
| RET
| ok:
| MOVQ AX, r1+32(FP) // r1
| MOVQ DX, r2+40(FP) // r2
| MOVQ $0, err+48(FP) // errno
| CALL runtime·exitsyscall(SB)
| RET
|
| TEXT ·Syscall6(SB),NOSPLIT,$0-80
| CALL runtime·entersyscall(SB)
| MOVQ trap+0(FP), AX // syscall entry
| MOVQ a1+8(FP), DI
| MOVQ a2+16(FP), SI
| MOVQ a3+24(FP), DX
| MOVQ a4+32(FP), R10
| MOVQ a5+40(FP), R8
| MOVQ a6+48(FP), R9
| SYSCALL
| JCC ok6
| MOVQ $-1, r1+56(FP) // r1
| MOVQ $0, r2+64(FP) // r2
| MOVQ AX, err+72(FP) // errno
| CALL runtime·exitsyscall(SB)
| RET
| ok6:
| MOVQ AX, r1+56(FP) // r1
| MOVQ DX, r2+64(FP) // r2
| MOVQ $0, err+72(FP) // errno
| CALL runtime·exitsyscall(SB)
| RET
|
| TEXT ·RawSyscall(SB),NOSPLIT,$0-56
| MOVQ a1+8(FP), DI
| MOVQ a2+16(FP), SI
| MOVQ a3+24(FP), DX
| MOVQ $0, R10
| MOVQ $0, R8
| MOVQ $0, R9
| MOVQ trap+0(FP), AX // syscall entry
| SYSCALL
| JCC ok1
| MOVQ $-1, r1+32(FP) // r1
| MOVQ $0, r2+40(FP) // r2
| MOVQ AX, err+48(FP) // errno
| RET
| ok1:
| MOVQ AX, r1+32(FP) // r1
| MOVQ DX, r2+40(FP) // r2
| MOVQ $0, err+48(FP) // errno
| RET
|
| TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
| MOVQ a1+8(FP), DI
| MOVQ a2+16(FP), SI
| MOVQ a3+24(FP), DX
| MOVQ a4+32(FP), R10
| MOVQ a5+40(FP), R8
| MOVQ a6+48(FP), R9
| MOVQ trap+0(FP), AX // syscall entry
| SYSCALL
| JCC ok2
| MOVQ $-1, r1+56(FP) // r1
| MOVQ $0, r2+64(FP) // r2
| MOVQ AX, err+72(FP) // errno
| RET
| ok2:
| MOVQ AX, r1+56(FP) // r1
| MOVQ DX, r2+64(FP) // r2
| MOVQ $0, err+72(FP) // errno
| RET
|
|
