2009-11-17 09:20:58 -07:00
|
|
|
// 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.
|
|
|
|
|
|
|
|
//
|
|
|
|
// System call support for AMD64, FreeBSD
|
|
|
|
//
|
|
|
|
|
|
|
|
// 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
|
|
|
|
|
2010-01-25 19:52:55 -07:00
|
|
|
TEXT ·Syscall(SB),7,$0
|
2009-11-17 09:20:58 -07:00
|
|
|
CALL runtime·entersyscall(SB)
|
|
|
|
MOVQ 16(SP), DI
|
|
|
|
MOVQ 24(SP), SI
|
|
|
|
MOVQ 32(SP), DX
|
|
|
|
MOVQ $0, R10
|
|
|
|
MOVQ $0, R8
|
|
|
|
MOVQ $0, R9
|
|
|
|
MOVQ 8(SP), AX // syscall entry
|
|
|
|
SYSCALL
|
|
|
|
JCC ok
|
|
|
|
MOVQ $-1, 40(SP) // r1
|
|
|
|
MOVQ $0, 48(SP) // r2
|
|
|
|
MOVQ AX, 56(SP) // errno
|
|
|
|
CALL runtime·exitsyscall(SB)
|
|
|
|
RET
|
|
|
|
ok:
|
|
|
|
MOVQ AX, 40(SP) // r1
|
|
|
|
MOVQ DX, 48(SP) // r2
|
|
|
|
MOVQ $0, 56(SP) // errno
|
|
|
|
CALL runtime·exitsyscall(SB)
|
|
|
|
RET
|
|
|
|
|
2010-01-25 19:52:55 -07:00
|
|
|
TEXT ·Syscall6(SB),7,$0
|
2009-11-17 09:20:58 -07:00
|
|
|
CALL runtime·entersyscall(SB)
|
|
|
|
MOVQ 16(SP), DI
|
|
|
|
MOVQ 24(SP), SI
|
|
|
|
MOVQ 32(SP), DX
|
|
|
|
MOVQ 40(SP), R10
|
|
|
|
MOVQ 48(SP), R8
|
|
|
|
MOVQ 56(SP), R9
|
|
|
|
MOVQ 8(SP), AX // syscall entry
|
|
|
|
SYSCALL
|
|
|
|
JCC ok6
|
|
|
|
MOVQ $-1, 64(SP) // r1
|
|
|
|
MOVQ $0, 72(SP) // r2
|
|
|
|
MOVQ AX, 80(SP) // errno
|
|
|
|
CALL runtime·exitsyscall(SB)
|
|
|
|
RET
|
|
|
|
ok6:
|
|
|
|
MOVQ AX, 64(SP) // r1
|
|
|
|
MOVQ DX, 72(SP) // r2
|
|
|
|
MOVQ $0, 80(SP) // errno
|
|
|
|
CALL runtime·exitsyscall(SB)
|
|
|
|
RET
|
|
|
|
|
2010-01-25 19:52:55 -07:00
|
|
|
TEXT ·RawSyscall(SB),7,$0
|
2009-11-17 09:20:58 -07:00
|
|
|
MOVQ 16(SP), DI
|
|
|
|
MOVQ 24(SP), SI
|
|
|
|
MOVQ 32(SP), DX
|
|
|
|
MOVQ $0, R10
|
|
|
|
MOVQ $0, R8
|
|
|
|
MOVQ $0, R9
|
|
|
|
MOVQ 8(SP), AX // syscall entry
|
|
|
|
SYSCALL
|
|
|
|
JCC ok1
|
|
|
|
MOVQ $-1, 40(SP) // r1
|
|
|
|
MOVQ $0, 48(SP) // r2
|
|
|
|
MOVQ AX, 56(SP) // errno
|
|
|
|
RET
|
|
|
|
ok1:
|
|
|
|
MOVQ AX, 40(SP) // r1
|
|
|
|
MOVQ DX, 48(SP) // r2
|
|
|
|
MOVQ $0, 56(SP) // errno
|
|
|
|
RET
|
2011-03-16 20:03:01 -06:00
|
|
|
|
|
|
|
TEXT ·RawSyscall6(SB),7,$0
|
|
|
|
MOVQ 16(SP), DI
|
|
|
|
MOVQ 24(SP), SI
|
|
|
|
MOVQ 32(SP), DX
|
|
|
|
MOVQ 40(SP), R10
|
|
|
|
MOVQ 48(SP), R8
|
|
|
|
MOVQ 56(SP), R9
|
|
|
|
MOVQ 8(SP), AX // syscall entry
|
|
|
|
SYSCALL
|
|
|
|
JCC ok2
|
|
|
|
MOVQ $-1, 64(SP) // r1
|
|
|
|
MOVQ $0, 72(SP) // r2
|
|
|
|
MOVQ AX, 80(SP) // errno
|
|
|
|
RET
|
|
|
|
ok2:
|
|
|
|
MOVQ AX, 64(SP) // r1
|
|
|
|
MOVQ DX, 72(SP) // r2
|
|
|
|
MOVQ $0, 80(SP) // errno
|
|
|
|
RET
|