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// 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 calls for arm, Linux
//
#define SYS_BASE 0x00900000
#define SYS_syscall (SYS_BASE+113);
// TODO(kaib): handle error returns
// func Syscall(syscall uintptr, a1, a2, a3 uintptr) (r1, r2, err uintptr);
TEXT syscall·Syscall(SB),7,$0
BL sys·entersyscall(SB)
MOVW 4(SP), R7
MOVW 8(SP), R0
MOVW 12(SP), R1
MOVW 16(SP), R2
SWI $SYS_syscall
MOVW R0, 20(SP) // r1
MOVW R1, 24(SP) // r2
MOVW $0, R0
MOVW R0, 28(SP) // errno
BL sys·exitsyscall(SB)
RET
// func Syscall6(trap uintptr, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr);
// Actually Syscall5 but the rest of the code expects it to be named Syscall6.
TEXT syscall·Syscall6(SB),7,$0
BL sys·entersyscall(SB)
MOVW 4(SP), R7 // syscall entry
MOVW 8(SP), R0
MOVW 12(SP), R1
MOVW 16(SP), R2
MOVW 20(SP), R3
MOVW 24(SP), R4
MOVW 28(SP), R5
SWI $SYS_syscall
MOVW R0, 32(SP) // r1
MOVW R1, 36(SP) // r2
MOVW $0, R0
MOVW R0, 40(SP) // errno
BL sys·exitsyscall(SB)
RET
// func RawSyscall(trap uintptr, a1, a2, a3 uintptr) (r1, r2, err uintptr);
TEXT syscall·RawSyscall(SB),7,$0
MOVW 4(SP), R7 // syscall entry
MOVW 8(SP), R0
MOVW 12(SP), R1
MOVW 16(SP), R2
SWI $SYS_syscall
MOVW R0, 20(SP) // r1
MOVW R1, 24(SP) // r2
MOVW $0, R0
MOVW R0, 28(SP) // errno
RET
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