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// Copyright 2014 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"
#include "../runtime/syscall_nacl.h"
//
// System call support for ARM, Native Client
//
#define NACL_SYSCALL(code) \
MOVW $(0x10000 + ((code)<<5)), R8; BL (R8)
#define NACL_SYSJMP(code) \
MOVW $(0x10000 + ((code)<<5)), R8; B (R8)
TEXT syscall·Syscall(SB),NOSPLIT,$0-28
BL runtime·entersyscall(SB)
MOVW trap+0(FP), R8
MOVW a1+4(FP), R0
MOVW a2+8(FP), R1
MOVW a3+12(FP), R2
// more args would use R3, and then stack.
MOVW $0x10000, R7
ADD R8<<5, R7
BL (R7)
CMP $0, R0
BGE ok
MOVW $-1, R1
MOVW R1, r1+16(FP)
MOVW R1, r2+20(FP)
RSB $0, R0
MOVW R0, err+24(FP)
BL runtime·exitsyscall(SB)
RET
ok:
MOVW R0, r1+16(FP)
MOVW R1, r2+20(FP)
MOVW $0, R2
MOVW R2, err+24(FP)
BL runtime·exitsyscall(SB)
RET
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