2014-07-10 13:15:06 -06:00
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// Copyright 2014 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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2014-08-12 18:04:45 -06:00
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#include "textflag.h"
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2014-09-11 22:55:24 -06:00
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#include "funcdata.h"
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2014-07-10 13:15:06 -06:00
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#include "../runtime/syscall_nacl.h"
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//
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// System call support for ARM, Native Client
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//
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#define NACL_SYSCALL(code) \
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MOVW $(0x10000 + ((code)<<5)), R8; BL (R8)
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#define NACL_SYSJMP(code) \
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MOVW $(0x10000 + ((code)<<5)), R8; B (R8)
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2015-01-08 19:49:28 -07:00
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TEXT ·Syscall(SB),NOSPLIT,$0-28
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2014-07-10 13:15:06 -06:00
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BL runtime·entersyscall(SB)
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MOVW trap+0(FP), R8
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MOVW a1+4(FP), R0
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MOVW a2+8(FP), R1
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MOVW a3+12(FP), R2
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// more args would use R3, and then stack.
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MOVW $0x10000, R7
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ADD R8<<5, R7
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BL (R7)
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CMP $0, R0
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BGE ok
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MOVW $-1, R1
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MOVW R1, r1+16(FP)
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MOVW R1, r2+20(FP)
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RSB $0, R0
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MOVW R0, err+24(FP)
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BL runtime·exitsyscall(SB)
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RET
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ok:
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MOVW R0, r1+16(FP)
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MOVW R1, r2+20(FP)
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MOVW $0, R2
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MOVW R2, err+24(FP)
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BL runtime·exitsyscall(SB)
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RET
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