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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 "../../cmd/ld/textflag.h" // TODO: how to refer to this?
- #include "../runtime/syscall_nacl.h" // TODO: how to refer to this?
- //
- // 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 unix·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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