| // Copyright 2013 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 386, Native Client | |
| // | |
| #define NACL_SYSCALL(code) \ | |
| MOVL $(0x10000 + ((code)<<5)), AX; CALL AX | |
| #define NACL_SYSJMP(code) \ | |
| MOVL $(0x10000 + ((code)<<5)), AX; JMP AX | |
| TEXT ·Syscall(SB),NOSPLIT,$12-28 | |
| NO_LOCAL_POINTERS | |
| CALL runtime·entersyscall(SB) | |
| MOVL trap+0(FP), AX | |
| MOVL a1+4(FP), BX | |
| MOVL BX, 0(SP) | |
| MOVL a2+8(FP), BX | |
| MOVL BX, 4(SP) | |
| MOVL a3+12(FP), BX | |
| MOVL BX, 8(SP) | |
| SHLL $5, AX | |
| ADDL $0x10000, AX | |
| CALL AX | |
| CMPL AX, $0 | |
| JGE ok | |
| MOVL $-1, r1+16(FP) | |
| MOVL $-1, r2+20(FP) | |
| NEGL AX | |
| MOVL AX, err+24(FP) | |
| CALL runtime·exitsyscall(SB) | |
| RET | |
| ok: | |
| MOVL AX, r1+16(FP) | |
| MOVL DX, r2+20(FP) | |
| MOVL $0, err+24(FP) | |
| CALL runtime·exitsyscall(SB) | |
| RET |