1 // Copyright 2013 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 #include "textflag.h" 6 #include "funcdata.h" 7 #include "../runtime/syscall_nacl.h" 8 9 // 10 // System call support for 386, Native Client 11 // 12 13 #define NACL_SYSCALL(code) \ 14 MOVL $(0x10000 + ((code)<<5)), AX; CALL AX 15 16 #define NACL_SYSJMP(code) \ 17 MOVL $(0x10000 + ((code)<<5)), AX; JMP AX 18 19 TEXT Syscall(SB),NOSPLIT,$12-28 20 NO_LOCAL_POINTERS 21 CALL runtimeentersyscall(SB) 22 MOVL trap+0(FP), AX 23 MOVL a1+4(FP), BX 24 MOVL BX, 0(SP) 25 MOVL a2+8(FP), BX 26 MOVL BX, 4(SP) 27 MOVL a3+12(FP), BX 28 MOVL BX, 8(SP) 29 SHLL $5, AX 30 ADDL $0x10000, AX 31 CALL AX 32 CMPL AX, $0 33 JGE ok 34 MOVL $-1, r1+16(FP) 35 MOVL $-1, r2+20(FP) 36 NEGL AX 37 MOVL AX, err+24(FP) 38 CALL runtimeexitsyscall(SB) 39 RET 40 ok: 41 MOVL AX, r1+16(FP) 42 MOVL DX, r2+20(FP) 43 MOVL $0, err+24(FP) 44 CALL runtimeexitsyscall(SB) 45 RET 46
