mirror of
https://github.com/golang/go
synced 2024-11-20 03:04:40 -07:00
a6cb053026
Please see golang.org/cl/2588 for reasons behind the name change. We also need NO_LOCAL_POINTERS for assembly function with non-zero local frame size. Change-Id: Iac60aa7e76f4c2ece3726e28878fd539bfebf7a4 Reviewed-on: https://go-review.googlesource.com/2589 Reviewed-by: Ian Lance Taylor <iant@golang.org>
43 lines
894 B
ArmAsm
43 lines
894 B
ArmAsm
// 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 amd64, 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,$0-28
|
|
CALL runtime·entersyscall(SB)
|
|
MOVL trap+0(FP), AX
|
|
MOVL a1+4(FP), DI
|
|
MOVL a2+8(FP), SI
|
|
MOVL a3+12(FP), DX
|
|
// more args would use CX, R8, R9
|
|
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
|