blob: 46523ced65d59e69212ca337ba840f8f924b66d5 [file] [log] [blame]
Matthias Andreas Benkard832a54e2019-01-29 09:27:38 +01001// Copyright 2015 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// +build gccgo
6
7#include <errno.h>
8#include <stdint.h>
9#include <unistd.h>
10
11#define _STRINGIFY2_(x) #x
12#define _STRINGIFY_(x) _STRINGIFY2_(x)
13#define GOSYM_PREFIX _STRINGIFY_(__USER_LABEL_PREFIX__)
14
15// Call syscall from C code because the gccgo support for calling from
16// Go to C does not support varargs functions.
17
18struct ret {
19 uintptr_t r;
20 uintptr_t err;
21};
22
23struct ret
24gccgoRealSyscall(uintptr_t trap, uintptr_t a1, uintptr_t a2, uintptr_t a3, uintptr_t a4, uintptr_t a5, uintptr_t a6, uintptr_t a7, uintptr_t a8, uintptr_t a9)
25{
26 struct ret r;
27
28 errno = 0;
29 r.r = syscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9);
30 r.err = errno;
31 return r;
32}
33
34uintptr_t
35gccgoRealSyscallNoError(uintptr_t trap, uintptr_t a1, uintptr_t a2, uintptr_t a3, uintptr_t a4, uintptr_t a5, uintptr_t a6, uintptr_t a7, uintptr_t a8, uintptr_t a9)
36{
37 return syscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9);
38}