1// 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//go:build gccgo && !aix && !hurd
 6// +build gccgo,!aix,!hurd
 7
 8#include <errno.h>
 9#include <stdint.h>
10#include <unistd.h>
11
12#define _STRINGIFY2_(x) #x
13#define _STRINGIFY_(x) _STRINGIFY2_(x)
14#define GOSYM_PREFIX _STRINGIFY_(__USER_LABEL_PREFIX__)
15
16// Call syscall from C code because the gccgo support for calling from
17// Go to C does not support varargs functions.
18
19struct ret {
20	uintptr_t r;
21	uintptr_t err;
22};
23
24struct ret gccgoRealSyscall(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  __asm__(GOSYM_PREFIX GOPKGPATH ".realSyscall");
26
27struct ret
28gccgoRealSyscall(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)
29{
30	struct ret r;
31
32	errno = 0;
33	r.r = syscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9);
34	r.err = errno;
35	return r;
36}
37
38uintptr_t gccgoRealSyscallNoError(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)
39  __asm__(GOSYM_PREFIX GOPKGPATH ".realSyscallNoError");
40
41uintptr_t
42gccgoRealSyscallNoError(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)
43{
44	return syscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9);
45}