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

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

18
struct ret {
19
	uintptr_t r;
20
	uintptr_t err;
21
};
22

23
struct 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)
24
  __asm__(GOSYM_PREFIX GOPKGPATH ".realSyscall");
25

26
struct ret
27
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)
28
{
29
	struct ret r;
30

31
	errno = 0;
32
	r.r = syscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9);
33
	r.err = errno;
34
	return r;
35
}
36

37
uintptr_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)
38
  __asm__(GOSYM_PREFIX GOPKGPATH ".realSyscallNoError");
39

40
uintptr_t
41
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)
42
{
43
	return syscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9);
44
}
45

46