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
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