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 // +build gccgo
6 // +build !aix
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
19 struct ret {
20 uintptr_t r;
21 uintptr_t err;
22 };
23
24 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)
25 __asm__(GOSYM_PREFIX GOPKGPATH ".realSyscall");
26
27 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)28 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)
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
38 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)
39 __asm__(GOSYM_PREFIX GOPKGPATH ".realSyscallNoError");
40
41 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)42 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)
43 {
44 return syscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9);
45 }
46