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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 | |
25 | 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) | |
26 | { | |
27 | struct ret r; | |
28 | ||
29 | errno = 0; | |
30 | r.r = syscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9); | |
31 | r.err = errno; | |
32 | return r; | |
33 | } | |
34 | ||
35 | uintptr_t | |
36 | 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) | |
37 | { | |
38 | return syscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9); | |
39 | } |