diff options
Diffstat (limited to 'vendor/golang.org/x/sys/unix/gccgo_c.c')
-rw-r--r-- | vendor/golang.org/x/sys/unix/gccgo_c.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/vendor/golang.org/x/sys/unix/gccgo_c.c b/vendor/golang.org/x/sys/unix/gccgo_c.c new file mode 100644 index 0000000..d468b7b --- /dev/null +++ b/vendor/golang.org/x/sys/unix/gccgo_c.c | |||
@@ -0,0 +1,44 @@ | |||
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 | } | ||