mirror of https://github.com/gogits/gogs.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
41 lines
1014 B
41 lines
1014 B
// Copyright 2015 The Go Authors. All rights reserved. |
|
// Use of this source code is governed by a BSD-style |
|
// license that can be found in the LICENSE file. |
|
|
|
// +build gccgo |
|
|
|
#include <errno.h> |
|
#include <stdint.h> |
|
#include <unistd.h> |
|
|
|
#define _STRINGIFY2_(x) #x |
|
#define _STRINGIFY_(x) _STRINGIFY2_(x) |
|
#define GOSYM_PREFIX _STRINGIFY_(__USER_LABEL_PREFIX__) |
|
|
|
// Call syscall from C code because the gccgo support for calling from |
|
// Go to C does not support varargs functions. |
|
|
|
struct ret { |
|
uintptr_t r; |
|
uintptr_t err; |
|
}; |
|
|
|
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) |
|
{ |
|
struct ret r; |
|
|
|
errno = 0; |
|
r.r = syscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9); |
|
r.err = errno; |
|
return r; |
|
} |
|
|
|
// Define the use function in C so that it is not inlined. |
|
|
|
extern void use(void *) __asm__ (GOSYM_PREFIX GOPKGPATH ".use") __attribute__((noinline)); |
|
|
|
void |
|
use(void *p __attribute__ ((unused))) |
|
{ |
|
}
|
|
|