1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
|
/*-
* Copyright (c) 2013 Dmitry Chagin
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer
* in this position and unchanged.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _LINUX_VDSO_H_
#define _LINUX_VDSO_H_
#include <sys/types.h>
struct linux_vdso_sym {
SLIST_ENTRY(linux_vdso_sym) sym;
uint32_t size;
uintptr_t * ptr;
char symname[];
};
vm_object_t __elfN(linux_shared_page_init)(char **);
void __elfN(linux_shared_page_fini)(vm_object_t);
void __elfN(linux_vdso_fixup)(struct sysentvec *);
void __elfN(linux_vdso_reloc)(struct sysentvec *, long);
void __elfN(linux_vdso_sym_init)(struct linux_vdso_sym *);
#define LINUX_VDSO_SYM_INTPTR(name) \
uintptr_t name; \
LINUX_VDSO_SYM_DEFINE(name)
#define LINUX_VDSO_SYM_CHAR(name) \
const char * name; \
LINUX_VDSO_SYM_DEFINE(name)
#define LINUX_VDSO_SYM_DEFINE(name) \
static struct linux_vdso_sym name ## sym = { \
.symname = #name, \
.size = sizeof(#name), \
.ptr = (uintptr_t *)&name \
}; \
SYSINIT(__elfN(name ## _sym_init), SI_SUB_EXEC, \
SI_ORDER_FIRST, __elfN(linux_vdso_sym_init), &name ## sym); \
struct __hack
#endif /* _LINUX_VDSO_H_ */
|
