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
|
/* RISC-V VDSO initialization
Copyright (C) 2017-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#ifdef SHARED
# include <dl-vdso.h>
# include <libc-vdso.h>
long int (*VDSO_SYMBOL (getcpu)) (unsigned int *, unsigned int *, void *)
attribute_hidden;
long int (*VDSO_SYMBOL (gettimeofday)) (struct timeval *, void *)
attribute_hidden;
long int (*VDSO_SYMBOL (clock_gettime)) (clockid_t, struct timespec *)
attribute_hidden;
long int (*VDSO_SYMBOL (clock_getres)) (clockid_t, struct timespec *)
attribute_hidden;
static inline void
_libc_vdso_platform_setup (void)
{
PREPARE_VERSION_KNOWN (linux_version, LINUX_4_15);
void *p = _dl_vdso_vsym ("__vdso_getcpu", &linux_version);
PTR_MANGLE (p);
VDSO_SYMBOL (getcpu) = p;
p = _dl_vdso_vsym ("__vdso_gettimeofday", &linux_version);
PTR_MANGLE (p);
VDSO_SYMBOL (gettimeofday) = p;
p = _dl_vdso_vsym ("__vdso_clock_gettime", &linux_version);
PTR_MANGLE (p);
VDSO_SYMBOL (clock_gettime) = p;
p = _dl_vdso_vsym ("__vdso_clock_getres", &linux_version);
PTR_MANGLE (p);
VDSO_SYMBOL (clock_getres) = p;
}
# define VDSO_SETUP _libc_vdso_platform_setup
#endif
#include <csu/init-first.c>
|
