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93c65d43 | 1 | /* Initialization code run first thing by the ELF startup code. Linux/PowerPC. |
bfff8b1b | 2 | Copyright (C) 2007-2017 Free Software Foundation, Inc. |
8c2e201b UD |
3 | This file is part of the GNU C Library. |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 PE |
16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ | |
8c2e201b | 18 | |
75fb247e UD |
19 | #ifdef SHARED |
20 | # include <dl-vdso.h> | |
7bf8fb10 | 21 | # include <libc-vdso.h> |
8c2e201b | 22 | |
f534255e AZ |
23 | int (*VDSO_SYMBOL(gettimeofday)) (struct timeval *, void *) |
24 | attribute_hidden; | |
25 | int (*VDSO_SYMBOL(clock_gettime)) (clockid_t, struct timespec *); | |
26 | int (*VDSO_SYMBOL(clock_getres)) (clockid_t, struct timespec *); | |
27 | unsigned long long (*VDSO_SYMBOL(get_tbfreq)) (void); | |
28 | int (*VDSO_SYMBOL(getcpu)) (unsigned *, unsigned *); | |
29 | time_t (*VDSO_SYMBOL(time)) (time_t *); | |
30 | ||
d400dcac | 31 | #if defined(__PPC64__) || defined(__powerpc64__) |
f534255e | 32 | void *VDSO_SYMBOL(sigtramp_rt64); |
d400dcac | 33 | #else |
f534255e AZ |
34 | void *VDSO_SYMBOL(sigtramp32); |
35 | void *VDSO_SYMBOL(sigtramp_rt32); | |
d400dcac | 36 | #endif |
75fb247e UD |
37 | |
38 | static inline void | |
39 | _libc_vdso_platform_setup (void) | |
40 | { | |
fb84593c UD |
41 | PREPARE_VERSION (linux2615, "LINUX_2.6.15", 123718565); |
42 | ||
f534255e AZ |
43 | void *p = _dl_vdso_vsym ("__kernel_gettimeofday", &linux2615); |
44 | PTR_MANGLE (p); | |
45 | VDSO_SYMBOL (gettimeofday) = p; | |
fb84593c | 46 | |
f534255e AZ |
47 | p = _dl_vdso_vsym ("__kernel_clock_gettime", &linux2615); |
48 | PTR_MANGLE (p); | |
49 | VDSO_SYMBOL (clock_gettime) = p; | |
fb84593c | 50 | |
f534255e AZ |
51 | p = _dl_vdso_vsym ("__kernel_clock_getres", &linux2615); |
52 | PTR_MANGLE (p); | |
53 | VDSO_SYMBOL (clock_getres) = p; | |
fb84593c | 54 | |
f534255e AZ |
55 | p = _dl_vdso_vsym ("__kernel_get_tbfreq", &linux2615); |
56 | PTR_MANGLE (p); | |
57 | VDSO_SYMBOL (get_tbfreq) = p; | |
d5e0b9bd | 58 | |
f534255e AZ |
59 | p = _dl_vdso_vsym ("__kernel_getcpu", &linux2615); |
60 | PTR_MANGLE (p); | |
61 | VDSO_SYMBOL (getcpu) = p; | |
83e7640f | 62 | |
f534255e AZ |
63 | p = _dl_vdso_vsym ("__kernel_time", &linux2615); |
64 | PTR_MANGLE (p); | |
65 | VDSO_SYMBOL (time) = p; | |
d400dcac AZ |
66 | |
67 | /* PPC64 uses only one signal trampoline symbol, while PPC32 will use | |
68 | two depending if SA_SIGINFO is used (__kernel_sigtramp_rt32) or not | |
f534255e AZ |
69 | (__kernel_sigtramp32). |
70 | There is no need to pointer mangle these symbol because they will | |
71 | used only for pointer comparison. */ | |
d400dcac | 72 | #if defined(__PPC64__) || defined(__powerpc64__) |
f534255e AZ |
73 | VDSO_SYMBOL(sigtramp_rt64) = _dl_vdso_vsym ("__kernel_sigtramp_rt64", |
74 | &linux2615); | |
d400dcac | 75 | #else |
f534255e AZ |
76 | VDSO_SYMBOL(sigtramp32) = _dl_vdso_vsym ("__kernel_sigtramp32", &linux2615); |
77 | VDSO_SYMBOL(sigtramp_rt32) = _dl_vdso_vsym ("__kernel_sigtramp_rt32", | |
78 | &linux2615); | |
d400dcac | 79 | #endif |
75fb247e UD |
80 | } |
81 | ||
82 | # define VDSO_SETUP _libc_vdso_platform_setup | |
83 | #endif | |
84 | ||
93c65d43 | 85 | #include <csu/init-first.c> |