| 1 | /* ELF symbol initialization functions for VDSO objects. Linux version. |
|---|
| 2 | Copyright (C) 2020-2022 Free Software Foundation, Inc. |
|---|
| 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 |
|---|
| 16 | License along with the GNU C Library; if not, see |
|---|
| 17 | <https://www.gnu.org/licenses/>. */ |
|---|
| 18 | |
|---|
| 19 | #ifndef _DL_VDSO_INIT_H |
|---|
| 20 | #define _DL_VDSO_INIT_H |
|---|
| 21 | |
|---|
| 22 | /* Initialize the VDSO functions pointers. */ |
|---|
| 23 | static inline void __attribute__ ((always_inline)) |
|---|
| 24 | setup_vdso_pointers (void) |
|---|
| 25 | { |
|---|
| 26 | #ifdef HAVE_CLOCK_GETTIME_VSYSCALL |
|---|
| 27 | GLRO(dl_vdso_clock_gettime) = dl_vdso_vsym (HAVE_CLOCK_GETTIME_VSYSCALL); |
|---|
| 28 | #endif |
|---|
| 29 | #ifdef HAVE_CLOCK_GETTIME64_VSYSCALL |
|---|
| 30 | GLRO(dl_vdso_clock_gettime64) = dl_vdso_vsym (HAVE_CLOCK_GETTIME64_VSYSCALL); |
|---|
| 31 | #endif |
|---|
| 32 | #ifdef HAVE_GETTIMEOFDAY_VSYSCALL |
|---|
| 33 | GLRO(dl_vdso_gettimeofday) = dl_vdso_vsym (HAVE_GETTIMEOFDAY_VSYSCALL); |
|---|
| 34 | #endif |
|---|
| 35 | #ifdef HAVE_TIME_VSYSCALL |
|---|
| 36 | GLRO(dl_vdso_time) = dl_vdso_vsym (HAVE_TIME_VSYSCALL); |
|---|
| 37 | #endif |
|---|
| 38 | #ifdef HAVE_GETCPU_VSYSCALL |
|---|
| 39 | GLRO(dl_vdso_getcpu) = dl_vdso_vsym (HAVE_GETCPU_VSYSCALL); |
|---|
| 40 | #endif |
|---|
| 41 | #ifdef HAVE_CLOCK_GETRES_VSYSCALL |
|---|
| 42 | GLRO(dl_vdso_clock_getres) = dl_vdso_vsym (HAVE_CLOCK_GETRES_VSYSCALL); |
|---|
| 43 | #endif |
|---|
| 44 | #ifdef HAVE_CLOCK_GETRES64_VSYSCALL |
|---|
| 45 | GLRO(dl_vdso_clock_getres_time64) = dl_vdso_vsym (HAVE_CLOCK_GETRES64_VSYSCALL); |
|---|
| 46 | #endif |
|---|
| 47 | #ifdef HAVE_GET_TBFREQ |
|---|
| 48 | GLRO(dl_vdso_get_tbfreq) = dl_vdso_vsym (HAVE_GET_TBFREQ); |
|---|
| 49 | #endif |
|---|
| 50 | } |
|---|
| 51 | |
|---|
| 52 | #endif |
|---|
| 53 | |
|---|
