| 1 | /* ELF symbol initialization functions for VDSO objects. Linux version. |
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| 2 | Copyright (C) 2020-2024 Free Software Foundation, Inc. |
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| 3 | This file is part of the GNU C Library. |
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| 4 | |
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| 5 | The GNU C Library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Lesser General Public |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2.1 of the License, or (at your option) any later version. |
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| 9 | |
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| 10 | The GNU C Library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Lesser General Public License for more details. |
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| 14 | |
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| 15 | You should have received a copy of the GNU Lesser General Public |
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| 16 | License along with the GNU C Library; if not, see |
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| 17 | <https://www.gnu.org/licenses/>. */ |
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| 18 | |
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| 19 | #ifndef _DL_VDSO_INIT_H |
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| 20 | #define _DL_VDSO_INIT_H |
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| 21 | |
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| 22 | /* Initialize the VDSO functions pointers. */ |
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| 23 | static inline void __attribute__ ((always_inline)) |
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| 24 | setup_vdso_pointers (void) |
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| 25 | { |
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| 26 | #ifdef HAVE_CLOCK_GETTIME_VSYSCALL |
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| 27 | GLRO(dl_vdso_clock_gettime) = dl_vdso_vsym (HAVE_CLOCK_GETTIME_VSYSCALL); |
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| 28 | #endif |
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| 29 | #ifdef HAVE_CLOCK_GETTIME64_VSYSCALL |
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| 30 | GLRO(dl_vdso_clock_gettime64) = dl_vdso_vsym (HAVE_CLOCK_GETTIME64_VSYSCALL); |
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| 31 | #endif |
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| 32 | #ifdef HAVE_GETTIMEOFDAY_VSYSCALL |
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| 33 | GLRO(dl_vdso_gettimeofday) = dl_vdso_vsym (HAVE_GETTIMEOFDAY_VSYSCALL); |
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| 34 | #endif |
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| 35 | #ifdef HAVE_TIME_VSYSCALL |
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| 36 | GLRO(dl_vdso_time) = dl_vdso_vsym (HAVE_TIME_VSYSCALL); |
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| 37 | #endif |
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| 38 | #ifdef HAVE_GETCPU_VSYSCALL |
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| 39 | GLRO(dl_vdso_getcpu) = dl_vdso_vsym (HAVE_GETCPU_VSYSCALL); |
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| 40 | #endif |
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| 41 | #ifdef HAVE_CLOCK_GETRES_VSYSCALL |
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| 42 | GLRO(dl_vdso_clock_getres) = dl_vdso_vsym (HAVE_CLOCK_GETRES_VSYSCALL); |
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| 43 | #endif |
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| 44 | #ifdef HAVE_CLOCK_GETRES64_VSYSCALL |
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| 45 | GLRO(dl_vdso_clock_getres_time64) = dl_vdso_vsym (HAVE_CLOCK_GETRES64_VSYSCALL); |
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| 46 | #endif |
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| 47 | #ifdef HAVE_GET_TBFREQ |
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| 48 | GLRO(dl_vdso_get_tbfreq) = dl_vdso_vsym (HAVE_GET_TBFREQ); |
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| 49 | #endif |
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| 50 | } |
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| 51 | |
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| 52 | #endif |
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| 53 | |
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