| /* Initialization code run first thing by the ELF startup code. Linux/PowerPC. |
| Copyright (C) 2007-2018 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> |
| |
| int (*VDSO_SYMBOL(gettimeofday)) (struct timeval *, void *) |
| attribute_hidden; |
| int (*VDSO_SYMBOL(clock_gettime)) (clockid_t, struct timespec *); |
| int (*VDSO_SYMBOL(clock_getres)) (clockid_t, struct timespec *); |
| unsigned long long (*VDSO_SYMBOL(get_tbfreq)) (void); |
| int (*VDSO_SYMBOL(getcpu)) (unsigned *, unsigned *); |
| time_t (*VDSO_SYMBOL(time)) (time_t *); |
| |
| #if defined(__PPC64__) || defined(__powerpc64__) |
| void *VDSO_SYMBOL(sigtramp_rt64); |
| #else |
| void *VDSO_SYMBOL(sigtramp32); |
| void *VDSO_SYMBOL(sigtramp_rt32); |
| #endif |
| |
| static inline void |
| _libc_vdso_platform_setup (void) |
| { |
| PREPARE_VERSION (linux2615, "LINUX_2.6.15", 123718565); |
| |
| void *p = _dl_vdso_vsym ("__kernel_gettimeofday", &linux2615); |
| PTR_MANGLE (p); |
| VDSO_SYMBOL (gettimeofday) = p; |
| |
| p = _dl_vdso_vsym ("__kernel_clock_gettime", &linux2615); |
| PTR_MANGLE (p); |
| VDSO_SYMBOL (clock_gettime) = p; |
| |
| p = _dl_vdso_vsym ("__kernel_clock_getres", &linux2615); |
| PTR_MANGLE (p); |
| VDSO_SYMBOL (clock_getres) = p; |
| |
| p = _dl_vdso_vsym ("__kernel_get_tbfreq", &linux2615); |
| PTR_MANGLE (p); |
| VDSO_SYMBOL (get_tbfreq) = p; |
| |
| p = _dl_vdso_vsym ("__kernel_getcpu", &linux2615); |
| PTR_MANGLE (p); |
| VDSO_SYMBOL (getcpu) = p; |
| |
| p = _dl_vdso_vsym ("__kernel_time", &linux2615); |
| PTR_MANGLE (p); |
| VDSO_SYMBOL (time) = p; |
| |
| /* PPC64 uses only one signal trampoline symbol, while PPC32 will use |
| two depending if SA_SIGINFO is used (__kernel_sigtramp_rt32) or not |
| (__kernel_sigtramp32). |
| There is no need to pointer mangle these symbol because they will |
| used only for pointer comparison. */ |
| #if defined(__PPC64__) || defined(__powerpc64__) |
| VDSO_SYMBOL(sigtramp_rt64) = _dl_vdso_vsym ("__kernel_sigtramp_rt64", |
| &linux2615); |
| #else |
| VDSO_SYMBOL(sigtramp32) = _dl_vdso_vsym ("__kernel_sigtramp32", &linux2615); |
| VDSO_SYMBOL(sigtramp_rt32) = _dl_vdso_vsym ("__kernel_sigtramp_rt32", |
| &linux2615); |
| #endif |
| } |
| |
| # define VDSO_SETUP _libc_vdso_platform_setup |
| #endif |
| |
| #include <csu/init-first.c> |