sysdeps/unix/sysv/linux/powerpc/init-first.c

   1 /* Initialization code run first thing by the ELF startup code.  Linux/PowerPC.
   2    Copyright (C) 2007-2014 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    <http://www.gnu.org/licenses/>.  */
  18
  19 #ifdef SHARED
  20 # include <dl-vdso.h>
  21 # undef __gettimeofday
  22 # undef __clock_gettime
  23 # undef __clock_getres
  24 # include <bits/libc-vdso.h>
  25
  26 void *__vdso_gettimeofday attribute_hidden;
  27 void *__vdso_clock_gettime;
  28 void *__vdso_clock_getres;
  29 void *__vdso_get_tbfreq;
  30 void *__vdso_getcpu;
  31 void *__vdso_time;
  32 #if defined(__PPC64__) || defined(__powerpc64__)
  33 void *__vdso_sigtramp_rt64;
  34 #else
  35 void *__vdso_sigtramp32;
  36 void *__vdso_sigtramp_rt32;
  37 #endif
  38
  39 static inline void
  40 _libc_vdso_platform_setup (void)
  41 {
  42   PREPARE_VERSION (linux2615, "LINUX_2.6.15", 123718565);
  43
  44   __vdso_gettimeofday = _dl_vdso_vsym ("__kernel_gettimeofday", &linux2615);
  45
  46   __vdso_clock_gettime = _dl_vdso_vsym ("__kernel_clock_gettime", &linux2615);
  47
  48   __vdso_clock_getres = _dl_vdso_vsym ("__kernel_clock_getres", &linux2615);
  49
  50   __vdso_get_tbfreq = _dl_vdso_vsym ("__kernel_get_tbfreq", &linux2615);
  51
  52   __vdso_getcpu = _dl_vdso_vsym ("__kernel_getcpu", &linux2615);
  53
  54   __vdso_time = _dl_vdso_vsym ("__kernel_time", &linux2615);
  55
  56   /* PPC64 uses only one signal trampoline symbol, while PPC32 will use
  57      two depending if SA_SIGINFO is used (__kernel_sigtramp_rt32) or not
  58      (__kernel_sigtramp32).  */
  59 #if defined(__PPC64__) || defined(__powerpc64__)
  60   __vdso_sigtramp_rt64 = _dl_vdso_vsym ("__kernel_sigtramp_rt64", &linux2615);
  61 #else
  62   __vdso_sigtramp32 = _dl_vdso_vsym ("__kernel_sigtramp32", &linux2615);
  63   __vdso_sigtramp_rt32 = _dl_vdso_vsym ("__kernel_sigtramp_rt32", &linux2615);
  64 #endif
  65 }
  66
  67 # define VDSO_SETUP _libc_vdso_platform_setup
  68 #endif
  69
  70 #include <csu/init-first.c>