sysdeps/x86_64/dl-procruntime.c

   1 /* Data for processor runtime information.  x86-64 version.
   2    Copyright (C) 2018-2024 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 /* This information must be kept in sync with the _DL_HWCAP_COUNT
  20    definition in dl-hwcap.h.
  21
  22    If anything should be added here check whether the size of each string
  23    is still ok with the given array size.
  24
  25    All the #ifdefs in the definitions are quite irritating but
  26    necessary if we want to avoid duplicating the information.  There
  27    are three different modes:
  28
  29    - PROCINFO_DECL is defined.  This means we are only interested in
  30      declarations.
  31
  32    - PROCINFO_DECL is not defined:
  33
  34      + if SHARED is defined the file is included in an array
  35        initializer.  The .element = { ... } syntax is needed.
  36
  37      + if SHARED is not defined a normal array initialization is
  38        needed.
  39   */
  40
  41 #ifndef PROCINFO_CLASS
  42 # define PROCINFO_CLASS
  43 #endif
  44
  45 #if !IS_IN (ldconfig)
  46 # if !defined PROCINFO_DECL && defined SHARED
  47   ._dl_x86_feature_1
  48 # else
  49 PROCINFO_CLASS unsigned int _dl_x86_feature_1
  50 # endif
  51 # ifndef PROCINFO_DECL
  52 = 0
  53 # endif
  54 # if !defined SHARED || defined PROCINFO_DECL
  55 ;
  56 # else
  57 ,
  58 # endif
  59
  60 # if !defined PROCINFO_DECL && defined SHARED
  61   ._dl_x86_feature_control
  62 # else
  63 PROCINFO_CLASS struct dl_x86_feature_control _dl_x86_feature_control
  64 # endif
  65 # ifndef PROCINFO_DECL
  66 = {
  67     .ibt = DEFAULT_DL_X86_CET_CONTROL,
  68     .shstk = DEFAULT_DL_X86_CET_CONTROL,
  69     .plt_rewrite = plt_rewrite_none,
  70   }
  71 # endif
  72 # if !defined SHARED || defined PROCINFO_DECL
  73 ;
  74 # else
  75 ,
  76 # endif
  77 #endif