sysdeps/x86/dl-procinfo.c

   1 /* Data for x86 version of processor capability information.
   2    Copyright (C) 2017-2023 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    HWCAP_PLATFORMS_START and HWCAP_PLATFORMS_COUNT definitions in
  21    dl-hwcap.h.
  22
  23    If anything should be added here check whether the size of each string
  24    is still ok with the given array size.
  25
  26    All the #ifdefs in the definitions are quite irritating but
  27    necessary if we want to avoid duplicating the information.  There
  28    are three different modes:
  29
  30    - PROCINFO_DECL is defined.  This means we are only interested in
  31      declarations.
  32
  33    - PROCINFO_DECL is not defined:
  34
  35      + if SHARED is defined the file is included in an array
  36        initializer.  The .element = { ... } syntax is needed.
  37
  38      + if SHARED is not defined a normal array initialization is
  39        needed.
  40   */
  41
  42 #if !IS_IN (ldconfig)
  43 # if !defined PROCINFO_DECL && defined SHARED
  44   ._dl_x86_cpu_features
  45 # else
  46 PROCINFO_CLASS struct cpu_features _dl_x86_cpu_features
  47 # endif
  48 # ifndef PROCINFO_DECL
  49 = { }
  50 # endif
  51 # if !defined SHARED || defined PROCINFO_DECL
  52 ;
  53 # else
  54 ,
  55 # endif
  56 #endif
  57
  58 #if !defined PROCINFO_DECL && defined SHARED
  59   ._dl_x86_hwcap_flags
  60 #else
  61 PROCINFO_CLASS const char _dl_x86_hwcap_flags[3][9]
  62 #endif
  63 #ifndef PROCINFO_DECL
  64 = {
  65     "sse2", "x86_64", "avx512_1"
  66   }
  67 #endif
  68 #if !defined SHARED || defined PROCINFO_DECL
  69 ;
  70 #else
  71 ,
  72 #endif
  73
  74 #if !defined PROCINFO_DECL && defined SHARED
  75   ._dl_x86_platforms
  76 #else
  77 PROCINFO_CLASS const char _dl_x86_platforms[4][9]
  78 #endif
  79 #ifndef PROCINFO_DECL
  80 = {
  81     "i586", "i686", "haswell", "xeon_phi"
  82   }
  83 #endif
  84 #if !defined SHARED || defined PROCINFO_DECL
  85 ;
  86 #else
  87 ,
  88 #endif