sysdeps/i386/dl-procinfo.h

   1 /* i386 version of processor capability information handling macros.
   2    Copyright (C) 1998-2015 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, see
  18    <http://www.gnu.org/licenses/>.  */
  19
  20 #ifndef _DL_PROCINFO_H
  21 #define _DL_PROCINFO_H  1
  22 #include <ldsodefs.h>
  23
  24 #define _DL_HWCAP_COUNT 32
  25
  26 #define _DL_PLATFORMS_COUNT     4
  27
  28 /* Start at 48 to reserve some space.  */
  29 #define _DL_FIRST_PLATFORM      48
  30 /* Mask to filter out platforms.  */
  31 #define _DL_HWCAP_PLATFORM      (((1ULL << _DL_PLATFORMS_COUNT) - 1) \
  32                                  << _DL_FIRST_PLATFORM)
  33
  34 enum
  35 {
  36   HWCAP_I386_FPU   = 1 << 0,
  37   HWCAP_I386_VME   = 1 << 1,
  38   HWCAP_I386_DE    = 1 << 2,
  39   HWCAP_I386_PSE   = 1 << 3,
  40   HWCAP_I386_TSC   = 1 << 4,
  41   HWCAP_I386_MSR   = 1 << 5,
  42   HWCAP_I386_PAE   = 1 << 6,
  43   HWCAP_I386_MCE   = 1 << 7,
  44   HWCAP_I386_CX8   = 1 << 8,
  45   HWCAP_I386_APIC  = 1 << 9,
  46   HWCAP_I386_SEP   = 1 << 11,
  47   HWCAP_I386_MTRR  = 1 << 12,
  48   HWCAP_I386_PGE   = 1 << 13,
  49   HWCAP_I386_MCA   = 1 << 14,
  50   HWCAP_I386_CMOV  = 1 << 15,
  51   HWCAP_I386_FCMOV = 1 << 16,
  52   HWCAP_I386_MMX   = 1 << 23,
  53   HWCAP_I386_OSFXSR = 1 << 24,
  54   HWCAP_I386_XMM   = 1 << 25,
  55   HWCAP_I386_XMM2  = 1 << 26,
  56   HWCAP_I386_AMD3D = 1 << 31,
  57
  58   /* XXX Which others to add here?  */
  59   HWCAP_IMPORTANT = (HWCAP_I386_XMM2)
  60
  61 };
  62
  63 /* We cannot provide a general printing function.  */
  64 #define _dl_procinfo(type, word) -1
  65
  66 static inline const char *
  67 __attribute__ ((unused))
  68 _dl_hwcap_string (int idx)
  69 {
  70   return GLRO(dl_x86_cap_flags)[idx];
  71 };
  72
  73 static inline const char *
  74 __attribute__ ((unused))
  75 _dl_platform_string (int idx)
  76 {
  77   return GLRO(dl_x86_platforms)[idx - _DL_FIRST_PLATFORM];
  78 };
  79
  80 static inline int
  81 __attribute__ ((unused, always_inline))
  82 _dl_string_hwcap (const char *str)
  83 {
  84   int i;
  85
  86   for (i = 0; i < _DL_HWCAP_COUNT; i++)
  87     {
  88       if (strcmp (str, GLRO(dl_x86_cap_flags)[i]) == 0)
  89         return i;
  90     }
  91   return -1;
  92 };
  93
  94 static inline int
  95 __attribute__ ((unused, always_inline))
  96 _dl_string_platform (const char *str)
  97 {
  98   int i;
  99
 100   if (str != NULL)
 101     for (i = 0; i < _DL_PLATFORMS_COUNT; ++i)
 102       {
 103         if (strcmp (str, GLRO(dl_x86_platforms)[i]) == 0)
 104           return _DL_FIRST_PLATFORM + i;
 105       }
 106   return -1;
 107 };
 108
 109 #endif /* dl-procinfo.h */