sysdeps/i386/dl-procinfo.h

   1 /* i386 version of processor capability information handling macros.
   2    Copyright (C) 1998, 2000, 2003, 2004 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, write to the Free
  18    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19    02111-1307 USA.  */
  20
  21 #ifndef _DL_PROCINFO_H
  22 #define _DL_PROCINFO_H  1
  23 #include <ldsodefs.h>
  24
  25 #define _DL_HWCAP_COUNT 32
  26
  27 #define _DL_PLATFORMS_COUNT     4
  28
  29 /* Start at 48 to reserve some space.  */
  30 #define _DL_FIRST_PLATFORM      48
  31 /* Mask to filter out platforms.  */
  32 #define _DL_HWCAP_PLATFORM      (((1ULL << _DL_PLATFORMS_COUNT) - 1) \
  33                                  << _DL_FIRST_PLATFORM)
  34
  35 enum
  36 {
  37   HWCAP_I386_FPU   = 1 << 0,
  38   HWCAP_I386_VME   = 1 << 1,
  39   HWCAP_I386_DE    = 1 << 2,
  40   HWCAP_I386_PSE   = 1 << 3,
  41   HWCAP_I386_TSC   = 1 << 4,
  42   HWCAP_I386_MSR   = 1 << 5,
  43   HWCAP_I386_PAE   = 1 << 6,
  44   HWCAP_I386_MCE   = 1 << 7,
  45   HWCAP_I386_CX8   = 1 << 8,
  46   HWCAP_I386_APIC  = 1 << 9,
  47   HWCAP_I386_SEP   = 1 << 11,
  48   HWCAP_I386_MTRR  = 1 << 12,
  49   HWCAP_I386_PGE   = 1 << 13,
  50   HWCAP_I386_MCA   = 1 << 14,
  51   HWCAP_I386_CMOV  = 1 << 15,
  52   HWCAP_I386_FCMOV = 1 << 16,
  53   HWCAP_I386_MMX   = 1 << 23,
  54   HWCAP_I386_OSFXSR = 1 << 24,
  55   HWCAP_I386_XMM   = 1 << 25,
  56   HWCAP_I386_XMM2  = 1 << 26,
  57   HWCAP_I386_AMD3D = 1 << 31,
  58
  59   /* XXX Which others to add here?  */
  60   HWCAP_IMPORTANT = (HWCAP_I386_XMM2)
  61
  62 };
  63
  64 /* We cannot provide a general printing function.  */
  65 #define _dl_procinfo(word) -1
  66
  67 static inline const char *
  68 __attribute__ ((unused))
  69 _dl_hwcap_string (int idx)
  70 {
  71   return GLRO(dl_x86_cap_flags)[idx];
  72 };
  73
  74 static inline const char *
  75 __attribute__ ((unused))
  76 _dl_platform_string (int idx)
  77 {
  78   return GLRO(dl_x86_platforms)[idx - _DL_FIRST_PLATFORM];
  79 };
  80
  81 static inline int
  82 __attribute__ ((unused, always_inline))
  83 _dl_string_hwcap (const char *str)
  84 {
  85   int i;
  86
  87   for (i = 0; i < _DL_HWCAP_COUNT; i++)
  88     {
  89       if (strcmp (str, GLRO(dl_x86_cap_flags)[i]) == 0)
  90         return i;
  91     }
  92   return -1;
  93 };
  94
  95 static inline int
  96 __attribute__ ((unused, always_inline))
  97 _dl_string_platform (const char *str)
  98 {
  99   int i;
 100
 101   if (str != NULL)
 102     for (i = 0; i < _DL_PLATFORMS_COUNT; ++i)
 103       {
 104         if (strcmp (str, GLRO(dl_x86_platforms)[i]) == 0)
 105           return _DL_FIRST_PLATFORM + i;
 106       }
 107   return -1;
 108 };
 109
 110 #endif /* dl-procinfo.h */