1  /* Get CPUID feature leaf.
       2     Copyright (C) 2021-2023 Free Software Foundation, Inc.
       3  
       4     The GNU C Library is free software; you can redistribute it and/or
       5     modify it under the terms of the GNU Lesser General Public
       6     License as published by the Free Software Foundation; either
       7     version 2.1 of the License, or (at your option) any later version.
       8  
       9     The GNU C Library is distributed in the hope that it will be useful,
      10     but WITHOUT ANY WARRANTY; without even the implied warranty of
      11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      12     Lesser General Public License for more details.
      13  
      14     You should have received a copy of the GNU Lesser General Public
      15     License along with the GNU C Library; if not, see
      16     <https://www.gnu.org/licenses/>.  */
      17  
      18  
      19  #include <ldsodefs.h>
      20  
      21  const struct cpuid_feature *
      22  __x86_get_cpuid_feature_leaf (unsigned int leaf)
      23  {
      24    static const struct cpuid_feature feature = {};
      25    if (leaf < CPUID_INDEX_MAX)
      26      return ((const struct cpuid_feature *)
      27  	      &GLRO(dl_x86_cpu_features).features[leaf]);
      28    else
      29      return &feature;
      30  }