1  /* glibc-hwcaps subdirectory test.  powerpc64le version.
       2     Copyright (C) 2020-2023 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  #include <stdio.h>
      20  #include <string.h>
      21  #include <support/check.h>
      22  #include <sys/auxv.h>
      23  #include <sys/param.h>
      24  
      25  extern int marker2 (void);
      26  extern int marker3 (void);
      27  
      28  /* Return the POWER level, 8 for the baseline.  */
      29  static int
      30  compute_level (void)
      31  {
      32    const char *platform = (const char *) getauxval (AT_PLATFORM);
      33    if (strcmp (platform, "power8") == 0)
      34      return 8;
      35    if (strcmp (platform, "power9") == 0)
      36      return 9;
      37    if (strcmp (platform, "power10") == 0)
      38      return 10;
      39    printf ("warning: unrecognized AT_PLATFORM value: %s\n", platform);
      40    /* Assume that the new platform supports POWER10.  */
      41    return 10;
      42  }
      43  
      44  static int
      45  do_test (void)
      46  {
      47    int level = compute_level ();
      48    printf ("info: detected POWER level: %d\n", level);
      49    TEST_COMPARE (marker2 (), MIN (level - 7, 2));
      50    TEST_COMPARE (marker3 (), MIN (level - 7, 3));
      51    return 0;
      52  }
      53  
      54  #include <support/test-driver.c>