sysdeps/powerpc/powerpc64/le/tst-glibc-hwcaps.c

   1 /* glibc-hwcaps subdirectory test.  powerpc64le version.
   2    Copyright (C) 2020-2022 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>