sysdeps/powerpc/powerpc64/le/dl-hwcap-check.h

   1 /* Check for hardware capabilities after HWCAP parsing.  powerpc64le version.
   2    Copyright (C) 2021-2023 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 #ifndef _DL_HWCAP_CHECK_H
  20 #define _DL_HWCAP_CHECK_H
  21
  22 #include <gcc-macros.h>
  23 #include <ldsodefs.h>
  24
  25 static inline void
  26 dl_hwcap_check (void)
  27 {
  28 #ifdef GCCMACRO_ARCH_PWR9
  29   if ((GLRO (dl_hwcap2) & PPC_FEATURE2_ARCH_3_00) == 0)
  30     _dl_fatal_printf ("\
  31 Fatal glibc error: CPU lacks ISA 3.00 support (POWER9 or later required)\n");
  32 #endif
  33 #ifdef GCCMACRO__FLOAT128_HARDWARE__
  34   if ((GLRO (dl_hwcap2) & PPC_FEATURE2_HAS_IEEE128) == 0)
  35     _dl_fatal_printf ("\
  36 Fatal glibc error: CPU lacks float128 support (POWER 9 or later required)\n");
  37 #endif
  38    /* This check is not actually reached when building for POWER10 and
  39       running on POWER9 because there are faulting PCREL instructions
  40       before this point.  */
  41 #if defined GCCMACRO_ARCH_PWR10 || defined GCCMACRO__PCREL__
  42   if ((GLRO (dl_hwcap2) & PPC_FEATURE2_ARCH_3_1) == 0)
  43     _dl_fatal_printf ("\
  44 Fatal glibc error: CPU lacks ISA 3.10 support (POWER10 or later required)\n");
  45 #endif
  46 #ifdef GCCMACRO__MMA__
  47   if ((GLRO (dl_hwcap2) & PPC_FEATURE2_MMA) == 0)
  48     _dl_fatal_printf ("\
  49 Fatal glibc error: CPU lacks MMA support (POWER10 or later required)\n");
  50 #endif
  51 }
  52
  53 #endif /* _DL_HWCAP_CHECK_H */