1  /* Common ifunc selection utils
       2     All versions must be listed in ifunc-impl-list.c.
       3     Copyright (C) 2022-2023 Free Software Foundation, Inc.
       4     This file is part of the GNU C Library.
       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, see
      18     <https://www.gnu.org/licenses/>.  */
      19  
      20  #ifndef _ISA_IFUNC_MACROS_H
      21  #define _ISA_IFUNC_MACROS_H 1
      22  
      23  #include <isa-level.h>
      24  #include <sys/cdefs.h>
      25  #include <stdlib.h>
      26  
      27  /* Only include at the level of the minimum build ISA or higher. I.e
      28     if built with ISA=V1, then include all implementations. On the
      29     other hand if built with ISA=V3 only include V3/V4
      30     implementations. If there is no implementation at or above the
      31     minimum build ISA level, then include the highest ISA level
      32     implementation.  */
      33  #if MINIMUM_X86_ISA_LEVEL <= 4
      34  # define X86_IFUNC_IMPL_ADD_V4(...) IFUNC_IMPL_ADD (__VA_ARGS__)
      35  #endif
      36  #if MINIMUM_X86_ISA_LEVEL <= 3
      37  # define X86_IFUNC_IMPL_ADD_V3(...) IFUNC_IMPL_ADD (__VA_ARGS__)
      38  #endif
      39  #if MINIMUM_X86_ISA_LEVEL <= 2
      40  # define X86_IFUNC_IMPL_ADD_V2(...) IFUNC_IMPL_ADD (__VA_ARGS__)
      41  #endif
      42  #if MINIMUM_X86_ISA_LEVEL <= 1
      43  # define X86_IFUNC_IMPL_ADD_V1(...) IFUNC_IMPL_ADD (__VA_ARGS__)
      44  #endif
      45  
      46  #ifndef X86_IFUNC_IMPL_ADD_V4
      47  # define X86_IFUNC_IMPL_ADD_V4(...)
      48  #endif
      49  #ifndef X86_IFUNC_IMPL_ADD_V3
      50  # define X86_IFUNC_IMPL_ADD_V3(...)
      51  #endif
      52  #ifndef X86_IFUNC_IMPL_ADD_V2
      53  # define X86_IFUNC_IMPL_ADD_V2(...)
      54  #endif
      55  #ifndef X86_IFUNC_IMPL_ADD_V1
      56  # define X86_IFUNC_IMPL_ADD_V1(...)
      57  #endif
      58  
      59  #endif