sysdeps/powerpc/powerpc64/le/fpu/multiarch/float128-ifunc-redirect-macros.h

   1 /* _Float128 aliasing macro support for ifunc generation on PPC.
   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 #ifndef _FLOAT128_IFUNC_REDIRECT_MACROS_PPC64LE
  20 #define _FLOAT128_IFUNC_REDIRECT_MACROS_PPC64LE 1
  21
  22 /* Define the redirection macros used throughout most of the IFUNC headers.
  23    The variant is inferred via compiler options.
  24
  25    F128_REDIR_PFX_R(function, destination_prefix, reentrant_suffix)
  26      Redirect function, optionally suffixed by reentrant_suffix, to a function
  27      named destination_prefix ## function ## variant ## reentrant_suffix.
  28
  29    F128_SFX_APPEND(sym)
  30      Append the the multiarch variant specific suffix to the sym. sym is not
  31      expanded.  This is sym ## variant.
  32
  33    F128_REDIR_R(func, reentrant_suffix)
  34      Redirect func to a function named function ## variant ## reentrant_suffix
  35
  36    F128_REDIR(function)
  37      Convience wrapper for F128_REDIR_R where function does not require
  38      a suffix argument.
  39
  40 */
  41 #ifndef _ARCH_PWR9
  42 #define F128_REDIR_PFX_R(func, pfx, r) \
  43   extern __typeof(func ## r) func ## r __asm( #pfx #func "_power8" #r );
  44 #define F128_SFX_APPEND(x) x ## _power8
  45 #else
  46 #define F128_REDIR_PFX_R(func, pfx, r) \
  47   extern __typeof(func ## r) func ## r __asm( #pfx #func "_power9" #r );
  48 #define F128_SFX_APPEND(x) x ## _power9
  49 #endif
  50 #define F128_REDIR_R(func, r) F128_REDIR_PFX_R (func, , r)
  51 #define F128_REDIR(func) F128_REDIR_R (func, )
  52
  53 #endif /*_FLOAT128_IFUNC_REDIRECT_MACROS_PPC64LE */