gcc/config/i386/usermsrintrin.h

   1 /* Copyright (C) 2022-2024 Free Software Foundation, Inc.
   2
   3    This file is part of GCC.
   4
   5    GCC is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3, or (at your option)
   8    any later version.
   9
  10    GCC 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
  13    GNU General Public License for more details.
  14
  15    Under Section 7 of GPL version 3, you are granted additional
  16    permissions described in the GCC Runtime Library Exception, version
  17    3.1, as published by the Free Software Foundation.
  18
  19    You should have received a copy of the GNU General Public License and
  20    a copy of the GCC Runtime Library Exception along with this program;
  21    see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  22    <http://www.gnu.org/licenses/>.  */
  23
  24 #if !defined _X86GPRINTRIN_H_INCLUDED
  25 #error "Never use <usermsrintrin.h> directly; include <x86gprintrin.h> instead."
  26 #endif
  27
  28 #ifndef _USER_MSRINTRIN_H_INCLUDED
  29 #define _USER_MSRINTRIN_H_INCLUDED
  30
  31 #ifdef __x86_64__
  32
  33 #ifndef __USER_MSR__
  34 #pragma GCC push_options
  35 #pragma GCC target("usermsr")
  36 #define __DISABLE_USER_MSR__
  37 #endif /* __USER_MSR__ */
  38
  39 extern __inline unsigned long long
  40 __attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
  41 _urdmsr (unsigned long long __A)
  42 {
  43   return (unsigned long long) __builtin_ia32_urdmsr (__A);
  44 }
  45
  46 extern __inline void
  47 __attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
  48 _uwrmsr (unsigned long long __A, unsigned long long __B)
  49 {
  50   __builtin_ia32_uwrmsr (__A, __B);
  51 }
  52
  53 #ifdef __DISABLE_USER_MSR__
  54 #undef __DISABLE_USER_MSR__
  55 #pragma GCC pop_options
  56 #endif /* __DISABLE_USER_MSR__ */
  57
  58 #endif /* __x86_64__ */
  59
  60 #endif /* _USER_MSRINTRIN_H_INCLUDED */