1  /* Linux/x86 CET initializers function.
       2     Copyright (C) 2018-2023 Free Software Foundation, Inc.
       3  
       4     The GNU C Library is free software; you can redistribute it and/or
       5     modify it under the terms of the GNU Lesser General Public
       6     License as published by the Free Software Foundation; either
       7     version 2.1 of the License, or (at your option) any later version.
       8  
       9     The GNU C Library is distributed in the hope that it will be useful,
      10     but WITHOUT ANY WARRANTY; without even the implied warranty of
      11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      12     Lesser General Public License for more details.
      13  
      14     You should have received a copy of the GNU Lesser General Public
      15     License along with the GNU C Library; if not, see
      16     <https://www.gnu.org/licenses/>.  */
      17  
      18  #include <sys/prctl.h>
      19  #include <asm/prctl.h>
      20  
      21  static inline int __attribute__ ((always_inline))
      22  dl_cet_disable_cet (unsigned int cet_feature)
      23  {
      24    return (int) INTERNAL_SYSCALL_CALL (arch_prctl, ARCH_CET_DISABLE,
      25  				      cet_feature);
      26  }
      27  
      28  static inline int __attribute__ ((always_inline))
      29  dl_cet_lock_cet (void)
      30  {
      31    return (int) INTERNAL_SYSCALL_CALL (arch_prctl, ARCH_CET_LOCK, 0);
      32  }