/* Restartable Sequences internal API.  Linux implementation.
   Copyright (C) 2021 Free Software Foundation, Inc.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <https://www.gnu.org/licenses/>.  */

#ifndef RSEQ_INTERNAL_H
#define RSEQ_INTERNAL_H

#include <sysdep.h>
#include <errno.h>
#include <kernel-features.h>
#include <stdio.h>
#include <sys/rseq.h>

#ifdef RSEQ_SIG
static inline void
rseq_register_current_thread (struct pthread *self)
{
  int ret = INTERNAL_SYSCALL_CALL (rseq,
                                   &self->rseq_area, sizeof (self->rseq_area),
                                   0, RSEQ_SIG);
  if (INTERNAL_SYSCALL_ERROR_P (ret))
    THREAD_SETMEM (self, rseq_area.cpu_id, RSEQ_CPU_ID_REGISTRATION_FAILED);
}
#else /* RSEQ_SIG */
static inline void
rseq_register_current_thread (struct pthread *self)
{
  THREAD_SETMEM (self, rseq_area.cpu_id, RSEQ_CPU_ID_REGISTRATION_FAILED);
}
#endif /* RSEQ_SIG */

#endif /* rseq-internal.h */