cpuimpl.h

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/* SPDX-License-Identifier: BSD-2-Clause */

 
/*
 * Copyright (C) 2013, 2016 embedded brains GmbH & Co. KG
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
 
#ifndef _RTEMS_SCORE_CPUIMPL_H
#define _RTEMS_SCORE_CPUIMPL_H
 
#include <rtems/score/cpu.h>


#define CPU_PER_CPU_CONTROL_SIZE 0

#define CPU_THREAD_LOCAL_STORAGE_VARIANT 10
 
#ifndef ASM
 
#ifdef __cplusplus
extern "C" {
#endif

typedef struct {
  /* CPU specific per-CPU state */
} CPU_Per_CPU_control;

register struct Per_CPU_Control *_CPU_Per_CPU_current asm( "rX" );

#define _CPU_Get_current_per_CPU_control() ( _CPU_Per_CPU_current )

#define _CPU_Get_thread_executing() ( _CPU_Per_CPU_current->executing )
 
/* end of Fatal Error manager macros */

void _CPU_Context_volatile_clobber( uintptr_t pattern );

void _CPU_Context_validate( uintptr_t pattern );

static inline void _CPU_Instruction_illegal( void )
{
  __asm__ volatile ( ".word 0" );
}

static inline void _CPU_Instruction_no_operation( void )
{
  __asm__ volatile ( "nop" );
}

static inline void _CPU_Use_thread_local_storage(
  const Context_Control *context
)
{
  (void) context;
}

static inline void *_CPU_Get_TLS_thread_pointer(
  const Context_Control *context
)
{
  (void) context;
  return NULL;
}
 
#ifdef __cplusplus
}
#endif
 
#endif /* ASM */

 
#endif /* _RTEMS_SCORE_CPUIMPL_H */