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/**
* @file
*
* @ingroup Score
*
* @brief Basic Definitions
*/
/*
* COPYRIGHT (c) 1989-2007.
* On-Line Applications Research Corporation (OAR).
*
* Copyright (c) 2010 embedded brains GmbH.
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*/
#ifndef _RTEMS_BASEDEFS_H
#define _RTEMS_BASEDEFS_H
/**
* @defgroup ScoreBaseDefs Basic Definitions
*
* @ingroup Score
*/
/**@{*/
#include <rtems/score/cpuopts.h>
#ifndef ASM
#include <stddef.h>
#include <stdbool.h>
#include <stdint.h>
/*
* FIXME: This include should not be present. In older RTEMS versions
* <rtems.h> provided <limits.h> indirectly. This include is here to not
* break application source files that relied on this accidentally.
*/
#include <limits.h>
/*
* FIXME: This include should not be present. In older RTEMS versions
* <rtems.h> provided <string.h> indirectly. This include is here to not
* break application source files that relied on this accidentally.
*/
#include <string.h>
#endif
#ifndef TRUE
/**
* This ensures that RTEMS has TRUE defined in all situations.
*/
#define TRUE 1
#endif
#ifndef FALSE
/**
* This ensures that RTEMS has FALSE defined in all situations.
*/
#define FALSE 0
#endif
#if TRUE == FALSE
#error "TRUE equals FALSE"
#endif
/**
* The following ensures that all data is declared in the space
* of the initialization routine for either the Initialization Manager
* or the initialization file for the appropriate API. It is
* referenced as "external" in every other file.
*/
#ifdef SCORE_INIT
#undef SCORE_EXTERN
#define SCORE_EXTERN
#else
#undef SCORE_EXTERN
#define SCORE_EXTERN extern
#endif
/**
* The following ensures that all data is declared in the space
* of the initialization routine for either the Initialization Manager
* or the initialization file for the appropriate API. It is
* referenced as "external" in every other file.
*/
#ifdef SAPI_INIT
#undef SAPI_EXTERN
#define SAPI_EXTERN
#else
#undef SAPI_EXTERN
#define SAPI_EXTERN extern
#endif
/**
* The following ensures that all data is declared in the space
* of the initialization routine for either the Initialization Manager
* or the initialization file for the appropriate API. It is
* referenced as "external" in every other file.
*/
#ifdef RTEMS_API_INIT
#undef RTEMS_EXTERN
#define RTEMS_EXTERN
#else
#undef RTEMS_EXTERN
#define RTEMS_EXTERN extern
#endif
/**
* The following ensures that all data is declared in the space
* of the initialization routine for either the Initialization Manager
* or the initialization file for the appropriate API. It is
* referenced as "external" in every other file.
*/
#ifdef POSIX_API_INIT
#undef POSIX_EXTERN
#define POSIX_EXTERN
#else
#undef POSIX_EXTERN
#define POSIX_EXTERN extern
#endif
/**
* The following (in conjunction with compiler arguments) are used
* to choose between the use of static inline functions and macro
* functions. The static inline implementation allows better
* type checking with no cost in code size or execution speed.
*/
#ifdef __GNUC__
#define RTEMS_INLINE_ROUTINE static __inline__
#else
#define RTEMS_INLINE_ROUTINE static inline
#endif
/**
* The following macro is a compiler specific way to ensure that memory
* writes are not reordered around certian points. This specifically can
* impact interrupt disable and thread dispatching critical sections.
*/
#ifdef __GNUC__
#define RTEMS_COMPILER_MEMORY_BARRIER() __asm__ volatile("" ::: "memory")
#else
#define RTEMS_COMPILER_MEMORY_BARRIER()
#endif
/**
* The following macro is a compiler specific way to indicate that
* the method will NOT return to the caller. This can assist the
* compiler in code generation and avoid unreachable paths. This
* can impact the code generated following calls to
* rtems_fatal_error_occurred and _Internal_error_Occurred.
*/
#ifdef __GNUC__
#define RTEMS_COMPILER_NO_RETURN_ATTRIBUTE \
__attribute__ ((noreturn))
#else
#define RTEMS_COMPILER_NO_RETURN_ATTRIBUTE
#endif
/**
* The following defines a compiler specific attribute which informs
* the compiler that the method has no effect except the return value
* and that the return value depends only on parameters and/or global
* variables.
*/
#ifdef __GNUC__
#define RTEMS_COMPILER_PURE_ATTRIBUTE \
__attribute__ ((pure))
#else
#define RTEMS_COMPILER_PURE_ATTRIBUTE
#endif
/**
* Instructs the compiler to issue a warning whenever a variable or function
* with this attribute will be used.
*/
#ifdef __GNUC__
#define RTEMS_COMPILER_DEPRECATED_ATTRIBUTE \
__attribute__ ((deprecated))
#else
#define RTEMS_COMPILER_DEPRECATED_ATTRIBUTE
#endif
#if __cplusplus >= 201103L
#define RTEMS_STATIC_ASSERT(cond, msg) \
static_assert(cond, # msg)
#elif __STDC_VERSION__ >= 201112L
#define RTEMS_STATIC_ASSERT(cond, msg) \
_Static_assert(cond, # msg)
#else
#define RTEMS_STATIC_ASSERT(cond, msg) \
typedef int rtems_static_assert_ ## msg [(cond) ? 1 : -1]
#endif
#define RTEMS_ARRAY_SIZE(array) (sizeof(array) / sizeof((array)[0]))
#ifndef ASM
#ifdef RTEMS_DEPRECATED_TYPES
typedef bool boolean;
typedef float single_precision;
typedef double double_precision;
#endif
/**
* XXX: Eventually proc_ptr needs to disappear!!!
*/
typedef void * proc_ptr;
#endif
/**@}*/
#endif /* _RTEMS_BASEDEFS_H */
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