On Mon, Nov 9, 2020 at 7:50 AM Sebastian Huber
<sebastian.hu...@embedded-brains.de> wrote:
>
> Change license to BSD-2-Clause according to file histories and
> documentation re-licensing agreement.
>
> Update #3899.
> Update #3993.
> ---
> cpukit/include/rtems/score/basedefs.h | 1052 +++++++++++++++++--------
> 1 file changed, 705 insertions(+), 347 deletions(-)
>
> diff --git a/cpukit/include/rtems/score/basedefs.h
> b/cpukit/include/rtems/score/basedefs.h
> index 0244af1471..4855df18eb 100644
> --- a/cpukit/include/rtems/score/basedefs.h
> +++ b/cpukit/include/rtems/score/basedefs.h
> @@ -1,601 +1,959 @@
> +/* SPDX-License-Identifier: BSD-2-Clause */
> +
> /**
> * @file
> *
> - * @ingroup RTEMSScore
> - *
> - * @brief Basic Definitions
> + * @brief This header file provides basic definitions used by the API and the
> + * implementation.
> */
>
> /*
> - * COPYRIGHT (c) 1989-2007.
> - * On-Line Applications Research Corporation (OAR).
> + * Copyright (C) 2014 Paval Pisa
> + * Copyright (C) 2011, 2013 On-Line Applications Research Corporation (OAR)
> + * Copyright (C) 2009, 2020 embedded brains GmbH
> (http://www.embedded-brains.de)
> *
> - * Copyright (C) 2010, 2019 embedded brains GmbH
> + * 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.
> *
> - * The license and distribution terms for this file may be
> - * found in the file LICENSE in this distribution or at
> - * http://www.rtems.org/license/LICENSE.
> + * 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_BASEDEFS_H
> -#define _RTEMS_BASEDEFS_H
> -
> -/**
> - * @defgroup RTEMSScoreBaseDefs Basic Definitions
> +/*
> + * Do not manually edit this file. It is part of the RTEMS quality process
> + * and was automatically generated.
> + *
> + * If you find something that needs to be fixed or worded better please
> + * post a report to an RTEMS mailing list or raise a bug report:
> *
> - * @ingroup RTEMSScore
> + * https://docs.rtems.org/branches/master/user/support/bugs.html
> *
> - * @{
> + * For information on updating and regenerating please refer to:
> + *
> + * https://docs.rtems.org/branches/master/eng/req/howto.html
> */
>
> +/* Generated from spec:/rtems/basedefs/if/header */
> +
> +#ifndef _RTEMS_SCORE_BASEDEFS_H
> +#define _RTEMS_SCORE_BASEDEFS_H
> +
> #include <rtems/score/cpuopts.h>
>
> -#ifndef ASM
> - #include <stddef.h>
> +#if !defined(ASM)
> #include <stdbool.h>
> + #include <stddef.h>
> #include <stdint.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
> +#ifdef __cplusplus
> +extern "C" {
> #endif
>
> -#if TRUE == FALSE
> - #error "TRUE equals FALSE"
> -#endif
> +/* Generated from spec:/if/api */
>
> /**
> - * 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.
> + * @defgroup RTEMSAPI API
> + *
> + * @brief API
> + *
> + * This group contains the RTEMS Application Programming Interface (API).
> */
> -#ifdef __GNUC__
> - #define RTEMS_INLINE_ROUTINE static __inline__
> -#else
> - #define RTEMS_INLINE_ROUTINE static inline
> -#endif
> +
> +/* Generated from spec:/rtems/basedefs/if/group */
>
> /**
> - * The following macro is a compiler specific way to ensure that memory
> - * writes are not reordered around certain points. This specifically can
> - * impact interrupt disable and thread dispatching critical sections.
> + * @defgroup RTEMSAPIBaseDefs Base Definitions
> + *
> + * @ingroup RTEMSAPI
> + *
> + * @brief This group contains basic macros and defines to give access to
> + * compiler-specific features.
> */
> -#ifdef __GNUC__
> - #define RTEMS_COMPILER_MEMORY_BARRIER() __asm__ volatile("" ::: "memory")
> -#else
> - #define RTEMS_COMPILER_MEMORY_BARRIER()
> -#endif
> +
> +/* Generated from spec:/rtems/basedefs/if/alias */
>
> /**
> - * The following defines a compiler specific attribute which informs
> - * the compiler that the method must not be inlined.
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief Instructs the compiler to generate an alias to the target function.
> + *
> + * @param _target is the target function name.
> */
> -#ifdef __GNUC__
> - #define RTEMS_NO_INLINE __attribute__((__noinline__))
> +#if defined(__GNUC__)
> + #define RTEMS_ALIAS( _target ) __attribute__((__alias__(#_target)))
> #else
> - #define RTEMS_NO_INLINE
> + #define RTEMS_ALIAS( _target )
> #endif
>
> +/* Generated from spec:/rtems/basedefs/if/align-down */
> +
> /**
> - * 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 _Terminate.
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief Aligns down the value to the alignment.
> + *
> + * @param _value is the value to align down.
> + *
> + * @param _alignment is the desired alignment in bytes. The alignment shall
> be
> + * a power of two, otherwise the returned value is undefined. The
> alignment
> + * parameter is evaluated twice.
> + *
> + * @return Returns the value aligned down to the alignment.
> */
> -#if __cplusplus >= 201103L
> - #define RTEMS_NO_RETURN [[noreturn]]
> -#elif __STDC_VERSION__ >= 201112L
> - #define RTEMS_NO_RETURN _Noreturn
> -#elif defined(__GNUC__)
> - #define RTEMS_NO_RETURN __attribute__((__noreturn__))
> -#else
> - #define RTEMS_NO_RETURN
> -#endif
> +#define RTEMS_ALIGN_DOWN( _value, _alignment ) \
> + ( ( _value ) & ~( ( _alignment ) - 1 ) )
>
> -/* Provided for backward compatibility */
> -#define RTEMS_COMPILER_NO_RETURN_ATTRIBUTE RTEMS_NO_RETURN
> +/* Generated from spec:/rtems/basedefs/if/align-up */
>
> /**
> - * 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 the value of parameters.
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief Aligns up the value to the alignment.
> + *
> + * @param _value is the value to align up.
> + *
> + * @param _alignment is the desired alignment in bytes. The alignment shall
> be
> + * a power of two, otherwise the returned value is undefined. The
> alignment
> + * parameter is evaluated twice.
> + *
> + * @return Returns the value aligned up to the alignment.
> */
> -#ifdef __GNUC__
> - #define RTEMS_CONST __attribute__((__const__))
> -#else
> - #define RTEMS_CONST
> -#endif
> +#define RTEMS_ALIGN_UP( _value, _alignment ) \
> + ( ( ( _value ) + ( _alignment ) - 1 ) & ~( ( _alignment ) - 1 ) )
> +
> +/* Generated from spec:/rtems/basedefs/if/aligned */
>
> /**
> - * 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.
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief Instructs the compiler in a declaration or definition to enforce
> the
> + * alignment.
> + *
> + * @param _alignment is the desired alignment in bytes.
> */
> -#ifdef __GNUC__
> - #define RTEMS_PURE __attribute__((__pure__))
> +#if defined(__GNUC__)
> + #define RTEMS_ALIGNED( _alignment )
> __attribute__((__aligned__(_alignment)))
> #else
> - #define RTEMS_PURE
> + #define RTEMS_ALIGNED( _alignment )
> #endif
>
> -/* Provided for backward compatibility */
> -#define RTEMS_COMPILER_PURE_ATTRIBUTE RTEMS_PURE
> +/* Generated from spec:/rtems/basedefs/if/alloc-align */
>
> /**
> - * Instructs the compiler to issue a warning whenever a variable or function
> - * with this attribute will be used.
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief Tells the compiler in a declaration that the memory allocation
> + * alignment parameter of this function is similar to aligned_alloc().
> + *
> + * @param _index is the allocation alignment parameter index (starting with
> + * one).
> */
> -#ifdef __GNUC__
> - #define RTEMS_DEPRECATED __attribute__((__deprecated__))
> +#if defined(__GNUC__)
> + #define RTEMS_ALLOC_ALIGN( _index )
> __attribute__((__alloc_align__(_index)))
> #else
> - #define RTEMS_DEPRECATED
> + #define RTEMS_ALLOC_ALIGN( _index )
> #endif
>
> -/* Provided for backward compatibility */
> -#define RTEMS_COMPILER_DEPRECATED_ATTRIBUTE RTEMS_DEPRECATED
> +/* Generated from spec:/rtems/basedefs/if/alloc-size */
>
> /**
> - * @brief Instructs the compiler to place a specific variable or function in
> - * the specified section.
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief Tells the compiler in a declaration that the memory allocation size
> + * parameter of this function is similar to malloc().
> + *
> + * @param _index is the allocation size parameter index (starting with one).
> */
> #if defined(__GNUC__)
> - #define RTEMS_SECTION( _section ) __attribute__((__section__(_section)))
> + #define RTEMS_ALLOC_SIZE( _index ) __attribute__((__alloc_size__(_index)))
> #else
> - #define RTEMS_SECTION( _section )
> + #define RTEMS_ALLOC_SIZE( _index )
> #endif
>
> +/* Generated from spec:/rtems/basedefs/if/alloc-size-2 */
> +
> /**
> - * @brief Instructs the compiler that a specific variable or function is
> used.
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief Tells the compiler in a declaration that the memory allocation item
> + * count and item size parameter of this function is similar to calloc().
> + *
> + * @param _count_index is the allocation item count parameter index (starting
> + * with one).
> + *
> + * @param _size_index is the allocation item size parameter index (starting
> + * with one).
> */
> #if defined(__GNUC__)
> - #define RTEMS_USED __attribute__((__used__))
> + #define RTEMS_ALLOC_SIZE_2( _count_index, _size_index ) \
> + __attribute__((__alloc_size__(_count_index, _size_index)))
> #else
> - #define RTEMS_USED
> + #define RTEMS_ALLOC_SIZE_2( _count_index, _size_index )
> #endif
>
> +/* Generated from spec:/rtems/basedefs/if/array-size */
> +
> /**
> - * Instructs the compiler that a specific variable is deliberately unused.
> - * This can occur when reading volatile device memory or skipping arguments
> - * in a variable argument method.
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief Gets the element count of the array.
> + *
> + * @param _array is the name of the array. This parameter is evaluated
> twice.
> + *
> + * @return Returns the element count of the array.
> */
> -#if defined(__GNUC__)
> - #define RTEMS_UNUSED __attribute__((__unused__))
> -#else
> - #define RTEMS_UNUSED
> -#endif
> +#define RTEMS_ARRAY_SIZE( _array ) \
> + ( sizeof( _array ) / sizeof( ( _array )[ 0 ] ) )
>
> -/* Provided for backward compatibility */
> -#define RTEMS_COMPILER_UNUSED_ATTRIBUTE RTEMS_UNUSED
> +/* Generated from spec:/rtems/basedefs/if/compiler-memory-barrier */
>
> /**
> - * Instructs the compiler that a specific structure or union members will be
> - * placed so that the least memory is used.
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief This macro forbids the compiler to reorder read and write commands
> + * around it.
> */
> #if defined(__GNUC__)
> - #define RTEMS_PACKED __attribute__((__packed__))
> + #define RTEMS_COMPILER_MEMORY_BARRIER() __asm__ volatile( "" ::: "memory" )
> #else
> - #define RTEMS_PACKED
> + #define RTEMS_COMPILER_MEMORY_BARRIER() do { } while ( 0 )
> #endif
>
> +/* Generated from spec:/rtems/basedefs/if/concat */
> +
> /**
> - * @brief Instructs the compiler to generate an alias to the specified target
> - * function.
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief Concatenates _x and _y without expanding.
> + *
> + * @param _x is the left hand side token of the concatenation.
> + *
> + * @param _y is the right hand side token of the concatenation.
> + *
> + * @return Returns the concatenation of the tokens _x and _y.
> */
> -#if defined(__GNUC__)
> - #define RTEMS_ALIAS( _target ) __attribute__((__alias__(#_target)))
> -#else
> - #define RTEMS_ALIAS( _target )
> -#endif
> +#define RTEMS_CONCAT( _x, _y ) _x##_y
> +
> +/* Generated from spec:/rtems/basedefs/if/const */
>
> /**
> - * @brief Instructs the compiler to define a weak function.
> + * @ingroup RTEMSAPIBaseDefs
> *
> - * Use this attribute for function definitions. Do not use it for function
> - * declarations.
> + * @brief Tells the compiler in a function declaration that this function has
> + * no effect except the return value and that the return value depends only
> + * on the value of parameters.
> */
> #if defined(__GNUC__)
> - #define RTEMS_WEAK __attribute__((__weak__))
> + #define RTEMS_CONST __attribute__((__const__))
> #else
> - #define RTEMS_WEAK
> + #define RTEMS_CONST
> #endif
>
> +/* Generated from spec:/rtems/basedefs/if/container-of */
> +
> +/**
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief Gets the container of a member.
> + *
> + * @param _m is the pointer to a member of the container.
> + *
> + * @param _type is the type of the container.
> + *
> + * @param _member_name is the designator name of the container member.
> + *
> + * @return Returns the pointer to the container of a member pointer.
> + */
> +#define RTEMS_CONTAINER_OF( _m, _type, _member_name ) \
> + ( (_type *) ( (uintptr_t) ( _m ) - offsetof( _type, _member_name ) ) )
> +
> +/* Generated from spec:/rtems/basedefs/if/declare-global-symbol */
> +
> +/**
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief Declares a global symbol with the name.
> + *
> + * This macro must be placed at file scope.
> + *
> + * @param _name is the name of the global symbol. It shall be a valid
> + * designator.
> + */
> +#define RTEMS_DECLARE_GLOBAL_SYMBOL( _name ) extern char _name[]
> +
> +/* Generated from spec:/rtems/basedefs/if/deprecated */
> +
> /**
> - * @brief Instructs the compiler to generate a weak alias to the specified
> - * target function.
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief Instructs the compiler in a declaration to issue a warning
> whenever a
> + * variable, function, or type using this declaration will be used.
> */
> #if defined(__GNUC__)
> - #define RTEMS_WEAK_ALIAS( _target ) __attribute__((__weak__,
> __alias__(#_target)))
> + #define RTEMS_DEPRECATED __attribute__((__deprecated__))
> #else
> - #define RTEMS_WEAK_ALIAS( _target )
> + #define RTEMS_DEPRECATED
> #endif
>
> +/* Generated from spec:/rtems/basedefs/if/compiler-deprecated-attribute */
> +
> /**
> - * @brief Returns the specified value aligned down to the specified
> alignment.
> + * @ingroup RTEMSAPIBaseDefs
> *
> - * @param _value is the value to align down.
> + * @brief Provided for backward compatibility.
> + */
> +#define RTEMS_COMPILER_DEPRECATED_ATTRIBUTE RTEMS_DEPRECATED
> +
> +/* Generated from spec:/rtems/basedefs/if/expand */
> +
> +/**
> + * @ingroup RTEMSAPIBaseDefs
> *
> - * @param _alignment is the desired alignment in bytes. The alignment shall
> be
> - * a power of two, otherwise the returned value is undefined. The
> alignment
> - * parameter is evaluated twice.
> + * @brief Helper macro to perform a macro expansion on the token.
> *
> - * @return The specified value aligned down to the specified alignment is
> - * returned.
> + * @param _token is the token to expand.
> */
> -#define RTEMS_ALIGN_DOWN( _value, _alignment ) \
> - ( ( _value ) & ~( ( _alignment ) - 1 ) )
> +#define RTEMS_EXPAND( _token ) _token
> +
> +/* Generated from spec:/rtems/basedefs/if/string */
>
> /**
> - * @brief Returns the specified value aligned up to the specified alignment.
> + * @ingroup RTEMSAPIBaseDefs
> *
> - * @param _value is the value to align up.
> + * @brief Stringifies _x without expanding.
> *
> - * @param _alignment is the desired alignment in bytes. The alignment shall
> be
> - * a power of two, otherwise the returned value is undefined. The
> alignment
> - * parameter is evaluated twice.
> + * @param _x is the token to stringify.
> *
> - * @return The specified value aligned up to the specified alignment is
> - * returned.
> + * @return Returns the stringification of the token _x.
> */
> -#define RTEMS_ALIGN_UP( _value, _alignment ) \
> - ( ( ( _value ) + ( _alignment ) - 1 ) & ~( ( _alignment ) - 1 ) )
> +#define RTEMS_STRING( _x ) #_x
> +
> +/* Generated from spec:/rtems/basedefs/if/typeof-refx */
>
> /**
> - * @brief Instructs the compiler to enforce the specified alignment.
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief Gets the pointer reference type.
> + *
> + * The reference type idea is based on libHX by Jan Engelhardt.
> + *
> + * @param _level is the pointer indirection level expressed in *.
> + *
> + * @param _target is the reference target type.
> + *
> + * @return Returns the type of a pointer reference of the specified level to
> + * the specified type.
> */
> #if defined(__GNUC__)
> - #define RTEMS_ALIGNED( _alignment )
> __attribute__((__aligned__(_alignment)))
> + #define RTEMS_TYPEOF_REFX( _level, _target ) \
> + __typeof__( _level( union { int z; __typeof__( _target ) x; } ){ 0 }.x )
> #else
> - #define RTEMS_ALIGNED( _alignment )
> + #define RTEMS_TYPEOF_REFX( _level, _target )
> #endif
>
> -/* Provided for backward compatibility */
> -#define RTEMS_COMPILER_PACKED_ATTRIBUTE RTEMS_PACKED
> +/* Generated from spec:/rtems/basedefs/if/xconcat */
> +
> +/**
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief Concatenates expansion of _x and expansion of _y.
> + *
> + * @param _x is expanded first and then used as the left hand side token of
> the
> + * concatenation.
> + *
> + * @param _y is expanded first and then used as the right hand side token of
> + * the concatenation.
> + *
> + * @return Returns the concatenation of the expansions of tokens _x and _y.
> + */
> +#define RTEMS_XCONCAT( _x, _y ) RTEMS_CONCAT( _x, _y )
> +
> +/* Generated from spec:/score/if/assert-unreachable */
>
> -#if defined(RTEMS_DEBUG) && !defined(RTEMS_SCHEDSIM)
> +/**
> + * @brief Asserts that this program point is unreachable.
> + */
> +#if defined(RTEMS_DEBUG)
> #define _Assert_Unreachable() _Assert( 0 )
> #else
> #define _Assert_Unreachable() do { } while ( 0 )
> #endif
>
> +#if !defined(ASM)
> + /* Generated from spec:/score/if/dequalify-types-not-compatible */
> +
> + /**
> + * @brief A not implemented function to trigger compile time errors with an
> + * error message.
> + */
> + #if defined(__GNUC__)
> + __attribute__((__error__("RTEMS_DEQUALIFY() types differ not only by
> volatile and const"))) void *
> + RTEMS_DEQUALIFY_types_not_compatible( void );
> + #else
> + void *RTEMS_DEQUALIFY_types_not_compatible( void );
> + #endif
> +#endif
> +
> +/* Generated from spec:/rtems/basedefs/if/dequalify-depthx */
> +
> /**
> - * @brief Tells the compiler that this program point is unreachable.
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief Performs a type cast which removes qualifiers without warnings to
> the
> + * type for the variable.
> + *
> + * @param _ptr_level is the pointer indirection level expressed in *.
> + *
> + * @param _type is the target type of the cast.
> + *
> + * @param _var is the variable.
> */
> -#if defined(__GNUC__) && !defined(RTEMS_SCHEDSIM)
> - #define RTEMS_UNREACHABLE() \
> - do { \
> - __builtin_unreachable(); \
> - _Assert_Unreachable(); \
> - } while ( 0 )
> +#if defined(__cplusplus)
> + #define RTEMS_DEQUALIFY_DEPTHX( _ptr_level, _type, _var ) \
> + (const_cast<_type>(_var))
> +#elif defined(__GNUC__)
> + #define RTEMS_DEQUALIFY_DEPTHX( _ptr_level, _type, _var ) \
> + __builtin_choose_expr(__builtin_types_compatible_p( \
> + RTEMS_TYPEOF_REFX(_ptr_level, _var), \
> + RTEMS_TYPEOF_REFX(_ptr_level, _type) \
> + ) || __builtin_types_compatible_p(_type, void *), \
> + (_type)(_var), \
> + RTEMS_DEQUALIFY_types_not_compatible())
> #else
> - #define RTEMS_UNREACHABLE() _Assert_Unreachable()
> + #define RTEMS_DEQUALIFY_DEPTHX( _ptr_level, _type, _var ) \
> + ((_type)(uintptr_t)(const volatile void *)(_var))
> #endif
>
> +/* Generated from spec:/rtems/basedefs/if/deconst */
> +
> /**
> - * @brief Tells the compiler that this function expects printf()-like
> - * arguments.
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief Performs a type cast which removes const qualifiers without
> warnings
> + * to the type for the pointer variable.
> + *
> + * @param _type is the target type of the cast.
> + *
> + * @param _var is the pointer variable.
> */
> -#if defined(__GNUC__)
> - #define RTEMS_PRINTFLIKE( _format_pos, _ap_pos ) \
> - __attribute__((__format__(__printf__, _format_pos, _ap_pos)))
> -#else
> - #define RTEMS_PRINTFLIKE( _format_pos, _ap_pos )
> +#define RTEMS_DECONST( _type, _var ) RTEMS_DEQUALIFY_DEPTHX(*, _type, _var)
> +
> +/* Generated from spec:/rtems/basedefs/if/dequalify */
> +
> +/**
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief Performs a type cast which removes all qualifiers without warnings
> to
> + * the type for the pointer variable.
> + *
> + * @param _type is the target type of the cast.
> + *
> + * @param _var is the pointer variable.
> + */
> +#define RTEMS_DEQUALIFY( _type, _var ) RTEMS_DEQUALIFY_DEPTHX(*, _type, _var)
> +
> +/* Generated from spec:/rtems/basedefs/if/devolatile */
> +
> +/**
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief Performs a type cast which removes volatile qualifiers without
> + * warnings to the type for the pointer variable.
> + *
> + * @param _type is the target type of the cast.
> + *
> + * @param _var is the pointer variable.
> + */
> +#define RTEMS_DEVOLATILE( _type, _var ) RTEMS_DEQUALIFY_DEPTHX(*, _type,
> _var)
> +
> +#if !defined(FALSE)
> + /* Generated from spec:/rtems/basedefs/if/false */
> +
> + /**
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief If FALSE is undefined, then FALSE is defined to 0.
> + */
> + #define FALSE 0
> #endif
>
> +/* Generated from spec:/rtems/basedefs/if/have-member-same-type */
> +
> /**
> - * @brief Tells the compiler that this function is a memory allocation
> function
> - * similar to malloc().
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief Checks if members of two types have compatible types.
> + *
> + * @param _t_lhs is the left hand side type.
> + *
> + * @param _m_lhs is the left hand side member.
> + *
> + * @param _t_rhs is the right hand side type.
> + *
> + * @param _m_rhs is the right hand side member.
> + *
> + * @return Returns to true, if the members of two types have compatible
> types,
> + * otherwise false.
> */
> #if defined(__GNUC__)
> - #define RTEMS_MALLOCLIKE __attribute__((__malloc__))
> + #define RTEMS_HAVE_MEMBER_SAME_TYPE( _t_lhs, _m_lhs, _t_rhs, _m_rhs ) \
> + __builtin_types_compatible_p( \
> + __typeof__( ( (_t_lhs *) 0 )->_m_lhs ), \
> + __typeof__( ( (_t_rhs *) 0 )->_m_rhs ) \
> + )
> #else
> - #define RTEMS_MALLOCLIKE
> + #define RTEMS_HAVE_MEMBER_SAME_TYPE( _t_lhs, _m_lhs, _t_rhs, _m_rhs ) true
> #endif
>
> +/* Generated from spec:/rtems/basedefs/if/inline-routine */
> +
> /**
> - * @brief Tells the compiler the memory allocation size parameter of this
> - * function similar to malloc().
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief Gives a hint to the compiler in a function declaration to inline
> this
> + * function.
> */
> #if defined(__GNUC__)
> - #define RTEMS_ALLOC_SIZE( _index ) __attribute__((__alloc_size__(_index)))
> + #define RTEMS_INLINE_ROUTINE static __inline__
> #else
> - #define RTEMS_ALLOC_SIZE( _index )
> + #define RTEMS_INLINE_ROUTINE static inline
> #endif
>
> +/* Generated from spec:/rtems/basedefs/if/malloclike */
> +
> /**
> - * @brief Tells the compiler the memory allocation item count and item size
> - * parameter of this function similar to calloc().
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief Tells the compiler in a declaration that this function is a memory
> + * allocation function similar to malloc().
> */
> #if defined(__GNUC__)
> - #define RTEMS_ALLOC_SIZE_2( _count_index, _size_index ) \
> - __attribute__((__alloc_size__(_count_index, _size_index)))
> + #define RTEMS_MALLOCLIKE __attribute__((__malloc__))
> #else
> - #define RTEMS_ALLOC_SIZE_2( _count_index, _size_index )
> + #define RTEMS_MALLOCLIKE
> #endif
>
> +/* Generated from spec:/rtems/basedefs/if/no-inline */
> +
> /**
> - * @brief Tells the compiler the memory allocation alignment parameter of
> this
> - * function similar to aligned_alloc().
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief Instructs the compiler in a function declaration to not inline this
> + * function.
> */
> #if defined(__GNUC__)
> - #define RTEMS_ALLOC_ALIGN( _index )
> __attribute__((__alloc_align__(_index)))
> + #define RTEMS_NO_INLINE __attribute__((__noinline__))
> #else
> - #define RTEMS_ALLOC_ALIGN( _index )
> + #define RTEMS_NO_INLINE
> #endif
>
> +/* Generated from spec:/rtems/basedefs/if/no-return */
> +
> /**
> - * @brief Tells the compiler that the result of this function should be used.
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief Tells the compiler in a function declaration that this function
> does
> + * not return.
> */
> -#if defined(__GNUC__)
> - #define RTEMS_WARN_UNUSED_RESULT __attribute__((__warn_unused_result__))
> +#if __cplusplus >= 201103L
> + #define RTEMS_NO_RETURN [[noreturn]]
> +#elif __STDC_VERSION__ >= 201112L
> + #define RTEMS_NO_RETURN _Noreturn
> +#elif defined(__GNUC__)
> + #define RTEMS_NO_RETURN __attribute__((__noreturn__))
> #else
> - #define RTEMS_WARN_UNUSED_RESULT
> + #define RTEMS_NO_RETURN
> #endif
>
> +/* Generated from spec:/rtems/basedefs/if/compiler-no-return-attribute */
> +
> /**
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief Provided for backward compatibility.
> + */
> +#define RTEMS_COMPILER_NO_RETURN_ATTRIBUTE RTEMS_NO_RETURN
> +
> +/* Generated from spec:/rtems/basedefs/if/obfuscate-variable */
> +
> +/**
> + * @ingroup RTEMSAPIBaseDefs
> + *
> * @brief Obfuscates the variable so that the compiler cannot perform
> - * optimizations based on the variable value.
> + * optimizations based on the variable value.
> *
> * The variable must be simple enough to fit into a register.
> + *
> + * @param _var is the variable to obfuscate.
> */
> #if defined(__GNUC__)
> - #define RTEMS_OBFUSCATE_VARIABLE( _var ) __asm__("" : "+r" (_var))
> + #define RTEMS_OBFUSCATE_VARIABLE( _var ) __asm__( "" : "+r" ( _var ) )
> #else
> #define RTEMS_OBFUSCATE_VARIABLE( _var ) (void) (_var)
> #endif
>
> +/* Generated from spec:/rtems/basedefs/if/packed */
> +
> /**
> - * @brief Declares a global symbol with the specified name.
> - *
> - * This macro must be placed at file scope.
> + * @ingroup RTEMSAPIBaseDefs
> *
> - * The name must be a valid designator.
> + * @brief Instructs the compiler in a type definition to place members of a
> + * structure or union so that the memory required is minimized.
> */
> -#define RTEMS_DECLARE_GLOBAL_SYMBOL( _name ) \
> - extern char _name[]
> +#if defined(__GNUC__)
> + #define RTEMS_PACKED __attribute__((__packed__))
> +#else
> + #define RTEMS_PACKED
> +#endif
> +
> +/* Generated from spec:/rtems/basedefs/if/compiler-packed-attribute */
>
> /**
> - * @brief Constructs a symbol name.
> + * @ingroup RTEMSAPIBaseDefs
> *
> - * @param _name The user defined name of the symbol. The name shall be a
> valid
> - * designator. On the name a macro expansion is performed.
> + * @brief Provided for backward compatibility.
> */
> -#if defined(__USER_LABEL_PREFIX__)
> - #define RTEMS_SYMBOL_NAME( _name ) \
> - RTEMS_XCONCAT( __USER_LABEL_PREFIX__, _name )
> -#else
> - /* Helper to perform the macro expansion */
> - #define _RTEMS_SYMBOL_NAME( _name ) _name
> +#define RTEMS_COMPILER_PACKED_ATTRIBUTE RTEMS_PACKED
>
> - #define RTEMS_SYMBOL_NAME( _name ) _RTEMS_SYMBOL_NAME( _name )
> -#endif
> +/* Generated from spec:/rtems/basedefs/if/predict-false */
>
> /**
> - * @brief Defines a global symbol with the specified name and value.
> + * @ingroup RTEMSAPIBaseDefs
> *
> - * This macro shall be placed at file scope.
> + * @brief Evaluates the integral expression and tells the compiler that the
> + * predicted value is false (0).
> *
> - * @param _name The user defined name of the symbol. The name shall be a
> valid
> - * designator. On the name a macro expansion is performed and afterwards
> it
> - * is stringified.
> - * @param _value The value of the symbol. On the value a macro expansion is
> - * performed and afterwards it is stringified. It shall expand to an
> integer
> - * expression understood by the assembler.
> + * @param _exp is the integral expression.
> + *
> + * @return Returns the value of the integral expression and tells the
> compiler
> + * that the predicted value is false (0).
> */
> #if defined(__GNUC__)
> - #define RTEMS_DEFINE_GLOBAL_SYMBOL( _name, _value ) \
> - __asm__( \
> - "\t.globl " RTEMS_XSTRING( RTEMS_SYMBOL_NAME( _name ) ) \
> - "\n\t.set " RTEMS_XSTRING( RTEMS_SYMBOL_NAME( _name ) ) \
> - ", " RTEMS_STRING( _value ) "\n" \
> - )
> + #define RTEMS_PREDICT_FALSE( _exp ) __builtin_expect( ( _exp ), 0 )
> #else
> - #define RTEMS_DEFINE_GLOBAL_SYMBOL( _name, _value )
> + #define RTEMS_PREDICT_FALSE( _exp ) ( _exp )
> #endif
>
> +/* Generated from spec:/rtems/basedefs/if/predict-true */
> +
> /**
> - * @brief Returns the value of the specified integral expression and tells
> the
> - * compiler that the predicted value is true (1).
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief Evaluates the integral expression and tells the compiler that the
> + * predicted value is true (1).
> *
> - * @param[in] _exp The expression.
> + * @param _exp is the integral expression.
> *
> - * @return The value of the expression.
> + * @return Returns the value of the integral expression and tells the
> compiler
> + * that the predicted value is true (1).
> */
> #if defined(__GNUC__)
> - #define RTEMS_PREDICT_TRUE( _exp ) __builtin_expect( ( _exp ), 1 )
> + #define RTEMS_PREDICT_TRUE( _exp ) __builtin_expect( ( _exp ), 0 )
This looks like a typo, it should be 1 not 0?
> #else
> #define RTEMS_PREDICT_TRUE( _exp ) ( _exp )
> #endif
>
> +/* Generated from spec:/rtems/basedefs/if/printflike */
> +
> /**
> - * @brief Returns the value of the specified integral expression and tells
> the
> - * compiler that the predicted value is false (0).
> + * @ingroup RTEMSAPIBaseDefs
> *
> - * @param[in] _exp The expression.
> + * @brief Tells the compiler in a declaration that this function expects
> + * printf()-like arguments.
> *
> - * @return The value of the expression.
> + * @param _format_pos is the position of the format parameter index (starting
> + * with one).
> + *
> + * @param _ap_pos is the position of the argument pointer parameter index
> + * (starting with one).
> */
> #if defined(__GNUC__)
> - #define RTEMS_PREDICT_FALSE( _exp ) __builtin_expect( ( _exp ), 0 )
> + #define RTEMS_PRINTFLIKE( _format_pos, _ap_pos ) \
> + __attribute__((__format__(__printf__, _format_pos, _ap_pos)))
> #else
> - #define RTEMS_PREDICT_FALSE( _exp ) ( _exp )
> + #define RTEMS_PRINTFLIKE( _format_pos, _ap_pos )
> +#endif
> +
> +/* Generated from spec:/rtems/basedefs/if/pure */
> +
> +/**
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief Tells the compiler in a function declaration that this function has
> + * no effect except the return value and that the return value depends only
> + * on the value of parameters and/or global variables.
> + */
> +#if defined(__GNUC__)
> + #define RTEMS_PURE __attribute__((__pure__))
> +#else
> + #define RTEMS_PURE
> #endif
>
> +/* Generated from spec:/rtems/basedefs/if/compiler-pure-attribute */
> +
> /**
> - * @brief Returns the return address of the current function.
> + * @ingroup RTEMSAPIBaseDefs
> *
> - * @return The return address.
> + * @brief Provided for backward compatibility.
> + */
> +#define RTEMS_COMPILER_PURE_ATTRIBUTE RTEMS_PURE
> +
> +/* Generated from spec:/rtems/basedefs/if/return-address */
> +
> +/**
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief Gets the return address of the current function.
> + *
> + * @return Returns the return address of the current function.
> */
> #if defined(__GNUC__)
> - #define RTEMS_RETURN_ADDRESS() __builtin_return_address( 0 )
> + #define RTEMS_RETURN_ADDRESS() __builtin_return_address(0)
> #else
> #define RTEMS_RETURN_ADDRESS() NULL
> #endif
>
> +/* Generated from spec:/rtems/basedefs/if/section */
> +
> +/**
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief Instructs the compiler to place the variable or function in the
> + * section.
> + *
> + * @param _section is the section name as a string.
> + */
> +#if defined(__GNUC__)
> + #define RTEMS_SECTION( _section ) __attribute__((__section__(_section)))
> +#else
> + #define RTEMS_SECTION( _section )
> +#endif
> +
> +/* Generated from spec:/rtems/basedefs/if/static-assert */
> +
> +/**
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief Asserts at compile time that the condition is satisfied.
> + *
> + * @param _cond is the condition this static assertion shall satisfy.
> + *
> + * @param _msg is the error message in case the static assertion fails.
> + */
> #if __cplusplus >= 201103L
> - #define RTEMS_STATIC_ASSERT(cond, msg) \
> - static_assert(cond, # msg)
> + #define RTEMS_STATIC_ASSERT( _cond, _msg ) static_assert(_cond, # _msg)
> #elif __STDC_VERSION__ >= 201112L
> - #define RTEMS_STATIC_ASSERT(cond, msg) \
> - _Static_assert(cond, # msg)
> + #define RTEMS_STATIC_ASSERT( _cond, _msg ) _Static_assert(_cond, # _msg)
> #else
> - #define RTEMS_STATIC_ASSERT(cond, msg) \
> - struct rtems_static_assert_ ## msg \
> - { int rtems_static_assert_ ## msg : (cond) ? 1 : -1; }
> + #define RTEMS_STATIC_ASSERT( _cond, _msg ) \
> + struct rtems_static_assert_ ## _msg \
> + { int rtems_static_assert_ ## _msg : (_cond) ? 1 : -1; }
> #endif
>
> -#define RTEMS_ARRAY_SIZE(array) (sizeof(array) / sizeof((array)[0]))
> +/* Generated from spec:/rtems/basedefs/if/symbol-name */
>
> -/*
> - * Zero-length arrays are valid in C99 as flexible array members. C++11
> - * doesn't allow flexible array members. Use the GNU extension which is also
> - * supported by other compilers.
> +/**
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief Maps the name to the associated symbol name.
> + *
> + * @param _name is the user defined name of the symbol. The name shall be a
> + * valid designator. On the name a macro expansion is performed.
> + *
> + * @return Returns the symbol name associated with the name.
> */
> -#if __STDC_VERSION__ >= 199409L
> - #define RTEMS_ZERO_LENGTH_ARRAY
> +#if defined(__USER_LABEL_PREFIX__)
> + #define RTEMS_SYMBOL_NAME( _name ) RTEMS_XCONCAT(__USER_LABEL_PREFIX__,
> _name)
> #else
> - #define RTEMS_ZERO_LENGTH_ARRAY 0
> + #define RTEMS_SYMBOL_NAME( _name ) RTEMS_EXPAND(_name)
> +#endif
> +
> +#if !defined(TRUE)
> + /* Generated from spec:/rtems/basedefs/if/true */
> +
> + /**
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief If TRUE is undefined, then TRUE is defined to 1.
> + */
> + #define TRUE 1
> +#endif
> +
> +/* Generated from spec:/rtems/basedefs/if/unreachable */
> +
> +/**
> + * @brief Tells the compiler that this program point is unreachable.
> + */
> +#if defined(__GNUC__)
> + #define RTEMS_UNREACHABLE() \
> + do { \
> + __builtin_unreachable(); \
> + _Assert_Unreachable(); \
> + } while ( 0 )
> +#else
> + #define RTEMS_UNREACHABLE() _Assert_Unreachable()
> #endif
>
> +/* Generated from spec:/rtems/basedefs/if/unused */
> +
> /**
> - * @brief Returns a pointer to the container of a specified member pointer.
> + * @ingroup RTEMSAPIBaseDefs
> *
> - * @param[in] _m The pointer to a member of the container.
> - * @param[in] _type The type of the container.
> - * @param[in] _member_name The designator name of the container member.
> + * @brief Tells the compiler that the variable or function is deliberately
> + * unused.
> */
> -#define RTEMS_CONTAINER_OF( _m, _type, _member_name ) \
> - ( (_type *) ( (uintptr_t) ( _m ) - offsetof( _type, _member_name ) ) )
> +#if defined(__GNUC__)
> + #define RTEMS_UNUSED __attribute__((__unused__))
> +#else
> + #define RTEMS_UNUSED
> +#endif
>
> -#ifdef __cplusplus
> -#define RTEMS_DEQUALIFY_DEPTHX( _ptr_level, _type, _var ) \
> - (const_cast<_type>( _var ))
> -#else /* Standard C code */
> -
> -/* The reference type idea based on libHX by Jan Engelhardt */
> -#define RTEMS_TYPEOF_REFX(_ptr_level, _ptr_type) \
> - __typeof__(_ptr_level(union { int z; __typeof__(_ptr_type) x; }){0}.x)
> -
> -#if defined(__GNUC__) && !defined(ASM)
> -#if ((__GNUC__ * 1000 + __GNUC_MINOR__) >= 4004)
> -extern void* RTEMS_DEQUALIFY_types_not_compatible(void)
> - __attribute__((error ("RTEMS_DEQUALIFY types differ not only by volatile
> and const")));
> -#else
> -extern void RTEMS_DEQUALIFY_types_not_compatible(void);
> -#endif
> -#define RTEMS_DEQUALIFY_DEPTHX( _ptr_level, _type, _var ) ( \
> - __builtin_choose_expr( __builtin_types_compatible_p ( \
> - RTEMS_TYPEOF_REFX( _ptr_level, _var ), \
> - RTEMS_TYPEOF_REFX( _ptr_level, _type ) \
> - ) || __builtin_types_compatible_p ( _type, void * ), \
> - (_type)(_var), \
> - RTEMS_DEQUALIFY_types_not_compatible() \
> - ) \
> -)
> -#endif /*__GNUC__*/
> -#endif /*__cplusplus*/
> +/* Generated from spec:/rtems/basedefs/if/used */
>
> -#ifndef RTEMS_DECONST
> -#ifdef RTEMS_DEQUALIFY_DEPTHX
> -#define RTEMS_DECONST( _type, _var ) \
> - RTEMS_DEQUALIFY_DEPTHX( *, _type, _var )
> -#else /*RTEMS_DEQUALIFY_DEPTHX*/
> /**
> - * @brief Removes the const qualifier from a type of a variable.
> + * @ingroup RTEMSAPIBaseDefs
> *
> - * @param[in] _type The target type for the variable.
> - * @param[in] _var The variable.
> + * @brief Tells the compiler that the variable or function is used.
> */
> -#define RTEMS_DECONST( _type, _var ) \
> - ((_type)(uintptr_t)(const void *) ( _var ))
> +#if defined(__GNUC__)
> + #define RTEMS_USED __attribute__((__used__))
> +#else
> + #define RTEMS_USED
> +#endif
>
> -#endif /*RTEMS_DEQUALIFY_DEPTHX*/
> -#endif /*RTEMS_DECONST*/
> +/* Generated from spec:/rtems/basedefs/if/compiler-used-attribute */
>
> -#ifndef RTEMS_DEVOLATILE
> -#ifdef RTEMS_DEQUALIFY_DEPTHX
> -#define RTEMS_DEVOLATILE( _type, _var ) \
> - RTEMS_DEQUALIFY_DEPTHX( *, _type, _var )
> -#else /*RTEMS_DEQUALIFY_DEPTHX*/
> /**
> - * @brief Removes the volatile qualifier from a type of a variable.
> + * @ingroup RTEMSAPIBaseDefs
> *
> - * @param[in] _type The target type for the variable.
> - * @param[in] _var The variable.
> + * @brief Provided for backward compatibility.
> */
> -#define RTEMS_DEVOLATILE( _type, _var ) \
> - ((_type)(uintptr_t)(volatile void *) ( _var ))
> +#define RTEMS_COMPILER_USED_ATTRIBUTE RTEMS_USED
>
> -#endif /*RTEMS_DEQUALIFY_DEPTHX*/
> -#endif /*RTEMS_DEVOLATILE*/
> +/* Generated from spec:/rtems/basedefs/if/warn-unused-result */
>
> -#ifndef RTEMS_DEQUALIFY
> -#ifdef RTEMS_DEQUALIFY_DEPTHX
> -#define RTEMS_DEQUALIFY( _type, _var ) \
> - RTEMS_DEQUALIFY_DEPTHX( *, _type, _var )
> -#else /*RTEMS_DEQUALIFY_DEPTHX*/
> /**
> - * @brief Removes the all qualifiers from a type of a variable.
> + * @ingroup RTEMSAPIBaseDefs
> *
> - * @param[in] _type The target type for the variable.
> - * @param[in] _var The variable.
> + * @brief Tells the compiler in a declaration that the result of this
> function
> + * should be used.
> */
> -#define RTEMS_DEQUALIFY( _type, _var ) \
> - ((_type)(uintptr_t)(const volatile void *) ( _var ))
> +#if defined(__GNUC__)
> + #define RTEMS_WARN_UNUSED_RESULT __attribute__((__warn_unused_result__))
> +#else
> + #define RTEMS_WARN_UNUSED_RESULT
> +#endif
>
> -#endif /*RTEMS_DEQUALIFY_DEPTHX*/
> -#endif /*RTEMS_DEQUALIFY*/
> +/* Generated from spec:/rtems/basedefs/if/weak */
>
> /**
> - * @brief Evaluates to true if the members of two types have the same type.
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief Tells the compiler in a function definition that this function
> should
> + * be weak.
> *
> - * @param[in] _t_lhs Left hand side type.
> - * @param[in] _m_lhs Left hand side member.
> - * @param[in] _t_rhs Right hand side type.
> - * @param[in] _m_rhs Right hand side member.
> + * Use this attribute for function definitions. Do not use it for function
> + * declarations.
> */
> -#ifdef __GNUC__
> - #define RTEMS_HAVE_MEMBER_SAME_TYPE( _t_lhs, _m_lhs, _t_rhs, _m_rhs ) \
> - __builtin_types_compatible_p( \
> - __typeof__( ( (_t_lhs *) 0 )->_m_lhs ), \
> - __typeof__( ( (_t_rhs *) 0 )->_m_rhs ) \
> - )
> +#if defined(__GNUC__)
> + #define RTEMS_WEAK __attribute__((__weak__))
> #else
> - #define RTEMS_HAVE_MEMBER_SAME_TYPE( _t_lhs, _m_lhs, _t_rhs, _m_rhs ) \
> - true
> + #define RTEMS_WEAK
> #endif
>
> +/* Generated from spec:/rtems/basedefs/if/weak-alias */
> +
> /**
> - * @brief Concatenates _x and _y without expanding.
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief Instructs the compiler to generate a weak alias to the target
> + * function.
> + *
> + * @param _target is the target function name.
> */
> -#define RTEMS_CONCAT( _x, _y ) _x##_y
> +#if defined(__GNUC__)
> + #define RTEMS_WEAK_ALIAS( _target ) \
> + __attribute__((__weak__, __alias__(#_target)))
> +#else
> + #define RTEMS_WEAK_ALIAS( _target )
> +#endif
> +
> +/* Generated from spec:/rtems/basedefs/if/xstring */
>
> /**
> - * @brief Concatenates expansion of _x and expansion of _y.
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief Stringifies the expansion of _x.
> + *
> + * @param _x is the token expand and stringify.
> + *
> + * @return Returns the stringification of the expansion of token _x.
> */
> -#define RTEMS_XCONCAT( _x, _y ) RTEMS_CONCAT( _x, _y )
> +#define RTEMS_XSTRING( _x ) RTEMS_STRING( _x )
> +
> +/* Generated from spec:/rtems/basedefs/if/define-global-symbol */
>
> /**
> - * @brief Stringifies _x without expanding.
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief Defines a global symbol with the name and value.
> + *
> + * This macro shall be placed at file scope.
> + *
> + * @param _name is the user defined name of the symbol. The name shall be a
> + * valid designator. On the name a macro expansion is performed and
> + * afterwards it is stringified.
> + *
> + * @param _value is the value of the symbol. On the value a macro expansion
> is
> + * performed and afterwards it is stringified. It shall expand to an
> integer
> + * expression understood by the assembler.
> */
> -#define RTEMS_STRING( _x ) #_x
> +#if defined(__USER_LABEL_PREFIX__)
> + #define RTEMS_DEFINE_GLOBAL_SYMBOL( _name, _value ) \
> + __asm__( \
> + "\t.globl " RTEMS_XSTRING( RTEMS_SYMBOL_NAME( _name ) ) \
> + "\n\t.set " RTEMS_XSTRING( RTEMS_SYMBOL_NAME( _name ) ) \
> + ", " RTEMS_STRING( _value ) "\n" \
> + )
> +#else
> + #define RTEMS_DEFINE_GLOBAL_SYMBOL( _name, _value )
> +#endif
> +
> +/* Generated from spec:/rtems/basedefs/if/zero-length-array */
>
> /**
> - * @brief Stringifies expansion of _x.
> + * @ingroup RTEMSAPIBaseDefs
> + *
> + * @brief This constant represents the element count of a zero-length array.
> + *
> + * Zero-length arrays are valid in C99 as flexible array members. C++11 does
> + * not allow flexible array members. Use the GNU extension which is also
> + * supported by other compilers.
> */
> -#define RTEMS_XSTRING( _x ) RTEMS_STRING( _x )
> +#if __STDC_VERSION__ >= 199409L
> + #define RTEMS_ZERO_LENGTH_ARRAY
> +#else
> + #define RTEMS_ZERO_LENGTH_ARRAY 0
> +#endif
>
> -/** @} */
> +#ifdef __cplusplus
> +}
> +#endif
>
> -#endif /* _RTEMS_BASEDEFS_H */
> +#endif /* _RTEMS_SCORE_BASEDEFS_H */
> --
> 2.26.2
>
>
>
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