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rtemsbsd: Add linkersets.h from current rtems 4.12.

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This commit is contained in:
Christian Mauderer
2016-08-03 08:38:14 +02:00
committed by Sebastian Huber
parent 1229ace609
commit 8953442793
1 changed files with 104 additions and 0 deletions
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104
rtemsbsd/include/rtems/linkersets.h Normal file
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/*
* Copyright (c) 2015 embedded brains GmbH. All rights reserved.
*
* embedded brains GmbH
* Dornierstr. 4
* 82178 Puchheim
* Germany
* <rtems@embedded-brains.de>
*
* 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.
*/
#ifndef _RTEMS_LINKERSET_H
#define _RTEMS_LINKERSET_H
#include <rtems/score/basedefs.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#define RTEMS_LINKER_SET_BEGIN( set ) \
_Linker_set_##set##_begin
#define RTEMS_LINKER_SET_END( set ) \
_Linker_set_##set##_end
#define RTEMS_LINKER_SET_SIZE( set ) \
( (size_t) ( _Linker_set_##set##_end - _Linker_set_##set##_begin ) )
#define RTEMS_LINKER_ROSET_DECLARE( set, type ) \
extern type volatile const RTEMS_LINKER_SET_BEGIN( set )[0]; \
extern type volatile const RTEMS_LINKER_SET_END( set )[0]
#define RTEMS_LINKER_ROSET( set, type ) \
type volatile const RTEMS_LINKER_SET_BEGIN( set )[0] \
RTEMS_SECTION( ".rtemsroset." #set ".begin" ) RTEMS_USED; \
type volatile const RTEMS_LINKER_SET_END( set )[0] \
RTEMS_SECTION( ".rtemsroset." #set ".end" ) RTEMS_USED
#define RTEMS_LINKER_ROSET_ITEM_DECLARE( set, type, item ) \
extern type volatile const _Linker_set_##set##_##item
#define RTEMS_LINKER_ROSET_ITEM_REFERENCE( set, type, item ) \
static type volatile const * const _Set_reference_##set##_##item \
RTEMS_SECTION( ".rtemsroset.reference" ) RTEMS_USED = \
&_Linker_set_##set##_##item
#define RTEMS_LINKER_ROSET_ITEM_ORDERED( set, type, item, order ) \
type volatile const _Linker_set_##set##_##item \
RTEMS_SECTION( ".rtemsroset." #set ".content.0." RTEMS_XSTRING( order ) ) \
RTEMS_USED
#define RTEMS_LINKER_ROSET_ITEM( set, type, item ) \
type volatile const _Linker_set_##set##_##item \
RTEMS_SECTION( ".rtemsroset." #set ".content.1" ) RTEMS_USED
#define RTEMS_LINKER_ROSET_CONTENT( set, decl ) \
decl \
RTEMS_SECTION( ".rtemsroset." #set ".content" )
#define RTEMS_LINKER_RWSET_DECLARE( set, type ) \
extern type volatile RTEMS_LINKER_SET_BEGIN( set )[0]; \
extern type volatile RTEMS_LINKER_SET_END( set )[0]
#define RTEMS_LINKER_RWSET( set, type ) \
type volatile RTEMS_LINKER_SET_BEGIN( set )[0] \
RTEMS_SECTION( ".rtemsrwset." #set ".begin" ) RTEMS_USED; \
type volatile RTEMS_LINKER_SET_END( set )[0] \
RTEMS_SECTION( ".rtemsrwset." #set ".end" ) RTEMS_USED
#define RTEMS_LINKER_RWSET_ITEM_DECLARE( set, type, item ) \
extern type volatile _Linker_set_##set##_##item
/*
* The .rtemsroset is here not a typo. We must ensure that the references are
* not a victim of the garbage collection of the linker. Thus, we place them
* in a dedicated area of the RTEMS read-only linker set section.
*/
#define RTEMS_LINKER_RWSET_ITEM_REFERENCE( set, type, item ) \
static type volatile * const _Set_reference_##set##_##item \
RTEMS_SECTION( ".rtemsroset.reference" ) RTEMS_USED = \
&_Linker_set_##set##_##item
#define RTEMS_LINKER_RWSET_ITEM_ORDERED( set, type, item, order ) \
type volatile _Linker_set_##set##_##item \
RTEMS_SECTION( ".rtemsrwset." #set ".content.0." RTEMS_XSTRING( order ) ) \
RTEMS_USED
#define RTEMS_LINKER_RWSET_ITEM( set, type, item ) \
type volatile _Linker_set_##set##_##item \
RTEMS_SECTION( ".rtemsrwset." #set ".content.1" ) RTEMS_USED
#define RTEMS_LINKER_RWSET_CONTENT( set, decl ) \
decl \
RTEMS_SECTION( ".rtemsrwset." #set ".content" )
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* _RTEMS_LINKERSET_H */