diff options
Diffstat (limited to 'cpukit/include/rtems/score/percpudata.h')
| -rw-r--r-- | cpukit/include/rtems/score/percpudata.h | 45 |
1 files changed, 36 insertions, 9 deletions
diff --git a/cpukit/include/rtems/score/percpudata.h b/cpukit/include/rtems/score/percpudata.h index cae73a62b0..817adde232 100644 --- a/cpukit/include/rtems/score/percpudata.h +++ b/cpukit/include/rtems/score/percpudata.h @@ -1,3 +1,5 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ + /** * @file * @@ -8,17 +10,28 @@ */ /* - * Copyright (c) 2018 embedded brains GmbH. All rights reserved. + * Copyright (c) 2018 embedded brains GmbH & Co. KG * - * embedded brains GmbH - * Dornierstr. 4 - * 82178 Puchheim - * Germany - * <rtems@embedded-brains.de> + * 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_SCORE_PERCPUDATA_H @@ -51,6 +64,20 @@ extern "C" { RTEMS_LINKER_RWSET_DECLARE( _Per_CPU_Data, char ); /** + * @brief Translation units which define per-CPU items shall call this macro + * exactly once at file scope. + */ +#ifdef RTEMS_SMP +#define PER_CPU_DATA_NEED_INITIALIZATION() \ + static const char * const _Per_CPU_Data_reference \ + RTEMS_SECTION( ".rtemsroset.reference" ) RTEMS_USED = \ + RTEMS_LINKER_SET_BEGIN( _Per_CPU_Data ) +#else +#define PER_CPU_DATA_NEED_INITIALIZATION() \ + RTEMS_LINKER_RWSET_DECLARE( _Per_CPU_Data, char ) +#endif + +/** * @brief Declares a per-CPU item of the specified type. * * Items declared with this macro have external linkage. |