diff options
author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2019-12-13 06:25:03 +0100 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2020-02-04 05:52:28 +0100 |
commit | c477d927e8578adfb35a77ff39542b96da7c2a37 (patch) | |
tree | 9bf4a842b83b9a56defe50ab8457eaeff1c1e0ae /cpukit | |
parent | score: Add Memory Handler (diff) | |
download | rtems-c477d927e8578adfb35a77ff39542b96da7c2a37.tar.bz2 |
score: Add _Memory_Fill()
Update #3838.
Diffstat (limited to 'cpukit')
-rw-r--r-- | cpukit/Makefile.am | 1 | ||||
-rw-r--r-- | cpukit/include/rtems/score/memory.h | 11 | ||||
-rw-r--r-- | cpukit/score/src/memoryfill.c | 48 |
3 files changed, 59 insertions, 1 deletions
diff --git a/cpukit/Makefile.am b/cpukit/Makefile.am index 3975db440a..095b884cd1 100644 --- a/cpukit/Makefile.am +++ b/cpukit/Makefile.am @@ -853,6 +853,7 @@ librtemscpu_a_SOURCES += score/src/heapiterate.c librtemscpu_a_SOURCES += score/src/heapgreedy.c librtemscpu_a_SOURCES += score/src/heapnoextend.c librtemscpu_a_SOURCES += score/src/memoryallocate.c +librtemscpu_a_SOURCES += score/src/memoryfill.c librtemscpu_a_SOURCES += score/src/objectallocate.c librtemscpu_a_SOURCES += score/src/objectclose.c librtemscpu_a_SOURCES += score/src/objectextendinformation.c diff --git a/cpukit/include/rtems/score/memory.h b/cpukit/include/rtems/score/memory.h index e4d1198862..f26c7f4031 100644 --- a/cpukit/include/rtems/score/memory.h +++ b/cpukit/include/rtems/score/memory.h @@ -306,7 +306,7 @@ const Memory_Information *_Memory_Get( void ); /** * @brief Allocate a memory area from the memory information. * - * It is not possible to free the memory allocated by this function. + * It is not possible to free the memory area allocated by this function. * * @param information The memory information. * @param size The size in bytes of the memory area to allocate. @@ -322,6 +322,15 @@ void *_Memory_Allocate( uintptr_t alignment ); +/** + * @brief Fill all free memory areas of the memory information with a constant + * byte. + * + * @param information The memory information. + * @param c The constant byte to fill the free memory areas. + */ +void _Memory_Fill( const Memory_Information *information, int c ); + /** @} */ #ifdef __cplusplus diff --git a/cpukit/score/src/memoryfill.c b/cpukit/score/src/memoryfill.c new file mode 100644 index 0000000000..7428b1aa86 --- /dev/null +++ b/cpukit/score/src/memoryfill.c @@ -0,0 +1,48 @@ +/* + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright (C) 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. + * + * 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. + */ + +#if HAVE_CONFIG_H +#include "config.h" +#endif + +#include <rtems/score/memory.h> + +#include <string.h> + +void _Memory_Fill( const Memory_Information *information, int c ) +{ + Memory_Area *area; + const Memory_Area *end; + + area = &information->areas[ 0 ]; + end = &information->areas[ information->count ]; + + while ( area != end ) { + memset( _Memory_Get_free_begin( area ), c, _Memory_Get_free_size( area ) ); + ++area; + } +} |