diff options
Diffstat (limited to 'cpukit/libcsupport/src/alloconly.c')
-rw-r--r-- | cpukit/libcsupport/src/alloconly.c | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/cpukit/libcsupport/src/alloconly.c b/cpukit/libcsupport/src/alloconly.c new file mode 100644 index 0000000000..aae38a4f9b --- /dev/null +++ b/cpukit/libcsupport/src/alloconly.c @@ -0,0 +1,88 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ + +/** + * @file + * + * @ingroup libcsupport + * + * @brief This source file contains the implementation of rtems_calloc(). + */ + +/* + * Copyright (C) 2021 embedded brains GmbH & Co. KG + * + * 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. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <rtems/malloc.h> + +#include <errno.h> +#include <stdlib.h> + +#include <rtems/score/memory.h> + +RTEMS_WEAK void *rtems_malloc( size_t size ) +{ + if ( size == 0 ) { + return NULL; + } + + return _Memory_Allocate( _Memory_Get(), size, CPU_HEAP_ALIGNMENT ); +} + +RTEMS_WEAK int posix_memalign( void **memptr, size_t alignment, size_t size ) +{ + void *p; + + RTEMS_OBFUSCATE_VARIABLE( memptr ); + + if ( memptr == NULL ) { + return EINVAL; + } + + *memptr = NULL; + + if ( alignment < sizeof (void *) ) { + return EINVAL; + } + + if ( ( ( alignment - 1 ) & alignment ) != 0 ) { + return EINVAL; + } + + if ( size == 0 ) { + return 0; + } + + p = _Memory_Allocate( _Memory_Get(), size, alignment ); + + if ( p == NULL ) { + return ENOMEM; + } + + *memptr = p; + return 0; +} |