diff options
Diffstat (limited to '')
| -rw-r--r-- | cpukit/libcsupport/Makefile.am | 1 | ||||
| -rw-r--r-- | cpukit/libcsupport/src/cachealignedalloc.c | 28 |
2 files changed, 29 insertions, 0 deletions
diff --git a/cpukit/libcsupport/Makefile.am b/cpukit/libcsupport/Makefile.am index bd3f90a648..95c85c4ede 100644 --- a/cpukit/libcsupport/Makefile.am +++ b/cpukit/libcsupport/Makefile.am @@ -108,6 +108,7 @@ MALLOC_C_FILES = src/malloc_initialize.c src/calloc.c src/malloc.c \ src/rtems_heap_null_extend.c \ src/rtems_heap_extend.c \ src/rtems_heap_greedy.c +MALLOC_C_FILES += src/cachealignedalloc.c PASSWORD_GROUP_C_FILES = src/pwdgrp.c PASSWORD_GROUP_C_FILES += src/getgrent.c diff --git a/cpukit/libcsupport/src/cachealignedalloc.c b/cpukit/libcsupport/src/cachealignedalloc.c new file mode 100644 index 0000000000..a704859dbe --- /dev/null +++ b/cpukit/libcsupport/src/cachealignedalloc.c @@ -0,0 +1,28 @@ +/* + * RTEMS Cache Aligned Malloc + * + * + * COPYRIGHT (c) 1989-1999. + * On-Line Applications Research Corporation (OAR). + * + * 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. + */ + +#include <rtems.h> +#include <rtems/malloc.h> + +void *rtems_cache_aligned_malloc( size_t nbytes ) +{ + size_t line_size = rtems_cache_get_data_line_size(); + + if ( line_size > 0 ) { + /* Assume that the cache line size is a power of two */ + size_t m = line_size - 1; + + nbytes = (nbytes + m) & ~m; + } + + return rtems_heap_allocate_aligned_with_boundary( nbytes, line_size, 0 ); +} |