diff options
Diffstat (limited to 'src/core/malloc.c')
| -rw-r--r-- | src/core/malloc.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/core/malloc.c b/src/core/malloc.c index bf94592cc..2d892f42d 100644 --- a/src/core/malloc.c +++ b/src/core/malloc.c @@ -22,6 +22,7 @@ #include <strings.h> #include <io.h> #include <gpxe/list.h> +#include <gpxe/init.h> #include <gpxe/malloc.h> /** @file @@ -73,6 +74,16 @@ static LIST_HEAD ( free_blocks ); size_t freemem; /** + * Heap size + * + * Currently fixed at 128kB. + */ +#define HEAP_SIZE ( 128 * 1024 ) + +/** The heap itself */ +static char heap[HEAP_SIZE] __attribute__ (( aligned ( __alignof__(void *) ))); + +/** * Allocate a memory block * * @v size Requested size @@ -342,6 +353,19 @@ void mpopulate ( void *start, size_t len ) { free_memblock ( start, ( len & ~( MIN_MEMBLOCK_SIZE - 1 ) ) ); } +/** + * Initialise the heap + * + */ +static void init_heap ( void ) { + mpopulate ( heap, sizeof ( heap ) ); +} + +/** Memory allocator initialisation function */ +struct init_fn heap_init_fn __init_fn ( INIT_EARLY ) = { + .initialise = init_heap, +}; + #if 0 #include <stdio.h> /** |