-/*
- * Begin and End of memory area for malloc(), and current "brk"
- */
-static ulong mem_malloc_start = 0;
-static ulong mem_malloc_end = 0;
-static ulong mem_malloc_brk = 0;
-
-/*
- * The Malloc area is immediately below the monitor copy in RAM
- */
-static void mem_malloc_init (void)
-{
- mem_malloc_start = CONFIG_SYS_MALLOC_BASE;
- mem_malloc_end = mem_malloc_start + CONFIG_SYS_MALLOC_LEN;
- mem_malloc_brk = mem_malloc_start;
- memset ((void *) mem_malloc_start,
- 0,
- mem_malloc_end - mem_malloc_start);
-}
-
-void *sbrk (ptrdiff_t increment)
-{
- ulong old = mem_malloc_brk;
- ulong new = old + increment;
-
- if ((new < mem_malloc_start) || (new > mem_malloc_end)) {
- return (NULL);
- }
- mem_malloc_brk = new;
- return ((void *) old);
-}
-