-/*
- * Begin and End of memory area for malloc(), and current "brk"
- */
-static ulong mem_malloc_start;
-static ulong mem_malloc_end;
-static ulong mem_malloc_brk;
-
-/*
- * The Malloc area is immediately below the monitor copy in DRAM
- * aka CONFIG_SYS_MONITOR_BASE - Note there is no need for reloc_off
- * as our monitory code is run from SDRAM
- */
-static void mem_malloc_init (void)
-{
- mem_malloc_end = (CONFIG_SYS_MALLOC_BASE + CONFIG_SYS_MALLOC_LEN);
- mem_malloc_start = CONFIG_SYS_MALLOC_BASE;
- 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);
-}
-