2 #include <console/console.h>
7 #define MALLOCDBG(x) printk_spew x
9 extern unsigned char _heap, _eheap;
10 static size_t free_mem_ptr = (size_t)&_heap; /* Start of heap */
11 static size_t free_mem_end_ptr = (size_t)&_eheap; /* End of heap */
14 void malloc_mark(malloc_mark_t *place)
16 *place = free_mem_ptr;
17 printk_spew("malloc_mark 0x%08lx\n", (unsigned long)free_mem_ptr);
20 void malloc_release(malloc_mark_t *ptr)
23 printk_spew("malloc_release 0x%08lx\n", (unsigned long)free_mem_ptr);
26 void *malloc(size_t size)
30 MALLOCDBG(("%s Enter, size %d, free_mem_ptr %p\n", __FUNCTION__, size, free_mem_ptr));
32 die("Error! malloc: Size < 0");
33 if (free_mem_ptr <= 0)
34 die("Error! malloc: Free_mem_ptr <= 0");
36 free_mem_ptr = (free_mem_ptr + 3) & ~3; /* Align */
38 p = (void *) free_mem_ptr;
41 if (free_mem_ptr >= free_mem_end_ptr)
42 die("Error! malloc: Free_mem_ptr >= free_mem_end_ptr");
44 MALLOCDBG(("malloc 0x%08lx\n", (unsigned long)p));
49 void *realloc(void *mem, size_t size)
60 new_mem = malloc(size);
61 memcpy(new_mem, mem, size);
66 void free(void *where)