2 #include <console/console.h>
4 #if CONFIG_DEBUG_MALLOC
5 #define MALLOCDBG(x...) printk(BIOS_SPEW, x)
7 #define MALLOCDBG(x...)
10 extern unsigned char _heap, _eheap;
11 static void *free_mem_ptr = &_heap; /* Start of heap */
12 static void *free_mem_end_ptr = &_eheap; /* End of heap */
14 void *malloc(size_t size)
18 MALLOCDBG("%s Enter, size %ld, free_mem_ptr %p\n", __func__, size, free_mem_ptr);
20 /* Checking arguments */
22 die("Error! malloc: size < 0");
24 /* Overzealous linker check */
25 if (free_mem_ptr <= 0)
26 die("Error! malloc: Free_mem_ptr <= 0");
28 free_mem_ptr = (void *)ALIGN((unsigned long)free_mem_ptr, 4);
30 p = (void *) free_mem_ptr;
33 if (free_mem_ptr >= free_mem_end_ptr)
34 die("Error! malloc: Out of memory (free_mem_ptr >= free_mem_end_ptr)");
36 MALLOCDBG("malloc %p\n", p);
41 void free(void *where)
44 MALLOCDBG("free %p\n", where);