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#include <stdlib.h>
#include <console/console.h>
#if 0
#define MALLOCDBG(x)
#else
#define MALLOCDBG(x...) printk_spew(x)
#endif
extern unsigned char _heap, _eheap;
static void *free_mem_ptr = &_heap; /* Start of heap */
static void *free_mem_end_ptr = &_eheap; /* End of heap */
void malloc_mark(malloc_mark_t *place)
{
*place = (malloc_mark_t)free_mem_ptr;
printk_spew("malloc_mark %p\n", free_mem_ptr);
}
void malloc_release(malloc_mark_t *ptr)
{
free_mem_ptr = (void *)*ptr;
printk_spew("malloc_release %p\n", free_mem_ptr);
}
void *malloc(size_t size)
{
void *p;
MALLOCDBG("%s Enter, size %ld, free_mem_ptr %p\n", __func__, size, free_mem_ptr);
if (size < 0)
die("Error! malloc: Size < 0");
if (free_mem_ptr <= 0)
die("Error! malloc: Free_mem_ptr <= 0");
free_mem_ptr = (void *)(((unsigned long)free_mem_ptr + 3) & ~3); /* Align */
p = (void *) free_mem_ptr;
free_mem_ptr += size;
if (free_mem_ptr >= free_mem_end_ptr)
die("Error! malloc: free_mem_ptr >= free_mem_end_ptr");
MALLOCDBG("malloc %p\n", p);
return p;
}
void free(void *where)
{
/* Don't care */
}
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