coreboot-kgpe-d16/util/extensions/legacybios/kernel/malloc.c

36 lines
638 B
C
Raw Normal View History

// 32k heap
void printk(const char *fmt, ...);
#define error printk
static unsigned long free_mem_ptr = 0x20000; /* Start of heap */
static unsigned long free_mem_end_ptr = 0x28000; /* End of heap */
void *malloc(unsigned int size)
{
void *p;
if (size < 0)
error("Error! malloc: Size < 0");
if (free_mem_ptr <= 0)
error("Error! malloc: Free_mem_ptr <= 0");
free_mem_ptr = (free_mem_ptr + 3) & ~3; /* Align */
p = (void *) free_mem_ptr;
free_mem_ptr += size;
if (free_mem_ptr >= free_mem_end_ptr)
error("Error! malloc: Free_mem_ptr >= free_mem_end_ptr");
return p;
}
void free(void *where)
{
/* Don't care */
}