Function PREFIX(free)

Kernel/src/liballoc/liballoc.c:547–652

}

void PREFIX(free)(void *ptr)
{
	struct liballoc_minor *min;
	struct liballoc_major *maj;

	if (ptr == NULL)
	{
		l_warningCount += 1;
#if defined DEBUG || defined INFO
		FLUSH();
#endif
		return;
	}

	UNALIGN(ptr);

	liballoc_lock();		// lockit


	min = (struct liballoc_minor*)((uintptr_t)ptr - sizeof(struct liballoc_minor));


	if (min->magic != LIBALLOC_MAGIC)
	{
		l_errorCount += 1;

		// Check for overrun errors. For all bytes of LIBALLOC_MAGIC 
		if (
			((min->magic & 0xFFFFFF) == (LIBALLOC_MAGIC & 0xFFFFFF)) ||
			((min->magic & 0xFFFF) == (LIBALLOC_MAGIC & 0xFFFF)) ||
			((min->magic & 0xFF) == (LIBALLOC_MAGIC & 0xFF))
			)
		{
			l_possibleOverruns += 1;
#if defined DEBUG || defined INFO
			assert(!"liballoc: ERROR: Possible 1-3 byte overrun\n");
			halt();
			FLUSH();
#endif
		}


		if (min->magic == LIBALLOC_DEAD)
		{
#if defined DEBUG || defined INFO
			assert(!"liballoc: ERROR: multiple PREFIX(free)() attempt \n");
			halt();
			FLUSH();
#endif
		}
		else
		{
#if defined DEBUG || defined INFO
			assert(!"liballoc: ERROR: Bad PREFIX(free)( %x ) \n");
			halt();
			FLUSH();
#endif
		}