Exemplos de stack_maxrandom_size em C++ (Cpp)

Exemplo n.º 1

Arquivo: mmap.c Projeto: EMCAntimatter/linux

static unsigned long mmap_base(unsigned long rnd, unsigned long task_size,
			       struct rlimit *rlim_stack)
{
	unsigned long gap = rlim_stack->rlim_cur;
	unsigned long pad = stack_maxrandom_size(task_size) + stack_guard_gap;
	unsigned long gap_min, gap_max;

	/* Values close to RLIM_INFINITY can overflow. */
	if (gap + pad > gap)
		gap += pad;

	/*
	 * Top of mmap area (just below the process stack).
	 * Leave an at least ~128 MB hole with possible stack randomization.
	 */
	gap_min = SIZE_128M;
	gap_max = (task_size / 6) * 5;

	if (gap < gap_min)
		gap = gap_min;
	else if (gap > gap_max)
		gap = gap_max;

	return PAGE_ALIGN(task_size - gap - rnd);
}

Exemplo n.º 2

Arquivo: mmap.c Projeto: 03199618/linux

static inline unsigned long mmap_base(void)
{
	unsigned long gap = rlimit(RLIMIT_STACK);

	if (gap < MIN_GAP)
		gap = MIN_GAP;
	else if (gap > MAX_GAP)
		gap = MAX_GAP;
	gap &= PAGE_MASK;
	return STACK_TOP - stack_maxrandom_size() - mmap_rnd() - gap;
}

Exemplo n.º 3

Arquivo: mmap.c Projeto: 3null/fastsocket

static inline unsigned long mmap_base(void)
{
	unsigned long gap = current->signal->rlim[RLIMIT_STACK].rlim_cur;

	if (gap < MIN_GAP)
		gap = MIN_GAP;
	else if (gap > MAX_GAP)
		gap = MAX_GAP;
	gap &= PAGE_MASK;
	return STACK_TOP - stack_maxrandom_size() - mmap_rnd() - gap;
}