Ejemplos de ia32_init_pp_list en C++ (Cpp)

Ejemplo n.º 1

Archivo: binfmt_elf32.c Proyecto: BackupTheBerlios/arp2-svn

int
ia32_setup_arg_pages (struct linux_binprm *bprm, int executable_stack)
{
	unsigned long stack_base;
	struct vm_area_struct *mpnt;
	struct mm_struct *mm = current->mm;
	int i, ret;

	stack_base = IA32_STACK_TOP - MAX_ARG_PAGES*PAGE_SIZE;
	mm->arg_start = bprm->p + stack_base;

	bprm->p += stack_base;
	if (bprm->loader)
		bprm->loader += stack_base;
	bprm->exec += stack_base;

	mpnt = kmem_cache_alloc(vm_area_cachep, SLAB_KERNEL);
	if (!mpnt)
		return -ENOMEM;

	memset(mpnt, 0, sizeof(*mpnt));

	down_write(&current->mm->mmap_sem);
	{
		mpnt->vm_mm = current->mm;
		mpnt->vm_start = PAGE_MASK & (unsigned long) bprm->p;
		mpnt->vm_end = IA32_STACK_TOP;
		if (executable_stack == EXSTACK_ENABLE_X)
			mpnt->vm_flags = VM_STACK_FLAGS |  VM_EXEC;
		else if (executable_stack == EXSTACK_DISABLE_X)
			mpnt->vm_flags = VM_STACK_FLAGS & ~VM_EXEC;
		else
			mpnt->vm_flags = VM_STACK_FLAGS;
		mpnt->vm_page_prot = (mpnt->vm_flags & VM_EXEC)?
					PAGE_COPY_EXEC: PAGE_COPY;
		if ((ret = insert_vm_struct(current->mm, mpnt))) {
			up_write(&current->mm->mmap_sem);
			kmem_cache_free(vm_area_cachep, mpnt);
			return ret;
		}
		current->mm->stack_vm = current->mm->total_vm = vma_pages(mpnt);
	}

	for (i = 0 ; i < MAX_ARG_PAGES ; i++) {
		struct page *page = bprm->page[i];
		if (page) {
			bprm->page[i] = NULL;
			install_arg_page(mpnt, page, stack_base);
		}
		stack_base += PAGE_SIZE;
	}
	up_write(&current->mm->mmap_sem);

	/* Can't do it in ia64_elf32_init(). Needs to be done before calls to
	   elf32_map() */
	current->thread.ppl = ia32_init_pp_list();

	return 0;
}

Ejemplo n.º 2

Archivo: binfmt_elf32.c Proyecto: BinVul/linux2.6.32

int
ia32_setup_arg_pages (struct linux_binprm *bprm, int executable_stack)
{
	int ret;

	ret = setup_arg_pages(bprm, IA32_STACK_TOP, executable_stack);
	if (!ret) {
		/*
		 * Can't do it in ia64_elf32_init(). Needs to be done before
		 * calls to elf32_map()
		 */
		current->thread.ppl = ia32_init_pp_list();
	}

	return ret;
}