Ejemplos de UML_ROUND_DOWN en C++ (Cpp)

Ejemplo n.º 1

Archivo: process_kern.c Proyecto: GodFox/magx_kernel_xpixl

static void mprotect_kernel_mem(int w)
{
	unsigned long start, end;
	int pages;

	if(!jail || (current == &init_task)) return;

	pages = (1 << CONFIG_KERNEL_STACK_ORDER);

	start = (unsigned long) current_thread + PAGE_SIZE;
	end = (unsigned long) current_thread + PAGE_SIZE * pages;
	protect_memory(uml_reserved, start - uml_reserved, 1, w, 1, 1);
	protect_memory(end, high_physmem - end, 1, w, 1, 1);

	start = (unsigned long) UML_ROUND_DOWN(&_stext);
	end = (unsigned long) UML_ROUND_UP(&_etext);
	protect_memory(start, end - start, 1, w, 1, 1);

	start = (unsigned long) UML_ROUND_DOWN(&_unprotected_end);
	end = (unsigned long) UML_ROUND_UP(&_edata);
	protect_memory(start, end - start, 1, w, 1, 1);

	start = (unsigned long) UML_ROUND_DOWN(&__bss_start);
	end = (unsigned long) UML_ROUND_UP(brk_start);
	protect_memory(start, end - start, 1, w, 1, 1);

	mprotect_kernel_vm(w);
}

Ejemplo n.º 2

Archivo: mem.c Proyecto: Dronevery/JetsonTK1-kernel

void before_mem_tt(unsigned long brk_start)
{
	if(debug)
		remap_data(UML_ROUND_DOWN(&_stext), UML_ROUND_UP(&_etext), 1);
	remap_data(UML_ROUND_DOWN(&_sdata), UML_ROUND_UP(&_edata), 1);
	remap_data(UML_ROUND_DOWN(&__bss_start), UML_ROUND_UP(&_end), 1);
}