Linux Kernel Architecture

Mauerer bindex.tex V1 - 09/05/2008 9:44am Page 1302

data types

data types, 25–27

access to userspace and, 27

alignment of data, 1119

atomic_t, 352–353

byte order, 26–27

ELF, 1250–1251

kernel architecture and, 1118–1119

overview of, 25

per-CPU variables, 27

type definitions, 26

databases

character device ranges, 404–405

devices, 403–404

UDP

netlink support for, 810

sockets for, 744–745

DDD (Data Display Debugger), 1171–1172

dead code elimination, C optimization,

1190–1192

debugfs, 687–688

debugging kernel, 1169–1173

DDD (Data Display Debugger), 1171–1172

examining local kernel, 1171–1172

GDB (Gnu debugger), 1170–1172

KGDB, 1172–1173

overview of, 1169–1170

defragmentation, of IP packets, 772–773

demand allocation

page faults, 337–339

userspace page faults, 336

demand paging

data structures and, 298

defined, 297

page faults, 337–339

userspace page faults, 336

dentry cache.Seedirectory entry cache

dependencies

Kconfig, 1151–1152

modules, 476–478, 488–489

depmodtool, for dependencies, 478

destination unreachable message, UDP,

785–787

development cycles, 1269–1272.See also

kernel development process

device access, 397–406

addressing usingIOCTL, 400–401

character devices, block devices, and other

devices, 397

device files and, 397

dynamic creation of device files, 399–400

identifying device files, 397–399

major and minor numbers for representing,

401–402

network cards and other system devices,

401

overview of, 397

registering character and block devices,

403–406

device drivers

block devices.Seeblock devices

bus system and.Seebus systems

character devices.Seecharacter devices

device access and.Seedevice access

device filesystem and.Seedevice files

generic driver model, 449

I/O architecture for.SeeI/O (input/output)

architecture

Makefile for, 1158–1160

overview of, 391

PCI driver functions, 461

PCI driver registration, 462–463

PCI drivers, 457

peripheral devices and, 17–18

registering, 454

resource reservation and.Seeresource

reservations

summary, 471

system startup, 1234–1237

USB drivers, 466–468

device files

device access and, 397

dynamic creation of, 399–400

Ex2, 604

file elements in inodes, 406–407