Linux Kernel Architecture

Mauerer bindex.tex V1 - 09/05/2008 9:44am Page 1332

system calls(continued)

system calls(continued)

starting new programs, 79–83

strace, 838–840

structure of, 830

summary, 846

switching between user and kernel mode, 9

system programming and, 820

thread generation, 75–77

threads and, 77–79

timer-related, 944–947

tracing and, 820–822, 843, 845

unmount, 562–563

VFS files, 538–539

VFS programming interface and, 523–524

system calls, for auditing, 1110–1116

access vector cache auditing, 1114–1115

audit context allocation, 1110–1111

standard hooks, 1115–1116

system call events, 1112–1114

system controls.Seesysctls

system devices, accessing, 401

system errors, searching for, 1232–1233

system information

procfilesystem, 648–650

system calls for managing, 829

system management, kernel issues related

to, 35–36

system programming, 820

system security, 829–830

system settings, 829

system startup, 1223–1239

architecture-specific setup, 1226–1227

command-line arguments, 1227–1228

driver setup, 1234–1237

high-level initialization, 1225

IA-32 systems, 1224–1225

initthread, 1233–1234

initialization functions, 162–163

initializing central data structures and

caches, 1228–1232

overview of, 1223

removing initialization data, 1237–1238

searching for system errors, 1232–1233

subsystem initialization, 1225–1226

summary, 1239

userspace initialization, 1238–1239

system trace.Seetracing system calls

System V

interprocess communication and, 347

IPC mechanisms, 366–367

IPC permissions, 376

message queues, 376–380

overview of, 366

semaphore data structures, 369–375

semaphore system calls, 375

semaphore use, 367–369

shared memory, 380–381

T

tags, radix trees, 959–960

tags, search tags, 952

task switching

processes and, 4

scheduler and, 87

scheduler policy compared with, 36

task_structdata structure

code listing, 41–43

exit_stateelement, 44

extension for auditing, 1100–1104

resource limits, 45–47

sections of, 44

stateelement, 44

tasklets, 879–882

executing, 881–882

generating, 880

overview of, 879–880

registering, 880–881

tasks

elements in process task structure, 87–89

procfilesystem, 666

process management and, 62–63

relating task structures to namespaces,

59–62