main.cc File Reference

#include "boot/startup_ap.h"
#include "machine/lapic.h"
#include "debug/output.h"
#include "device/textstream.h"
#include "machine/ioapic.h"
#include "machine/core.h"
#include "device/mouse.h"
#include "debug/gdb/stub.h"
#include "interrupt/guard.h"
#include "thread/scheduler.h"
#include "thread/thread.h"
#include "device/watch.h"
#include "machine/hpet.h"
#include "device/clock.h"
#include "device/ticker.h"
#include "thread/assassin.h"
#include "syscall/guarded_keyboard.h"
#include "thread/wakeup.h"
#include "syscall/guarded_semaphore.h"
#include "user/app1/appl.h"
#include "user/app2/kappl.h"

Include dependency graph for main.cc:

Functions
int	main ()
	Kernels main function.
int	main_ap ()
	Entry point for application processors.

Constants
TextStream	kout
TextStream	dout [Core::MAX]
	Debug window.
Mouse	mouse (720, 400)
Watch	watch
Clock	clock
Ticker	ticker
static Assassin	assassin
GuardedKeyboard	keyboard
static WakeUp	wakeup
GuardedSemaphore	koutsem (1)
static const uint32_t	NUM_APPS = 9
static Application	apps [NUM_APPS]
static KeyboardApplication	kapp
const char *	os_name = "MP" "StuBS"

Function Documentation

main()

int main

(

)

Kernels main function.

Called after initialization of the system by kernel_init()

Note

This code will only be executed on the booting CPU (i.e., the one with ID 0).

main_ap()

int main_ap

(

)

Entry point for application processors.

Called after initialization of the system by kernel_init()

Note

Code in this function will be executed on all APs (i.e., all CPUs except ID 0)

Variable Documentation

kout

TextStream kout

dout

TextStream dout[Core::MAX]

Debug window.

Debug output using DBG like DBG << "var = " << var << endl should be displayed in window dedicated to the core it is executed on.

While this is quite easy on single core systems like OOStuBS – they only require a single TextStream object called dout – multi core systems like MPStuBS need an object array with one window per core. In the latter case direct list initialization can be used:

TextStream dout[Core::MAX]{
   {0, 40, 17, 21},   // Debug window for core 0, like TextStream(0, 40, 17, 21)
   {40, 80, 17, 21},  // Debug window for core 1, like TextStream(40, 80, 17, 21)
   //...
 };

The debug windows in should be located right below the normal output window without any overlap and should be able to display at least 3 lines. In MPStuBS, two windows can be placed side-by-side, having 40 columns each.

As an optional extension, the distribution of the windows can be done automatically in MPStuBS (according to the actual numbers of cores) with TextStream::arrange() – in this case the standard constructor (without parameters) is sufficient.

Optional:

Automatically arrange windows with TextStream::arrange()

mouse

Mouse mouse(720, 400)	(	720	,
		400
	)

watch

Watch watch

clock

Clock clock

ticker

Ticker ticker

assassin

Assassin assassin

static

keyboard

GuardedKeyboard keyboard

wakeup

WakeUp wakeup

static

koutsem

GuardedSemaphore koutsem(1)

(

1

)

NUM_APPS

const uint32_t NUM_APPS = 9

static

apps

Application apps[NUM_APPS]

static

kapp

KeyboardApplication kapp

static

os_name

const char* os_name = "MP" "StuBS"