C++ (Cpp) pagemap_init Beispiele

Beispiel #1

void fuzix_main(void)
{
	/* setup state */
	inint = false;
	udata.u_insys = true;

#ifdef PROGTOP		/* FIXME */
	ramtop = (uaddr_t)PROGTOP;
#endif

	tty_init();

	if (d_open(TTYDEV, 0) != 0)
		panic(PANIC_NOTTY);

	/* Sign on messages */
	kprintf(
			"FUZIX version %s\n"
			"Copyright (c) 1988-2002 by H.F.Bower, D.Braun, S.Nitschke, H.Peraza\n"
			"Copyright (c) 1997-2001 by Arcady Schekochikhin, Adriano C. R. da Cunha\n"
			"Copyright (c) 2013-2015 Will Sowerbutts <*****@*****.**>\n"
			"Copyright (c) 2014-2015 Alan Cox <*****@*****.**>\nDevboot\n",
			sysinfo.uname);

#ifndef SWAPDEV
#ifdef PROC_SIZE
	maxproc = procmem / PROC_SIZE;
	/* Check we don't exceed the process table size limit */
	if (maxproc > PTABSIZE) {
		kprintf("WARNING: Increase PTABSIZE to %d to use available RAM\n",
				maxproc);
		maxproc = PTABSIZE;
	}
#else
	maxproc = PTABSIZE;
#endif
#else
	maxproc = PTABSIZE;
#endif
	/* Used as a stop marker to make compares fast on process
	   scheduling and the like */
	ptab_end = &ptab[maxproc];

	/* Parameters message */
	kprintf("%dkB total RAM, %dkB available to processes (%d processes max)\n", ramsize, procmem, maxproc);
	bufinit();
	fstabinit();
	pagemap_init();
	create_init();

	/* runtime configurable, defaults to build time setting */
	ticks_per_dsecond = TICKSPERSEC / 10;

	kputs("Enabling interrupts ... ");
	__hard_ei();		/* Physical interrupts on */
	kputs("ok.\n");

	/* get the root device */
	root_dev = get_root_dev();

	/* finish building argv */
	complete_init();

	/* initialise hardware devices */
	device_init();

	/* Mount the root device */
	kprintf("Mounting root fs (root_dev=%d, r%c): ", root_dev,
		ro ? 'o' : 'w');

	if (fmount(root_dev, NULLINODE, ro))
		panic(PANIC_NOFILESYS);
	root = i_open(root_dev, ROOTINODE);
	if (!root)
		panic(PANIC_NOROOT);

	kputs("OK\n");

	udata.u_cwd = i_ref(root);
	udata.u_root = i_ref(root);
	rdtime32(&udata.u_time);
	exec_or_die();
}

Beispiel #2

Datei: start.c Projekt: Abioy/FUZIX

void fuzix_main(void)
{
	/* setup state */
	inint = false;
	udata.u_insys = true;

	ramtop = PROGTOP;

	tty_init();

	if (d_open(TTYDEV, 0) != 0)
		panic("no tty");

	/* Sign on messages (stashed in a buffer so we can bin them */
	kprintf((char *)bufpool[0].bf_data, uname_str);

#ifndef SWAPDEV
#ifdef PROC_SIZE
	maxproc = procmem / PROC_SIZE;
	/* Check we don't exceed the process table size limit */
	if (maxproc > PTABSIZE) {
		kprintf((char *)bufpool[1].bf_data, maxproc);
		maxproc = PTABSIZE;
	}
#else
	maxproc = PTABSIZE;
#endif
#else
	maxproc = PTABSIZE;
#endif
	/* Parameters message */
	kprintf((char *)bufpool[2].bf_data, ramsize, procmem, maxproc);
	/* Now blow away the strings */
	bufinit();
	pagemap_init();

	create_init();
        kprintf("%x:%x\n", udata.u_page, udata.u_page2);
        kprintf("%x:%x\n", udata.u_ptab->p_page, udata.u_ptab->p_page2);
	kputs("Enabling interrupts ... ");
        ei();
	kputs("ok.\n");

	/* initialise hardware devices */
	device_init();

	root_dev = DEFAULT_ROOT;
	if (cmdline && *cmdline) {
		while (*cmdline == ' ')
			++cmdline;
		root_dev = *cmdline - '0';
	} else {
		kputs("bootdev: ");
		udata.u_base = bootline;
		udata.u_sysio = 1;
		udata.u_count = 2;
		udata.u_euid = 0;	/* Always begin as superuser */

		cdread(TTYDEV, O_RDONLY);	/* read root filesystem name from tty */
		if (*bootline >= '0')
			root_dev = *bootline - '0';
	}

	/* Mount the root device */
	kprintf("Mounting root fs (root_dev=%d): ", root_dev);

	if (fmount(root_dev, NULLINODE, 0))
		panic("no filesys");
	root = i_open(root_dev, ROOTINODE);
	if (!root)
		panic("no root");

	kputs("OK\n");

	i_ref(udata.u_cwd = root);
	i_ref(udata.u_root = root);
	rdtime32(&udata.u_time);
	exec_or_die();
}