/* Initialize the vnode structures and initialize each file system type. */
void
vfsinit(void)
{
int i;
struct vfsconf *vfsconflist;
int vfsconflistlen;
pool_init(&namei_pool, MAXPATHLEN, 0, 0, 0, "namei",
&pool_allocator_nointr);
/* Initialize the vnode table. */
vntblinit();
/* Initialize the vnode name cache. */
nchinit();
#ifdef WAPBL
wapbl_init();
#endif
/*
* Stop using vfsconf and maxvfsconf as a temporary storage,
* set them to their correct values now.
*/
vfsconflist = vfsconf;
vfsconflistlen = maxvfsconf;
vfsconf = NULL;
maxvfsconf = 0;
for (i = 0; i < vfsconflistlen; i++)
vfs_register(&vfsconflist[i]);
}
/*
* Initialization code.
* Called from cold start routine as
* soon as a stack and segmentation
* have been established.
* Functions:
* clear and free user core
* turn on clock
* hand craft 0th process
* call all initialization routines
* fork - process 0 to schedule
* - process 1 execute bootstrap
*/
int
main()
{
register struct proc *p;
register int i;
register struct fs *fs = NULL;
char inbuf[4];
char inch;
int s __attribute__((unused));
startup();
printf ("\n%s", version);
cpuidentify();
cnidentify();
/*
* Set up system process 0 (swapper).
*/
p = &proc[0];
p->p_addr = (size_t) &u;
p->p_stat = SRUN;
p->p_flag |= SLOAD | SSYS;
p->p_nice = NZERO;
u.u_procp = p; /* init user structure */
u.u_cmask = CMASK;
u.u_lastfile = -1;
for (i = 1; i < NGROUPS; i++)
u.u_groups[i] = NOGROUP;
for (i = 0; i < sizeof(u.u_rlimit)/sizeof(u.u_rlimit[0]); i++)
u.u_rlimit[i].rlim_cur = u.u_rlimit[i].rlim_max =
RLIM_INFINITY;
/* Initialize signal state for process 0 */
siginit (p);
/*
* Initialize tables, protocols, and set up well-known inodes.
*/
#ifdef LOG_ENABLED
loginit();
#endif
coutinit();
cinit();
pqinit();
ihinit();
bhinit();
binit();
nchinit();
clkstart();
s = spl0();
rdisk_init();
pipedev = rootdev = get_boot_device();
swapdev = get_swap_device();
/* Mount a root filesystem. */
for (;;) {
if(rootdev!=-1)
{
fs = mountfs (rootdev, (boothowto & RB_RDONLY) ? MNT_RDONLY : 0,
(struct inode*) 0);
}
if (fs)
break;
printf ("No root filesystem available!\n");
// rdisk_list_partitions(RDISK_FS);
retry:
printf ("Please enter device to boot from (press ? to list): ");
inch=0;
inbuf[0] = inbuf[1] = inbuf[2] = inbuf[3] = 0;
while((inch=cngetc()) != '\r')
{
switch(inch)
{
case '?':
printf("?\n");
rdisk_list_partitions(RDISK_FS);
printf ("Please enter device to boot from (press ? to list): ");
break;
default:
printf("%c",inch);
inbuf[0] = inbuf[1];
inbuf[1] = inbuf[2];
inbuf[2] = inbuf[3];
inbuf[3] = inch;
break;
}
}
inch = 0;
if(inbuf[0]=='r' && inbuf[1]=='d')
{
if(inbuf[2]>='0' && inbuf[2] < '0'+rdisk_num_disks())
{
if(inbuf[3]>='a' && inbuf[3]<='d')
{
rootdev=makedev(inbuf[2]-'0',inbuf[3]-'a'+1);
inch = 1;
}
}
} else if(inbuf[1]=='r' && inbuf[2]=='d') {
if(inbuf[3]>='0' && inbuf[3] < '0'+rdisk_num_disks())
{
rootdev=makedev(inbuf[3]-'0',0);
inch = 1;
}
} else if(inbuf[3] == 0) {
inch = 1;
}
if(inch==0)
{
printf("\nUnknown device.\n\n");
goto retry;
}
printf ("\n\n");
}
printf ("phys mem = %u kbytes\n", physmem / 1024);
printf ("user mem = %u kbytes\n", MAXMEM / 1024);
if(minor(rootdev)==0)
{
printf ("root dev = rd%d (%d,%d)\n",
major(rootdev),
major(rootdev), minor(rootdev)
);
} else {
printf ("root dev = rd%d%c (%d,%d)\n",
major(rootdev), 'a'+minor(rootdev)-1,
major(rootdev), minor(rootdev)
);
}
printf ("root size = %u kbytes\n", fs->fs_fsize * DEV_BSIZE / 1024);
mount[0].m_inodp = (struct inode*) 1; /* XXX */
mount_updname (fs, "/", "root", 1, 4);
time.tv_sec = fs->fs_time;
boottime = time;
/* Find a swap file. */
swapstart = 1;
while(swapdev == -1)
{
printf("Please enter swap device (press ? to list): ");
inbuf[0] = inbuf[1] = inbuf[2] = inbuf[3] = 0;
while((inch = cngetc())!='\r')
{
switch(inch)
{
case '?':
printf("?\n");
rdisk_list_partitions(RDISK_SWAP);
printf("Please enter swap device (press ? to list): ");
break;
default:
printf("%c",inch);
inbuf[0] = inbuf[1];
inbuf[1] = inbuf[2];
inbuf[2] = inbuf[3];
inbuf[3] = inch;
break;
}
}
inch = 0;
if(inbuf[0]=='r' && inbuf[1]=='d')
{
if(inbuf[2]>='0' && inbuf[2] < '0'+rdisk_num_disks())
{
if(inbuf[3]>='a' && inbuf[3]<='d')
{
swapdev=makedev(inbuf[2]-'0',inbuf[3]-'a'+1);
inch = 1;
}
}
} else if(inbuf[1]=='r' && inbuf[2]=='d') {
if(inbuf[3]>='0' && inbuf[3] < '0'+rdisk_num_disks())
{
swapdev=makedev(inbuf[3]-'0',0);
inch = 1;
}
}
if(minor(swapdev)!=0)
{
if(partition_type(swapdev)!=RDISK_SWAP)
{
printf("\nNot a swap partition!\n\n");
swapdev=-1;
}
}
}
nswap = rdsize(swapdev);
if(minor(swapdev)==0)
{
printf ("swap dev = rd%d (%d,%d)\n",
major(swapdev),
major(swapdev), minor(swapdev)
);
} else {
printf ("swap dev = rd%d%c (%d,%d)\n",
major(swapdev), 'a'+minor(swapdev)-1,
major(swapdev), minor(swapdev)
);
}
(*bdevsw[major(swapdev)].d_open)(swapdev, FREAD|FWRITE, S_IFBLK);
printf ("swap size = %u kbytes\n", nswap * DEV_BSIZE / 1024);
if (nswap <= 0)
panic ("zero swap size"); /* don't want to panic, but what ? */
mfree (swapmap, nswap, swapstart);
/* Kick off timeout driven events by calling first time. */
schedcpu (0);
/* Set up the root file system. */
rootdir = iget (rootdev, &mount[0].m_filsys, (ino_t) ROOTINO);
iunlock (rootdir);
u.u_cdir = iget (rootdev, &mount[0].m_filsys, (ino_t) ROOTINO);
iunlock (u.u_cdir);
u.u_rdir = NULL;
/*
* Make init process.
*/
if (newproc (0) == 0) {
/* Parent process with pid 0: swapper.
* No return from sched. */
sched();
}
/* Child process with pid 1: init. */
s = splhigh();
p = u.u_procp;
p->p_dsize = icodeend - icode;
p->p_daddr = USER_DATA_START;
p->p_ssize = 1024; /* one kbyte of stack */
p->p_saddr = USER_DATA_END - 1024;
bcopy ((caddr_t) icode, (caddr_t) USER_DATA_START, icodeend - icode);
/*
* return goes to location 0 of user init code
* just copied out.
*/
return 0;
}