void
cmdline_parse(void)
{
char *p;
/*
* If the boot commandline has been manually entered, it
* may end with a '\r' character.
*/
for (p = bootargs; *p != '\0'; p++)
;
if (p != bootargs)
if (*--p == '\r')
*p = '\0';
/*
* Skip boot device ``foo(ctrl,dev,lun)'' and filename,
* i.e. eat everything until whitespace.
*/
p = stws(bootargs);
while (*p != '\0') {
if (*p++ == '-')
while (*p != ' ' && *p != '\0')
switch (*p++) {
case 'a':
boothowto |= RB_ASKNAME;
break;
case 'b':
boothowto |= RB_KDB;
break;
case 'c':
boothowto |= RB_CONFIG;
break;
case 's':
boothowto |= RB_SINGLE;
break;
}
p = stws(p);
}
/*
* Now parse the boot device. We are only interested in the
* device type, since the PROM has cracked the controller, unit
* and partition numbers for us already, and we do not care about
* our own filename...
*
* Actually we rely upon the fact that all device strings are
* exactly 4 characters long, and appears at the beginning of the
* commandline, so we can simply use its numerical value, as a
* word, to tell device types apart.
*/
bcopy(bootargs, &bootdevtype, sizeof(int));
}
void
cmdline_parse(void)
{
char *p;
/*
* If the boot commandline has been manually entered, it
* may end with a '\r' character.
*/
for (p = bootargs; *p != '\0'; p++)
;
if (p != bootargs)
if (*--p == '\r')
*p = '\0';
/*
* Skip boot device ``foo(ctrl,dev,lun)'' and filename,
* i.e. eat everything until whitespace.
*/
p = stws(bootargs);
while (*p != '\0') {
if (*p++ == '-')
while (*p != ' ' && *p != '\0')
switch (*p++) {
case 'a':
boothowto |= RB_ASKNAME;
break;
case 'b':
boothowto |= RB_KDB;
break;
case 'c':
boothowto |= RB_CONFIG;
break;
case 's':
boothowto |= RB_SINGLE;
break;
}
p = stws(p);
}
/*
* Now parse the boot device. We are only interested in the
* device type, since the PROM has cracked the controller, unit
* and partition numbers for us already, and we do not care about
* our own filename...
*
* However, in the sd() or st() cases, we need to figure out the
* SCSI controller name (if not the default one) and address, if
* provided.
*
* Note that we will override bootdev at this point. If no boot
* controller number or address was provided, bootdev will be set
* to zero anyway.
*/
if (memcmp(bootargs, "sd", 2) == 0 ||
memcmp(bootargs, "st", 2) == 0) {
/*
* Either
* sd(bootdev,bootunit,bootlun)
* or
* sd(ctrl(bootdev,id),bootunit,bootlun)
* We already know bootdev, bootunit and bootlun.
* All we need here is to figure out the controller type
* and address.
*/
if (bootargs[7] == '(') {
bcopy(bootargs + 3, &bootdevtype, sizeof(uint32_t));
bootdev = strtoi(bootargs + 8);
}
} else {
bcopy(bootargs, &bootdevtype, sizeof(int));
bootdev = strtoi(bootargs + 5);
}
/* fill the holes */
bootctrlpaddr = platform->get_boot_device(&bootdevtype, bootdev);
}
