void
cpu_reboot(
int howto
, char *bootstr
)
)
function handles final system shutdown, and either halts or reboots
the system.
The exact action to be taken is determined by the flags passed in
howto
and by whether or not the system has finished autoconfiguration.
If the system has finished autoconfiguration,
cpu_reboot()
does the following:
howto
argument.
)
and the
RB_NOSYNC
flag is not set in
howto
,
syncs and unmounts the system disks by calling
vfs_shutdown(9)
and sets the time of day clock by calling
resettodr(9).
RB_DUMP
is set in
howto
,
but
RB_HALT
is not), saves a system crash dump.
RB_HALT
is set in
howto
,
halts the system.
Otherwise, reboots the system.
If the system has not finished autoconfiguration,
cpu_reboot()
runs any shutdown hooks by calling
doshutdownhooks(9),
prints a message, and halts the system.
If
RB_STRING
is set in
howto
,
then the parameter
bootstr
is passed to the system boot loader on some ports.