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The kernel keeps track of task and thread creation times by saving a
time stamp. Previously, the real-time clock was used for this. When
the real-time clock is changed, however, the reference frame for the
time stamps is lost. This surfaced in Hurd systems reporting
spuriously long uptimes.
Fix this by creating a boot-time clock and use it as reference frame
for the time stamps.
* kern/mach_clock.c (clock_boottime_offset): Create clock by keeping
track of the offset from the real-time.
(clock_boottime_update): New function.
(record_time_stamp): Use the boot-time clock for time stamps.
(read_time_stamp): New function to convert it back to real-time.
(host_set_time): Call `clock_boottime_update'.
* kern/mach_clock.h (record_time_stamp): Amend comment.
(read_time_stamp): New declaration.
* kern/task.c (task_info): Use `read_time_stamp'.
* kern/thread.c (thread_info): Likewise.
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* device/conf.h: Include <sys/types.h>, <mach/port.h>, <mach/vm_prot.h>.
Predefine struct io_req, io_req_t and io_return_t.
(dev_ops): Add explicit prototypes for d_open, d_close, d_read, d_write,
d_getstat, d_setstat, d_mmap, d_port_death.
(nulldev_open, nulldev_close, nulldev_read, nulldev_write,
nulldev_getstat, nulldev_setstat, nulldev_portdeath): Add prototypes.
(nomap): Fix prototype.
* device/dev_name.c (nulldev_open, nulldev_close, nulldev_read,
nulldev_write, nulldev_getstat, nulldev_setstat, nulldev_portdeath): New
functions.
(nomap): Fix prototype.
* device/ds_routines.c (dev_close): Pass 0 as flag parameter.
* device/kmsg.c (kmsgclose): Drop return value.
* device/kmsg.h (kmsgclose): Fix prototype.
* i386/i386at/com.c (comopen): Fix prototype.
(comclose): Fix prototype, drop return value.
(comread, comwrite): Fix prototype.
* i386/i386at/com.h (comopen, comclose, comread, comwrite): Fix
prototype.
* i386/i386at/conf.c (dev_ops): Use nulldev_open, nulldev_close,
nulldev_read, nulldev_write, nulldev_getstat, nulldev_setstat,
nulldev_portdeath where appropriate.
* i386/i386at/kd.c (kdclose, kdread, kdwrite, kdmmap): Fix prototype.
* i386/i386at/kd.h (kdclose, kdread, kdwrite, kdmmap): Likewise.
* i386/i386at/kd_event.c (kbdopen): Likewise.
* i386/i386at/kd_event.h (kbdopen): Likewise.
* i386/i386at/kd_mouse.c (mouseopen): Likewise.
* i386/i386at/kd_mouse.h (mouseopen): Likewise.
* i386/i386at/lpr.c (lpropen, lprclose, lprread, lprwrite): Likewise.
* i386/i386at/lpr.h (lpropen, lprclose, lprread, lprwrite): Likewise.
* i386/i386at/mem.c (memmmap): Likewise.
* i386/i386at/mem.h (memmmap): Likewise.
* i386/i386at/model_dep.c (timemmap): Likewise.
* i386/i386at/model_dep.h (timemmap): Likewise.
* kern/mach_clock.c (timeopen, timeclose): Likewise.
* kern/mach_clock.h: Include <sys/types.h>, predefine struct io_req and
io_req_t.
(timeopen, timeclose): Fix prototype.
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* i386/Makefrag.am: Include i386/i386at/model_dep.h and i386/i386at/mem.h.
* i386/i386at/com.h (comgetstat, comsetstat): Declare as extern.
(comopen, comclose, comread, comwrite, comportdeath): Add prototypes.
* i386/i386at/conf.c: Include kern/mach_clock.h and i386at/model_dep.h.
(timeopen, timeclose, timemmap): Remove forward declarations.
(kdopen, kdclose, kdread, kdwrite, kdgetstat, kdsetstat, kdportdeath, kdmmap): Likewise.
(comopen, comclose, comread, comwrite, comportdeath, comgetstat, comsetstat): Likewise.
(lpropen, lprclose, lprread, lprwrite, lprportdeath, lprgetstat, lprsetstat): Likewise.
(kbdopen, kbdclose, kbdread, kbdgetstat, kbdsetstat): Likewise.
(mouseopen, mouseclose, mouseread, mousegetstat): Likewise.
(memmmap): Likewise.
(kmsgopen, kmsgclose, kmsgread, kmsggetstat): Likewise.
(hypcnopen, hypcnclose, hypcnread, hypcnwrite, hypcnportdeath, hypcngetstat, hypcnsetstat): Likewise.
Include i386at/kd.h.
Include i386at/com.h.
Include i386at/lpr.h.
Include i386at/kd_event.h.
Include i386at/kd_mouse.h.
Include i386at/mem.h.
Include device/kmsg.h.
Include xen/console.h.
* i386/i386at/kd.h: Include device/io_req.h.
(kdopen, kdclose, kdread, kdwrite, kdgetstat, kdsetstat, kdportdeath, kdmmap): Add prototypes.
* i386/i386at/kd_event.h (kbdopen, kbdclose, kbdread, kbdgetstat, kbdsetstat): Likewise.
* i386/i386at/kd_mouse.h (mouseopen, mouseclose, mouseread, mousegetstat): Likewise.
* i386/i386at/lpr.h (lpropen, lprclose, lprread, lprwrite, lprportdeath): Likewise.
(lprgetstat, lprsetstat): Declare as extern.
* i386/i386at/mem.h: New file.
Add copyright.
[_MEM_H_]: Add ifndef.
(memmmap): Add prototype.
* i386/i386at/model_dep.c: Include i386/i386at/model_dep.h.
(timemmap): Fix argument list.
* i386/i386at/model_dep.h: New file.
Add copyright.
[_MODEL_DEP_H_]: Add ifndef.
(timemmap): Add prototype.
* kern/mach_clock.h (timeopen, timeclose): Add prototypes.
* xen/console.h (hypcnopen, hypcnclose, hypcnread, hypcnwrite, hypcnportdeath, hypcngetstat, hypcnsetstat): Add prototypes.
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* kern/mach_clock.h (timer_func_t): New function type.
(struct timer_elt): Change fcn type to timer_func_t.
* i386/i386at/com.c (comstart): Cast `ttrstrt' to `timer_funct_t *' in
`timeout' call.
* i386/i386at/lpr.c (lprstart): Likewise,
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* device/chario.c (ttypush): Set parameter type to void * instead of
struct tty *, and implicitly cast the former into the latter instead.
* i386/i386at/com.c: Include <kern/mach_clock.h>.
(timeout, ttrstrt): Remove declarations.
(comtimer): Add unused void * parameter.
(comopen): Pass NULL to comtimer function.
* i386/i386at/kd.h (kd_belloff): Add unused void * parameter.
* i386/i386at/kd.c (timeout): Remove declaration.
(kd_belloff): Add unused void * parameter.
(feep, kdsetbell): Pass NULL to kd_belloff function.
* i386/i386at/lpr.c: Include <mach_clock.h>.
(timeout, ttrstrt): Remove declarations.
* kern/mach_clock.c (softclock, timeout, untimeout): Set parameter
type of fcn function pointer to void * instead of char *. Set type
of param to void * instead of char *.
* kern/mach_clock.h (timer_elt): Set parameter type of fcn member
to void * instead of char *. Set time of param member to void * instead
of char *.
(timeout): Set parameter type of fcn function pointer parameter to void
* instead of char *.
(untimeout): Likewise, set type of param parameter to void * instead of
char *.
* kern/sched_prim.c (sched_init): Remove cast of recompute_priorities.
Replace (char *)0 with NULL.
(thread_timeout): Set parameter type to void * instead of thread_t, and
implicitly cast the former into the latter instead.
(thread_timeout_setup): Remove cast of thread_timeout, cast
thread_depress_timeout into (void (*) (void*)). Remove cast of thread.
(thread_recompute_priorities): Add unused void * parameter.
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* kern/mach_clock.c (timeout): Make the `fcn' parameter take a void *
instead of char *.
* kern/mach_clock.h (timeout): Likewise.
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* kern/time_out.h: Remove file after having installed the missing bits
in...
* kern/mach_clock.h: ... here.
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* i386/i386/locore.h: New file.
* i386/i386/pcb.h: New file.
* i386/i386/pcb.c: Include `pcb.h'.
* i386/i386/pit.c (clkstart): Fix type of s into unsigned long.
* i386/i386/spl.h (spl0, splsched, splx, splsoftclock, splon, sploff)
(splhigh, splimp, spltty, splclock, setsoftclock): Add prototype.
* i386/i386at/kd_event.h: New file.
* i386/i386at/kd_event.c: Include `kd_event.h'.
* i386/i386at/kd_mouse.h: New file.
* i386/i386at/kd_mouse.c: Include `kd_mouse.h'.
(mouseclose): Fix call of `serial_mouse_close' function.
* i386/i386at/kd.c: Include `kd_event.h' and `kd_mouse.h'.
* i386/i386at/kd.h (splx, spltty): Remove prototypes.h
* i386/i386at/lpr.c: Likewise.
* ipc/mach_msg.c: Include `machine/locore.h' and `machine/pcb.h'.
* kern/mach_clock.h: New file.
* kern/mach_clock.c: Include `kern/queue.h', `kern/timer.h' and
`mach_clock.h'.
* kern/mach_factor.h: New file.
* kern/mach_factor.c: Include `mach_factor.h'.
* kern/sched_prim.c: Include `kern/mach_factor.h'.
* kern/thread.c: Include `machine/pcb.h'.
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