Commit Graph

43 Commits

Author SHA1 Message Date
Robert Watson
3de213cc00 Add a new 'why' argument to kdb_enter(), and a set of constants to use
for that argument.  This will allow DDB to detect the broad category of
reason why the debugger has been entered, which it can use for the
purposes of deciding which DDB script to run.

Assign approximate why values to all current consumers of the
kdb_enter() interface.
2007-12-25 17:52:02 +00:00
Hidetoshi Shimokawa
ff038e3a82 We don't need to call dcons_poll event handlers if KDB is not active.
Approved by: re (kensmith)
2007-08-17 05:32:39 +00:00
Hidetoshi Shimokawa
40ca0d5755 - Don't force to be the GDB port since dcons(4) is in GENERIC now.
To enable the GDB port of dcons(4), you need to put
  dcons_gdb=1
in /boot/loader.conf.
2007-06-11 04:08:50 +00:00
Hidetoshi Shimokawa
55f84274e3 Don't invalidate dcons buffer on shutdown.
We would like to keep connection after halt.
2007-06-08 08:23:14 +00:00
Hidetoshi Shimokawa
293b847542 Add the address of IDT in the configuration ROM. (i386/amd64 only)
A change to dconschat(8) will follow so that it can bomb
this address over FireWire to reset a wedged system.

Though this method is just a hack and far from perfection,
it should be useful if you don't want to go machine room
just to reset or to power-cycle a machine without
remote-managed power supply.  And much better than doing:
# fwcontrol -m target-eui64
# dd if=/dev/zero of=/dev/fwmem0.2 bs=1m
2007-06-08 04:33:25 +00:00
Hidetoshi Shimokawa
c8dde64562 Replace breakpoint() with kdb_enter(). 2007-06-08 03:05:57 +00:00
Hidetoshi Shimokawa
9953c34ca6 Poll bus resets on FireWire while kdb/gdb is active.
Now, it's safe to call the fwohci interrupt(polling) routine while ddb/gdb
is active. After this change, a dcons connnection over FireWire can survive
bus resets even in kernel debugger.

This means that it is not too late to plug a FireWire cable after a panic
to investigate the problem.

Actually there is a small window(between a jump to kernel from loader and
initialization of dcons_crom) in which no one can take care of a bus reset.
Except that window, firewire console should keep working
from loader to reboot even with a panic and a bus reset.
(as far as you enable LOADER_FIREWIRE_SUPPORT)
2007-06-08 00:54:44 +00:00
Hidetoshi Shimokawa
3080596e7f We should better ignore a break on gdb port if gdb is not enabled. 2007-05-28 02:20:40 +00:00
Hidetoshi Shimokawa
db72757973 Change default value of hw.firewire.dcons_crom.force_console to 0
for least astonishment.

MFC after: 3 days
2007-05-27 14:00:34 +00:00
Hidetoshi Shimokawa
207bcebe4b Make compile without GDB option.
MFC after: 3 days
2007-05-27 13:58:43 +00:00
Hidetoshi Shimokawa
10f39c7d37 Include stand.h for loader.
MFC after: 3 days
2007-05-25 05:00:39 +00:00
Robert Watson
acd3428b7d Sweep kernel replacing suser(9) calls with priv(9) calls, assigning
specific privilege names to a broad range of privileges.  These may
require some future tweaking.

Sponsored by:           nCircle Network Security, Inc.
Obtained from:          TrustedBSD Project
Discussed on:           arch@
Reviewed (at least in part) by: mlaier, jmg, pjd, bde, ceri,
                        Alex Lyashkov <umka at sevcity dot net>,
                        Skip Ford <skip dot ford at verizon dot net>,
                        Antoine Brodin <antoine dot brodin at laposte dot net>
2006-11-06 13:42:10 +00:00
Poul-Henning Kamp
a58a1ea03d Convert to new console interface. 2006-05-26 13:51:38 +00:00
Poul-Henning Kamp
9b188af13c Eliminate gdb_checkc member from GDB_DBGPORT(), it is never used.
Use polling behaviour for gdb_getc() where convenient, this edges us
closer to the console code.
2006-05-26 11:54:32 +00:00
Poul-Henning Kamp
8a7f77816e Use ttyalloc() instead of ttymalloc() 2006-01-04 09:20:41 +00:00
Ruslan Ermilov
342ed5d948 Fix -Wundef warnings found when compiling i386 LINT, GENERIC and
custom kernels.
2005-12-05 11:58:35 +00:00
Poul-Henning Kamp
7423b2b40c Make ttyconsolemode() call ttsetwater() so that drivers don't have to. 2005-10-16 20:58:22 +00:00
Warner Losh
098ca2bda9 Start each of the license/copyright comments with /*-, minor shuffle of lines 2005-01-06 01:43:34 +00:00
Hidetoshi Shimokawa
520d7d186b Use dcons buffer passed by loader on amd64. 2004-10-28 12:18:22 +00:00
Hidetoshi Shimokawa
c751e6f0fa - Use quad_t for dcons buffer address and size.
- Allow read/write access to dcons buffer passed by loader(8).
2004-10-24 12:41:04 +00:00
Hidetoshi Shimokawa
8ffa2e7954 Check _BOOT flag. 2004-10-22 15:03:22 +00:00
Poul-Henning Kamp
95bc568977 Add new function ttyinitmode() which sets our systemwide default
modes on a tty structure.

Both the ".init" and the current settings are initialized allowing
the function to be used both at attach and open time.

The function takes an argument to decide if echoing should be enabled.
Echoing should not be enabled for regular physical serial ports
unless they are consoles, in which case they should be configured
by ttyconsolemode() instead.

Use the new function throughout.
2004-10-18 21:51:27 +00:00
Hidetoshi Shimokawa
370f9086a6 Fix warnings on non-i386 arch.
Submitted by: keramida
2004-10-14 00:21:32 +00:00
Hidetoshi Shimokawa
31a5877786 - Split dcons core code and OS dependent code.
- Implement dcons_ischar() and dcons_load_buffer().
- If loader passed a dcons buffer address, keep using it.
	(We still need a patch to cheat memory management system.)
2004-10-13 05:38:42 +00:00
Hidetoshi Shimokawa
898b6e55d2 Invalidate dcons buffer on shutdown. 2004-09-26 01:15:38 +00:00
Hidetoshi Shimokawa
5a11c2d9ea Sync with DragonFly BSD. 2004-09-24 12:43:57 +00:00
Poul-Henning Kamp
672c05d49c Preparation commit for the tty cleanups that will follow in the near
future:

rename ttyopen() -> tty_open() and ttyclose() -> tty_close().

We need the ttyopen() and ttyclose() for the new generic cdevsw
functions for tty devices in order to have consistent naming.
2004-07-15 20:47:41 +00:00
Poul-Henning Kamp
3e019deaed Do a pass over all modules in the kernel and make them return EOPNOTSUPP
for unknown events.

A number of modules return EINVAL in this instance, and I have left
those alone for now and instead taught MOD_QUIESCE to accept this
as "didn't do anything".
2004-07-15 08:26:07 +00:00
Hidetoshi Shimokawa
20021e6afd Re-enable debugger port. 2004-07-13 09:41:45 +00:00
Marcel Moolenaar
ed9c21cd74 Update for the KDB framework:
o  Use kdb_alt_break() to handle the alternate break sequence instead
   of handcoding it here.
o  Remove GDB kluges to make this driver work with the pre-KDB remote
   GDB code.
o  Call kdb_enter() instead of Debugger().

Note that with this commit the dcons(4) driver cannot be used for
remote debugging anymore. This driver has to use the new GDB debug
port interface instead. Such has not been done yet.
2004-07-10 21:02:17 +00:00
Poul-Henning Kamp
f3732fd15b Second half of the dev_t cleanup.
The big lines are:
	NODEV -> NULL
	NOUDEV -> NODEV
	udev_t -> dev_t
	udev2dev() -> findcdev()

Various minor adjustments including handling of userland access to kernel
space struct cdev etc.
2004-06-17 17:16:53 +00:00
Poul-Henning Kamp
89c9c53da0 Do the dreaded s/dev_t/struct cdev */
Bump __FreeBSD_version accordingly.
2004-06-16 09:47:26 +00:00
Poul-Henning Kamp
2140d01b27 Machine generated patch which changes linedisc calls from accessing
linesw[] directly to using the ttyld...() functions

The ttyld...() functions ar inline so there is no performance hit.
2004-06-04 16:02:56 +00:00
Poul-Henning Kamp
138fbf675a Gainfully employ the new ttyioctl in the trivial cases. 2004-06-01 13:49:28 +00:00
Poul-Henning Kamp
a1cda79464 There is no need to explicitly call ttwakeup() and ttwwakeup() after
ttyclose() has been called.  It's already been done once by ttyclose,
and probably once by the line-discipline too.
2004-06-01 11:38:06 +00:00
Poul-Henning Kamp
bda4474a59 ttyclose() increments t_gen. Remove redundant increments in drivers. 2004-06-01 10:15:56 +00:00
Poul-Henning Kamp
fe12f24bb0 Add missing <sys/module.h> includes 2004-05-30 20:08:47 +00:00
Poul-Henning Kamp
dc08ffec87 Device megapatch 4/6:
Introduce d_version field in struct cdevsw, this must always be
initialized to D_VERSION.

Flip sense of D_NOGIANT flag to D_NEEDGIANT, this involves removing
four D_NOGIANT flags and adding 145 D_NEEDGIANT flags.
2004-02-21 21:10:55 +00:00
Poul-Henning Kamp
8e1f1df080 Device megapatch 3/6:
Add missing D_TTY flags to various drivers.

Complete asserts that dev_t's passed to ttyread(), ttywrite(),
ttypoll() and ttykqwrite() have (d_flags & D_TTY) and a struct tty
pointer.

Make ttyread(), ttywrite(), ttypoll() and ttykqwrite() the default
cdevsw methods for D_TTY drivers and remove the explicit initializations
in various drivers cdevsw structures.
2004-02-21 20:41:11 +00:00
Poul-Henning Kamp
c9c7976f7f Device megapatch 1/6:
Free approx 86 major numbers with a mostly automatically generated patch.

A number of strategic drivers have been left behind by caution, and a few
because they still (ab)use their major number.
2004-02-21 19:42:58 +00:00
Hidetoshi Shimokawa
19b3bba3e5 - Clean up global data.
- Force dcons to be the high-level console after dcons_crom
	has been attached.
- Add a tunable to be the high-level console.
2004-02-16 07:25:46 +00:00
Hidetoshi Shimokawa
ddce43e1cf Move post dmamap_load processes into the callback function. 2003-11-08 16:26:22 +00:00
Hidetoshi Shimokawa
869093b15d Add dumb console driver and related bits.
dcons(4): very simple console and gdb port driver
dcons_crom(4): FireWire attachment
dconschat(8): User interface to dcons

Tested with: i386, i386-PAE, and sparc64.
2003-10-24 15:44:10 +00:00