ddb: Some minor adjustments.

ddb(4): Remove use of deprecated "%r" radix format.

Use internal helpers like for "%z" to print numbers.

Taken-from: NetBSD (with adaptations by swildner)

kernel - add 'i' command to ddb

* Add the 'i' command, which just issues a cpu_invltlb() on the
current cpu. Useful when testing MMU/PMAP issues.

kernel/ddb: Fix type mismatch in different objects.

Found while playing with LTO.

While there, use true/false types from <sys/types.h>.

kernel - Change where dump context is saved

* Save the dump context a little earlier in the panic to improve
chances that post-morten kgdb can print the stack backtrace.

* Use a function union fo

kernel - Change where dump context is saved

* Save the dump context a little earlier in the panic to improve
chances that post-morten kgdb can print the stack backtrace.

* Use a function union for variable arguments calls from ddb>

show more ...

kernel: Add prototypes for setjmp()/longjmp() to <sys/systm.h>.

Used by ddb and vinum. Remove the inclusion of the <setjmp.h> userspace
header.

kernel - Fix live lock in vfs_conf.c mountroot>

* The mountroot> prompt calls cngetc() to process user input. However, this
function hard loops and can prevent other kernel threads from running o

kernel - Fix live lock in vfs_conf.c mountroot>

* The mountroot> prompt calls cngetc() to process user input. However, this
function hard loops and can prevent other kernel threads from running on
the current cpu.

* Rearrange the code to use cncheckc() and a 1/25 second tsleep().

* Fix a bug in the syscons code where NOKEY was not being properly returned
as documented. Modify all use cases to handle NOKEY. This allows us to
differentiate between a keyboard present but not key pressed and a keyboard
not present.

* Pull the automatic polling mode code out of cncheckc() (or more precisely,
out of sccncheckc()) and add a new cnpoll() API function to set it manually.

This fixes issues in vfs_conf when normal keyboard processing interrupts
are operational and cncheckc() is used with a tsleep() delay. The normal
processing interrupt wound up eating the keystrokes so the cncheckc()
basically always failed.

cncheckc() in general also always had a small window of opportunity where
a keystroke could be lost due loops on it.

* Call cnpoll() in various places, such as when entering the debugger,
asking for input in vfs_conf, and a few other places.

show more ...

kernel/ddb: Use NULL for pointers.

kernel/ddb: Fix formatting when printing command tables.

FreeBSD's r163134:

Fixed formatting of printing of command tables. With the default max
output width of 79, only 6 columns of width 12 each

kernel/ddb: Fix formatting when printing command tables.

FreeBSD's r163134:

Fixed formatting of printing of command tables. With the default max
output width of 79, only 6 columns of width 12 each fit, but 7 columns
were printed.

The fix is to pass the width of the next output to db_end_line() and
not assume there that this width is always 1.

Related unfixed bugs:
- 1 character is wasted for a space after the last column
- suppression of trailing spaces used to limit the misformatting, but
seems to have been lost
- in db_examine(), the width of the next output is not known and is
still assumed to be 1.

Taken-from: FreeBSD

show more ...

kernel: Use NULL for pointers.

kernel: Shuffle some initialization around to avoid forward declarations.

Initial import of binutils 2.22 on the new vendor branch

Future versions of binutils will also reside on this branch rather
than continuing to create new binutils branches for each new version.

Fix numerous compiler warnings and format conversion specifiers.

Generally use NULL instead of explicitly casting 0 to some pointer type.

Changes to consdev - low level kernel console initialization.

The consdev API was calling make_dev() extremely early in the boot sequence,
but except for a little code in syscons didn't really need

Changes to consdev - low level kernel console initialization.

The consdev API was calling make_dev() extremely early in the boot sequence,
but except for a little code in syscons didn't really need the abstraction
to operate the kernel console during boot.

Change the consdev API to no longer require the use the device abstraction
to operate. This will allow the device ABI (cdev_t) to be converted to
use SYSREF.

show more ...

Change the kernel dev_t, representing a pointer to a specinfo structure,
to cdev_t. Change struct specinfo to struct cdev. The name 'cdev' was taken
from FreeBSD. Remove the dev_t shim for the ker

Change the kernel dev_t, representing a pointer to a specinfo structure,
to cdev_t. Change struct specinfo to struct cdev. The name 'cdev' was taken
from FreeBSD. Remove the dev_t shim for the kernel.

This commit generally removes the overloading of 'dev_t' between userland and
the kernel.

Also fix a bug in libkvm where a kernel dev_t (now cdev_t) was not being
properly converted to a userland dev_t.

show more ...

Rename the kernel NODEV to NOCDEV to avoid conflicts with the userland NODEV.

* Ansify function definitions.

* Remove (void) casts for discarded return values.

static != extern

Allow numbers to be used after a letter in the modifier section after a
command.

Fully synchronize sys/boot from FreeBSD-5.x, but add / to the module path
so /kernel will be found and loaded instead of /boot/kernel. This will
give us all the capabilities of the FreeBSD-5 boot co

Fully synchronize sys/boot from FreeBSD-5.x, but add / to the module path
so /kernel will be found and loaded instead of /boot/kernel. This will
give us all the capabilities of the FreeBSD-5 boot code including AMD64 and
ELF64 support.

As part of this work, rather then try to adjust ufs/fs.h and friends to get
UFS2 info I instead copied the fs.h and friends from FreeBSD-5 into the
sys/boot subtree

Additionally, import Peter Wemm's linker set improvements from FreeBSD-5.x.
They happen to be compatible with GCC 2.95.x and it allows very few changes
to be made to the boot code.

Additionally import a number of other elements from FreeBSD-5 including
sys/diskmbr.h separation.

show more ...

remove __P

DDB updates:

- add 'where' as an alias to 'trace'
- add db_print_backtrace() and backtrace() (machine-dependant)
- add 'reset' command

Register keyword removal

Approved by: Matt Dillon

Add the DragonFly cvs id and perform general cleanups on cvs/rcs/sccs ids. Most
ids have been removed from !lint sections and moved into comment sections.