Correct a comment. There is no fn `kprintf'

Clean up various compiler warnings. Most (if not all) were benign

Reviewed by: bde

KGDB is dead. It may come back one day if somebody does it.

Bill Fenner <fenner@parc.xerox.com> comes up with a better fix to the
debugger_on_panic stuff.

Ok, now this is correct (even simple fixes sometimes ain't so simple :)

Fix bogus last commit - debugger_on_panic was referenced even when
not defined. Another change clearly committed without testing! :-(

Remove all traces of KADB
add sysctl
debug.debugger_on_panic: 1
if DDB or KGDB is defined.

Requested by: davidg

Import 4.4BSD-Lite2 onto the vendor branch, note that in the kernel, all
files are off the vendor branch, so this should not change anything.

A "U" marker generally means that the file was not chang

Import 4.4BSD-Lite2 onto the vendor branch, note that in the kernel, all
files are off the vendor branch, so this should not change anything.

A "U" marker generally means that the file was not changed in between
the 4.4Lite and Lite-2 releases, and does not need a merge. "C" generally
means that there was a change.
[note new unused (in this form) syscalls.conf, to be 'cvs rm'ed]

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Add a new option: DDB_UNATTENDED. Stops machine dropping into DDB
when it panics, but leaving activation of DDB from the console
unaffected.

Kernel printf now returns int.

Restored newline at the end of panic messages.

Remove %r hack, we have vprintf() now.
Add %D for "dumping" data. Good for ethernet/MAC addresses and such.
Handle 1 < radix < 37.

bounds check the radix, just in case.

Imake %.*s really work. :-(

Make result of sprintf zero terminated. Fix %r for sprintf case.

Make %.*s work.

Add support for %.{int|*}s

Get rid of two and a half printf in the kernel.
Add more features to the one remaining to handle the job:
+ signed quantity.
# alternate format
- left padding
* read width as next arg.
n numeric

Get rid of two and a half printf in the kernel.
Add more features to the one remaining to handle the job:
+ signed quantity.
# alternate format
- left padding
* read width as next arg.
n numeric in (argument specified) default radix.

Fix the DDB debugger to use these.
Use vprintf in debug routine in pcvt.

The warnings from gcc may become more wrong and intolerable because
of this.

Warning: I have not checked the entire source for unsupported or
changed constructs, but generally belive that there are only a few.

Suggested by: bde

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Convert DDB to new-style option.

A Major staticize sweep. Generates a couple of warnings that I'll deal
with later.
A number of unused vars removed.
A number of unused procs removed or #ifdefed.

Killed some gratuitous #include's.

Woops, I committed the wrong version of the diff in the last rev.

Made msgbuf range checking more robust and clean.

Restore check for msg_bufx being negative. Changed if() expression to be
in Lite2 style.

Convert %p to 0x%x instead of to 0x%8x. The latter gives blank padding
in the wrong place. Blank padding in the right place or zero padding
would be inconsistent with user mode.

Put case 'p' in al

Convert %p to 0x%x instead of to 0x%8x. The latter gives blank padding
in the wrong place. Blank padding in the right place or zero padding
would be inconsistent with user mode.

Put case 'p' in alphabetical order.

Implement %p in sprintf() too. I'd like only a single, more complete
printf() core, perhaps one based on vsnprintf().

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