for 64 bit mips platforms where we built userland largely as n32 by
default, build a handful of tools as n64 so they work properly.

unfortunately, they're also static as dynamic n64 has a problem.

of these tools pstat is probably the lowest hanging fruit to convert
to sysctl. systat would be close were it not for the netstat screen,
which includes netstat itself.

the rest are difficult to perhaps foolish.


the upside is that netstat, pmap and fstat all work properly now.

Define _KERNTYPES for things that need it.

use ecalloc

Default to -Wno-sign-compare -Wno-pointer-sign for clang.
Push -Wno-array-bounds down to the cases that depend on it.
Selectively disable warnings for 3rd party software or non-trivial
issues to be reviewed later to get clang -Werror to build most of the
tree.

remove no longer necessary lockdebug hacks.

branches: 1.3.4;
Add new Makefile knob, USE_FORT, which extends USE_SSP by turning on the
FORTIFY_SOURCE feature of libssp, thus checking the size of arguments to
various string and memory copy and set functions (as well as a few system
calls and other miscellany) where known at function entry. RedHat has
evidently built all "core system packages" with this option for some time.

This option should be used at the top of Makefiles (or Makefile.inc where
this is used for subdirectories) but after any setting of LIB.

This is only useful for userland code, and cannot be used in libc or in
any code which includes the libc internals, because it overrides certain
libc functions with macros. Some effort has been made to make USE_FORT=yes
work correctly for a full-system build by having the bsd.sys.mk logic
disable the feature where it should not be used (libc, libssp iteself,
the kernel) but no attempt has been made to build the entire system with
USE_FORT and doing so will doubtless expose numerous bugs and misfeatures.

Adjust the system build so that all programs and libraries that are setuid,
directly handle network data (including serial comm data), perform
authentication, or appear likely to have (or have a history of having)
data-driven bugs (e.g. file(1)) are built with USE_FORT=yes by default,
with the exception of libc, which cannot use USE_FORT and thus uses
only USE_SSP by default. Tested on i386 with no ill results; USE_FORT=no
per-directory or in a system build will disable if desired.

Make pmap work on LOCKDEBUG *and* non-LOCKDEBUG kernels (previously it
would fail in spectacular ways on LOCKDEBUG kernels) by compiling the
groveler code twice (the second time with LOCKDEBUG defined so that
the appropriate structures get larger in the right way). We currently
decide if we are operating on a kernel with LOCKDEBUG enabled if the
kernel's vm_map has referential integrity between a few pointers
and/or values.

Also, if you use more than one -v, you get a * on a line by itself in
between gaps in entries. It makes finding gaps much easier visually.

Move pmap(1) to /usr/bin (from /usr/sbin) where it belongs.