Rename min.c -> uimin.c, max.c -> uimax.c in libkern.

branches: 1.24.60; 1.24.62;
Add memset to libkern on vax, moving existing memset.S to src/common.

While kernel source code is supposed to use <machine/macros.h> via
<sys/param.h> and pick an inline asm version from there, gcc itself
can generate direct calls to memset() for structure initialization, so
the symbol must be provided.

Fixes INSTALL kernel, for which -Os caused gcc to use memset() call to
initialize a struct in uvm_fault_internal().

branches: 1.23.2;
Move that majority of the 'SRCS+= foo.c' into the main Makefile.libkern.
Any .S files added by the arch/*/Makefile.inc cause the .c file to
be excluded.
Specific exclusions added using NO_SRCS to match previous files.
At least sparc, sparc64, i386, amd64 and vax GENERIC still build.
(There is a fubar with the naming of the byte-swap files ...)

Split the lines that add .c to SRCS from those that add .S
No changes (apart from the order) intended.

Back out the addition of memset.c to the vax libkern, and instead do
as tsutsui@ suggested, and include <sys/param.h> in sha2.c instead.
On the vax, this causes <machine/macros.h> to be included, and it contains
that machine's memset() macro+inline.

Add memset.c, so that the references from sha2.c can be satisfied, and
so that the kernel and puffs applications can link again.

branches: 1.19.32; 1.19.48;
Include byte_swap_[24].c for kernels compiled with -O0

branches: 1.18.26; 1.18.30; 1.18.32;
merge ktrace-lwp.

branches: 1.17.16;
Include the C versions of the string instructions.
Replace blkcpy() with a version that can handle overlapping data areas.

branches: 1.16.6;
Need strtoul() also.

Upon further reflection, move udiv/urem to libkern and out of vax/vax.

Add __blkcpy() and __blkset() (renamed/modified from __blkclr()) to
libkern.

branches: 1.13.2; 1.13.4;
Add a strcasecmp(), modified from chopps's strncasecmp().

We need strncasecmp.c now.

branches: 1.11.8; 1.11.18;
Move the bswap functions from libutil to libc (this bups the
minor of libc and the major of libutil). For little-endian architectures
merge the bnswap() assembly versions with nto* and hton* using symbols
aliasing. Use symbol renaming for the bswap function in this case to avoid
namespace pollution.
Declare bswap* in machine/bswap.h, not machine/endian.h. For little-endian
machines, common code for inline macros go in machine/byte_swap.h
Sync libkern with libc.
Adjust #include in kernel sources for machine/bswap.h.

Lots of kernlib functions rewritten as inline macros.

Move random.S from kernel.

add rules like those in libc to build strchr() and strrchr() (the latter
is being added to libkern by this commit). remove strchr.c from
archs' Makefile.inc files to go along with this. (If an arch has
a .S version, it should be copied down and added to the apropriate
Makefile.inc.)

add memchr() to libkern

Add byte-swapping functions (bswap16, bswap32, bswap64) to libkern.
Only assembly version for i386 bswap16 and bswap32 for now (bswap64 uses
bswap32). Contribution of assembly versions of these are welcome.
Add byte-swapping of ext2fs metadata for big-endian systems.
Tested on i386 and sparc.

branches: 1.5.8;
add strchr() to libkern. strchr.c copied from libc's "index.c", but with
appropriate definitions so that it'll build strchr(), and so that it builds
correctly in libkern (needed to #define NULL).

Add machine-independent assertion-checking support. macros are:

assert() which always does assertion checking
unless "NDEBUG" is defined.

KASSERT() which does assertion checking if DIAGNOSTIC
is defined.

KDASSERT() which does assertion checking if DEBUG is
define. This macro exists for compatibility
with existing ports' assertion checking macros.
(Assertion checking is not typically an
"expensive" operation, and DIAGNOSTIC should be
used for inexpensive consistency checks.)

locc() is unused. Remove it from the machine-independent kernel interface.

add strncasecmp.c to ports' libkern Makefile.inc's. When adding a new
source file to libkern, it should be added to _ALL_ ports makefiles if
it is machine-independent and used by machine-independent code (in
this case adosfs). (There are several arguments that say that
strncasecmp should not be in libkern at all, and i think they're
good ones, but as long as ADOSFS needs it to link, it has to be here
for all architectures.)

Added VAX specific makefile. (In libkern/arch/vax)