Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

MFC 226145,226147,226148,226150,226151,226153,226157,226158,226164,226246,
226262,226329,226344,226608:
Merge most "infrastructure" changes to kdump to make other MFC's to add
new decodings, etc. easier:
- Some of the #defines or enums for which we auto-generate naming
functions may be wider than int, so use intmax_t throughout.
- Auto-generate kdump_subr.h.
- Use a switch statement instead of a giant if-else.
- Remove a lot of (void) casts.
- Bring ioctlname() in line with all the other *name() functions, which
actually print the name (or the numeric value, if they can't figure out
the correct name) instead of just returning a pointer to it. Also, since
ioctl numbers are not and probably never will be unique, drop support for
using a switch statement instead of an if/else chain.
- Mostly WARNS=6 clean.
- Update mkioctls to still work with both kdump and truss.

MFC r234058:
In kdump's mkioctls script, use '${CPP}' instead of hardcodedly using
'gcc -E'. This fixes building when WITH_CLANG_IS_CC is in effect.

Report by: Niclas Zeising <zeising@daemonic.se>

MFC r234060:
Since truss also uses kdump's mkioctls script, pass the value of ${CPP}
there too, similar to r234058.

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

Teach kdump to decode linux syscalls names too.

Fix bug introduced in my previous commit: the kernel always dump native
signal numbers, so no need to check the ABI in ktrpsig().

Suggested by: jhb
MFC after: 1 Month.

Build usr.bin/ with WARNS=6 by default.

Also add some missing $FreeBSD$ to keep svn happy.

Revert CLEANDEPFILES commit per ru@'s request; it does not really solve
the problem. The correct fix will follow.

Normally, when a header file is removed from the build (as i4b headers
were recently), a simple 'make cleandepend; make depend' is sufficient
to keep the tree buildable after a cvs update when doing incremental
builds.

However, kdump and truss use a script which searches for header files
that define ioctls, and generates C code that includes them. This
script will usually not need updating when a header file is removed,
so the normal dependency mechanism will not realize that it needs to
be re-run. One is therefore left with code that references dead files
but will only be removed by a full 'make clean', which defeats the
purpose of incremental builds.

To work around this, modify the cleandepend target in bsd.dep.mk to
also remove any files listed in a new variable named CLEANDEPFILES,
and modify kdump's and truss's Makefiles accordingly.

MFC after: 2 weeks

Change kdump to print more useful information, i.e. it changes from
32229 telnet CALL mmap(0,0x8000,0x3,0x1002,0xffffffff,0,0,0)
32229 telnet CALL open(0x2807bc28,0,0x1b6)
32229 telnet CALL socket(0x2,0x2,0)
to
32229 telnet CALL mmap(0,0x8000,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANON,0xffffffff,0,0,0)
32229 telnet CALL open(0x2807bc28,O_RDONLY,<unused>0x1b6)
32229 telnet CALL socket(PF_INET,SOCK_DGRAM,0)

David wanted to implement the suggestions which came up at the review from
arch@ too, but real life rejected this proposal. So I commit what we already
got and let another volunteer pick the remaining work from the ideas list.

Submitted by: "David Kirchner" <dpk@dpk.net>
Suggested by: FreeBSD ideas list page
Reviewed by: arch

Dependencies are delimited by space not tab.

Better fix for style.

Suggested by: ru (but modified a bit by markm)

Style tidy-up.

I now don't seem to be able to reproduce the -DNOCLEAN buildworld
breakage with ioctl.c. The .depend file should track dependencies
just fine, and the worst we can have is to miss new ioctls.

But I still think it's a good idea to have -DNOCLEAN build produce
the same ioctl.c as it would without -DNOCLEAN.

Prodded for a long time by: bde

Fix ioctl.c creation to deal with the depend case more properly.

Submitted by: Ruslan Ermilov <ru@sunbay.com>

remove .PHONY to avoid gratuitous rebuild of ioctl.c each time.

Approved by: sef

Make auto-generated ioctl.c to be always considered out of date
since it could potentially depend on any ${DESTDIR}/usr/include
preprocessor file. This fixes the broken -DNOCLEAN world build
I experienced yesterday.

Avoid hardcoding any paths and variables. The include directory must
now be specified on the command line. Accept a '-s' option which
controls whether a switch-statement is to be used instead of a series
of if-statements.

Replace cpp with gcc -E.

Discussed with: bde

Make sure DESTDIR is set in the environment of mkioctls. This fixes
the breakage people have encountered at certain times (for example
when the altq_*.h files were removed).

$FreeBSD$ tag added.

-I${.CURDIR}/../..

This commit was generated by cvs2svn to compensate for changes in r1590,
which included commits to RCS files with non-trunk default branches.

BSD 4.4 Lite Usr.bin Sources