Remove compat_osf1, discussed on tech-kern@.

ibcs2 is gone

compat/svr4* is gone - adapt

branches: 1.29.42;
Remove PECOFF/Win32 emulation.

Remove IRIX emulation

Remove Darwin, MACH and Mach-O support.

branches: 1.26.8;
Remove clause 3 and 4 from TNF licenses

branches: 1.25.4;
COMPAT_HPUX is gone

Verify that the system call is within the negative range before
deciding that it is a 'mach' system call.
XXX - shouldn't this translation only happen for certain emulations?

branches: 1.23.4;
compat linux32 depends on compat netbsd32, and thus needs
EMUL_FLAG_NETBSD32.

ok by manu

Handle aout m68k; from Izumi Tsutsui.

Add initial (but unfinished) COMPAT_LINUX32 for amd64. This is good enough so
that the i386 license manager part of amd64 version of Fluent works.

While I'm here, add SysV IPC to COMPAT_LINUX/amd64

ectx_find() failed to lookup the emulation context unless it happened
to be the first entry, effectively resetting context of all processes to
default emulation on every EMUL trace record

rewrite ectx_find() to fix this, using <sys/queue.h> LIST for readability

this fix should once and for all remove need to ever use -e option,
and makes kdump work properly for traces with processes under different
emulations

- add a new flags field to the emulation vector, with one user so far
EMUL_FLAG_NETBSD32. set EMUL_FLAG_NETBSD32 in any 32 bit on 64 bit
kernel emulation layers.
- if EMUL_FLAG_NETBSD32 is set, calculate the proper argument count.
(XXX: this should use register32_t, but that's not visible to all
builders of kdump...)

now netbsd32_ioctl(2) actually reports sane values, and other arguments
are mostly correctly printed (there are still some signed extension
issues with 32 bit numbers being displayed as "0xffffffff8xxxxxxx".)

Stop core dump if an ioctl trace has fewer than expected arguments.
- Check names of system calls (for special treatment) because emulations
might use different numbers.
- Report an error if arguments to -p or -m non-numeric.
- Just take last of -x and -Xvalue, stop -X0x80000000 being valid (core dumps).
- Keep 'last used' emulation_ctx at top of list, create on lookup (usually
EMUL anyway), delete when exit called (doesn't return).
- Slightly improve hack to get correct system call name in execve return
when emulation has changed.
- Rename global variables 'current'/'previous' to 'cur_emul'/'prev_emul'.
(TODO: save system call type (and maybe an argument) per pid so GIO trace
format can depend on the actual system call.)
Fixes part of PR sparc64/23473 - but system call arguments will still not be
displayed correctly.

kdump now displays Mach services names itself, including a table of
id/names in sys/compat/mach/mach_services_names.c

Remove ports and flags displays, the information is already in the message.

KNF:
- ansify
- no breaks after returns
- statics where needed
- no exit after errx

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22365, verified by myself.

Now properly display Mach traps

Added support for COMPAT_MACH

Provide hooks for signal number to name translation, and use them for kill
and PSIG.

XXX[1]: This shows that signal emulation ktrace is slightly busted: posted
signals should really be translated to the emulated ones instead of
producing ktrace records with the signal numbers of the native
emulation.
XXX[2]: There are other places where signal names can be displayed, but this
is not done yet.

reflect iric o32/n32 emulations

Now use IRIX errno translation instead of SVR4 errno translation

Added support for IRIX emulation

Add svr4_32 info.

Cosmetic fix so that RET record after CALL execve get the appropriate syscall
even if the emulation changed

teach kdump about compat/sunos32

adapt to *syscallnames[] change (it's now const char * const foo[]),
constify

ectx_sanify(): ditch utterly broken 'optimization', which caused incorrect
emulation structures to be used in every even case if default emulation
and emulation of process differed.

Bug found by Bill Studenmund.

branches: 1.3.2;
Add "pecoff" emulation.

branches: 1.2.2;
ectx_sanify(): if default_emul is not set, use netbsd emulation (may happen when user passes invalid
emulation name via -e argument)

put setemul(), ectx_* & appropriate structures to separate file, to make it
more easily sharable with ktruss(1)