add support COMPAT_LINUX for aarch64

use proper arg functions, remove bogus ones.

New versions of linux on arm and others have both socketcall and separate
syscalls...

add sendmmsg and recvmmsg

handle accept4 for i386

Rename ipcall/socketcall specific defines to avoid conflict with
syscalls definitions. No functional changes.

Add a new linux_msghdr structure, as its size differs on 64bit archs.
Do the needed conversions in sendmsg/recvmsg syscalls, and adjust
their definitions accordingly.

Remove clause 3 and 4 from TNF licenses

Convert all the system call entry points from:
int foo(struct lwp *l, void *v, register_t *retval)
to:
int foo(struct lwp *l, const struct foo_args *uap, register_t *retval)
Fixup compat code

Convert all the system call entry points from:
int foo(struct lwp *l, void *v, register_t *retval)
to:
int foo(struct lwp *l, const struct foo_args *uap, register_t *retval)
Fixup compat code to not write into 'uap' and (in some cases) to actually
pass a correctly formatted 'uap' structure with the right name to the
next routine.
A few 'compat' routines that just call standard ones have been deleted.
All the 'compat' code compiles (along with the kernels required to test
build it).
98% done by automated scripts.

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Remove all the __P

Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

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

merge ktrace-lwp.

First work on COMPAT_LINUX/amd64
Process startup and dynamiclinking work, but processes hang due to
Linux arch_prctl(2) not being really supported yet.

nuke trailing whitespace

Merge the nathanw_sa branch.

Do address family (AF_*) number translation for socket system calls which
pass socket address in our or out. This makes Linux programs using IPv6
working under emulation. This addresses kern/13279 by

Do address family (AF_*) number translation for socket system calls which
pass socket address in our or out. This makes Linux programs using IPv6
working under emulation. This addresses kern/13279 by Jun-ichiro itojun Hagino.

Change sendmsg()/recvmsg() to expect the control information
to be passed the standard way (not 4.3BSD one, imlied by compat_43 code
or MSG_COMPAT). Linux uses different (arguably broken) CMSG_ALIGN() on some
architectures unfortunately, that would need to be handled eventually.

Also provide some other trivial stubs (like linux_sys_send()) to avoid
unneeded dependance on uipc_syscalls_43.c.

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commit fix to PR7072: emulate linux non-blocking connect behavior more correctly

Assign my copyright to TNF. Merge with others were appropriate.
Regen syscall files after script change.

Attempt to fix the mess.

Move compat/linux/linux_socketcall.h to multiarch. Defines for the socketcall multiplexer.

Added Linux compat code.