Use the signal trampoline version constants from <sys/signal.h>.

Remove compat_osf1, discussed on tech-kern@.

allow pcu_save() and pcu_discard() to be called on other threads,
ptrace needs to use it that way.

remove some dead code.

Cleanup and simplify PCU FP support. Nuke MDLWP_FPUSED.

Do a minor cleanup of alpha (this will make applying pullups post branching
easier).
u_int{8,16,32,64}_t -> uint{*}_t
Change all old-style definitions to C89 prototypes.
Whitespace cleanup.
Constific

Do a minor cleanup of alpha (this will make applying pullups post branching
easier).
u_int{8,16,32,64}_t -> uint{*}_t
Change all old-style definitions to C89 prototypes.
Whitespace cleanup.
Constification in db_disasm.c

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Switch alpha to use PCU to manage the FPU.
Tested by mhitch and review by rmind.

- Use lwp_getpcb() on Alpha.
- Replace and clean struct user usage, slightly simplify some code parts.
- Include sys/user.h in MD proc.h .

Wrap includes of opt* header files with _KERNEL_OPT. It is not entirely
clear to me that this will end up doing the right thing, because there
surely is a reason for the opt* headers.
Also, replace

Wrap includes of opt* header files with _KERNEL_OPT. It is not entirely
clear to me that this will end up doing the right thing, because there
surely is a reason for the opt* headers.
Also, replace one "ksyms.h" with <sys/ksyms.h>.

Fixes build problems when this is built as part of a module.

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Remove clause 3 and 4 from TNF licenses

Merge proc::p_mutex and proc::p_smutex into a single adaptive mutex, since
we no longer need to guard against access from hardware interrupt handlers.

Additionally, if cloning a process with CLONE_S

Merge proc::p_mutex and proc::p_smutex into a single adaptive mutex, since
we no longer need to guard against access from hardware interrupt handlers.

Additionally, if cloning a process with CLONE_SIGHAND, arrange to have the
child process share the parent's lock so that signal state may be kept in
sync. Partially addresses PR kern/37437.

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

Merge newlock2 to head.

merge ktrace-lwp.

The compat signal / signalvar headers are only needed under COMPAT_13
and COMPAT_OSF1, so make the header inclusion conditional as well.

Add missing <compat/...> includes

add more "const"

don't need signal trampolin version 1 if we just do COMPAT_OSF1

separate the requirements for OSF1 compat from NetBSD's

Catch up DEBUG printfs to siginfo changes.

* Shuffle some data structures so, and add a flags word to ksiginfo_t.
Right now the only flag is used to indicate if a ksiginfo_t is a
result of a trap. Add a predicate macro to test for this f

* Shuffle some data structures so, and add a flags word to ksiginfo_t.
Right now the only flag is used to indicate if a ksiginfo_t is a
result of a trap. Add a predicate macro to test for this flag.
* Add initialization macros for ksiginfo_t's.
* Add accssor macro for ksi_trap. Expands to 0 if the ksiginfo_t was
not the result of a trap. This matches the sigcontext trapcode semantics.
* In kpsendsig(), use KSI_TRAP_P() to select the lwp that gets the signal.
Inspired by Matthias Drochner's fix to kpsendsig(), but correctly handles
the case of non-trap-generated signals that have a > 0 si_code.

This patch fixes a signal delivery problem with threaded programs noted by
Matthias Drochner on tech-kern.

As discussed on tech-kern. Reviewed and OK's by Christos.

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Siginfo changes for alpha kernel. Approved by thorpej@netbsd.org.