IFC @ r234692

sys/amd64/include/cpufunc.h
sys/amd64/include/fpu.h
sys/amd64/amd64/fpu.c
sys/amd64/vmm/vmm.c

- Add API to allow vmm FPU state init/save/restore.

FP stuff discussed with: kib

Merge head up to r232685 to projects/pf/head.

Remove some duplicated copyright notices.

Approved by: dim (mentor)

IFC @230489 (pending review).

IFC @ r227804

Pull in the virtio drivers from head.

Implement xlocale APIs from Darwin, mainly for use by libc++. This adds a
load of _l suffixed versions of various standard library functions that use
the global locale, making them take an explicit

Implement xlocale APIs from Darwin, mainly for use by libc++. This adds a
load of _l suffixed versions of various standard library functions that use
the global locale, making them take an explicit locale parameter. Also
adds support for per-thread locales. This work was funded by the FreeBSD
Foundation.

Please test any code you have that uses the C standard locale functions!

Reviewed by: das (gdtoa changes)
Approved by: dim (mentor)

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Make the format of LC_COLLATE files architecture independent.

ANSI'fy prototypes

Prefer C99's __func__ over GCC's __FUNCTION__.

Remove unnecessary inclusion of <rune.h> to make it obvious that this file
does not use the deprecated rune system.

Use ntohl() to read cnains number in new format

Style fix

Prepare for switching to unlimited chains format.
Optimize chains lookup a bit.

Reduce BSS size for programs which not load collate by eliminating
static buffer.

Now malloc() is fixed, remove errno hardcoding to ENOMEM

Rewrite locale loading procedures, so any load failure will not affect
currently cached data. It allows a number of nice things, like: removing
fallback code from single locale loading, remove memor

Rewrite locale loading procedures, so any load failure will not affect
currently cached data. It allows a number of nice things, like: removing
fallback code from single locale loading, remove memory leak when LC_CTYPE
data loaded again and again, efficient cache use, not only for
setlocale(locale1); setlocale(locale1), but for setlocale(locale1);
setlocale("C"); setlocale(locale1) too (i.e. data file loaded only once).

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Style fixes in preparation for rewritting

Do not use __progname directly (except in [gs]etprogname(3)).
Also, make an internal _getprogname() that is used only inside
libc. For libc, getprogname(3) is a weak symbol in case a
function of the

Do not use __progname directly (except in [gs]etprogname(3)).
Also, make an internal _getprogname() that is used only inside
libc. For libc, getprogname(3) is a weak symbol in case a
function of the same name is defined in userland.

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Fix the style of the SCM ID's.
I believe have made all of libc .c's as consistent as possible.

Remove _THREAD_SAFE and make libc thread-safe by default by
adding (weak definitions to) stubs for some of the pthread
functions. If the threads library is linked in, the real
pthread functions will

Remove _THREAD_SAFE and make libc thread-safe by default by
adding (weak definitions to) stubs for some of the pthread
functions. If the threads library is linked in, the real
pthread functions will pulled in.

Use the following convention for system calls wrapped by the
threads library:
__sys_foo - actual system call
_foo - weak definition to __sys_foo
foo - weak definition to __sys_foo

Change all libc uses of system calls wrapped by the threads
library from foo to _foo. In order to define the prototypes
for _foo(), we introduce namespace.h and un-namespace.h
(suggested by bde). All files that need to reference these
system calls, should include namespace.h before any standard
includes, then include un-namespace.h after the standard
includes and before any local includes. <db.h> is an exception
and shouldn't be included in between namespace.h and
un-namespace.h namespace.h will define foo to _foo, and
un-namespace.h will undefine foo.

Try to eliminate some of the recursive calls to MT-safe
functions in libc/stdio in preparation for adding a mutex
to FILE. We have recursive mutexes, but would like to avoid
using them if possible.

Remove uneeded includes of <errno.h> from a few files.

Add $FreeBSD$ to a few files in order to pass commitprep.

Approved by: -arch

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Simplify sytem call renaming. Instead of _foo() <-- _libc_foo <-- foo(),
just use _foo() <-- foo(). In the case of a libpthread that doesn't do
call conversion (such as linuxthreads and our upcomin

Simplify sytem call renaming. Instead of _foo() <-- _libc_foo <-- foo(),
just use _foo() <-- foo(). In the case of a libpthread that doesn't do
call conversion (such as linuxthreads and our upcoming libpthread), this
is adequate. In the case of libc_r, we still need three names, which are
now _thread_sys_foo() <-- _foo() <-- foo().

Convert all internal libc usage of: aio_suspend(), close(), fsync(), msync(),
nanosleep(), open(), fcntl(), read(), and write() to _foo() instead of foo().

Remove all internal libc usage of: creat(), pause(), sleep(), system(),
tcdrain(), wait(), and waitpid().

Make thread cancellation fully POSIX-compliant.

Suggested by: deischen

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Add three-tier symbol naming in support of POSIX thread cancellation
points. For library functions, the pattern is __sleep() <--
_libc_sleep() <-- sleep(). The arrows represent weak aliases. For
s

Add three-tier symbol naming in support of POSIX thread cancellation
points. For library functions, the pattern is __sleep() <--
_libc_sleep() <-- sleep(). The arrows represent weak aliases. For
system calls, the pattern is _read() <-- _libc_read() <-- read().

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__collate_substitute() do something non-trivial only for German. For everyone
else, it is equivalent to strdup(). So, we will check if the substitution
tables are trivial at the load time, and possi

__collate_substitute() do something non-trivial only for German. For everyone
else, it is equivalent to strdup(). So, we will check if the substitution
tables are trivial at the load time, and possibly save 2 calls to
__collate_substitute() in strcoll().

Still, __collate_substitute() should not exist.

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Reduce time of __collate_substitute() from O(strlen(s)^2) to O(strlen(s)).
Other minor optimizations. I got ~30% speedup in strcoll() for 50 char strings,
~40% speedup for 100 char strings, and unmea

Reduce time of __collate_substitute() from O(strlen(s)^2) to O(strlen(s)).
Other minor optimizations. I got ~30% speedup in strcoll() for 50 char strings,
~40% speedup for 100 char strings, and unmeasurable speedup for 1M strings.

Collates are still terribly slow. To make them reasonable fast,
__collate_substitute() should be killed.

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$Id$ -> $FreeBSD$