- stop gcc emitting stuff that HPUX requires
- don't use splhigh() in MCOUNT_ENTER as a call to _mcount will be
generated at the moment. Disable interrupts in hardware instead.
- Fix _PROF_PROLOGUE to save/restore all the register args when calling
_mcount.
- Fixup LEAF_ENTRY to dtrt (I think) in the GPROF case.
- Provide LEAF_ENTRY_NOPROFILE and sprinkle its use where i) profiling
causes problems, e.g. trap handlers, and ii) where it just doesn't
make sense, e.g. start.
(xxx_INIT to xxx_HEAD_INITIALIZER). Drop code which inits
non-auto (global or static) variables to 0 since that's
already implied by being non-auto. Init some static/global
cpu_simple_locks at compile time.
via the standard audio interfaces is redirected back to userland as raw
PCM data on /dev/padN.
One example usage is to stream audio to an AirTunes compatible device using
rtunes (http://www.nazgul.ch/dev_rtunes.html), ie:
$ rtunes - < /dev/pad0
$ mpg123 -a /dev/sound1 blah.mp3
Another option is to capture audio output from eg. Real Player, by simply
instructing Real Player to output to /dev/sound1, and running:
$ cat /dev/pad0 > blah.pcm
make bluetooth stack keep device_t instead of softc pointer as
device is not necessarily part of softc, and pass device_t to
driver callbacks. hci_devname is no longer required.
Rip the transport code completely out of puffs and generalize it
into an independent module which will be used for multiple purposes
in the future. This module is called the Pass-to-Userspace
Transporter (known as "putter" among friends).
This is very much work-in-progress and one dependency with puffs
remains: the request framing format.
The device name is still /dev/puffs, but that will change soon.
Users of puffs need the following in their kernel configs now:
pseudo-device putter
- Use atomics to adjust the pmap reference count, instead of taking locks.
- Implement I386_{SET,GET}_{FS,GS}BASE, allowing %fs and %gs to be used
as per-thread registers. This is compatible with FreeBSD.
- Run patches after we have attached CPUs, since we then know if the
system is uniprocessor or not. Eliminates a lot of #ifdef MULTIPROCESSOR
and makes running MP kernels on UP systems cheaper.
- Patch out many of the 'lock' prefixes to nops if uniprocessor.
- Do a wbinvd after patching to ensure that the trace/instruction cache
is up to date.
