Protect against nfssilly in RUMP_THREADS=0

merge christos-time_t

provide kern_realloc

Rename malloc() to kern_malloc() to avoid name conflict with libc.
Now it is possible to use the kernel linker with rump.

Include libkern contents in librump.

Sauce with some kludges:
* revert rev 1.68 of emul.c: delay() is hopelessly MD and needs
whipping (not the fun kind)
* #undef DELAY in cpu.h

This will hopefully fix build for all archs and give me

Sauce with some kludges:
* revert rev 1.68 of emul.c: delay() is hopelessly MD and needs
whipping (not the fun kind)
* #undef DELAY in cpu.h

This will hopefully fix build for all archs and give me time to
hop through our 46521 fine archs and edit the headers.

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Export delay, _delay and delay_func symbols to attempt to appease
the macro mania set over all architectures.

Include kernel printf routines in rump instead of relying on the
magic libc symbol. This also allows to bid farewell to subr_prf2.c
and merge the contents back to subr_prf.c. The host kernel bridgi

Include kernel printf routines in rump instead of relying on the
magic libc symbol. This also allows to bid farewell to subr_prf2.c
and merge the contents back to subr_prf.c. The host kernel bridging
is now done via rumpuser_putchar().

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Define MODULAR for rump core components. This enables module
loading via the kernel module framework (instead of dlopen()).
For now it only works on amd64 and i386, but for the rest it should
just b

Define MODULAR for rump core components. This enables module
loading via the kernel module framework (instead of dlopen()).
For now it only works on amd64 and i386, but for the rest it should
just be a matter of including the relevant kobj_machdep.c modules
from the kernel sources.

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properly handle kthread_exit()

include subr_devsw in rumpkern

undo turn malloc flags to enums.
Requested by christos.

Keep malloc flag defines in kernel section.

Turn malloc flags into an enum. Fixes build breakage.

__KERNEL_RCSID

If available (__NetBSD__), use pthread_setname_np() to set the
thread name for kthread_create().

If the arch uses __BSWAP_RENAME, provide non-namespaced kernel
symbols which just call the libc symbols. Allows to get rid of
rump machine/bswap.h.

XXX:
1) this is unlikely to work on non-NetBSD
==

If the arch uses __BSWAP_RENAME, provide non-namespaced kernel
symbols which just call the libc symbols. Allows to get rid of
rump machine/bswap.h.

XXX:
1) this is unlikely to work on non-NetBSD
==>
2) should look into including libkern in librump

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Make non-mpsafe threads KERNEL_LOCK() before starting execution.

Remove the whole magic ubc window thingie. All file systems use
ubc_uiomove() now, so we can hook ourselves there.

Add a few symbols required by nfsd

Add more verbose commentage to the module thread non-creation.

Ignore the module unload thread.

Add some more trivial emulations.

Provide psignal() so that we don't get linked against psignal(3).
As there is no real process model currently, just "trap" the signals
appropriately.

Support callouts and call callout_hardclock() from the timer
interrupt thread.

The sleepq implementation required for callouts is horrible, kludged
only for callouts, and generally unacceptable. It

Support callouts and call callout_hardclock() from the timer
interrupt thread.

The sleepq implementation required for callouts is horrible, kludged
only for callouts, and generally unacceptable. It needs revisiting,
but I'm not sure yet should rump or kern_timeout be improved. It's
almost untested as of now, but committing this will give me some
maneuvering space while letting application compile.

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Remove rumpuser_yield(). Not only doesn't it really make sense
here, some kind soul made it completely empty.