Add new tests io_read_d[1234] in t_ptrace_wait{,3,4,6,id,pid}

io_read_d1:
    Verify PT_IO with PIOD_READ_D and len = sizeof(uint8_t)

io_read_d2:
    Verify PT_IO with PIOD_READ_D and len = sizeof(uint16_t)

io_read_d3:
    Verify PT_IO with PIOD_READ_D and len = sizeof(uint32_t)

io_read_d4:
    Verify PT_IO with PIOD_READ_D and len = sizeof(uint64_t)

Sponsored by <The NetBSD Foundation>

(kamil)

merge xkeyboard-config 2.19

(snj)

Fix PR kern/51531 by using ifconfig to wait for addresses to become
valid rather than sleeping a fixed ammount of time.

(roy)

1TB is enough UVA for anyone... plus not all cpus can support more.

(skrll)

follow upstream change from 2009: build xf86Init.c with the rest of the
common code.

remove not-reproducible-build-friendly goop that set a build date for
the the x server.  the static date (which we've already been using) in
xf86Build.h does just fine, although all it really does is add one
useless line to the X log.

fix whitespace around OSVENDOR

(snj)

s/COMPAT_NETBSD64/COMPAT_NETBSD32/ so userland works

(skrll)

remove another outdated and unused XORG_RELEASE define

(snj)

reduce diff to upstream. no functional change.

(snj)

fix "fix merge botch"

(no functional change)

(snj)

document NFS_BOOT_TCP option.

(mrg)

Obsolete thread_type in td_thread_info_st in <pthread_dbg.h>

The thread_type is irrelevant as all local POSIX threads are in user-space.

Keep the thread_type member in td_thread_info_st to preserve ABI
compatibility.

Later the remnants from M:N will be refactored in one go with library ABI
version bump.

Sponsored by <The NetBSD Foundation>

(kamil)

Simplify (pthread_t)pt_magic read in td_map_pth2thr(3)

No functional change. All ATF tests for pthread_dbg(3) still pass.

Sponsored by <The NetBSD Foundation>

(kamil)

Document td_map_pth2thr(3) from libpthread_dbg(3)

td_map_pth2thr - convert the pthread_t to a thread handle

Sponsored by <The NetBSD Foundation>

(kamil)

Add new tests in lib/libpthread_dbg/t_threads: threads[6789]

These tests verifies the td_map_pth2thr().

It's rather difficult to test all aspects of pthreads_dbg(3) functions out of
context of a real application, this is the reason why these tests are
extensions of the previous ones and they test four (out of unlimited) valid
code-paths.

This function (the same as others in this class) is doing only single thing,
but its result depends on unlimited variations of the context.

The purpose of these checks is basic validation that the pthread_dbg(3) library
is still usable, but not that it's out of bugs.

threads6:
    Asserts that pthread_t can be translated with td_map_pth2thr()
    to td_thread_t -- and assert earlier that td_thr_iter() call is
    valid.

threads7:
    Asserts that pthread_t can be translated with td_map_pth2thr()
    to td_thread_t -- and assert later that td_thr_iter() call is
    valid.

threads8:
    Asserts that pthread_t can be translated with td_map_pth2thr()
    to td_thread_t -- compare thread's name of pthread_t and
    td_thread_t.

threads9:
    Asserts that pthread_t can be translated with td_map_pth2thr()
    to td_thread_t -- assert that thread is in the TD_STATE_RUNNING
    state.

All tests are passing.

Sponsored by <The NetBSD Foundation>

(kamil)

new ntp

(christos)

merge conflicts

(christos)

Make lortrequest static and rename it to loop_rtrequest

No functional change.

(ozaki-r)

Document td_thr_getname(3) from libpthread_dbg(3)

td_thr_getname - get the user-assigned name of a thread

Sponsored by <The NetBSD Foundation>

(kamil)

NTP 4.2.8p9 has released.

(taca)

Add entry for pthread_dbg in share/tmac/doc2html

pthread_dbg is POSIX Debug Threads Library

Sponsored by <The NetBSD Foundation>

(kamil)

Add reference in SEE ALSO to pthread_dbg(3)

Sponsored by <The NetBSD Foundation>

(kamil)

Document td_thr_iter(3) from libpthread_dbg(3)

td_thr_iter - iterate over the threads in the process

Sponsored by <The NetBSD Foundation>

(kamil)

Document td_thr_info(3) from libpthread_dbg(3)

td_thr_info - get information on a thread

Currently a subset of td_thread_info_t is documented. This version
describes thread_addr and thread_state.

Sponsored by <The NetBSD Foundation>

(kamil)

Lock is already taken when handling async events, don't lock again
in scsipi_lookup_periph.

Fixes PR kern/51641.

(mlelstv)

Add initial documentation (man-pages) for libpthread_dbg

Document libpthread_dbg and basic function calls: td_open() and td_close()

Sponsored by <The NetBSD Foundation>

(kamil)

new wpa code

(christos)

Merge conflicts.

(christos)

nuke xf86-video-nvxbox, as xbox support went away in 2011.

(snj)

nuke xf86-video-nvxbox, as xbox support went away in 2011.

(snj)

missing bits for pm3fb, should have went with previous...

(macallan)

use <sys/types.h>

(christos)

prune xrefs to xorgconfig

(snj)

xorgconfig got nuked upstream in 2008

(snj)

Slight tweak now that umass(4) doesn't need KERNEL_LOCK

(skrll)

don't bother defining XORG_RELEASE.  not only was the value wrong, it's
not used anymore.

(snj)

Note scsipi and umass MP safety changes

ok skrll

(maya)

No need to take the kernel lock in umass(4) anymore

(skrll)

no need to define HAVE_PCI_DEVICE_IS_BOOT_VGA with xorg-server 1.18.
libpciaccess, which provides pci_device_is_boot_vga, is always present.

(snj)

1274

(snj)

Pull up following revision(s) (requested by kre in ticket #1274):
etc/rc.d/rtadvd: revision 1.9
The config file is not required to exist (unless specified via -c).
(reported by rhialto@falu.nl)  Don't fail to start if it doesn't.
Make sure the directory for the config file exists inside the chroot before
attempting to copy into it ("confdir" was calculated, but never used...)
While here, fix getopts usage (obviously only ever previously tested when
the -c arg was the first option...) and don't use test(1)'s -o operator
(especially not when one of the other args is an unknown string).
If -c is given (and we will chroot), require filename to be full path.
Misc minor style cleanups.

(snj)

1274

(snj)

Pull up following revision(s) (requested by kre in ticket #1274):
etc/rc.d/rtadvd: revision 1.9
The config file is not required to exist (unless specified via -c).
(reported by rhialto@falu.nl)  Don't fail to start if it doesn't.
Make sure the directory for the config file exists inside the chroot before
attempting to copy into it ("confdir" was calculated, but never used...)
While here, fix getopts usage (obviously only ever previously tested when
the -c arg was the first option...) and don't use test(1)'s -o operator
(especially not when one of the other args is an unknown string).
If -c is given (and we will chroot), require filename to be full path.
Misc minor style cleanups.

(snj)

PR 51553 David Binderman: don't bother counting up backlogged classes
when not doing anything with the results.

(dholland)

As a debugging measure for PR 49141, log what this is doing as it runs
to stdout. Hopefully this will get reported when the test fails in the
testbed rather than just causing ATF to report that it printed
unexpected output.

(dholland)

More of previous.

(dholland)

If pthread_create fails, report the error instead of discarding it.

(dholland)

Sweep unnecessary xcall.h inclusions

(ozaki-r)

Add note about kumeran registers. No functional change.

(msaitoh)

- Return ENOTTY rather than EINVAL for invalid ioctl, suggested by
  mlelstv.
- Protect NTP stuff in COMPAT_50 codes by NTP macro.

Approved by mlelstv

(rin)

Handle CLOCKCTL_NTP_ADJTIME32 even when compiled with !NTP;
just return ENOTTY in order to avoid possible failure when
main kernel and compat_netbsd32 module are compiled with
different NTP options in future.

Suggested and approved by mlelstv

(rin)

Kill SA thread states (TD_STATE_*) in pthread_dbg and add TD_STATE_DEAD

Scheduler Activation types were removed in NetBSD 5.0. Old type set is not
matching the new world POSIX threads library.

Only TD_STATE_RUNNING, TD_STATE_ZOMBIE are still applicable - keep it.

Keep TD_STATE_UNKNOWN as generic unrecognized type.

Add new TD_STATE_DEAD one. The TD_STATE_DEAD type is represented by number
6 in the POSIX threads library, but for the sake of compatibility with
older software using pthread_dbg - renumber it to 7, as six was reserved
for TD_STATE_SUSPENDED.

Old removed state types are marked as reserved and unused.

Sponsored by <The NetBSD Foundation>

(kamil)

Let's try initializing the pointers *before* dereferencing them!

Oops.

(riastradh)

Fix a race condition of low priority xcall

xc_lowpri and xc_thread are racy and xc_wait may return during/before
executing all xcall callbacks, resulting in a kernel panic at worst.

xc_lowpri serializes multiple jobs by a mutex and a cv. If all xcall
callbacks are done, xc_wait returns and also xc_lowpri accepts a next job.

The problem is that a counter that counts the number of finished xcall
callbacks is incremented *before* actually executing a xcall callback
(see xc_tailp++ in xc_thread). So xc_lowpri accepts a next job before
all xcall callbacks complete and a next job begins to run its xcall callbacks.

Even worse the counter is global and shared between jobs, so if a xcall
callback of the next job completes, the shared counter is incremented,
which confuses wc_wait of the previous job as all xcall callbacks of the
previous job are done and wc_wait of the previous job returns during/before
executing its xcall callbacks.

How to fix: there are actually two counters that count the number of finished
xcall callbacks for low priority xcall for historical reasons (I guess):
xc_tailp and xc_low_pri.xc_donep. xc_low_pri.xc_donep is incremented correctly
while xc_tailp is incremented wrongly, i.e., before executing a xcall callback.
We can fix the issue by dropping xc_tailp and using only xc_low_pri.xc_donep.

PR kern/51632

(ozaki-r)

KASSERT(mutex_owner(...)) ---> KASSERT(mutex_owned(...))

If this is not correct, then there's something bogus in this code
anyway, so better to fail early.

Final part of PR kern/47114.

(riastradh)

Kill some more tsleep.

And no, surrounding tsleep by mutex_exit/mutex_enter does not fix
problems even if the LOCKDEBUG panic symptom goes away...

(riastradh)

Defer initialization of isodma channels until we know how many.

Should fix a bug I introduced four years ago in:
https://mail-index.netbsd.org/source-changes/2012/08/04/msg036211.html

(riastradh)

Always set trailing '\0' in td_thr_getname() to compose valid ASCIIZ string

This fixes threads5 in tests/lib/libpthread_dbg

Sponsored by <The NetBSD Foundation>

(kamil)

KASSERT(mutex_owner(...)) ---> KASSERT(mutex_owned(...))

(riastradh)

KASSERT(mutex_owner(...)) ---> KASSERT(mutex_owned(...))

Fixes part of PR kern/47114.  Tested by code inspection.

(riastradh)

Add threads5 in tests/lib/libpthread_dbg/t_threads

Asserts that td_thr_getname() handles shorter buffer parameter and the
result is properly truncated.

Currently this test fails due to bug in pthread_dbg.

Sponsored by <The NetBSD Foundation>

(kamil)

Add threads4 in tests/lib/libpthread_dbg/t_threads.c

This test asserts that for each td_thr_iter() call td_thr_getname() is
valid.

Sponsored by <The NetBSD Foundation>.

(kamil)

Add RCS Id. Bump date for import. Case fixes.

(wiz)

Bump date for previous. Use more markup.

(wiz)

add driver for Permedia 3 based graphics devices
from Naruaki Etomi, via PR 49518

(macallan)

Add threads2 and threads3 in tests/lib/libpthread_dbg/t_threads.c

threads2:
Asserts that td_thr_iter() call is executed for each thread once

threads3:
Asserts that for each td_thr_iter() call td_thr_info() is valid

These tests pass correctly.

Sponsored by <The NetBSD Foundation>

(kamil)

shiny new console font, use FONT_GO_MONO12x23

(macallan)

add WSFONT_PREFER_ALPHA - for drivers that would rather render anti-aliased
fonts

(macallan)

Make scsipi framework MPSAFE.

Data structures are now protected by a per-adapter mutex at IPL_BIO
that is created by the scsibus or atapibus instance when the adapter
is configured.
The enable reference counter and the channel freeze counter which are
currently used by HBA code before the adapter is configured, are made
atomic.
The target drivers are now all tagged as D_MPSAFE.

Almost all HBA drivers still require the kernel lock to present,
so all callbacks into HBA code are still protected by kernel lock
unless the driver is tagged as SCSIPI_ADAPT_MPSAFE.

TODO: refactor sd and cd to use dksubr.

(mlelstv)

fuse_main(3): Support general fuse options via fuse_parse_cmdline(3)

* Prototypes for fuse_new(3), fuse_mount(3), and fuse_unmount(3) now
  matches to the original fuse interface.

* Add fuse_daemonize(3): needs to have a different prototype,
  otherwise we can't use puffs_daemon(3).

* Remove fuse_setup(3) and fuse_teardown(3). These obsolete functions
  has already been removed from the original interface.

* fuse_main(3) now supports the following command-line options
  compatible with the original fuse:

  -h, --help      print help message
  -V, --version  print library version (currently does nothing)
  -d, -o debug    enable debug output (PUFFS_FLAG_OPDUMP), implies -f
  -f              foreground mode
  -s              single threaded mode (always enabled for now)
  -o fsname=NAME  explicitly set the name of the file system

* fuse_main(3) now daemonizes the process by default. This is for the
  compatibility with the original fuse.

(pho)

fuse_lowlevel.h: new file, currently only contains fuse_parse_cmdline(3) and struct fuse_cmdline_opts

(pho)

Fixed typo in name for MCP3304.

(phx)

Whitespace.

(wiz)

Whitespace, sort.

(wiz)

Memory leak, found by Mootja.

(maxv)

Add crossreference to fork(2) per note in PR 9627.

(dholland)

Add crossreference to scsi(4) per note in PR 9627.

(dholland)

Add crossreference to scsictl per note in PR 9627.

(dholland)

Fix pt_magic read in td_map_pth2thr()

The pt_magic field is not the first one in the pthread_t structure.

Sponsored by <The NetBSD Foundation>

(kamil)

One more move of bufq_free() to outside of critical section.

(pgoyette)

Catch up with correct pt_magic reads in td_thr_{getname,suspend,resume}

The pt_magic field is not the first one in the pthread_t structure.

Sponsored by <The NetBSD Foundation>

(kamil)

Avoid calling bufq_free() from critical code sections.

(pgoyette)

Avoid calling bufq_free() from critical section.

(pgoyette)

Avoid calling bufq_free() from critical section.

(pgoyette)

Fix pt_magic (part of pthread_t) read in td_thr_info()

The pt_magic field is not the first one in the pthread_t structure.
After this fix, this code is confirmed to work and function td_thr_info()
is functional.

Sponsored by <The NetBSD Foundation>

(kamil)

regen all gdb platforms.

(mrg)

Bump date for previous.

Use more and more appropriate markup while here.

(wiz)

Add FALLTHROUGH commit

(christos)

Lock the manager and not just the node for inserting/removing nodes

should fix/help PR kern/50349: radeondrmkms vt-switching crash

ok riastradh

(maya)

Remove atf_tx_expect_fail from lib/libpthread_dbg/ tests

The following PR are now resolved and are reported to be properly fixed:
PR lib/51635 td_thr_iter in <pthread_dbg.h> seems broken
PR lib/51633 tests/lib/libpthread_dbg/t_dummy unreliable

Sponsored by <The NetBSD Foundation>

(kamil)

Make fstat(2) work on AF_LINK socket descriptors.

(njoly)

Pull across various locking and reference counting fixes from nick-nhusb.

(skrll)

s/#/$/ in a $NetBSD$ so it actually expands

(mrg)

Put a one-page redzone between userland and the PTE space on amd64 and
i386.

The PTE space is a critical region that maps the page tree, and bugs have
been found in both amd64 and i386 where the kernel would wrongly overflow
userland data on this area. This kind of bug is terrible, since it allows
userland to overwrite some entries of the page tree, which makes it easy
to patch the kernel text and get ring0 privileges.

(maxv)

mknative re-run

(skrll)

Optimise the interrupt vector a litte.  From matt@

(skrll)

Real mknative re-run

(skrll)

Add "getrealloc" and "setrealloc" commands to get/set automatic reallocation
parameters/enables for error recovery, similar to {get,set}cache.
Many old SCSI disks shipped with reallocation disabled, albeit supporting it.
Minor (cosmetic) fixup of scsi_disk_pages while there.
Based upon code in PR bin/29165 by Greg A. Woods.
OK christos@

(flxd)

Mark the alpha options use_secureplt as false... we don't do secure plt
on alpha (yet)

(skrll)

Add in netbsd-core.lo for all arm/mips

(skrll)

Fix basic_proc_read in pthread_dbg functions

Source and destination were swapped. The source of this confusion was that
running these tests under gdb(1) will generate false positives as it will
initialize pthread__dbg to PID of the debugger. This means that it is
currently not possible to debug pthread_dbg code under a full-stack
debugger using NetBSD debugging library for threads.

This should address:
PR lib/51633 tests/lib/libpthread_dbg/t_dummy unreliable
PR lib/51635: td_thr_iter in <pthread_dbg.h> seems broken

After applying the fix I'm able to run all pthread_dbg tests without
indeterminism. The indeterminism was caused by overwritting source of data
with trash.

Sponsored by <The NetBSD Foundation>

(kamil)

Undo change to a comment made when I thought another change to the
script was needed ... the unnecessary script change was never committed,
but the comment that described it was...    No functional change.

(kre)

The config file is not required to exist (unless specified via -d).
(reported by rhialto@falu.nl)  Don't fail to start if it doesn't.

Make sure the directory for the config file exists inside the chroot before
attempting to copy into it ("confdir" was calculated, but never used...)

While here, fix getopts usage (obviously only ever previously tested when
the -c arg was the first option...) and don't use test(1)'s -o operator
(especially not when one of the other args is an unknown string).
If -c is given (and we will chroot), require filename to be full path.

Misc minor style cleanups.

(kre)

More clean-up of #includes

(pgoyette)

Add new test file lib/libpthread_dbg/t_threads

This test contains threads1 test that:
    Asserts that td_thr_iter() call without extra logic works

This tests fails and is linked with gnats:
PR lib/51635: td_thr_iter in <pthread_dbg.h> seems broken

Sponsored by <The NetBSD Foundation>

(kamil)

Add the initial module(9) infrastructure

(pgoyette)

Clean up some #includes

(pgoyette)

Sprinkle MFC0_HAZARD for previous and PARANOIA

(skrll)

don't blindly zero STATUS in order to disable interrupts, instead take care
to preserve bits like KX in case we catch an interrupt between mtc0 and the
write actually taking effect
now n32 kernels on my O2 are (mostly) stable again
ok skrll@

(macallan)

(simulate) mknative re-run

(skrll)

Oops, it should be Aq Mt email@address

(Thanks again wiz :-)

(abhinav)

Remove extra pair of braces.

(joerg)

We must use PSLIST_ENTRY_DESTROY after PSLIST_WRITER_REMOVE and waiting all readers done.

And then, if we want to re-insert the removed pslist element, we need to
call PSLIST_ENTERY_INIT again.

advised by riastradh@n.o and reviewed by ozaki-r@n.o, thanks.

(knakahara)

Use .An -nosplit
Also, use Mt for email addresses.

(Thanks wiz)

(abhinav)

Clean up after the import auto-generate.

At least now it doesn't cause config(1) any problems.

(pgoyette)

Provide a generic nbsd_skip_solib_resolver and use it in alpha and arm.
Others should follow suit.

I even tested it.

(skrll)

Use more markup and complete a sentence.

(abhinav)

Resolve conflicts

(pgoyette)

Use more markup.

(wiz)

if_register() must be called after ifp->if_dl initialized.

There may be similar problems. I will fix step by step...

(knakahara)

Fix WOL related setting of the WUC register for other than PCH*
in wm_enable_wakeup(). Tested with 82567V(ICH8) and 82583V.

(msaitoh)

fix: "ifconfig destory" can stalls when "ifconfig" is done parallel.
This problem occurs only if NET_MPSAFE on.

ifconfig destroy side:
    kernel entry point is ifioctl => if_clone_destroy.
    pr_purgeif() acquires softnet_lock, and then ifa_remove() calls
    pserialize_perform() holding softnet_lock.
ifconfig side:
    kernel entry point is socreate.
    pr_attach()(udp_attach_wrapper()) calls sosetlock(). In this call path,
    sosetlock() try to acquire softnet_lock.
These can cause dead lock.

(knakahara)

Explain why we don't touch the next pointer of the removed entry.

(riastradh)

By popular request, don't both initializing a static pointer to NULL.

(pgoyette)

KASSERT that MIPS_SR_KX is set when entering interrupt handler in !o32

(macallan)

In addition to initializing the bufq subsystem, we also need to init
the individual strategy modules.

(pgoyette)

Mark dummy2 and dummy3 in lib/libpthread_dbg/t_dummy with expected fail

The dummy2 test reports failures on i386 releng machines.

The same with dummy3, but it's also reproducible sometimes on my amd64
setup. It's not always broken, neither always functional - once a while it
reports failure. So far I have not reproduced failure in dummy2.

PR lib/51633 tests/lib/libpthread_dbg/t_dummy unreliable

Sponsored by <The NetBSD Foundation>

(kamil)

fix misplaced conditionalized } that broke pointer detection under
vmware when running X without a config file.

(snj)

Unmap tmpva once we are done using it, not to pollute the page tree.

(maxv)

Remap the pages with G until kern_end, and not just the preloaded modules.
This way the bootstrap tables, proc0's stack and the I/O mem area don't get
flushed each time userland needs a TLB shootdown.

(maxv)

Change the way how puffs_fuse_node_create() behaves.

In puffs "create" and "open" are two separate operations with
atomicity achieved by locking the parent vnode. In fuse, on the other
hand, "create" is actually a create-and-open-atomically and the open
flags (O_RDWR, O_APPEND, ...) are passed via fi.flags. So the only way
to emulate the fuse semantics is to open the file with dummy flags and
then immediately close it.

You might think that we could simply use fuse->op.mknod all the time
but no, that's not possible because most file systems nowadays expect
op.mknod to be called only for non-regular files and many don't even
support it.

(pho)

Add couple FALLTHROUGHs CIDs: 976559, 976560, 976561

No functional change.

(shm)

CID 978587: Removed unnecessary check against NULL.

(shm)

Use compile-time initialization for the list head, and make sure that
the sysctllog is also initialized before being used.

(pgoyette)

let there be a sane font path!

(snj)

comment out COMPILEDDEFAULTFONTPATH as in olden days, happy golden days

(snj)

the last release of xorg-server that cared about RGB_DB was 1.4.2,
back in 2008

(snj)

1. only xorg-server.old has xaa.h, so -DHAVE_XAA_H would make sense
  there, but it doesn't with 1.18
2. it t matter anyway.  xf86-video-nouveau removed all XAA support
  in 2007, and as such, nothing here is conditional upon HAVE_XAA_H
3. is a magic number

(snj)

Add dummy3 in lib/libpthread_dbg/t_dummy

This test verifies that it's not possible to attach twice to the same
process with td_open() -- it asserts failure with status TD_ERR_INUSE.

This test does nothing besides initializing and deinitializing pthread_dbg
debugging instance.

Refactor code to be more reusable.

Set proper description of dummy2.

Sponsored by <The NetBSD Foundation>.

(kamil)

8257[124] should not set WM_F_ARC_SUBSYS_VALID.

(msaitoh)

Add new test dummy2 in lib/libpthread_dbg/t_dummy

This tests implements:
- .proc_read with memcpy(3)
- .proc_write with memcpy(3)
- .proc_lookup with dlopen(3) and dlsym(3) combination

td_open() is verified to return with success (TD_ERR_OK), followed by a
call to td_close().

This test does nothing else than initializing and deinitializing td_proc_t
structure, with appropriately implemented functions.

Sponsored by <The NetBSD Foundation>

(kamil)

Fix flag check in wm_get_wakeup()
- 8254[17]* should not set WM_F_ARC_SUBSYS_VALID.
- Add missing WM_T_82541_2 and WM_T_82547_2
- Note that the setting of both Linux's FLAG_HAS_AMT and FreeBSD's has_amt
  flag is doubtful on 8257[34] and 82583.

(msaitoh)

Document the previously-undocument kern.bufq node.

(pgoyette)

Update bufq man page for new functions, with appropriate cross-refs to
sysctl(7) and module(9).

(pgoyette)

Initialize the bufq stuff for rump, too.

This should fix the large number of tests that recently started to fail.

(pgoyette)

add more plumbing to pass a clockframe around so pwmclock can work again

Hi nick!

(macallan)

Add new test-suite t_dummy for libpthread_dbg

At the moment this test does nothing except reports failure from td_open()
for overloaded (implemented) dummy1_proc_lookup() (.proc_lookup from
td_proc_callbacks_t) of the following form:

static int
dummy1_proc_lookup(void *arg, const char *sym, caddr_t *addr)
{
        return TD_ERR_ERR;
}

This file and directory with tests is placeholder for new ones, without
further need to alter mtree and distribution sets.

The libpthread_dbg interface and library is used by gdb(1) to handle
threads in applications.

Sponsored by <The NetBSD Foundation>

(kamil)

reenable mips1-specific dmamem_sync method
clean up a bit while there

(macallan)

switch to common MIPS bus_space and bus_dma
tested by flxd@

(macallan)

1272

(snj)

Pull up following revision(s) (requested by maya in ticket #1272):
sys/external/bsd/drm2/dist/drm/drm_gem.c: revision 1.6
Avoid zero-size uao.
Apparently some GEM/TTM objects can be zero-size, as discovered by
Stefan Hertenberger:
https://mail-index.netbsd.org/current-users/2016/08/02/msg029891.html

(snj)