jmmv [Sun, 9 Mar 2014 22:05:23 +0000 (22:05 +0000)]
Fix yacc tests so that they run cleanly with prove.
First, change the driver to run the installed yacc instead of the one from
/usr/obj (which might not be there), just as we (intend to) do with all
other tests.
Second, regenerate the expected output files from scratch. Based on visual
inspection, the differences seem OK. But this highlights that the tests in
here are too fragile and, possibly, useless: we should be testing the
behavior of the generated program, not the literal output. Something to be
addressed later.
ian [Sun, 9 Mar 2014 21:12:31 +0000 (21:12 +0000)]
Remove all traces of support for ARM chips prior to the arm9 series. We
never actually ran on these chips (other than using SA1 support in an
emulator to do the early porting to FreeBSD long long ago). The clutter
and complexity of some of this code keeps getting in the way of other
maintenance, so it's time to go.
marcel [Sun, 9 Mar 2014 21:06:22 +0000 (21:06 +0000)]
Change the terminal type/class for enabled serial lines to 3wire. This
allows us to change the uart(4) driver to not hardcode specific line
settings for the serial console.
A terminal type of 3wire makes sure the console still works when no DCD
signal is present, which preserves behviour. When it is known that the
terminal server (or DCE in general) provides DCD, a terminal type/class
of std can be used. This has the effect of being logged out when one
disconnects from the console -- improving security overall.
Likewise, when uart(4) does not fixate the baudrate, one can change
the terminal type/class to set a specific baudrate. An operator can use
this to change the console speed mid-flight, without needing a reboot.
Of course it helps in this respect if and when the firmware can be
configured from the OS.
The above mentioned capabilities depend on uart(4) being changed, which
is to happen next.
marcel [Sun, 9 Mar 2014 20:51:14 +0000 (20:51 +0000)]
Add 3wire and std as terminal types/classes. These are similar to
the existing terminal types/classes that have the baudrate suffix,
but differ in that no baudrate is set/defined.
The purpose of these new types/classes is to allow them to be used
for the serial console. Currently the uart(4) driver fixates the
baudrate and the CLOCAL flag, which means that it doesn't matter
whether you give it std.<baud> or 3wire.<baud> as the terminal type
to getty and what exactly <baud> is set to. It's being overridden
by uart(4). The goal is to change uart(4) not to override these
settings.
ian [Sun, 9 Mar 2014 18:08:27 +0000 (18:08 +0000)]
The arm exception entry points currently vector through a function pointer
to the actual handler routine. All the pointers are static-intialized to
the only handlers available, and yet various platform-specific inits still
set those pointers (to the values they're already initialized to). Begin
to drain the swamp by removing all the redundant external declarations and
runtime setting of the pointers that's scattered around various places.
ian [Sun, 9 Mar 2014 15:36:56 +0000 (15:36 +0000)]
Make undefined exception entry MPSAFE.
The old code used static storage to preserve a couple registers while
setting up the trapframe for the main handler. Doing so was the last
leftover crumbs from the days when a low-level debugger was hooked into
the exception entry code.
Now the exception entry sequence is essentially the same as for the
other exceptions, which still involves needlessly indirecting through
a function pointer which points to the same code on every platform.
Removing that indirection will be handled as a separate cleanup.
This work is based on an analysis by Juergen Weiss.
ian [Sun, 9 Mar 2014 14:24:05 +0000 (14:24 +0000)]
Always call vfp_discard() on thread death, not just when the VFP is
enabled. In vfp_discard(), if the state in the VFP hardware belongs to
the thread which is dying, NULL out pcpu fpcurthread to indicate the
state currently in the hardware belongs to nobody.
jmg [Sun, 9 Mar 2014 07:45:59 +0000 (07:45 +0000)]
various formating fixes, use NUL for NUL bytes..
drop out dated perf numbers (can't imagine people are still running
Pentium MMX 166's anymore)...
bump date...
drop max length of salt of 8 since _PASSWORD_LEN is now large, 128..
and state the max length of the salt depends upon the module,
sha-{256,512} have a max salt of 16..
recommend 8 characters of salt instead of just 2...
ian [Sun, 9 Mar 2014 03:49:06 +0000 (03:49 +0000)]
Remove all dregs of a per-thread undefined-exception-mode stack. This is
a leftover from the days when a low-level debugger had hooks in the
undefined exception vector and needed stack space to function. These days
it effectively isn't used because we switch immediately to the svc32 mode
stack on exception entry. For that, the single undef mode stack per core
that gets set up at init time works fine.
The stack wasn't necessary but it was harmful, because the space for it
was carved out of the normal per-thread svc32 stack, in effect cutting
that 8K stack in half. If svc32 mode used more than 4k of stack space it
wandered down into the undef mode stack, and then an undef exception would
overwrite a couple words on the stack while switching to svc32 mode,
corrupting the scv32 stack. Having another stack abut the bottom of the
svc32 stack also effectively mooted the guard page below the stack.
This work is based on analysis and patches submitted by Juergen Weiss.
ian [Sun, 9 Mar 2014 03:00:03 +0000 (03:00 +0000)]
Rework the VFP code that handles demand-based save and restore of state.
The old code was full of complexity that would only matter if the
kernel itself used the VFP hardware. Now that's reduced to either killing
the userland process or panicking the kernel on an illegal VFP instruction.
This removes most of the complexity from the assembler code, reducing it
to just calling the save code if the outgoing thread used the VFP.
The routine that stores the VFP state now takes a flag that indicates
whether the hardware should be disabled after saving state. Right now it
always is, but this makes the code ready to be used by get/set_mcontext()
(doing so will be addressed in a future commit).
Remove the arm-specific pc_vfpcthread from struct pcpu and use the MI
field pc_fpcurthread instead.
neel [Sun, 9 Mar 2014 02:07:15 +0000 (02:07 +0000)]
Fix panic "_mtx_lock_sleep: recursed on non-recursive mutex ttymtx" caused when
acquiring the tty lock in bvm_tty_close(). Instead just assert that the tty
lock is held before calling callout_reset().
jilles [Sat, 8 Mar 2014 19:44:34 +0000 (19:44 +0000)]
sh: Successfully do nothing when killing a terminated job.
If a job has terminated but is still known, silently do nothing when using
the kill builtin with the job specifier. Formerly, the shell called kill()
with the process group ID that might have been reused.
imp [Sat, 8 Mar 2014 03:39:15 +0000 (03:39 +0000)]
Set the baud rate if it isn't 0 (meaning it has been specified) not
only if it is 0 (meaning that it hasn't been specified and is likely
to turn off the UART's transmitter).
jeff [Sat, 8 Mar 2014 00:35:06 +0000 (00:35 +0000)]
- Make runq_steal_from more aggressive. Previously it would examine only
a single priority queue. If that queue had a thread or threads which
could not be migrated we would fail to steal load. This could cause
starvation in situations where cores are idle.
imp [Sat, 8 Mar 2014 00:14:40 +0000 (00:14 +0000)]
Move all the files named foo/common.c to foo/foo_common.c, as
appropriate for each of the 'foo' in the tree. This will allow us to
compile them together (although symbol conflicts prevent us from doing
that today, this just fixes the file name collision).
asomers [Fri, 7 Mar 2014 23:40:36 +0000 (23:40 +0000)]
Partial revert of change 262914. I screwed up subversion syntax with
perforce syntax and committed some unrelated files. Only devd files
should've been committed.
Reported by: imp
Pointy hat to: asomers
MFC after: 3 weeks
X-MFC-With: r262914
asomers [Fri, 7 Mar 2014 23:01:35 +0000 (23:01 +0000)]
cddl/contrib/opensolaris/lib/libuutil/common/uu_avl.c
Fix a memory leak in uu_avl_pool_create: pthread_mutex_init without
a corresponding pthread_mutex_destroy. It shows up, among other
places, when doing "zfs list".
ian [Fri, 7 Mar 2014 21:36:49 +0000 (21:36 +0000)]
Strip arm/conf/DEFAULTS down to just items that are mandatory for running
the architecture. Move the other contents into each of the individual
config files.
dteske [Fri, 7 Mar 2014 20:44:19 +0000 (20:44 +0000)]
Rewrite groupmgmt -- hooking it into the scripting system with dispatch
commands groupAdd, groupDelete, and groupEdit. Getting rid of the awkward-
to-use `groupinput' bolt-on which Ron and I talked about rewriting.
ian [Fri, 7 Mar 2014 20:32:45 +0000 (20:32 +0000)]
Fix the arm sys_sigreturn(): its argument is a struct ucontext, not a
struct sigframe containing the struct ucontext.
The signal trampoline return code on the other hand DOES have just a
struct sigframe on the stack to work with, so have it get a pointer to
the ucontext out of there to pass along to sys_sigreturn.
In other words, make everything work right whether sys_sigreturn is
invoked from the trampoline or from userland code calling sigreturn(2).
asomers [Fri, 7 Mar 2014 19:30:03 +0000 (19:30 +0000)]
kern/Makefile
Set WARNS=5 for all files in this directory
kern/unix_seqpacket_test.c
Fix compiler warnings. Most were benign, but rcvbuf_oversized
wasn't working as intended because I forgot to set the buffer sizes.
mav [Fri, 7 Mar 2014 09:45:40 +0000 (09:45 +0000)]
Fix support for increased logical sector size (4K-native drives).
- Logical sector size is measured in words, not bytes.
- If physical sector is not bigger then logical sector, it does not mean
it should be set equal to 512 bytes, but set to logical sector.
grehan [Fri, 7 Mar 2014 06:23:37 +0000 (06:23 +0000)]
Open the uart emulation's backing tty in non-blocking mode.
This fixes the issue of bhyve appearing to halt when using
nmdm ports for the console, until a connection is made to
the other end.
ian [Fri, 7 Mar 2014 00:25:23 +0000 (00:25 +0000)]
Add option TMPFS to arm/conf/DEFAULTS, remove it from the few configs
that have it individually. Concensus on freebsd-arm@ is that it should
be included in all ARM kernels.
asomers [Thu, 6 Mar 2014 20:24:15 +0000 (20:24 +0000)]
Fix PR kern/185813 "SOCK_SEQPACKET AF_UNIX sockets with asymmetrical
buffers drop packets". It was caused by a check for the space available
in a sockbuf, but it was checking the wrong sockbuf.
sys/sys/sockbuf.h
sys/kern/uipc_sockbuf.c
Add sbappendaddr_nospacecheck_locked(), which is just like
sbappendaddr_locked but doesn't validate the receiving socket's
space. Factor out common code into sbappendaddr_locked_internal().
We shouldn't simply make sbappendaddr_locked check the space and
then call sbappendaddr_nospacecheck_locked, because that would cause
the O(n) function m_length to be called twice.
sys/kern/uipc_usrreq.c
Use sbappendaddr_nospacecheck_locked for SOCK_SEQPACKET sockets,
because the receiving sockbuf's size limit is irrelevant.
tests/sys/kern/unix_seqpacket_test.c
Now that 185813 is fixed, pipe_128k_8k fails intermittently due to
185812. Make it fail every time by adding a usleep after starting
the writer thread and before starting the reader thread in
test_pipe. That gives the writer time to fill up its send buffer.
Also, clear the expected failure message due to 185813. It actually
said "185812", but that was a typo.
PR: kern/185813
Reviewed by: silence from freebsd-net@ and rwatson@
MFC after: 3 weeks
Sponsored by: Spectra Logic Corporation
gjb [Thu, 6 Mar 2014 18:48:02 +0000 (18:48 +0000)]
Add a hack-ish attempt to provide backwards-compatibility with
release.conf SVNROOT entries that do not have a trailing '/'.
In order to provide a mechanism to use !svn, the trailing '/'
was added to SVNROOT so there were no assumptions being made
about '/' being in the URL between SVNROOT and SRCBRANCH.
marcel [Thu, 6 Mar 2014 01:59:13 +0000 (01:59 +0000)]
Use SYSDIR to reference to the top of the sys hierarchy. Define SYSDIR
relative to .CURDIR if not already defined. This makes the makefiles
more readable but also more re-usable and adaptable.
jeff [Thu, 6 Mar 2014 00:13:21 +0000 (00:13 +0000)]
- If we fail to do a non-blocking acquire of a buf lock while doing a
waiting sync pass we need to do a blocking acquire and restart.
Another thread, typically the buf daemon, may have this buf locked and
if we don't wait we can fail to sync the file. This lead to a great
variety of softdep panics because we rely on all dependencies being
flushed before proceeding in several cases.
jeff [Thu, 6 Mar 2014 00:10:07 +0000 (00:10 +0000)]
- Gracefully handle truncation failures when trying to shrink directories.
This could cause dirhash panics since the dirhash state would be
successfully truncated while the directory was not.
gjb [Wed, 5 Mar 2014 23:17:53 +0000 (23:17 +0000)]
Merge ^/projects/release-embedded into ^/head.
After several months of testing and fixing (and breaking)
various parts of release/release.sh changes, it is now
possible to build FreeBSD/arm images as part of the release
process.
When EMBEDDEDBUILD is set in the release.conf file, release.sh
will create the build environment, then run a separate script
in release/${XDEV}/release.sh [1]. Currently, only arm is
supported.
The release/${XDEV}/release.sh configures the build environment
specific for the target image, such as installing gcc(1),
installing additional third-party software from the ports tree,
and fetching external sources.
Once the build environment is set up, release/${XDEV}/release.sh
runs Crochet, written by Tim Kientzle, which builds the userland
and kernel, and creates an image that can be written to an SD
card with dd(1). Many thanks to Tim for his work on Crochet.
Sample configurations for FreeBSD/arm boards are in the
release/arm/ directory, and Crochet configuration files for each
board are located in release/tools/arm/. Supported boards at this
time are: BEAGLEBONE, PANDABOARD, RPI-B, and WANDBOARD-QUAD.
Adding support for additional boards will continue in the
projects/release-embedded/ branch, and incrementally merged back
to head/.
Many thanks to the FreeBSD Foundation for the support and
sponsorship of this project.
[1] XDEV is used in order to keep the various configurations
organized by architecture, but since TARGET and TARGET_ARCH
are used to build the chroot, the values of those variables
cannot be used.
MFC after: 1 month
Sponsored by: The FreeBSD Foundation
glebius [Wed, 5 Mar 2014 21:16:46 +0000 (21:16 +0000)]
The route code used to mtx_destroy() a locked mutex before rtentry free. Now,
after r262763 it started to return locked mutexes to UMA. To fix that,
conditionally unlock the mutex in the destructor.
Tested by: "Sergey V. Dyatko" <sergey.dyatko@gmail.com>