Commit Graph

132 Commits

Author SHA1 Message Date
Ed Maste
47b5c71929 embed_mfs: correctly test grep return value
Reported by:	br
MFC with:	r326992
Sponsored by:	The FreeBSD Foundation
2018-01-03 19:22:10 +00:00
Colin Percival
a21a2da599 Teach makeobjops.awk to accept PROLOG and EPILOG blocks before
METHOD and STATICMETHOD declarations; that code will be inserted
into the dispatch function before and after the method call.

Use this functionality and the TSLOG framework to record DEVICE_ATTACH
and DEVICE_PROBE entry/exit timestamps.
2017-12-31 09:23:19 +00:00
Ed Maste
2dd51e16ca embed_mfs: support embedding mfs into loader
The script originally supported embedding an mfs into ELF files or any
other type of file, because it searched for magic strings to mark the
beginning and end of the embeddable section. It was later modified to
read the section offset and length via readelf, which made it work for
ELF only. Restore the ability to update arbitrary file types by using
the readelf technique for ELF, and the magic string technique for all
others (including PE/COFF files like loader.efi).

Submitted by:	Zakary Nafziger <worldofzak@gmail.com>
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D12746
2017-12-19 19:44:06 +00:00
Pedro F. Giffuni
fe267a5590 sys: general adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

No functional change intended.
2017-11-27 15:23:17 +00:00
Pedro F. Giffuni
51369649b0 sys: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.
2017-11-20 19:43:44 +00:00
Warner Losh
2e36db147e Move sys/boot/fdt/dts to sys/dts and adjust scripts.
Sponsored by: Netflix
2017-11-14 21:03:57 +00:00
Ed Maste
0bf94a089d embed_mfs: add error handling, usage
Ensure that we are called with two arguments, and that the output file
is writable. Also, if we cannot find the mfs section report the output
file name rather than "kernel", as this script may be used with other
than kernels.

Sponsored by:	The FreeBSD Foundation
2017-10-17 21:13:26 +00:00
Emmanuel Vadot
46375c65f6 make.conf: Add the possibility to use another DTC
Add a make.conf DTC variable that control which DTC (Device Tree Compiler)
to use.

Reviewed by:	bdrewery, imp
Differential Revision:	https://reviews.freebsd.org/D9577
2017-06-17 23:34:53 +00:00
Hans Petter Selasky
3f9dcc588d Declare the "snd_fxdiv_table" once. This shaves around 24Kbytes of
binary data from sound.ko and the kernel.

MFC after:		3 days
2017-05-25 05:23:47 +00:00
Hans Petter Selasky
0f86d40bf5 Increase the allowed maximum number of audio channels from 31 to 127
in the PCM feeder mixer. Without this change a value of 32 channels is
treated like zero, due to using a mask of 0x1f, causing a kernel
assert when trying to playback bitperfect 32-channel audio. Also
update the AWK script which is generating the division tables to
handle more than 18 channels. This commit complements r282650.

MFC after:		3 days
2017-05-24 21:42:48 +00:00
Oleksandr Tymoshenko
5faab58bd0 [fdt] Make DTBs generated by make_dtb.sh overlay-ready
Generate symbols node when compiling dts files so they can be modified
during boot-time by applying overlays.
2017-03-10 22:45:07 +00:00
Warner Losh
fbbd9655e5 Renumber copyright clause 4
Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is too pedantic, so give up on that point.

Submitted by:	Jan Schaumann <jschauma@stevens.edu>
Pull Request:	https://github.com/freebsd/freebsd/pull/96
2017-02-28 23:42:47 +00:00
Li-Wen Hsu
0a50238935 Replace using of objdump with elfdump
In-tree objdump is too old to dump new ELF headers.  But for example if we
use: `make CROSS_TOOLCHAIN=riscv64-gcc TARGET_ARCH=riscv64` and do not specify
CROSS_BINUTILS_PREFIX in env, embed_mfs.sh cannot find the correct objdump.
This patch just replaces using of objdump with elfdump to collect needed
information.

Later we may also put an ELFDUMP in CROSSENV and use it in embed_mfs.sh .

Reviewed by:	emaste, br
MFC after:	3 days
Differential Revision:	https://reviews.freebsd.org/D9062
2017-01-10 18:46:40 +00:00
Ruslan Bukin
3cd77f5416 Consider CROSS_BINUTILS_PREFIX environment variable so we use correct
objdump.

Sponsored by:	DARPA, AFRL
Sponsored by:	HEIF5
2016-08-10 13:49:17 +00:00
Adrian Chadd
f4c1f0b9eb Fix MFS builds when both MD_ROOT_SIZE and MFS_IMAGE are specified
MD_ROOT_SIZE and embed_mfs.sh were basically retired as part of
https://reviews.freebsd.org/D2903 .
However, when building a kernel with 'options MD_ROOT_SIZE' specified, this
results in a non-working MFS, as within sys/dev/md/md.c we fall within the
wrong # ifdef.

This patch implements the following:

* Allow kernels to be built without the MD_ROOT_SIZE option, which results
  in a kernel built as per D2903.
* Allow kernels to be built with the MD_ROOT_SIZE option, which results
  in a kernel built similarly to the pre-D2903 way, with the following
  differences:
  * The MFS is now put in a separate section within the kernel (oldmfs,
    so it differs from the mfs section introduced by D2903).
  * embed_mfs.sh is changed, so it looks up the oldmfs section within the
    kernel, gets its size and offset, sees if the MFS will fit within the
    allocated oldmfs section and only if all is well does a dd of the MFS
    image into the kernel.

Submitted by:	Stanislav Galabov <sgalabov@gmail.com>
Reviewed by:	brooks, imp
Differential Revision:	https://reviews.freebsd.org/D5093
2016-02-02 07:02:51 +00:00
Bryan Drewery
cada39d8dd Rename the /usr/share/doc/legal files to driver.LICENSE to work around
bug of installing 'realtek' and 'intel_iwn' as files rather then as
a 'LICENSE' file in their directories.

Also add obsolete entries for the older names and names that existed in head
for a period of time.

Suggested by:	jmg
X-MFC-With:	r289391
MFC after:	3 weeks
Sponsored by:	EMC / Isilon Storage Division
2015-10-16 00:38:05 +00:00
Andriy Gapon
2f2f522b5d save some bytes by using more concise SDT_PROBE<n> instead of SDT_PROBE
SDT_PROBE requires 5 parameters whereas SDT_PROBE<n> requires n parameters
where n is typically smaller than 5.

Perhaps SDT_PROBE should be made a private implementation detail.

MFC after:	20 days
2015-09-28 12:14:16 +00:00
Ian Lepore
1ec2d237e0 Allow the make_dtb script to work outside of a "make buildkernel" context
by setting MACHINE from uname -m if it's not set already.

Reviewed by:	imp, tuexen
2014-08-30 22:39:15 +00:00
Rui Paulo
4f1156ca62 Call cpp with -P to avoid printing line markings. 2014-06-10 06:24:01 +00:00
Warner Losh
382b6bbafe Fix logic error. <blush>
Submitted by: ian@
2014-04-30 20:52:38 +00:00
Warner Losh
56d78e82f0 Turns out this .if evaluated not in the context of the makedtb target
sometimes due to Makefile expansion rules. Make the test for things
being NULL elsewhere...
2014-04-30 20:47:40 +00:00
Warner Losh
0edb735169 Allow FDT_DTS_FILE to be a list, either in the makedtb target, or in a
kernel config file. If you also want to have a static DTB compiled
into your kernel, however, it cannot be a list. We have no mechanism
in the kernel for picking one, so that doesn't make sense and will
result in a compile-time error.
2014-04-30 18:02:04 +00:00
Ed Maste
0fcefb433d Update NetBSD Foundation copyrights to 2-clause BSD
The NetBSD Foundation states "Third parties are encouraged to change the
license on any files which have a 4-clause license contributed to the
NetBSD Foundation to a 2-clause license."

This change removes clauses 3 and 4 from copyright / license blocks that
list The NetBSD Foundation as the only copyright holder.

Sponsored by:	The FreeBSD Foundation
2014-03-18 01:40:25 +00:00
Warner Losh
8b86933acc Use proper include path for dtc as well as cpp. 2014-02-28 22:37:35 +00:00
Warner Losh
eeb913c99f Integrate device-tree upstream files into the build process:
(1) Invoke cpp to bring in files via #include (although the old
    /include/ stuff is supported still).
(2) bring in files from either vendor tree or freebsd-custom files
    when building.
(3) move all dts* files from sys/boot/fdt/dts to
    sys/boot/fdt/dts/${MACHINE} as appropriate.
(4) encode all the magic to do the build in sys/tools/fdt/make_dtb.sh
    so that the different places in the tree use the exact same logic.
(5) switch back to gpl dtc by default. the bsdl one in the tree has
    significant issues not easily addressed by those unfamiliar with
    the code.
2014-02-28 18:29:09 +00:00
Andriy Gapon
d9fae5ab88 dtrace sdt: remove the ugly sname parameter of SDT_PROBE_DEFINE
In its stead use the Solaris / illumos approach of emulating '-' (dash)
in probe names with '__' (two consecutive underscores).

Reviewed by:	markj
MFC after:	3 weeks
2013-11-26 08:46:27 +00:00
Attilio Rao
54366c0bd7 - For kernel compiled only with KDTRACE_HOOKS and not any lock debugging
option, unbreak the lock tracing release semantic by embedding
  calls to LOCKSTAT_PROFILE_RELEASE_LOCK() direclty in the inlined
  version of the releasing functions for mutex, rwlock and sxlock.
  Failing to do so skips the lockstat_probe_func invokation for
  unlocking.
- As part of the LOCKSTAT support is inlined in mutex operation, for
  kernel compiled without lock debugging options, potentially every
  consumer must be compiled including opt_kdtrace.h.
  Fix this by moving KDTRACE_HOOKS into opt_global.h and remove the
  dependency by opt_kdtrace.h for all files, as now only KDTRACE_FRAMES
  is linked there and it is only used as a compile-time stub [0].

[0] immediately shows some new bug as DTRACE-derived support for debug
in sfxge is broken and it was never really tested.  As it was not
including correctly opt_kdtrace.h before it was never enabled so it
was kept broken for a while.  Fix this by using a protection stub,
leaving sfxge driver authors the responsibility for fixing it
appropriately [1].

Sponsored by:	EMC / Isilon storage division
Discussed with:	rstone
[0] Reported by:	rstone
[1] Discussed with:	philip
2013-11-25 07:38:45 +00:00
John Baldwin
593efaf9f7 Further refine the handling of stop signals in the NFS client. The
changes in r246417 were incomplete as they did not add explicit calls to
sigdeferstop() around all the places that previously passed SBDRY to
_sleep().  In addition, nfs_getcacheblk() could trigger a write RPC from
getblk() resulting in sigdeferstop() recursing.  Rather than manually
deferring stop signals in specific places, change the VFS_*() and VOP_*()
methods to defer stop signals for filesystems which request this behavior
via a new VFCF_SBDRY flag.  Note that this has to be a VFC flag rather than
a MNTK flag so that it works properly with VFS_MOUNT() when the mount is
not yet fully constructed.  For now, only the NFS clients are set this new
flag in VFS_SET().

A few other related changes:
- Add an assertion to ensure that TDF_SBDRY doesn't leak to userland.
- When a lookup request uses VOP_READLINK() to follow a symlink, mark
  the request as being on behalf of the thread performing the lookup
  (cnp_thread) rather than using a NULL thread pointer.  This causes
  NFS to properly handle signals during this VOP on an interruptible
  mount.

PR:		kern/176179
Reported by:	Russell Cattelan (sigdeferstop() recursion)
Reviewed by:	kib
MFC after:	1 month
2013-02-21 19:02:50 +00:00
Oleksandr Tymoshenko
7fc3ae51f3 Fix build on ARM (and probably other platforms) 2012-12-28 06:52:53 +00:00
Jeff Roberson
4c44811c9d - Add new machine parsable KTR macros for timing events.
- Use this new format to automatically handle syscalls and VOPs.  This
   changes the earlier format but is still human readable.

Sponsored by:	EMC / Isilon Storage Division
2012-12-19 20:10:00 +00:00
Kevin Lo
9823d52705 Revert previous commit...
Pointyhat to:	kevlo (myself)
2012-10-10 08:36:38 +00:00
Kevin Lo
a10cee30c9 Prefer NULL over 0 for pointers 2012-10-09 08:27:40 +00:00
Mikolaj Golub
f62f6c88ee Make vnode_if.awk parse vnode operations with underscores, like VOP_FOO_BAR.
Reviewed by:	kib
MFC after:	1 week
2012-02-21 19:35:59 +00:00
Ed Schouten
5cac9fa00e Restore the comment that I removed by accident.
The comment still applies to this block of code.
2011-11-09 13:26:59 +00:00
Ed Schouten
d09ebcec17 Simplify the code emitted by makeobjops.awk slightly.
Just place the default kobj_method inside the kobjop_desc structure.
There's no need to give these kobj_methods their own symbol. This shaves
off 10 KB of a GENERIC kernel binary.
2011-11-09 11:00:29 +00:00
Ed Schouten
3f3f6bc302 Make kobj_methods constant.
These structures hold no information that is modified during runtime. By
marking this constant, we see approximately 600 symbols become
read-only (amd64 GENERIC). While there, also mark the kobj_method
structures generated by makeobjops.awk static. They are only referenced
by the kobjop_desc structures within the same file.

Before:

	$ ls -l kernel
	-rwxr-xr-x  1 ed  wheel  15937309 Nov  8 16:29 kernel*
	$ size kernel
	    text    data     bss      dec    hex filename
	12260854 1358468 2848832 16468154 fb48ba kernel
	$ nm kernel | fgrep -c ' r '
	8240

After:

	$ ls -l kernel
	-rwxr-xr-x  1 ed  wheel  15922469 Nov  8 16:25 kernel*
	$ size kernel
	    text    data     bss      dec    hex filename
	12302869 1302660 2848704 16454233 fb1259 kernel
	$ nm kernel | fgrep -c ' r '
	8838
2011-11-08 15:38:21 +00:00
Ryan Stone
04af6e9603 GNU awk does not output escaped newlines in multi-line printc statements. This
leads to compile errors when trying to compile firmware(9) stubs created with
gawk, as multiple #include statements end up on the same line.  Replace the
multi-line printc statement that outputs all of the #includes with one printc
per #include.  This allows modules compatible with firmware(9) to be cross-built
from a Linux machine without requiring the one true awk to be installed.

I've intentionally done the minimal set of changes necessary to make gawk
produce valid (but not pretty) C code, to reduce the churn and keep fw_stubs.awk
as readable as possible.

Approved by:	emaste (mentor)
MFC after:	2 weeks
2011-03-31 21:33:33 +00:00
Rui Paulo
79856499bd Add an extra comment to the SDT probes definition. This allows us to get
use '-' in probe names, matching the probe names in Solaris.[1]

Add userland SDT probes definitions to sys/sdt.h.

Sponsored by:	The FreeBSD Foundation
Discussed with:	rwaston [1]
2010-08-22 11:18:57 +00:00
Rafal Jaworowski
847ae21203 Flattened Device Tree helper scripts.
Reviewed by:	imp
Sponsored by:	The FreeBSD Foundation
2010-06-02 17:22:38 +00:00
Rui Paulo
f91c218bf8 Output a comment on top of each generated file explaining where it came
from.
2009-10-25 09:48:21 +00:00
Ed Maste
97aa4d9845 Rename default to default_function, for compatibility with GNU awk.
(For cross-compiling out-of-tree kernel modules, for example.)
2009-10-22 20:57:17 +00:00
Max Khon
b352b7ccb9 Allow KMOD with hypens and dots.
MFC after:	1 week
2009-10-20 11:54:06 +00:00
Ariff Abdullah
96831ae59b - Increase dynamic range of filter coefficients from 28bit to 30bit.
This cause dramatic effect in overall precision and conversion quality
  by pushing down most aliasing artifacts around -180 dB.

  Spectrogram analysis/comparison:

  	http://people.freebsd.org/~ariff/z_comparison/z_28vs30/

- Guard against possible 64bit overflow during accumulation process by
  slightly normalize and saturate sample and coefficient multiplication,
  possible during extreme 32bit downsampling (eg. 380KHz -> 8KHz) with
  custom preset that require more than ~7000 taps filter (which is
  overkill).

- Add knobs through FEEDER_RATE_PRESETS to set dynamic range of filter
  coefficients/accumulator and prefered polynomial interpolator:

  	COEFFICIENT_BIT:X
	(where 1 <= X <= 30, default: 30)

	ACCUMULATOR_BIT:X
	(where 32 <= X <=64, default: 58)

	INTERPOLATOR:I
	(where I = ZOH, LINEAR, QUADRATIC, HERMITE, BSPLINE,
 	           OPT32X, OPT16X, OPT8X, OPT4X, OPT2X)

Approved by:	re (kib)
2009-07-05 18:15:06 +00:00
Ariff Abdullah
0162436974 Slightly increase amount of bandwidth of resampling filter for
feeder_rate_quality=3. This have the benefit of reducing aliasing
artifacts due to alias masking.

Spectrogram analysis:

 o Old preset (100:36:0.90)
	http://people.freebsd.org/~ariff/z_comparison/z_q3_old.png

 o New preset (100:36:0.92):
	http://people.freebsd.org/~ariff/z_comparison/z_q3_new.png

Approved by:	re (kib)
2009-07-02 10:02:10 +00:00
Ariff Abdullah
164e1f20ec - Add a way to change filter oversampling factor through
FEEDER_RATE_PRESET "OVERSAMPLING_FACTOR:X .. .." where
  X = log2(oversampling factor).

- Lower down default filter oversampling factor from 128
  (log2 = 7) to 32 (log2 = 5), saving worth of 80 Kb.
  The use of better polynomial interpolator will raise
  its conversion quality/accuracy to match (or slightly
  better) with previous settings.

- Bump driver version.
2009-06-15 04:31:34 +00:00
Ariff Abdullah
0f40c3f162 Move all sound related scripts to its own 'sound' subdir.
Suggested by:	jmallett
2009-06-10 06:49:45 +00:00
Ariff Abdullah
90da2b2859 Sound Mega-commit. Expect further cleanup until code freeze.
For a slightly thorough explaination, please refer to
	[1] http://people.freebsd.org/~ariff/SOUND_4.TXT.html .

Summary of changes includes:

1 Volume Per-Channel (vpc).  Provides private / standalone volume control
  unique per-stream pcm channel without touching master volume / pcm.
  Applications can directly use SNDCTL_DSP_[GET|SET][PLAY|REC]VOL, or for
  backwards compatibility, SOUND_MIXER_PCM through the opened dsp device
  instead of /dev/mixer.  Special "bypass" mode is enabled through
  /dev/mixer which will automatically detect if the adjustment is made
  through /dev/mixer and forward its request to this private volume
  controller.  Changes to this volume object will not interfere with
  other channels.

  Requirements:
    - SNDCTL_DSP_[GET|SET][PLAY|REC]_VOL are newer ioctls (OSSv4) which
      require specific application modifications (preferred).
    - No modifications required for using bypass mode, so applications
      like mplayer or xmms should work out of the box.

  Kernel hints:
    - hint.pcm.%d.vpc (0 = disable vpc).

  Kernel sysctls:
    - hw.snd.vpc_mixer_bypass (default: 1).  Enable or disable /dev/mixer
      bypass mode.
    - hw.snd.vpc_autoreset (default: 1).  By default, closing/opening
      /dev/dsp will reset the volume back to 0 db gain/attenuation.
      Setting this to 0 will preserve its settings across device
      closing/opening.
    - hw.snd.vpc_reset (default: 0).  Panic/reset button to reset all
      volume settings back to 0 db.
    - hw.snd.vpc_0db (default: 45).  0 db relative to linear mixer value.

2 High quality fixed-point Bandlimited SINC sampling rate converter,
  based on Julius O'Smith's Digital Audio Resampling -
  http://ccrma.stanford.edu/~jos/resample/.  It includes a filter design
  script written in awk (the clumsiest joke I've ever written)
    - 100% 32bit fixed-point, 64bit accumulator.
    - Possibly among the fastest (if not fastest) of its kind.
    - Resampling quality is tunable, either runtime or during kernel
      compilation (FEEDER_RATE_PRESETS).
    - Quality can be further customized during kernel compilation by
      defining FEEDER_RATE_PRESETS in /etc/make.conf.

  Kernel sysctls:
    - hw.snd.feeder_rate_quality.
      0 - Zero-order Hold (ZOH).  Fastest, bad quality.
      1 - Linear Interpolation (LINEAR).  Slightly slower than ZOH,
          better quality but still does not eliminate aliasing.
      2 - (and above) - Sinc Interpolation(SINC).  Best quality.  SINC
          quality always start from 2 and above.

  Rough quality comparisons:
    - http://people.freebsd.org/~ariff/z_comparison/

3 Bit-perfect mode.  Bypasses all feeder/dsp effects.  Pure sound will be
  directly fed into the hardware.

4 Parametric (compile time) Software Equalizer (Bass/Treble mixer). Can
  be customized by defining FEEDER_EQ_PRESETS in /etc/make.conf.

5 Transparent/Adaptive Virtual Channel. Now you don't have to disable
  vchans in order to make digital format pass through.  It also makes
  vchans more dynamic by choosing a better format/rate among all the
  concurrent streams, which means that dev.pcm.X.play.vchanformat/rate
  becomes sort of optional.

6 Exclusive Stream, with special open() mode O_EXCL.  This will "mute"
  other concurrent vchan streams and only allow a single channel with
  O_EXCL set to keep producing sound.

Other Changes:
    * most feeder_* stuffs are compilable in userland. Let's not
      speculate whether we should go all out for it (save that for
      FreeBSD 16.0-RELEASE).
    * kobj signature fixups, thanks to Andriy Gapon <avg@freebsd.org>
    * pull out channel mixing logic out of vchan.c and create its own
      feeder_mixer for world justice.
    * various refactoring here and there, for good or bad.
    * activation of few more OSSv4 ioctls() (see [1] above).
    * opt_snd.h for possible compile time configuration:
      (mostly for debugging purposes, don't try these at home)
        SND_DEBUG
        SND_DIAGNOSTIC
        SND_FEEDER_MULTIFORMAT
        SND_FEEDER_FULL_MULTIFORMAT
        SND_FEEDER_RATE_HP
        SND_PCM_64
        SND_OLDSTEREO

Manual page updates are on the way.

Tested by:	joel, Olivier SMEDTS <olivier at gid0 d org>, too many
          	unsung / unnamed heroes.
2009-06-07 19:12:08 +00:00
Robert Watson
ff8a07fda2 Add SDT DTrace probes for VFS vnode operations in the vfs:vop
provider namespace.  These are inserted dynamically into the
VOP_..._AP() functions created from vnode_if.src.  Each VOP has
entry and return probes, as arg0 the primary vnode, arg1 the
vnode operation argument structure pointer, providing access to
IN and OUT arguments, and for return probes, arg2 the return
value.

MFC after:	1 month
Sponsored by:	Google, Inc.
2009-03-29 03:30:15 +00:00
John Baldwin
c439bdd86f Remove some unused and broken code that attempted to not invoke locking
asserts on NULL vnode pointers.  All the vnode assertion routines already
check for NULL vnode pointers.
2008-11-03 19:57:40 +00:00
Rafal Jaworowski
fcfdd827d0 Introduce a standalone shell script for embedding MFS image.
This allows to fix a problem with ARM kernel.bin not having the MFS image
embedded: it is objcopied from the kernel.noheader temporary ELF file, which
was not subject to embedding the MFS image previously.

Reviewed by:	imp
Approved by:	cognet (mentor)
2008-02-05 10:46:30 +00:00