Commit Graph

169 Commits

Author SHA1 Message Date
Christian S.J. Peron
9a990500e5 - Implement -h (human readable) for the size of the underlying block disk.
Currently, the size of the swap device is unconditionally reported using
  blocks, even if -h has been used.
- While here, switch to CONVERT_BLOCKS() instead of CONVERT() which will
  avoid overflowing size counters (in human readable form see: r196244)
- Update the column headers to reflect that a size is being reported instead
  of the block size units being used

Before:

$ swapinfo
Device          1K-blocks     Used    Avail Capacity
/dev/gpt/swapfs   1048576        0  1048576     0%
$

After:

$ swapinfo -h
Device           Size     Used    Avail Capacity
/dev/gpt/swapfs    1.0G       0B     1.0G     0%
$

Differential Revision:	https://reviews.freebsd.org/D23758
Reviewed by:	kevans
MFC after:	3 weeks
2020-02-20 21:12:10 +00:00
Pedro F. Giffuni
8a16b7a18f General 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 19:49:47 +00:00
Bryan Drewery
ea825d0274 DIRDEPS_BUILD: Update dependencies.
Sponsored by:	Dell EMC Isilon
2017-10-31 00:07:04 +00:00
Konstantin Belousov
6992112349 Commit the 64-bit inode project.
Extend the ino_t, dev_t, nlink_t types to 64-bit ints.  Modify
struct dirent layout to add d_off, increase the size of d_fileno
to 64-bits, increase the size of d_namlen to 16-bits, and change
the required alignment.  Increase struct statfs f_mntfromname[] and
f_mntonname[] array length MNAMELEN to 1024.

ABI breakage is mitigated by providing compatibility using versioned
symbols, ingenious use of the existing padding in structures, and
by employing other tricks.  Unfortunately, not everything can be
fixed, especially outside the base system.  For instance, third-party
APIs which pass struct stat around are broken in backward and
forward incompatible ways.

Kinfo sysctl MIBs ABI is changed in backward-compatible way, but
there is no general mechanism to handle other sysctl MIBS which
return structures where the layout has changed. It was considered
that the breakage is either in the management interfaces, where we
usually allow ABI slip, or is not important.

Struct xvnode changed layout, no compat shims are provided.

For struct xtty, dev_t tty device member was reduced to uint32_t.
It was decided that keeping ABI compat in this case is more useful
than reporting 64-bit dev_t, for the sake of pstat.

Update note: strictly follow the instructions in UPDATING.  Build
and install the new kernel with COMPAT_FREEBSD11 option enabled,
then reboot, and only then install new world.

Credits: The 64-bit inode project, also known as ino64, started life
many years ago as a project by Gleb Kurtsou (gleb).  Kirk McKusick
(mckusick) then picked up and updated the patch, and acted as a
flag-waver.  Feedback, suggestions, and discussions were carried
by Ed Maste (emaste), John Baldwin (jhb), Jilles Tjoelker (jilles),
and Rick Macklem (rmacklem).  Kris Moore (kris) performed an initial
ports investigation followed by an exp-run by Antoine Brodin (antoine).
Essential and all-embracing testing was done by Peter Holm (pho).
The heavy lifting of coordinating all these efforts and bringing the
project to completion were done by Konstantin Belousov (kib).

Sponsored by:	The FreeBSD Foundation (emaste, kib)
Differential revision:	https://reviews.freebsd.org/D10439
2017-05-23 09:29:05 +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
Xin LI
ed09c2c161 - pstat(8) does not accept any arguments other than getopt() args,
so don't bother to adjust argc/argv after getopt() loop.
 - Make a string pointer constant.

MFC after:	2 weeks
2016-12-26 17:34:27 +00:00
Bryan Drewery
cf990407e1 Update dependencies after r291406 added libelf to libkvm.
Unfortunately filemon/meta mode tracks all indirect dependencies here
since ld(1) is reading libelf when linking in libkvm.  Churn would be
reduced if this was able to be limited to direct dependencies.

Sponsored by:	EMC / Isilon Storage Division
2015-12-01 05:18:48 +00:00
Simon J. Gerraty
ccfb965433 Add META_MODE support.
Off by default, build behaves normally.
WITH_META_MODE we get auto objdir creation, the ability to
start build from anywhere in the tree.

Still need to add real targets under targets/ to build packages.

Differential Revision:       D2796
Reviewed by: brooks imp
2015-06-13 19:20:56 +00:00
Simon J. Gerraty
44d314f704 dirdeps.mk now sets DEP_RELDIR 2015-06-08 23:35:17 +00:00
Simon J. Gerraty
98e0ffaefb Merge sync of head 2015-05-27 01:19:58 +00:00
Baptiste Daroussin
c6db8143ed Convert usr.sbin to LIBADD
Reduce overlinking
2014-11-25 16:57:27 +00:00
Simon J. Gerraty
9268022b74 Merge from head@274682 2014-11-19 01:07:58 +00:00
Jilles Tjoelker
3e83ac2bfa pstat(8): Correct description of the SESS column in pstat -t.
MFC after:	1 week
2014-10-11 21:53:06 +00:00
Simon J. Gerraty
fae50821ae Updated dependencies 2014-05-16 14:09:51 +00:00
Simon J. Gerraty
76b28ad6ab Updated dependencies 2014-05-10 05:16:28 +00:00
Simon J. Gerraty
7cf3a1c6b2 Updated dependencies 2013-03-11 17:21:52 +00:00
Simon J. Gerraty
f5f7c05209 Updated dependencies 2013-02-16 01:23:54 +00:00
Marcel Moolenaar
7750ad47a9 Sync FreeBSD's bmake branch with Juniper's internal bmake branch.
Requested by: Simon Gerraty <sjg@juniper.net>
2012-08-22 19:25:57 +00:00
Ed Schouten
9f365aa1d6 Get rid of major/minor number distinction.
As of FreeBSD 6, devices can only be opened through devfs. These device
nodes don't have major and minor numbers anymore. The st_rdev field in
struct stat is simply based a copy of st_ino.

Simply display device numbers as hexadecimal, using "%#jx". This is
allowed by POSIX, since it explicitly states things like the following
(example taken from ls(1)):

	"If the file is a character special or block special file, the
	size of the file may be replaced with implementation-defined
	information associated with the device in question."

This makes the output of these commands more compact. For example, ls(1)
now uses approximately four columns less. While there, simplify the
column length calculation from ls(1) by calling snprintf() with a NULL
buffer.

Don't be afraid; if needed one can still obtain individual major/minor
numbers using stat(1).
2011-09-28 18:53:36 +00:00
Ed Schouten
71ccf09269 The last big commit: let usr.sbin/ use WARNS=6 by default. 2010-01-02 11:07:44 +00:00
Stanislav Sedov
67c601d5f6 - Avoid overflowing the swap size counters in human-readable mode
by introducing the new CONVERT_BLOCKS macro which operates on
  sizes already converted to number of blocks.  With this macro
  it is not longer needed to perform needless multiplication by
  blocksize just to divide on it later in CONVERT macro.

Approved by:	re (kib)
MFC after:	1 week
2009-08-15 14:39:33 +00:00
Stanislav Sedov
52074d389f - Make pstat(8) WARNS=6 safe.
- While here, eliminate the check for len > 0 in ttymode_sysctl
  as the code is able to handle this case well.

Reviewed by:	ed (initial version)
2009-06-11 17:03:28 +00:00
Ed Schouten
493f0f1709 Correct my previous commit to pstat(8).
Not only mark the strings inside the array as const, but do the same for
the elements of the array itself.

Submitted by:	Christoph Mallon
2009-06-11 09:59:47 +00:00
Ed Schouten
777e045cb5 Make most of pstat(8) build with WARNS=6.
There is still an issue with the nlists, which I'm not quite sure how to
solve, so I'm leaving WARNS set to 3 right now.
2009-06-11 09:02:22 +00:00
Ed Schouten
c0086bf202 Serialize write() calls on TTYs.
Just like the old TTY layer, the current MPSAFE TTY layer does not make
any attempt to serialize calls of write(). Data is copied into the
kernel in 256 (TTY_STACKBUF) byte chunks. If a write() call occurs at
the same time, the data may interleave. This is especially likely when
the TTY starts blocking, because the output queue reaches the high
watermark.

I've implemented this by adding a new flag, TTY_BUSY_OUT, which is used
to mark a TTY as having a thread stuck in write(). Because I don't want
non-blocking processes to be possibly blocked by a sleeping thread, I'm
still allowing it to bypass the protection. According to this message,
the Linux kernel returns EAGAIN in such cases, but I think that's a
little too restrictive:

	http://kerneltrap.org/index.php?q=mailarchive/linux-kernel/2007/5/2/85418/thread

PR:		kern/118287
2009-02-11 16:28:49 +00:00
Ed Schouten
c3328b2ab8 Don't leave the console TTY constantly open.
When we leave the console TTY constantly open, we never reset the
termios attributes. This causes output processing, echoing, etc. not to
be reset to the proper values when going into single user mode after the
system has booted. It also causes nl-to-crnl-conversion not to take
place during shutdown, which causes a `staircase effect'.

This patch adds a new TTY flag, TF_OPENED_CONS, which is set when the
TTY is opened through /dev/console. Because the flags are only used by
the kernel and the pstat(8) utility, I've decided to renumber the TTY
flags. This shouldn't be an issue, because the TTY layer is not yet part
of a stable release.

Reported by:	Mark Atkinson <atkin901 yahoo com>
Tested by:	sepotvin
2009-02-05 14:21:09 +00:00
Ed Schouten
37a9f58275 Clamp the values of t_column to 5 digits in pstat -t' and show all ttys'.
We often run into these very high column numbers when we run curses
applications, because they don't print any newlines. This messes up the
table output of `pstat -t'. If these numbers get really high, they
aren't of any use to the reader anyway. Convert them to `99999' when
they run out of bounds.
2008-11-01 13:40:46 +00:00
Ed Schouten
a1215e37a4 Introduce a hooks layer for the MPSAFE TTY layer.
One of the features that prevented us from fixing some of the TTY
consumers to work once again, was an interface that allowed consumers to
do the following:

- `Sniff' incoming data, which is used by the snp(4) driver.

- Take direct control of the input and output paths of a TTY, which is
  used by ng_tty(4), ppp(4), sl(4), etc.

There's no practical advantage in committing a hooks layer without
having any consumers. In P4 there is a preliminary port of snp(4) and
thompsa@ is busy porting ng_tty(4) to this interface. I already want to
have it in the tree, because this may stimulate others to work on the
remaining modules.

Discussed with:	thompsa
Obtained from:	//depot/projects/mpsafetty/...
2008-09-22 19:25:14 +00:00
Ed Schouten
9d5a92ee43 Fix a small typo in the pstat(8) manual page.
The second LOW column of the pstat(8) command refers to the low
watermark of the output queue.
2008-08-20 22:09:33 +00:00
Ed Schouten
bc093719ca Integrate the new MPSAFE TTY layer to the FreeBSD operating system.
The last half year I've been working on a replacement TTY layer for the
FreeBSD kernel. The new TTY layer was designed to improve the following:

- Improved driver model:

  The old TTY layer has a driver model that is not abstract enough to
  make it friendly to use. A good example is the output path, where the
  device drivers directly access the output buffers. This means that an
  in-kernel PPP implementation must always convert network buffers into
  TTY buffers.

  If a PPP implementation would be built on top of the new TTY layer
  (still needs a hooks layer, though), it would allow the PPP
  implementation to directly hand the data to the TTY driver.

- Improved hotplugging:

  With the old TTY layer, it isn't entirely safe to destroy TTY's from
  the system. This implementation has a two-step destructing design,
  where the driver first abandons the TTY. After all threads have left
  the TTY, the TTY layer calls a routine in the driver, which can be
  used to free resources (unit numbers, etc).

  The pts(4) driver also implements this feature, which means
  posix_openpt() will now return PTY's that are created on the fly.

- Improved performance:

  One of the major improvements is the per-TTY mutex, which is expected
  to improve scalability when compared to the old Giant locking.
  Another change is the unbuffered copying to userspace, which is both
  used on TTY device nodes and PTY masters.

Upgrading should be quite straightforward. Unlike previous versions,
existing kernel configuration files do not need to be changed, except
when they reference device drivers that are listed in UPDATING.

Obtained from:		//depot/projects/mpsafetty/...
Approved by:		philip (ex-mentor)
Discussed:		on the lists, at BSDCan, at the DevSummit
Sponsored by:		Snow B.V., the Netherlands
dcons(4) fixed by:	kan
2008-08-20 08:31:58 +00:00
Ed Schouten
94a340ae73 Remove OTTYDISC, NETLDISC and NTTYDISC definitions.
When I ported most applications away from <sgtty.h>, I noticed none of
them were actually using these definitions. I kept them in place,
because I didn't want to touch tools like pstat(8) and stty(1).

In preparation for the MPSAFE TTY layer, remove these definitions. This
doesn't have any impact with respect to binary compatibility (see
tty_conf.c).

We couldn now add an #error to <sys/ioctl_compat.h> when included
outside the kernel. Unfortunately, kdump's mkioctls includes this file
unconditionally.

Approved by:	philip (mentor)
2008-07-16 11:20:04 +00:00
Remko Lodder
bc42e6c43f Fix pstat behaviour when using coredumps. The reference to tp was
incorrect and should have been poining to &tty, tp is a virtual
address from the coredump, while we should obtain the address through
the tty struct.

Approved by:	imp (mentor, implicit trivial changes)
MFC after:	1 week
Submitted by:	Ed Schouten (ed at 80836 dot nl)
2008-05-14 00:22:57 +00:00
Sean Farley
2966d28c32 Significantly reduce the memory leak as noted in BUGS section for
setenv(3) by tracking the size of the memory allocated instead of using
strlen() on the current value.

Convert all calls to POSIX from historic BSD API:
 - unsetenv returns an int.
 - putenv takes a char * instead of const char *.
 - putenv no longer makes a copy of the input string.
 - errno is set appropriately for POSIX.  Exceptions involve bad environ
   variable and internal initialization code.  These both set errno to
   EFAULT.

Several patches to base utilities to handle the POSIX changes from
Andrey Chernov's previous commit.  A few I re-wrote to use setenv()
instead of putenv().

New regression module for tools/regression/environ to test these
functions.  It also can be used to test the performance.

Bump __FreeBSD_version to 700050 due to API change.

PR:		kern/99826
Approved by:	wes
Approved by:	re (kensmith)
2007-07-04 00:00:41 +00:00
Andrey A. Chernov
ba174a5e38 Back out all POSIXified *env() changes.
Not because I admit they are technically wrong and not because of bug
reports (I receive nothing). But because I surprisingly meets so
strong opposition and resistance so lost any desire to continue that.

Anyone who interested in POSIX can dig out what changes and how
through cvs diffs.
2007-05-01 16:02:44 +00:00
Andrey A. Chernov
903fd42535 Preparing for upcoming POSIXed putenv() rewrite:
don't allow const as putenv() arg, dup it
2007-04-30 15:16:19 +00:00
Ruslan Ermilov
ae35e8ad88 - Recognize -g and -m in pstat(8) too.
- Document -g and -m support in swapinfo(8).

Reviewed by:	markm
2007-04-03 08:16:06 +00:00
Mark Murray
7e8409a7a9 Add -m (megabytes) and -g (gigabytes) options. I'm tired of being told
I can't do this.

MFC: 1 month
2007-04-01 20:28:37 +00:00
John Baldwin
897d31be9d Another crashdump fix: nfiles was renamed to openfiles in 5.x.
MFC after:	3 days
2007-02-14 04:20:41 +00:00
Robert Watson
a2e59d80d5 Print (total - used) as the amount of available swap for a swap device
when printing swapinfo output, rather than (total), as that is (strictly
speaking) more accurate.

Pointed out by:	Rob <spamrefuse at yahoo dot com>
MFC after:	3 days
2005-11-17 19:31:52 +00:00
Stefan Farfeleder
18b51f792f Remove unused variables. 2005-04-09 14:59:10 +00:00
Giorgos Keramidas
00191f86e0 Use a designator for initializing only one member of the nlist
structs, making pstat WARNS=3 clean on i386, sparc64 and amd64.

Bump WARNS level to 3.

Approved by:	sam, pjd
2005-03-21 18:11:31 +00:00
Giorgos Keramidas
7257230f7b - Add a -h flag to pstat to print swap sizes in "human readable"
format, with humanize_number(3).

- Move the common parts of the code that prints the sizes for a single
  swap device and the total to a single function to avoid repeating
  the humanize_number() stuff all over the place.

- Change the type of CONVERT() from intmax_t to int64_t, since this
  makes calling humanize_number() easier but cast the values to
  intmax_t before printing them, to make use of the %jd format that
  printf() supports.

- Document the new -h flag in the manpage and bump its date.

Approved by:	pjd
Useful tips:	brooks
MFC after:	2 weeks
2005-03-21 16:36:05 +00:00
Ruslan Ermilov
59a3c79da6 Sort sections. 2005-01-18 20:02:45 +00:00
David Schultz
6004362e66 Don't include sys/user.h merely for its side-effect of recursively
including other headers.
2004-11-27 06:51:39 +00:00
Diomidis Spinellis
7aaa48252b Corrected the description of the -t output columns to reflect reality.
MFC after:	2 weeks
2004-11-11 17:30:04 +00:00
Warner Losh
486c8cc4c6 Per letter dated July 22, 1999 remove 3rd clause of Berkeley derived software
(with permission of addtional copyright holders where appropriate)
2004-08-07 04:28:56 +00:00
Ruslan Ermilov
455fb174df Eliminated double whitespace. 2004-07-03 18:35:53 +00:00
Ruslan Ermilov
07bfccd71e Mechanically kill hard sentence breaks. 2004-07-02 23:13:00 +00:00
Poul-Henning Kamp
203bcaf51e Update kvm mode to match kernel changes. 2004-06-09 12:20:44 +00:00
Ruslan Ermilov
8482be06ec -N without -M is pointless. 2004-03-26 09:28:03 +00:00