Commit Graph

72 Commits

Author SHA1 Message Date
Edward Tomasz Napierala
90a7bed401 Make it clear what the userland traces are in the ktrace(1) man page.
MFC after:	2 weeks
2019-08-26 10:18:19 +00:00
John Baldwin
ffb6607984 Decode kevent structures logged via ktrace(2) in kdump.
- Add a new KTR_STRUCT_ARRAY ktrace record type which dumps an array of
  structures.

  The structure name in the record payload is preceded by a size_t
  containing the size of the individual structures.  Use this to
  replace the previous code that dumped the kevent arrays dumped for
  kevent().  kdump is now able to decode the kevent structures rather
  than dumping their contents via a hexdump.

  One change from before is that the 'changes' and 'events' arrays are
  not marked with separate 'read' and 'write' annotations in kdump
  output.  Instead, the first array is the 'changes' array, and the
  second array (only present if kevent doesn't fail with an error) is
  the 'events' array.  For kevent(), empty arrays are denoted by an
  entry with an array containing zero entries rather than no record.

- Move kevent decoding tables from truss to libsysdecode.

  This adds three new functions to decode members of struct kevent:
  sysdecode_kevent_filter, sysdecode_kevent_flags, and
  sysdecode_kevent_fflags.

  kdump uses these helper functions to pretty-print kevent fields.

- Move structure definitions for freebsd11 and freebsd32 kevent
  structures to <sys/event.h> so that they can be shared with userland.
  The 32-bit structures are only exposed if _WANT_KEVENT32 is defined.
  The freebsd11 structures are only exposed if _WANT_FREEBSD11_KEVENT is
  defined.  The 32-bit freebsd11 structure requires both.

- Decode freebsd11 kevent structures in truss for the compat11.kevent()
  system call.

- Log 32-bit kevent structures via ktrace for 32-bit compat kevent()
  system calls.

- While here, constify the 'void *data' argument to ktrstruct().

Reviewed by:	kib (earlier version)
MFC after:	1 month
Differential Revision:	https://reviews.freebsd.org/D12470
2017-11-25 04:49:12 +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
Edward Tomasz Napierala
6e5f5f90ad Improve the ktrace(1) man page to make it slightly more obvious that there
are _two_ options that control its behaviour wrt child processes; slightly
improve the example[1], and add Xrefs.

Discussed with:	wblock [1]
MFC after:	2 weeks
Sponsored by:	DARPA, AFRL
2017-07-24 16:58:54 +00:00
Edward Tomasz Napierala
c5ed286463 Use more usual formatting for the EXAMPLES section of ktrace(1).
MFC after:	2 weeks
Sponsored by:	DARPA, AFRL
2017-07-21 13:27:25 +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
Brooks Davis
f4864c274b Add a cross reference to ktrace(2).
Obtained from:	CheriBSD (9cb420d6b7)
MFC after:	1 week
Sponsored by:	DARPA, AFRL
2016-03-31 23:57:03 +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
9268022b74 Merge from head@274682 2014-11-19 01:07:58 +00:00
John Baldwin
0b976534de Clarify that the -c argument clears the list of tracepoints specified by
-t (it does not clear all tracepoints).

Submitted by:	jmg, Eric van Gyzen <eric@vangyzen.net>
MFC after:	1 week
2014-08-26 21:21:57 +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
John Baldwin
5c506fb0b4 Don't trace or dump page fault records in the default set of tracepoints
as they can be quite noisy.

Requested by:	Peter Jeremy
MFC after:	3 days
2012-05-31 14:46:02 +00:00
John Baldwin
35818d2e94 Add new ktrace records for the start and end of VM faults. This gives
a pair of records similar to syscall entry and return that a user can
use to determine how long page faults take.  The new ktrace records are
enabled via the 'p' trace type, and are enabled in the default set of
trace points.

Reviewed by:	kib
MFC after:	2 weeks
2012-04-05 17:13:14 +00:00
Dag-Erling Smørgrav
99afdfe58d Make ktrace(1) build cleanly at WARNS level 6 by completely rethinking the
way in which it handles the -C, -c, -g and -p options.

MFC after:	3 weeks
2011-10-18 08:26:12 +00:00
Dag-Erling Smørgrav
c601ad8eeb Add a new trace point, KTRFAC_CAPFAIL, which traces capability check
failures.  It is included in the default set for ktrace(1) and kdump(1).
2011-10-11 20:37:10 +00:00
Kevin Lo
aa7e4bb466 Remove duplicated header files 2011-06-24 07:18:44 +00:00
Dmitry Chagin
7144d36fab Teach kdump to understand sv_flags records in the trace files.
MFC after:	1 Month.
2011-02-25 22:07:23 +00:00
Joel Dahl
da52b4caaf Remove the advertising clause from UCB copyrighted files in usr.bin. This
is in accordance with the information provided at
ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change

Also add $FreeBSD$ to a few files to keep svn happy.

Discussed with:	imp, rwatson
2010-12-11 08:32:16 +00:00
John Baldwin
d4523bd9cb - Sort list of trace points.
- Note that 'y' (sysctl requests) is in the default set of trace points.

MFC after:	3 days
2010-07-14 18:28:46 +00:00
Ed Schouten
b7946da96b Build usr.bin/ with WARNS=6 by default.
Also add some missing $FreeBSD$ to keep svn happy.
2010-01-02 10:27:05 +00:00
Xin LI
821df508e8 Revert most part of 200420 as requested, as more review and polish is
needed.
2009-12-13 03:14:06 +00:00
Xin LI
6f2d322192 Remove unneeded header includes from usr.bin/ except contributed code.
Tested with:	make universe
2009-12-11 23:35:38 +00:00
John Baldwin
a56be37e68 Add a new type of KTRACE record for sysctl(3) invocations. It uses the
internal sysctl_sysctl_name() handler to map the MIB array to a string
name and logs this name in the trace log.  This can be useful to see
exactly which sysctls a thread is invoking.

MFC after:	1 month
2009-03-11 21:48:36 +00:00
Ruslan Ermilov
da647ae946 Spell -t option's argument by name. 2008-04-02 09:41:29 +00:00
Dag-Erling Smørgrav
6567d14f5e Fix usage string. 2008-03-20 09:53:45 +00:00
Dag-Erling Smørgrav
60e15db992 This patch adds a new ktrace(2) record type, KTR_STRUCT, whose payload
consists of the null-terminated name and the contents of any structure
you wish to record.  A new ktrstruct() function constructs and emits a
KTR_STRUCT record.  It is accompanied by convenience macros for struct
stat and struct sockaddr.

In kdump(1), KTR_STRUCT records are handled by a dispatcher function
that runs stringent sanity checks on its contents before handing it
over to individual decoding funtions for each type of structure.
Currently supported structures are struct stat and struct sockaddr for
the AF_INET, AF_INET6 and AF_UNIX families; support for AF_APPLETALK
and AF_IPX is present but disabled, as I am unable to test it properly.

Since 's' was already taken, the letter 't' is used by ktrace(1) to
enable KTR_STRUCT trace points, and in kdump(1) to enable their
decoding.

Derived from patches by Andrew Li <andrew2.li@citi.com>.

PR:		kern/117836
MFC after:	3 weeks
2008-02-23 01:01:49 +00:00
Mike Pritchard
975f2e5cf7 Allow the -c -f file options to actually execute. 2007-02-13 00:22:29 +00:00
Tom Rhodes
df449c3551 Add needed hyphens, note the KTRACE kernel option, bump doc date.
PR:		85186
Submitted by:	garys
2006-11-06 15:17:50 +00:00
Robert Watson
9e92c8d486 When opening a trace file, open O_NONBLOCK so that ktrace doesn't stall
if the target is a fifo.  After opening a trace file, check that it is a
regular file, and if not, return an error.

MFC after:	3 days
Reported by:	kris
PR:		94278
2006-03-14 19:32:03 +00:00
Ruslan Ermilov
6c7216df78 Sort sections. 2005-01-18 13:43:56 +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
Philippe Charnier
65b386f1aa Do not start err(3) strings with uppercase nor dot terminate them.
Standard sccsid[] area according to style(9).
2003-02-05 14:25:43 +00:00
David E. O'Brien
e026a48c34 Consistently use FBSDID 2002-06-30 05:25:07 +00:00
Mark Murray
01588bbd2b Warnings fix; ANSIfy, constify, mark unused function parameter(s). 2002-04-28 13:00:16 +00:00
Philippe Charnier
e8937ba009 Use `The .Nm utility' 2002-04-20 12:18:28 +00:00
David Malone
ebdb213b72 1) Clean up vendor and ID strings.
2) include stdlib.h for atoi.
3) staticise and constify.
4) add some missing prototypes.
5) add some parens to keep gcc happy.
2002-04-01 10:49:11 +00:00
Warner Losh
f1bb2cd2aa remove __P 2002-03-22 01:22:50 +00:00
Giorgos Keramidas
943c2638bf Consistently refer to the trace file of ktrace as 'trfile'.
PR:		docs/35361
Submitted by:	Stefan Farfeleder <e0026813@stud3.tuwien.ac.at>
2002-03-03 01:12:25 +00:00
Peter Pentchev
fef3edecbb Describe the '+' option in the -t trace string.
PR:		34668
Submitted by:	Stefan Farfeleder <e0026813@stud3.tuwien.ac.at>
Reviewed by:	dd
Approved by:	dd
MFC after:	1 week
2002-02-11 09:03:34 +00:00
Bruce Evans
6eabd84580 Compensate for "Compensate for header dethreading" by backing it out. 2001-10-10 17:48:44 +00:00
Dima Dorfman
f247324df7 Remove whitespace at EOL. 2001-07-15 08:06:20 +00:00
Ruslan Ermilov
625003720a mdoc(7) police: removed HISTORY info from the .Os call. 2001-07-10 14:16:33 +00:00
Ruslan Ermilov
33f6985557 mdoc(7) police: add missing .Ar in SYNOPSIS. 2001-07-05 06:11:10 +00:00
Mike Heffner
24b9685ca9 Sync manpage and usage. Also fix bug that would always interpret a -c as a
process clear.

PR:	bin/15456
MFC after:	2 weeks
2001-06-27 02:52:57 +00:00