| Commit message (Collapse) | Author | Age | Files | Lines |
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- 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().
Note that this version of the change for 11.x does not include freebsd11
kevent structures or _WANT_FREEBSD11_KEVENT. It also does not include
the change to decode the compat11.kevent system call in truss.
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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.
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Use more usual formatting for the EXAMPLES section of ktrace(1).
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Obtained from: CheriBSD (9cb420d6b7f04c1b7d2006180b80932e5d3fe50e)
MFC after: 1 week
Sponsored by: DARPA, AFRL
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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
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Requested by: Simon Gerraty <sjg@juniper.net>
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-t (it does not clear all tracepoints).
Submitted by: jmg, Eric van Gyzen <eric@vangyzen.net>
MFC after: 1 week
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as they can be quite noisy.
Requested by: Peter Jeremy
MFC after: 3 days
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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
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way in which it handles the -C, -c, -g and -p options.
MFC after: 3 weeks
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failures. It is included in the default set for ktrace(1) and kdump(1).
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MFC after: 1 Month.
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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
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- Note that 'y' (sysctl requests) is in the default set of trace points.
MFC after: 3 days
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Also add some missing $FreeBSD$ to keep svn happy.
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needed.
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Tested with: make universe
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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
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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
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PR: 85186
Submitted by: garys
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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
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including other headers.
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Standard sccsid[] area according to style(9).
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2) include stdlib.h for atoi.
3) staticise and constify.
4) add some missing prototypes.
5) add some parens to keep gcc happy.
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PR: docs/35361
Submitted by: Stefan Farfeleder <e0026813@stud3.tuwien.ac.at>
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PR: 34668
Submitted by: Stefan Farfeleder <e0026813@stud3.tuwien.ac.at>
Reviewed by: dd
Approved by: dd
MFC after: 1 week
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process clear.
PR: bin/15456
MFC after: 2 weeks
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getopt returns -1 not EOF.
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