src-test2/usr.bin/ktrace, branch release/8.4.0

MFC 233925,236357:

2012-06-27T21:13:00Z

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, but are not enabled in the default set of trace points.

MFH r226504: Make ktrace(1) build cleanly at WARNS level 6

2012-02-09T09:24:52Z

Approved by: des (mentor)

MFC r219043:

2011-04-02T08:29:02Z

Teach kdump to understand sv_flags records in the trace files. MFC r219044: Update manual page to reflect latest changes of ABI description support. MFC r219138: Teach kdump to understand linux syscalls names too. Fix bug introduced in r219043: the kernel always dump native signal numbers, so no need to check the ABI in ktrpsig().

MFC 210068:

2010-07-23T15:16:27Z

- Sort list of trace points. - Note that 'y' (sysctl requests) is in the default set of trace points.

Add a new type of KTRACE record for sysctl(3) invocations. It uses the

2009-03-11T21:48:36Z

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

Spell -t option's argument by name.

2008-04-02T09:41:29Z

Fix usage string.

2008-03-20T09:53:45Z

This patch adds a new ktrace(2) record type, KTR_STRUCT, whose payload

2008-02-23T01:01:49Z

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 . PR: kern/117836 MFC after: 3 weeks

Allow the -c -f file options to actually execute.

2007-02-13T00:22:29Z

Add needed hyphens, note the KTRACE kernel option, bump doc date.

2006-11-06T15:17:50Z

PR: 85186 Submitted by: garys