src/usr.bin/ktrace, branch upstream/13.1.0

Make it clear what the userland traces are in the ktrace(1) man page.

2019-08-26T10:18:19Z

MFC after: 2 weeks

Decode kevent structures logged via ktrace(2) in kdump.

2017-11-25T04:49:12Z

- 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 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

General further adoption of SPDX licensing ID tags.

2017-11-20T19:49:47Z

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.

DIRDEPS_BUILD: Update dependencies.

2017-10-31T00:07:04Z

Improve the ktrace(1) man page to make it slightly more obvious that there

2017-07-24T16:58:54Z

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

Use more usual formatting for the EXAMPLES section of ktrace(1).

2017-07-21T13:27:25Z

MFC after: 2 weeks Sponsored by: DARPA, AFRL

Renumber copyright clause 4

2017-02-28T23:42:47Z

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 Pull Request: https://github.com/freebsd/freebsd/pull/96

Add a cross reference to ktrace(2).

2016-03-31T23:57:03Z

Obtained from: CheriBSD (9cb420d6b7f04c1b7d2006180b80932e5d3fe50e) MFC after: 1 week Sponsored by: DARPA, AFRL

Add META_MODE support.

2015-06-13T19:20:56Z

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

dirdeps.mk now sets DEP_RELDIR

2015-06-08T23:35:17Z