Commit Graph

6 Commits

Author SHA1 Message Date
Michael Tuexen
1e6455d870 Add a function is decode the sinfo_flags of struct sctp_sndrcvinfo. 2018-01-14 14:27:42 +00:00
Michael Tuexen
a62bf68d3d Add suppor for the supported PR-SCTP policies. 2018-01-14 12:08:41 +00:00
John Baldwin
39a3a4386a Decode pathconf() names, *at() flags, and sysarch() numbers in libsysdecode.
Move tables that were previously in truss over to libsysdecode.  truss
output is unchanged, but kdump has been updated to decode these fields.
In addition, sysdecode_sysarch_number() should support all platforms
whereas the old table in truss only supported x86.
2017-09-04 05:34:36 +00:00
John Baldwin
ee8aa41dca Decode the 'who' argument passed to getrusage().
Add a new sysdecode_getrusage_who() which decodes the RUSAGE_* constant
passed as the first argument to getrusage().  Use this function in both
kdump and truss to decode the first argument to getrusage().

PR:		215448
Submitted by:	Anton Yuzhaninov <citrin+pr@citrin.ru>
MFC after:	1 month
2017-06-03 14:22:15 +00:00
John Baldwin
48f7957436 Update libsysdecode for getfsstat() 'flags' argument changing to 'mode'.
As a followup to r310638, update libsysdecode (and kdump) to decode the
'mode' argument to getfsstat().  sysdecode_getfsstat_flags() has been
renamed to sysdecode_getfsstat_mode() and now treats the argument as an
enumerated value rather than a mask of flags.
2017-01-03 01:39:05 +00:00
John Baldwin
9289f547a2 Move mksubr from kdump into libsysdecode.
Restructure this script so that it generates a header of tables instead
of a source file.  The tables are included in a flags.c source file which
provides functions to decode various system call arguments.

For functions that decode an enumeration, the function returns a pointer
to a string for known values and NULL for unknown values.

For functions that do more complex decoding (typically of a bitmask), the
function accepts a pointer to a FILE object (open_memstream() can be used
as a string builder) to which decoded values are written.  If the
function operates on a bitmask, the function returns true if any bits
were decoded or false if the entire value was valid.  Additionally, the
third argument accepts a pointer to a value to which any undecoded bits
are stored.  This pointer can be NULL if the caller doesn't care about
remaining bits.

Convert kdump over to using decoder functions from libsysdecode instead of
mksubr.  truss also uses decoders from libsysdecode instead of private
lookup tables, though lookup tables for objects not decoded by kdump remain
in truss for now.  Eventually most of these tables should move into
libsysdecode as the automated table generation approach from mksubr is
less stale than the static tables in truss.

Some changes have been made to truss and kdump output:
- The flags passed to open() are now properly decoded in that one of
  O_RDONLY, O_RDWR, O_WRONLY, or O_EXEC is always included in a decoded
  mask.
- Optional arguments to open(), openat(), and fcntl() are only printed
  in kdump if they exist (e.g. the mode is only printed for open() if
  O_CREAT is set in the flags).
- Print argument to F_GETLK/SETLK/SETLKW in kdump as a pointer, not int.
- Include all procctl() commands.
- Correctly decode pipe2() flags in truss by not assuming full
  open()-like flags with O_RDONLY, etc.
- Decode file flags passed to *chflags() as file flags (UF_* and SF_*)
  rather than as a file mode.
- Fix decoding of quotactl() commands by splitting out the two command
  components instead of assuming the raw command value matches the
  primary command component.

In addition, truss and kdump now build without triggering any warnings.
All of the sysdecode manpages now include the required headers in the
synopsis.

Reviewed by:	kib (several older versions), wblock (manpages)
MFC after:	2 months
Differential Revision:	https://reviews.freebsd.org/D7847
2016-10-17 22:37:07 +00:00