src/lib/libsysdecode/flags.c, branch releng/14.2

libsysdecode: add a decoder for pollfd events

2024-03-18T15:52:58+00:00

We'll use this in another change to read pollfd arrays coming from a
successful poll(2) operation.

Reviewed by:	bapt, jhb

(cherry picked from commit bd23e71f91ceec5dfdffc28bbd0020849fdd20b4)

Remove $FreeBSD$: one-line .c pattern

2023-08-16T17:54:42+00:00

Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/

vm: Allow MAP_32BIT for all architectures

2023-08-14T17:20:20+00:00

Reviewed by:		alc, kib, markj
Differential revision:	https://reviews.freebsd.org/D41435

libsysdecode: Decode setitimer, getitimer which argument

2022-06-22T11:17:10+00:00

Reviewed by:		jhb
Differential revision:	https://reviews.freebsd.org/D35230
MFC after:		2 weeks

libsysdecode: For future use extract common code to a separate files

2022-06-22T10:12:21+00:00

Reviewed by:		jhb, emaste
Differential revision:	https://reviews.freebsd.org/D35353
MFC after:		2 weeks

libsysdecode: Fix decoding of Capsicum rights

2022-04-13T14:51:30+00:00

Capsicum rights are a bit tricky since some of them are subsets of
others, and one can have rights R1 and R2 such that R1 is a subset of
R2, but there is no collection of named rights whose union is R2.  So,
they don't behave like most other flag sets.  sysdecode_cap_rights(3)
does not handle this properly and so can emit misleading decodings.

Try to fix all of these problems:
- Include composite rights in the caprights table.
- Use a constructor to sort the caprights table such that "larger"
  rights appear first and thus are matched first.
- Don't print rights that are a subset of rights already printed, so as
  to minimize the length of the output.
- Print a trailing message if some of the specific rights are not
  matched by the table.

PR:		263165
Reviewed by:	pauamma_gundo.com (doc), jhb, emaste
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D34874

fd: add close_range(..., CLOSE_RANGE_CLOEXEC)

2022-03-03T17:21:58+00:00

For compatibility with Linux.

MFC after:	3 days
Reviewed by:	markj
Differential Revision:	https://reviews.freebsd.org/D34424

libsysdecode: decode _UMTX_OP flags

2020-12-09T03:22:44+00:00

Assume that UMTX_OP with a double underbar following is a flag, while any
underbar+alphanumeric combination immeiately following is an op.

This was a part of D27325.

Reviewed by:	kib

libsysdecode: account for invalid protection flags

2020-11-26T09:07:45+00:00

Reported by:	jhb
MFC with:	r368022

libsysdecode: correctly decode mmap flags

2020-11-25T16:30:57+00:00

r352913 added decoding of mmap PROT_MAX()'d flags but didn’t account for the
case where different values were specified for PROT_MAX and regular flags.
Fix it.

Submitted by:	sigsys_gmail.com
Reported by:	sigsys_gmail.com
MFC after:	7 days
Differential Revision:	https://reviews.freebsd.org/D27312