The GNU extension bits in the base system are old, no longer faithful
to upstream, and surprising in some regards. Switch to documenting
WITH_GNU_GREP_COMPAT and default GNU_GREP_COMPAT to OFF in the name of
good behavior.
According to http://www.regular-expressions.info, GNU extensions:
- Add missing quantifiers to BREs: \?, \+
- Add branching to BREs: \|
- Add backreferences (\1 through \9) to EREs
- Add \w, \W, \s, and \S corresponding to :alnum:, [^[:alnum:]],
:space:, and [^[:space:]] respectively
- Add word boundaries and anchors:
\b: word boundary
\B: not word boundary
\<: Strt of word
\>: End of word
\`: Start of subject string
\': End of subject string
These extensions are still available in /usr/bin/grep by default today,
as it is still GNU grep. As part of the bsdgrep migration plan these
extensions may be added to bsdgrep's regex support if necessary.
Submitted by: Kyle Evans <kevans91 at ksu.edu>
Reviewed by: cem
Differential Revision: https://reviews.freebsd.org/D10114
Bugs have been found in the fastmatch implementation as used in bsdgrep.
Some have been fixed (r316495) while fixes for others are in review
(D10098).
In comparison with the fastmatch implementation, Kyle Evans found that:
- regex(3)'s performance with literal expressions offers a speed
improvement over fastmatch
- regex(3)'s performance, both with simple BREs and EREs, seems to be
comparable
The regex implementation was imported in r226035, and the commit message
reports:
This is a temporary solution until the whole regex library is
not replaced so that BSD grep development can continue and the
backported code gets some review and testing. This change only
improves scalability slightly, there is no big performance boost
yet but several minor bugs have been found and fixed.
Introduce a WITH_/WITHOUT_BSD_GREP_FASTMATCH knob to support testing
of both approaches.
PR: 175314, 194823
Submitted by: Kyle Evans <kevans91 at ksu.edu>
Reviewed by: bdrewery (in part)
Differential Revision: https://reviews.freebsd.org/D10282
These have no effect (and WITHOUT_GNU is documented as having no
effect). I intend to later introduce a WITHOUT_GPL knob to serve a
similar purpose as WITHOUT_GNU's previously documented intent, but with
a more accurate name. To avoid confusion over the transition though just
remove the existing, nonfunctional ones.
Note that this commit also adds the default riscv settings for all
options since riscv was added to 'make targets' since the last time
this was generated.
Reminded by: emaste
FDC_DEBUG is not referenced in any c or header files but traces of it
still remain in other files.
PR: 105608
Reported by: Eugene Grosbein <ports AT grosbein DOT net>
Reviewed by: imp
Approved by: bcr (mentor)
MFC after: 7 days
Differential Revision: https://reviews.freebsd.org/D10303
- move sbuf_bcopyin(9) and sbuf_copyin(9) near sbuf_new_for_sysctl(9), as
all three functions are kernel-only APIs.
- add #ifdef _KERNEL around sbuf_*copyin and sbuf_new_for_sysctl(9) to
make it visually clear that they are kernel-only APIs.
MFC after: 2 months
Sponsored by: Dell EMC Isilon
This shortens the column count on many lines considerably.
While here, add "(void)" to sbuf_new_auto(3) for consistency with style(9)
recommendations.
MFC after: 2 months
Sponsored by: Dell EMC Isilon
using "-width". The http://mdocml.bsd.lv/mdoc/details/width.html
says: "Do not use macros in the argument specifying the width,
that's not portable. While GNU troff can handle it, mandoc cannot."
The same problem seems to exist in many other man pages.
Reviewed by: bapt, vangyzen
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D10238
Multiple periodic scripts sleep for a random amount of time in order to
mitigate the thundering herd problem. This is bad, because the sum of
multiple uniformly distributed random variables approaches a normal
distribution, so the problem isn't mitigated as effectively as it would be
with a single sleep.
This change creates a single configurable anticongestion sleep. periodic
will only sleep if at least one script requires it, and it will never sleep
more than once per invocation. It also won't sleep if periodic was run
interactively, fixing an unrelated longstanding bug.
PR: 217055
PR: 210188
Reviewed by: cy
MFC after: 3 weeks
Differential Revision: https://reviews.freebsd.org/D10211
The goal of this work is to remove the explicit dependency for ctl(4)
on iscsi(4), so end-users without iscsi(4) support in the kernel can
use ctl(4) for its other functions.
This allows those without iscsi(4) support built into the kernel to use
ctl(4) as a test mechanism. As a sidenote, this was possible around the
10.0-RELEASE period, but made impossible for end-users without iscsi(4)
between 10.0-RELEASE and 11.0-RELEASE.
Automatically load cfiscsi(4) from ctladm(8) and ctld(8) for backwards
compatibility with previously releases. The automatic loading feature is
compiled into the beforementioned tools if MK_ISCSI == yes when building
world.
Add a manpage for cfiscsi(4) and refer to it in ctl(4).
Differential Revision: D10099
MFC after: 2 months
Relnotes: yes
Reviewed by: mav, trasz
Sponsored by: Dell EMC Isilon
igor:
- Fix typos.
- Delete trailing whitespace.
manlint:
- Use .Fo/.Fc/.Fa when describing functions.
- Use .Xr.
- Fill in SEE ALSO section.
- Fix .Dt use: the section was specified incorrectly and the name
had a lowercase character.
- Continue new sentences on new lines.
Miscellaneous:
- Remove unnecessary quotes around "SEE ALSO" section headers.
- Sprinkle .Dv use in spots with constants.
Reported by: igor, make manlint
Sponsored by: Dell EMC Isilon
Add missing section number when referring to PCI_IOV_*INIT(9) with .Xr
from the other corresponding manpage.
MFC after: 1 week
Reported by: make manlint
Sponsored by: Dell EMC Isilon
- Expand a contraction [1].
- Add a missing section number when referring to uma(9) with .Xr .
MFC after: 1 week
Reported by: igor [1], make manlint [2]
Sponsored by: Dell EMC Isilon
- Use `Em` with `.It` macro when referring to other libraries, instead of
`Xr`.
- Use `.Em` instead of `.Xr` when referring to libraries.
- Remove commented out lines.
MFC after: 1 month
Reported by: make manlint
Sponsored by: Dell EMC Isilon
tests(7) should be grouped in the man section 7 group, not the section 8 group.
MFC after: 1 week
Reported by: make manlint
Sponsored by: Dell EMC Isilon
Describe (briefly) how to compile the filesystem into the kernel and
load as a module.
Reference cd9660(5) in mount(8) and mount_cd9660(8).
MFC after: 1 month
Sponsored by: Dell EMC Isilon
- Delete trailing whitespace
- Sort SEE ALSO order: mmap(2)'s Xr should come before nmount(2)'s Xr.
MFC after: 1 week
Reported by: make manlint
Sponsored by: Dell EMC Isilon
