share/mk/: $TROFFFLAGS: Use a larger font size

Link: <https://journals.uc.edu/index.php/vl/article/view/5765>
Reported-by: Paul Eggert <eggert@cs.ucla.edu>
Suggested-by: "G. Branden Robinson" <branden@debian.org>
Cc: "Thomas E. Dickey" dickey@his.com
Signed-off-by: Alejandro Colomar <alx@kernel.org>

init_module.2: Document MODULE_INIT_COMPRESS_FILE flag

finit_module() supports the MODULE_INIT_COMPRESS_FILE flag since
Linux 5.17. See commit b1ae6dc41eaaa ("module: add in-kernel support
for decompressing")

During implementation of a secure module loader in GyroidOS, we
wanted to filter unsafe module parameters. To verify that only the
two documented flags which are disabling sanity checks are unsafe,
we had a look in the current kernel implementation.

We discovered that this new flag MODULE_INIT_COMPRESS_FILE was added.
Having a deeper look at the code, we also discovered that a new error
code EOPNOTSUPP is possible within newer kernels.

The inital commit only supported gzip and xz compression algorithms.
Support for zstd was added in Linux 6.2 by commit 169a58ad824d8
("module/decompress: Support zstd in-kernel decompression")

Signed-off-by: Michael Weiß <michael.weiss@aisec.fraunhofer.de>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

sigwait.3: Note sigprocmask(2) requirement, explicitly link sigtimedwait(2)/NOTES

This comes from a real user complaint. sigwait(3) is the most obvious
of the family, and it doesn't mention any of the usage details.
Most of these can be crosslinked, but not mentioning the sigprocmask(2)
requirement is malice.

Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

getpagesize.2, syscalls.2: Modernization

Remove the HP-UX portability advice, since getpagesize() is a slightly
better option than sysconf() for Linux systems.

Explain why this function exists, and why this man page is in the wrong
section.  (The previous text tried to do both at the same, which was
confusing.) Also explain how the vast majority of architectures that
don't have a syscall (but do support multiple page sizes) actually work.

Also de-emphasize the glibc 2.0 bug, since most people don't need to
worry about compatibility with versions of glibc from 1997.

Finally, change "not on x86" in syscalls.2 to say where there _is_ a
syscall.

Co-developed-by: Elliott Hughes <enh@google.com>
Co-developed-by: Alejandro Colomar <alx@kernel.org>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

getgrouplist.3: EXAMPLES: Fix error handling for getpwnam(3)

Signed-off-by: Fedor Lapshin <fe.lap.prog@gmail.com>
Co-developed-by: Alejandro Colomar <alx@kernel.org>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/: Useful Use of Cat

Simplify a pipeline, by using cat(1) to actually catenate stuff.

Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/: Reorganize files for generating the PDF book

Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/: Generate the fonts during the build

Suggested-by: "G. Branden Robinson" <branden@debian.org>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

etc/clang-tidy/config.yaml: -llvm-header-guard

Signed-off-by: Alejandro Colomar <alx@kernel.org>

etc/cpplint/cpplint.cfg: -build/header_guard

Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/: $CFLAGS: -Wno-reserved-identifier, -Wno-unused-macros

Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/: lint-c-iwyu: Add exceptions

Signed-off-by: Alejandro Colomar <alx@kernel.org>

shmop.2: EXAMPLES: ffix

Signed-off-by: Alejandro Colomar <alx@kernel.org>

man*/: EXAMPLES: Add include guards

Signed-off-by: Alejandro Colomar <alx@kernel.org>

man*/: EXAMPLES: Fix includes

Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/: lint-c: Lint headers from EXAMPLES

Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/: Sync with liba2i's build system

Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/: build-pdf*, install-pdf*: Rename targets for consistency

Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/, scripts/LinuxManBook/build.sh: Embed script in the makefiles

This is done for simplifying, and as a side effect, it also allows
much more control on the script (e.g., TROFFFLAGS).

Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/: [un]install-pdf: Add target to install the PDF book

Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/: $EXTRAVERSION: Add variable to append to the version

Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/: Derive $DISTNAME from $DISTVERSION

Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/: Reorganize build system

Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/: dist: Don't stamp the version on the manual pages

This will allow downstream packages to set their own version, just by
setting $DISTVERSION.

It will be stamped at `make install` time.

Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/: $MANPAGEDATECMD: Use a variable for setting the date of manual pages

Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/: build-*: Specify manual pages' version and date

Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/: Fix includes

Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/: build-man: Split rule

Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/: Use more robust regex

Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/: build-book, build-man, install-man: Specify version and date

Each page has its own date.

Add new 'build-man' target, which stamps the date and version in the
pages (in $builddir, not the source ones).

Build-system internal stuff:
$CURDIR will be used for the build system, while $srcdir will be
used for the project root of the repository.  This helps use
this build system in other projects.

Signed-off-by: Alejandro Colomar <alx@kernel.org>

scripts/LinuxManBook/prepare.pl: Use more robust pipelines

Signed-off-by: Alejandro Colomar <alx@kernel.org>

GNUmakefile: help: wfix

Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/: Reorganize dependencies

Use one directory per each (Debian) package, and one file per command.

Signed-off-by: Alejandro Colomar <alx@kernel.org>

GNUmakefile: help: Hide variables not meant for users

Signed-off-by: Alejandro Colomar <alx@kernel.org>

Start of man-pages-NEXT: Move Changes to Changes.old

Signed-off-by: Alejandro Colomar <alx@kernel.org>

lsm: Released 6.7

Signed-off-by: Alejandro Colomar <alx@kernel.org>

Changes: Ready for 6.7

Signed-off-by: Alejandro Colomar <alx@kernel.org>

Changes: git(1) already shows contributors

Signed-off-by: Alejandro Colomar <alx@kernel.org>

GNUmakefile, INSTALL, RELEASE: Expand 'make help' to document dependencies

Signed-off-by: Alejandro Colomar <alx@kernel.org>

GNUmakefile: help: Add a simple help

It documents how to actually get the targets and variables with a
pipeline.

Signed-off-by: Alejandro Colomar <alx@kernel.org>

GNUmakefile: Use a more portable $SHELL

Signed-off-by: Alejandro Colomar <alx@kernel.org>

GNUmakefile: Remove help

It gets out of date easily, and it's always more accurate to actually
read the makefiles, or run a command that parses them for us.
In the case of .PHONY targets, or available variables, here are two
commands that can help:

$ make nothing -p \
| grep '^\.PHONY:' \
| tr ' ' '\n' \
| grep -v '^\.PHONY:' \
| sort;

$ grep -rho '^[^[:space:]].*=' GNUmakefile share/mk/configure/;

Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/lint, share/mk/: Move *.grep files

They're part of the build system, so put them under <share/mk/>.

Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/: Split long line

Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/: Rename variables

Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/: We don't use man2html(1) any more

Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/: $htmlext: Remove unused variable

Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/: Print SED rather than CP

That's what we use.

Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/: wsfix

Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/: sort(1) input to tar(1)

Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/: Consistency fixes in copyright lines

Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/: build-html: Skip known errors (in groff-1.23.0)

Signed-off-by: Alejandro Colomar <alx@kernel.org>

LICENSES/: Add LGPL-3.0-or-later and LGPL-3.0-linking-exception

Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/: Update license

Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/: Use grohtml(1) instead of man2html(1)

man2html(1) crashes on tzfile(5), and the upstream project is defunct.

Link: <https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1067022>
Cc: Paul Eggert <eggert@cs.ucla.edu>
Cc: "G. Branden Robinson" <branden@debian.org>
Cc: Robert Luberda <robert@debian.org>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

proc_pid_io.5: Move note to CAVEATS

Cc: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

bpf.2: wfix

Signed-off-by: Jing Peng <pj.hades@gmail.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

ip.7: Some socket options are not supported by SOCK_STREAM

It was not made clear in several socket options that they were not
supported by SOCK_STREAM; this patch fixes that.

Socket options not supported by SOCK_STREAM are handled in the
ip_cmsg_recv_offset() function in <net/ipv4/ip_sockglue.c>.  The
function is called for udp sockets, and indirectly by ping and raw
sockets, but not for STREAM sockets, as they don't support these
options.

Link: <https://lore.kernel.org/linux-man/ejhphmjh74ebtk4br3id66f27a4yoh4aukrcz7m6dp7acsu6zr@crtueyadqzmp/T/#mb298ac7f71a348d1e6b423cfa32bfad9c28efa40>
Link: <https://lore.kernel.org/linux-man/ejhphmjh74ebtk4br3id66f27a4yoh4aukrcz7m6dp7acsu6zr@crtueyadqzmp/T/#u>
Signed-off-by: Oliver Crumrine <ozlinuxc@gmail.com>
Cc: Peter Seiderer <ps.report@gmx.net>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

proc_pid_io.5: Dewafflify

This page copies verbatim the contents of
Documentation/filesystems/proc.rst, added wholesale in
commit f9c99463b0cd05603d125c915e2886d55a686b82 ("[PATCH] Documentation
for io-accounting / reporting via procfs") in 2007.

As such, it mirrors the sensibilities of the time ‒
writing "successful read returns" as "data pulled from storage. actually
just the data the process gave to read(). this also means from non-regular
files! whether the data was pulled from storage doesn't matter actually
(obligatory cache mention)"
for the modern reader this is just a lot of waffling
(note also that processes give no data to read()!)
‒ and sensibilities of the sheepish implementer in kernel documentation ‒
"an attempt" for a well-defined kernel behaviour, mentioning the
"current implementation", consistent mentions of specific kernel-internal
caching mechanisms, "the big inaccuracy here".

Re-write to be more useful and less misleading as documentation;
the syscall enumeration is accurate for kernel v6.8, but the sysc? stats
are also bumped by kernel_{read,write}(), which is sometimes used by too
many syscalls in too many scenarios to usefully enumerate.

Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

proc_pid_io.5: Stats include children

This file is like getrusage(2) RUSAGE_SELF + RUSAGE_CHILDREN,
the current wording implies it's like just RUSAGE_SELF.

Compare:
  #include <fcntl.h>
  #include <signal.h>
  #include <string.h>
  #include <sys/wait.h>
  #include <unistd.h>

  void copy() {
    char buf[1024];
    int fd = open("/proc/self/io", 0);
    write(1, buf, read(fd, buf, sizeof(buf)));
    close(fd);
  }

  int main() {
    copy();
    copy();
    if (!fork()) {
    zero:;
      int fd = open("/dev/zero", 0);
      char buf[64 * 1024] = {};
      write(1, buf, 10000);
      for (int i = 0; i < 1000; ++i)
        read(fd, buf, sizeof(buf));
      _exit(0);
    }
    sleep(1);
    copy();
    wait(NULL);
    copy();
    signal(SIGCHLD, SIG_IGN);
    if (!fork())
      goto zero;
    sleep(1);
    copy();
    wait(NULL);
    copy();
  }
yielding
  rchar: 3980
  wchar: 0
  syscr: 9
  syscw: 0
  read_bytes: 2968
  write_bytes: 0
  cancelled_write_bytes: 0

  rchar: 4076
  wchar: 96
  syscr: 10
  syscw: 1
  read_bytes: 2968
  write_bytes: 96
  cancelled_write_bytes: 0

  rchar: 4175
  wchar: 195
  syscr: 11
  syscw: 2
  read_bytes: 2968
  write_bytes: 195
  cancelled_write_bytes: 0

  rchar: 65540276
  wchar: 10296
  syscr: 1012
  syscw: 4
  read_bytes: 2968
  write_bytes: 10296
  cancelled_write_bytes: 0

  rchar: 65540387
  wchar: 10407
  syscr: 1013
  syscw: 5
  read_bytes: 2968
  write_bytes: 10407
  cancelled_write_bytes: 0

  rchar: 65540498
  wchar: 10518
  syscr: 1014
  syscw: 6
  read_bytes: 2968
  write_bytes: 10518
  cancelled_write_bytes: 0

Just s/process/& and its waited-for children/ but re-broken per review.

Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

tzfile.5: ffix

Cc: "G. Branden Robinson" <branden@debian.org>
Cc: Paul Eggert <eggert@cs.ucla.edu>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

tzfile.5: Avoid crashing man2html(1)

Link: <https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1067022>
Cc: Paul Eggert <eggert@cs.ucla.edu>
Cc: "G. Branden Robinson" <branden@debian.org>
Cc: Robert Luberda <robert@debian.org>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

tzfile.5, tzselect.8, zdump.8, zic.8: Refresh pages

Refreshed from tzdb-2024a.

Signed-off-by: Alejandro Colomar <alx@kernel.org>

bpf-helpers.7: Refresh page

Scripted change:

$ ~/src/linux/linux/6.8/scripts/bpf_doc.py | rst2man > man7/bpf-helpers.7

Signed-off-by: Alejandro Colomar <alx@kernel.org>

getgrouplist.3: Use same type in both sides of comparison

This removes a warning.

Signed-off-by: Alejandro Colomar <alx@kernel.org>

unix.7: EXAMPLES: server.c: End connection with END

Client wants to send END while server already closed the connection on
DOWN, so connection is broken instead of the Result = 0 in the sample on
sending a single DOWN.
Now, the server disconnects only on first END. After DOWN, all further
processing of number stops.
Patch does not handle cases of double END sending, multiple clients etc.

Fixes: 15545eb6d7ae ("unix.7: Add example")
Cc: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Lili Püspök <poordirtylili@gmail.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

printf.3: Return the number of bytes printed, not characters

From <https://pubs.opengroup.org/onlinepubs/9699919799/functions/printf.html>:

    Upon successful completion, the dprintf(), fprintf(), and printf()
    functions shall return the number of bytes transmitted.

Closes: <https://bugzilla.kernel.org/show_bug.cgi?id=218600>
Reported-by: <quirin.blaeser@freenet.de>
Signed-off-by: Jeremy Baxter <jtbx@disroot.org>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

utf-8.7: ffix

Signed-off-by: Alejandro Colomar <alx@kernel.org>

utf-8.7: ffix

Signed-off-by: Alejandro Colomar <alx@kernel.org>

printf.h.3head: tfix

Signed-off-by: Alejandro Colomar <alx@kernel.org>

getrusage.2, proc_pid_io.5: Crosslink

These serve the same purpose from different perspectives.

Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

getrusage.2: proc(5) /proc/pid/stat -> proc_pid_stat(5)

Fixes: bbc21bc4dbef ("proc.5, proc_pid_stat.5: Split /proc/PID/stat from proc(5)")
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

proc_pid_io.5: Mention atomicity in atomicity note

And drop "current implementation"
(wording still literal from Documentation/filesystems/proc.rst).
Of course this describes the current implementation.

Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

proc_pid_io.5: wfix

Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

scripts/LinuxManBook/build.sh, share/mk/: Use command variables

Signed-off-by: Alejandro Colomar <alx@kernel.org>

logb.3: floor(log2(fabs(x))) has rounding errors

Link: <https://inbox.sourceware.org/libc-alpha/20240305150131.GD3653@qaa.vinc17.org/T/#m3ceecda630012995339bcc5448fee451cf277a8b>
Reported-by: Vincent Lefevre <vincent@vinc17.net>
Suggested-by: Vincent Lefevre <vincent@vinc17.net>
Cc: Morten Welinder <mwelinder@gmail.com>
Cc: Adhemerval Zanella Netto <adhemerval.zanella@linaro.org>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

scripts/LinuxManBook/prepare.pl: Support some autogenerated pages from other projects

And remove a warning about an experimental perl feature, by using a
while instead of a for loop.

Signed-off-by: Alejandro Colomar <alx@kernel.org>

TIMESPEC_TO_TIMEVAL.3, TIMEVAL_TO_TIMESPEC.3: Document these macros

Reported-by: Guillem Jover <guillem@hadrons.org>
Reviewed-by: Oskari Pirhonen <xxc3ncoredxx@gmail.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/configure/build-depends/cc.mk: Use -Wno-unsafe-buffer-usage with clang(1)

That warning has false positives, such as in unix(7).

Signed-off-by: Alejandro Colomar <alx@kernel.org>

unix.7: Use a 'ssize_t' for the return value of read(2) and write(2)

Signed-off-by: Alejandro Colomar <alx@kernel.org>

unix.7: Use 'int' to iterate over 'argv'

'argc' is an 'int', so we should compare it with a variable of the same
type.

Signed-off-by: Alejandro Colomar <alx@kernel.org>

unix.7: Use int main(void)

The arguments were unused.

Signed-off-by: Alejandro Colomar <alx@kernel.org>

unix.7: Remove spurious #include

Signed-off-by: Alejandro Colomar <alx@kernel.org>

unix.7: Build example programs

Signed-off-by: Alejandro Colomar <alx@kernel.org>

read.2: tfix

Signed-off-by: Hugo Gabriel Eyherabide <hugogabiel.eyherabide@gmail.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

log2.3, log10.3: wfix

Reported-by: Morten Welinder <mwelinder@gmail.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

cbrt.3: wfix: Cube roots are rarely representable

On Thu, Feb 29, 2024 at 07:28:10PM -0500, Morten Welinder wrote:
> The phrase "every representable real value has a representable real
> cube root" is wrong.  In fact, a representable cube root is quite
> rare.

Link: <https://lore.kernel.org/linux-man/ZeYKUOKYS7G90SaV@debian/T/#mff0ab388000c6afdb5e5162804d4a0073de481de>
Reported-by: Morten Welinder <mwelinder@gmail.com>
Cowritten-by: Morten Welinder <mwelinder@gmail.com>
Cc: Adhemerval Zanella Netto <adhemerval.zanella@linaro.org>
Cc: Vincent Lefevre <vincent@vinc17.net>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

significand.3: significand() uses FLT_RADIX, not 2

It's implemented using scalb(), which uses FLT_RADIX.

Reported-by: Morten Welinder <mwelinder@gmail.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

logb.3: logb(x) is floor(log2(fabs(x)))

log2(3) doesn't accept negative input, but it seems logb(3) does accept
it.

Link: <https://lore.kernel.org/linux-man/ZeYKUOKYS7G90SaV@debian/T/#u>
Reported-by: Morten Welinder <mwelinder@gmail.com>
Cc: Adhemerval Zanella Netto <adhemerval.zanella@linaro.org>
Cc: Vincent Lefevre <vincent@vinc17.net>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/: dist: Don't package .git/

Signed-off-by: Alejandro Colomar <alx@kernel.org>

clock_getres.2: HISTORY: Clarify that POSIX.1-2008 only makes mandatory the functions

The different clocks are still optional.

Closes: <https://bugzilla.kernel.org/show_bug.cgi?id=218452>
Fixes: 4131356cdab8 ("man*/, man-pages.7: VERSIONS, STANDARDS, HISTORY: Reorganize sections")
Reported-by: Enrique Garcia <cquike@arcor.de>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

cgroups.7: tfix

Closes: <https://bugzilla.kernel.org/show_bug.cgi?id=218105>
Reported-by: Göran Uddeborg <goeran@uddeborg.se>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/: Add missing include

Signed-off-by: Alejandro Colomar <alx@kernel.org>

clock_nanosleep.2: Use 't' rather than 'request'

It seems much more clear.

Cc: Elliott Hughes <enh@google.com>
Cc: Stefan Puiu <stefan.puiu@gmail.com>
Cc: Bruno Haible <bruno@clisp.org>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

nanosleep.2: Use 'duration' rather than 'request'

It seems much more clear.

Suggested-by: Elliott Hughes <enh@google.com>
Cc: Stefan Puiu <stefan.puiu@gmail.com>
Cc: Bruno Haible <bruno@clisp.org>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

man*/: epoll_*(), fcntl(), flock(), ioctl(), msgctl(), *prctl(), ptrace(), quotactl(), reboot(), semctl(), shmctl(), lockf(): Consistently use 'op' and 'operation'

Reported-by: Bruno Haible <bruno@clisp.org>
Cc: Elliott Hughes <enh@google.com>
Cc: Stefan Puiu <stefan.puiu@gmail.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

Changes.old: tfix

Signed-off-by: Jakub Wilk <jwilk@jwilk.net>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/: distcheck: Rewrite most of it

This implementation is simpler.

Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/: build-ex-src: Support long $DISTNAME

When $DISTNAME is too long, mandoc(1) breaks the last line.  The last
two lines can always be removed safely, which makes it work also in this
case.

Signed-off-by: Alejandro Colomar <alx@kernel.org>

share/mk/: Fix path

Signed-off-by: Alejandro Colomar <alx@kernel.org>