proc*.5: Make sashimi

[Merge tag 'proc-sashimi-v1' of <git://www.alejandro-colomar.es/src/alx/linux/man-pages/man-pages.git>]

proc(5) was a huge page, which was quite hard to maintain, extend, read,
and refer to.  Split the page into small pages for the different
directories and files within /proc.  Some pages are still too large
(e.g., proc_sys(5)), and will some day be split even more.

This split keeps the contents of the original page, without modifying
anything; not even the formatting.

The only thing that has been modified in this patches, is that
directories are consistently represented with a trailing slash.

For the file name of the pages, we've used the name of the interface
(e.g., /proc/pid/), removing the leading and trailing '/'s and then
translating the remaining ones as `tr / _` (e.g., proc_pid.5).  The
title of the pages (TH) is consistent with this.  The NAME of the pages,
however, is the actual path name of the interfaces.

The man page references have not been updated, as that was a more
complex and tedious work, so I expect that they'll be slowly updated as
we and users find out.

Link: <https://lore.kernel.org/linux-man/e3a5bc09-e835-9819-4aaa-12959495ac59@kernel.org/T/>
Acked-by: Oskari Pirhonen <xxc3ncoredxx@gmail.com>
Acked-by: Günther Noack <gnoack@google.com>
Acked-by: "G. Branden Robinson" <g.branden.robinson@gmail.com>
Cc: Brian Inglis <Brian.Inglis@Shaw.ca>
Cc: Ingo Schwarze <schwarze@usta.de>
Cc: Colin Watson <cjwatson@debian.org>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

*.mk: Allow any combination of common suffixes to manual pages

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

*.mk: Tighten regex for finding manual pages

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

INSTALL, README, RELEASE: Update references to GNUmakefile

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

GNUmakefile: tfix

Fixes: 6701269b7cd5 ("GNUmakefile: mv Makefile GNUmakefile")
Signed-off-by: Alejandro Colomar <alx@kernel.org>

GNUmakefile: mv Makefile GNUmakefile

We require GNU Make.  Let's make it explicit by using the appropriate
GNU Make makefile name.  This will avoid users innocently running other
make(1) implementations and be confused by errors, as happened with Ingo
Schwarze long ago.

Cc: Ingo Schwarze <schwarze@openbsd.org>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

scripts/sortman: Tighten regex

This avoids misinterpreting file names like .../binutils-2.17/...

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

itimerspec.3type: This type is in POSIX.1-2001

And POSIX does not mention anything about <sys/timerfd.h>.

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

itimerspec.3type: tfix

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

clock_t.3type: tfix

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

proc.5: Clean up after making sashimi of this page

-  Remove outdated comments (they're on git, so it's not worth moving
   them to the appropriate pages).

-  Relicense with GPL-3.0-or-later, and add myself to copyleft.

-  Remove now-empty "Files and directories" subsection.

-  Remove now-irrelevant note about the page being a monster, which it
   is not anymore.

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

proc.5, proc_zoneinfo.5: Split /proc/zoneinfo from proc(5)

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

proc.5, proc_vmstat.5: Split /proc/vmstat from proc(5)

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

proc.5, proc_version.5: Split /proc/version from proc(5)

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

proc.5, proc_uptime.5: Split /proc/uptime from proc(5)

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

proc.5, proc_tty.5: Split /proc/tty from proc(5)

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

proc.5, proc_timer_stats.5: Split /proc/timer_stats from proc(5)

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

proc.5, proc_timer_list.5: Split /proc/timer_list from proc(5)

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

proc.5, proc_sysvipc.5: Split /proc/sysvipc/ from proc(5)

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

proc.5, proc_sysrq-trigger.5: Split /proc/sysrq-trigger from proc(5)

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

proc.5, proc_sys.5: Split /proc/sys/ from proc(5)

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

proc.5, proc_swaps.5: Split /proc/swaps from proc(5)

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

proc.5, proc_stat.5: Split /proc/stat from proc(5)

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

proc.5, proc_slabinfo.5: Split /proc/slabinfo from proc(5)

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

proc.5, proc_scsi.5: Split /proc/scsi/ from proc(5)

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

proc.5, proc_profile.5: Split /proc/profile from proc(5)

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

proc.5, proc_pci.5: Split /proc/pci from proc(5)

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

proc.5, proc_partitions.5: Split /proc/partitions from proc(5)

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

proc.5, proc_mtrr.5: Split /proc/mtrr from proc(5)

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

proc.5, proc_modules.5: Split /proc/modules from proc(5)

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

proc.5, proc_meminfo.5: Split /proc/meminfo from proc(5)

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

proc.5, proc_malloc.5: Split /proc/malloc from proc(5)

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

proc.5, proc_locks.5: Split /proc/locks from proc(5)

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

proc.5, proc_loadavg.5: Split /proc/loadavg from proc(5)

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

proc.5, proc_kpageflags.5: Split /proc/kpageflags from proc(5)

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

proc.5, proc_kpagecount.5: Split /proc/kpagecount from proc(5)

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

proc.5, proc_kpagecgroup.5: Split /proc/kpagecgroup from proc(5)

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

proc.5, proc_kmsg.5: Split /proc/kmsg from proc(5)

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

proc.5, proc_keys.5, proc_key-users.5: Split /proc/keys (and /proc/key-users) from proc(5)

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

proc.5, proc_kcore.5: Split /proc/kcore from proc(5)

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

proc.5, proc_kallsyms.5, proc_ksyms.5: Split /proc/kallsyms (and /proc/ksyms) from proc(5)

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

proc.5, proc_ioports.5: Split /proc/ioports from proc(5)

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

proc.5, proc_iomem.5: Split /proc/iomem from proc(5)

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

proc.5, proc_interrupts.5: Split /proc/interrupts from proc(5)

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

proc.5, proc_ide.5: Split /proc/ide/ from proc(5)

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

proc.5, proc_fs.5: Split /proc/fs/ from proc(5)

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

proc.5, proc_filesystems.5: Split /proc/filesystems from proc(5)

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

proc.5, proc_fb.5: Split /proc/fb from proc(5)

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

proc.5, proc_execdomains.5: Split /proc/execdomains from proc(5)

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

proc.5, proc_driver.5: Split /proc/driver/ from proc(5)

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

proc.5, proc_dma.5: Split /proc/dma from proc(5)

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

proc.5, proc_diskstats.5: Split /proc/diskstats from proc(5)

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

proc.5, proc_devices.5: Split /proc/devices from proc(5)

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

proc.5, proc_cpuinfo.5: Split /proc/cpuinfo from proc(5)

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

proc.5, proc_crypto.5: Split /proc/crypto from proc(5)

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

proc.5, proc_config.gz.5: Split /proc/config.gz from proc(5)

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

proc.5, proc_cmdline.5: Split /proc/cmdline from proc(5)

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

proc.5, proc_cgroups.5: Split /proc/cgroups from proc(5)

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

proc.5, proc_bus.5: Split /proc/bus/ from proc(5)

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

proc.5, proc_buddyinfo.5: Split /proc/buddyinfo from proc(5)

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

proc.5, proc_apm.5: Split /proc/apm from proc(5)

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

proc.5, proc_tid_children.5: Split /proc/TID/children from proc(5)

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

proc.5, proc_pid_task.5, proc_tid.5, proc_thread-self.5: Split /proc/PID/task/ (and /proc/TID/, /proc/thread-self/) from proc(5)

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

proc.5, proc_pid.5, proc_self.5: Split /proc/PID/ (and /proc/self/) from proc(5)

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

proc.5, proc_pid_wchan.5: Split /proc/PID/wchan from proc(5)

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

proc.5, proc_pid_timerslack_ns.5: Split /proc/PID/timerslack_ns from proc(5)

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

proc.5, proc_pid_timers.5: Split /proc/PID/timers from proc(5)

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

proc.5, proc_pid_syscall.5: Split /proc/PID/syscall from proc(5)

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

proc.5, proc_pid_status.5: Split /proc/PID/status from proc(5)

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

proc.5, proc_pid_statm.5: Split /proc/PID/statm from proc(5)

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

proc.5, proc_pid_stat.5: Split /proc/PID/stat from proc(5)

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

proc.5, proc_pid_stack.5: Split /proc/PID/stack from proc(5)

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

proc.5, proc_pid_smaps.5: Split /proc/PID/smaps from proc(5); XXX: what's s in smaps?

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

proc.5, proc_pid_setgroups.5: Split /proc/PID/setgroups from proc(5)

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

proc.5, proc_pid_seccomp.5: Split /proc/PID/seccomp from proc(5)

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

proc.5, proc_pid_projid_map.5: Split /proc/PID/projid_map from proc(5)

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

proc.5, proc_pid_root.5: Split /proc/PID/root/ from proc(5)

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

proc.5, proc_pid_personality.5: Split /proc/PID/personality from proc(5)

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

proc.5, proc_pid_pagemap.5: Split /proc/PID/pagemap from proc(5)

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

proc.5, proc_pid_oom_score.5: Split /proc/PID/oom_score from proc(5)

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

proc.5, proc_pid_oom_score_adj.5, proc_pid_oom_adj.5: Split /proc/PID/oom_score_adj (and /proc/PID/oom_adj) from proc(5)

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

proc.5, proc_pid_numa_maps.5: Split /proc/PID/numa_maps from proc(5)

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

proc.5, proc_pid_ns.5: Split /proc/PID/ns/ from proc(5)

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

proc.5, proc_pid_net.5, proc_net.5: Split /proc/PID/net/ (and /proc/net/) from proc(5)

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

proc.5, proc_pid_mountstats.5: Split /proc/PID/mountstats from proc(5)

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

proc.5, proc_pid_mounts.5, proc_mounts.5: Split /proc/PID/mounts (and /proc/mounts) from proc(5)

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

proc.5, proc_pid_mountinfo.5: Split /proc/PID/mountinfo from proc(5)

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

proc.5, proc_pid_mem.5: Split /proc/PID/mem from proc(5)

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

proc.5, proc_pid_maps.5: Split /proc/PID/maps from proc(5)

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

proc.5, proc_pid_map_files.5: Split /proc/PID/map_files/ from proc(5)

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

proc.5, proc_pid_limits.5: Split /proc/PID/limits from proc(5)

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

proc.5, proc_pid_io.5: Split /proc/PID/io from proc(5)

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

proc.5, proc_pid_uid_map.5, proc_pid_gid_map.5: Split /proc/PID/[ug]id_map from proc(5)

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

proc.5, proc_pid_fdinfo.5: Split /proc/PID/fdinfo/ from proc(5)

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

proc.5, proc_pid_fd.5: Split /proc/PID/fd/ from proc(5)

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

proc.5, proc_pid_exe.5: Split /proc/PID/exe from proc(5)

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

proc.5, proc_pid_environ.5: Split /proc/PID/environ from proc(5)

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

proc.5, proc_pid_cwd.5: Split /proc/PID/cwd from proc(5)

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

proc.5, proc_pid_cpuset.5: Split /proc/PID/cpuset from proc(5)

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

proc.5, proc_pid_coredump_filter.5: Split /proc/PID/coredump_filter from proc(5)

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