Quentin Monnet 18841da981 tools: bpftool: Automate generation for "SEE ALSO" sections in man pages
The "SEE ALSO" sections of bpftool's manual pages refer to bpf(2),
bpf-helpers(7), then all existing bpftool man pages (save the current
one).

This leads to nearly-identical lists being duplicated in all manual
pages. Ideally, when a new page is created, all lists should be updated
accordingly, but this has led to omissions and inconsistencies multiple
times in the past.

Let's take it out of the RST files and generate the "SEE ALSO" sections
automatically in the Makefile when generating the man pages. The lists
are not really useful in the RST anyway because all other pages are
available in the same directory.

v3:
- Fix conflict with a previous patchset that introduced RST2MAN_OPTS
  variable passed to rst2man.

v2:
- Use "echo -n" instead of "printf" in Makefile, to avoid any risk of
  passing a format string directly to the command.

Signed-off-by: Quentin Monnet <quentin@isovalent.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200910203935.25304-1-quentin@isovalent.com
2020-09-10 20:10:45 -07:00

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ReStructuredText

================
BPFTOOL
================
-------------------------------------------------------------------------------
tool for inspection and simple manipulation of eBPF programs and maps
-------------------------------------------------------------------------------
:Manual section: 8
SYNOPSIS
========
**bpftool** [*OPTIONS*] *OBJECT* { *COMMAND* | **help** }
**bpftool** **batch file** *FILE*
**bpftool** **version**
*OBJECT* := { **map** | **program** | **cgroup** | **perf** | **net** | **feature** }
*OPTIONS* := { { **-V** | **--version** } | { **-h** | **--help** }
| { **-j** | **--json** } [{ **-p** | **--pretty** }] }
*MAP-COMMANDS* :=
{ **show** | **list** | **create** | **dump** | **update** | **lookup** | **getnext**
| **delete** | **pin** | **event_pipe** | **help** }
*PROG-COMMANDS* := { **show** | **list** | **dump jited** | **dump xlated** | **pin**
| **load** | **attach** | **detach** | **help** }
*CGROUP-COMMANDS* := { **show** | **list** | **attach** | **detach** | **help** }
*PERF-COMMANDS* := { **show** | **list** | **help** }
*NET-COMMANDS* := { **show** | **list** | **help** }
*FEATURE-COMMANDS* := { **probe** | **help** }
DESCRIPTION
===========
*bpftool* allows for inspection and simple modification of BPF objects
on the system.
Note that format of the output of all tools is not guaranteed to be
stable and should not be depended upon.
OPTIONS
=======
.. include:: common_options.rst
-m, --mapcompat
Allow loading maps with unknown map definitions.
-n, --nomount
Do not automatically attempt to mount any virtual file system
(such as tracefs or BPF virtual file system) when necessary.