c6ebae4ccc
Quentin Monnet says:
====================
This set contains some improvements for bpftool's "visual" program dump
option, which produces the control flow graph in a DOT format. The main
objective is to add support for inline annotations on such graphs, so that
we can have the C source code for the program showing up alongside the
instructions, when available. The last commits also make it possible to
display the line numbers or the bare opcodes in the graph, as supported by
regular program dumps.
v3:
- Fixed formatting of DOT graph: escape spaces, and remove indent that
would cause some unwanted spaces to show up in the resulting graph.
- Don't print line information if the record is empty.
- Add '<' and ' ' to the list of escaped characters for generting the
DOT graph.
- Truncate long file paths, use shorter field names ("line", "col") for
code location information in the graph, add missing separator space.
- Add a commit to return an error if JSON output and CFG are both
required.
- Add a drive-by, clean up commit for bash completion (avoid unnecessary
calls to _bpftool_once_attr()).
v2: Replace fputc(..., stdout) with putchar(...) in dotlabel_puts().
====================
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.