a8fdaad5cf
Add exra level of verboseness, activated by -vvv argument. When -vv is specified, verbose libbpf and verifier log (level 1) is output, even for successful tests. With -vvv, verifier log goes to level 2. This is extremely useful to debug verifier failures, as well as just see the state and flow of verification. Before this, you'd have to go and modify load_program()'s source code inside libbpf to specify extra log_level flags, which is suboptimal to say the least. Currently -vv and -vvv triggering verifier output is integrated into test_stub's bpf_prog_load as well as bpf_verif_scale.c tests. Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20191120003548.4159797-1-andriin@fb.com
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.