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Extend test_btf with various positive and negative tests around BTF verification of kind Var and DataSec. All passing as well: # ./test_btf [...] BTF raw test[4] (global data test #1): OK BTF raw test[5] (global data test #2): OK BTF raw test[6] (global data test #3): OK BTF raw test[7] (global data test #4, unsupported linkage): OK BTF raw test[8] (global data test #5, invalid var type): OK BTF raw test[9] (global data test #6, invalid var type (fwd type)): OK BTF raw test[10] (global data test #7, invalid var type (fwd type)): OK BTF raw test[11] (global data test #8, invalid var size): OK BTF raw test[12] (global data test #9, invalid var size): OK BTF raw test[13] (global data test #10, invalid var size): OK BTF raw test[14] (global data test #11, multiple section members): OK BTF raw test[15] (global data test #12, invalid offset): OK BTF raw test[16] (global data test #13, invalid offset): OK BTF raw test[17] (global data test #14, invalid offset): OK BTF raw test[18] (global data test #15, not var kind): OK BTF raw test[19] (global data test #16, invalid var referencing sec): OK BTF raw test[20] (global data test #17, invalid var referencing var): OK BTF raw test[21] (global data test #18, invalid var loop): OK BTF raw test[22] (global data test #19, invalid var referencing var): OK BTF raw test[23] (global data test #20, invalid ptr referencing var): OK BTF raw test[24] (global data test #21, var included in struct): OK BTF raw test[25] (global data test #22, array of var): OK [...] PASS:167 SKIP:0 FAIL:0 Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Martin KaFai Lau <kafai@fb.com> 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.