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Tests for no_caller_saved_registers processing logic (see verifier.c:match_and_mark_nocsr_pattern()): - a canary positive test case; - a canary test case for arm64 and riscv64; - various tests with broken patterns; - tests with read/write fixed/varying stack access that violate nocsr stack access contract; - tests with multiple subprograms; - tests using nocsr in combination with may_goto/bpf_loop, as all of these features affect stack depth; - tests for nocsr stack spills below max stack depth. Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/r/20240722233844.1406874-11-eddyz87@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@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 reStructuredText 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.