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b4406e1003
Eduard Zingerman says:
====================
follow up for __jited test tag
This patch-set is a collection of follow-ups for
"__jited test tag to check disassembly after jit" series (see [1]).
First patch is most important:
as it turns out, I broke all test_loader based tests for s390 CI.
E.g. see log [2] for s390 execution of test_progs,
note all 'verivier_*' tests being skipped.
This happens because of incorrect handling of corner case when
get_current_arch() does not know which architecture to return.
Second patch makes matching of function return sequence in
verifier_tailcall_jit more flexible:
-__jited(" retq")
+__jited(" {{(retq|jmp 0x)}}")
The difference could be seen with and w/o mitigations=off boot
parameter for test VM (CI runs with mitigations=off, hence it
generates retq).
Third patch addresses Alexei's request to add #define and a comment in
jit_disasm_helpers.c.
[1] https://lore.kernel.org/bpf/20240820102357.3372779-1-eddyz87@gmail.com/
[2] https://github.com/kernel-patches/bpf/actions/runs/10518445973/job/29144511595
====================
Link: https://lore.kernel.org/r/20240823080644.263943-1-eddyz87@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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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.