From: Eduard Zingerman <eddyz87@gmail.com>
To: bpf@vger.kernel.org, ast@kernel.org
Cc: andrii@kernel.org, daniel@iogearbox.net, martin.lau@linux.dev,
kernel-team@fb.com, yhs@fb.com,
Eduard Zingerman <eddyz87@gmail.com>
Subject: [PATCH bpf-next v2 0/1] docs/bpf: Add description of register liveness tracking algorithm
Date: Mon, 30 Jan 2023 20:23:59 +0200 [thread overview]
Message-ID: <20230130182400.630997-1-eddyz87@gmail.com> (raw)
An overview of the register tracking liveness algorithm.
Previous version posted here: [1].
This update includes fixes suggested by Andrii Nakryiko:
- wording corrected to use term "stack slot" instead of "stack spill";
- parentage chain diagram updated to show nil links for frame #1;
- added example for non-BPF_DW writes behavior;
- explanation in "Read marks propagation for cache hits" is reworked.
[1] https://lore.kernel.org/bpf/20230124220343.2942203-1-eddyz87@gmail.com/
Eduard Zingerman (1):
docs/bpf: Add description of register liveness tracking algorithm
Documentation/bpf/verifier.rst | 266 +++++++++++++++++++++++++++++++++
1 file changed, 266 insertions(+)
--
2.39.0
next reply other threads:[~2023-01-30 18:27 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-30 18:23 Eduard Zingerman [this message]
2023-01-30 18:24 ` [PATCH bpf-next v2 1/1] docs/bpf: Add description of register liveness tracking algorithm Eduard Zingerman
2023-01-30 19:59 ` David Vernet
2023-01-30 23:45 ` Eduard Zingerman
2023-01-31 2:33 ` Alexei Starovoitov
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