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Original commit message:
[riscv] Fix sp handling in MacroAssembler::LeaveFrame
Keep sp <= fp to ensure that data right above fp doesn't get clobbered
by an inopportune signal and its handler.
Such clobbering can happen in e.g. Node.js when JIT-compiled code is
interrupted by a SIGCHLD handler.
Bug: None
Change-Id: Ief0836032ada7942e89f081f7605f61632c4d414
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/7540554
Reviewed-by: Ji Qiu <qiuji@iscas.ac.cn>
Commit-Queue: Yahan Lu (LuYahan) <yahan@iscas.ac.cn>
Reviewed-by: Rezvan Mahdavi Hezaveh <rezvan@chromium.org>
Cr-Commit-Position: refs/heads/main@{#105069}
Refs: v8/v8@6a0a25a
Co-authored-by: kxxt <rsworktech@outlook.com>
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richardlau
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I will open other PRs targeting node.js v20, v22 and v24 after testing. Could this PR be automatically cherry-picked into v25? It should land cleanly except for the |
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I am not sure why there are three checks in the CI that are stuck in "pending" state. |
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Original commit message:
Refs: v8/v8@6a0a25a
This V8 backport fixes a long-standing heisenbug that affects riscv64 since at least node.js 16.
CC @RevySR @dramforever @sxa