| commit | 4f1eda257721b7bc2f043c2eb031f2539534a1b4 | [log] [tgz] |
|---|---|---|
| author | Milad Fa <[email protected]> | Wed Apr 30 16:54:09 2025 |
| committer | V8 LUCI CQ <[email protected]> | Wed Apr 30 17:27:51 2025 |
| tree | 1410dc944d2084c2c5f2795d35a4e3b6d252d813 | |
| parent | 36c2af82fa7319da7bad0d4ad739d8c6645bbfd3 [diff] |
PPC/s390: [debug] Use kNoContext instead of kInvalidContext
Port 8342e1013c0813f4781dbd011f7ca57c0a0dbcef
Original Commit Message:
Debug code in the c-entry stub set the context field on the isolate to
kInvalidContext when returning to generated code. This debug code should
help with finding C++ code that accesses a stale context, i.e. C++ code
accesses the context, but the generated code calling the C++ code forgot
to set the current context.
The problem with the debug code was that it set the context field to a
value that was not a valid tagged value, and when the GC would see that
value, it would crash.
With this CL, kNoContext is used instead of kInvalidContext. Thereby C++
code that access the context will also fail, but if the GC sees the
value, it can handle it.
[email protected], [email protected], [email protected]
BUG=
LOG=N
Change-Id: I65f2efd8935ae26ad7c4110a3ffd09e5bc9c8954
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/6501023
Reviewed-by: Junliang Yan <[email protected]>
Commit-Queue: Milad Farazmand <[email protected]>
Cr-Commit-Position: refs/heads/main@{#100010}
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