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Original commit message:
Fixing a possible freeze on abort with 'v8_win64_unwinding_info'
Win64 unwind data can specify a language-specific handler function which is
called as part of the search for an exception handler, as described in
https://docs.microsoft.com/en-us/cpp/build/exception-handling-x64?view=vs-2019.
This is used for example by Crashpad to register its own exception handler for
exceptions in V8-generated code.
There is a problem in the code that may cause a freeze on abort: in file
\deps\v8\src\unwinding-info-win64.cc in function CRASH_HANDLER_FUNCTION_NAME the
line:
return EXCEPTION_CONTINUE_SEARCH;
should be
return ExceptionContinueSearch;
These constants are both used in the context of Win32 exception handlers, but
they have different semantics and unfortunately different values:
EXCEPTION_CONTINUE_SEARCH (=0) should be returned by an exception filter
while a language-specific handler should return an EXCEPTION_DISPOSITION value,
and more precisely ExceptionContinueSearch (=1) in this case.
Bug: v8:9295
Change-Id: I1a3aaabf357e52a909611814f1ea013cf652ae06
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1629795
Reviewed-by: Jakob Kummerow <[email protected]>
Commit-Queue: Paolo Severini <[email protected]>
Cr-Commit-Position: refs/heads/master@{#61867}
Refs: v8/v8@3a75c1f
Backport-PR-URL: #28005
PR-URL: #27375
Reviewed-By: Michaël Zasso <[email protected]>
Reviewed-By: Ujjwal Sharma <[email protected]>
Reviewed-By: Refael Ackermann <[email protected]>
Reviewed-By: Matteo Collina <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Rich Trott <[email protected]>
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