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Support reading naot crashinfo via module export #5528
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tommcdon
merged 16 commits into
dotnet:main
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tommcdon:dev/tommcdon/support_naot_crashinfo_export
Jul 30, 2025
Merged
Support reading naot crashinfo via module export #5528
tommcdon
merged 16 commits into
dotnet:main
from
tommcdon:dev/tommcdon/support_naot_crashinfo_export
Jul 30, 2025
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…dule handling and crash info service creation
MichalStrehovsky
previously approved these changes
Jul 29, 2025
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LGTM although I don't think I can provide better feedback than an LLM would do.
src/Microsoft.Diagnostics.DebugServices.Implementation/CrashInfoService.cs
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steveisok
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Jul 29, 2025
Co-authored-by: Michal Strehovský <[email protected]>
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steveisok
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SOS supports reading NAOT crash information using a JSON encoding mechanism. The mechanism relies on passing the serialized exception address via a FailFast exception parameter along with a special code. SOS can read this data via
!crashinfo
as well as!clrma
. As of dotnet/runtime#117832, NAOT can serialize exception data whenExceptionHandling.RaiseAppDomainUnhandledExceptionEvent
is called. This PR adds the corresponding SOS functionality to locate the g_CrashInfoBuffer global as an alternate mechanism in the event the exception does not contain the address of the buffer. Since this requires reading module exports, this change introduces a configurable module enumeration mechanism via the!crashinfo
command.