[cDAC] Implement stack reference walking and GC stress verification#125505

Merged

max-charlamb merged 76 commits intodotnet:mainfrom

max-charlamb:cdac-stackreferences-2-with-stress

Apr 1, 2026

Commits on Mar 12, 2026

cdac: Stack walk GC scanning, exception handling, and IsFilterFunclet support

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cdac: Implement EnumerateLiveSlots in managed GCInfoDecoder

Max Charlamb
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cdac: Fix build errors in stack walk and execution manager

Max Charlamb
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Copilot
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cdac: Complete GcScanner.EnumGcRefs with live slot enumeration

Max Charlamb
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cdac: Implement GetStackReferences end-to-end

Max Charlamb
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cdac: Add dump tests for GetStackReferences

Max Charlamb
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cdac: Restore datadescriptor entries with proper native support

Max Charlamb
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update
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add tests
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update test script
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clean up
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add debug verification
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cdac: Add Frame GcScanRoots dispatch for non-frameless frames

Max Charlamb
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Copilot
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cdac: Fix stack slot register in GcScanner, add set-based debug validation

Max Charlamb
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cdac: Fix GCInfo slot table decoding bugs

Max Charlamb
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cdac: Fix ARM64 stack base register and ExecutionAborted exit path

Max Charlamb
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cdac: Match native skip behavior and add FindSafePoint TODO

Max Charlamb
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cdac: Implement scratch register/slot filtering in GCInfo decoder

Max Charlamb
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Implement context register fetching by number
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cdac: Address PR review comments

Max Charlamb
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GCReportCallback missing object dereference
Max Charlamb
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Fix cDAC stack walking bugs found via GC stress verification

Max Charlamb
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Fix Frame skip to use caller SP instead of initial SP

Max Charlamb
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Guard new Data fields with ContainsKey for backward compatibility

Max Charlamb
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Address PR review comments: cleanup and safety fixes

Max Charlamb
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Address remaining PR review comments

Max Charlamb
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Restore GetMethodDescPtr docs and fix patchpointinfo friend

Max Charlamb
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Remove unused m_lastReportedFunclet from ExInfo

Max Charlamb
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remove guards that were not required
Max Charlamb
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remove stale comment
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Commits on Mar 13, 2026

Fix GCReportCallback to throw on read failure and document funclet gaps

Max Charlamb
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Copilot
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Add cDAC GC stress verification tool (GCSTRESS_CDAC=0x20)

Max Charlamb
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Copilot
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Triple-match cDAC vs DAC vs runtime GC ref comparison

Max Charlamb
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Remove DAC from stress tool, add cDAC ref filtering

Max Charlamb
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Commits on Mar 16, 2026

Add known issues doc and filter dynamic methods in GC stress

Max Charlamb
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Move gcstress docs to cDAC tests directory and add README section

Max Charlamb
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Fix review issues: thread safety, buffer overflow, revert stale changes

Max Charlamb
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nit cleanup
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Merge remote-tracking branch 'origin/main' into cdac-stackreferences-2-with-stress
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Commits on Mar 17, 2026

updates
Max Charlamb
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include cdacdata.h
Max Charlamb
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update to use the existing exception clause info
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comments
Max Charlamb
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Commits on Mar 18, 2026

comments
Max Charlamb
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Merge remote-tracking branch 'origin/main' into cdac-stackreferences-2-with-stress
Max Charlamb
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Fix infinite loop in repo root discovery on Windows filesystem root

Max Charlamb
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Copilot
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Remove RegisterNumber from RegisterAttribute and context structs

Max Charlamb
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Fix mock descriptors for new ExceptionInfo, RealCodeHeader, and ReadyToRunInfo fields

Max Charlamb
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Commits on Mar 19, 2026

Fix cross-platform build errors: cdac_data<ExInfo> and _wfopen

Max Charlamb
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Fix stack slot register encoding to match native GetStackReg

Max Charlamb
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Copilot
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Improve GC stress comparison to validate Address and log Register/Offset

Max Charlamb
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Fail initialization if ISOSDacInterface QI fails

Max Charlamb
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Make IGCInfoDecoder.EnumerateLiveSlots abstract instead of default-throwing

Max Charlamb
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Only set ContinueOnAssert when not in FailFast mode

Max Charlamb
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Merge remote-tracking branch 'origin/main' into pr-125505
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Commits on Mar 24, 2026

Move skipBelowSP into CreateStackWalkCore helper

Max Charlamb
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Simplify StackWalk_1.cs flags and logic
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Fix GC stress register ref comparison with two-phase matching

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Commits on Mar 25, 2026

Add extra Release for leaked enumerator ref-count in GC stress

Max Charlamb
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comments
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Commits on Mar 27, 2026

updates from later branch
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Restructure gcstress tests with separate debuggee projects

Max Charlamb
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Rename gcstress to StressTests, trim to 2 debuggees, add README

Max Charlamb
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Address Copilot review comments

Max Charlamb
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Address review comments: cdacstress fixes and StackWalk comment

Max Charlamb
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Commits on Mar 30, 2026

Fix cross-platform build errors

Max Charlamb
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Fix GetModuleHandleW unavailable on Linux

Max Charlamb
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Remove dead movedPastFirstExInfo tracking in Filter()

Max Charlamb
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Make DebuggerFilterContext/ProfilerFilterContext optional in Thread data

Max Charlamb
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Revert "Make DebuggerFilterContext/ProfilerFilterContext optional in Thread data"
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Merge remote-tracking branch 'origin/main' into cdac-stackreferences-2-with-stress
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Fix x86 qsort calling convention and merge main

Max Charlamb
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Commits on Mar 31, 2026

Fall through to legacy DAC for GetStackReferences

Max Charlamb
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Skip StackRefs dump tests pending ScanFrameRoots implementation

Max Charlamb
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Address CI and review feedback

Max Charlamb
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skip tests on x86 until it supports gcdecoding
Max Charlamb
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