[cDAC] implement EnumerateInternalFrames and GetCountOfInternalFrames - #128241

Merged
rcj1 merged 13 commits into
mainfrom
copilot/add-dacdbi-getframes-api
May 19, 2026
Merged

[cDAC] implement EnumerateInternalFrames and GetCountOfInternalFrames#128241
rcj1 merged 13 commits into
mainfrom
copilot/add-dacdbi-getframes-api

Conversation

CopilotAI commented May 15, 2026

Copy link
Copy Markdown
Contributor

New StackWalk cDAC APIs:

IEnumerable<StackFrameData>GetFrames(TargetPointerthreadPointer)=>thrownewNotImplementedException();boolIsExceptionHandlingHelperInlinedCallFrame(TargetPointerframeAddress)=>thrownewNotImplementedException();DebuggerEvalDataGetDebuggerEvalData(TargetPointerfuncEvalFrameAddress)=>thrownewNotImplementedException();

… in cDAC via new Thread_1.GetFrames
Co-authored-by: rcj1 <77995559+rcj1@users.noreply.github.com>
CopilotAI requested review from Copilot and removed request for CopilotMay 15, 2026 02:21
@rcj1rcj1 added the NO-MERGE The PR is not ready for merge yet (see discussion for detailed reasons) label May 15, 2026
@rcj1rcj1 added the NO-REVIEW Experimental/testing PR, do NOT review it label May 15, 2026
@dotnet-policy-service

Copy link
Copy Markdown
Contributor

Tagging subscribers to this area: @steveisok, @tommcdon, @dotnet/dotnet-diag
See info in area-owners.md if you want to be subscribed.

CopilotAI review requested due to automatic review settings May 15, 2026 04:32

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Pull request overview

The PR's title and description say it deletes a single unused field (nativeCodeJITInfoToken) from DebuggerIPCE_JITFuncData, but the actual diff is a much larger reshape: the legacy DebuggerIPCE_* IPC structs (FuncData, JITFuncData, STRData) are renamed to Debugger_* and moved/restructured, the DAC Debugger_STRData now stores ctx/rd as CORDB_ADDRESS pointers into dbi-allocated buffers, Frame::GetStubFrameType() is added so GetInternalFrameType can replace its old transition/interception heuristics, and the cDAC gains real implementations of GetCountOfInternalFrames/EnumerateInternalFrames plus a new IStackWalk.GetFrames/IsExceptionHandlingHelperInlinedCallFrame/GetDebuggerEvalData surface (with tests and contract docs). The PR description significantly understates the scope of changes.

Changes:

  • Rename and restructure the dbi/DAC stack frame IPC structs and switch Debugger_STRData::ctx/rd to caller-allocated buffers referenced by CORDB_ADDRESS.
  • Add Frame::GetStubFrameType() polymorphic dispatch and rewrite DacDbiInterfaceImpl::GetInternalFrameType on top of it.
  • Add cDAC IStackWalk.GetFrames/IsExceptionHandlingHelperInlinedCallFrame/GetDebuggerEvalData and use them to implement GetCountOfInternalFrames/EnumerateInternalFrames, with new mock infrastructure and tests.
Show a summary per file
FileDescription
src/coreclr/debug/inc/dbgipcevents.hRemoves legacy DebuggerIPCE_FuncData/JITFuncData/STRData definitions (now defined in dacdbistructures.h).
src/coreclr/debug/inc/dacdbistructures.hAdds renamed Debugger_FuncData/Debugger_JITFuncData/Debugger_STRData with ctx/rd as CORDB_ADDRESS.
src/coreclr/debug/inc/dacdbistructures.inlUpdates NativeCodeFunctionData ctor to take Debugger_JITFuncData*.
src/coreclr/debug/inc/dacdbiinterface.hRenames the IPC struct in interface signatures and comments.
src/coreclr/inc/dacdbi.idlRenames DebuggerIPCE_STRData to Debugger_STRData in IDL.
src/coreclr/debug/daccess/dacdbiimpl.hUpdates dacdbi impl signatures to renamed types.
src/coreclr/debug/daccess/dacdbiimplstackwalk.cppUpdates rename, switches to caller-allocated ctx/rd, rewrites GetInternalFrameType via GetStubFrameType(); leaves a duplicate pJITFuncData->enCVersion assignment.
src/coreclr/vm/frames.h / frames.cppAdds Frame::StubFrameType enum, virtual GetStubFrameType_Impl per subclass, and dispatch.
src/coreclr/vm/datadescriptor/datadescriptor.incExposes DebuggerEval::m_methodToken/m_pAssembly to the cDAC data descriptor.
src/coreclr/debug/ee/debugger.h / debugger.cppAdds m_pAssembly to DebuggerEval and initializes it.
src/coreclr/debug/di/rsthread.cpp / rsstackwalk.cpp / rspriv.hUpdates dbi-side rename and allocates DT_CONTEXT/DebuggerREGDISPLAY for the new Debugger_STRData protocol.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Abstractions/Contracts/IStackWalk.csAdds InternalFrameType, StackFrameData, DebuggerEvalData, and three new IStackWalk methods.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Contracts/StackWalk/StackWalk_1.csImplements GetFrames, IsExceptionHandlingHelperInlinedCallFrame, GetDebuggerEvalData.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Contracts/StackWalk/FrameHandling/FrameIterator.csAdds GetInternalFrameType/IsExceptionHandlingHelperInlinedCallFrame; the latter omits the FrameHasActiveCall check.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Contracts/Thread_1.csAdds using System.Collections.Generic; (looks unused locally — only the using is shown changed).
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Data/Frames/DebuggerEval.csReads new MethodToken/AssemblyPtr fields.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Legacy/Dbi/IDacDbiInterface.csDefines managed mirrors of the new Debugger_* structs and the EnumerateInternalFrames callback signature.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Legacy/Dbi/DacDbiImpl.csProvides cDAC implementations of GetCountOfInternalFrames/EnumerateInternalFrames with DEBUG-only DAC cross-validation.
src/native/managed/cdac/tests/MockDescriptors/MockDescriptors.Frame.csNew mock Frame layouts and MockFrameBuilder helper.
src/native/managed/cdac/tests/MockDescriptors/MockDescriptors.Thread.csAdds a public Frame accessor on MockThread.
src/native/managed/cdac/tests/StackWalkTests.csNew tests for GetFrames, EH-helper ICF detection, and GetDebuggerEvalData.
docs/design/datacontracts/StackWalk.mdDocuments the new APIs and EH-helper marker constant.

Copilot's findings

  • Files reviewed: 26/26 changed files
  • Comments generated: 2

Comment threadsrc/coreclr/debug/daccess/dacdbiimplstackwalk.cpp Outdated
CopilotAI review requested due to automatic review settings May 15, 2026 04:39

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 25/25 changed files
  • Comments generated: 5

Comment threadsrc/coreclr/debug/inc/dbgipcevents.h
Comment threadsrc/coreclr/debug/daccess/dacdbiimplstackwalk.cpp Outdated
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
CopilotAI review requested due to automatic review settings May 15, 2026 04:56

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 25/25 changed files
  • Comments generated: 3

Comment threadsrc/coreclr/debug/inc/dacdbistructures.h
Comment threadsrc/coreclr/debug/inc/dacdbistructures.inl Outdated
Comment threadsrc/coreclr/debug/inc/dbgipcevents.h
@rcj1rcj1 changed the title Delete unused nativeCodeJITInfoToken from DebuggerIPCE_JITFuncData[cDAC] implement EnumerateInternalFrames and GetCountOfInternalFramesMay 15, 2026
@rcj1rcj1 removed NO-MERGE The PR is not ready for merge yet (see discussion for detailed reasons) NO-REVIEW Experimental/testing PR, do NOT review it labels May 15, 2026
@rcj1
rcj1 marked this pull request as ready for review May 15, 2026 05:10
@rcj1
rcj1 requested review from max-charlamb and noahfalkMay 15, 2026 05:10

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 26/26 changed files
  • Comments generated: 1

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
CopilotAI review requested due to automatic review settings May 16, 2026 03:59

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 26/26 changed files
  • Comments generated: 0 new

@rcj1rcj1 changed the title [cDAC] implement EnumerateInternalFrames and GetCountOfInternalFrames[cDAC] [WIP] implement EnumerateInternalFrames and GetCountOfInternalFramesMay 18, 2026
@rcj1
rcj1 marked this pull request as draft May 18, 2026 18:24

@noahfalknoahfalk left a comment

Copy link
Copy Markdown
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Looked good to me modulo a few comments inline

Comment threadsrc/coreclr/debug/inc/dacdbistructures.h Outdated
Comment threadsrc/coreclr/vm/frames.h
Comment threadsrc/native/managed/cdac/tests/MockDescriptors/MockDescriptors.Frame.cs Outdated
@rcj1rcj1 changed the title [cDAC] [WIP] implement EnumerateInternalFrames and GetCountOfInternalFrames[cDAC] implement EnumerateInternalFrames and GetCountOfInternalFramesMay 18, 2026
@rcj1
rcj1 marked this pull request as ready for review May 18, 2026 23:03
CopilotAI review requested due to automatic review settings May 18, 2026 23:03

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 27/27 changed files
  • Comments generated: 0 new

CopilotAI review requested due to automatic review settings May 19, 2026 04:48

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 27/27 changed files
  • Comments generated: 0 new

@rcj1

rcj1 commented May 19, 2026

Copy link
Copy Markdown
Contributor

/ba-g #128372

@rcj1
rcj1 merged commit fb7020f into mainMay 19, 2026
121 of 126 checks passed
@rcj1
rcj1 deleted the copilot/add-dacdbi-getframes-api branch May 19, 2026 14:00
@dotnet-milestone-botdotnet-milestone-botBot added this to the 11.0-preview6 milestone May 21, 2026
@github-actionsgithub-actionsBot locked and limited conversation to collaborators Jun 21, 2026
Sign up for freeto subscribe to this conversation on GitHub. Already have an account? Sign in.

Projects

None yet

Development

Successfully merging this pull request may close these issues.

4 participants

@rcj1@noahfalk
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
Skip to content

[cDAC] implement EnumerateInternalFrames and GetCountOfInternalFrames - #128241

Merged
rcj1 merged 13 commits into
mainfrom
copilot/add-dacdbi-getframes-api
May 19, 2026
Merged

[cDAC] implement EnumerateInternalFrames and GetCountOfInternalFrames#128241
rcj1 merged 13 commits into
mainfrom
copilot/add-dacdbi-getframes-api

Conversation

CopilotAI commented May 15, 2026

Copy link
Copy Markdown
Contributor

New StackWalk cDAC APIs:

IEnumerable<StackFrameData>GetFrames(TargetPointerthreadPointer)=>thrownewNotImplementedException();boolIsExceptionHandlingHelperInlinedCallFrame(TargetPointerframeAddress)=>thrownewNotImplementedException();DebuggerEvalDataGetDebuggerEvalData(TargetPointerfuncEvalFrameAddress)=>thrownewNotImplementedException();

… in cDAC via new Thread_1.GetFrames
Co-authored-by: rcj1 <77995559+rcj1@users.noreply.github.com>
CopilotAI requested review from Copilot and removed request for CopilotMay 15, 2026 02:21
@rcj1rcj1 added the NO-MERGE The PR is not ready for merge yet (see discussion for detailed reasons) label May 15, 2026
@rcj1rcj1 added the NO-REVIEW Experimental/testing PR, do NOT review it label May 15, 2026
@dotnet-policy-service

Copy link
Copy Markdown
Contributor

Tagging subscribers to this area: @steveisok, @tommcdon, @dotnet/dotnet-diag
See info in area-owners.md if you want to be subscribed.

CopilotAI review requested due to automatic review settings May 15, 2026 04:32

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Pull request overview

The PR's title and description say it deletes a single unused field (nativeCodeJITInfoToken) from DebuggerIPCE_JITFuncData, but the actual diff is a much larger reshape: the legacy DebuggerIPCE_* IPC structs (FuncData, JITFuncData, STRData) are renamed to Debugger_* and moved/restructured, the DAC Debugger_STRData now stores ctx/rd as CORDB_ADDRESS pointers into dbi-allocated buffers, Frame::GetStubFrameType() is added so GetInternalFrameType can replace its old transition/interception heuristics, and the cDAC gains real implementations of GetCountOfInternalFrames/EnumerateInternalFrames plus a new IStackWalk.GetFrames/IsExceptionHandlingHelperInlinedCallFrame/GetDebuggerEvalData surface (with tests and contract docs). The PR description significantly understates the scope of changes.

Changes:

  • Rename and restructure the dbi/DAC stack frame IPC structs and switch Debugger_STRData::ctx/rd to caller-allocated buffers referenced by CORDB_ADDRESS.
  • Add Frame::GetStubFrameType() polymorphic dispatch and rewrite DacDbiInterfaceImpl::GetInternalFrameType on top of it.
  • Add cDAC IStackWalk.GetFrames/IsExceptionHandlingHelperInlinedCallFrame/GetDebuggerEvalData and use them to implement GetCountOfInternalFrames/EnumerateInternalFrames, with new mock infrastructure and tests.
Show a summary per file
FileDescription
src/coreclr/debug/inc/dbgipcevents.hRemoves legacy DebuggerIPCE_FuncData/JITFuncData/STRData definitions (now defined in dacdbistructures.h).
src/coreclr/debug/inc/dacdbistructures.hAdds renamed Debugger_FuncData/Debugger_JITFuncData/Debugger_STRData with ctx/rd as CORDB_ADDRESS.
src/coreclr/debug/inc/dacdbistructures.inlUpdates NativeCodeFunctionData ctor to take Debugger_JITFuncData*.
src/coreclr/debug/inc/dacdbiinterface.hRenames the IPC struct in interface signatures and comments.
src/coreclr/inc/dacdbi.idlRenames DebuggerIPCE_STRData to Debugger_STRData in IDL.
src/coreclr/debug/daccess/dacdbiimpl.hUpdates dacdbi impl signatures to renamed types.
src/coreclr/debug/daccess/dacdbiimplstackwalk.cppUpdates rename, switches to caller-allocated ctx/rd, rewrites GetInternalFrameType via GetStubFrameType(); leaves a duplicate pJITFuncData->enCVersion assignment.
src/coreclr/vm/frames.h / frames.cppAdds Frame::StubFrameType enum, virtual GetStubFrameType_Impl per subclass, and dispatch.
src/coreclr/vm/datadescriptor/datadescriptor.incExposes DebuggerEval::m_methodToken/m_pAssembly to the cDAC data descriptor.
src/coreclr/debug/ee/debugger.h / debugger.cppAdds m_pAssembly to DebuggerEval and initializes it.
src/coreclr/debug/di/rsthread.cpp / rsstackwalk.cpp / rspriv.hUpdates dbi-side rename and allocates DT_CONTEXT/DebuggerREGDISPLAY for the new Debugger_STRData protocol.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Abstractions/Contracts/IStackWalk.csAdds InternalFrameType, StackFrameData, DebuggerEvalData, and three new IStackWalk methods.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Contracts/StackWalk/StackWalk_1.csImplements GetFrames, IsExceptionHandlingHelperInlinedCallFrame, GetDebuggerEvalData.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Contracts/StackWalk/FrameHandling/FrameIterator.csAdds GetInternalFrameType/IsExceptionHandlingHelperInlinedCallFrame; the latter omits the FrameHasActiveCall check.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Contracts/Thread_1.csAdds using System.Collections.Generic; (looks unused locally — only the using is shown changed).
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Data/Frames/DebuggerEval.csReads new MethodToken/AssemblyPtr fields.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Legacy/Dbi/IDacDbiInterface.csDefines managed mirrors of the new Debugger_* structs and the EnumerateInternalFrames callback signature.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Legacy/Dbi/DacDbiImpl.csProvides cDAC implementations of GetCountOfInternalFrames/EnumerateInternalFrames with DEBUG-only DAC cross-validation.
src/native/managed/cdac/tests/MockDescriptors/MockDescriptors.Frame.csNew mock Frame layouts and MockFrameBuilder helper.
src/native/managed/cdac/tests/MockDescriptors/MockDescriptors.Thread.csAdds a public Frame accessor on MockThread.
src/native/managed/cdac/tests/StackWalkTests.csNew tests for GetFrames, EH-helper ICF detection, and GetDebuggerEvalData.
docs/design/datacontracts/StackWalk.mdDocuments the new APIs and EH-helper marker constant.

Copilot's findings

  • Files reviewed: 26/26 changed files
  • Comments generated: 2

Comment threadsrc/coreclr/debug/daccess/dacdbiimplstackwalk.cpp Outdated
CopilotAI review requested due to automatic review settings May 15, 2026 04:39

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 25/25 changed files
  • Comments generated: 5

Comment threadsrc/coreclr/debug/inc/dbgipcevents.h
Comment threadsrc/coreclr/debug/daccess/dacdbiimplstackwalk.cpp Outdated
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
CopilotAI review requested due to automatic review settings May 15, 2026 04:56

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 25/25 changed files
  • Comments generated: 3

Comment threadsrc/coreclr/debug/inc/dacdbistructures.h
Comment threadsrc/coreclr/debug/inc/dacdbistructures.inl Outdated
Comment threadsrc/coreclr/debug/inc/dbgipcevents.h
@rcj1rcj1 changed the title Delete unused nativeCodeJITInfoToken from DebuggerIPCE_JITFuncData[cDAC] implement EnumerateInternalFrames and GetCountOfInternalFramesMay 15, 2026
@rcj1rcj1 removed NO-MERGE The PR is not ready for merge yet (see discussion for detailed reasons) NO-REVIEW Experimental/testing PR, do NOT review it labels May 15, 2026
@rcj1
rcj1 marked this pull request as ready for review May 15, 2026 05:10
@rcj1
rcj1 requested review from max-charlamb and noahfalkMay 15, 2026 05:10

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 26/26 changed files
  • Comments generated: 1

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
CopilotAI review requested due to automatic review settings May 16, 2026 03:59

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 26/26 changed files
  • Comments generated: 0 new

@rcj1rcj1 changed the title [cDAC] implement EnumerateInternalFrames and GetCountOfInternalFrames[cDAC] [WIP] implement EnumerateInternalFrames and GetCountOfInternalFramesMay 18, 2026
@rcj1
rcj1 marked this pull request as draft May 18, 2026 18:24

@noahfalknoahfalk left a comment

Copy link
Copy Markdown
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Looked good to me modulo a few comments inline

Comment threadsrc/coreclr/debug/inc/dacdbistructures.h Outdated
Comment threadsrc/coreclr/vm/frames.h
Comment threadsrc/native/managed/cdac/tests/MockDescriptors/MockDescriptors.Frame.cs Outdated
@rcj1rcj1 changed the title [cDAC] [WIP] implement EnumerateInternalFrames and GetCountOfInternalFrames[cDAC] implement EnumerateInternalFrames and GetCountOfInternalFramesMay 18, 2026
@rcj1
rcj1 marked this pull request as ready for review May 18, 2026 23:03
CopilotAI review requested due to automatic review settings May 18, 2026 23:03

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 27/27 changed files
  • Comments generated: 0 new

CopilotAI review requested due to automatic review settings May 19, 2026 04:48

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 27/27 changed files
  • Comments generated: 0 new

@rcj1

rcj1 commented May 19, 2026

Copy link
Copy Markdown
Contributor

/ba-g #128372

@rcj1
rcj1 merged commit fb7020f into mainMay 19, 2026
121 of 126 checks passed
@rcj1
rcj1 deleted the copilot/add-dacdbi-getframes-api branch May 19, 2026 14:00
@dotnet-milestone-botdotnet-milestone-botBot added this to the 11.0-preview6 milestone May 21, 2026
@github-actionsgithub-actionsBot locked and limited conversation to collaborators Jun 21, 2026
Sign up for freeto subscribe to this conversation on GitHub. Already have an account? Sign in.

Projects

None yet

Development

Successfully merging this pull request may close these issues.

4 participants

@rcj1@noahfalk
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix"); } } catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content

[cDAC] implement EnumerateInternalFrames and GetCountOfInternalFrames - #128241

Merged
rcj1 merged 13 commits into
mainfrom
copilot/add-dacdbi-getframes-api
May 19, 2026
Merged

[cDAC] implement EnumerateInternalFrames and GetCountOfInternalFrames#128241
rcj1 merged 13 commits into
mainfrom
copilot/add-dacdbi-getframes-api

Conversation

CopilotAI commented May 15, 2026

Copy link
Copy Markdown
Contributor

New StackWalk cDAC APIs:

IEnumerable<StackFrameData>GetFrames(TargetPointerthreadPointer)=>thrownewNotImplementedException();boolIsExceptionHandlingHelperInlinedCallFrame(TargetPointerframeAddress)=>thrownewNotImplementedException();DebuggerEvalDataGetDebuggerEvalData(TargetPointerfuncEvalFrameAddress)=>thrownewNotImplementedException();

… in cDAC via new Thread_1.GetFrames
Co-authored-by: rcj1 <77995559+rcj1@users.noreply.github.com>
CopilotAI requested review from Copilot and removed request for CopilotMay 15, 2026 02:21
@rcj1rcj1 added the NO-MERGE The PR is not ready for merge yet (see discussion for detailed reasons) label May 15, 2026
@rcj1rcj1 added the NO-REVIEW Experimental/testing PR, do NOT review it label May 15, 2026
@dotnet-policy-service

Copy link
Copy Markdown
Contributor

Tagging subscribers to this area: @steveisok, @tommcdon, @dotnet/dotnet-diag
See info in area-owners.md if you want to be subscribed.

CopilotAI review requested due to automatic review settings May 15, 2026 04:32

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Pull request overview

The PR's title and description say it deletes a single unused field (nativeCodeJITInfoToken) from DebuggerIPCE_JITFuncData, but the actual diff is a much larger reshape: the legacy DebuggerIPCE_* IPC structs (FuncData, JITFuncData, STRData) are renamed to Debugger_* and moved/restructured, the DAC Debugger_STRData now stores ctx/rd as CORDB_ADDRESS pointers into dbi-allocated buffers, Frame::GetStubFrameType() is added so GetInternalFrameType can replace its old transition/interception heuristics, and the cDAC gains real implementations of GetCountOfInternalFrames/EnumerateInternalFrames plus a new IStackWalk.GetFrames/IsExceptionHandlingHelperInlinedCallFrame/GetDebuggerEvalData surface (with tests and contract docs). The PR description significantly understates the scope of changes.

Changes:

  • Rename and restructure the dbi/DAC stack frame IPC structs and switch Debugger_STRData::ctx/rd to caller-allocated buffers referenced by CORDB_ADDRESS.
  • Add Frame::GetStubFrameType() polymorphic dispatch and rewrite DacDbiInterfaceImpl::GetInternalFrameType on top of it.
  • Add cDAC IStackWalk.GetFrames/IsExceptionHandlingHelperInlinedCallFrame/GetDebuggerEvalData and use them to implement GetCountOfInternalFrames/EnumerateInternalFrames, with new mock infrastructure and tests.
Show a summary per file
FileDescription
src/coreclr/debug/inc/dbgipcevents.hRemoves legacy DebuggerIPCE_FuncData/JITFuncData/STRData definitions (now defined in dacdbistructures.h).
src/coreclr/debug/inc/dacdbistructures.hAdds renamed Debugger_FuncData/Debugger_JITFuncData/Debugger_STRData with ctx/rd as CORDB_ADDRESS.
src/coreclr/debug/inc/dacdbistructures.inlUpdates NativeCodeFunctionData ctor to take Debugger_JITFuncData*.
src/coreclr/debug/inc/dacdbiinterface.hRenames the IPC struct in interface signatures and comments.
src/coreclr/inc/dacdbi.idlRenames DebuggerIPCE_STRData to Debugger_STRData in IDL.
src/coreclr/debug/daccess/dacdbiimpl.hUpdates dacdbi impl signatures to renamed types.
src/coreclr/debug/daccess/dacdbiimplstackwalk.cppUpdates rename, switches to caller-allocated ctx/rd, rewrites GetInternalFrameType via GetStubFrameType(); leaves a duplicate pJITFuncData->enCVersion assignment.
src/coreclr/vm/frames.h / frames.cppAdds Frame::StubFrameType enum, virtual GetStubFrameType_Impl per subclass, and dispatch.
src/coreclr/vm/datadescriptor/datadescriptor.incExposes DebuggerEval::m_methodToken/m_pAssembly to the cDAC data descriptor.
src/coreclr/debug/ee/debugger.h / debugger.cppAdds m_pAssembly to DebuggerEval and initializes it.
src/coreclr/debug/di/rsthread.cpp / rsstackwalk.cpp / rspriv.hUpdates dbi-side rename and allocates DT_CONTEXT/DebuggerREGDISPLAY for the new Debugger_STRData protocol.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Abstractions/Contracts/IStackWalk.csAdds InternalFrameType, StackFrameData, DebuggerEvalData, and three new IStackWalk methods.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Contracts/StackWalk/StackWalk_1.csImplements GetFrames, IsExceptionHandlingHelperInlinedCallFrame, GetDebuggerEvalData.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Contracts/StackWalk/FrameHandling/FrameIterator.csAdds GetInternalFrameType/IsExceptionHandlingHelperInlinedCallFrame; the latter omits the FrameHasActiveCall check.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Contracts/Thread_1.csAdds using System.Collections.Generic; (looks unused locally — only the using is shown changed).
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Data/Frames/DebuggerEval.csReads new MethodToken/AssemblyPtr fields.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Legacy/Dbi/IDacDbiInterface.csDefines managed mirrors of the new Debugger_* structs and the EnumerateInternalFrames callback signature.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Legacy/Dbi/DacDbiImpl.csProvides cDAC implementations of GetCountOfInternalFrames/EnumerateInternalFrames with DEBUG-only DAC cross-validation.
src/native/managed/cdac/tests/MockDescriptors/MockDescriptors.Frame.csNew mock Frame layouts and MockFrameBuilder helper.
src/native/managed/cdac/tests/MockDescriptors/MockDescriptors.Thread.csAdds a public Frame accessor on MockThread.
src/native/managed/cdac/tests/StackWalkTests.csNew tests for GetFrames, EH-helper ICF detection, and GetDebuggerEvalData.
docs/design/datacontracts/StackWalk.mdDocuments the new APIs and EH-helper marker constant.

Copilot's findings

  • Files reviewed: 26/26 changed files
  • Comments generated: 2

Comment threadsrc/coreclr/debug/daccess/dacdbiimplstackwalk.cpp Outdated
CopilotAI review requested due to automatic review settings May 15, 2026 04:39

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 25/25 changed files
  • Comments generated: 5

Comment threadsrc/coreclr/debug/inc/dbgipcevents.h
Comment threadsrc/coreclr/debug/daccess/dacdbiimplstackwalk.cpp Outdated
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
CopilotAI review requested due to automatic review settings May 15, 2026 04:56

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 25/25 changed files
  • Comments generated: 3

Comment threadsrc/coreclr/debug/inc/dacdbistructures.h
Comment threadsrc/coreclr/debug/inc/dacdbistructures.inl Outdated
Comment threadsrc/coreclr/debug/inc/dbgipcevents.h
@rcj1rcj1 changed the title Delete unused nativeCodeJITInfoToken from DebuggerIPCE_JITFuncData[cDAC] implement EnumerateInternalFrames and GetCountOfInternalFramesMay 15, 2026
@rcj1rcj1 removed NO-MERGE The PR is not ready for merge yet (see discussion for detailed reasons) NO-REVIEW Experimental/testing PR, do NOT review it labels May 15, 2026
@rcj1
rcj1 marked this pull request as ready for review May 15, 2026 05:10
@rcj1
rcj1 requested review from max-charlamb and noahfalkMay 15, 2026 05:10

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 26/26 changed files
  • Comments generated: 1

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
CopilotAI review requested due to automatic review settings May 16, 2026 03:59

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 26/26 changed files
  • Comments generated: 0 new

@rcj1rcj1 changed the title [cDAC] implement EnumerateInternalFrames and GetCountOfInternalFrames[cDAC] [WIP] implement EnumerateInternalFrames and GetCountOfInternalFramesMay 18, 2026
@rcj1
rcj1 marked this pull request as draft May 18, 2026 18:24

@noahfalknoahfalk left a comment

Copy link
Copy Markdown
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Looked good to me modulo a few comments inline

Comment threadsrc/coreclr/debug/inc/dacdbistructures.h Outdated
Comment threadsrc/coreclr/vm/frames.h
Comment threadsrc/native/managed/cdac/tests/MockDescriptors/MockDescriptors.Frame.cs Outdated
@rcj1rcj1 changed the title [cDAC] [WIP] implement EnumerateInternalFrames and GetCountOfInternalFrames[cDAC] implement EnumerateInternalFrames and GetCountOfInternalFramesMay 18, 2026
@rcj1
rcj1 marked this pull request as ready for review May 18, 2026 23:03
CopilotAI review requested due to automatic review settings May 18, 2026 23:03

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 27/27 changed files
  • Comments generated: 0 new

CopilotAI review requested due to automatic review settings May 19, 2026 04:48

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 27/27 changed files
  • Comments generated: 0 new

@rcj1

rcj1 commented May 19, 2026

Copy link
Copy Markdown
Contributor

/ba-g #128372

@rcj1
rcj1 merged commit fb7020f into mainMay 19, 2026
121 of 126 checks passed
@rcj1
rcj1 deleted the copilot/add-dacdbi-getframes-api branch May 19, 2026 14:00
@dotnet-milestone-botdotnet-milestone-botBot added this to the 11.0-preview6 milestone May 21, 2026
@github-actionsgithub-actionsBot locked and limited conversation to collaborators Jun 21, 2026
Sign up for freeto subscribe to this conversation on GitHub. Already have an account? Sign in.

Projects

None yet

Development

Successfully merging this pull request may close these issues.

4 participants

@rcj1@noahfalk
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms"); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content

[cDAC] implement EnumerateInternalFrames and GetCountOfInternalFrames - #128241

Merged
rcj1 merged 13 commits into
mainfrom
copilot/add-dacdbi-getframes-api
May 19, 2026
Merged

[cDAC] implement EnumerateInternalFrames and GetCountOfInternalFrames#128241
rcj1 merged 13 commits into
mainfrom
copilot/add-dacdbi-getframes-api

Conversation

CopilotAI commented May 15, 2026

Copy link
Copy Markdown
Contributor

New StackWalk cDAC APIs:

IEnumerable<StackFrameData>GetFrames(TargetPointerthreadPointer)=>thrownewNotImplementedException();boolIsExceptionHandlingHelperInlinedCallFrame(TargetPointerframeAddress)=>thrownewNotImplementedException();DebuggerEvalDataGetDebuggerEvalData(TargetPointerfuncEvalFrameAddress)=>thrownewNotImplementedException();

… in cDAC via new Thread_1.GetFrames
Co-authored-by: rcj1 <77995559+rcj1@users.noreply.github.com>
CopilotAI requested review from Copilot and removed request for CopilotMay 15, 2026 02:21
@rcj1rcj1 added the NO-MERGE The PR is not ready for merge yet (see discussion for detailed reasons) label May 15, 2026
@rcj1rcj1 added the NO-REVIEW Experimental/testing PR, do NOT review it label May 15, 2026
@dotnet-policy-service

Copy link
Copy Markdown
Contributor

Tagging subscribers to this area: @steveisok, @tommcdon, @dotnet/dotnet-diag
See info in area-owners.md if you want to be subscribed.

CopilotAI review requested due to automatic review settings May 15, 2026 04:32

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Pull request overview

The PR's title and description say it deletes a single unused field (nativeCodeJITInfoToken) from DebuggerIPCE_JITFuncData, but the actual diff is a much larger reshape: the legacy DebuggerIPCE_* IPC structs (FuncData, JITFuncData, STRData) are renamed to Debugger_* and moved/restructured, the DAC Debugger_STRData now stores ctx/rd as CORDB_ADDRESS pointers into dbi-allocated buffers, Frame::GetStubFrameType() is added so GetInternalFrameType can replace its old transition/interception heuristics, and the cDAC gains real implementations of GetCountOfInternalFrames/EnumerateInternalFrames plus a new IStackWalk.GetFrames/IsExceptionHandlingHelperInlinedCallFrame/GetDebuggerEvalData surface (with tests and contract docs). The PR description significantly understates the scope of changes.

Changes:

  • Rename and restructure the dbi/DAC stack frame IPC structs and switch Debugger_STRData::ctx/rd to caller-allocated buffers referenced by CORDB_ADDRESS.
  • Add Frame::GetStubFrameType() polymorphic dispatch and rewrite DacDbiInterfaceImpl::GetInternalFrameType on top of it.
  • Add cDAC IStackWalk.GetFrames/IsExceptionHandlingHelperInlinedCallFrame/GetDebuggerEvalData and use them to implement GetCountOfInternalFrames/EnumerateInternalFrames, with new mock infrastructure and tests.
Show a summary per file
FileDescription
src/coreclr/debug/inc/dbgipcevents.hRemoves legacy DebuggerIPCE_FuncData/JITFuncData/STRData definitions (now defined in dacdbistructures.h).
src/coreclr/debug/inc/dacdbistructures.hAdds renamed Debugger_FuncData/Debugger_JITFuncData/Debugger_STRData with ctx/rd as CORDB_ADDRESS.
src/coreclr/debug/inc/dacdbistructures.inlUpdates NativeCodeFunctionData ctor to take Debugger_JITFuncData*.
src/coreclr/debug/inc/dacdbiinterface.hRenames the IPC struct in interface signatures and comments.
src/coreclr/inc/dacdbi.idlRenames DebuggerIPCE_STRData to Debugger_STRData in IDL.
src/coreclr/debug/daccess/dacdbiimpl.hUpdates dacdbi impl signatures to renamed types.
src/coreclr/debug/daccess/dacdbiimplstackwalk.cppUpdates rename, switches to caller-allocated ctx/rd, rewrites GetInternalFrameType via GetStubFrameType(); leaves a duplicate pJITFuncData->enCVersion assignment.
src/coreclr/vm/frames.h / frames.cppAdds Frame::StubFrameType enum, virtual GetStubFrameType_Impl per subclass, and dispatch.
src/coreclr/vm/datadescriptor/datadescriptor.incExposes DebuggerEval::m_methodToken/m_pAssembly to the cDAC data descriptor.
src/coreclr/debug/ee/debugger.h / debugger.cppAdds m_pAssembly to DebuggerEval and initializes it.
src/coreclr/debug/di/rsthread.cpp / rsstackwalk.cpp / rspriv.hUpdates dbi-side rename and allocates DT_CONTEXT/DebuggerREGDISPLAY for the new Debugger_STRData protocol.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Abstractions/Contracts/IStackWalk.csAdds InternalFrameType, StackFrameData, DebuggerEvalData, and three new IStackWalk methods.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Contracts/StackWalk/StackWalk_1.csImplements GetFrames, IsExceptionHandlingHelperInlinedCallFrame, GetDebuggerEvalData.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Contracts/StackWalk/FrameHandling/FrameIterator.csAdds GetInternalFrameType/IsExceptionHandlingHelperInlinedCallFrame; the latter omits the FrameHasActiveCall check.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Contracts/Thread_1.csAdds using System.Collections.Generic; (looks unused locally — only the using is shown changed).
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Data/Frames/DebuggerEval.csReads new MethodToken/AssemblyPtr fields.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Legacy/Dbi/IDacDbiInterface.csDefines managed mirrors of the new Debugger_* structs and the EnumerateInternalFrames callback signature.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Legacy/Dbi/DacDbiImpl.csProvides cDAC implementations of GetCountOfInternalFrames/EnumerateInternalFrames with DEBUG-only DAC cross-validation.
src/native/managed/cdac/tests/MockDescriptors/MockDescriptors.Frame.csNew mock Frame layouts and MockFrameBuilder helper.
src/native/managed/cdac/tests/MockDescriptors/MockDescriptors.Thread.csAdds a public Frame accessor on MockThread.
src/native/managed/cdac/tests/StackWalkTests.csNew tests for GetFrames, EH-helper ICF detection, and GetDebuggerEvalData.
docs/design/datacontracts/StackWalk.mdDocuments the new APIs and EH-helper marker constant.

Copilot's findings

  • Files reviewed: 26/26 changed files
  • Comments generated: 2

Comment threadsrc/coreclr/debug/daccess/dacdbiimplstackwalk.cpp Outdated
CopilotAI review requested due to automatic review settings May 15, 2026 04:39

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 25/25 changed files
  • Comments generated: 5

Comment threadsrc/coreclr/debug/inc/dbgipcevents.h
Comment threadsrc/coreclr/debug/daccess/dacdbiimplstackwalk.cpp Outdated
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
CopilotAI review requested due to automatic review settings May 15, 2026 04:56

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 25/25 changed files
  • Comments generated: 3

Comment threadsrc/coreclr/debug/inc/dacdbistructures.h
Comment threadsrc/coreclr/debug/inc/dacdbistructures.inl Outdated
Comment threadsrc/coreclr/debug/inc/dbgipcevents.h
@rcj1rcj1 changed the title Delete unused nativeCodeJITInfoToken from DebuggerIPCE_JITFuncData[cDAC] implement EnumerateInternalFrames and GetCountOfInternalFramesMay 15, 2026
@rcj1rcj1 removed NO-MERGE The PR is not ready for merge yet (see discussion for detailed reasons) NO-REVIEW Experimental/testing PR, do NOT review it labels May 15, 2026
@rcj1
rcj1 marked this pull request as ready for review May 15, 2026 05:10
@rcj1
rcj1 requested review from max-charlamb and noahfalkMay 15, 2026 05:10

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 26/26 changed files
  • Comments generated: 1

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
CopilotAI review requested due to automatic review settings May 16, 2026 03:59

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 26/26 changed files
  • Comments generated: 0 new

@rcj1rcj1 changed the title [cDAC] implement EnumerateInternalFrames and GetCountOfInternalFrames[cDAC] [WIP] implement EnumerateInternalFrames and GetCountOfInternalFramesMay 18, 2026
@rcj1
rcj1 marked this pull request as draft May 18, 2026 18:24

@noahfalknoahfalk left a comment

Copy link
Copy Markdown
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Looked good to me modulo a few comments inline

Comment threadsrc/coreclr/debug/inc/dacdbistructures.h Outdated
Comment threadsrc/coreclr/vm/frames.h
Comment threadsrc/native/managed/cdac/tests/MockDescriptors/MockDescriptors.Frame.cs Outdated
@rcj1rcj1 changed the title [cDAC] [WIP] implement EnumerateInternalFrames and GetCountOfInternalFrames[cDAC] implement EnumerateInternalFrames and GetCountOfInternalFramesMay 18, 2026
@rcj1
rcj1 marked this pull request as ready for review May 18, 2026 23:03
CopilotAI review requested due to automatic review settings May 18, 2026 23:03

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 27/27 changed files
  • Comments generated: 0 new

CopilotAI review requested due to automatic review settings May 19, 2026 04:48

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 27/27 changed files
  • Comments generated: 0 new

@rcj1

rcj1 commented May 19, 2026

Copy link
Copy Markdown
Contributor

/ba-g #128372

@rcj1
rcj1 merged commit fb7020f into mainMay 19, 2026
121 of 126 checks passed
@rcj1
rcj1 deleted the copilot/add-dacdbi-getframes-api branch May 19, 2026 14:00
@dotnet-milestone-botdotnet-milestone-botBot added this to the 11.0-preview6 milestone May 21, 2026
@github-actionsgithub-actionsBot locked and limited conversation to collaborators Jun 21, 2026
Sign up for freeto subscribe to this conversation on GitHub. Already have an account? Sign in.

Projects

None yet

Development

Successfully merging this pull request may close these issues.

4 participants

@rcj1@noahfalk
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links"); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + '
Skip to content

[cDAC] implement EnumerateInternalFrames and GetCountOfInternalFrames - #128241

Merged
rcj1 merged 13 commits into
mainfrom
copilot/add-dacdbi-getframes-api
May 19, 2026
Merged

[cDAC] implement EnumerateInternalFrames and GetCountOfInternalFrames#128241
rcj1 merged 13 commits into
mainfrom
copilot/add-dacdbi-getframes-api

Conversation

CopilotAI commented May 15, 2026

Copy link
Copy Markdown
Contributor

New StackWalk cDAC APIs:

IEnumerable<StackFrameData>GetFrames(TargetPointerthreadPointer)=>thrownewNotImplementedException();boolIsExceptionHandlingHelperInlinedCallFrame(TargetPointerframeAddress)=>thrownewNotImplementedException();DebuggerEvalDataGetDebuggerEvalData(TargetPointerfuncEvalFrameAddress)=>thrownewNotImplementedException();

… in cDAC via new Thread_1.GetFrames
Co-authored-by: rcj1 <77995559+rcj1@users.noreply.github.com>
CopilotAI requested review from Copilot and removed request for CopilotMay 15, 2026 02:21
@rcj1rcj1 added the NO-MERGE The PR is not ready for merge yet (see discussion for detailed reasons) label May 15, 2026
@rcj1rcj1 added the NO-REVIEW Experimental/testing PR, do NOT review it label May 15, 2026
@dotnet-policy-service

Copy link
Copy Markdown
Contributor

Tagging subscribers to this area: @steveisok, @tommcdon, @dotnet/dotnet-diag
See info in area-owners.md if you want to be subscribed.

CopilotAI review requested due to automatic review settings May 15, 2026 04:32

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Pull request overview

The PR's title and description say it deletes a single unused field (nativeCodeJITInfoToken) from DebuggerIPCE_JITFuncData, but the actual diff is a much larger reshape: the legacy DebuggerIPCE_* IPC structs (FuncData, JITFuncData, STRData) are renamed to Debugger_* and moved/restructured, the DAC Debugger_STRData now stores ctx/rd as CORDB_ADDRESS pointers into dbi-allocated buffers, Frame::GetStubFrameType() is added so GetInternalFrameType can replace its old transition/interception heuristics, and the cDAC gains real implementations of GetCountOfInternalFrames/EnumerateInternalFrames plus a new IStackWalk.GetFrames/IsExceptionHandlingHelperInlinedCallFrame/GetDebuggerEvalData surface (with tests and contract docs). The PR description significantly understates the scope of changes.

Changes:

  • Rename and restructure the dbi/DAC stack frame IPC structs and switch Debugger_STRData::ctx/rd to caller-allocated buffers referenced by CORDB_ADDRESS.
  • Add Frame::GetStubFrameType() polymorphic dispatch and rewrite DacDbiInterfaceImpl::GetInternalFrameType on top of it.
  • Add cDAC IStackWalk.GetFrames/IsExceptionHandlingHelperInlinedCallFrame/GetDebuggerEvalData and use them to implement GetCountOfInternalFrames/EnumerateInternalFrames, with new mock infrastructure and tests.
Show a summary per file
FileDescription
src/coreclr/debug/inc/dbgipcevents.hRemoves legacy DebuggerIPCE_FuncData/JITFuncData/STRData definitions (now defined in dacdbistructures.h).
src/coreclr/debug/inc/dacdbistructures.hAdds renamed Debugger_FuncData/Debugger_JITFuncData/Debugger_STRData with ctx/rd as CORDB_ADDRESS.
src/coreclr/debug/inc/dacdbistructures.inlUpdates NativeCodeFunctionData ctor to take Debugger_JITFuncData*.
src/coreclr/debug/inc/dacdbiinterface.hRenames the IPC struct in interface signatures and comments.
src/coreclr/inc/dacdbi.idlRenames DebuggerIPCE_STRData to Debugger_STRData in IDL.
src/coreclr/debug/daccess/dacdbiimpl.hUpdates dacdbi impl signatures to renamed types.
src/coreclr/debug/daccess/dacdbiimplstackwalk.cppUpdates rename, switches to caller-allocated ctx/rd, rewrites GetInternalFrameType via GetStubFrameType(); leaves a duplicate pJITFuncData->enCVersion assignment.
src/coreclr/vm/frames.h / frames.cppAdds Frame::StubFrameType enum, virtual GetStubFrameType_Impl per subclass, and dispatch.
src/coreclr/vm/datadescriptor/datadescriptor.incExposes DebuggerEval::m_methodToken/m_pAssembly to the cDAC data descriptor.
src/coreclr/debug/ee/debugger.h / debugger.cppAdds m_pAssembly to DebuggerEval and initializes it.
src/coreclr/debug/di/rsthread.cpp / rsstackwalk.cpp / rspriv.hUpdates dbi-side rename and allocates DT_CONTEXT/DebuggerREGDISPLAY for the new Debugger_STRData protocol.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Abstractions/Contracts/IStackWalk.csAdds InternalFrameType, StackFrameData, DebuggerEvalData, and three new IStackWalk methods.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Contracts/StackWalk/StackWalk_1.csImplements GetFrames, IsExceptionHandlingHelperInlinedCallFrame, GetDebuggerEvalData.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Contracts/StackWalk/FrameHandling/FrameIterator.csAdds GetInternalFrameType/IsExceptionHandlingHelperInlinedCallFrame; the latter omits the FrameHasActiveCall check.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Contracts/Thread_1.csAdds using System.Collections.Generic; (looks unused locally — only the using is shown changed).
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Data/Frames/DebuggerEval.csReads new MethodToken/AssemblyPtr fields.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Legacy/Dbi/IDacDbiInterface.csDefines managed mirrors of the new Debugger_* structs and the EnumerateInternalFrames callback signature.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Legacy/Dbi/DacDbiImpl.csProvides cDAC implementations of GetCountOfInternalFrames/EnumerateInternalFrames with DEBUG-only DAC cross-validation.
src/native/managed/cdac/tests/MockDescriptors/MockDescriptors.Frame.csNew mock Frame layouts and MockFrameBuilder helper.
src/native/managed/cdac/tests/MockDescriptors/MockDescriptors.Thread.csAdds a public Frame accessor on MockThread.
src/native/managed/cdac/tests/StackWalkTests.csNew tests for GetFrames, EH-helper ICF detection, and GetDebuggerEvalData.
docs/design/datacontracts/StackWalk.mdDocuments the new APIs and EH-helper marker constant.

Copilot's findings

  • Files reviewed: 26/26 changed files
  • Comments generated: 2

Comment threadsrc/coreclr/debug/daccess/dacdbiimplstackwalk.cpp Outdated
CopilotAI review requested due to automatic review settings May 15, 2026 04:39

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 25/25 changed files
  • Comments generated: 5

Comment threadsrc/coreclr/debug/inc/dbgipcevents.h
Comment threadsrc/coreclr/debug/daccess/dacdbiimplstackwalk.cpp Outdated
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
CopilotAI review requested due to automatic review settings May 15, 2026 04:56

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 25/25 changed files
  • Comments generated: 3

Comment threadsrc/coreclr/debug/inc/dacdbistructures.h
Comment threadsrc/coreclr/debug/inc/dacdbistructures.inl Outdated
Comment threadsrc/coreclr/debug/inc/dbgipcevents.h
@rcj1rcj1 changed the title Delete unused nativeCodeJITInfoToken from DebuggerIPCE_JITFuncData[cDAC] implement EnumerateInternalFrames and GetCountOfInternalFramesMay 15, 2026
@rcj1rcj1 removed NO-MERGE The PR is not ready for merge yet (see discussion for detailed reasons) NO-REVIEW Experimental/testing PR, do NOT review it labels May 15, 2026
@rcj1
rcj1 marked this pull request as ready for review May 15, 2026 05:10
@rcj1
rcj1 requested review from max-charlamb and noahfalkMay 15, 2026 05:10

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 26/26 changed files
  • Comments generated: 1

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
CopilotAI review requested due to automatic review settings May 16, 2026 03:59

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 26/26 changed files
  • Comments generated: 0 new

@rcj1rcj1 changed the title [cDAC] implement EnumerateInternalFrames and GetCountOfInternalFrames[cDAC] [WIP] implement EnumerateInternalFrames and GetCountOfInternalFramesMay 18, 2026
@rcj1
rcj1 marked this pull request as draft May 18, 2026 18:24

@noahfalknoahfalk left a comment

Copy link
Copy Markdown
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Looked good to me modulo a few comments inline

Comment threadsrc/coreclr/debug/inc/dacdbistructures.h Outdated
Comment threadsrc/coreclr/vm/frames.h
Comment threadsrc/native/managed/cdac/tests/MockDescriptors/MockDescriptors.Frame.cs Outdated
@rcj1rcj1 changed the title [cDAC] [WIP] implement EnumerateInternalFrames and GetCountOfInternalFrames[cDAC] implement EnumerateInternalFrames and GetCountOfInternalFramesMay 18, 2026
@rcj1
rcj1 marked this pull request as ready for review May 18, 2026 23:03
CopilotAI review requested due to automatic review settings May 18, 2026 23:03

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 27/27 changed files
  • Comments generated: 0 new

CopilotAI review requested due to automatic review settings May 19, 2026 04:48

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 27/27 changed files
  • Comments generated: 0 new

@rcj1

rcj1 commented May 19, 2026

Copy link
Copy Markdown
Contributor

/ba-g #128372

@rcj1
rcj1 merged commit fb7020f into mainMay 19, 2026
121 of 126 checks passed
@rcj1
rcj1 deleted the copilot/add-dacdbi-getframes-api branch May 19, 2026 14:00
@dotnet-milestone-botdotnet-milestone-botBot added this to the 11.0-preview6 milestone May 21, 2026
@github-actionsgithub-actionsBot locked and limited conversation to collaborators Jun 21, 2026
Sign up for freeto subscribe to this conversation on GitHub. Already have an account? Sign in.

Projects

None yet

Development

Successfully merging this pull request may close these issues.

4 participants

@rcj1@noahfalk
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default"); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content

[cDAC] implement EnumerateInternalFrames and GetCountOfInternalFrames - #128241

Merged
rcj1 merged 13 commits into
mainfrom
copilot/add-dacdbi-getframes-api
May 19, 2026
Merged

[cDAC] implement EnumerateInternalFrames and GetCountOfInternalFrames#128241
rcj1 merged 13 commits into
mainfrom
copilot/add-dacdbi-getframes-api

Conversation

CopilotAI commented May 15, 2026

Copy link
Copy Markdown
Contributor

New StackWalk cDAC APIs:

IEnumerable<StackFrameData>GetFrames(TargetPointerthreadPointer)=>thrownewNotImplementedException();boolIsExceptionHandlingHelperInlinedCallFrame(TargetPointerframeAddress)=>thrownewNotImplementedException();DebuggerEvalDataGetDebuggerEvalData(TargetPointerfuncEvalFrameAddress)=>thrownewNotImplementedException();

… in cDAC via new Thread_1.GetFrames
Co-authored-by: rcj1 <77995559+rcj1@users.noreply.github.com>
CopilotAI requested review from Copilot and removed request for CopilotMay 15, 2026 02:21
@rcj1rcj1 added the NO-MERGE The PR is not ready for merge yet (see discussion for detailed reasons) label May 15, 2026
@rcj1rcj1 added the NO-REVIEW Experimental/testing PR, do NOT review it label May 15, 2026
@dotnet-policy-service

Copy link
Copy Markdown
Contributor

Tagging subscribers to this area: @steveisok, @tommcdon, @dotnet/dotnet-diag
See info in area-owners.md if you want to be subscribed.

CopilotAI review requested due to automatic review settings May 15, 2026 04:32

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Pull request overview

The PR's title and description say it deletes a single unused field (nativeCodeJITInfoToken) from DebuggerIPCE_JITFuncData, but the actual diff is a much larger reshape: the legacy DebuggerIPCE_* IPC structs (FuncData, JITFuncData, STRData) are renamed to Debugger_* and moved/restructured, the DAC Debugger_STRData now stores ctx/rd as CORDB_ADDRESS pointers into dbi-allocated buffers, Frame::GetStubFrameType() is added so GetInternalFrameType can replace its old transition/interception heuristics, and the cDAC gains real implementations of GetCountOfInternalFrames/EnumerateInternalFrames plus a new IStackWalk.GetFrames/IsExceptionHandlingHelperInlinedCallFrame/GetDebuggerEvalData surface (with tests and contract docs). The PR description significantly understates the scope of changes.

Changes:

  • Rename and restructure the dbi/DAC stack frame IPC structs and switch Debugger_STRData::ctx/rd to caller-allocated buffers referenced by CORDB_ADDRESS.
  • Add Frame::GetStubFrameType() polymorphic dispatch and rewrite DacDbiInterfaceImpl::GetInternalFrameType on top of it.
  • Add cDAC IStackWalk.GetFrames/IsExceptionHandlingHelperInlinedCallFrame/GetDebuggerEvalData and use them to implement GetCountOfInternalFrames/EnumerateInternalFrames, with new mock infrastructure and tests.
Show a summary per file
FileDescription
src/coreclr/debug/inc/dbgipcevents.hRemoves legacy DebuggerIPCE_FuncData/JITFuncData/STRData definitions (now defined in dacdbistructures.h).
src/coreclr/debug/inc/dacdbistructures.hAdds renamed Debugger_FuncData/Debugger_JITFuncData/Debugger_STRData with ctx/rd as CORDB_ADDRESS.
src/coreclr/debug/inc/dacdbistructures.inlUpdates NativeCodeFunctionData ctor to take Debugger_JITFuncData*.
src/coreclr/debug/inc/dacdbiinterface.hRenames the IPC struct in interface signatures and comments.
src/coreclr/inc/dacdbi.idlRenames DebuggerIPCE_STRData to Debugger_STRData in IDL.
src/coreclr/debug/daccess/dacdbiimpl.hUpdates dacdbi impl signatures to renamed types.
src/coreclr/debug/daccess/dacdbiimplstackwalk.cppUpdates rename, switches to caller-allocated ctx/rd, rewrites GetInternalFrameType via GetStubFrameType(); leaves a duplicate pJITFuncData->enCVersion assignment.
src/coreclr/vm/frames.h / frames.cppAdds Frame::StubFrameType enum, virtual GetStubFrameType_Impl per subclass, and dispatch.
src/coreclr/vm/datadescriptor/datadescriptor.incExposes DebuggerEval::m_methodToken/m_pAssembly to the cDAC data descriptor.
src/coreclr/debug/ee/debugger.h / debugger.cppAdds m_pAssembly to DebuggerEval and initializes it.
src/coreclr/debug/di/rsthread.cpp / rsstackwalk.cpp / rspriv.hUpdates dbi-side rename and allocates DT_CONTEXT/DebuggerREGDISPLAY for the new Debugger_STRData protocol.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Abstractions/Contracts/IStackWalk.csAdds InternalFrameType, StackFrameData, DebuggerEvalData, and three new IStackWalk methods.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Contracts/StackWalk/StackWalk_1.csImplements GetFrames, IsExceptionHandlingHelperInlinedCallFrame, GetDebuggerEvalData.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Contracts/StackWalk/FrameHandling/FrameIterator.csAdds GetInternalFrameType/IsExceptionHandlingHelperInlinedCallFrame; the latter omits the FrameHasActiveCall check.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Contracts/Thread_1.csAdds using System.Collections.Generic; (looks unused locally — only the using is shown changed).
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Data/Frames/DebuggerEval.csReads new MethodToken/AssemblyPtr fields.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Legacy/Dbi/IDacDbiInterface.csDefines managed mirrors of the new Debugger_* structs and the EnumerateInternalFrames callback signature.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Legacy/Dbi/DacDbiImpl.csProvides cDAC implementations of GetCountOfInternalFrames/EnumerateInternalFrames with DEBUG-only DAC cross-validation.
src/native/managed/cdac/tests/MockDescriptors/MockDescriptors.Frame.csNew mock Frame layouts and MockFrameBuilder helper.
src/native/managed/cdac/tests/MockDescriptors/MockDescriptors.Thread.csAdds a public Frame accessor on MockThread.
src/native/managed/cdac/tests/StackWalkTests.csNew tests for GetFrames, EH-helper ICF detection, and GetDebuggerEvalData.
docs/design/datacontracts/StackWalk.mdDocuments the new APIs and EH-helper marker constant.

Copilot's findings

  • Files reviewed: 26/26 changed files
  • Comments generated: 2

Comment threadsrc/coreclr/debug/daccess/dacdbiimplstackwalk.cpp Outdated
CopilotAI review requested due to automatic review settings May 15, 2026 04:39

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 25/25 changed files
  • Comments generated: 5

Comment threadsrc/coreclr/debug/inc/dbgipcevents.h
Comment threadsrc/coreclr/debug/daccess/dacdbiimplstackwalk.cpp Outdated
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
CopilotAI review requested due to automatic review settings May 15, 2026 04:56

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 25/25 changed files
  • Comments generated: 3

Comment threadsrc/coreclr/debug/inc/dacdbistructures.h
Comment threadsrc/coreclr/debug/inc/dacdbistructures.inl Outdated
Comment threadsrc/coreclr/debug/inc/dbgipcevents.h
@rcj1rcj1 changed the title Delete unused nativeCodeJITInfoToken from DebuggerIPCE_JITFuncData[cDAC] implement EnumerateInternalFrames and GetCountOfInternalFramesMay 15, 2026
@rcj1rcj1 removed NO-MERGE The PR is not ready for merge yet (see discussion for detailed reasons) NO-REVIEW Experimental/testing PR, do NOT review it labels May 15, 2026
@rcj1
rcj1 marked this pull request as ready for review May 15, 2026 05:10
@rcj1
rcj1 requested review from max-charlamb and noahfalkMay 15, 2026 05:10

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 26/26 changed files
  • Comments generated: 1

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
CopilotAI review requested due to automatic review settings May 16, 2026 03:59

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 26/26 changed files
  • Comments generated: 0 new

@rcj1rcj1 changed the title [cDAC] implement EnumerateInternalFrames and GetCountOfInternalFrames[cDAC] [WIP] implement EnumerateInternalFrames and GetCountOfInternalFramesMay 18, 2026
@rcj1
rcj1 marked this pull request as draft May 18, 2026 18:24

@noahfalknoahfalk left a comment

Copy link
Copy Markdown
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Looked good to me modulo a few comments inline

Comment threadsrc/coreclr/debug/inc/dacdbistructures.h Outdated
Comment threadsrc/coreclr/vm/frames.h
Comment threadsrc/native/managed/cdac/tests/MockDescriptors/MockDescriptors.Frame.cs Outdated
@rcj1rcj1 changed the title [cDAC] [WIP] implement EnumerateInternalFrames and GetCountOfInternalFrames[cDAC] implement EnumerateInternalFrames and GetCountOfInternalFramesMay 18, 2026
@rcj1
rcj1 marked this pull request as ready for review May 18, 2026 23:03
CopilotAI review requested due to automatic review settings May 18, 2026 23:03

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 27/27 changed files
  • Comments generated: 0 new

CopilotAI review requested due to automatic review settings May 19, 2026 04:48

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 27/27 changed files
  • Comments generated: 0 new

@rcj1

rcj1 commented May 19, 2026

Copy link
Copy Markdown
Contributor

/ba-g #128372

@rcj1
rcj1 merged commit fb7020f into mainMay 19, 2026
121 of 126 checks passed
@rcj1
rcj1 deleted the copilot/add-dacdbi-getframes-api branch May 19, 2026 14:00
@dotnet-milestone-botdotnet-milestone-botBot added this to the 11.0-preview6 milestone May 21, 2026
@github-actionsgithub-actionsBot locked and limited conversation to collaborators Jun 21, 2026
Sign up for freeto subscribe to this conversation on GitHub. Already have an account? Sign in.

Projects

None yet

Development

Successfully merging this pull request may close these issues.

4 participants

@rcj1@noahfalk
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers"); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content

[cDAC] implement EnumerateInternalFrames and GetCountOfInternalFrames - #128241

Merged
rcj1 merged 13 commits into
mainfrom
copilot/add-dacdbi-getframes-api
May 19, 2026
Merged

[cDAC] implement EnumerateInternalFrames and GetCountOfInternalFrames#128241
rcj1 merged 13 commits into
mainfrom
copilot/add-dacdbi-getframes-api

Conversation

CopilotAI commented May 15, 2026

Copy link
Copy Markdown
Contributor

New StackWalk cDAC APIs:

IEnumerable<StackFrameData>GetFrames(TargetPointerthreadPointer)=>thrownewNotImplementedException();boolIsExceptionHandlingHelperInlinedCallFrame(TargetPointerframeAddress)=>thrownewNotImplementedException();DebuggerEvalDataGetDebuggerEvalData(TargetPointerfuncEvalFrameAddress)=>thrownewNotImplementedException();

… in cDAC via new Thread_1.GetFrames
Co-authored-by: rcj1 <77995559+rcj1@users.noreply.github.com>
CopilotAI requested review from Copilot and removed request for CopilotMay 15, 2026 02:21
@rcj1rcj1 added the NO-MERGE The PR is not ready for merge yet (see discussion for detailed reasons) label May 15, 2026
@rcj1rcj1 added the NO-REVIEW Experimental/testing PR, do NOT review it label May 15, 2026
@dotnet-policy-service

Copy link
Copy Markdown
Contributor

Tagging subscribers to this area: @steveisok, @tommcdon, @dotnet/dotnet-diag
See info in area-owners.md if you want to be subscribed.

CopilotAI review requested due to automatic review settings May 15, 2026 04:32

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Pull request overview

The PR's title and description say it deletes a single unused field (nativeCodeJITInfoToken) from DebuggerIPCE_JITFuncData, but the actual diff is a much larger reshape: the legacy DebuggerIPCE_* IPC structs (FuncData, JITFuncData, STRData) are renamed to Debugger_* and moved/restructured, the DAC Debugger_STRData now stores ctx/rd as CORDB_ADDRESS pointers into dbi-allocated buffers, Frame::GetStubFrameType() is added so GetInternalFrameType can replace its old transition/interception heuristics, and the cDAC gains real implementations of GetCountOfInternalFrames/EnumerateInternalFrames plus a new IStackWalk.GetFrames/IsExceptionHandlingHelperInlinedCallFrame/GetDebuggerEvalData surface (with tests and contract docs). The PR description significantly understates the scope of changes.

Changes:

  • Rename and restructure the dbi/DAC stack frame IPC structs and switch Debugger_STRData::ctx/rd to caller-allocated buffers referenced by CORDB_ADDRESS.
  • Add Frame::GetStubFrameType() polymorphic dispatch and rewrite DacDbiInterfaceImpl::GetInternalFrameType on top of it.
  • Add cDAC IStackWalk.GetFrames/IsExceptionHandlingHelperInlinedCallFrame/GetDebuggerEvalData and use them to implement GetCountOfInternalFrames/EnumerateInternalFrames, with new mock infrastructure and tests.
Show a summary per file
FileDescription
src/coreclr/debug/inc/dbgipcevents.hRemoves legacy DebuggerIPCE_FuncData/JITFuncData/STRData definitions (now defined in dacdbistructures.h).
src/coreclr/debug/inc/dacdbistructures.hAdds renamed Debugger_FuncData/Debugger_JITFuncData/Debugger_STRData with ctx/rd as CORDB_ADDRESS.
src/coreclr/debug/inc/dacdbistructures.inlUpdates NativeCodeFunctionData ctor to take Debugger_JITFuncData*.
src/coreclr/debug/inc/dacdbiinterface.hRenames the IPC struct in interface signatures and comments.
src/coreclr/inc/dacdbi.idlRenames DebuggerIPCE_STRData to Debugger_STRData in IDL.
src/coreclr/debug/daccess/dacdbiimpl.hUpdates dacdbi impl signatures to renamed types.
src/coreclr/debug/daccess/dacdbiimplstackwalk.cppUpdates rename, switches to caller-allocated ctx/rd, rewrites GetInternalFrameType via GetStubFrameType(); leaves a duplicate pJITFuncData->enCVersion assignment.
src/coreclr/vm/frames.h / frames.cppAdds Frame::StubFrameType enum, virtual GetStubFrameType_Impl per subclass, and dispatch.
src/coreclr/vm/datadescriptor/datadescriptor.incExposes DebuggerEval::m_methodToken/m_pAssembly to the cDAC data descriptor.
src/coreclr/debug/ee/debugger.h / debugger.cppAdds m_pAssembly to DebuggerEval and initializes it.
src/coreclr/debug/di/rsthread.cpp / rsstackwalk.cpp / rspriv.hUpdates dbi-side rename and allocates DT_CONTEXT/DebuggerREGDISPLAY for the new Debugger_STRData protocol.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Abstractions/Contracts/IStackWalk.csAdds InternalFrameType, StackFrameData, DebuggerEvalData, and three new IStackWalk methods.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Contracts/StackWalk/StackWalk_1.csImplements GetFrames, IsExceptionHandlingHelperInlinedCallFrame, GetDebuggerEvalData.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Contracts/StackWalk/FrameHandling/FrameIterator.csAdds GetInternalFrameType/IsExceptionHandlingHelperInlinedCallFrame; the latter omits the FrameHasActiveCall check.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Contracts/Thread_1.csAdds using System.Collections.Generic; (looks unused locally — only the using is shown changed).
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Data/Frames/DebuggerEval.csReads new MethodToken/AssemblyPtr fields.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Legacy/Dbi/IDacDbiInterface.csDefines managed mirrors of the new Debugger_* structs and the EnumerateInternalFrames callback signature.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Legacy/Dbi/DacDbiImpl.csProvides cDAC implementations of GetCountOfInternalFrames/EnumerateInternalFrames with DEBUG-only DAC cross-validation.
src/native/managed/cdac/tests/MockDescriptors/MockDescriptors.Frame.csNew mock Frame layouts and MockFrameBuilder helper.
src/native/managed/cdac/tests/MockDescriptors/MockDescriptors.Thread.csAdds a public Frame accessor on MockThread.
src/native/managed/cdac/tests/StackWalkTests.csNew tests for GetFrames, EH-helper ICF detection, and GetDebuggerEvalData.
docs/design/datacontracts/StackWalk.mdDocuments the new APIs and EH-helper marker constant.

Copilot's findings

  • Files reviewed: 26/26 changed files
  • Comments generated: 2

Comment threadsrc/coreclr/debug/daccess/dacdbiimplstackwalk.cpp Outdated
CopilotAI review requested due to automatic review settings May 15, 2026 04:39

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 25/25 changed files
  • Comments generated: 5

Comment threadsrc/coreclr/debug/inc/dbgipcevents.h
Comment threadsrc/coreclr/debug/daccess/dacdbiimplstackwalk.cpp Outdated
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
CopilotAI review requested due to automatic review settings May 15, 2026 04:56

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 25/25 changed files
  • Comments generated: 3

Comment threadsrc/coreclr/debug/inc/dacdbistructures.h
Comment threadsrc/coreclr/debug/inc/dacdbistructures.inl Outdated
Comment threadsrc/coreclr/debug/inc/dbgipcevents.h
@rcj1rcj1 changed the title Delete unused nativeCodeJITInfoToken from DebuggerIPCE_JITFuncData[cDAC] implement EnumerateInternalFrames and GetCountOfInternalFramesMay 15, 2026
@rcj1rcj1 removed NO-MERGE The PR is not ready for merge yet (see discussion for detailed reasons) NO-REVIEW Experimental/testing PR, do NOT review it labels May 15, 2026
@rcj1
rcj1 marked this pull request as ready for review May 15, 2026 05:10
@rcj1
rcj1 requested review from max-charlamb and noahfalkMay 15, 2026 05:10

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 26/26 changed files
  • Comments generated: 1

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
CopilotAI review requested due to automatic review settings May 16, 2026 03:59

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 26/26 changed files
  • Comments generated: 0 new

@rcj1rcj1 changed the title [cDAC] implement EnumerateInternalFrames and GetCountOfInternalFrames[cDAC] [WIP] implement EnumerateInternalFrames and GetCountOfInternalFramesMay 18, 2026
@rcj1
rcj1 marked this pull request as draft May 18, 2026 18:24

@noahfalknoahfalk left a comment

Copy link
Copy Markdown
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Looked good to me modulo a few comments inline

Comment threadsrc/coreclr/debug/inc/dacdbistructures.h Outdated
Comment threadsrc/coreclr/vm/frames.h
Comment threadsrc/native/managed/cdac/tests/MockDescriptors/MockDescriptors.Frame.cs Outdated
@rcj1rcj1 changed the title [cDAC] [WIP] implement EnumerateInternalFrames and GetCountOfInternalFrames[cDAC] implement EnumerateInternalFrames and GetCountOfInternalFramesMay 18, 2026
@rcj1
rcj1 marked this pull request as ready for review May 18, 2026 23:03
CopilotAI review requested due to automatic review settings May 18, 2026 23:03

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 27/27 changed files
  • Comments generated: 0 new

CopilotAI review requested due to automatic review settings May 19, 2026 04:48

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 27/27 changed files
  • Comments generated: 0 new

@rcj1

rcj1 commented May 19, 2026

Copy link
Copy Markdown
Contributor

/ba-g #128372

@rcj1
rcj1 merged commit fb7020f into mainMay 19, 2026
121 of 126 checks passed
@rcj1
rcj1 deleted the copilot/add-dacdbi-getframes-api branch May 19, 2026 14:00
@dotnet-milestone-botdotnet-milestone-botBot added this to the 11.0-preview6 milestone May 21, 2026
@github-actionsgithub-actionsBot locked and limited conversation to collaborators Jun 21, 2026
Sign up for freeto subscribe to this conversation on GitHub. Already have an account? Sign in.

Projects

None yet

Development

Successfully merging this pull request may close these issues.

4 participants

@rcj1@noahfalk
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode"); } } catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); } })(); })();
Skip to content

[cDAC] implement EnumerateInternalFrames and GetCountOfInternalFrames - #128241

Merged
rcj1 merged 13 commits into
mainfrom
copilot/add-dacdbi-getframes-api
May 19, 2026
Merged

[cDAC] implement EnumerateInternalFrames and GetCountOfInternalFrames#128241
rcj1 merged 13 commits into
mainfrom
copilot/add-dacdbi-getframes-api

Conversation

CopilotAI commented May 15, 2026

Copy link
Copy Markdown
Contributor

New StackWalk cDAC APIs:

IEnumerable<StackFrameData>GetFrames(TargetPointerthreadPointer)=>thrownewNotImplementedException();boolIsExceptionHandlingHelperInlinedCallFrame(TargetPointerframeAddress)=>thrownewNotImplementedException();DebuggerEvalDataGetDebuggerEvalData(TargetPointerfuncEvalFrameAddress)=>thrownewNotImplementedException();

… in cDAC via new Thread_1.GetFrames
Co-authored-by: rcj1 <77995559+rcj1@users.noreply.github.com>
CopilotAI requested review from Copilot and removed request for CopilotMay 15, 2026 02:21
@rcj1rcj1 added the NO-MERGE The PR is not ready for merge yet (see discussion for detailed reasons) label May 15, 2026
@rcj1rcj1 added the NO-REVIEW Experimental/testing PR, do NOT review it label May 15, 2026
@dotnet-policy-service

Copy link
Copy Markdown
Contributor

Tagging subscribers to this area: @steveisok, @tommcdon, @dotnet/dotnet-diag
See info in area-owners.md if you want to be subscribed.

CopilotAI review requested due to automatic review settings May 15, 2026 04:32

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Pull request overview

The PR's title and description say it deletes a single unused field (nativeCodeJITInfoToken) from DebuggerIPCE_JITFuncData, but the actual diff is a much larger reshape: the legacy DebuggerIPCE_* IPC structs (FuncData, JITFuncData, STRData) are renamed to Debugger_* and moved/restructured, the DAC Debugger_STRData now stores ctx/rd as CORDB_ADDRESS pointers into dbi-allocated buffers, Frame::GetStubFrameType() is added so GetInternalFrameType can replace its old transition/interception heuristics, and the cDAC gains real implementations of GetCountOfInternalFrames/EnumerateInternalFrames plus a new IStackWalk.GetFrames/IsExceptionHandlingHelperInlinedCallFrame/GetDebuggerEvalData surface (with tests and contract docs). The PR description significantly understates the scope of changes.

Changes:

  • Rename and restructure the dbi/DAC stack frame IPC structs and switch Debugger_STRData::ctx/rd to caller-allocated buffers referenced by CORDB_ADDRESS.
  • Add Frame::GetStubFrameType() polymorphic dispatch and rewrite DacDbiInterfaceImpl::GetInternalFrameType on top of it.
  • Add cDAC IStackWalk.GetFrames/IsExceptionHandlingHelperInlinedCallFrame/GetDebuggerEvalData and use them to implement GetCountOfInternalFrames/EnumerateInternalFrames, with new mock infrastructure and tests.
Show a summary per file
FileDescription
src/coreclr/debug/inc/dbgipcevents.hRemoves legacy DebuggerIPCE_FuncData/JITFuncData/STRData definitions (now defined in dacdbistructures.h).
src/coreclr/debug/inc/dacdbistructures.hAdds renamed Debugger_FuncData/Debugger_JITFuncData/Debugger_STRData with ctx/rd as CORDB_ADDRESS.
src/coreclr/debug/inc/dacdbistructures.inlUpdates NativeCodeFunctionData ctor to take Debugger_JITFuncData*.
src/coreclr/debug/inc/dacdbiinterface.hRenames the IPC struct in interface signatures and comments.
src/coreclr/inc/dacdbi.idlRenames DebuggerIPCE_STRData to Debugger_STRData in IDL.
src/coreclr/debug/daccess/dacdbiimpl.hUpdates dacdbi impl signatures to renamed types.
src/coreclr/debug/daccess/dacdbiimplstackwalk.cppUpdates rename, switches to caller-allocated ctx/rd, rewrites GetInternalFrameType via GetStubFrameType(); leaves a duplicate pJITFuncData->enCVersion assignment.
src/coreclr/vm/frames.h / frames.cppAdds Frame::StubFrameType enum, virtual GetStubFrameType_Impl per subclass, and dispatch.
src/coreclr/vm/datadescriptor/datadescriptor.incExposes DebuggerEval::m_methodToken/m_pAssembly to the cDAC data descriptor.
src/coreclr/debug/ee/debugger.h / debugger.cppAdds m_pAssembly to DebuggerEval and initializes it.
src/coreclr/debug/di/rsthread.cpp / rsstackwalk.cpp / rspriv.hUpdates dbi-side rename and allocates DT_CONTEXT/DebuggerREGDISPLAY for the new Debugger_STRData protocol.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Abstractions/Contracts/IStackWalk.csAdds InternalFrameType, StackFrameData, DebuggerEvalData, and three new IStackWalk methods.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Contracts/StackWalk/StackWalk_1.csImplements GetFrames, IsExceptionHandlingHelperInlinedCallFrame, GetDebuggerEvalData.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Contracts/StackWalk/FrameHandling/FrameIterator.csAdds GetInternalFrameType/IsExceptionHandlingHelperInlinedCallFrame; the latter omits the FrameHasActiveCall check.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Contracts/Thread_1.csAdds using System.Collections.Generic; (looks unused locally — only the using is shown changed).
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Data/Frames/DebuggerEval.csReads new MethodToken/AssemblyPtr fields.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Legacy/Dbi/IDacDbiInterface.csDefines managed mirrors of the new Debugger_* structs and the EnumerateInternalFrames callback signature.
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Legacy/Dbi/DacDbiImpl.csProvides cDAC implementations of GetCountOfInternalFrames/EnumerateInternalFrames with DEBUG-only DAC cross-validation.
src/native/managed/cdac/tests/MockDescriptors/MockDescriptors.Frame.csNew mock Frame layouts and MockFrameBuilder helper.
src/native/managed/cdac/tests/MockDescriptors/MockDescriptors.Thread.csAdds a public Frame accessor on MockThread.
src/native/managed/cdac/tests/StackWalkTests.csNew tests for GetFrames, EH-helper ICF detection, and GetDebuggerEvalData.
docs/design/datacontracts/StackWalk.mdDocuments the new APIs and EH-helper marker constant.

Copilot's findings

  • Files reviewed: 26/26 changed files
  • Comments generated: 2

Comment threadsrc/coreclr/debug/daccess/dacdbiimplstackwalk.cpp Outdated
CopilotAI review requested due to automatic review settings May 15, 2026 04:39

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 25/25 changed files
  • Comments generated: 5

Comment threadsrc/coreclr/debug/inc/dbgipcevents.h
Comment threadsrc/coreclr/debug/daccess/dacdbiimplstackwalk.cpp Outdated
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
CopilotAI review requested due to automatic review settings May 15, 2026 04:56

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 25/25 changed files
  • Comments generated: 3

Comment threadsrc/coreclr/debug/inc/dacdbistructures.h
Comment threadsrc/coreclr/debug/inc/dacdbistructures.inl Outdated
Comment threadsrc/coreclr/debug/inc/dbgipcevents.h
@rcj1rcj1 changed the title Delete unused nativeCodeJITInfoToken from DebuggerIPCE_JITFuncData[cDAC] implement EnumerateInternalFrames and GetCountOfInternalFramesMay 15, 2026
@rcj1rcj1 removed NO-MERGE The PR is not ready for merge yet (see discussion for detailed reasons) NO-REVIEW Experimental/testing PR, do NOT review it labels May 15, 2026
@rcj1
rcj1 marked this pull request as ready for review May 15, 2026 05:10
@rcj1
rcj1 requested review from max-charlamb and noahfalkMay 15, 2026 05:10

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 26/26 changed files
  • Comments generated: 1

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
CopilotAI review requested due to automatic review settings May 16, 2026 03:59

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 26/26 changed files
  • Comments generated: 0 new

@rcj1rcj1 changed the title [cDAC] implement EnumerateInternalFrames and GetCountOfInternalFrames[cDAC] [WIP] implement EnumerateInternalFrames and GetCountOfInternalFramesMay 18, 2026
@rcj1
rcj1 marked this pull request as draft May 18, 2026 18:24

@noahfalknoahfalk left a comment

Copy link
Copy Markdown
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Looked good to me modulo a few comments inline

Comment threadsrc/coreclr/debug/inc/dacdbistructures.h Outdated
Comment threadsrc/coreclr/vm/frames.h
Comment threadsrc/native/managed/cdac/tests/MockDescriptors/MockDescriptors.Frame.cs Outdated
@rcj1rcj1 changed the title [cDAC] [WIP] implement EnumerateInternalFrames and GetCountOfInternalFrames[cDAC] implement EnumerateInternalFrames and GetCountOfInternalFramesMay 18, 2026
@rcj1
rcj1 marked this pull request as ready for review May 18, 2026 23:03
CopilotAI review requested due to automatic review settings May 18, 2026 23:03

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 27/27 changed files
  • Comments generated: 0 new

CopilotAI review requested due to automatic review settings May 19, 2026 04:48

CopilotAI left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot's findings

  • Files reviewed: 27/27 changed files
  • Comments generated: 0 new

@rcj1

rcj1 commented May 19, 2026

Copy link
Copy Markdown
Contributor

/ba-g #128372

@rcj1
rcj1 merged commit fb7020f into mainMay 19, 2026
121 of 126 checks passed
@rcj1
rcj1 deleted the copilot/add-dacdbi-getframes-api branch May 19, 2026 14:00
@dotnet-milestone-botdotnet-milestone-botBot added this to the 11.0-preview6 milestone May 21, 2026
@github-actionsgithub-actionsBot locked and limited conversation to collaborators Jun 21, 2026
Sign up for freeto subscribe to this conversation on GitHub. Already have an account? Sign in.

Projects

None yet

Development

Successfully merging this pull request may close these issues.

4 participants

@rcj1@noahfalk