[cDAC] IXCLRDataMethodInstance::GetILOffsetsByAddress

[max-charlamb]

No description provided.

[Copilot]

Pull Request Overview

This PR implements the IXCLRDataMethodInstance::GetILOffsetsByAddress method in the cDAC data contract system. The implementation adds support for reading debug information that maps native code addresses to IL offsets, which is essential for debugging scenarios where mapping between native and managed code is needed.

Key Changes:

• Adds a new IDebugInfo contract for accessing debug information from native code
• Implements debug info parsing for both jitted code (EEJitManager) and ReadyToRun code (ReadyToRunJitManager)
• Updates execution manager to provide debug info access through GetDebugInfo method

Reviewed Changes

Copilot reviewed 35 out of 37 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
src/native/managed/cdac/mscordaccore_universal/Legacy/ClrDataMethodInstance.cs	Implements the main GetILOffsetsByAddress method with debug validation
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Contracts/DebugInfo/DebugInfo_1.cs	Core debug info parsing implementation with bounds data decoding
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Contracts/ExecutionManager/ExecutionManagerCore.EEJitManager.cs	Debug info access for jitted code via RealCodeHeader
src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Contracts/ExecutionManager/ExecutionManagerCore.ReadyToRunJitManager.cs	Debug info access for ReadyToRun code via native arrays
src/coreclr/vm/readytoruninfo.cpp	Updates ReadyToRun initialization to cache debug info section
src/coreclr/tools/aot/ILCompiler.Reflection.ReadyToRun/NativeReader.cs	Changes Stream.Read to ReadExactly for exact byte reading