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Merge changes from TFS #1737
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Merge changes from TFS #1737
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…This corresponds to the following user story: 1200238. As a profiler developer, I want to access PDB content for dynamic assemblies in the ETW event stream, so that I can show my users source for their callstack frames. The main function in eventtrace.cpp, EmitCodeSymbols, divides the pdb stream into appropriate chunks and transmits them as events in order. There are helper functions which have been taken from the corresponding code in Desktop (Netfxdev1) to provide a dynamically loaded pdb through the profiler authored by Noah. The test uses EventToSymbols, which is based on TraceEventParser to turn on the CodeSymbols and ModuleLoad keywords and listens for events that send out pdb chunks. It then concatenates the chunks to create the pdb on disk. The BigPdb.cs program loads a dll and pdb dynamically, which triggers the events by the runtime. Once the pdb is recreated, it is compared with the original to make sure there are no differences and if not, the test is declared as passed. The test also uses an EventSource event to transmit a unique cookie to make sure the pdb created corresponds to the process under test, in case there are mulitple instances of the test running. [tfs-changeset: 1535373]
[tfs-changeset: 1535699]
picenka21
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Feb 18, 2022
Merge changes from TFS Commit migrated from dotnet/coreclr@8d80e96
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