36 lines
2.0 KiB
Markdown
36 lines
2.0 KiB
Markdown
# crunchersharp
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Program analyses debugger information file (PDB, so Microsoft Visual C++ only) and presents info about user defined structures (size, padding, cachelines, functions etc).
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- You can filter by namespace, search for a specific symbol
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- You can import a .csv with the instance count to get the total waste, the format should be "Class Name, Number of instances"
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- You can compare two PDBs
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- You search for useless vtables, useless virtual...
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Original blog post: http://msinilo.pl/blog/?p=425
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# Getting Started
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### Windows 10 Visual Studio 2019
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1. Open command prompt or PowerShell **as Admin**
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2. Find the directory where your `msdia` dll is located, which by default is loacted with you Visual Studio installation:
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```
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cd C:\Program Files (x86)\Microsoft Visual Studio\2019\Professional\Common7\IDE
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```
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3. Manually register the DLL by typing "regsvr32 msdia<VERSION>.dll" (e.g. "regsvr32 msdia140.dll" for Visual Studio 2019)
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4. Build the MSVC Project that you want with **full** debug symbols. By default in VS 2019/2017 it is set to
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use `/debug:fast`, we need `/debug:full`. This setting is located in Visual Studio project settings at `Linker > Debugging > Generate Debug Info`.
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* To change this in UE projects you will need set the Unreal Build Tool flag called `bUseFastPDBLinking`.
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Currently (4.24) the default value is to be turned off, which is what you want for using Cruncher.
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5. Open up Cruncher in Visual Studio
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6. Right click on the C# Project and select "Properties"
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7. Go to "Debug" and Select `Enable native code debugging` at the bottom.
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* Make sure you have "All Configurations" selected here to ensure you have it in both Release and Debug
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8. Create an `x86` build configuration by clicking the Solution Platforms dropdown and selecting `Configuration Manager...`
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then clicking on the `Active Solution Platform` and creating a new `x86` setting.
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* This has to be x86 due to the `msdia140` DLL, if you don't do this you may get unresolved symbols in Release modes.
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