clang - Issues building LLVM Kaleidoscope Chapter 4

Question

Overview

I've been working my way through the LLVM Kaleidoscope tutorial, and I am a bit stumped on getting Chapter 4 building.

I tried many different things to work this out (see below), but I am running out of things to try. Any help on this would be great.

---

My setup

• Installed llvm via brew (i.e., brew install llvm)
  • And added it to my path
• New directory with sub-folders titled as ChapterX (where X is the chapter I am on)
  • Chapters 1-3 have worked out of the box without any issues

What I have tried (Chapter 4)

note: I have made it a point to search the internet all along the way with no luck.

• Similar to the other chapters, I created a Chapter 4 folder, copied the sample code from the tutorial to a toy.cpp file, then ran the clang++ build command provided in the tutorial.
  • This failed with the error: toy.cpp:1:10: fatal error: '../include/KaleidoscopeJIT.h' file not found
• Since I was in a new directory without an include folder with KaleidoscopeJIT.h, I downloaded the llvm source code because this missing file was in there.
  • I then tried to use the chapter 4 directory in there (llvm-project/llvm/examples/Kaleidoscope/Chapter4)
  • This failed with the following new error: fatal error: 'llvm/ExecutionEngine/Orc/TargetProcessControl.h' file not found
  • This turned up missing because the homebrew llvm installation that was being used for the build didn't have this file available.
• I figured that maybe the brew install didn't include all the files for this tutorial for some reason, so I tried to build llvm from source code.
  • Uninstalled the brew llvm (brew uninsall llvm)
  • Built llvm from source code following these steps from the llvm site
  • Added the newly built llvm to my path
  • Tried to build chapter 4 again and received this error: Undefined symbols for architecture x86_64
• I have also tried installing older versions of LLVM via homebrew (e.g., v9) in case the tutorial was out of date. No luck here either.

question from:https://stackoverflow.com/questions/65922546/issues-building-llvm-kaleidoscope-chapter-4

Answer 1

Waitting for answers