BPF Proposed To Become A First-Class Backend In LLVM

[phoronix]

Phoronix: BFP Proposed To Become A First-Class Backend In LLVM

When it comes to taking advantage of the Linux kernel's (e)BPF in-kernel virtual machine, LLVM has served as the compiler of choice for targeting this virtual machine..

http://www.phoronix.com/scan.php?page=news_item&px=BPF-LLVM-Backend-First-Class

[BenjiWiebe]

Please...correct that typo in the title. I almost ignored this post (even though I am interested in BPF) because "BFP" didn't sound like anything that I was interested in.

[Luke_Wolf]

Could someone please explain how the LLVM backend fits into all of this?

[derekdai]

Writing an LLVM Backend (http://llvm.org/docs/WritingAnLLVMBackend.html):
This document describes techniques for writing compiler backends that convert the LLVM Intermediate Representation (IR) to code for a specified machine or other languages. Code intended for a specific machine can take the form of either assembly code or binary code (usable for a JIT compiler).

[newwen]

Could someone please explain how the LLVM backend fits into all of this?

there's a diagram that helps you to understand how LLVM fits here

http://www.phoronix.com/scan.php?page=news_item&px=BPF-Understanding-Kernel-VM