Project history

• 2009
  • LLVM META bug filed
• 2010
  • LLVM cfe-dev post about successful build+boot
• 2011
  • LLL Project
• 2013 Linux kernel and user space for Hexagon DSP with LLVM - A. Dasgupta & P. Potoplyak, Qualcomm
• 2012-2016
  • LLVMLinux Project
    • commits
    • web archive
    • mailing list archive
    • llvmdev mailing list announcement
• 2016
  • LLVMLinux post asking about project status
  • Android Userspace 100% Clang (Google Pixel)
  • Pixel kernel was working at this time, but feature was punted to Pixel 2
• 2017
  • x86_64 kernel built with Clang and linked with LLD
  • Google Pixel 2 ships first Clang built kernel
  • Clang patch stacks for LTS kernels (v4.4 and v4.9) and status update
  • Clang patch stacks for LTS kernels and status update
• 2018
  • ChromeOS starts shipping Clang built kernels
    • start
    • moved to default
    • Google Pixel 3 enables kernel LTO & CFI
• 2019 LLD, llvm-ar enabled
• 2020
  • LLD becomes default kernel linker in CrOS 1 2
• 2021
  • Clang integrated assembler working for most architectures.
  • Google starts using Clang built kernels in production.
  • Chimera Linux is created, using clang built kernels
• 2022
  • Facebook/Meta start using Clang built kernels in production. 0