Requirement

• build kernel using clang into binary successfully
• golang
• The related kernel module are enabled in Linux kernel configuration

Build Linux kernel into LLVM Bitcode

go run path/of/v5.12/KernelBitcode.go --help

1. Build Kernel with clang

make LLVM=1 -j16

2. Generate script to build kernel into LLVM Bitcode

go run path/of/v5.12/KernelBitcode.go

3. Get LLVM Bitcode

bash build.sh

built-in.bc is in each directory. All external modules are in the end of build.sh. Now you can perform analysis on those LLVM bitcode files.