# Linux Kernel Module Cheat
The perfect emulation setup to study and develop the <<linux-kernel>> v5.9.2, kernel modules, <<qemu-buildroot-setup,QEMU>>, <<gem5-buildroot-setup,gem5>> and x86_64, ARMv7 and ARMv8 <<userland-assembly,userland>> and <<baremetal-setup,baremetal>> assembly, <<c,ANSI C>>, <<cpp,C++>> and <<posix,POSIX>>. <<gdb>> and <<kgdb>> just work. Powered by <<about-the-qemu-buildroot-setup,Buildroot>> and <<about-the-baremetal-setup,crosstool-NG>>. Highly automated. Thoroughly documented. Automated <<test-this-repo,tests>>.

## 26. Buildroot

- Introduction to Buildroot

- Custom Buildroot configs

- Find Buildroot options with make menuconfig

- Change user

- Add new files to the Buildroot image

- Remove Buildroot packages

- BR2_TARGET_ROOTFS_EXT2_SIZE

- Buildroot rebuild is slow when the root filesystem is large

- Report upstream bugs

- libc choice

- Buildroot hello world

- Update the Buildroot toolchain

- Buildroot vanilla kernel