# 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>>.

#### 3.4.2. GDB module_init

TODO find a more convenient method. We have working methods, but they are not ideal.

This is not very easy, since by the time the module finishes loading, and `lx-symbols` can work properly, `module_init` has already finished running!

Possibly asked at:

- https://stackoverflow.com/questions/37059320/debug-a-kernel-module-being-loaded

- https://stackoverflow.com/questions/11888412/debug-the-init-module-call-of-a-linux-kernel-module

- GDB module_init step into it

- GDB module_init calculate entry address

- GDB module_init break at the end of sys_init_module

- GDB module_init add trap instruction