Hi :) On Sun, Oct 23, 2011 at 23:29, jiangtao.jit <jiangtao.jit@gmail.com> wrote:
Is there a tool which can generate a small and simple source tree after config? not pre-processor just generate a small source tree contains the files and dirs which really will be compiled and no macros like CONFIG_SMP etc. according to the configuration
or some other way to understand the architecture of the final working source tree?
I feel the same way too, even 'til now :) The way I do it is maybe counter intuitive for you. I compile the kernel image with frame pointer enabled and debug info (check kernel hacking section in "make config" during kernel compilation). Then, together with a disk image, I run this kernel in Qemu virtual machine. While running, I hook gdb to this Qemu instance. Finally, I put breakpoints, watchpoints, check backtraces etc I needed to understand the flow. Maybe that'll work for you too. -- regards, Mulyadi Santosa Freelance Linux trainer and consultant blog: the-hydra.blogspot.com training: mulyaditraining.blogspot.com