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01-18-2008, 06:19 AM
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 embedded linux newbie:how to build kernel for debug Hi, I am wondering how to debug the kernel and its first step must be building a debug-able kernel. I have a PowerPC development board and on the host I installed a powerpc GDB and some other tools to download the kernel imgae to the board. As my GDB does not support MMU, I think the 1st thing I should do is to disable MMU inside the kernel. I will check where is the code to control MMU, if it is on top of your heap, please point me for that. The build the kernel. And my questions are: 1) Can I use my current .config? My understanding is yes, but not quite sure. 2) What is the way to insert compile option, -g, into the Makefile? Is there any global env variable I can define? Or I must modify all the Makefile? 3) Should I still run "make clean dep bzImage" to build? Am I simplifying the problem? Thanks so much on your help.      |
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01-18-2008, 06:19 AM
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| Re: embedded linux newbie:how to build kernel for debug bill wrote: > **I*am*wondering*how*to*debug*the*kernel*and*its*f irst*step*must*be > building a debug-able kernel. .... before embarking on debugging the kernel, shouldnt you be more comfortable on HOW to build the kernel? http://www.tldp.org/HOWTO/Kernel-HOWTO/index.html http://www.tldp.org/HOWTO/KernelAnalysis-HOWTO.html http://www.google.com/linux Searched the web for <debug linux kernel> Results 1 - 10 of about 307,000. Search took 0.17 seconds -- << http://michaeljtobler.homelinux.com/ >> When more and more people are thrown out of work, unemployment results. - Calvin Coolidge |
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