On Sat, May 14, 2016 at 4:16 PM, Youcun Liu <liuyoucun1993@xxxxxxxxx> wrote:
Dear all,I am now working on building my own linux kernel and I want to add a new attribute into the process control block. Then I will feed some data to the new attribute from a user application. Finally I want to use the date to improve the some original kernel algorithm(e.g process schduling).I tried to initialize the new attribute directly in the 'task_struct', obviously, it failed. So I decide to initialize the new attribute at the very beginning, but I do not know how. Besides, I have trouble in finding out which function can help me feed data to the new attribute.Could you please give me some suggestions and help? Thanks a lot.Best regards,Youcun Liu
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Hi...
How did you exactly initialize PCB or task_struct? Could you elaborate?
IIRC, sometimes variables under task_struct is accessed using offset, so if you insert new variable in the middle, there is a chance you messed it up. There might be other constraints, though. CMIIW
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regards,
Mulyadi Santosa
Freelance Linux trainer and consultant
blog: the-hydra.blogspot.com
training: mulyaditraining.blogspot.com
Mulyadi Santosa
Freelance Linux trainer and consultant
blog: the-hydra.blogspot.com
training: mulyaditraining.blogspot.com
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