Reading linux boot args

[manty kuma]

How to read the reason for Kernel reboot?
Currently i am using __setup("warmboot=",myfunc)
But it looks like i can use this on only one time. If i do this for two
times in two drivers only one guy is getting called.

Is there any way i could read the reason for reboot.
I want to read it so that i can get the reason that is stored.
like 0xABADBABE is watchdog 0xCODEDEAD is panic. Etc..

Please suggest an alternative approach.

Thanks,
manty
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