what is system.map file?



i want to know when i compile a kernel then System.map file is created but for what purpose it is used?
what are the addresses and are they being used when that kernel image is boot?

pancoderAsked:
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da99rmdConnect With a Mentor Commented:
Hi pancoder,
here is some info on the system.map
http://www.dirac.org/linux/system.map/
/Rob
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manish_regmiCommented:
hi,
 System.map consists of list of symbols with their address. Those symbols are exported by kernel and are used by other kernel modules and drivers. So, symbol exported by one module can be used by another module.

It is actually produced by nm during kernel compilation. Thus the names out there is the name of the functions and variables with the linking address.

You have the same thing on /proc/ksyms

regards manish
 
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