-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Thu, Jul 19, 2007 at 12:05:43AM -0700, kanishk rastogi wrote: Please use proper quoting so it becomes clear who said what. Get Outlook-QuoteFix to fix the quoting: http://home.in.tum.de/~jain/software/outlook-quotefix/ > From: Andi <a.platschek@xxxxxxxxxx> >> kanishk rastogi schrieb: >> > hi all, >> > When we export a symbol using EXPORT_SYMBOL, We can use it to be called >> > by other modules when we insert this module ....... >> > I wanted to know when does this symbol gets added to the kernel symbol >> > table ... >> >> It's added when the module is loaded with insmod and removed when the >> module is removed. >> But you don't have to use EXPORT_SYMBOL. if you don't care about it, >> every symbol, that is not static will be exportet. That's no longer true, you explicitly need to use EXPORT_SYMBOL to export a symbol. IIRC this was done to avoid namespace polution and to force people to think about what symbols to export (i.e.: think about the exported interface). > Does this means EXPORT_SYMBOL() and declaring a function as > non-static is same .... No, see above. >> > Or what happens when we insert the module so that this symbol is >> > accessible .... >> >> If you want to check which symbols of your module are exported, check >> /proc/kallsyms. > > But i wanted to see what special treament does these symbols get once > we have "EXPORT_SYMBOL()ed " them > Vs.... > ones which are not exported and non static ..... The ones not having an EXPORT_SYMBOL() are not exported, don't show up in /proc/kallsyms, and can't be used by other modules. Erik - -- They're all fools. Don't worry. Darwin may be slow, but he'll eventually get them. -- Matthew Lammers in alt.sysadmin.recovery -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFGnxnM/PlVHJtIto0RAqh6AJ9akitCt5/Q6Jh1mKuJj3jT+bM4aACfRNy8 dpj5CkMBV7p8+ErU9GXfa2I= =Qd8T -----END PGP SIGNATURE----- -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
