-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello, I've recently begun to study kernel modules, and how they changed between kernel 2.4 and 2.6, with respect to symbol exporting options. In kernel 2.4, there was a /proc/ksyms file. This file, if I understand correctly, was a method to access the kernel's public symbol table. This table had all the public kernel's symbols (variables, functions..) and its associated global addresses, along with some othere usefull stuff, like a CRC value, and the module exporting every specific symbol. Fine until this point. In 2.6 kernels, /proc/ksyms disappeared. Many suggest that it was replaced by /proc/kallsyms file. BUT this file seems to be something completely different, and I haven't figured out in what way it is different. So, some questions to anyone that knows more on this: 1. Is my description of the functionality of /proc/ksyms in 2.4 kernels correct? 2. What exactly the /proc/kallsyms file contains? Why this file exists and how is it used? 3. Why was there this change in name and behavior of this file? 4. If one wants to find out what are the exported symbols from some module, how can he achive this? - From what I understand about /proc/kallsyms, it contains even the symbols that are not exported using EXPORT_SYMBOL(symbol_name). /proc/ksyms, contained every symbol appart from those that were not exported (considering the export all default policy in 2.4, in contrast with the export none policy of 2.6) Thanks & Regards, Giannis -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkkTEHwACgkQusj5FmsVhIeyswCgiD1vydAcwH6hE4Ld67Kp9TXx 9HcAnjCjmKgxk0Rgm01xH0iWaq8fCsFN =zGBd -----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
