Le Tue, 29 Jan 2008 12:50:15 +0530, Onkar <onkar.n.m@xxxxxxxxx> a écrit : > What does Module.symvers contain and why is it useful ? This file is generated by the kernel during the compilation. It contains the versioning informations for each symbol of the kernel that is exported (i.e, usable by a module). It is used when compiling modules. The compilation process of a module stores the versioning informations of all symbols used by the module inside the resulting .ko file. Then, when you load the module, the kernel compares them with the current versioning informations of the symbol. If you correctly compiled your module against the kernel then everything will be ok. Otherwise, when trying to load the module, the kernel complain that you did something wrong: trying to load the module which has been compiled for an other version of the kernel. Look at http://lxr.free-electrons.com/source/Documentation/kbuild/modules.txt#442 for more informations. Sincerly, Thomas -- Thomas Petazzoni, Free Electrons Free Embedded Linux Training Materials on http://free-electrons.com/training (More than 1500 pages!)
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