Thanks On Mon, Jan 10, 2011 at 10:16 PM, Rajat Sharma <[email protected]> wrote:
> Hi, > > yes you are missing a very vital thing and that is EXPORT_SYMBOL. > Loadable Kernel modules are not part of kernel image and can not just > use any symbol of kernel, They can use only exported symbols either > exported through EXPORT_SYMBOL or EXPORT_SYMBOL_GPL. GPL version has > limitation that your module license should be GPL too and you have to > make it open source. > > Anyways you can always write a similar function in your module: > > task_lock(tsk); > strncpy(buf, tsk->comm, sizeof(tsk->comm)); > task_unlock(tsk); > > Note that task_lock is an static inline function in sched.h so you can > safely use that. > > Rajat > > On Tue, Jan 11, 2011 at 11:32 AM, Hanumant Singh <[email protected]> > wrote: > > Hi > > I am trying to write a simple module that sort of emulates the ps > > command. I am trying to get the comm string for the task, using > > get_task_comm, but the make command keeps telling me that the symbol > > get_task_comm is not defined. I have included linux/sched.h. This is the > > header file, which I believe has the prototype definition for the > function. > > Am I missing something? > > Thanks > > Hanumant > > _______________________________________________ > > Kernelnewbies mailing list > > [email protected] > > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies > > > > >
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