On Tue, Apr 27, 2010 at 11:58 PM, Joel Fernandes <[email protected]>wrote:
> Hey Venkatram, > > On Wed, Apr 28, 2010 at 11:33 AM, Venkatram Tummala < > [email protected]> wrote: >> >> to find these addresses by "p modules", the module has to be already >> loaded.....right? So, the initialization function of the module must have >> been already executed....right? So, the question is how can we step through >> the initialization function of the module..? "p modules" won't help >> us..probably looking at /sys is a faster way to find module segment >> addresses, or am I missing something here in "p modules"?? >> >> > Why don't you try setting breakpoints in kernel (kernel/module.c) after the > module has been loaded but before your modules' init function is called? > > From kernel/module.c , in SYSCALL_DEFINE3(init_module..): > the line load_module(...) loads your module into the kernel, and the line > do_one_initcall(mod->init); calls the init functions. > So I think if you set a break point in between these lines, you should be > able to get the address of text section etc just in time before the init > functions is called, using p modules or something. > Hey Joel, Yup, that is exactly the trick mentioned by Mulyadi in the previous post. Will try that & there is no reason why this won't work. This will definitely solve the problem. Thanks Everybody, Venkatram > > -Joel > >
