linux-kernel - Re: [RFC] perf probe: Fix offline module name missmatch issue

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Date:	Tue, 26 Apr 2016 11:19:16 +0900
From:	Masami Hiramatsu <mhiramat@...nel.org>
To:	Masami Hiramatsu <mhiramat@...nel.org>
Cc:	Ravi Bangoria <ravi.bangoria@...ux.vnet.ibm.com>,
	linux-kernel@...r.kernel.org, acme@...nel.org,
	peterz@...radead.org, mingo@...hat.com,
	alexander.shishkin@...ux.intel.com,
	masami.hiramatsu.pt@...achi.com, wangnan0@...wei.com,
	namhyung@...nel.org, srikar@...ux.vnet.ibm.com,
	naveen.n.rao@...ux.vnet.ibm.com
Subject: Re: [RFC] perf probe: Fix offline module name missmatch issue

On Tue, 26 Apr 2016 06:24:38 +0900
Masami Hiramatsu <mhiramat@...nel.org> wrote:
> > +/*
> > + * NOTE:
> > + * '.gnu.linkonce.this_module' section of kernel module elf directly
> > + * maps to 'struct module' from linux/module.h. This section contains
> > + * actual module name which will be used by kernel after loading it.
> > + * But, we cannot use 'struct module' here since linux/module.h is not
> > + * exposed to user-space. Offset of 'name' has remained same from long
> > + * time, so hardcoding it here.
> > + */

BTW, is there no way to get the module name avoiding to access
this "hidden" data structure?
This looks very tricky way...

Thanks,

-- 
Masami Hiramatsu <mhiramat@...nel.org>