Re: [PATCH] perf machine: Search for modules in %s/lib/modules/%s

[Namhyung Kim]

Hi Richard,

On Thu, 10 Apr 2014 12:52:59 -0400, Richard Yao wrote:
> Modules installed outside of the kernel's build system should go into
> "%s/lib/modules/%s/extra", but at present, perf will only look at them
> when they are in "%s/lib/modules/%s/kernel". Lets encourage good
> citizenship by relaxing this requirement to "%s/lib/modules/%s". This
> way open source modules that are out-of-tree have no incentive to start
> populating a directory reserved for in-kernle modules and I can stop hex
> editing my system's perf binary when profiling OSS out-of-tree modules.

But it'll make the perf traverses all the source and build directories
too, right?  I don't think it's a right thing to do.

Maybe we can also change stat() in map_groups__set_modules_path_dir() to
lstat() so that it cannot go to unwanted directories in that case.  Or
else, just checking "kernel" and "extra" directories will work.

Thanks,
Namhyung
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