Re: [PATCH 1/2] x86, stackvalidate: Compile-time stack frame pointer validation

[Peter Zijlstra]

On Mon, Apr 27, 2015 at 08:56:27AM -0500, Josh Poimboeuf wrote:
> Frame pointer based stack traces aren't always reliable.  One big reason
> is that most asm functions don't set up the frame pointer.
> 
> Fix that by enforcing that all asm functions honor CONFIG_FRAME_POINTER.
> This is done with a new stackvalidate host tool which is automatically
> run for every compiled .S file and which validates that every asm
> function does the proper frame pointer setup.

Would it make sense (maybe as an additional CONFIG_*_DEBUG thing) to
also process the output of GCC with this tool? To both double check GCC
and to give the tool more input?
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/