[PATCH] arm64: ftrace: function_graph: dump real return addr in call trace

Steven Rostedt rostedt at goodmis.org
Thu Oct 15 07:18:12 PDT 2015

On Thu, 15 Oct 2015 13:51:33 +0100
Will Deacon <will.deacon at arm.com> wrote:

> Is this the same old problem caused by e306dfd06fcb ("ARM64: unwind: Fix
> PC calculation")? I've said previously that I'm happy to revert that if
> we're the only architecture with this behaviour, but Akashi resisted
> because there are other issues with ftrace that he was hoping to address
> and they would resolve this too.

Just a reference, but this patch is pretty much exactly what x86
currently has. I wonder if I should make that function generic for all
archs to use.

If you accept this patch, I can look at what archs do and pull out the
common code and place it into the core code and have the archs call
that instead.

-- Steve

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