Messages in this thread | | | Date | Thu, 6 May 2021 15:43:52 +0100 | From | Mark Brown <> | Subject | Re: [RFC PATCH v3 4/4] arm64: Handle funtion graph tracer better in the unwinder |
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On Mon, May 03, 2021 at 12:36:15PM -0500, madvenka@linux.microsoft.com wrote: > From: "Madhavan T. Venkataraman" <madvenka@linux.microsoft.com> > > The Function Graph Tracer modifies the return address of a traced function > to a return trampoline (return_to_handler()) to gather tracing data on > function return. When the unwinder encounters return_to_handler(), it calls > ftrace_graph_get_ret_stack() to lookup the original return address in the > return address stack.
This makes sense to me, I'll need to re-review properly with the changes earlier on in the series but should be fine. [unhandled content-type:application/pgp-signature] | |