[RFC PATCH v6 3/3] arm64: Create a list of SYM_CODE functions, check return PC against list

[Mark Brown]

On Thu, Jul 29, 2021 at 04:48:04PM +0100, Mark Rutland wrote:

> For clarity, let's take your bullet-point list above as a list of
> examples, and make that:

> 	/*
> 	 * As SYM_CODE functions don't follow the usual calling
> 	 * conventions, we assume by default that any SYM_CODE function
> 	 * cannot be unwound reliably.
> 	 *
> 	 * Note that this includes:
> 	 *
> 	 * - Exception handlers and entry assembly
> 	 * - Trampoline assembly (e.g., ftrace, kprobes)
> 	 * - Hypervisor-related assembly
> 	 * - Hibernation-related assembly
> 	 * - CPU start-stop, suspend-resume assembly
> 	 * - Kernel relocation assembly
> 	 */

This looks good to me too.
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