[PATCH v15 06/10] arm64: Treat all entry code as non-kprobe-able

On 07/15/2016 12:47 PM, Catalin Marinas wrote:

On Fri, Jul 08, 2016 at 12:35:50PM -0400, David Long wrote:

quoted

--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S

@@ -243,6 +243,7 @@ tsk	.req	x28		// current thread_info
   * Exception vectors.
   */

+	.pushsection ".entry.text", "ax"
  	.align	11
  ENTRY(vectors)
  	ventry	el1_sync_invalid		// Synchronous EL1t

@@ -781,3 +782,5 @@ ENTRY(sys_rt_sigreturn_wrapper)
  	mov	x0, sp
  	b	sys_rt_sigreturn
  ENDPROC(sys_rt_sigreturn_wrapper)
+
+	.popsection

Does the above sigreturn wrapper need to be included in the .entry.text
section?

Apparently not. It wouldn't make sense for that to be in entry.text when 
sys_rt_sigreturn() isn't. I'll put that in the list of changes.

Thanks,
-dl