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

[David Long]

On 07/15/2016 12:47 PM, Catalin Marinas wrote:
On Fri, Jul 08, 2016 at 12:35:50PM -0400, David Long wrote:
--- 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