diff mbox series

[v2,25/29] xtensa: Move EXCEPTION_TABLE to RO_DATA segment

Message ID 20191011000609.29728-26-keescook@chromium.org (mailing list archive)
State Not Applicable
Headers show
Series vmlinux.lds.h: Refactor EXCEPTION_TABLE and NOTES | expand

Commit Message

Kees Cook Oct. 11, 2019, 12:06 a.m. UTC 
Since the EXCEPTION_TABLE is read-only, collapse it into RO_DATA.

Signed-off-by: Kees Cook <keescook@chromium.org>
---
 arch/xtensa/kernel/vmlinux.lds.S | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Comments

Max Filippov Oct. 14, 2019, 7:41 a.m. UTC | #1 
On Thu, Oct 10, 2019 at 5:16 PM Kees Cook <keescook@chromium.org> wrote:
>
> Since the EXCEPTION_TABLE is read-only, collapse it into RO_DATA.
>
> Signed-off-by: Kees Cook <keescook@chromium.org>
> ---
>  arch/xtensa/kernel/vmlinux.lds.S | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)

Acked-by: Max Filippov <jcmvbkbc@gmail.com>
diff mbox series

Patch

diff --git a/arch/xtensa/kernel/vmlinux.lds.S b/arch/xtensa/kernel/vmlinux.lds.S
index bdbd7c4056c1..0043d5858f14 100644
--- a/arch/xtensa/kernel/vmlinux.lds.S
+++ b/arch/xtensa/kernel/vmlinux.lds.S
@@ -14,6 +14,8 @@ 
  * Joe Taylor <joe@tensilica.com, joetylr@yahoo.com>
  */
 
+#define RO_EXCEPTION_TABLE_ALIGN	16
+
 #include <asm-generic/vmlinux.lds.h>
 #include <asm/page.h>
 #include <asm/thread_info.h>
@@ -130,7 +132,6 @@  SECTIONS
 
   .fixup   : { *(.fixup) }
 
-  EXCEPTION_TABLE(16)
   /* Data section */
 
   _sdata = .;