arm-eabi toolchain needs GNU-stack note for security purpose.
Will Keep this patch in google branches.

OK for google/main?
I would like to port this patch to google/gcc-4_6, google/gcc-4_6-mobile,
google/gcc-4_6_2-moible.

2012-02-14  Jing Yu  <jin...@google.com>
        Google ref 42402-p2
        * config/arm/arm.h: Emit GNU-stack note for all arm targets by
        default.

Index: gcc/config/arm/arm.h
===================================================================
--- gcc/config/arm/arm.h        (revision 184221)
+++ gcc/config/arm/arm.h        (working copy)
@@ -2157,9 +2157,9 @@
    : arm_gen_return_addr_mask ())


-/* Do not emit .note.GNU-stack by default.  */
+/* Do emit .note.GNU-stack by default.  */
 #ifndef NEED_INDICATE_EXEC_STACK
-#define NEED_INDICATE_EXEC_STACK       0
+#define NEED_INDICATE_EXEC_STACK       1
 #endif

 /* The maximum number of parallel loads or stores we support in an ldm/stm

--
This patch is available for review at http://codereview.appspot.com/5649090

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