[committed] Unbreak asan on ppc (PR sanitizer/59122)

[Jakub Jelinek]

Hi!

I've committed following fix to unbreak asan on -fsection-anchors targets.
If anyone has better ideas how to represent for RTL artificial label
we emit from final.c at the beginning of current function, I'd appreciate
it.

2013-11-14  Jakub Jelinek  <ja...@redhat.com>

        PR sanitizer/59122
        * asan.c (asan_emit_stack_protection): Ensure -fsection-anchors
        isn't confused by the artificial decl.

--- gcc/asan.c  (revision 204800)
+++ gcc/asan.c  (working copy)
@@ -1002,6 +1002,9 @@ asan_emit_stack_protection (rtx base, HO
   TREE_STATIC (decl) = 1;
   TREE_PUBLIC (decl) = 0;
   TREE_USED (decl) = 1;
+  DECL_INITIAL (decl) = decl;
+  TREE_ASM_WRITTEN (decl) = 1;
+  TREE_ASM_WRITTEN (id) = 1;
   emit_move_insn (mem, expand_normal (build_fold_addr_expr (decl)));
   shadow_base = expand_binop (Pmode, lshr_optab, base,
                              GEN_INT (ASAN_SHADOW_SHIFT),

        Jakub