[patch] ARM FreeBSD fix bootstrap

[Andreas Tobler]

Hi all,

the commit for PR68617 broke boostrap on armv6*-*-freebsd*.

We still have unaligned_access = 0 on armv6 here on FreeBSD.

The commit from the above PR overrides my SUBTARGET_OVERRIDE_OPTIONS I 
called in arm_option_override. And it sets the unaligned_access to 1.

The attached patch fixes this, bootstrap ongoing but passed the breaking 
stage where genmddeps bus errored.

Is this patch ok for trunk once bootstrap completes?

TIA,
Andreas

2015-12-22  Andreas Tobler  <andreast@gcc.gnu.org>

	* config/arm/freebsd.h (SUBTARGET_OVERRIDE_OPTIONS): Adjust to
	check unaligned_access on the gcc_options set.
	* config/arm/arm.c (arm_option_override): Move
	SUBTARGET_OVERRIDE_OPTIONS from here to
	(arm_option_override_internal).

-------------- next part --------------
Index: config/arm/freebsd.h
===================================================================
--- config/arm/freebsd.h	(revision 231903)
+++ config/arm/freebsd.h	(working copy)
@@ -122,8 +122,8 @@
 
 #define SUBTARGET_OVERRIDE_OPTIONS		\
 do {						\
-    if (unaligned_access)			\
-	unaligned_access = 0;			\
+    if (opts->x_unaligned_access)		\
+	opts->x_unaligned_access = 0;		\
 } while (0)
 
 #undef MAX_SYNC_LIBFUNC_SIZE
Index: config/arm/arm.c
===================================================================
--- config/arm/arm.c	(revision 231903)
+++ config/arm/arm.c	(working copy)
@@ -2954,6 +2954,10 @@
   /* Thumb2 inline assembly code should always use unified syntax.
      This will apply to ARM and Thumb1 eventually.  */
   opts->x_inline_asm_unified = TARGET_THUMB2_P (opts->x_target_flags);
+
+#ifdef SUBTARGET_OVERRIDE_OPTIONS
+  SUBTARGET_OVERRIDE_OPTIONS;
+#endif
 }
 
 /* Fix up any incompatible options that the user has specified.  */
@@ -2976,10 +2980,6 @@
   if (global_options_set.x_arm_tune_option)
     arm_selected_tune = &all_cores[(int) arm_tune_option];
 
-#ifdef SUBTARGET_OVERRIDE_OPTIONS
-  SUBTARGET_OVERRIDE_OPTIONS;
-#endif
-
   if (arm_selected_arch)
     {
       if (arm_selected_cpu)