Re: [PATCH] Avoid depending on destructor order

[Thomas Neumann <neumann@in.tum.de>]

> This patch broke bootstrap on AIX and probably other targets.
> 
> #ifdef ATOMIC_FDE_FAST_PATH
> #include "unwind-dw2-btree.h"
> 
> static struct btree registered_frames;
> static bool in_shutdown;
> ...
> #else
> 
> in_shutdown only is defined for ATOMIC_FDE_FAST_PATH but used in code / 
> asserts not protected by that macro.
> 
>    gcc_assert (in_shutdown || ob);
>    return (void *) ob;
> }

I am sorry for that, I did not consider that my test machines all use 
the fast path.

I think the problem can be fixed by the trivial patch below, I will 
commit that after I have tested builds both with and without fast path.

Best

Thomas


diff --git a/libgcc/unwind-dw2-fde.c b/libgcc/unwind-dw2-fde.c
index d237179f4ea..d6e347c5481 100644
--- a/libgcc/unwind-dw2-fde.c
+++ b/libgcc/unwind-dw2-fde.c
@@ -67,6 +67,8 @@ static void
  init_object (struct object *ob);

  #else
+/* Without fast path frame lookup must always succeed */
+static const bool in_shutdown = false;

  /* The unseen_objects list contains objects that have been registered
     but not yet categorized in any way.  The seen_objects list has had