Re: Avoid potential crashes with --gc-sections and low addresses

[Jonathan Larmour <jifl@eCosCentric.com>]

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Jonathan Larmour wrote:
> Hi,
> 
> The attached patch deals with a problem that occurs with some embedded
> targets when the linker garbage collection feature of GNU ld
> (--gc-sections) is used.

<ahem> and the patch is now attached.

Jifl
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--- gdb/dwarf2-frame.c~	2008-05-04 00:24:17.000000000 +0100
+++ gdb/dwarf2-frame.c	2008-06-20 17:06:04.000000000 +0100
@@ -1795,7 +1795,8 @@ decode_frame_entry_1 (struct comp_unit *
 
       fde->eh_frame_p = eh_frame_p;
 
-      add_fde (unit, fde);
+      if (fde->initial_location)
+          add_fde (unit, fde);
     }
 
   return end;