On Thu, Jul 16, 2015 at 10:33:29AM +0100, Michel Thierry wrote:
> + if (!(entry->flags & EXEC_OBJECT_SUPPORTS_48B_ADDRESS) &&
> + (vma->node.start + vma->node.size) >= (1ULL << 32))
> + return true;
gcc completely screwed this up here and used 0 for 1ULL<<32.
Note that we can allow state + size == 4G (since the end is exclusive),
so I went with
if ((entry->flags & EXEC_OBJECT_SUPPORTS_48B_ADDRESS) == 0 &&
(vma->node.start + vma->node.size - 1) >> 32)
return true;
instead.
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
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