"static_wrapper" imports in the FFI

[Iavor Diatchki]

Hi,
Optionally disabling executable heap blocks would be a separate patch.
 As far as I know, the only reason that the heap is executable is to
support the adjustor thunks used to implement "wrapper" imports.  The
"static_wrapper" patch provides a way to install Haskell callbacks in
many C libraries without the need for adjustor thunks.
-Iavor


On Tue, Mar 16, 2010 at 4:47 PM, Isaac Dupree
<ml at isaac.cedarswampstudios.org> wrote:
> On 03/16/10 19:38, Iavor Diatchki wrote:
>>
>> The fact that, at present, all GHC-compiled programs require an
>> executable data segment is a fairly significant problem.
>
>> ...
>
>> I thought of implementing the feature as a preprocessor but it did not
>> seem very easy to do because we need to parse Haskell types.
>
> Something doesn't add up for me here.  If *all* GHC-compiled programs
> require an executable data segment, then how could a preprocessor possibly
> remedy this problem? (and likewise, how does the static_wrapper patch do
> so...)
>
> -Isaac
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