Am 22.12.2011 17:04, schrieb Jonas Maebe:

On 22 Dec 2011, at 16:42, Sven Barth wrote:

While with OpenCV this issue might be solved by recompiling it (which
I'd yet need to look into, because I'm simply using the provided
binaries), what should be done about closed source code?

Closed source code should be compiled with a compiler that respects the
ABI by default. I guess most of it is compiled with Microsoft Visual
Studio, which does presumably does that. I don't think that any compiler
other than GCC can create code for Win32 that assumes a 16-byte aligned
stack.


My mysterious OpenCV problems are with the MSVC version of the libraries... with the GCC variant I don't even reach the point of displaying a OpenCV window ^^

Somehow this motivates me more to add a "stackalignment" modifier...

Then you would have to add this to all routines that may (directly or
indirectly) a routine from a broken library.

Wouldn't it be sufficient to align the stack when calling a routine from such a library? (sorry for sounding naive here, but the requirements for stack alignment still puzzle me a bit)

Regards,
Sven
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