[fpc-pascal] Stack alignmennt in call from C++ to FPC

Jonas Maebe jonas.maebe at elis.ugent.be
Wed Jun 5 22:44:56 CEST 2013

On 05 Jun 2013, at 15:04, Josue Andrade Gomes wrote:

> Some references (eg (2)) claim that MSVC aligns the stack at 4-byte
> boundaries while GCC aligns
> at 16-byte boundaries. I have found no confirmation on those claims.

Stack alignment is not a compiler property, but a platform property. The stack alignment on Win32 is 4 bytes. On Linux/i386 it used to 4 bytes, but there has been an unofficial switch to 16 bytes (which, in all fairness, was pushed by gcc for SSE/performance reasons).

I don't immediately see what the problem is in your case. Usually it's a mismatch of calling conventions, but that seems to be fine in the code you posted.


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