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Re: [patch libffi]: Add thiscall-closure support for fixing regression PR/51500
On Tue, Jan 31, 2012 at 10:51 AM, Kai Tietz <ktietz70@googlemail.com> wrote:
> Ok, this variant keeps 16-byte alignment for thiscall-closure.
It doesn't. You have to account for the fact that caller pushed return
address to the stack, so %esp was already decreased by 4 behind your
back. To maintain alignment, you have to decrease %esp by $12, not by
$16.
Uros.