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System V Application Binary Interface 0.99.5
- From: Andrew Haley <aph at redhat dot com>
- To: "H.J. Lu" <hongjiu dot lu at intel dot com>
- Cc: Jan Hubicka <jh at suse dot cz>, Andreas Jaeger <aj at suse dot de>, Mark Mitchell <mark at codesourcery dot com>, "gcc at gcc dot gnu dot org" <gcc at gcc dot gnu dot org>
- Date: Wed, 30 Jan 2013 11:22:26 +0000
- Subject: System V Application Binary Interface 0.99.5
[Resending, this time CC:'d to GCC list.]
I'm looking at Section 3.2.3, Parameter Passing.
http://artfiles.org/kernel.org/pub/scm/devel/binutils/hjl/x86-64-psabi.git/
I still cannot tell whether parameters should or should not be sign- or
zero-extended when they are moved into registers at a call. I'm guessing
not.
Which is it? This is important for interworking.
Thanks,
Andrew.