The compiler is generally free to allocate general purpose registers in whatever order it chooses. Reasons for choosing one register before another usually include compiled instruction size (avoidance of REX prefixes, etc.) or usage conventions, but somehow haven't included security implications in the compiled bytecode. Some bytecode is more useful in polymorphic ROP sequences than others, so it seems prudent to try to avoid that bytecode when possible. from Brad (maintainer)
Documentation for the ports tree: ports(7), packages(7), mirroring-ports(7), library-specs(7), bsd.port.mk(5), bsd.port.arch.mk(5), port-modules(5). dpb(1), bulk(8) (manpages under ${PORTSDIR}/infrastructure/man) for bulk builds. See also the OpenBSD Porter's Handbook http://www.openbsd.org/faq/ports/ $OpenBSD: README,v 1.22 2016/10/17 16:26:52 danj Exp $
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Public git conversion mirror of OpenBSD's official cvs ports repository. Pull requests not accepted - send diffs to the ports@ mailing list.
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