On Sat, Oct 6, 2012 at 4:06 PM, David Higgs <hig...@gmail.com> wrote: > It seems the sigprocmask syscall takes different arguments than the > libc stub for sigprocmask(2). Though the differences are easily > understood by browsing source, there don't appear to be any man pages > describing the syscall interface, and wonder if this is an intentional > or accidental oversight.
The only places this should possibly be documented, IMO, are kdump(1) and syscall(2), and in the latter it should be at most a warning and _not_ specific info about the affected calls. The syscall ABI is only supported for the calls that the system libraries actually use, and even there the "guarantee" is only for a couple releases. For example, the sigreturn() in the OpenBSD 5.0 amd64 libc will not work against a 5.2 kernel. Philip Guenther
