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Date: Tue, 27 Mar 2018 14:24:07 -0500
From: Seebs <seebs@seebs.net>
To: Enrico Scholz <enrico.scholz@sigma-chemnitz.de>
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On Tue, 27 Mar 2018 21:20:24 +0200
Enrico Scholz <enrico.scholz@sigma-chemnitz.de> wrote:

> SYS_readahead is one of a few syscalls which pass 64 bit arguments on
> 32 bit architectures.  Without the manual splitting, the ABI will
> cause the compiler to insert a dummy argument so that registers are
> aligned for 64 bit values.

I'm now even more confused. This sounds like the compiler *would*
insert the argument without being told to, because the ABI "will cause"
that, in which case the manual splitting wouldn't be necessary?

-s