On Mon, Jun 25, 2007 at 05:47:42AM -0600, Matthew Wilcox wrote:

> Also, you might want to put something in the syscall file about signed
> vs unsigned arguments and how they behave with 32-on-64 systems.

Another fine can of worms.  On some architectures function arguments are
getting extended to full register size by the caller, on others it just
doesn't matter.  This can have very subtle effects.  MIPS belongs into the
first class which forces me to doublecheck each compat syscall entrypoint
for sign/unsigned extension issues.  Ick.

  Ralf
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