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Re: kern/53666: tcpdump for i386 does not work with COMPAT_NETBSD32 on amd64

On Fri, 12 Oct 2018, Rin Okuyama wrote:

On 2018/10/12 15:04, matthew green wrote:
i also notice that BIOCGRTIMEOUT needs handling too.

Oops, we also need BIOC[GS]ORTIMEOUT when COMPAT_50:

Is it OK to have #ifdef COMPAT_50 (or equivalently,
#ifdef BIOC[GS]ORTIMEOUT) in netbsd32_ioctl.c?

Oh, joy!  Here comes another conflict with the pgoyette-compat

But YES, for now it would be acceptable to have a #ifdef COMPAT_50
block.  I will extract the conditional code and move it into
compat/netbsd32/netbsd32_compat_50.c and provide an appropriate

(Actually, this prompted me to look at the existing code on my
branch, and it seems I've still got some clean-up work to do here
for compat32_50_rnd_ioctl() - the "hook" needs to use the new
MP-safe mechanism to prevent the module code from being unloaded
while the code is executing!)

Anyway, I would like to decide the way before proceeding further.

(1) add unused "u_long cmd" argument to all netbsd32_{to,from}_foo()
functions in netbsd32_conv.h, and move netbsd32_{to,from}_foo() in
netbsd32_ioctl.c to netbsd32_conv.h


(2) leave preprocessor mess as is


(3) other

Paul, how do you think?

Neither 1 nor 2 "feels right" to me.  But I don't have any better
choice to offer.

| Paul Goyette     | PGP Key fingerprint:     | E-mail addresses:          |
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