[Bug 2590] Seccomp filter for missing architectures

[bugzilla-daemon at bugzilla.mindrot.org]

https://bugzilla.mindrot.org/show_bug.cgi?id=2590

--- Comment #7 from Darren Tucker <dtucker at zip.com.au> ---
(In reply to Joshua Kinard from comment #3)
> I believe there's a known/defined CHOST tuple to specify an N32

Debian seems to document "mips64-linux-gnuabin32":
https://wiki.debian.org/Multiarch/Tuples

(In reply to Joshua Kinard from comment #6)
[...]
> Per the MIPS N32 handbook, you can tell O32/N32 apart from N64 (full
> 64-bit) by checking the size of a pointer, which should be 8 bytes
> on N64.  But it'll be 4 bytes under both O32/N32, so this approach
> won't work either.

I know nothing about this other than what I've read in the last few
minutes, but isn't O32 for purely 32 bit machines?  ie isn't
config.guess is going to say "mips-"?  or can you run O32 userspace
even on a 64 bit kernel?

> Is it possible to have configure compile a test binary using the
> provided C compiler and flags, then check the file magic of the
> output binary?

It's possible but seems pretty icky.

I think the first thing to do is fix the case statement which will
allow you to at least specify the right thing via configure --target.

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