Re: M68k backend has landed in LLVM - NetBSD support

[John Paul Adrian Glaubitz <glaubitz%physik.fu-berlin.de@localhost>]

Hi Chris!

On 11/5/21 19:52, Chris Hanson wrote:
> One thing I wonder is whether LLVM/clang can actually be built and run on NetBSD/m68k:
> NetBSD's VM on m68k only uses a single root page for the page tables, so with 4KB pages
> you have a hard VM ceiling of only a couple hundred megabytes, and with 8KB pages you're
> still under a gigabyte.

FWIW, there is one big blocker at the moment for using LLVM natively on Linux/m68k which is
that the natural alignment of 16 bits of m68k on Linux is incompatible with LLVM [1].

This is something we haven't been able to resolve yet, so if anyone from the NetBSD side has
a clever idea, that would be great.

Adrian

> [1] https://github.com/M680x0/M680x0-mono-repo/issues/10

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