[Vm-beginners] aarch64 squeak-vm

[Eliot Miranda]

Hi Ken,

On Fri, Dec 7, 2018 at 9:24 AM <ken.dickey at whidbey.com> wrote:

>
> To recap,
>
> I was able to build the older Debian package (4.10.2.2614) and, with a
> simple addition to config.guess, the Squeak.Org vm (4.16.5-3765) under
> aarch64 Armbian Linux.   This withOUT 32 bit libs.
>
> I have started down the trail toward
> oscogvm/build.linux64x64/squeak.stack.spur.
>
> The build/mvm file has x86 flags ("TARGET_ARCH=-m64" "-msse2"), and I need
> to set a number of flags, based on email with Tim (Thanks!) to set
> __arm64__ and ARM64 and adjust sqUnixMain.c for aarch64.
>
> Given that I have not done C/Bash/Make for a couple of decades, any help
> in deciding where these flags are set and which of the 4736 gcc flags need
> to be set would be most welcome.  The "-march=native" flag certainly won't
> do for a cross-platform build.
>
> So the proximate bits I see are
>   [1] what flags should be set in mvm (cross-plartform)
>   [2] what flags set in config.guess
>   [3] what aarch specifics are needed in sqUnixMain.c (and possibly
> platform/unix/vm/include_ucontext,h)
>
> After that, of course, is squeak.cog.spur and relearning gdb, sigh.
>

ARM8 is a new ISA so at this point development will have to move to the
Simulator and write a back end in the CogAbstractInstruction framework. One
will also have to create a processor simulator plugin, e.g. GdbARM64Plugin,
to complement GdbARMPlugin, BochsX64Plugin et al.  And this level of
development is a lot of fun. See https://dl.acm.org/citation.cfm?id=3281295.


> Just muddling through,
> -KenD
>
>
> ----- Original Message -----
> From:
> "Eliot Miranda" <eliot.miranda at gmail.com>
>
> To:
> <Ken.Dickey at whidbey.com>
> Cc:
>
> Sent:
> Thu, 6 Dec 2018 06:27:34 -0800
> Subject:
> Re: [Vm-dev] [Vm-beginners] aarch64 squeak-vm
>
>
> Hi Ken,
>
> I just subscribed to the list. Could you send your message again,
> specifying what exactly you want help with (understanding what’s going on,
> how to find the set if predefined macros on your system, where to look for
> the relevant definitions, etc)? Then I’ll respond.
>
> Cheers
> _,,,^..^,,,_ (phone)
> Eliot
>
>

-- 
_,,,^..^,,,_
best, Eliot
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