Re: [tor-talk] Building Tor Browser on ARM

[Jeremy Rand <jeremyrand@xxxxxxxxxx>]

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J.S. Evans:
> Hi all,
> 
> I'm attempting to build Tor Browser on an ARM64 machine. However, the install tool requires that you download some x64 packages which of course breaks the build. The following has details where it is breaking: https://pastebin.com/11EFY1sQ Any suggestions for a workaround?

Hi Jason,

As Nicolas mentioned, I'm working on getting Tor Browser's rbm build
system to build for non-x86 Linux targets.  My first target is 32-bit
ARM, which will probably be followed by ppc64le (mainly because those
are the two targets for which I actually have hardware to test with),
but I do intend to do 64-bit ARM and ppc64be after that.

Longer-term, I intend to try to support non-x86 host architectures as
well.  In theory there's no reason why building on multiple host arches
wouldn't yield the same hashes for the same targets (any diff would be
an indication of a compiler or build system bug), so this would improve
Tor's reproducible build situation a lot since the x86 architecture
would no longer be trusted in terms of compile-time backdoors.  I'm
designing my current patches with this longer-term goal in mind.

I should note, however, that my efforts on this are basically a
weekends-only hobbyist project, so progress is of varying speed based on
my varying free time during weekends.

I'm happy to answer any questions you might have on this list, if you're
concerned that asking questions in the Trac thread would harm the
signal-to-noise ratio there.

Cheers,
- -- 
- -Jeremy Rand
Lead Application Engineer at Namecoin
Mobile email: jeremyrandmobile@xxxxxxxxxx
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