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From: Khem Raj <raj.khem@gmail.com>
Date: Fri, 21 Oct 2022 10:16:01 -0700
Message-ID: <CAMKF1srBUW4GsRorupnU_wYXR2U1QwUz9LCT+beOOA_Kx=F9=g@mail.gmail.com>
Subject: Re: [OE-core] [PATCH] rust: Disable 64bit atomics on crossbeam on riscv32
To: Alexander Kanavin <alex.kanavin@gmail.com>
Cc: openembedded-core@lists.openembedded.org
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On Fri, Oct 21, 2022 at 10:12 AM Alexander Kanavin
<alex.kanavin@gmail.com> wrote:
>
> On Fri, 21 Oct 2022 at 19:00, Khem Raj <raj.khem@gmail.com> wrote:
> > > On Fri, 21 Oct 2022 at 18:07, Khem Raj <raj.khem@gmail.com> wrote:
> > > > Looking briefly over the code, my educated guess is that target names
> > > > are still not matching
> > > > rusts tuple uses riscv32gc but we use riscv32
> > >
> > > I believe we have a remapping in meta/lib/oe/rust.py, can you check if
> > > that works?
> >
> > This is mapping host uname, it wont work.
>
> No, it's mapping the targets too. E.g. in rust-common.bbclass:
>
> # Responsible for taking Yocto triples and converting it to Rust triples
> def rust_base_triple(d, thing):
>     '''
>     Mangle bitbake's *_SYS into something that rust might support (see
>     rust/mk/cfg/* for a list)
>
>     Note that os is assumed to be some linux form
>     '''
>
>     # The llvm-target for armv7 is armv7-unknown-linux-gnueabihf
>     if d.getVar('{}_ARCH'.format(thing)) == d.getVar('TARGET_ARCH')
> and target_is_armv7(d):
>         arch = "armv7"
>     else:
>         arch = oe.rust.arch_to_rust_arch(d.getVar('{}_ARCH'.format(thing)))
>

anyway, the builds failed at exactly the same point so as I sensed it
does not work.

> Alex