Re: [OE-core] [PATCH] rust: Disable 64bit atomics on crossbeam on riscv32

[Alexander Kanavin <alex.kanavin@gmail.com>]

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)))

Alex