[oi-dev] Rust in userland?

[Michal Nowak]

On 08/21/18 11:16 PM, Aurélien Larcher wrote:
> 
> 
> On Tue, Aug 21, 2018 at 11:10 PM, Michal Nowak <mnowak at startmail.com 
> <mailto:mnowak at startmail.com>> wrote:
> 
>     On 08/16/18 07:31 PM, Aurélien Larcher wrote:
> 
> 
> 
>         On Thu, Aug 16, 2018 at 7:18 PM, Aurélien Larcher
>         <aurelien.larcher at gmail.com <mailto:aurelien.larcher at gmail.com>
>         <mailto:aurelien.larcher at gmail.com
>         <mailto:aurelien.larcher at gmail.com>>> wrote:
> 
> 
> 
> 
> 
>         https://github.com/cgrzemba/oi-userland/tree/rust/components/developer/rust
>         <https://github.com/cgrzemba/oi-userland/tree/rust/components/developer/rust>
>                     
>         <https://github.com/cgrzemba/oi-userland/tree/rust/components/developer/rust
>         <https://github.com/cgrzemba/oi-userland/tree/rust/components/developer/rust>>
> 
> 
>                  I remember now updating my recipe to yours but I needed
>         some
>                  configuration tweaks to deal with a few issues:
>                  - /usr/bin/cc is default used as linker but it is
>         sunstudio 12.1
>                  so you need to override it,
>                  - AR should be specified,
>                  - this recipe assumes that GCC runtime libraries are in
>                  /usr/lib/$(MACH64) which is not true for us with GCC >= 6,
>                  - the linker should be specified for the target as it
>         is not
>                  passed from the global settings.
> 
>                  Also rustc will eat up to 3GB of RAM so the host should
>         have
>                  enough memory.
> 
> 
>              Just rebased my change over Carsten's branch:
> 
>         https://github.com/alarcher/oi-userland/tree/rust123
>         <https://github.com/alarcher/oi-userland/tree/rust123>
>              <https://github.com/alarcher/oi-userland/tree/rust123
>         <https://github.com/alarcher/oi-userland/tree/rust123>>
> 
> 
>         More work:
> 
>         helios> rustc hello.rs <http://hello.rs> <http://hello.rs>
>         error[E0463]: can't find crate for `std`
> 
>         error: aborting due to previous error
> 
>         helios> ls /usr/lib/amd64/rustlib/x86_64-sun-solaris/
>         analysis/ lib/
> 
>         but rust looks for libraries in /usr/lib/rustlib
> 
>         Symlinked like a piggy to check it and it is the problem...
> 
>         Also rustc does not put /usr/lib/amd64 in the search path so
>         executables are broken.
> 
> 
>     I build Aurélien's branch inside a zone, but it fails for me with:
> 
>     error: could not exec the linker `/usr/gcc/6/bin/gcc`: Not enough
>     space (os error 12)
> 
>     For full log, see
>     https://paste.ec/paste/JxbabBm7#Kn+gh58pAwBhweYcTzrk6gzVSH7Rc6Npg2eXEmoCMv1
>     <https://paste.ec/paste/JxbabBm7#Kn+gh58pAwBhweYcTzrk6gzVSH7Rc6Npg2eXEmoCMv1>.
> 
>     I am quite sure that I have plenty of disk space available:
> 
>     $ df -h .
>     Filesystem             Size   Used  Available Capacity  Mounted on
>     rpool/zones/build/build-userland/ROOT/zbe-125
>                             114G  14.7G      74.9G    17%    /
> 
>     Any idea what the problem might be? I build it on Lenovo X220 (4
>     cores, 6 GB of memory + 3 GB of swap), OS is updated to latest
>     packages. I don't think I limited the zone in any way when I created it.
> 
> 
> 
> I have seen one instance of rustc take more than 3GB so you probably ran 
> out of mem.

I guess that's the only logical explanation, especially when the same 
component sources work for you. Hence I don't have a suitable system to 
work this on.

I also tried to bump rust to 1.28 but failed short as "-nodefaultlibs" 
is getting my way: 
https://github.com/mno-hime/oi-userland/tree/rust/components/developer/rust.

M.