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Re: Request to verify powerpc64-linux bootstrap binaries


From: Efraim Flashner
Subject: Re: Request to verify powerpc64-linux bootstrap binaries
Date: Thu, 4 Jun 2020 09:34:02 +0300

On Mon, Jun 01, 2020 at 07:56:43PM -0700, Chris Marusich wrote:
> Hi everyone!
> 
> Thanks to Léo's help, as of commit
> 8159ce1970d91567468cf1bacac313099a009d2a, the master branch now contains
> all the changes necessary to cross-compile powerpc64-linux bootstrap
> binaries.  I've done this without substitutes by running the following
> commands on an x86_64-liinux machine.
> 
> First, to ensure you're using commit
> 8159ce1970d91567468cf1bacac313099a009d2a, put something like this in
> your ~/.config/guix/channels.scm file:
> 
> (list (channel
>         (name 'guix)
>         (url "https://git.savannah.gnu.org/git/guix.git";)
>         (commit
>           "8159ce1970d91567468cf1bacac313099a009d2a")))
> 
> Then, run these commands:
> 
> # Confirm you're using the right guix.
> guix describe
> # Clear as many GC roots as possible, and do a GC run.
> guix gc --delete-generations
> # Build the bootstrap tarballs without substitutes.
> guix build --no-substitutes --target=powerpc64-linux-gnu bootstrap-tarballs
> 
> After a few hours, you should see the following message:
> 
> successfully built 
> /gnu/store/icnj0m294b94pc3rhpmkz6zc41w8vyqj-bootstrap-tarballs-0.drv
> /gnu/store/dy4fhy2vqyxqfad59mfdqdd0qpcrwmyx-bootstrap-tarballs-0
> 
> On my end, the SHA-512 hashes of the binaries are:
> 
> --8<---------------cut here---------------start------------->8---
> 426e5f1d0d7023a90e73286ccda1fa55a359301e998a19dfe00f5b4f5d387e69d7a247f47056f41e609393893b0238a908698fbd28d73b183b32a5dadcfe9fbb
>   binutils-static-stripped-2.34-powerpc64-linux-gnu.tar.xz
> 8aca7f332a1ba8e3c2225c161a7545b0a04ddd690d164dc97afee9c9ea067b0c49bc155e9f06d285c22e24cdd16d91e59730af5f1dd9efcda13a26bede5948a2
>   gcc-stripped-5.5.0-powerpc64-linux-gnu.tar.xz
> a717a420e765accf12cfc1e18ebed76e9359ee58e8781601ca9066ced59196f88a528ddc554c0f57c77e2c01908cafe596f3c8d1df135beb4cae4073b9a999d2
>   glibc-stripped-2.31-powerpc64-linux-gnu.tar.xz
> e2e70c7fcc477fced12eb76704212f9bda0e1ec2cf40137ff6a32a85ca75fec10ec20076b73698438e48c3ce45d24542aa309bb99274f4c3d4f9d49ec9d1dd7b
>   guile-static-stripped-2.0.14-powerpc64-linux-gnu.tar.xz
> 04d9203467ecb48e9f1fca5130199c292212d4d119153778d398899aeef517fc8bce5d25f3505063f38e433fa09e3c723a6da5dee4943dbc9d3728279356879b
>   static-binaries-0-powerpc64-linux-gnu.tar.xz
> --8<---------------cut here---------------end--------------->8---
> 
> Hopefully, you'll get identical results!  You don't have to run "guix
> gc" if you don't want to, but doing so will increase the likelihood of
> catching nondeterminism issues propagated from dependencies (which seem
> unlikely, but you never know).  It took 3 or 4 for me hours on a modern
> 16-core machine.
> 
> Once we verify the binaries, we can actually start using them to build
> stuff!  Léo has already gotten an optimistic start on that work, and
> many things are building successfully.  Exciting!!

After 3(?) days and several reboots I built the bootstrap binaries from
an aarch64-linux machine using the commit.

(ins)efraim@pine64:~/workspace/guix$ git log -1
commit 8159ce1970d91567468cf1bacac313099a009d2a (HEAD -> master)
Author: Léo Le Bouter <lle-bout@zaclys.net>
Date:   Tue May 21 05:00:30 2019 +0000

    gnu: bootstrap: Add powerpc64-linux dynamic linker.

    This makes it possible to build bootstrap binaries for powerpc64-linux:

      guix build --target=powerpc64-linux-gnu bootstrap-tarballs

    * gnu/packages/bootstrap.scm (glibc-dynamic-linker): Add an entry for
    powerpc64-linux.

    Signed-off-by: Chris Marusich <cmmarusich@gmail.com>
(ins)efraim@pine64:~/workspace/guix$ sha512sum 
/gnu/store/38zyf3y0fvi1l0bbkacwaapw5m1jmmi6-bootstrap-tarballs-0/*
426e5f1d0d7023a90e73286ccda1fa55a359301e998a19dfe00f5b4f5d387e69d7a247f47056f41e609393893b0238a908698fbd28d73b183b32a5dadcfe9fbb
  
/gnu/store/38zyf3y0fvi1l0bbkacwaapw5m1jmmi6-bootstrap-tarballs-0/binutils-static-stripped-2.34-powerpc64-linux-gnu.tar.xz
74ac175b22f9964cefbcc94c8589e14fac1ae2c98879f84d40faa352aa9dd108e7ba631e6b35cceae263507d0cc956f31c49af686c1e60850b97c51878bf533d
  
/gnu/store/38zyf3y0fvi1l0bbkacwaapw5m1jmmi6-bootstrap-tarballs-0/gcc-stripped-5.5.0-powerpc64-linux-gnu.tar.xz
0693dc1a0c85ab23ec2f8bbb89a8819c384d50a8830297d0900d6caa94f75c67bbb6f300d182f855e8e6c88810caf1f183e9b24cda574c470dc129641dac1258
  
/gnu/store/38zyf3y0fvi1l0bbkacwaapw5m1jmmi6-bootstrap-tarballs-0/glibc-stripped-2.31-powerpc64-linux-gnu.tar.xz
e2e70c7fcc477fced12eb76704212f9bda0e1ec2cf40137ff6a32a85ca75fec10ec20076b73698438e48c3ce45d24542aa309bb99274f4c3d4f9d49ec9d1dd7b
  
/gnu/store/38zyf3y0fvi1l0bbkacwaapw5m1jmmi6-bootstrap-tarballs-0/guile-static-stripped-2.0.14-powerpc64-linux-gnu.tar.xz
04d9203467ecb48e9f1fca5130199c292212d4d119153778d398899aeef517fc8bce5d25f3505063f38e433fa09e3c723a6da5dee4943dbc9d3728279356879b
  
/gnu/store/38zyf3y0fvi1l0bbkacwaapw5m1jmmi6-bootstrap-tarballs-0/static-binaries-0-powerpc64-linux-gnu.tar.xz

my gcc-stripped tarball should be available at
https://flashner.co.il/~efraim/gcc-stripped-5.5.0-powerpc64-linux-gnu.tar.xz


-- 
Efraim Flashner   <efraim@flashner.co.il>   אפרים פלשנר
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