pkgs/stdenv/linux: add powerpc64-unknown-linux-gnuabielfv1 bootstrap-files

[OPNA2608]

Reminder to reviewers: This needs someone with upload permissions to tarballs.nixos.org!

If you lack these permissions, then please don't just merge this PR. These links require manual actions from someone with appropriate permissions to work, otherwise they're just 404s.

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sha256sum of files to be uploaded:

$ sha256sum /nix/store/b8zndw2p8f82hn23a3ilkmfc6v26yian-stdenv-bootstrap-tools-powerpc64-unknown-linux-gnuabielfv1/on-server/*
3a78c550c44d1661aed0415233df65a19d37071ea1b42c9389fb4204ed5e9d03 /nix/store/b8zndw2p8f82hn23a3ilkmfc6v26yian-stdenv-bootstrap-tools-powerpc64-unknown-linux-gnuabielfv1/on-server/bootstrap-tools.tar.xz
bb59673eca4833389d52ced4e9357900f19e3a574988b290c9a1f151b243a8fb /nix/store/b8zndw2p8f82hn23a3ilkmfc6v26yian-stdenv-bootstrap-tools-powerpc64-unknown-linux-gnuabielfv1/on-server/busybox

Suggested commands to upload files to 'tarballs.nixos.org':

$ nix-store --realize /nix/store/b8zndw2p8f82hn23a3ilkmfc6v26yian-stdenv-bootstrap-tools-powerpc64-unknown-linux-gnuabielfv1
$ aws s3 cp --recursive --acl public-read /nix/store/b8zndw2p8f82hn23a3ilkmfc6v26yian-stdenv-bootstrap-tools-powerpc64-unknown-linux-gnuabielfv1/on-server/ s3://nixpkgs-tarballs/stdenv/powerpc64-unknown-linux-gnuabielfv1/2ba17da62f2813a5b779ec2b13abe96baec8ea08
$ aws s3 cp --recursive s3://nixpkgs-tarballs/stdenv/powerpc64-unknown-linux-gnuabielfv1/2ba17da62f2813a5b779ec2b13abe96baec8ea08 ./
$ sha256sum bootstrap-tools.tar.xz busybox
$ sha256sum /nix/store/b8zndw2p8f82hn23a3ilkmfc6v26yian-stdenv-bootstrap-tools-powerpc64-unknown-linux-gnuabielfv1/on-server/*

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With #421280, building up to the stdenv on the platform works.
Getting that PR merged and into master might take abit longer: I'm exchanging mails with the gnulib people to properly fix some compatibility issues, which will likely result in a patch that we can unconditionally apply across multiple packages, so the PR will prolly end up going through staging.

Things done

• Built on platform(s)
  • x86_64-linux
  • aarch64-linux
  • powerpc64-linux (ELFv1)
  • x86_64-darwin
  • aarch64-darwin
• For non-Linux: Is sandboxing enabled in nix.conf? (See Nix manual)
  • sandbox = relaxed
  • sandbox = true
• Tested, as applicable:
  • NixOS test(s) (look inside nixos/tests)
  • and/or package tests
  • or, for functions and "core" functionality, tests in lib/tests or pkgs/test
  • made sure NixOS tests are linked to the relevant packages
• Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage
• Tested basic functionality of all binary files (usually in ./result/bin/)
• Nixpkgs 25.11 Release Notes (or backporting 25.05 Nixpkgs Release notes)
  • (Package updates) Added a release notes entry if the change is major or breaking
• NixOS 25.11 Release Notes (or backporting 25.05 NixOS Release notes)
  • (Module updates) Added a release notes entry if the change is significant
  • (Module addition) Added a release notes entry if adding a new NixOS module
• Fits CONTRIBUTING.md, pkgs/README.md, maintainers/README.md and other contributing documentation in corresponding paths.

---

Add a 👍 reaction to pull requests you find important.

[OPNA2608]

puna@HC ~/D/nixpkgs (master)> nix-build --no-out-link . --arg localSystem '(import ./lib).systems.examples.ppc64-elfv1' -A stdenv
/nix/store/2iaf0ah2c1mz2yhz4zwxr7dj5w7n4i56-stdenv-linux
puna@HC ~/D/nixpkgs (master)> nix-build --no-out-link . --arg localSystem '(import ./lib).systems.examples.ppc64-elfv1' -A hello
/nix/store/f8c1s9nw47nq90133jdi10jmmqi2w2ga-hello-2.12.2
puna@HC ~/D/nixpkgs (master)> /nix/store/f8c1s9nw47nq90133jdi10jmmqi2w2ga-hello-2.12.2/bin/hello 
Hello, world!

These seem to work fine.

[Mic92]

Done.

~/git/nixos-infra/terraform stagingHydra-aarch64 ⇡
nix-shell-env % aws s3 cp --recursive --acl public-read /nix/store/b8zndw2p8f82hn23a3ilkmfc6v26yian-stdenv-bootstrap-tools-powerpc64-unknown-linux-gnuabielfv1/on-server/ s3://nixpkgs-tarballs/stdenv/powerpc64-unknown-linux-gnuabielfv1/2ba17da62f2813a5b779ec2b13abe96baec8ea08
upload: ../../../../../nix/store/b8zndw2p8f82hn23a3ilkmfc6v26yian-stdenv-bootstrap-tools-powerpc64-unknown-linux-gnuabielfv1/on-server/busybox to s3://nixpkgs-tarballs/stdenv/powerpc64-unknown-linux-gnuabielfv1/2ba17da62f2813a5b779ec2b13abe96baec8ea08/busybox
upload: ../../../../../nix/store/b8zndw2p8f82hn23a3ilkmfc6v26yian-stdenv-bootstrap-tools-powerpc64-unknown-linux-gnuabielfv1/on-server/bootstrap-tools.tar.xz to s3://nixpkgs-tarballs/stdenv/powerpc64-unknown-linux-gnuabielfv1/2ba17da62f2813a5b779ec2b13abe96baec8ea08/bootstrap-tools.tar.xz

~/git/nixos-infra/terraform stagingHydra-aarch64 ⇡ 6s
nix-shell-env % aws s3 cp --recursive s3://nixpkgs-tarballs/stdenv/powerpc64-unknown-linux-gnuabielfv1/2ba17da62f2813a5b779ec2b13abe96baec8ea08 ./
download: s3://nixpkgs-tarballs/stdenv/powerpc64-unknown-linux-gnuabielfv1/2ba17da62f2813a5b779ec2b13abe96baec8ea08/busybox to ./busybox
download: s3://nixpkgs-tarballs/stdenv/powerpc64-unknown-linux-gnuabielfv1/2ba17da62f2813a5b779ec2b13abe96baec8ea08/bootstrap-tools.tar.xz to ./bootstrap-tools.tar.xz

~/git/nixos-infra/terraform stagingHydra-aarch64 ⇡
nix-shell-env % sha256sum bootstrap-tools.tar.xz busybox
3a78c550c44d1661aed0415233df65a19d37071ea1b42c9389fb4204ed5e9d03 bootstrap-tools.tar.xz
bb59673eca4833389d52ced4e9357900f19e3a574988b290c9a1f151b243a8fb busybox

~/git/nixos-infra/terraform stagingHydra-aarch64 ⇡
nix-shell-env % sha256sum /nix/store/b8zndw2p8f82hn23a3ilkmfc6v26yian-stdenv-bootstrap-tools-powerpc64-unknown-linux-gnuabielfv1/on-server/*
3a78c550c44d1661aed0415233df65a19d37071ea1b42c9389fb4204ed5e9d03 /nix/store/b8zndw2p8f82hn23a3ilkmfc6v26yian-stdenv-bootstrap-tools-powerpc64-unknown-linux-gnuabielfv1/on-server/bootstrap-tools.tar.xz
bb59673eca4833389d52ced4e9357900f19e3a574988b290c9a1f151b243a8fb /nix/store/b8zndw2p8f82hn23a3ilkmfc6v26yian-stdenv-bootstrap-tools-powerpc64-unknown-linux-gnuabielfv1/on-server/busybox

[OPNA2608]

Many thanks! 💚