pkgs/stdenv/linux: init powerpc64-unknown-linux-gnuabielfv2 bootstrap-files

sha256sum of files to be uploaded:

$ sha256sum /nix/store/8frm8kk8gzpv31r289ai5jgkwfikmpm4-stdenv-bootstrap-tools-powerpc64-unknown-linux-gnuabielfv2/on-server/*
0af311476b54b399f3024b92e9c518363acd2b15f713e83d0bb4fb3f8f26d98b /nix/store/8frm8kk8gzpv31r289ai5jgkwfikmpm4-stdenv-bootstrap-tools-powerpc64-unknown-linux-gnuabielfv2/on-server/bootstrap-tools.tar.xz
529a053a8022e89357aaa608e57aaddaa7c3ded93d633916ddca92bb81e22125 /nix/store/8frm8kk8gzpv31r289ai5jgkwfikmpm4-stdenv-bootstrap-tools-powerpc64-unknown-linux-gnuabielfv2/on-server/busybox

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

$ nix-store --realize /nix/store/8frm8kk8gzpv31r289ai5jgkwfikmpm4-stdenv-bootstrap-tools-powerpc64-unknown-linux-gnuabielfv2
$ aws s3 cp --recursive --acl public-read /nix/store/8frm8kk8gzpv31r289ai5jgkwfikmpm4-stdenv-bootstrap-tools-powerpc64-unknown-linux-gnuabielfv2/on-server/ s3://nixpkgs-tarballs/stdenv/powerpc64-unknown-linux-gnuabielfv2/57cf2e0b24fb52344cc718913eaed78f389b1319
$ aws s3 cp --recursive s3://nixpkgs-tarballs/stdenv/powerpc64-unknown-linux-gnuabielfv2/57cf2e0b24fb52344cc718913eaed78f389b1319 ./
$ sha256sum bootstrap-tools.tar.xz busybox
$ sha256sum /nix/store/8frm8kk8gzpv31r289ai5jgkwfikmpm4-stdenv-bootstrap-tools-powerpc64-unknown-linux-gnuabielfv2/on-server/*

pkgs/stdenv/linux/bootstrap-files/powerpc64-unknown-linux-gnuabielfv2.nix

···
+# Autogenerated by maintainers/scripts/bootstrap-files/refresh-tarballs.bash as:
+# $ ./refresh-tarballs.bash --targets=powerpc64-unknown-linux-gnuabielfv2
+#
+# Metadata:
+# - nixpkgs revision: 57cf2e0b24fb52344cc718913eaed78f389b1319
+# - hydra build: https://hydra.nixos.org/job/nixpkgs/cross-trunk/bootstrapTools.powerpc64-unknown-linux-gnuabielfv2.build/latest
+# - resolved hydra build: https://hydra.nixos.org/build/252872323
+# - instantiated derivation: /nix/store/yaa735jz1r1n863gzv3c8szl77lsgg8d-stdenv-bootstrap-tools-powerpc64-unknown-linux-gnuabielfv2.drv
+# - output directory: /nix/store/8frm8kk8gzpv31r289ai5jgkwfikmpm4-stdenv-bootstrap-tools-powerpc64-unknown-linux-gnuabielfv2
+# - build time: Sat, 09 Mar 2024 11:26:00 +0000
+{
+  bootstrapTools = import <nix/fetchurl.nix> {
+    url = "http://tarballs.nixos.org/stdenv/powerpc64-unknown-linux-gnuabielfv2/57cf2e0b24fb52344cc718913eaed78f389b1319/bootstrap-tools.tar.xz";
+    hash = "sha256-CvMRR2tUs5nzAkuS6cUYNjrNKxX3E+g9C7T7P48m2Ys=";
+  };
+  busybox = import <nix/fetchurl.nix> {
+    url = "http://tarballs.nixos.org/stdenv/powerpc64-unknown-linux-gnuabielfv2/57cf2e0b24fb52344cc718913eaed78f389b1319/busybox";
+    hash = "sha256-+vnQrVBHg793JIdQR4Y9KuqdmNZ+Ic0FZvVqrPOKnOY=";
+    executable = true;
+  };
+}

pkgs/stdenv/linux/default.nix

···
        (if localSystem.isMips64n32
         then ./bootstrap-files/mips64el-unknown-linux-gnuabin32.nix
         else ./bootstrap-files/mips64el-unknown-linux-gnuabi64.nix);
+      powerpc64-linux = import ./bootstrap-files/powerpc64-unknown-linux-gnuabielfv2.nix;
       powerpc64le-linux = import ./bootstrap-files/powerpc64le-unknown-linux-gnu.nix;
       riscv64-linux = import ./bootstrap-files/riscv64-unknown-linux-gnu.nix;
     };