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chore(nix): properly link musl in flake #465

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chore(nix): properly link musl in flake #465

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58 changes: 46 additions & 12 deletions flake.nix
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Original file line number Diff line number Diff line change
Expand Up @@ -23,7 +23,7 @@
beamPackages = pkgs.beam_minimal.packages.erlang_26;
beam = fetchTarball beams.${system};
rawmusl = musls.${system};
musl = lib.optionals nixpkgs.legacyPackages.${system}.stdenv.isLinux (builtins.fetchurl (nixpkgs.lib.attrsets.getAttrs ["url" "sha256"] musls.${system}));
# musl = lib.optionals nixpkgs.legacyPackages.${system}.stdenv.isLinux (builtins.fetchurl (nixpkgs.lib.attrsets.getAttrs ["url" "sha256"] musls.${system}));
otp = (pkgs.beam.packagesWith beamPackages.erlang).extend (final: prev: {
elixir_1_17 = prev.elixir_1_16.override {
rev = "e3b6a91b173f7e836401a6a75c3906c26bd7fd39";
Expand All @@ -39,7 +39,7 @@
});
elixir = otp.elixir;
in
f {inherit system pkgs beamPackages elixir beam rawmusl musl;});
f {inherit system pkgs beamPackages elixir beam rawmusl;});

burritoExe = {
"aarch64-darwin" = "darwin_arm64";
Expand Down Expand Up @@ -85,7 +85,6 @@
system,
beamPackages,
beam,
musl,
rawmusl,
elixir,
}: let
Expand All @@ -96,6 +95,19 @@
ln -s ${pkgs._7zz}/bin/7zz $out/bin/7z
'';
};
muslPkg = pkgs.stdenv.mkDerivation {
name = "musl-libc";
src = pkgs.fetchurl {
url = musls.${system}.url;
sha256 = musls.${system}.sha256;
};
unpackPhase = "true";
installPhase = ''
mkdir $out
cp $src $out/${rawmusl.file}
chmod +x $out/${rawmusl.file}
'';
};
in {
default = lib.makeOverridable ({
localBuild,
Expand All @@ -109,7 +121,7 @@
inherit version elixir;
inherit (beamPackages) erlang;

nativeBuildInputs = [pkgs.xz pkgs.zig_0_11 aliased_7zz beam];
nativeBuildInputs = [pkgs.xz pkgs.zig_0_11 aliased_7zz beam muslPkg];

mixFodDeps = beamPackages.fetchMixDeps {
src = self.outPath;
Expand All @@ -122,20 +134,42 @@
BURRITO_ERTS_PATH = "/tmp/beam/";
BURRITO_TARGET = lib.optional localBuild burritoExe.${system};

preBuild =
preBuild = let
destination = "/tmp/beam/otp";
in
''
export HOME="$TEMPDIR"
mkdir -p /tmp/beam/otp
cp -r --no-preserve=ownership,timestamps ${beam}/. /tmp/beam/otp
''
+ (
mkdir -p ${destination}
cp -r --no-preserve=timestamps ${beam}/. ${destination}
chmod -R u+w ${destination} # Make all copied files writable

# Listing files in the destination to confirm
echo "Listing files in ${destination}/erts-14.2.1/bin/"
ls -al ${destination}/erts-14.2.1/bin/
'' +
(
if (pkgs.stdenv.isLinux)
then ''
cp --no-preserve=ownership,timestamps ${musl} /tmp/${rawmusl.file}
chmod +x /tmp/${rawmusl.file}
# Applying patchelf to binaries in the copied directory
patchelf --set-interpreter ${muslPkg}/${rawmusl.file} ${destination}/erts-14.2.1/bin/beam.smp
patchelf --set-interpreter ${muslPkg}/${rawmusl.file} ${destination}/erts-14.2.1/bin/ct_run
patchelf --set-interpreter ${muslPkg}/${rawmusl.file} ${destination}/erts-14.2.1/bin/dialyzer
patchelf --set-interpreter ${muslPkg}/${rawmusl.file} ${destination}/erts-14.2.1/bin/dyn_erl
patchelf --set-interpreter ${muslPkg}/${rawmusl.file} ${destination}/erts-14.2.1/bin/epmd
patchelf --set-interpreter ${muslPkg}/${rawmusl.file} ${destination}/erts-14.2.1/bin/erl_call
patchelf --set-interpreter ${muslPkg}/${rawmusl.file} ${destination}/erts-14.2.1/bin/erl_child_setup
patchelf --set-interpreter ${muslPkg}/${rawmusl.file} ${destination}/erts-14.2.1/bin/erlc
patchelf --set-interpreter ${muslPkg}/${rawmusl.file} ${destination}/erts-14.2.1/bin/erlexec
patchelf --set-interpreter ${muslPkg}/${rawmusl.file} ${destination}/erts-14.2.1/bin/escript
patchelf --set-interpreter ${muslPkg}/${rawmusl.file} ${destination}/erts-14.2.1/bin/heart
patchelf --set-interpreter ${muslPkg}/${rawmusl.file} ${destination}/erts-14.2.1/bin/inet_gethost
patchelf --set-interpreter ${muslPkg}/${rawmusl.file} ${destination}/erts-14.2.1/bin/run_erl
patchelf --set-interpreter ${muslPkg}/${rawmusl.file} ${destination}/erts-14.2.1/bin/to_erl
patchelf --set-interpreter ${muslPkg}/${rawmusl.file} ${destination}/erts-14.2.1/bin/typer
patchelf --set-interpreter ${muslPkg}/${rawmusl.file} ${destination}/erts-14.2.1/bin/yielding_c_fun
''
else ""
);
);

postInstall = ''
chmod +x ./burrito_out/*
Expand Down
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