fix(bun): fix bun and bun-dependent packages on old CPUs

2026-07-09 07:59:27 +02:00
parent 76fa31e3d2
commit 1504173111
5 changed files with 98 additions and 12 deletions
@@ -0,0 +1,70 @@
+# Baseline variant of Bun for x86_64-linux CPUs without AVX2 support.
+# The regular `bun` from nixpkgs requires AVX2 and crashes with SIGILL on older hardware.
+#
+# Version is typically kept in sync with nixpkgs's `bun` (passed via `callPackage`).
+{
+  lib,
+  stdenvNoCC,
+  fetchurl,
+  autoPatchelfHook,
+  unzip,
+  makeBinaryWrapper,
+  glibc,
+  stdenv,
+  version ? "1.3.13",
+}: let
+  # When updating `version`, compute the new hash with:
+  #   nix store prefetch-file  "https://github.com/oven-sh/bun/releases/download/bun-v${version}/bun-linux-x64-baseline.zip"
+  hash = {
+    "1.3.13" = "sha256-nYokKSpwaAkCBdqsCloiP19pc29Sh+N7+I07QDHtx1A=";
+  };
+in
+  stdenvNoCC.mkDerivation {
+    pname = "bun-baseline";
+    inherit version;
+
+    src = fetchurl {
+      url = "https://github.com/oven-sh/bun/releases/download/bun-v${version}/bun-linux-x64-baseline.zip";
+      hash = hash.${version};
+    };
+
+    nativeBuildInputs =
+      [unzip]
+      ++ lib.optionals stdenvNoCC.hostPlatform.isLinux [
+        autoPatchelfHook
+        makeBinaryWrapper
+      ];
+
+    buildInputs = lib.optionals stdenvNoCC.hostPlatform.isLinux [
+      glibc
+      (lib.getLib stdenv.cc.cc)
+    ];
+
+    dontConfigure = true;
+    dontBuild = true;
+
+    unpackPhase = ''
+      runHook preUnpack
+      mkdir -p source
+      cd source
+      ${lib.getExe unzip} -q $src
+      runHook postUnpack
+    '';
+
+    installPhase = ''
+      runHook preInstall
+      mkdir -p $out/bin
+      find . -type f -name "bun" -not -path "./__MACOSX/*" -exec cp {} $out/bin/bun \;
+      chmod +x $out/bin/bun
+      ln -s $out/bin/bun $out/bin/bunx
+      runHook postInstall
+    '';
+
+    meta = {
+      description = "Bun JavaScript runtime (baseline variant, works without AVX2)";
+      homepage = "https://bun.sh";
+      license = lib.licenses.mit;
+      platforms = ["x86_64-linux"];
+      mainProgram = "bun";
+    };
+  }