306 lines
11 KiB
Nix
306 lines
11 KiB
Nix
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{
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# General callPackage-supplied arguments
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autoAddOpenGLRunpathHook,
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autoAddCudaCompatRunpathHook,
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autoPatchelfHook,
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backendStdenv,
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fetchurl,
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lib,
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lndir,
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markForCudatoolkitRootHook,
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flags,
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stdenv,
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hostPlatform,
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# Builder-specific arguments
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# Short package name (e.g., "cuda_cccl")
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# pname : String
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pname,
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# Common name (e.g., "cutensor" or "cudnn") -- used in the URL.
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# Also known as the Redistributable Name.
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# redistName : String,
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redistName,
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# If libPath is non-null, it must be a subdirectory of `lib`.
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# The contents of `libPath` will be moved to the root of `lib`.
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libPath ? null,
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# See ./modules/generic/manifests/redistrib/release.nix
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redistribRelease,
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# See ./modules/generic/manifests/feature/release.nix
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featureRelease,
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}:
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let
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inherit (lib)
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attrsets
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lists
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meta
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strings
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trivial
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licenses
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teams
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sourceTypes
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;
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# Get the redist architectures for which package provides distributables.
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# These are used by meta.platforms.
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supportedRedistArchs = builtins.attrNames featureRelease;
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redistArch = flags.getRedistArch hostPlatform.system;
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in
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backendStdenv.mkDerivation (
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finalAttrs: {
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# NOTE: Even though there's no actual buildPhase going on here, the derivations of the
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# redistributables are sensitive to the compiler flags provided to stdenv. The patchelf package
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# is sensitive to the compiler flags provided to stdenv, and we depend on it. As such, we are
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# also sensitive to the compiler flags provided to stdenv.
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inherit pname;
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inherit (redistribRelease) version;
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# Don't force serialization to string for structured attributes, like outputToPatterns
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# and brokenConditions.
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# Avoids "set cannot be coerced to string" errors.
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__structuredAttrs = true;
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# Keep better track of dependencies.
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strictDeps = true;
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# NOTE: Outputs are evaluated jointly with meta, so in the case that this is an unsupported platform,
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# we still need to provide a list of outputs.
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outputs =
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let
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# Checks whether the redistributable provides an output.
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hasOutput =
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output:
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attrsets.attrByPath
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[
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redistArch
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"outputs"
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output
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]
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false
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featureRelease;
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# Order is important here so we use a list.
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possibleOutputs = [
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"bin"
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"lib"
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"static"
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"dev"
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"doc"
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"sample"
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"python"
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];
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additionalOutputs =
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if redistArch == "unsupported" then possibleOutputs else builtins.filter hasOutput possibleOutputs;
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# The out output is special -- it's the default output and we always include it.
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outputs = [ "out" ] ++ additionalOutputs;
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in
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outputs;
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# Traversed in the order of the outputs speficied in outputs;
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# entries are skipped if they don't exist in outputs.
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outputToPatterns = {
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bin = [ "bin" ];
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dev = [
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"share/pkg-config"
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"**/*.pc"
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"**/*.cmake"
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];
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lib = [
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"lib"
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"lib64"
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];
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static = ["**/*.a"];
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sample = ["samples"];
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python = ["**/*.whl"];
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};
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# Useful for introspecting why something went wrong.
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# Maps descriptions of why the derivation would be marked broken to
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# booleans indicating whether that description is true.
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brokenConditions = {};
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src = fetchurl {
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url =
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if (builtins.hasAttr redistArch redistribRelease) then
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"https://developer.download.nvidia.com/compute/${redistName}/redist/${
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redistribRelease.${redistArch}.relative_path
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}"
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else
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"cannot-construct-an-url-for-the-${redistArch}-platform";
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sha256 = redistribRelease.${redistArch}.sha256 or lib.fakeHash;
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};
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postPatch = ''
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if [[ -d pkg-config ]] ; then
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mkdir -p share/pkg-config
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mv pkg-config/* share/pkg-config/
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rmdir pkg-config
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fi
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for pc in share/pkg-config/*.pc ; do
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sed -i \
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-e "s|^cudaroot\s*=.*\$|cudaroot=''${!outputDev}|" \
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-e "s|^libdir\s*=.*/lib\$|libdir=''${!outputLib}/lib|" \
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-e "s|^includedir\s*=.*/include\$|includedir=''${!outputDev}/include|" \
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"$pc"
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done
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'';
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# We do need some other phases, like configurePhase, so the multiple-output setup hook works.
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dontBuild = true;
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nativeBuildInputs = [
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autoPatchelfHook
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# This hook will make sure libcuda can be found
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# in typically /lib/opengl-driver by adding that
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# directory to the rpath of all ELF binaries.
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# Check e.g. with `patchelf --print-rpath path/to/my/binary
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autoAddOpenGLRunpathHook
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markForCudatoolkitRootHook
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]
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# autoAddCudaCompatRunpathHook depends on cuda_compat and would cause
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# infinite recursion if applied to `cuda_compat` itself (beside the fact
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# that it doesn't make sense in the first place)
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++ lib.optionals (pname != "cuda_compat" && flags.isJetsonBuild) [
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# autoAddCudaCompatRunpathHook must appear AFTER autoAddOpenGLRunpathHook.
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# See its documentation in ./setup-hooks/extension.nix.
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autoAddCudaCompatRunpathHook
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];
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buildInputs =
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[
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# autoPatchelfHook will search for a libstdc++ and we're giving it
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# one that is compatible with the rest of nixpkgs, even when
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# nvcc forces us to use an older gcc
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# NB: We don't actually know if this is the right thing to do
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stdenv.cc.cc.lib
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];
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# Picked up by autoPatchelf
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# Needed e.g. for libnvrtc to locate (dlopen) libnvrtc-builtins
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appendRunpaths = ["$ORIGIN"];
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# NOTE: We don't need to check for dev or doc, because those outputs are handled by
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# the multiple-outputs setup hook.
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# NOTE: moveToOutput operates on all outputs:
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# https://github.com/NixOS/nixpkgs/blob/2920b6fc16a9ed5d51429e94238b28306ceda79e/pkgs/build-support/setup-hooks/multiple-outputs.sh#L105-L107
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installPhase =
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let
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mkMoveToOutputCommand =
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output:
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let
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template = pattern: ''moveToOutput "${pattern}" "${"$" + output}"'';
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patterns = finalAttrs.outputToPatterns.${output} or [];
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in
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strings.concatMapStringsSep "\n" template patterns;
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in
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# Pre-install hook
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''
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runHook preInstall
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''
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# Handle the existence of libPath, which requires us to re-arrange the lib directory
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+ strings.optionalString (libPath != null) ''
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full_lib_path="lib/${libPath}"
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if [[ ! -d "$full_lib_path" ]] ; then
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echo "${finalAttrs.pname}: '$full_lib_path' does not exist, only found:" >&2
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find lib/ -mindepth 1 -maxdepth 1 >&2
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echo "This release might not support your CUDA version" >&2
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exit 1
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fi
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echo "Making libPath '$full_lib_path' the root of lib" >&2
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mv "$full_lib_path" lib_new
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rm -r lib
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mv lib_new lib
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''
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# Create the primary output, out, and move the other outputs into it.
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+ ''
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mkdir -p "$out"
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mv * "$out"
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''
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# Move the outputs into their respective outputs.
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+ strings.concatMapStringsSep "\n" mkMoveToOutputCommand (builtins.tail finalAttrs.outputs)
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# Add a newline to the end of the installPhase, so that the post-install hook doesn't
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# get concatenated with the last moveToOutput command.
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+ "\n"
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# Post-install hook
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+ ''
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runHook postInstall
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'';
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doInstallCheck = true;
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allowFHSReferences = true; # TODO: Default to `false`
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postInstallCheck = ''
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echo "Executing postInstallCheck"
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if [[ -z "''${allowFHSReferences-}" ]] ; then
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mapfile -t outputPaths < <(for o in $(getAllOutputNames); do echo "''${!o}"; done)
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if grep --max-count=5 --recursive --exclude=LICENSE /usr/ "''${outputPaths[@]}" ; then
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echo "Detected references to /usr" >&2
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exit 1
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fi
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fi
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'';
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# libcuda needs to be resolved during runtime
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# NOTE: Due to the use of __structuredAttrs, we can't use a list for autoPatchelfIgnoreMissingDeps, since it
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# will take only the first value. Instead, we produce a string with the values separated by spaces.
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# Using the `env` attribute ensures that the value is representable as one of the primitives allowed by
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# bash's environment variables.
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env.autoPatchelfIgnoreMissingDeps = "libcuda.so libcuda.so.*";
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# The out output leverages the same functionality which backs the `symlinkJoin` function in
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# Nixpkgs:
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# https://github.com/NixOS/nixpkgs/blob/d8b2a92df48f9b08d68b0132ce7adfbdbc1fbfac/pkgs/build-support/trivial-builders/default.nix#L510
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#
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# That should allow us to emulate "fat" default outputs without having to actually create them.
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#
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# It is important that this run after the autoPatchelfHook, otherwise the symlinks in out will reference libraries in lib, creating a circular dependency.
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postPhases = ["postPatchelf"];
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# For each output, create a symlink to it in the out output.
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# NOTE: We must recreate the out output here, because the setup hook will have deleted it if it was empty.
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postPatchelf = ''
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mkdir -p "$out"
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for output in $(getAllOutputNames); do
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if [[ "$output" != "out" ]]; then
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${meta.getExe lndir} "''${!output}" "$out"
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fi
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done
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'';
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# Make the CUDA-patched stdenv available
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passthru.stdenv = backendStdenv;
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# Setting propagatedBuildInputs to false will prevent outputs known to the multiple-outputs
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# from depending on `out` by default.
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# https://github.com/NixOS/nixpkgs/blob/2920b6fc16a9ed5d51429e94238b28306ceda79e/pkgs/build-support/setup-hooks/multiple-outputs.sh#L196
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# Indeed, we want to do the opposite -- fat "out" outputs that contain all the other outputs.
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propagatedBuildOutputs = false;
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# By default, if the dev output exists it just uses that.
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# However, because we disabled propagatedBuildOutputs, dev doesn't contain libraries or
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# anything of the sort. To remedy this, we set outputSpecified to true, and use
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# outputsToInstall, which tells Nix which outputs to use when the package name is used
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# unqualified (that is, without an explicit output).
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outputSpecified = true;
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meta = {
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description = "${redistribRelease.name}. By downloading and using the packages you accept the terms and conditions of the ${finalAttrs.meta.license.shortName}";
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sourceProvenance = [sourceTypes.binaryNativeCode];
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platforms =
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lists.concatMap
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(
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redistArch:
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let
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nixSystem = flags.getNixSystem redistArch;
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in
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lists.optionals (!(strings.hasPrefix "unsupported-" nixSystem)) [ nixSystem ]
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)
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supportedRedistArchs;
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broken = lists.any trivial.id (attrsets.attrValues finalAttrs.brokenConditions);
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license = licenses.unfree;
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maintainers = teams.cuda.members;
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# Force the use of the default, fat output by default (even though `dev` exists, which
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# causes Nix to prefer that output over the others if outputSpecified isn't set).
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outputsToInstall = ["out"];
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};
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}
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)
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