77 lines
2.7 KiB
Nix
77 lines
2.7 KiB
Nix
final: prev: let
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### Cuda Toolkit
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# Function to build the class cudatoolkit package
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buildCudaToolkitPackage = final.callPackage ./common.nix;
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# Version info for the classic cudatoolkit packages that contain everything that is in redist.
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cudatoolkitVersions = final.lib.importTOML ./versions.toml;
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finalVersion = cudatoolkitVersions.${final.cudaVersion};
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# Exposed as cudaPackages.backendStdenv.
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# This is what nvcc uses as a backend,
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# and it has to be an officially supported one (e.g. gcc11 for cuda11).
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#
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# It, however, propagates current stdenv's libstdc++ to avoid "GLIBCXX_* not found errors"
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# when linked with other C++ libraries.
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# E.g. for cudaPackages_11_8 we use gcc11 with gcc12's libstdc++
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# Cf. https://github.com/NixOS/nixpkgs/pull/218265 for context
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backendStdenv = final.callPackage ./stdenv.nix {
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# We use buildPackages (= pkgsBuildHost) because we look for a gcc that
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# runs on our build platform, and that produces executables for the host
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# platform (= platform on which we deploy and run the downstream packages).
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# The target platform of buildPackages.gcc is our host platform, so its
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# .lib output should be the libstdc++ we want to be writing in the runpaths
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# Cf. https://github.com/NixOS/nixpkgs/pull/225661#discussion_r1164564576
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nixpkgsCompatibleLibstdcxx = final.pkgs.buildPackages.gcc.cc.lib;
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nvccCompatibleCC = final.pkgs.buildPackages."${finalVersion.gcc}".cc;
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};
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### Add classic cudatoolkit package
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cudatoolkit =
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let
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attrs = builtins.removeAttrs finalVersion [ "gcc" ];
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attrs' = attrs // { inherit backendStdenv; };
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in
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buildCudaToolkitPackage attrs';
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cudaFlags = final.callPackage ./flags.nix {};
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# Internal hook, used by cudatoolkit and cuda redist packages
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# to accommodate automatic CUDAToolkit_ROOT construction
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markForCudatoolkitRootHook = (final.callPackage
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({ makeSetupHook }:
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makeSetupHook
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{ name = "mark-for-cudatoolkit-root-hook"; }
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./hooks/mark-for-cudatoolkit-root-hook.sh)
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{ });
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# Normally propagated by cuda_nvcc or cudatoolkit through their depsHostHostPropagated
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setupCudaHook = (final.callPackage
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({ makeSetupHook, backendStdenv }:
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makeSetupHook
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{
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name = "setup-cuda-hook";
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substitutions.ccRoot = "${backendStdenv.cc}";
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# Required in addition to ccRoot as otherwise bin/gcc is looked up
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# when building CMakeCUDACompilerId.cu
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substitutions.ccFullPath = "${backendStdenv.cc}/bin/${backendStdenv.cc.targetPrefix}c++";
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}
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./hooks/setup-cuda-hook.sh)
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{ });
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in
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{
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inherit
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backendStdenv
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cudatoolkit
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cudaFlags
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markForCudatoolkitRootHook
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setupCudaHook;
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saxpy = final.callPackage ./saxpy { };
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}
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