diff options
Diffstat (limited to 'nixpkgs/pkgs/development/libraries/science/math/cudnn/generic.nix')
| -rw-r--r-- | nixpkgs/pkgs/development/libraries/science/math/cudnn/generic.nix | 76 |
1 files changed, 56 insertions, 20 deletions
diff --git a/nixpkgs/pkgs/development/libraries/science/math/cudnn/generic.nix b/nixpkgs/pkgs/development/libraries/science/math/cudnn/generic.nix index e0a6ffd9d547..db85bfdd9c0b 100644 --- a/nixpkgs/pkgs/development/libraries/science/math/cudnn/generic.nix +++ b/nixpkgs/pkgs/development/libraries/science/math/cudnn/generic.nix @@ -1,6 +1,7 @@ { stdenv, backendStdenv, lib, + lndir, zlib, useCudatoolkitRunfile ? false, cudaVersion, @@ -10,14 +11,6 @@ autoPatchelfHook, autoAddOpenGLRunpathHook, fetchurl, - # The distributed version of CUDNN includes both dynamically liked .so files, - # as well as statically linked .a files. However, CUDNN is quite large - # (multiple gigabytes), so you can save some space in your nix store by - # removing the statically linked libraries if you are not using them. - # - # Setting this to true removes the statically linked .a files. - # Setting this to false keeps these statically linked .a files. - removeStatic ? false, }: { version, url, @@ -48,11 +41,16 @@ in backendStdenv.mkDerivation { pname = "cudatoolkit-${cudaMajorVersion}-cudnn"; version = versionTriple; + strictDeps = true; + outputs = ["out" "lib" "static" "dev"]; src = fetchurl { inherit url hash; }; + # We do need some other phases, like configurePhase, so the multiple-output setup hook works. + dontBuild = true; + # Check and normalize Runpath against DT_NEEDED using autoPatchelf. # Prepend /run/opengl-driver/lib using addOpenGLRunpath for dlopen("libcudacuda.so") nativeBuildInputs = [ @@ -74,27 +72,49 @@ in # # Note also that version <=8.3.0 contained a subdirectory "lib64/" but in # version 8.3.2 it seems to have been renamed to simply "lib/". + # + # doc and dev have special output handling. Other outputs need to be moved to their own + # output. + # Note that moveToOutput operates on all outputs: + # https://github.com/NixOS/nixpkgs/blob/2920b6fc16a9ed5d51429e94238b28306ceda79e/pkgs/build-support/setup-hooks/multiple-outputs.sh#L105-L107 installPhase = '' runHook preInstall - mkdir -p $out - cp -a include $out/include - [ -d "lib/" ] && cp -a lib $out/lib - [ -d "lib64/" ] && cp -a lib64 $out/lib64 - '' - + strings.optionalString removeStatic '' - rm -f $out/lib/*.a - rm -f $out/lib64/*.a - '' - + '' + mkdir -p "$out" + mv * "$out" + moveToOutput "lib64" "$lib" + moveToOutput "lib" "$lib" + moveToOutput "**/*.a" "$static" + runHook postInstall ''; # Without --add-needed autoPatchelf forgets $ORIGIN on cuda>=8.0.5. postFixup = strings.optionalString (strings.versionAtLeast versionTriple "8.0.5") '' - patchelf $out/lib/libcudnn.so --add-needed libcudnn_cnn_infer.so - patchelf $out/lib/libcudnn_ops_infer.so --add-needed libcublas.so --add-needed libcublasLt.so + patchelf $lib/lib/libcudnn.so --add-needed libcudnn_cnn_infer.so + patchelf $lib/lib/libcudnn_ops_infer.so --add-needed libcublas.so --add-needed libcublasLt.so + ''; + + # The out output leverages the same functionality which backs the `symlinkJoin` function in + # Nixpkgs: + # https://github.com/NixOS/nixpkgs/blob/d8b2a92df48f9b08d68b0132ce7adfbdbc1fbfac/pkgs/build-support/trivial-builders/default.nix#L510 + # + # That should allow us to emulate "fat" default outputs without having to actually create them. + # + # It is important that this run after the autoPatchelfHook, otherwise the symlinks in out will reference libraries in lib, creating a circular dependency. + postPhases = ["postPatchelf"]; + # For each output, create a symlink to it in the out output. + # NOTE: We must recreate the out output here, because the setup hook will have deleted it + # if it was empty. + # NOTE: Do not use optionalString based on whether `outputs` contains only `out` -- phases + # which are empty strings are skipped/unset and result in errors of the form "command not + # found: <customPhaseName>". + postPatchelf = '' + mkdir -p "$out" + ${lib.meta.getExe lndir} "$lib" "$out" + ${lib.meta.getExe lndir} "$static" "$out" + ${lib.meta.getExe lndir} "$dev" "$out" ''; passthru = { @@ -111,6 +131,19 @@ in majorVersion = versions.major versionTriple; }; + # Setting propagatedBuildInputs to false will prevent outputs known to the multiple-outputs + # from depending on `out` by default. + # https://github.com/NixOS/nixpkgs/blob/2920b6fc16a9ed5d51429e94238b28306ceda79e/pkgs/build-support/setup-hooks/multiple-outputs.sh#L196 + # Indeed, we want to do the opposite -- fat "out" outputs that contain all the other outputs. + propagatedBuildOutputs = false; + + # By default, if the dev output exists it just uses that. + # However, because we disabled propagatedBuildOutputs, dev doesn't contain libraries or + # anything of the sort. To remedy this, we set outputSpecified to true, and use + # outputsToInstall, which tells Nix which outputs to use when the package name is used + # unqualified (that is, without an explicit output). + outputSpecified = true; + meta = with lib; { # Check that the cudatoolkit version satisfies our min/max constraints (both # inclusive). We mark the package as broken if it fails to satisfies the @@ -127,5 +160,8 @@ in license = licenses.unfree; platforms = ["x86_64-linux"]; maintainers = with maintainers; [mdaiter samuela]; + # Force the use of the default, fat output by default (even though `dev` exists, which + # causes Nix to prefer that output over the others if outputSpecified isn't set). + outputsToInstall = ["out"]; }; } |