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63 lines
1.6 KiB
Nix
63 lines
1.6 KiB
Nix
{
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lib,
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backendStdenv,
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setupCudaHook,
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}:
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prevAttrs: {
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# Merge "bin" and "dev" into "out" to avoid circular references
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outputs = builtins.filter (
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x:
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!(builtins.elem x [
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"dev"
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"bin"
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])
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) prevAttrs.outputs or [ ];
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# Patch the nvcc.profile.
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# Syntax:
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# - `=` for assignment,
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# - `?=` for conditional assignment,
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# - `+=` to "prepend",
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# - `=+` to "append".
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# Cf. https://web.archive.org/web/20230308044351/https://arcb.csc.ncsu.edu/~mueller/cluster/nvidia/2.0/nvcc_2.0.pdf
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# We set all variables with the lowest priority (=+), but we do force
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# nvcc to use the fixed backend toolchain. Cf. comments in
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# backend-stdenv.nix
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postPatch =
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prevAttrs.postPatch or ""
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+ ''
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substituteInPlace bin/nvcc.profile \
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--replace-fail \
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'$(TOP)/$(_TARGET_DIR_)/include' \
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"''${!outputDev}/include"
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''
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+ ''
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cat << EOF >> bin/nvcc.profile
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# Fix a compatible backend compiler
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PATH += "${backendStdenv.cc}/bin":
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# Expose the split-out nvvm
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LIBRARIES =+ "-L''${!outputBin}/nvvm/lib"
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INCLUDES =+ "-I''${!outputBin}/nvvm/include"
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EOF
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'';
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# Entries here will be in nativeBuildInputs when cuda_nvcc is in nativeBuildInputs.
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propagatedBuildInputs = prevAttrs.propagatedBuildInputs or [ ] ++ [ setupCudaHook ];
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postInstall = prevAttrs.postInstall or "" + ''
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moveToOutput "nvvm" "''${!outputBin}"
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'';
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# The nvcc and cicc binaries contain hard-coded references to /usr
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allowFHSReferences = true;
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meta = prevAttrs.meta or { } // {
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mainProgram = "nvcc";
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};
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}
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