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{ stdenv
, bash
, abseil-cpp
, fetchFromGitHub
, fetchFromGitLab
, fetchpatch
, fetchurl
, flatbuffers
, hostPlatform
, lib
, zlib
}:
let
tflite-eigen = fetchFromGitLab {
owner = "libeigen";
repo = "eigen";
rev = "3d9051ea84a5089b277c88dac456b3b1576bfa7f";
sha256 = "1y3f2jvimb5i904f4n37h23cv2pkdlbz8656s0kga1y7c0p50wif";
};
gemmlowp-src = fetchFromGitHub {
owner = "google";
repo = "gemmlowp";
rev = "fda83bdc38b118cc6b56753bd540caa49e570745";
sha256 = "1sbp8kmr2azwlvfbzryy1frxi99jhsh1nc93bdbxdf8zdgpv0kxl";
};
neon-2-sse-src = fetchFromGitHub {
owner = "intel";
repo = "ARM_NEON_2_x86_SSE";
rev = "1200fe90bb174a6224a525ee60148671a786a71f";
sha256 = "0fhxch711ck809dpq1myxz63jiiwfcnxvj45ww0kg8s0pqpn5kv6";
};
farmhash-src = fetchFromGitHub {
owner = "google";
repo = "farmhash";
rev = "816a4ae622e964763ca0862d9dbd19324a1eaf45";
sha256 = "1mqxsljq476n1hb8ilkrpb39yz3ip2hnc7rhzszz4sri8ma7qzp6";
};
fft2d-src = fetchurl {
url = "http://www.kurims.kyoto-u.ac.jp/~ooura/fft2d.tgz";
sha256 = "ada7e99087c4ed477bfdf11413f2ba8db8a840ba9bbf8ac94f4f3972e2a7cec9";
};
fp16-src = fetchFromGitHub {
owner = "Maratyszcza";
repo = "FP16";
rev = "4dfe081cf6bcd15db339cf2680b9281b8451eeb3";
sha256 = "06a8dfl3a29r93nxpp6hpywsajz5d555n3sqd3i6krybb6swnvh7";
};
ruy-src = fetchFromGitHub {
owner = "google";
repo = "ruy";
rev = "23633b37099b614a2f836ef012cafc8087fdb98c";
sha256 = "14k9hz6ss8qy8nsajk6lrq25f6qxrldxky31ijw0dpqnfnnswrx4";
};
cpuinfo-src = fetchFromGitHub {
owner = "pytorch";
repo = "cpuinfo";
rev = "5916273f79a21551890fd3d56fc5375a78d1598d";
sha256 = "0q6760xdxsg18acdv8vq3yrq7ksr7wsm8zbyan01zf2khnb6fw4x";
};
in
stdenv.mkDerivation rec {
pname = "tensorflow-lite";
version = "2.5.0";
src = fetchFromGitHub {
owner = "tensorflow";
repo = "tensorflow";
rev = "v${version}";
sha256 = "1jdw2i1rq06zqd6aabh7bbm0avsg4pygnfmd7gviv0blhih9054l";
};
patches = [
# TODO: remove on the next version bump
(fetchpatch {
name = "include-schema-conversion-utils-source.patch";
url = "https://github.com/tensorflow/tensorflow/commit/f3c4f4733692150fd6174f2cd16438cfaba2e5ab.patch";
sha256 = "0zx4hbz679kn79f30159rl1mq74dg45cvaawii0cyv48z472yy4k";
})
# TODO: remove on the next version bump
(fetchpatch {
name = "cxxstandard-var.patch";
url = "https://github.com/tensorflow/tensorflow/commit/9b128ae4200e10b4752f903492d1e7d11957ed5c.patch";
sha256 = "1q0izdwdji5fbyqll6k4dmkzfykyvvz5cvc6hysdj285nkn2wy6h";
})
];
buildInputs = [ zlib flatbuffers ];
dontConfigure = true;
postPatch = ''
substituteInPlace ./tensorflow/lite/tools/make/Makefile \
--replace /bin/bash ${bash}/bin/bash \
--replace /bin/sh ${bash}/bin/sh
'';
makefile = "tensorflow/lite/tools/make/Makefile";
preBuild =
let
includes =
lib.concatMapStringsSep
" "
(subdir: "-I $PWD/tensorflow/lite/tools/make/downloads/${subdir}")
[
"neon_2_sse"
"gemmlowp"
"absl"
"fp16/include"
"farmhash/src"
"ruy"
"cpuinfo"
"cpuinfo/src"
"cpuinfo/include"
"cpuinfo/deps/clog/include"
"eigen"
];
in
''
# enter the vendoring lair of doom
prefix="$PWD/tensorflow/lite/tools/make/downloads"
mkdir -p "$prefix"
tar xzf ${fft2d-src} -C "$prefix"
ln -s ${ruy-src} "$prefix/ruy"
ln -s ${gemmlowp-src} "$prefix/gemmlowp"
ln -s ${neon-2-sse-src} "$prefix/neon_2_sse"
ln -s ${farmhash-src} "$prefix/farmhash"
ln -s ${cpuinfo-src} "$prefix/cpuinfo"
ln -s ${fp16-src} "$prefix/fp16"
ln -s ${tflite-eigen} "$prefix/eigen"
# tensorflow lite is using the *source* of flatbuffers
ln -s ${flatbuffers.src} "$prefix/flatbuffers"
# tensorflow lite expects to compile abseil into `libtensorflow-lite.a`
ln -s ${abseil-cpp.src} "$prefix/absl"
# set CXXSTANDARD=c++17 here because abseil-cpp in nixpkgs is set as
# such and would be used in dependents like libedgetpu
buildFlagsArray+=(
INCLUDES="-I $PWD ${includes}"
CXXSTANDARD="-std=c++17"
TARGET_TOOLCHAIN_PREFIX=""
-j$NIX_BUILD_CORES
all)
'';
installPhase = ''
mkdir "$out"
# copy the static lib and binaries into the output dir
cp -r ./tensorflow/lite/tools/make/gen/linux_${hostPlatform.uname.processor}/{bin,lib} "$out"
find ./tensorflow/lite -type f -name '*.h' | while read f; do
path="$out/include/''${f/.\//}"
install -D "$f" "$path"
# remove executable bit from headers
chmod -x "$path"
done
'';
meta = with lib; {
description = "An open source deep learning framework for on-device inference.";
homepage = "https://www.tensorflow.org/lite";
license = licenses.asl20;
maintainers = with maintainers; [ cpcloud ];
platforms = [ "x86_64-linux" "aarch64-linux" ];
};
}
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