mirror of
https://github.com/saymrwulf/pytorch.git
synced 2026-05-14 20:57:59 +00:00
5f2c320840
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/26478
### Summary
Since QNNPACK [doesn't support bitcode](7d2a4e9931/scripts/build-ios-arm64.sh (L40)), I'm going to disable it in our CMake scripts. This won't hurt any existing functionalities, and will only affect the build size. Any application that wants to integrate our framework should turn off bitcode as well.
### Test plan
- CI job works
- LibTorch.a can be compiled and run on iOS devices
Test Plan: Imported from OSS
Differential Revision: D17489020
Pulled By: xta0
fbshipit-source-id: 950619b9317036cad0505d8a531fb8f5331dc81f
106 lines
3.8 KiB
Bash
Executable file
106 lines
3.8 KiB
Bash
Executable file
#!/bin/bash -xe
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##############################################################################
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# Example command to build the iOS target.
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##############################################################################
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#
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# This script shows how one can build a Caffe2 binary for the iOS platform
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# using ios-cmake. This is very similar to the android-cmake - see
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# build_android.sh for more details.
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CAFFE2_ROOT="$( cd "$(dirname "$0")"/.. ; pwd -P)"
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# Now, actually build the iOS target.
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BUILD_ROOT=${BUILD_ROOT:-"$CAFFE2_ROOT/build_ios"}
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INSTALL_PREFIX=${BUILD_ROOT}/install
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mkdir -p $BUILD_ROOT
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cd $BUILD_ROOT
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CMAKE_ARGS=()
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if [ -n "${BUILD_PYTORCH_MOBILE:-}" ]; then
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CMAKE_ARGS+=("-DBUILD_CAFFE2_MOBILE=OFF")
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CMAKE_ARGS+=("-DCMAKE_PREFIX_PATH=$(python -c 'from distutils.sysconfig import get_python_lib; print(get_python_lib())')")
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CMAKE_ARGS+=("-DPYTHON_EXECUTABLE=$(python -c 'import sys; print(sys.executable)')")
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CMAKE_ARGS+=("-DBUILD_CUSTOM_PROTOBUF=OFF")
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# bitcode
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if [ "${ENABLE_BITCODE:-}" == '1' ]; then
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CMAKE_ARGS+=("-DCMAKE_C_FLAGS=-fembed-bitcode")
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CMAKE_ARGS+=("-DCMAKE_CXX_FLAGS=-fembed-bitcode")
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fi
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else
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# Build protobuf from third_party so we have a host protoc binary.
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echo "Building protoc"
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BITCODE_FLAGS="-DCMAKE_C_FLAGS=-fembed-bitcode -DCMAKE_CXX_FLAGS=-fembed-bitcode "
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$CAFFE2_ROOT/scripts/build_host_protoc.sh --other-flags $BITCODE_FLAGS
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# Use locally built protoc because we'll build libprotobuf for the
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# target architecture and need an exact version match.
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CMAKE_ARGS+=("-DCAFFE2_CUSTOM_PROTOC_EXECUTABLE=$CAFFE2_ROOT/build_host_protoc/bin/protoc")
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# Bitcode is enabled by default for caffe2
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CMAKE_ARGS+=("-DCMAKE_C_FLAGS=-fembed-bitcode")
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CMAKE_ARGS+=("-DCMAKE_CXX_FLAGS=-fembed-bitcode")
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fi
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# Use ios-cmake to build iOS project from CMake.
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# This projects sets CMAKE_C_COMPILER to /usr/bin/gcc and
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# CMAKE_CXX_COMPILER to /usr/bin/g++. In order to use ccache (if it is available) we
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# must override these variables via CMake arguments.
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CMAKE_ARGS+=("-DCMAKE_TOOLCHAIN_FILE=$CAFFE2_ROOT/cmake/iOS.cmake")
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CCACHE_WRAPPER_PATH=/usr/local/opt/ccache/libexec
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if [ -d "$CCACHE_WRAPPER_PATH" ]; then
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CMAKE_ARGS+=("-DCMAKE_C_COMPILER=$CCACHE_WRAPPER_PATH/gcc")
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CMAKE_ARGS+=("-DCMAKE_CXX_COMPILER=$CCACHE_WRAPPER_PATH/g++")
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fi
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# IOS_PLATFORM controls type of iOS platform (see ios-cmake)
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if [ -n "${IOS_PLATFORM:-}" ]; then
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CMAKE_ARGS+=("-DIOS_PLATFORM=${IOS_PLATFORM}")
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if [ "${IOS_PLATFORM}" == "SIMULATOR" ]; then
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# iOS Simulator build is not supported by NNPACK
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CMAKE_ARGS+=("-DUSE_NNPACK=OFF")
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fi
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else
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# IOS_PLATFORM is not set, default to OS, which builds iOS.
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CMAKE_ARGS+=("-DIOS_PLATFORM=OS")
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fi
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if [ -n "${IOS_ARCH:-}" ]; then
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CMAKE_ARGS+=("-DIOS_ARCH=${IOS_ARCH}")
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fi
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# Don't build binaries or tests (only the library)
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CMAKE_ARGS+=("-DBUILD_TEST=OFF")
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CMAKE_ARGS+=("-DBUILD_BINARY=OFF")
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CMAKE_ARGS+=("-DBUILD_PYTHON=OFF")
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# Disable unused dependencies
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CMAKE_ARGS+=("-DUSE_CUDA=OFF")
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CMAKE_ARGS+=("-DUSE_GFLAGS=OFF")
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CMAKE_ARGS+=("-DUSE_OPENCV=OFF")
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CMAKE_ARGS+=("-DUSE_LMDB=OFF")
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CMAKE_ARGS+=("-DUSE_LEVELDB=OFF")
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CMAKE_ARGS+=("-DUSE_MPI=OFF")
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CMAKE_ARGS+=("-DUSE_NUMPY=OFF")
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# pthreads
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CMAKE_ARGS+=("-DCMAKE_THREAD_LIBS_INIT=-lpthread")
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CMAKE_ARGS+=("-DCMAKE_HAVE_THREADS_LIBRARY=1")
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CMAKE_ARGS+=("-DCMAKE_USE_PTHREADS_INIT=1")
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# Only toggle if VERBOSE=1
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if [ "${VERBOSE:-}" == '1' ]; then
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CMAKE_ARGS+=("-DCMAKE_VERBOSE_MAKEFILE=1")
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fi
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cmake "$CAFFE2_ROOT" \
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-DCMAKE_INSTALL_PREFIX=$INSTALL_PREFIX \
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-DCMAKE_BUILD_TYPE=MinSizeRel \
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-DBUILD_SHARED_LIBS=OFF \
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${CMAKE_ARGS[@]} \
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$@
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cmake --build . -- "-j$(sysctl -n hw.ncpu)"
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# copy headers and libs to install directory
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echo "Will install headers and libs to $INSTALL_PREFIX for further Xcode project usage."
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make install
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echo "Installation completed, now you can copy the headers/libs from $INSTALL_PREFIX to your Xcode project directory."
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