From 3e2df510a9ebd3028d31dc5dec2ca0457d8fab87 Mon Sep 17 00:00:00 2001
From: Aditya Kamble <adityakamble49@gmail.com>
Date: Tue, 11 Dec 2018 15:01:00 +0530
Subject: [PATCH 1/3] Build openblas patch added

---
 patch/caffe-mobile/build-openblas.sh | 160 +++++++++++++++++++++++++++
 1 file changed, 160 insertions(+)
 create mode 100755 patch/caffe-mobile/build-openblas.sh

diff --git a/patch/caffe-mobile/build-openblas.sh b/patch/caffe-mobile/build-openblas.sh
new file mode 100755
index 00000000..f9d55e94
--- /dev/null
+++ b/patch/caffe-mobile/build-openblas.sh
@@ -0,0 +1,160 @@
+#!/bin/bash
+
+PLATFORM=Android
+
+# Options for All
+OPENBLAS_VERSION=0.2.19
+MAKE_FLAGS="$MAKE_FLAGS -j 4"
+BUILD_DIR=".cbuild"
+
+# Options for Android
+# Caffe-Mobile Tested ANDROID_ABI: arm64-v8a, armeabi, armeabi-v7a with NEON
+if [ "$ANDROID_ABI" = "" ]; then
+    ANDROID_ABI="arm64-v8a"
+fi
+if [ "$ANDROID_NATIVE_API_LEVEL" = "" ]; then
+    ANDROID_NATIVE_API_LEVEL=21
+fi
+
+if [ $ANDROID_NATIVE_API_LEVEL -lt 21 -a "$ANDROID_ABI" = "arm64-v8a" ]; then
+    echo "ERROR: This ANDROID_ABI($ANDROID_ABI) requires ANDROID_NATIVE_API_LEVEL($ANDROID_NATIVE_API_LEVEL) >= 21"
+    exit 1
+fi
+
+# Build Environment
+if [ "$(uname)" = "Darwin" ]; then
+    OS=darwin
+elif [ "$(expr substr $(uname -s) 1 5)" = "Linux" ]; then
+    OS=linux
+elif [ "$(expr substr $(uname -s) 1 10)" = "MINGW64_NT" ] || [ "$(expr substr $(uname -s) 1 9)" = "CYGWIN_NT" ]; then
+    OS=windows
+else
+    echo "Unknown OS"
+    exit 1
+fi
+
+if [ "$(uname -m)" = "x86_64"  ]; then
+    BIT=x86_64
+else
+    BIT=x86
+fi
+
+echo "$(tput setaf 2)"
+echo Building Openblas for $PLATFORM
+echo "$(tput sgr0)"
+
+RUN_DIR=$PWD
+
+function fetch-OpenBLAS {
+    echo "$(tput setaf 2)"
+    echo "##########################################"
+    echo " Fetch Openblas $OPENBLAS_VERSION from source."
+    echo "##########################################"
+    echo "$(tput sgr0)"
+
+    if [ ! -f OpenBLAS-${OPENBLAS_VERSION}.tar.gz ]; then
+        curl -L https://github.com/xianyi/OpenBLAS/archive/v${OPENBLAS_VERSION}.tar.gz --output OpenBLAS-${OPENBLAS_VERSION}.tar.gz
+    fi
+    if [ -d OpenBLAS-${OPENBLAS_VERSION} ]; then
+        rm -rf OpenBLAS-${OPENBLAS_VERSION}
+    fi
+    tar -xzf OpenBLAS-${OPENBLAS_VERSION}.tar.gz
+}
+
+
+function fetch-OpenBLAS-softfp {
+    OPENBLAS_VERSION=arm_soft_fp_abi
+    echo "$(tput setaf 2)"
+    echo "##########################################"
+    echo " Fetch Openblas $OPENBLAS_VERSION from source."
+    echo "##########################################"
+    echo "$(tput sgr0)"
+
+    if [ ! -f OpenBLAS-${OPENBLAS_VERSION}.zip ]; then
+        curl -L https://github.com/xianyi/OpenBLAS/archive/${OPENBLAS_VERSION}.zip --output OpenBLAS-${OPENBLAS_VERSION}.zip
+    fi
+    if [ -d OpenBLAS-${OPENBLAS_VERSION} ]; then
+        rm -rf OpenBLAS-${OPENBLAS_VERSION}
+    fi
+    unzip -q OpenBLAS-${OPENBLAS_VERSION}.zip
+}
+
+function build-Android {
+    echo "$(tput setaf 2)"
+    echo "#####################"
+    echo " Building OpenBLAS for $PLATFORM"
+    echo "#####################"
+    echo "$(tput sgr0)"
+
+    # Test ENV NDK_HOME
+    if [ ! -d "$NDK_HOME" ]; then
+        echo "$(tput setaf 2)"
+        echo "###########################################################"
+        echo " ERROR: Invalid NDK_HOME=\"$NDK_HOME\" env variable, exit. "
+        echo "###########################################################"
+        echo "$(tput sgr0)"
+        exit 1
+    fi
+
+    if [ "${ANDROID_ABI}" = "armeabi-v7a with NEON" ]; then
+        CROSS_SUFFIX=$NDK_HOME/toolchains/arm-linux-androideabi-4.9/prebuilt/${OS}-${BIT}/bin/arm-linux-androideabi-
+        SYSROOT=$NDK_HOME/platforms/android-$ANDROID_NATIVE_API_LEVEL/arch-arm
+        TARGET=ARMV7
+        BINARY=32
+        ARM_SOFTFP_ABI=1
+    elif [ "${ANDROID_ABI}" = "arm64-v8a" ]; then
+        CROSS_SUFFIX=$NDK_HOME/toolchains/aarch64-linux-android-4.9/prebuilt/${OS}-${BIT}/bin/aarch64-linux-android-
+        SYSROOT=$NDK_HOME/platforms/android-$ANDROID_NATIVE_API_LEVEL/arch-arm64
+        TARGET=ARMV8
+        BINARY=64
+        ARM_SOFTFP_ABI=0
+    elif [ "${ANDROID_ABI}" = "x86_64" ]; then
+        CROSS_SUFFIX=$NDK_HOME/toolchains/x86_64-4.9/prebuilt/${OS}-${BIT}/bin/x86_64-linux-android-
+        SYSROOT=$NDK_HOME/platforms/android-$ANDROID_NATIVE_API_LEVEL/arch-x86_64
+        TARGET=ATOM
+        BINARY=64
+    elif [ "${ANDROID_ABI}" = "armeabi" ]; then
+        CROSS_SUFFIX=$NDK_HOME/toolchains/arm-linux-androideabi-4.9/prebuilt/${OS}-${BIT}/bin/arm-linux-androideabi-
+        SYSROOT=$NDK_HOME/platforms/android-$ANDROID_NATIVE_API_LEVEL/arch-arm
+        TARGET=ARMV5
+        BINARY=32
+        ARM_SOFTFP_ABI=1
+        sed -i -e 's/_MSC_VER/FORCE_OPENBLAS_COMPLEX_STRUCT/g' OpenBLAS-${OPENBLAS_VERSION}/kernel/arm/zdot.c || exit 1
+    else
+        echo "Error: not support OpenBLAS for ABI: ${ANDROID_ABI}"
+        exit 1
+    fi
+
+    PREFIX=${ANDROID_ABI%% *}-$ANDROID_NATIVE_API_LEVEL-OpenBLAS
+    mkdir -p $PREFIX
+    if [ ! -s $PREFIX/lib/libopenblas.a ]; then
+        cd OpenBLAS-$OPENBLAS_VERSION
+        make ${MAKE_FLAGS} \
+            NOFORTRAN=1 \
+            NO_NOLAPACKE=1 \
+            OSNAME=Android \
+            SMP=1 \
+            USE_THREAD=1 \
+            NUM_THREAD=4 \
+            CROSS_SUFFIX="$CROSS_SUFFIX" \
+            CC="${CROSS_SUFFIX}gcc --sysroot=$SYSROOT" \
+            HOSTCC=gcc \
+            TARGET=$TARGET \
+            ARM_SOFTFP_ABI=$ARM_SOFTFP_ABI \
+            BINARY=$BINARY
+        make \
+            SMP=1 \
+            PREFIX="../$PREFIX" \
+            install
+        cd ..
+    fi
+    rm -rf OpenBLAS
+    ln -s $PREFIX OpenBLAS
+}
+
+if [ "${ANDROID_ABI}" = "armeabi-v7a with NEON" ]; then
+  fetch-OpenBLAS-softfp
+else 
+  fetch-OpenBLAS
+fi 
+build-$PLATFORM

From b9889c891fd8024f08d8cc9730450790b7048892 Mon Sep 17 00:00:00 2001
From: Aditya Kamble <adityakamble49@gmail.com>
Date: Tue, 11 Dec 2018 15:03:13 +0530
Subject: [PATCH 2/3] Build Single script added without openblas

---
 build-single.sh | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100755 build-single.sh

diff --git a/build-single.sh b/build-single.sh
new file mode 100755
index 00000000..a0e75abc
--- /dev/null
+++ b/build-single.sh
@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+
+set -eu
+
+# shellcheck source=/dev/null
+. "$(dirname "$0")/config.sh"
+
+pushd "${PROJECT_DIR}"
+
+./scripts/build_boost.sh
+./scripts/build_gflags.sh
+./scripts/build_glog.sh
+./scripts/build_lmdb.sh
+./scripts/build_snappy.sh
+./scripts/build_leveldb.sh
+./scripts/build_opencv.sh
+./scripts/build_protobuf_host.sh
+./scripts/build_protobuf.sh
+./scripts/build_caffe.sh
+
+popd
+
+echo "DONE!!"

From 7bb88e64376e2ef2a796f556c668acd2eebb7f11 Mon Sep 17 00:00:00 2001
From: Aditya Kamble <adityakamble49@gmail.com>
Date: Tue, 11 Dec 2018 15:03:26 +0530
Subject: [PATCH 3/3] Build script added for all android architecture

---
 build-all.sh | 89 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 89 insertions(+)
 create mode 100755 build-all.sh

diff --git a/build-all.sh b/build-all.sh
new file mode 100755
index 00000000..a234e19d
--- /dev/null
+++ b/build-all.sh
@@ -0,0 +1,89 @@
+# Install necessary packages
+echo "Installing necessary packages"
+sudo apt-get update && sudo apt-get install -y --no-install-recommends \
+    automake \
+    build-essential \
+    ca-certificates \
+    curl \
+    cmake \
+    file \
+    libtool \
+    pkg-config \
+    unzip \
+    wget
+echo "Package Installation completed"
+
+echo "Getting OpenBLAS"
+git clone --recursive https://github.com/solrex/caffe-mobile.git
+
+# Setup Patch - Caffe Mobile
+cp patch/caffe-mobile/build-openblas.sh caffe-mobile/third_party/
+
+echo "Using NDK: "
+echo $NDK_ROOT
+
+echo "Building OpenBLAS"
+# Build openblas lib for all ANDROID_ABIs
+cd caffe-mobile/third_party
+export ANDROID_ABI=arm64-v8a
+./build-openblas.sh
+export ANDROID_ABI=x86_64
+./build-openblas.sh
+export ANDROID_ABI=armeabi
+./build-openblas.sh
+cd ../../
+
+# (DIR caffe-android-lib)
+
+echo "Building Caffe"
+# Build Caffe for ANDROID_ABI = arm64-v8a
+mkdir -p android_lib
+cp -r caffe-mobile/third_party/arm64-v8a-21-OpenBLAS/. android_lib/
+export ANDROID_ABI=arm64-v8a
+./build-single.sh
+mv android_lib android_lib_arm64-v8a
+
+# Build Caffe for ANDROID_ABI = x86_64
+mkdir -p android_lib
+cp -r caffe-mobile/third_party/x86_64-21-OpenBLAS/. android_lib/
+export ANDROID_ABI=x86_64
+./build-single.sh
+mv android_lib android_lib_x86_64
+
+# Build Caffe for ANDROID_ABI = armeabi
+mkdir -p android_lib
+cp -r caffe-mobile/third_party/armeabi-21-OpenBLAS/. android_lib/
+export ANDROID_ABI=armeabi
+./build-single.sh
+mv android_lib android_lib_armeabi
+
+
+echo "Collecting Builds"
+# Copy output header files to single distribution directory
+mkdir -p distribution/caffe/include
+cp -r android_lib_arm64-v8a/include/. distribution/caffe/include
+cp -r android_lib_arm64-v8a/boost/include/. distribution/caffe/include
+cp -r android_lib_arm64-v8a/caffe/include/. distribution/caffe/include
+cp -r android_lib_arm64-v8a/gflags/include/. distribution/caffe/include
+cp -r android_lib_arm64-v8a/glog/include/. distribution/caffe/include
+cp -r android_lib_arm64-v8a/protobuf/include/. distribution/caffe/include
+cp -r opencv/include/. distribution/caffe/include
+rm distribution/caffe/include/CMakeLists.txt
+
+# Copy output .so files to single distribution directory
+mkdir -p distribution/caffe/lib/arm64-v8a
+cp android_lib_arm64-v8a/caffe/lib/libcaffe.so distribution/caffe/lib/arm64-v8a
+cp android_lib_arm64-v8a/caffe/lib/libcaffe_jni.so distribution/caffe/lib/arm64-v8a
+
+mkdir -p distribution/caffe/lib/x86_64
+cp android_lib_x86_64/caffe/lib/libcaffe.so distribution/caffe/lib/x86_64
+cp android_lib_x86_64/caffe/lib/libcaffe_jni.so distribution/caffe/lib/x86_64
+
+mkdir -p distribution/caffe/lib/armeabi
+cp android_lib_armeabi/caffe/lib/libcaffe.so distribution/caffe/lib/armeabi
+cp android_lib_armeabi/caffe/lib/libcaffe_jni.so distribution/caffe/lib/armeabi
+
+echo ""
+echo "Android Caffe Build Completed. Get it from distribution directory"
+echo "Copy distribution directory to your android project and give its path in CMakeList"
+echo ""
\ No newline at end of file