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89a536dd1d
Solution: Update the android build helper to locate readelf binary
included in android ndk.
305 lines
12 KiB
Bash
305 lines
12 KiB
Bash
#!/usr/bin/env bash
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#
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# Copyright (c) 2014, Joe Eli McIlvain
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# 1. Redistributions of source code must retain the above copyright notice,
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# this list of conditions and the following disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# 3. Neither the name of the copyright holder nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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# THE POSSIBILITY OF SUCH DAMAGE.
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#
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###
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#
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# https://github.com/jemc/android_build_helper
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# android_build_helper.sh
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#
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# The following is a helper script for setting up android builds for
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# "native" libraries maintained with an autotools build system.
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# It merely helps to create the proper cross-compile environment.
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# It makes no attempt to wrap the library or make it accessible to Java code;
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# the intention is to make the bare library available to other "native" code.
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#
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# To get the latest version of this script, please download from:
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# https://github.com/jemc/android_build_helper
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#
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# You are free to modify this script, but if you add improvements,
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# please consider submitting a pull request to the aforementioned upstream
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# repository for the benefit of other users.
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#
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# Get directory of current script (if not already set)
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# This directory is also the basis for the build directories the get created.
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if [ -z "$ANDROID_BUILD_DIR" ]; then
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ANDROID_BUILD_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
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fi
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# Set up a variable to hold the global failure reasons, separated by newlines
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# (Empty string indicates no failure)
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ANDROID_BUILD_FAIL=()
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function android_build_check_fail {
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if [ ! ${#ANDROID_BUILD_FAIL[@]} -eq 0 ]; then
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echo "Android (${TOOLCHAIN_ARCH}) build failed for the following reasons:"
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for reason in "${ANDROID_BUILD_FAIL[@]}"; do
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local formatted_reason=" ${reason}"
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echo "${formatted_reason}"
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done
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exit 1
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fi
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}
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function android_build_set_env {
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BUILD_ARCH=$1
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export TOOLCHAIN_PATH="${ANDROID_NDK_ROOT}/toolchains/llvm/prebuilt/${HOST_PLATFORM}/bin"
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# Set variables for each architecture
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if [ $BUILD_ARCH == "arm" ]; then
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export TOOLCHAIN_HOST="arm-linux-androideabi"
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export TOOLCHAIN_COMP="armv7a-linux-androideabi${MIN_SDK_VERSION}"
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export TOOLCHAIN_ABI="armeabi-v7a"
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export TOOLCHAIN_ARCH="arm"
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elif [ $BUILD_ARCH == "x86" ]; then
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export TOOLCHAIN_HOST="i686-linux-android"
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export TOOLCHAIN_COMP="i686-linux-android${MIN_SDK_VERSION}"
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export TOOLCHAIN_ABI="x86"
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export TOOLCHAIN_ARCH="x86"
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elif [ $BUILD_ARCH == "arm64" ]; then
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export TOOLCHAIN_HOST="aarch64-linux-android"
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export TOOLCHAIN_COMP="aarch64-linux-android${MIN_SDK_VERSION}"
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export TOOLCHAIN_ABI="arm64-v8a"
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export TOOLCHAIN_ARCH="arm64"
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elif [ $BUILD_ARCH == "x86_64" ]; then
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export TOOLCHAIN_HOST="x86_64-linux-android"
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export TOOLCHAIN_COMP="x86_64-linux-android${MIN_SDK_VERSION}"
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export TOOLCHAIN_ABI="x86_64"
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export TOOLCHAIN_ARCH="x86_64"
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fi
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export ANDROID_BUILD_SYSROOT="${ANDROID_NDK_ROOT}/platforms/android-${MIN_SDK_VERSION}/arch-${TOOLCHAIN_ARCH}"
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export ANDROID_BUILD_PREFIX="${ANDROID_BUILD_DIR}/prefix/${TOOLCHAIN_ARCH}"
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}
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function android_build_env {
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##
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# Check that necessary environment variables are set
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if [ -z "$ANDROID_NDK_ROOT" ]; then
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ANDROID_BUILD_FAIL+=("Please set the ANDROID_NDK_ROOT environment variable")
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ANDROID_BUILD_FAIL+=(" (eg. \"/home/user/android/android-ndk-r20\")")
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fi
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if [ -z "$TOOLCHAIN_PATH" ]; then
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ANDROID_BUILD_FAIL+=("Please set the TOOLCHAIN_PATH environment variable")
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ANDROID_BUILD_FAIL+=(" (eg. \"/home/user/android/android-ndk-r20/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin\")")
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fi
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if [ -z "$TOOLCHAIN_HOST" ]; then
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ANDROID_BUILD_FAIL+=("Please set the TOOLCHAIN_HOST environment variable")
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ANDROID_BUILD_FAIL+=(" (eg. \"arm-linux-androideabi\")")
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fi
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if [ -z "$TOOLCHAIN_COMP" ]; then
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ANDROID_BUILD_FAIL+=("Please set the TOOLCHAIN_COMP environment variable")
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ANDROID_BUILD_FAIL+=(" (eg. \"armv7a-linux-androideabi\")")
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fi
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if [ -z "$TOOLCHAIN_ABI" ]; then
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ANDROID_BUILD_FAIL+=("Please set the TOOLCHAIN_ABI environment variable")
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ANDROID_BUILD_FAIL+=(" (eg. \"armeabi-v7a\")")
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fi
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if [ -z "$TOOLCHAIN_ARCH" ]; then
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ANDROID_BUILD_FAIL+=("Please set the TOOLCHAIN_ARCH environment variable")
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ANDROID_BUILD_FAIL+=(" (eg. \"arm\")")
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fi
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android_build_check_fail
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##
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# Check that directories given by environment variables exist
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if [ ! -d "$ANDROID_NDK_ROOT" ]; then
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ANDROID_BUILD_FAIL+=("The ANDROID_NDK_ROOT directory does not exist")
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ANDROID_BUILD_FAIL+=(" ${ANDROID_NDK_ROOT}")
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fi
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if [ ! -d "$TOOLCHAIN_PATH" ]; then
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ANDROID_BUILD_FAIL+=("The TOOLCHAIN_PATH directory does not exist")
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ANDROID_BUILD_FAIL+=(" ${TOOLCHAIN_PATH}")
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fi
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##
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# Set up some local variables and check them
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if [ ! -d "$ANDROID_BUILD_SYSROOT" ]; then
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ANDROID_BUILD_FAIL+=("The ANDROID_BUILD_SYSROOT directory does not exist")
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ANDROID_BUILD_FAIL+=(" ${ANDROID_BUILD_SYSROOT}")
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fi
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mkdir -p "$ANDROID_BUILD_PREFIX" || {
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ANDROID_BUILD_FAIL+=("Failed to make ANDROID_BUILD_PREFIX directory")
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ANDROID_BUILD_FAIL+=(" ${ANDROID_BUILD_PREFIX}")
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}
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android_build_check_fail
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}
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function _android_build_opts_process_binaries {
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local TOOLCHAIN="${ANDROID_NDK_ROOT}/toolchains/llvm/prebuilt/${HOST_PLATFORM}"
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local CC="${TOOLCHAIN_PATH}/${TOOLCHAIN_COMP}-clang"
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local CXX="${TOOLCHAIN_PATH}/${TOOLCHAIN_COMP}-clang++"
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local LD="${TOOLCHAIN_PATH}/${TOOLCHAIN_HOST}-ld"
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local AS="${TOOLCHAIN_PATH}/${TOOLCHAIN_HOST}-as"
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local AR="${TOOLCHAIN_PATH}/${TOOLCHAIN_HOST}-ar"
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local RANLIB="${TOOLCHAIN_PATH}/${TOOLCHAIN_HOST}-ranlib"
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local STRIP="${TOOLCHAIN_PATH}/${TOOLCHAIN_HOST}-strip"
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if [ ! -x "${CC}" ]; then
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ANDROID_BUILD_FAIL+=("The CC binary does not exist or is not executable")
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ANDROID_BUILD_FAIL+=(" ${CC}")
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fi
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if [ ! -x "${CXX}" ]; then
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ANDROID_BUILD_FAIL+=("The CXX binary does not exist or is not executable")
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ANDROID_BUILD_FAIL+=(" ${CXX}")
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fi
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if [ ! -x "${LD}" ]; then
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ANDROID_BUILD_FAIL+=("The LD binary does not exist or is not executable")
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ANDROID_BUILD_FAIL+=(" ${LD}")
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fi
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if [ ! -x "${AS}" ]; then
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ANDROID_BUILD_FAIL+=("The AS binary does not exist or is not executable")
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ANDROID_BUILD_FAIL+=(" ${AS}")
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fi
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if [ ! -x "${AR}" ]; then
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ANDROID_BUILD_FAIL+=("The AR binary does not exist or is not executable")
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ANDROID_BUILD_FAIL+=(" ${AR}")
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fi
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if [ ! -x "${RANLIB}" ]; then
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ANDROID_BUILD_FAIL+=("The RANLIB binary does not exist or is not executable")
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ANDROID_BUILD_FAIL+=(" ${RANLIB}")
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fi
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if [ ! -x "${STRIP}" ]; then
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ANDROID_BUILD_FAIL+=("The STRIP binary does not exist or is not executable")
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ANDROID_BUILD_FAIL+=(" ${STRIP}")
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fi
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ANDROID_BUILD_OPTS+=("TOOLCHAIN=${TOOLCHAIN}")
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ANDROID_BUILD_OPTS+=("CC=${CC}")
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ANDROID_BUILD_OPTS+=("CXX=${CXX}")
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ANDROID_BUILD_OPTS+=("LD=${LD}")
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ANDROID_BUILD_OPTS+=("AS=${AS}")
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ANDROID_BUILD_OPTS+=("AR=${AR}")
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ANDROID_BUILD_OPTS+=("RANLIB=${RANLIB}")
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ANDROID_BUILD_OPTS+=("STRIP=${STRIP}")
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android_build_check_fail
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}
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# Set the ANDROID_BUILD_OPTS variable to a bash array of configure options
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function android_build_opts {
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ANDROID_BUILD_OPTS=()
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_android_build_opts_process_binaries
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local LIBS="-lc -lgcc -ldl -lm -llog -lc++_shared"
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local LDFLAGS="-L${ANDROID_BUILD_PREFIX}/lib"
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LDFLAGS+=" -L${ANDROID_NDK_ROOT}/sources/cxx-stl/llvm-libc++/libs/${TOOLCHAIN_ABI}"
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CFLAGS+=" -D_GNU_SOURCE -D_REENTRANT -D_THREAD_SAFE"
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CPPFLAGS+=" -I${ANDROID_BUILD_PREFIX}/include"
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ANDROID_BUILD_OPTS+=("CFLAGS=${CFLAGS} ${ANDROID_BUILD_EXTRA_CFLAGS}")
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ANDROID_BUILD_OPTS+=("CPPFLAGS=${CPPFLAGS} ${ANDROID_BUILD_EXTRA_CPPFLAGS}")
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ANDROID_BUILD_OPTS+=("CXXFLAGS=${CXXFLAGS} ${ANDROID_BUILD_EXTRA_CXXFLAGS}")
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ANDROID_BUILD_OPTS+=("LDFLAGS=${LDFLAGS} ${ANDROID_BUILD_EXTRA_LDFLAGS}")
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ANDROID_BUILD_OPTS+=("LIBS=${LIBS} ${ANDROID_BUILD_EXTRA_LIBS}")
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ANDROID_BUILD_OPTS+=("PKG_CONFIG_LIBDIR=${ANDROID_NDK_ROOT}/prebuilt/${HOST_PLATFORM}/lib/pkgconfig")
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ANDROID_BUILD_OPTS+=("PKG_CONFIG_PATH=${ANDROID_BUILD_PREFIX}/lib/pkgconfig")
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ANDROID_BUILD_OPTS+=("PKG_CONFIG_SYSROOT_DIR=${ANDROID_BUILD_SYSROOT}")
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ANDROID_BUILD_OPTS+=("PKG_CONFIG_DIR=")
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ANDROID_BUILD_OPTS+=("--with-sysroot=${ANDROID_BUILD_SYSROOT}")
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ANDROID_BUILD_OPTS+=("--host=${TOOLCHAIN_HOST}")
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ANDROID_BUILD_OPTS+=("--prefix=${ANDROID_BUILD_PREFIX}")
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android_build_check_fail
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}
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# Parse readelf output to verify the correct linking of libraries.
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# The first argument should be the soname of the newly built library.
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# The rest of the arguments should be the sonames of dependencies.
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# All sonames should be unversioned for android (no trailing numbers).
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function android_build_verify_so {
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local soname="$1"
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shift # Get rid of first argument - the rest represent dependencies
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local sofile="${ANDROID_BUILD_PREFIX}/lib/${soname}"
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if [ ! -f "${sofile}" ]; then
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ANDROID_BUILD_FAIL+=("Found no library named ${soname}")
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ANDROID_BUILD_FAIL+=(" ${sofile}")
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fi
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android_build_check_fail
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local READELF="${TOOLCHAIN_PATH}/${TOOLCHAIN_HOST}-readelf"
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if command -v ${READELF} >/dev/null 2>&1 ; then
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local readelf_bin="${READELF}"
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elif command -v readelf >/dev/null 2>&1 ; then
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local readelf_bin="readelf"
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elif command -v greadelf >/dev/null 2>&1 ; then
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local readelf_bin="greadelf"
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else
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ANDROID_BUILD_FAIL+=("Could not find any of readelf, greadelf, or ${READELF}")
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fi
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android_build_check_fail
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local elfoutput=$(LC_ALL=C $readelf_bin -d ${sofile})
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local soname_regexp='soname: \[([[:alnum:]\.]+)\]'
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if [[ $elfoutput =~ $soname_regexp ]]; then
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local parsed_soname="${BASH_REMATCH[1]}"
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if [ "${parsed_soname}" != "${soname}" ]; then
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ANDROID_BUILD_FAIL+=("Actual soname of library ${soname} is incorrect (or versioned):")
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ANDROID_BUILD_FAIL+=(" ${parsed_soname}")
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fi
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else
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ANDROID_BUILD_FAIL+=("Failed to meaningfully parse readelf output for library ${soname}:")
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ANDROID_BUILD_FAIL+=(" ${elfoutput}")
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fi
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for dep_soname do
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if [[ $elfoutput != *"library: [${dep_soname}]"* ]]; then
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ANDROID_BUILD_FAIL+=("Library ${soname} was expected to be linked to library with soname:")
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ANDROID_BUILD_FAIL+=(" ${dep_soname}")
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fi
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done
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android_build_check_fail
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}
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