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ffmpeg-android-build/scripts/export-build-variables.sh

99 lines
3.4 KiB

#!/usr/bin/env bash
function max() {
[ $1 -ge $2 ] && echo "$1" || echo "$2"
}
export ANDROID_ABI=$1
if [ $ANDROID_ABI = "arm64-v8a" ] || [ $ANDROID_ABI = "x86_64" ] ; then
# For 64bit we use value not less than 21
export ANDROID_PLATFORM=$(max ${DESIRED_ANDROID_API_LEVEL} 21)
else
export ANDROID_PLATFORM=${DESIRED_ANDROID_API_LEVEL}
fi
export TOOLCHAIN_PATH=${ANDROID_NDK_HOME}/toolchains/llvm/prebuilt/${HOST_TAG}
export SYSROOT_PATH=${TOOLCHAIN_PATH}/sysroot
TARGET_TRIPLE_MACHINE_CC=
CPU_FAMILY=
export TARGET_TRIPLE_OS="android"
case $ANDROID_ABI in
armeabi-v7a)
#cc armv7a-linux-androideabi16-clang
#binutils arm -linux-androideabi -ld
export TARGET_TRIPLE_MACHINE_BINUTILS=arm
TARGET_TRIPLE_MACHINE_CC=armv7a
export TARGET_TRIPLE_OS=androideabi
;;
arm64-v8a)
#cc aarch64-linux-android21-clang
#binutils aarch64-linux-android -ld
export TARGET_TRIPLE_MACHINE_BINUTILS=aarch64
;;
x86)
#cc i686-linux-android16-clang
#binutils i686-linux-android -ld
export TARGET_TRIPLE_MACHINE_BINUTILS=i686
CPU_FAMILY=x86
;;
x86_64)
#cc x86_64-linux-android21-clang
#binutils x86_64-linux-android -ld
export TARGET_TRIPLE_MACHINE_BINUTILS=x86_64
;;
esac
# If the cc-specific variable isn't set, we fallback to binutils version
[ -z "${TARGET_TRIPLE_MACHINE_CC}" ] && TARGET_TRIPLE_MACHINE_CC=${TARGET_TRIPLE_MACHINE_BINUTILS}
export TARGET_TRIPLE_MACHINE_CC=$TARGET_TRIPLE_MACHINE_CC
[ -z "${CPU_FAMILY}" ] && CPU_FAMILY=${TARGET_TRIPLE_MACHINE_BINUTILS}
export CPU_FAMILY=$CPU_FAMILY
# Common prefix for ld, as, etc.
if [ $DESIRED_BINUTILS = "gnu" ] ; then
export CROSS_PREFIX=${TARGET_TRIPLE_MACHINE_BINUTILS}-linux-${TARGET_TRIPLE_OS}-
else
export CROSS_PREFIX=llvm-
fi
export CROSS_PREFIX_WITH_PATH=${TOOLCHAIN_PATH}/bin/${CROSS_PREFIX}
# Exporting Binutils paths, if passing just CROSS_PREFIX_WITH_PATH is not enough
# The FAM_ prefix is used to eliminate passing those values implicitly to build systems
export FAM_ADDR2LINE=${CROSS_PREFIX_WITH_PATH}addr2line
export FAM_AR=${CROSS_PREFIX_WITH_PATH}ar
export FAM_NM=${CROSS_PREFIX_WITH_PATH}nm
export FAM_OBJCOPY=${CROSS_PREFIX_WITH_PATH}objcopy
export FAM_OBJDUMP=${CROSS_PREFIX_WITH_PATH}objdump
export FAM_RANLIB=${CROSS_PREFIX_WITH_PATH}ranlib
export FAM_READELF=${CROSS_PREFIX_WITH_PATH}readelf
export FAM_SIZE=${CROSS_PREFIX_WITH_PATH}size
export FAM_STRINGS=${CROSS_PREFIX_WITH_PATH}strings
export FAM_STRIP=${CROSS_PREFIX_WITH_PATH}strip
export TARGET=${TARGET_TRIPLE_MACHINE_CC}-linux-${TARGET_TRIPLE_OS}${ANDROID_PLATFORM}
# The name for compiler is slightly different, so it is defined separatly.
export FAM_CC=${TOOLCHAIN_PATH}/bin/${TARGET}-clang
export FAM_CXX=${FAM_CC}++
export FAM_LD=${FAM_CC}
export FAM_AS=${FAM_CC}
# TODO consider abondaning this strategy of defining the name of the clang wrapper
# in favour of just passing -mstackrealign and -fno-addrsig depending on
# ANDROID_ABI, ANDROID_PLATFORM and NDK's version
# Special variable for the yasm assembler
export FAM_YASM=${TOOLCHAIN_PATH}/bin/yasm
# A variable to which certain dependencies can add -l arguments during build.sh
export FFMPEG_EXTRA_LD_FLAGS=
export INSTALL_DIR=${BUILD_DIR_EXTERNAL}/${ANDROID_ABI}
# Forcing FFmpeg and its dependencies to look for dependencies
# in a specific directory when pkg-config is used
export PKG_CONFIG_LIBDIR=${INSTALL_DIR}/lib/pkgconfig