recursively calculate shared library dependencies and secondary libs then generate.inspired -> cawka/android-shared-lib-dependencies.sh

yocto-shared-lib-dependencies

# Color defines

RED='\033[0;31m'
NC='\033[0m' # No Color
# Regular Colors
Black='\033[0;30m'        # Black
Red='\033[0;31m'          # Red
Green='\033[0;32m'        # Green
Yellow='\033[0;33m'       # Yellow
Blue='\033[0;34m'         # Blue
Purple='\033[0;35m'       # Purple
Cyan='\033[0;36m'         # Cyan
White='\033[0;37m'        # White

# Set correct path to readelf binary in Yocto toolchain
READELF=/opt/poky/4.0.4/sysroots/x86_64-pokysdk-linux/usr/bin/aarch64-poky-linux-musl/aarch64-poky-linux-musl-readelf
SYSROOT=/opt/poky/4.0.4/sysroots/cortexa72-poky-linux-musl/usr/lib/

# List libraries that exist in /system/lib
STANDARD_LIBS=(c dl m stdc++ log z)
declare -A DEPS

echo $SYSROOT

has() {
    local p=$1
    echo p
    shift
    local x
    for x in "$@"; do
        [[ "${x}" == "${p}" ]] && return 0
    done
    return 1
}

LIBS=()

findSecondaryDependencies() {
        
    local lib=$1
    # if [ ! -f "lib$lib.so.*" ]; then
    #     return
    # fi

    local i
    for i in `$READELF -d $lib | grep NEEDED | sed -e "s/.*\[//g" | sed -e "s/\].*$//g" | xargs`; do
        if has $i ${STANDARD_LIBS[*]}; then
            continue
        fi
        
        findSecondaryDependencies $i

        if has $i ${LIBS[*]}; then
            continue
        fi
        LIBS+=($i)
    done

    if has $lib ${LIBS[*]}; then
        continue
    fi
    if [ ! -f "lib$lib.so.*" ]; then
        return
    fi
    LIBS+=($lib)
}

findDependencies() {
    local lib=$1
    local i
    for i in `$READELF -d $lib | grep NEEDED | sed -e "s/.*\[//g" | sed -e "s/\].*$//g" | xargs`; do
        if has $i ${STANDARD_LIBS[*]}; then
            continue
        fi
        
        findSecondaryDependencies $i

        if has $i ${LIBS[*]}; then
            continue
        fi
        echo "----------------- $i"
        LIBS+=($i)
    done
}

findDependencies $1

for lib in ${LIBS[*]}; do
    echo $SYSROOT$lib
    findSecondaryDependencies $SYSROOT$lib
done    
# x $1
echo $1

for lib in ${LIBS[*]}; do
    echo -e "[$1] dependent -> ${RED}(\"$lib\")${NC}"
done

mkdir -p dependencies
pushd dependencies
for lib in ${LIBS[*]}; do
    echo -e "copied lib: (${Green}(\"$lib\")${NC})"
    find /opt/poky/ -iname "$lib" -exec cp "{}" .  \;
done
popd
echo -e "(${Cyan} copied all deps ${NC})"