Merge "Save all the detected native shared library backing by mainline modules."

			}

		}

		apisBackedbyOutputFile := android.PathForModuleOut(ctx, a.Name()+"_backing.txt")

		ndkLibraryList := android.PathForSource(ctx, "system/core/rootdir/etc/public.libraries.android.txt")

		rule := android.NewRuleBuilder(pctx, ctx)

		rule.Command().

			Tool(android.PathForSource(ctx, "build/soong/scripts/gen_ndk_backedby_apex.sh")).

			Output(apisBackedbyOutputFile).

			Input(ndkLibraryList).

			Flags(libNames)

		rule.Build("ndk_backedby_list", "Generate API libraries backed by Apex")

		a.apisBackedByModuleFile = apisBackedbyOutputFile

# After the parse function below "dlopen" would be write to the output file.

printHelp() {

    echo "**************************** Usage Instructions ****************************"

    echo "This script is used to generate the Mainline modules backed-by NDK symbols."

    echo "This script is used to generate the native libraries backed by Mainline modules."

    echo ""

    echo "To run this script use: ./gen_ndk_backed_by_apex.sh \$OUTPUT_FILE_PATH \$NDK_LIB_NAME_LIST \$MODULE_LIB1 \$MODULE_LIB2..."

    echo "To run this script use: ./gen_ndk_backed_by_apex.sh \$OUTPUT_FILE_PATH \$MODULE_LIB1 \$MODULE_LIB2..."

    echo "For example: If output write to /backedby.txt then the command would be:"

    echo "./gen_ndk_backed_by_apex.sh /backedby.txt /ndkLibList.txt lib1.so lib2.so"

    echo "./gen_ndk_backed_by_apex.sh /backedby.txt lib1.so lib2.so"

    echo "If the module1 is backing lib1 then the backedby.txt would contains: "

    echo "lib1"

    echo "lib1.so lib2.so"

}

contains() {

  val="$1"

  shift

  for x in "$@"; do

    if [ "$x" = "$val" ]; then

      return 0

    fi

  done

  return 1

}

genBackedByList() {

genAllBackedByList() {

  out="$1"

  shift

  ndk_list="$1"

  shift

  rm -f "$out"

  touch "$out"

  while IFS= read -r line

  do

    soFileName=$(echo "$line" | sed 's/\(.*so\).*/\1/')

    if [[ ! -z "$soFileName" && "$soFileName" != *"#"* ]]

    then

      if contains "$soFileName" "$@"; then

        echo "$soFileName" >> "$out"

      fi

    fi

  done < "$ndk_list"

  echo "$@" >> "$out"

}

if [[ "$1" == "help" ]]

then

  printHelp

elif [[ "$#" -lt 2 ]]

elif [[ "$#" -lt 1 ]]

then

  echo "Wrong argument length. Expecting at least 2 argument representing output path, path to ndk library list, followed by a list of libraries in the Mainline module."

  echo "Wrong argument length. Expecting at least 1 argument representing output path, followed by a list of libraries in the Mainline module."

else

  genBackedByList "$@"

  genAllBackedByList "$@"

fi