#!/bin/sh

CWD=$(pwd)
real_path=$(readlink -f "$0")
CURDIR=$(cd $(dirname $real_path); pwd)
SMARTDNS_BIN=${CURDIR}/smartdns
NEED_CHECK_ARM_CP15=0
INTERPRETER="${CURDIR}/lib/ld-linux.so"

if [ "$NEED_CHECK_ARM_CP15" = "1" ] && [ "$(uname -m)" = "aarch64" ]; then
    # Fix arm cp15_barrier issue when running on aarch64 with 32bit userland
    # sysctl abi.cp15_barrier=2
    cp15_barrier=$(cat /proc/sys/abi/cp15_barrier 2>/dev/null)
    if [ "$cp15_barrier" != "2" ]; then
        sh -c "echo "2" > /proc/sys/abi/cp15_barrier" 2>/dev/null;
        if [ "$?" != "0" ]; then
            echo "Failed to set cp15_barrier to 2, please run 'echo 2 > /proc/sys/abi/cp15_barrier' manually"
            exit 1
        else
            echo "Set cp15_barrier to 2"
        fi
    fi
fi

if [ ! -f ${INTERPRETER} ]; then
    echo "smartdns dynamic loader not found: ${INTERPRETER}"
    exit 1
fi

cd $CURDIR
SMARTDNS_WORKDIR="$CWD" exec "${SMARTDNS_BIN}" $@