1 #!/bin/bash 2 3 HOST_OS=`uname -s | tr '[:upper:]' '[:lower:]'` 4 if [ "$HOST_OS" != "linux" ] ; then 5 echo "ERROR: The gcc this script points to can only run on linux" 6 exit 1 7 fi 8 9 PROGNAME=`basename $0` 10 11 #PREFIX32=../../gcc/linux-x86/host/i686-linux-glibc2.7-4.4.3/bin/i686-linux # previous version 12 PREFIX32=../../gcc/linux-x86/host/i686-linux-glibc2.7-4.6/bin/i686-linux 13 PREFIX64=../../gcc/linux-x86/host/x86_64-linux-glibc2.7-4.6/bin/x86_64-linux 14 15 options=" ${@} " # sentinel prefix/suffix space to simplify pattern match below 16 17 suffix_m32=${options##* -m32 } # suffix after the last -m32 18 suffix_m64=${options##* -m64 } # suffix after the last -m64 19 20 len_m32=${#suffix_m32} # length of suffix after the last -m32 21 len_m64=${#suffix_m64} # length of suffix after the last -m64 22 23 if [ $len_m32 -ge $len_m64 ] ; then 24 # Choose 64-bit if -m64 only, -m64 appears after -m32, or neither exist (-eq) 25 MY_TOOL=`dirname $0`/${PREFIX64}-${PROGNAME} 26 # Make sure host is running 64-bit OS. 27 # Note that "uname -m" only show host CPU is capable of. Use the following technique 28 # from ndk/build/core/ndk-common.sh instead 29 file -L "$SHELL" | grep -q "x86[_-]64" 30 if [ $? != 0 ]; then 31 # $SHELL is not a 64-bit executable, so assume our userland is too. 32 echo "ERROR: $MY_TOOL only run on 64-bit linux" 33 exit 1 34 fi 35 else 36 # Otherwise, choose 32-bit 37 MY_TOOL=`dirname $0`/${PREFIX32}-${PROGNAME} 38 fi 39 40 $MY_TOOL "$@" 41
