scripts/Config

   1 #
   2 # hdw-linux Config script
   3 #
   4 # author:       hackbard
   5 #
   6 # script initializing environment
   7 #
   8
   9 hdw_status=""
  10
  11 while [ "$1" ] ; do
  12         case "$1" in
  13                 -stage)         hdw_status="$2"         ; shift 2 ;;
  14                 *)              echo
  15                                 echo "Usage:"
  16                                 echo
  17                                 echo " ./scripts/Config -stage <stagelevel>"
  18                                 echo ;;
  19         esac
  20 done
  21
  22 if [ -z "$hdw_status" ]; then
  23         echo "something went wrong. stage needs to be specified."
  24         exit 1
  25 fi
  26
  27 # execute  Config file & create symlink to doc/README + doc/BUILD
  28 if [ -f ./Config ] ; then
  29         hdw_home_dir=`pwd`
  30         echo "setting hdw_home_dir to $hdw_home_dir"
  31         echo "reading ./Config file"
  32         . ./Config
  33         [ ! -s ./README ] && ln -s ./doc/README .
  34         [ ! -s ./BUILD ] && ln -s ./doc/BUILD .
  35         [ ! -s ./INSTALL ] && ln -s ./doc/INSTALL .
  36         [ ! -s ./License ] && ln -s ./doc/License .
  37 else
  38         echo "./Config file not found. are you in correct directory?"
  39         exit 1
  40 fi
  41
  42 # define the stage 0/1 prefix to use
  43 # default "static", though no static linking is done anymore in stage1
  44 if [ -z "$hdw_stage1_prefix" ] ; then
  45          s1_prefix="static" # default
  46 else
  47         s1_prefix=$hdw_stage1_prefix
  48 fi
  49
  50 # lets see what root is:
  51 [ "$hdw_status" = "2" -o "$hdw_status" = "3" ] && root=""
  52 if [ "$hdw_status" -lt 2 -o "$hdw_crossbuild" != "0" ] ; then
  53         if [ -z "$hdw_build_dir" ] ; then
  54                 echo "please set hdw_build_dir in ./Config!"
  55                 exit 1
  56         elif [ ! -d $hdw_build_dir ] ; then
  57                 echo "please set _existing_ hdw_build_dir in ./Config"
  58                 exit 1
  59         else
  60                 echo "hdw_build_dir variable set to $hdw_build_dir"
  61                 root="$hdw_build_dir"
  62         fi
  63 fi
  64
  65 # setting up general environment, now that we know $root
  66 set +h
  67 umask 022
  68 export LC_ALL=POSIX
  69 [ "$hdw_status" -lt "2" ] && export PATH="$root/${s1_prefix}/bin:$PATH"
  70
  71 # let's do optimization and care for crossbuilds
  72 if [ ! -z "`uname --version | grep sh-utils`" ] ; then
  73         hdw_arch_build="`uname -m -p | tr " " -`-linux-gnu"
  74 else
  75         hdw_arch_build="`uname -m`-unknown-linux-gnu"
  76 fi
  77 case "$hdw_arch" in
  78         ia32)   if [ -z "$hdw_arch_opt" ] ; then
  79                         hdw_arch_target="i386-pc-linux-gnu"
  80                 elif [ ! -z "$hdw_arch_opt" ] ; then
  81                         hdw_arch_target="${hdw_arch_opt}-pc-linux-gnu"
  82                         hdw_cflags="-march=${hdw_arch_opt}"
  83                 fi
  84                 hdw_arch_build=${hdw_arch_build//unknown/pc} ;;
  85         sparc*) if [ -z "$hdw_arch_opt" ] ; then
  86                         hdw_arch_target="$hdw_arch-unknown-linux-gnu"
  87                 else
  88                         # hack this! :)
  89                         echo "pls hack sparc* opt. options and submit :)"
  90                         echo "no optimization used!"
  91                         hdw_arch_target="$hdw_arch-unknown-linux-gnu"
  92                         hdw_cflags="-march={hdw_arch_opt}"
  93                 fi ;;
  94         ppc)
  95                 hdw_arch_target="powerpc-unknown-linux-gnu"
  96                 [ ! -z "$hdw_arch_opt" ] && hdw_cflags="-march=${hdw_arch_opt}"
  97                 hdw_arch_build=${hdw_arch_build//ppc/powerpc} ;;
  98         *)      echo "not supported yet"
  99                 echo "please choose a valid optimization and build platform."
 100                 exit 1 ;;
 101 esac
 102 # -O flag
 103 [ ! -z "$hdw_opt" ] && hdw_cflags="-O${hdw_opt} $hdw_cflags"
 104
 105 # build tools to use
 106 hdw_arch_prefix=""
 107 if [ "$hdw_crossbuild" != "0" ] ; then
 108         hdw_arch_prefix="$hdw_arch_target-"
 109         if [ "$hdw_real_build" ] ; then
 110                 if [ "$hdw_arch" = "ia32" ] ; then
 111                 hdw_arch_build=${hdw_arch_build//$hdw_arch_opt/$hdw_real_build}
 112                 else
 113                 hdw_arch_build=${hdw_arch_build//$hdw_arch/$hdw_real_build}
 114                 fi
 115         fi
 116 fi
 117 # test: actually we always use the compilers for target
 118 # hdw_arch_prefix="$hdw_arch_target-"
 119
 120 # resume ...
 121 echo "hdw_arch_target variable set to $hdw_arch_target"
 122 echo "hdw_arch_build variable set to $hdw_arch_build"
 123 echo "hdw_cflags variable set to $hdw_cflags"
 124 [ "$hdw_status" = "1" ] && echo "hdw_stage1_prefix set to '$s1_prefix'"
 125
 126 # lets see what we are going to build
 127 if [ -z $hdw_target ] ; then
 128         echo "please set hdw_target in ./Config!"
 129         exit 1
 130 elif [ ! -d ./targets/$hdw_target ] ; then
 131         echo "please set _existing_ hdw_target in ./Config!"
 132         exit 1
 133 else
 134         echo "hdw_target variable set to $hdw_target"
 135 fi
 136