initial checkin of hdw-linux devel cvs repository

[hdw-linux/hdw-linux.git] / scripts / Config

diff --git a/scripts/Config b/scripts/Config
new file mode 100755 (executable)
index 0000000..b059d61
--- /dev/null
+++ b/scripts/Config
@@ -0,0 +1,136 @@
+#
+# hdw-linux Config script
+#
+# author:      hackbard
+#
+# script initializing environment
+# 
+
+hdw_status=""
+
+while [ "$1" ] ; do
+       case "$1" in
+               -stage)         hdw_status="$2"         ; shift 2 ;;
+               *)              echo 
+                               echo "Usage:"
+                               echo
+                               echo " ./scripts/Config -stage <stagelevel>"
+                               echo ;;
+       esac
+done
+
+if [ -z "$hdw_status" ]; then
+       echo "something went wrong. stage needs to be specified."
+       exit 1
+fi
+
+# execute  Config file & create symlink to doc/README + doc/BUILD
+if [ -f ./Config ] ; then
+       hdw_home_dir=`pwd`
+       echo "setting hdw_home_dir to $hdw_home_dir"
+       echo "reading ./Config file"
+       . ./Config
+       [ ! -s ./README ] && ln -s ./doc/README .
+       [ ! -s ./BUILD ] && ln -s ./doc/BUILD .
+       [ ! -s ./INSTALL ] && ln -s ./doc/INSTALL .
+       [ ! -s ./License ] && ln -s ./doc/License .
+else
+       echo "./Config file not found. are you in correct directory?"
+       exit 1
+fi
+
+# define the stage 0/1 prefix to use
+# default "static", though no static linking is done anymore in stage1
+if [ -z "$hdw_stage1_prefix" ] ; then
+        s1_prefix="static" # default
+else
+       s1_prefix=$hdw_stage1_prefix
+fi
+
+# lets see what root is:
+[ "$hdw_status" = "2" -o "$hdw_status" = "3" ] && root=""
+if [ "$hdw_status" -lt 2 -o "$hdw_crossbuild" != "0" ] ; then
+       if [ -z "$hdw_build_dir" ] ; then
+               echo "please set hdw_build_dir in ./Config!"
+               exit 1
+       elif [ ! -d $hdw_build_dir ] ; then
+               echo "please set _existing_ hdw_build_dir in ./Config"
+               exit 1
+       else
+               echo "hdw_build_dir variable set to $hdw_build_dir"
+               root="$hdw_build_dir"
+       fi
+fi
+
+# setting up general environment, now that we know $root
+set +h
+umask 022
+export LC_ALL=POSIX
+[ "$hdw_status" -lt "2" ] && export PATH="$root/${s1_prefix}/bin:$PATH"
+
+# let's do optimization and care for crossbuilds
+if [ ! -z "`uname --version | grep sh-utils`" ] ; then
+       hdw_arch_build="`uname -m -p | tr " " -`-linux-gnu"
+else
+       hdw_arch_build="`uname -m`-unknown-linux-gnu"
+fi
+case "$hdw_arch" in
+       ia32)   if [ -z "$hdw_arch_opt" ] ; then
+                       hdw_arch_target="i386-pc-linux-gnu"
+               elif [ ! -z "$hdw_arch_opt" ] ; then
+                       hdw_arch_target="${hdw_arch_opt}-pc-linux-gnu"
+                       hdw_cflags="-march=${hdw_arch_opt}"
+               fi
+               hdw_arch_build=${hdw_arch_build//unknown/pc} ;;
+       sparc*) if [ -z "$hdw_arch_opt" ] ; then
+                       hdw_arch_target="$hdw_arch-unknown-linux-gnu"
+               else
+                       # hack this! :)
+                       echo "pls hack sparc* opt. options and submit :)"
+                       echo "no optimization used!"
+                       hdw_arch_target="$hdw_arch-unknown-linux-gnu"
+                       hdw_cflags="-march={hdw_arch_opt}"
+               fi ;;
+       ppc)
+               hdw_arch_target="powerpc-unknown-linux-gnu"
+               [ ! -z "$hdw_arch_opt" ] && hdw_cflags="-march=${hdw_arch_opt}"
+               hdw_arch_build=${hdw_arch_build//ppc/powerpc} ;;
+       *)      echo "not supported yet"
+               echo "please choose a valid optimization and build platform."
+               exit 1 ;;
+esac
+# -O flag
+[ ! -z "$hdw_opt" ] && hdw_cflags="-O${hdw_opt} $hdw_cflags"
+
+# build tools to use
+hdw_arch_prefix=""
+if [ "$hdw_crossbuild" != "0" ] ; then
+       hdw_arch_prefix="$hdw_arch_target-"
+       if [ "$hdw_real_build" ] ; then
+               if [ "$hdw_arch" = "ia32" ] ; then
+               hdw_arch_build=${hdw_arch_build//$hdw_arch_opt/$hdw_real_build}
+               else
+               hdw_arch_build=${hdw_arch_build//$hdw_arch/$hdw_real_build}
+               fi
+       fi
+fi
+# test: actually we always use the compilers for target
+# hdw_arch_prefix="$hdw_arch_target-"
+
+# resume ...
+echo "hdw_arch_target variable set to $hdw_arch_target"
+echo "hdw_arch_build variable set to $hdw_arch_build"
+echo "hdw_cflags variable set to $hdw_cflags"
+[ "$hdw_status" = "1" ] && echo "hdw_stage1_prefix set to '$s1_prefix'"
+
+# lets see what we are going to build
+if [ -z $hdw_target ] ; then 
+       echo "please set hdw_target in ./Config!"
+       exit 1
+elif [ ! -d ./targets/$hdw_target ] ; then 
+       echo "please set _existing_ hdw_target in ./Config!"
+       exit 1
+else
+       echo "hdw_target variable set to $hdw_target"
+fi
+