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Diffstat (limited to 'scripts/magic_gds.sh')
| -rwxr-xr-x | scripts/magic_gds.sh | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/scripts/magic_gds.sh b/scripts/magic_gds.sh new file mode 100755 index 0000000..5a1de27 --- /dev/null +++ b/scripts/magic_gds.sh @@ -0,0 +1,194 @@ +#!/usr/bin/tcsh -f +#---------------------------------------------------------- +# GDSII output generating script using magic +#---------------------------------------------------------- +# Tim Edwards, 4/23/18, for Open Circuit Design +#---------------------------------------------------------- + +if ($#argv < 2) then + echo Usage: magic_gds.sh [options] <project_path> <source_name> + exit 1 +endif + +# Split out options from the main arguments +set argline=(`getopt "" $argv[1-]`) + +set options=`echo "$argline" | awk 'BEGIN {FS = "-- "} END {print $1}'` +set cmdargs=`echo "$argline" | awk 'BEGIN {FS = "-- "} END {print $2}'` +set argc=`echo $cmdargs | wc -w` + +if ($argc >= 2) then + set argv1=`echo $cmdargs | cut -d' ' -f1` + set argv2=`echo $cmdargs | cut -d' ' -f2` +else + echo Usage: magic_gds.sh [options] <project_path> <source_name> + echo where + echo <project_path> is the name of the project directory containing + echo a file called qflow_vars.sh. + echo <source_name> is the root name of the verilog file + exit 1 +endif + +set projectpath=$argv1 +set sourcename=$argv2 +set rootname=${sourcename:h} + +# This script is called with the first argument <project_path>, which should +# have file "qflow_vars.sh". Get all of our standard variable definitions +# from the qflow_vars.sh file. + +if (! -f ${projectpath}/qflow_vars.sh ) then + echo "Error: Cannot find file qflow_vars.sh in path ${projectpath}" + exit 1 +endif + +source ${projectpath}/qflow_vars.sh +source ${techdir}/${techname}.sh +cd ${projectpath} +if (-f project_vars.sh) then + source project_vars.sh +endif + +if (! ${?gdsii_options} ) then + set gdsii_options = ${options} +endif + +set gengdsfile="${layoutdir}/generate_gds_${rootname}.tcl" + +if (!($?logdir)) then + set logdir=${projectpath}/log +endif +mkdir -p ${logdir} +set lastlog=${logdir}/drc.log +set synthlog=${logdir}/gdsii.log +rm -f ${synthlog} >& /dev/null +touch ${synthlog} +set date=`date` +echo "Qflow gdsii logfile created on $date" > ${synthlog} + +# Check if last line of drc log file says "error condition" +if ( ! -f ${lastlog} ) then + set lastlog=${logdir}/lvs.log +endif +if ( ! -f ${lastlog} ) then + echo "Warning: No DRC or LVS logfiles found." +else + set errcond = `tail -1 ${lastlog} | grep "error condition" | wc -l` + if ( ${errcond} == 1 ) then + echo "Synthesis flow stopped on error condition. GDSII generation" + echo "will not proceed until error condition is cleared." + exit 1 + endif +endif + +# Does variable "gdsfile" exist? + +if (! ${?gdsfile} || ( ${?gdsfile} && ( ${gdsfile} == "" ) ) ) then + echo "GDS generation failure: No gdsfile variable set in technology setup script." \ + |& tee -a ${synthlog} + echo "Premature exit." |& tee -a ${synthlog} + echo "Synthesis flow stopped due to error condition." >> ${synthlog} + exit 1 +endif + +# Prepend techdir to each gdsfile unless gdsfile begins with "/" +set gdspath="" +foreach f (${gdsfile}) + set abspath=`echo ${f} | cut -c1` + if ( "${abspath}" == "/" ) then + set p=${gdsfile} + else + set p=${techdir}/${gdsfile} + endif + set gdspath="${gdspath} $p" +end + +#---------------------------------------------------------- +# Done with initialization +#---------------------------------------------------------- + +cd ${layoutdir} + +#------------------------------------------------------------------ +# Determine the version number and availability of scripting +#------------------------------------------------------------------ + +set version=`${bindir}/magic --version` +set major=`echo $version | cut -d. -f1` +set minor=`echo $version | cut -d. -f2` +set subv=`echo $version | cut -d. -f3` + +#------------------------------------------------------------------ +# Generate script for input to magic. +#------------------------------------------------------------------ + + +cat > ${gengdsfile} << EOF +drc off +box 0 0 0 0 +gds readonly true +gds rescale false +EOF + +# Usually "gdsfile" is set to one GDS file for the standard cell set +# but it can be a space-separated list of GDS files to read. This +# is set by reading the .sh file. + +foreach gfile ( ${gdspath} ) +cat >> ${gengdsfile} << EOF +gds read $gfile +EOF +end + +# NOTE: "*hier write disable" and "*array write disable" prevent +# magic from doing an exhaustive search on GDS layer interactions +# between standard cells. This is disabled on the assumption that +# the standard cells are properly designed and do not generate DRC +# spacing errors when abutted. The standard cells will be abstract +# views, anyway, so only a few layers like metal1 are represented. + +cat >> ${gengdsfile} << EOF +load $rootname +select top cell +expand +cif *hier write disable +cif *array write disable +gds write $rootname +quit +EOF + +#------------------------------------------------------------------ +# Run magic in batch mode. +#------------------------------------------------------------------ + +echo "Running magic $version" +echo "magic -dnull -noconsole ${gdsii_options} ${gengdsfile}" |& tee -a ${synthlog} +${bindir}/magic -dnull -noconsole ${gdsii_options} ${gengdsfile} |& tee -a ${synthlog} + +set errcond = $status +if ( ${errcond} != 0 ) then + echo "magic failed with exit status ${errcond}" |& tee -a ${synthlog} + echo "Premature exit." |& tee -a ${synthlog} + echo "Synthesis flow stopped on error condition." >>& ${synthlog} + exit 1 +endif + +#--------------------------------------------------------------------- +# Spot check: Did magic produce file ${rootname}.gds? +#--------------------------------------------------------------------- + +if ( ! -f ${rootname}.gds || ( -M ${rootname}.gds < -M ${rootname}.def )) then + echo "magic failure: No file ${rootname}.gds." |& tee -a ${synthlog} + echo "Premature exit." |& tee -a ${synthlog} + echo "Synthesis flow stopped due to error condition." >> ${synthlog} + exit 1 +endif + +#------------------------------------------------------------ +# Done! +#------------------------------------------------------------ + +set endtime = `date` +echo "GDS generating script ended on $endtime" >> $synthlog + +exit 0 |