#!/bin/sh
# Copyright 2013  The Tor Project, Inc.
# See LICENSE for licensing information.

# coverage -- run gcov on the appropriate set of object files to extract
# coverage information.

dst=$1

for fn in src/or/*.c src/common/*.c; do
    BN=`basename $fn`
    DN=`dirname $fn`
    F=`echo $BN | sed -e 's/\.c$//;'`
    GC="${BN}.gcov"
    # Figure out the object file names
    ONS=`echo ${DN}/src_*-${F}.o`
    ONS_WILDCARD_LITERAL="${DN}/src_*-${F}.o"
    # If the wildcard didn't expand, no files
    if [ "$ONS" != "${ONS_WILDCARD_LITERAL}" ]
    then
      for on in $ONS; do
        # We should have a gcno file
        GCNO=`echo $on | sed -e 's/\.o$/\.gcno/;'`
        if [ -e $GCNO ]
        then
          # No need to test for gcda, since gcov assumes no execution
          # if it's absent
          rm -f $GC
          gcov -o $on $fn
          if [ -e $GC ]
          then
            if [ -n $dst ]
            then
              mv $GC $dst/$GC
            fi
          else
            echo "gcov -o $on $fn didn't make a .gcov file"
          fi
        else
          echo "Couldn't find gcno file for $on"
        fi
      done
    else
      echo "No object file found matching source file $fn"
    fi
done