mysql-test/mysql-test-run

    reversed gcov to work the old way - the worst thing that can happen 
    if slave and master execute the same code at the same time is that
    we get a lesser  count on the code branch execution, but in any case,
    it will be at least counted once, which is really all we care.
    
    Besides, the source tracking is most likely not thread safe, but this
    is ok for the same reason.

mysql-test/mysql-test-run

@@ -57,11 +57,8 @@ TIMEFILE="$MYSQL_TEST_DIR/var/tmp/mysqltest-time"
 DASHBLANK="----	----	-------"
 MYSQLD_SRC_DIRS="strings mysys include extra regex isam merge myisam \
  myisammrg heap sql"
-GCOV_MASTER_MSG=/tmp/mysqld-master-gcov.out #gcov output
-GCOV_MASTER_ERR=/tmp/mysqld-master-gcov.err  
-GCOV_SLAVE_MSG=/tmp/mysqld-slave-gcov.out #gcov output
-GCOV_SLAVE_ERR=/tmp/mysqld-slave-gcov.err  
-GCOV_SLAVE_SRC=/tmp/mysqld-slave-src/
+GCOV_MSG=/tmp/mysqld-gcov.out #gcov output
+GCOV_ERR=/tmp/mysqld-gcov.err  
 
 [ -d $MY_TMP_DIR ]  || mkdir -p $MY_TMP_DIR
 
@@ -130,6 +127,7 @@ else
  INSTALL_DB="../scripts/install_test_db -bin"
 fi
 
+SLAVE_MYSQLD=$MYSQLD #this will be changed later if we are doing gcov
 
 
 MYSQL_TEST="$MYSQL_TEST --socket=$MASTER_MYSOCK --database=$DB --user=$DBUSER --password=$DBPASSWD --silent"
@@ -279,38 +277,21 @@ mysql_install_db () {
 gcov_prepare () {
     $FIND $BASEDIR -name \*.gcov \
     -or -name \*.da | $XARGS $RM
-    $RM -rf $GCOV_SLAVE_SRC
-    for d in $MYSQLD_SRC_DIRS; do
-	cd $BASEDIR/$d
-        mkdir -p $GCOV_SLAVE_SRC/$d  
-	for f in *.h *.cc *.c; do
-	  cp $f $GCOV_SLAVE_SRC/$d
-	done
-	cd $MYSQL_TEST_DIR
-   done    
 }
 
 gcov_collect () {
     $ECHO "Collecting source coverage info..."
-    [ -f $GCOV_MASTER_MSG ] && $RM $GCOV_MASTER_MSG
-    [ -f $GCOV_MASTER_ERR ] && $RM $GCOV_MASTER_ERR
-    [ -f $GCOV_SLAVE_MSG ] && $RM $GCOV_SLAVE_MSG
-    [ -f $GCOV_SLAVE_ERR ] && $RM $GCOV_SLAVE_ERR
+    [ -f $GCOV_MSG ] && $RM $GCOV_MSG
+    [ -f $GCOV_ERR ] && $RM $GCOV_ERR
     for d in $MYSQLD_SRC_DIRS; do
 	cd $BASEDIR/$d
 	for f in *.h *.cc *.c; do
-	    $GCOV $f 2>>$GCOV_MASTER_ERR  >>$GCOV_MASTER_MSG
-	done
-	cd $MYSQL_TEST_DIR
-	cd $GCOV_SLAVE_SRC/$d
-	for f in *.h *.cc *.c; do
-	    $GCOV $f 2>>$GCOV_SLAVE_ERR  >>$GCOV_SLAVE_MSG
+	    $GCOV $f 2>>$GCOV_ERR  >>$GCOV_MSG
 	done
 	cd $MYSQL_TEST_DIR
     done
 
-    $ECHO "gcov master info in $GCOV_MASTER_MSG, errors in $GCOV_MASTER_ERR"
-    $ECHO "gcov slave info in $GCOV_SLAVE_MSG, errors in $GCOV_SLAVE_ERR"
+    $ECHO "gcov  info in $GCOV_MSG, errors in $GCOV_ERR"
 }
 
 start_master()
@@ -341,7 +322,6 @@ start_master()
 start_slave()
 {
     [ x$SKIP_SLAVE = x1 ] && return
-    [ -d $GCOV_SLAVE_SRC ] && cd $GCOV_SLAVE_SRC
     slave_args="--no-defaults --server-id=2 \
 	    --master-user=root \
 	    --master-connect-retry=1 \
@@ -358,10 +338,10 @@ start_slave()
     if [ x$DO_GDB = x1 ]
     then
       echo "set args $slave_args" > $GDB_SLAVE_INIT
-      xterm -title "Slave" -e gdb -x $GDB_SLAVE_INIT $MYSQLD &
+      xterm -title "Slave" -e gdb -x $GDB_SLAVE_INIT $SLAVE_MYSQLD &
       prompt_user "Hit enter to continue after you've started the slave"
-    else	    
-      $MYSQLD $slave_args  >> $SLAVE_MYERR 2>&1 &
+    else
+      $SLAVE_MYSQLD $slave_args  >> $SLAVE_MYERR 2>&1 &
     fi
     SLAVE_RUNNING=1
 }