Set --debug-check if one uses DBUG_PUSH in all clients

Fixed bug in query cache that made it impossible to run mysqld with --debug
Fixed memory leaks in mysqldump and mysqltest
Memory leaks associated with wrong usage of mysqltest is not fixed. To find these, run
mysql-test-run --debug mysqltest


client/mysql_upgrade.c:
  Set --debug-check if one uses DBUG_PUSH
client/mysqlcheck.c:
  Set --debug-check if one uses DBUG_PUSH
client/mysqldump.c:
  Set --debug-check if one uses DBUG_PUSH
  Fixed several memory leaks
client/mysqlimport.c:
  Set --debug-check if one uses DBUG_PUSH
client/mysqlshow.c:
  Set --debug-check if one uses DBUG_PUSH
client/mysqlslap.c:
  Set --debug-check if one uses DBUG_PUSH
client/mysqltest.c:
  Set --debug-check if one uses DBUG_PUSH
  Fixed some memory leaks
  Removed MY_CHECK_ERROR argument to my_end() as mysqltest.test otherwise shows MANY memory leaks
dbug/dbug.c:
  Fixed compiler warning
  Force flush of out_file on end
  Removed some wrong dbug_flush(0) commands that could cause crashes
mysys/my_init.c:
  Don't write memory usage if MY_GIVE_INFO is not given
sql/sql_cache.cc:
  Fixed bug in query cache that made it impossible to run mysqld with --debug

client/mysql_upgrade.c

@@ -218,6 +218,7 @@ get_one_option(int optid, const struct my_option *opt,
   case '#':
     DBUG_PUSH(argument ? argument : default_dbug_option);
     add_option= FALSE;
+    debug_check_flag= 1;
     break;
 
   case 'p':

client/mysqlcheck.c

@@ -310,6 +310,7 @@ get_one_option(int optid, const struct my_option *opt __attribute__((unused)),
     break;
   case '#':
     DBUG_PUSH(argument ? argument : "d:t:o");
+    debug_check_flag= 1;
     break;
 #include <sslopt-case.h>
   case OPT_TABLES:

client/mysqldump.c

@@ -729,7 +729,7 @@ get_one_option(int optid, const struct my_option *opt __attribute__((unused)),
     break;
   case '#':
     DBUG_PUSH(argument ? argument : default_dbug_option);
-    debug_info_flag= 1;
+    debug_check_flag= 1;
     break;
 #include <sslopt-case.h>
   case 'V': print_version(); exit(0);
@@ -2070,7 +2070,6 @@ static uint get_table_structure(char *table, char *db, char *table_type,
   int        len;
   MYSQL_RES  *result;
   MYSQL_ROW  row;
-
   DBUG_ENTER("get_table_structure");
   DBUG_PRINT("enter", ("db: %s  table: %s", db, table));
 
@@ -2472,6 +2471,7 @@ static uint get_table_structure(char *table, char *db, char *table_type,
           fprintf(sql_file, " (%s)",row[7]);      /* Sub key */
         check_io(sql_file);
       }
+      mysql_free_result(result);
       if (!opt_xml)
       {
         if (keynr)
@@ -2813,7 +2813,7 @@ static void dump_table(char *table, char *db)
   /*
     The "table" could be a view.  If so, we don't do anything here.
   */
-  if (strcmp (table_type, "VIEW") == 0)
+  if (strcmp(table_type, "VIEW") == 0)
     DBUG_VOID_RETURN;
 
   /* Check --no-data flag */
@@ -2903,6 +2903,7 @@ static void dump_table(char *table, char *db)
     if (mysql_real_query(mysql, query_string.str, query_string.length))
     {
       DB_error(mysql, "when executing 'SELECT INTO OUTFILE'");
+      dynstr_free(&query_string);
       DBUG_VOID_RETURN;
     }
   }
@@ -3257,8 +3258,8 @@ static void dump_table(char *table, char *db)
       check_io(md_result_file);
     }
     mysql_free_result(res);
-    dynstr_free(&query_string);
   }
+  dynstr_free(&query_string);
   DBUG_VOID_RETURN;
 
 err:
@@ -3379,6 +3380,7 @@ static int dump_tablespaces(char* ts_where)
   char extra_format[]= "UNDO_BUFFER_SIZE=";
   char *ubs;
   char *endsemi;
+  DBUG_ENTER("dump_tablespaces");
 
   init_dynamic_string_checked(&sqlbuf,
                       "SELECT LOGFILE_GROUP_NAME,"
@@ -3410,6 +3412,7 @@ static int dump_tablespaces(char* ts_where)
   if (mysql_query(mysql, sqlbuf.str) ||
       !(tableres = mysql_store_result(mysql)))
   {
+    dynstr_free(&sqlbuf);
     if (mysql_errno(mysql) == ER_BAD_TABLE_ERROR ||
         mysql_errno(mysql) == ER_BAD_DB_ERROR ||
         mysql_errno(mysql) == ER_UNKNOWN_TABLE)
@@ -3418,12 +3421,12 @@ static int dump_tablespaces(char* ts_where)
               "\n--\n-- Not dumping tablespaces as no INFORMATION_SCHEMA.FILES"
               " table on this server\n--\n");
       check_io(md_result_file);
-      return 0;
+      DBUG_RETURN(0);
     }
 
-    my_printf_error(0, "Error: Couldn't dump tablespaces %s",
+    my_printf_error(0, "Error: '%s' when trying to dump tablespaces",
                     MYF(0), mysql_error(mysql));
-    return 1;
+    DBUG_RETURN(1);
   }
 
   buf[0]= 0;
@@ -3475,6 +3478,7 @@ static int dump_tablespaces(char* ts_where)
     }
   }
   dynstr_free(&sqlbuf);
+  mysql_free_result(tableres);
   init_dynamic_string_checked(&sqlbuf,
                       "SELECT DISTINCT TABLESPACE_NAME,"
                       " FILE_NAME,"
@@ -3492,7 +3496,10 @@ static int dump_tablespaces(char* ts_where)
   dynstr_append_checked(&sqlbuf, " ORDER BY TABLESPACE_NAME, LOGFILE_GROUP_NAME");
 
   if (mysql_query_with_error_report(mysql, &tableres, sqlbuf.str))
-    return 1;
+  {
+    dynstr_free(&sqlbuf);
+    DBUG_RETURN(1);
+  }
 
   buf[0]= 0;
   while ((row= mysql_fetch_row(tableres)))
@@ -3538,8 +3545,9 @@ static int dump_tablespaces(char* ts_where)
     }
   }
 
+  mysql_free_result(tableres);
   dynstr_free(&sqlbuf);
-  return 0;
+  DBUG_RETURN(0);
 }
 
 static int dump_all_databases()
@@ -3626,8 +3634,11 @@ RETURN VALUES
   0        Success.
   1        Failure.
 */
+
 int init_dumping_tables(char *qdatabase)
 {
+  DBUG_ENTER("init_dumping_tables");
+
   if (!opt_create_db)
   {
     char qbuf[256];
@@ -3660,10 +3671,10 @@ int init_dumping_tables(char *qdatabase)
       {
         fprintf(md_result_file,"\n%s;\n",row[1]);
       }
+      mysql_free_result(dbinfo);
     }
   }
-
-  return 0;
+  DBUG_RETURN(0);
 } /* init_dumping_tables */
 
 
@@ -3931,6 +3942,11 @@ static int dump_selected_tables(char *db, char **table_names, int tables)
     }
     else
     {
+      if (!ignore_errors)
+      {
+        dynstr_free(&lock_tables_query);
+        free_root(&root, MYF(0));
+      }
       maybe_die(EX_ILLEGAL_TABLE, "Couldn't find table: \"%s\"", *table_names);
       /* We shall countinue here, if --force was given */
     }
@@ -3941,14 +3957,25 @@ static int dump_selected_tables(char *db, char **table_names, int tables)
   {
     if (mysql_real_query(mysql, lock_tables_query.str,
                          lock_tables_query.length-1))
+    {
+      if (!ignore_errors)
+      {
+        dynstr_free(&lock_tables_query);
+        free_root(&root, MYF(0));
+      }
       DB_error(mysql, "when doing LOCK TABLES");
        /* We shall countinue here, if --force was given */
     }
+  }
   dynstr_free(&lock_tables_query);
   if (flush_logs)
   {
     if (mysql_refresh(mysql, REFRESH_LOG))
+    {
+      if (!ignore_errors)
+        free_root(&root, MYF(0));
       DB_error(mysql, "when doing refresh");
+    }
      /* We shall countinue here, if --force was given */
   }
   if (opt_xml)
@@ -4511,6 +4538,9 @@ static my_bool get_view_structure(char *table, char* db)
     if (!(table_res= mysql_store_result(mysql)) ||
         !(row= mysql_fetch_row(table_res)))
     {
+      if (table_res)
+        mysql_free_result(table_res);
+      dynstr_free(&ds_view);
       DB_error(mysql, "when trying to save the result of SHOW CREATE TABLE in ds_view.");
       DBUG_RETURN(1);
     }

client/mysqlimport.c

@@ -240,6 +240,7 @@ get_one_option(int optid, const struct my_option *opt __attribute__((unused)),
     break;
   case '#':
     DBUG_PUSH(argument ? argument : "d:t:o");
+    debug_check_flag= 1;
     break;
 #include <sslopt-case.h>
   case 'V': print_version(); exit(0);

client/mysqlshow.c

@@ -299,6 +299,7 @@ get_one_option(int optid, const struct my_option *opt __attribute__((unused)),
     break;
   case '#':
     DBUG_PUSH(argument ? argument : "d:t:o");
+    debug_check_flag= 1;
     break;
 #include <sslopt-case.h>
   case 'V':

client/mysqlslap.c

@@ -699,6 +699,7 @@ get_one_option(int optid, const struct my_option *opt __attribute__((unused)),
     break;
   case '#':
     DBUG_PUSH(argument ? argument : default_dbug_option);
+    debug_check_flag= 1;
     break;
 #include <sslopt-case.h>
   case 'V':

client/mysqltest.c

@@ -809,10 +809,9 @@ void free_used_memory()
 static void cleanup_and_exit(int exit_code)
 {
   free_used_memory();
-  my_end(my_end_arg | MY_CHECK_ERROR);
+  my_end(my_end_arg);
 
-  if (!silent)
-  {
+  if (!silent) {
     switch (exit_code) {
     case 1:
       printf("not ok\n");
@@ -1085,8 +1084,7 @@ void check_result(DYNAMIC_STRING* ds)
   DBUG_ENTER("check_result");
   DBUG_ASSERT(result_file_name);
 
-  switch (dyn_string_cmp(ds, result_file_name))
-  {
+  switch (dyn_string_cmp(ds, result_file_name)) {
   case RESULT_OK:
     break; /* ok */
   case RESULT_LENGTH_MISMATCH:
@@ -1930,7 +1928,10 @@ void do_exec(struct st_command *command)
                       command->first_argument, ds_cmd.str));
 
   if (!(res_file= my_popen(&ds_cmd, "r")) && command->abort_on_error)
+  {
+    dynstr_free(&ds_cmd);
     die("popen(\"%s\", \"r\") failed", command->first_argument);
+  }
 
   while (fgets(buf, sizeof(buf), res_file))
   {
@@ -1954,6 +1955,7 @@ void do_exec(struct st_command *command)
     {
       log_msg("exec of '%s failed, error: %d, status: %d, errno: %d",
               ds_cmd.str, error, status, errno);
+      dynstr_free(&ds_cmd);
       die("command \"%s\" failed", command->first_argument);
     }
 
@@ -1972,15 +1974,19 @@ void do_exec(struct st_command *command)
       }
     }
     if (!ok)
+    {
+      dynstr_free(&ds_cmd);
       die("command \"%s\" failed with wrong error: %d",
           command->first_argument, status);
     }
+  }
   else if (command->expected_errors.err[0].type == ERR_ERRNO &&
            command->expected_errors.err[0].code.errnum != 0)
   {
     /* Error code we wanted was != 0, i.e. not an expected success */
     log_msg("exec of '%s failed, error: %d, errno: %d",
             ds_cmd.str, error, errno);
+    dynstr_free(&ds_cmd);
     die("command \"%s\" succeeded - should have failed with errno %d...",
         command->first_argument, command->expected_errors.err[0].code.errnum);
   }
@@ -4632,6 +4638,7 @@ get_one_option(int optid, const struct my_option *opt __attribute__((unused)),
   case '#':
 #ifndef DBUG_OFF
     DBUG_PUSH(argument ? argument : "d:t:S:i:O,/tmp/mysqltest.trace");
+    debug_check_flag= 1;
 #endif
     break;
   case 'r':
@@ -5390,9 +5397,6 @@ void run_query_normal(struct st_connection *cn, struct st_command *command,
   NOTE
     If there is an unexpected error this function will abort mysqltest
     immediately.
-
-  RETURN VALUE
-  error - function will not return
 */
 
 void handle_error(struct st_command *command,

dbug/dbug.c

@@ -1184,7 +1184,7 @@ void _db_dump_(uint _line_, const char *keyword,
       fprintf(cs->stack->out_file, "%s: ", cs->func);
     }
     sprintf(dbuff,"%s: Memory: 0x%lx  Bytes: (%ld)\n",
-            keyword,(ulong) memory, length);
+            keyword, (ulong) memory, (long) length);
     (void) fputs(dbuff,cs->stack->out_file);
 
     pos=0;
@@ -1449,6 +1449,7 @@ static void FreeState(CODE_STATE *cs, struct settings *state, int free_state)
     FreeList(state->p_functions);
   if (!is_shared(state, out_file))
     DBUGCloseFile(cs, state->out_file);
+  (void) fflush(cs->stack->out_file);
   if (state->prof_file)
     DBUGCloseFile(cs, state->prof_file);
   if (free_state)
@@ -1882,7 +1883,6 @@ static FILE *OpenProfile(CODE_STATE *cs, const char *name)
   {
     (void) fprintf(cs->stack->out_file, ERR_OPEN, cs->process, name);
     perror("");
-    dbug_flush(0);
     (void) Delay(cs->stack->delay);
   }
   else
@@ -1892,7 +1892,6 @@ static FILE *OpenProfile(CODE_STATE *cs, const char *name)
     {
       (void) fprintf(cs->stack->out_file, ERR_OPEN, cs->process, name);
       perror("");
-      dbug_flush(0);
     }
     else
     {
@@ -1931,7 +1930,7 @@ static void DBUGCloseFile(CODE_STATE *cs, FILE *fp)
     pthread_mutex_lock(&THR_LOCK_dbug);
     (void) fprintf(cs->stack->out_file, ERR_CLOSE, cs->process);
     perror("");
-    dbug_flush(0);
+    dbug_flush(cs);
   }
 }
 

mysys/my_init.c

@@ -134,14 +134,14 @@ void my_end(int infoflag)
     We do not use DBUG_ENTER here, as after cleanup DBUG is no longer
     operational, so we cannot use DBUG_RETURN.
   */
-  DBUG_PRINT("info",("Shutting down"));
+  DBUG_PRINT("info",("Shutting down: infoflag: %d  print_info: %d",
+                     infoflag, print_info));
   if (!info_file)
   {
     info_file= stderr;
     print_info= 0;
   }
 
-  DBUG_PRINT("info",("Shutting down: print_info: %d", print_info));
   if ((infoflag & MY_CHECK_ERROR) || print_info)
 
   {					/* Test if some file is left open */
@@ -186,7 +186,7 @@ Voluntary context switches %ld, Involuntary context switches %ld\n",
     fprintf(info_file,"\nRun time: %.1f\n",(double) clock()/CLOCKS_PER_SEC);
 #endif
 #if defined(SAFEMALLOC)
-    TERMINATE(stderr, 1);		/* Give statistic on screen */
+    TERMINATE(stderr, (infoflag & MY_GIVE_INFO) != 0);
 #elif defined(__WIN__) && defined(_MSC_VER)
    _CrtSetReportMode( _CRT_WARN, _CRTDBG_MODE_FILE );
    _CrtSetReportFile( _CRT_WARN, _CRTDBG_FILE_STDERR );

sql/sql_cache.cc

@@ -862,6 +862,7 @@ Query_cache::Query_cache(ulong query_cache_limit_arg,
 
 ulong Query_cache::resize(ulong query_cache_size_arg)
 {
+  ulong new_query_cache_size;
   DBUG_ENTER("Query_cache::resize");
   DBUG_PRINT("qcache", ("from %lu to %lu",query_cache_size,
 			query_cache_size_arg));
@@ -876,13 +877,13 @@ ulong Query_cache::resize(ulong query_cache_size_arg)
   free_cache();
 
   query_cache_size= query_cache_size_arg;
-  ulong new_query_cache_size= init_cache();
-
-  DBUG_EXECUTE("check_querycache",check_integrity(0););
+  new_query_cache_size= init_cache();
 
   STRUCT_LOCK(&structure_guard_mutex);
   m_cache_status= Query_cache::NO_FLUSH_IN_PROGRESS;
   pthread_cond_signal(&COND_cache_status_changed);
+  if (new_query_cache_size)
+    DBUG_EXECUTE("check_querycache",check_integrity(1););
   STRUCT_UNLOCK(&structure_guard_mutex);
 
   DBUG_RETURN(new_query_cache_size);