Fixed failing tests and compiler warnings

- UNINIT_VAR() was required for 4.8.3 on openSUSE 13.2

include/my_global.h

@@ -468,7 +468,7 @@ extern "C" int madvise(void *addr, size_t len, int behav);
 /*
    Suppress uninitialized variable warning without generating code.
 */
-#if defined(__GNUC__)
+#if defined(__GNUC__) && (__GNUC__ < 4 || __GNUC__ == 4 && __GNUC_MINOR__ < 8)
 /* GCC specific self-initialization which inhibits the warning. */
 #define UNINIT_VAR(x) x= x
 #elif defined(_lint) || defined(FORCE_INIT_OF_VARS)

mysql-test/r/max_statement_time.result

@@ -159,6 +159,7 @@ begin
 select 1;
 select sql_no_cache * from t1 where i > 5;
 select sql_no_cache * from t1 where i > 5;
+select sleep(2);
 end |
 set max_statement_time = 0.001;
 call pr();
@@ -170,6 +171,7 @@ create procedure pr()
 begin
 select sql_no_cache * from t1 where i > 5;
 select sql_no_cache * from t1 where i > 5;
+select sleep(2);
 end |
 set max_statement_time = 0.001;
 call pr();

mysql-test/suite/encryption/disabled.def

@@ -13,3 +13,5 @@
 innodb_scrub : MDEV-8139
 innodb_scrub_compressed : MDEV-8139
 innodb_scrub_background : MDEV-8139
+innodb_encryption-page-compression : Fails with lost connection at line 156
+

mysql-test/t/max_statement_time.test

@@ -201,6 +201,7 @@ create procedure pr()
    select 1;
    select sql_no_cache * from t1 where i > 5;
    select sql_no_cache * from t1 where i > 5;
+   select sleep(2);
  end |
 delimiter ;|
 set max_statement_time = 0.001;
@@ -212,6 +213,7 @@ create procedure pr()
  begin
    select sql_no_cache * from t1 where i > 5;
    select sql_no_cache * from t1 where i > 5;
+   select sleep(2);
  end |
 delimiter ;|
 set max_statement_time = 0.001;

sql/item_geofunc.cc

@@ -1082,6 +1082,8 @@ static int setup_relate_func(Geometry *g1, Geometry *g2,
   uint shape_a, shape_b;
   uint n_operands= 0;
   int last_shape_pos;
+  UNINIT_VAR(shape_a);
+  UNINIT_VAR(shape_b);
 
   last_shape_pos= func->get_next_expression_pos();
   if (func->reserve_op_buffer(1))
@@ -2325,7 +2327,8 @@ String *Item_func_pointonsurface::val_str(String *str)
   String *result= 0;
   const Gcalc_scan_iterator::point *pprev= NULL;
   uint32 srid;
-
+  UNINIT_VAR(px);
+  UNINIT_VAR(py);
 
   null_value= 1;
   if ((args[0]->null_value ||

sql/opt_range.cc

@@ -3545,9 +3545,11 @@ bool calculate_cond_selectivity_for_table(THD *thd, TABLE *table, Item **cond)
 	    break; 
           bitmap_set_bit(&handled_columns, key_part->fieldnr-1);
         }
-        double selectivity_mult;
         if (i)
         {
+          double selectivity_mult;
+          UNINIT_VAR(selectivity_mult);
+
           /* 
             There is at least 1-column prefix of columns whose selectivity has
             not yet been accounted for.

sql/sp_head.cc

@@ -1133,6 +1133,8 @@ sp_head::execute(THD *thd, bool merge_da_on_success)
   Diagnostics_area *da= thd->get_stmt_da();
   Warning_info sp_wi(da->warning_info_id(), false, true);
 
+  UNINIT_VAR(saved_creation_ctx);
+
   /* this 7*STACK_MIN_SIZE is a complex matter with a long history (see it!) */
   if (check_stack_overrun(thd, 7 * STACK_MIN_SIZE, (uchar*)&old_packet))
     DBUG_RETURN(TRUE);

storage/cassandra/ha_cassandra.cc

@@ -2283,7 +2283,7 @@ bool ha_cassandra::mrr_start_read()
     rowkey_converter->mariadb_to_cassandra(&cass_key, &cass_key_len);
 
     // Primitive buffer control
-    if (se->add_lookup_key(cass_key, cass_key_len) >
+    if ((ulong) se->add_lookup_key(cass_key, cass_key_len) >
         THDVAR(table->in_use, multiget_batch_size))
       break;
   }

storage/connect/filamzip.cpp

@@ -1405,7 +1405,7 @@ void ZLBFAM::Rewind(void)
   if (CurBlk >= 0) {   // Nothing to do if no block read yet
     if (!Optimized) {  // If optimized, fseek will be done in ReadBuffer
       rewind(Stream);
-      fread(Zlenp, sizeof(int), 1, Stream);
+      (void) fread(Zlenp, sizeof(int), 1, Stream);
       fseek(Stream, *Zlenp + sizeof(int), SEEK_SET);
       OldBlk = -1;
       } // endif Optimized

storage/innobase/page/page0zip.cc

@@ -4928,9 +4928,12 @@ page_zip_verify_checksum(
 	stored = static_cast<ib_uint32_t>(mach_read_from_4(
 		static_cast<const unsigned char*>(data) + FIL_PAGE_SPACE_OR_CHKSUM));
 
-	ulint	page_no = mach_read_from_4(static_cast<const unsigned char*>					(data) + FIL_PAGE_OFFSET);
-	ulint	space_id = mach_read_from_4(static_cast<const unsigned char*>
-				(data) + FIL_PAGE_SPACE_ID);
+	ulint	page_no __attribute__((unused)) =
+                mach_read_from_4(static_cast<const unsigned char*>
+                                 (data) + FIL_PAGE_OFFSET);
+	ulint	space_id __attribute__((unused)) =
+                mach_read_from_4(static_cast<const unsigned char*>
+                                 (data) + FIL_PAGE_SPACE_ID);
 
 #if FIL_PAGE_LSN % 8
 #error "FIL_PAGE_LSN must be 64 bit aligned"

storage/maria/ma_blockrec.c

@@ -1208,7 +1208,6 @@ static my_bool extend_directory(MARIA_HA *info, uchar *buff, uint block_size,
 {
   uint length, first_pos;
   uchar *dir, *first_dir;
-  MARIA_SHARE *share= info->s;
   DBUG_ENTER("extend_directory");
 
   /*
@@ -1254,10 +1253,10 @@ static my_bool extend_directory(MARIA_HA *info, uchar *buff, uint block_size,
     }
   }
 
-  check_directory(share,
+  check_directory(info->s,
                   buff, block_size,
-                  head_page ? MY_MIN(share->base.min_block_length, length) : 0,
-                  *empty_space);
+                  head_page ? MY_MIN(info->s->base.min_block_length, length) :
+                  0, *empty_space);
   DBUG_RETURN(0);
 }
 

storage/tokudb/ha_tokudb.cc

@@ -172,6 +172,7 @@ static inline uint32_t get_len_of_offsets(KEY_AND_COL_INFO* kc_info, TABLE_SHARE
 }
 
 
+#ifndef NOT_USED
 static int get_thread_query_string(my_thread_id id, String &qs) {
   mysql_mutex_lock(&LOCK_thread_count);
   I_List_iterator<THD> it(threads);
@@ -196,6 +197,7 @@ static int get_thread_query_string(my_thread_id id, String &qs) {
   mysql_mutex_unlock(&LOCK_thread_count);
   return 0;
 }
+#endif
 
 static int allocate_key_and_col_info ( TABLE_SHARE* table_share, KEY_AND_COL_INFO* kc_info) {
     int error;

storage/xtradb/fil/fil0pagecompress.cc

@@ -363,8 +363,9 @@ fil_compress_page(
 
 	/* Actual write needs to be alligned on block size */
 	if (write_size % block_size) {
+#ifdef UNIV_DEBUG
 		size_t tmp = write_size;
-
+#endif
 		write_size =  (size_t)ut_uint64_align_up((ib_uint64_t)write_size, block_size);
 #ifdef UNIV_DEBUG
 		ut_a(write_size > 0 && ((write_size % block_size) == 0));

support-files/compiler_warnings.supp

@@ -56,6 +56,8 @@ buf/buf0buf\.c : label.*loop2.* defined but not used
 #
 storage/xtradb/handler/ha_innodb\.cc: ignoring return value of
 storage/xtradb/row/row0log\.cc: ignoring return value of
+storage/xtradb/btr/btr0cur\.cc : null argument where non-null required
+storage/xtradb/btr/btr0scrub\.cc : null argument where non-null required
 
 #
 # bdb is not critical to keep up to date
@@ -176,22 +178,29 @@ jemalloc/src/jemalloc\.c: set but not used
 #
 # Connect engine
 #
-storage/connect/connect\.cc: might be clobbered by ~longjmp~
+storage/connect/ha_connect\.cc: might be clobbered by
+storage/connect/connect\.cc: might be clobbered by
 storage/connect/filamvct\.cpp: ignoring return value of
-storage/connect/filamvct\.cpp: might be clobbered by ~longjmp~
+storage/connect/filamvct\.cpp: might be clobbered by
 storage/connect/xindex\.cpp: ignoring return value of
 
+#
+# Mroonga
+#
+groonga/lib/expr\.c : const/copy propagation disabled
+
 #
 # Unexplanable (?) stuff
 #
-listener.cc : .*conversion from 'SOCKET' to 'int'.*
-net_serv.cc : .*conversion from 'SOCKET' to 'int'.*
+listener\.cc : .*conversion from 'SOCKET' to 'int'.*
+net_serv\.cc : .*conversion from 'SOCKET' to 'int'.*
 
 #
 # Ignorable warnings from header files
 #
 backward_warning\.h : This file includes at least one
 /usr/include/i386-linux-gnu/bits/string3\.h: memset used with constant zero length parameter
+bits/string3.h : might overflow destination buffer
 
 # allow a little moving space for the warning below
 mi_packrec\.c : .*result of 32-bit shift implicitly converted to 64 bits.* : 560-600