Valgrind error fixes

Notes:
This patch doesn't fix all issues in the tree and we need jani's fix for that
This patch shoud not be merged into 5.0

mysql-test/r/ps.result

@@ -1087,19 +1087,4 @@ t2	CREATE TABLE `t2` (
 drop database mysqltest;
 deallocate prepare stmt1;
 deallocate prepare stmt2;
-execute stmt;
-show create table t1;
-Table	Create Table
-t1	CREATE TABLE `t1` (
-  `c` char(10) default NULL
-) ENGINE=MyISAM DEFAULT CHARSET=latin1 DATA DIRECTORY='MYSQLTEST_VARDIR/tmp/'
-drop table t1;
-execute stmt;
-show create table t1;
-Table	Create Table
-t1	CREATE TABLE `t1` (
-  `c` char(10) default NULL
-) ENGINE=MyISAM DEFAULT CHARSET=latin1 DATA DIRECTORY='MYSQLTEST_VARDIR/tmp/'
-drop table t1;
-deallocate prepare stmt;
 End of 4.1 tests.

mysql-test/r/symlink.result

@@ -123,4 +123,19 @@ select * from t1;
 a
 42
 drop table t1;
+execute stmt;
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `c` char(10) default NULL
+) ENGINE=MyISAM DEFAULT CHARSET=latin1 DATA DIRECTORY='MYSQLTEST_VARDIR/tmp/'
+drop table t1;
+execute stmt;
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `c` char(10) default NULL
+) ENGINE=MyISAM DEFAULT CHARSET=latin1 DATA DIRECTORY='MYSQLTEST_VARDIR/tmp/'
+drop table t1;
+deallocate prepare stmt;
 End of 4.1 tests

mysql-test/t/ps.test

@@ -1128,22 +1128,4 @@ drop database mysqltest;
 deallocate prepare stmt1;
 deallocate prepare stmt2;
 #
-# CREATE TABLE with DATA DIRECTORY option
-#
-# Protect ourselves from data left in tmp/ by a previos possibly failed
-# test
---system rm -f $MYSQLTEST_VARDIR/tmp/t1.*
---disable_query_log
-eval prepare stmt from "create table t1 (c char(10)) data directory='$MYSQLTEST_VARDIR/tmp'";
---enable_query_log
-execute stmt;
---replace_result $MYSQLTEST_VARDIR MYSQLTEST_VARDIR
-show create table t1;
-drop table t1;
-execute stmt;
---replace_result $MYSQLTEST_VARDIR MYSQLTEST_VARDIR
-show create table t1;
-drop table t1;
-deallocate prepare stmt;
-#
 --echo End of 4.1 tests.

mysql-test/t/symlink.test

@@ -170,4 +170,23 @@ connection default;
 select * from t1;
 drop table t1;
 
+#
+# CREATE TABLE with DATA DIRECTORY option
+#
+# Protect ourselves from data left in tmp/ by a previos possibly failed
+# test
+--system rm -f $MYSQLTEST_VARDIR/tmp/t1.*
+--disable_query_log
+eval prepare stmt from "create table t1 (c char(10)) data directory='$MYSQLTEST_VARDIR/tmp'";
+--enable_query_log
+execute stmt;
+--replace_result $MYSQLTEST_VARDIR MYSQLTEST_VARDIR
+show create table t1;
+drop table t1;
+execute stmt;
+--replace_result $MYSQLTEST_VARDIR MYSQLTEST_VARDIR
+show create table t1;
+drop table t1;
+deallocate prepare stmt;
+
 --echo End of 4.1 tests

mysql-test/valgrind.supp

+#
+# Suppress some common (not fatal) errors in system libraries found by valgrind
+#
+
+#
+# Pthread doesn't free all thread specific memory before program exists
+#
+{
+   pthread allocate_tls memory loss
+   Memcheck:Leak
+   fun:calloc
+   fun:_dl_allocate_tls
+   fun:allocate_stack
+   fun:pthread_create*
+}
+
+{
+   pthread allocate_tls memory loss
+   Memcheck:Leak
+   fun:calloc
+   fun:_dl_allocate_tls
+   fun:pthread_create*
+}
+
+{
+   pthread allocate_dtv memory loss
+   Memcheck:Leak
+   fun:calloc
+   fun:allocate_dtv
+   fun:_dl_allocate_tls_storage
+   fun:__GI__dl_allocate_tls
+   fun:pthread_create
+}
+
+{
+   pthread allocate_dtv memory loss second
+   Memcheck:Leak
+   fun:calloc
+   fun:allocate_dtv
+   fun:_dl_allocate_tls
+   fun:pthread_create*
+}
+
+{
+   pthread memalign memory loss
+   Memcheck:Leak
+   fun:memalign
+   fun:_dl_allocate_tls_storage
+   fun:__GI__dl_allocate_tls
+   fun:pthread_create
+}
+
+{
+   pthread pthread_key_create
+   Memcheck:Leak
+   fun:malloc
+   fun:*
+   fun:*
+   fun:pthread_key_create
+   fun:my_thread_global_init
+}
+
+{
+   pthread strstr uninit
+   Memcheck:Cond
+   fun:strstr
+   obj:/lib/tls/libpthread.so.*
+   obj:/lib/tls/libpthread.so.*
+   fun:call_init
+   fun:_dl_init
+   obj:/lib/ld-*.so
+}
+
+{
+   pthread errno
+   Memcheck:Leak
+   fun:calloc
+   fun:_dlerror_run
+   fun:dlsym
+   fun:__errno_location
+}
+
+
+#
+# Warnings in libz becasue it works with aligned memory(?)
+#
+
+{
+   libz tr_flush_block
+   Memcheck:Cond
+   fun:_tr_flush_block
+   fun:deflate_slow
+   fun:deflate
+   fun:do_flush
+   fun:gzclose
+}
+
+{
+   libz tr_flush_block2
+   Memcheck:Cond
+   fun:_tr_flush_block
+   fun:deflate_slow
+   fun:deflate
+   fun:compress2
+}
+
+{
+   libz longest_match
+   Memcheck:Cond
+   fun:longest_match
+   fun:deflate_slow
+   fun:deflate
+   fun:do_flush
+}
+
+{
+   libz longest_match2
+   Memcheck:Cond
+   fun:longest_match
+   fun:deflate_slow
+   fun:deflate
+   fun:compress2
+}
+
+{
+   libz longest_match 3
+   Memcheck:Cond
+   fun:longest_match
+   fun:deflate_slow
+   fun:deflate
+   fun:gzclose
+}
+
+{
+   libz longest_match 4 
+   Memcheck:Cond
+   fun:longest_match
+   fun:deflate_slow
+   fun:deflate
+   fun:gzflush
+}
+
+{
+   libz deflate
+   Memcheck:Cond
+   obj:*/libz.so.*
+   obj:*/libz.so.*
+   fun:deflate
+   fun:compress2
+}
+
+{
+   libz deflate2
+   Memcheck:Cond
+   obj:*/libz.so.*
+   obj:*/libz.so.*
+   fun:deflate
+   obj:*/libz.so.*
+   fun:gzflush
+}
+
+
+#
+# Warning from my_thread_init becasue mysqld dies before kill thread exists
+#
+
+{
+   my_thread_init kill thread memory loss second
+   Memcheck:Leak
+   fun:calloc
+   fun:my_thread_init
+   fun:kill_server_thread
+}
+
+#
+# Leaks reported in _dl_* internal functions on Linux amd64 / glibc2.3.2.
+#
+
+{
+   _dl_start invalid write8
+   Memcheck:Addr8
+   fun:_dl_start
+}
+
+{
+   _dl_start invalid write4
+   Memcheck:Addr4
+   fun:_dl_start
+}
+
+{
+   _dl_start/_dl_setup_hash invalid read8
+   Memcheck:Addr8
+   fun:_dl_setup_hash
+   fun:_dl_start
+}
+
+{
+   _dl_sysdep_start invalid write8
+   Memcheck:Addr8
+   fun:_dl_sysdep_start
+}
+
+{
+   _dl_init invalid write8
+   Memcheck:Addr8
+   fun:_dl_init
+}
+
+{
+   _dl_init invalid write4
+   Memcheck:Addr4
+   fun:_dl_init
+}
+
+{
+   _dl_init/_dl_init invalid read8
+   Memcheck:Addr8
+   fun:_dl_debug_initialize
+   fun:_dl_init
+}
+
+{
+   _dl_init/_dl_debug_state invalid read8
+   Memcheck:Addr8
+   fun:_dl_debug_state
+   fun:_dl_init
+}
+
+{
+   init invalid write8
+   Memcheck:Addr8
+   fun:init
+}
+
+{
+   fixup invalid write8
+   Memcheck:Addr8
+   fun:fixup
+}
+
+{
+   fixup/_dl_lookup_versioned_symbol invalid read8
+   Memcheck:Addr8
+   fun:_dl_lookup_versioned_symbol
+   fun:fixup
+}
+
+{
+   _dl_runtime_resolve invalid read8
+   Memcheck:Addr8
+   fun:_dl_runtime_resolve
+}
+
+{
+   __libc_start_main invalid write8
+   Memcheck:Addr8
+   fun:__libc_start_main
+}
+
+{
+   __libc_start_main/__sigjmp_save invalid write4
+   Memcheck:Addr4
+   fun:__sigjmp_save
+   fun:__libc_start_main
+}
+
+#
+# These seem to be libc threading stuff, not related to MySQL code (allocations
+# during pthread_exit()). Googling shows other projects also using these
+# suppressions.
+#
+# Note that these all stem from pthread_exit() deeper in the call stack, but
+# Valgrind only allows the top four calls in the suppressions.
+#
+
+{
+   libc pthread_exit 1
+   Memcheck:Leak
+   fun:malloc
+   fun:_dl_new_object
+   fun:_dl_map_object_from_fd
+   fun:_dl_map_object
+}
+
+{
+   libc pthread_exit 2
+   Memcheck:Leak
+   fun:malloc
+   fun:_dl_map_object
+   fun:dl_open_worker
+   fun:_dl_catch_error
+}
+
+{
+   libc pthread_exit 3
+   Memcheck:Leak
+   fun:malloc
+   fun:_dl_map_object_deps
+   fun:dl_open_worker
+   fun:_dl_catch_error
+}
+
+{
+   libc pthread_exit 4
+   Memcheck:Leak
+   fun:calloc
+   fun:_dl_check_map_versions
+   fun:dl_open_worker
+   fun:_dl_catch_error
+}
+
+{
+   libc pthread_exit 5
+   Memcheck:Leak
+   fun:calloc
+   fun:_dl_new_object
+   fun:_dl_map_object_from_fd
+   fun:_dl_map_object
+}
+
+
+
+#
+# This is seen internally in the system libraries on 64-bit RHAS3.
+#
+
+{
+   __lll_mutex_unlock_wake uninitialized
+   Memcheck:Param
+   futex(utime)
+   fun:__lll_mutex_unlock_wake
+}
+
+#
+# BUG#19940: NDB sends uninitialized parts of field buffers across the wire.
+# This is "works as designed"; the uninitialized part is not used at the
+# other end (but Valgrind cannot see this).
+#
+{
+   bug19940
+   Memcheck:Param
+   socketcall.sendto(msg)
+   fun:send
+   fun:_ZN15TCP_Transporter6doSendEv
+   fun:_ZN19TransporterRegistry11performSendEv
+   fun:_ZN19TransporterRegistry14forceSendCheckEi
+}
+
+{
+   OpenSSL_1
+   Memcheck:Cond
+   fun:BN_num_bits_word
+   fun:BN_num_bits
+   fun:BN_mod_exp_mont_consttime
+   fun:BN_mod_exp_mont
+   obj:*libcrypto.so.*
+   obj:*libcrypto.so.*
+   fun:DH_generate_key
+   fun:ssl3_ctx_ctrl
+   fun:SSL_CTX_ctrl
+   fun:new_VioSSLAcceptorFd
+   fun:main
+}
+
+{
+   OpenSSL_2
+   Memcheck:Value4
+   fun:BN_num_bits_word
+   fun:BN_num_bits
+   fun:BN_mod_exp_mont_consttime
+   fun:BN_mod_exp_mont
+   obj:*libcrypto.so.*
+   obj:*libcrypto.so.*
+   fun:DH_generate_key
+   fun:ssl3_ctx_ctrl
+   fun:SSL_CTX_ctrl
+   fun:new_VioSSLAcceptorFd
+   fun:main
+}
+
+{
+   OpenSSL_3
+   Memcheck:Value4
+   fun:BN_mod_exp_mont_consttime
+   fun:BN_mod_exp_mont
+   obj:*libcrypto.so.*
+   obj:*libcrypto.so.*
+   fun:DH_generate_key
+   fun:ssl3_ctx_ctrl
+   fun:SSL_CTX_ctrl
+   fun:new_VioSSLAcceptorFd
+   fun:main
+}
+
+{
+   OpenSSL_4
+   Memcheck:Cond
+   fun:BN_bin2bn
+   obj:*libcrypto.so.*
+   obj:*libcrypto.so.*
+   fun:DH_generate_key
+   fun:ssl3_ctx_ctrl
+   fun:SSL_CTX_ctrl
+   fun:new_VioSSLAcceptorFd
+   fun:main
+}
+
+{
+  OpenSSL_5
+  Memcheck:Leak
+  fun:realloc
+  obj:*libcrypto.so.*
+  fun:CRYPTO_realloc
+  fun:lh_insert
+  fun:OBJ_NAME_add
+  fun:EVP_add_cipher
+  fun:OpenSSL_add_all_ciphers
+  fun:OPENSSL_add_all_algorithms_noconf
+  fun:new_VioSSLAcceptorFd
+  fun:main
+}
+
+{
+  OpenSSL_6
+  Memcheck:Leak
+  fun:malloc
+  obj:*libcrypto.so.*
+  fun:CRYPTO_malloc
+  fun:lh_new
+  fun:OBJ_NAME_init
+  fun:OBJ_NAME_add
+  fun:EVP_add_cipher
+  fun:SSL_library_init
+  fun:new_VioSSLAcceptorFd
+  fun:main
+}

sql/field_conv.cc

@@ -605,6 +605,10 @@ void field_conv(Field *to,Field *from)
         from->charset() == to->charset() &&
 	to->table->db_low_byte_first == from->table->db_low_byte_first)
     {						// Identical fields
+#ifdef HAVE_purify
+      /* This may happen if one does 'UPDATE ... SET x=x' */
+      if (to->ptr != from->ptr)
+#endif
       memcpy(to->ptr,from->ptr,to->pack_length());
       return;
     }

sql/mysqld.cc

@@ -1070,7 +1070,10 @@ void clean_up(bool print_message)
 #endif
 #ifdef HAVE_OPENSSL
   if (ssl_acceptor_fd)
+  {
+    SSL_CTX_free(ssl_acceptor_fd->ssl_context);
     my_free((gptr) ssl_acceptor_fd, MYF(MY_ALLOW_ZERO_PTR));
+  }
 #endif /* HAVE_OPENSSL */
 #ifdef USE_REGEX
   my_regex_end();

vio/viosslfactories.c

@@ -289,6 +289,8 @@ new_VioSSLConnectorFd(const char* key_file,
   DBUG_RETURN(ptr);
 ctor_failure:
   DBUG_PRINT("exit", ("there was an error"));
+  if (ptr->ssl_context)
+    SSL_CTX_free(ptr->ssl_context);
   my_free((gptr)ptr,MYF(0));
   DBUG_RETURN(0);
 }
@@ -390,6 +392,8 @@ new_VioSSLAcceptorFd(const char *key_file,
 
 ctor_failure:
   DBUG_PRINT("exit", ("there was an error"));
+  if (ptr->ssl_context)
+    SSL_CTX_free(ptr->ssl_context);
   my_free((gptr) ptr,MYF(0));
   DBUG_RETURN(0);
 }