Added test case for new system variable innodb_use_stacktrace and made sure that it can be used only on startup. Fixed compiler problems on solaris and other platforms that do not contain necessary headers and functions.

mysql-test/suite/sys_vars/r/all_vars.result

@@ -10,6 +10,5 @@ there should be *no* long test name listed below:
 select distinct variable_name as `there should be *no* variables listed below:` from t2
 left join t1 on variable_name=test_name where test_name is null;
 there should be *no* variables listed below:
-innodb_use_stacktrace
 drop table t1;
 drop table t2;

mysql-test/suite/sys_vars/r/innodb_use_stacktrace_basic.result

@@ -0,0 +1,48 @@
+SELECT COUNT(@@GLOBAL.innodb_use_stacktrace);
+COUNT(@@GLOBAL.innodb_use_stacktrace)
+1
+1 Expected
+SET @@GLOBAL.innodb_use_stacktrace=1;
+ERROR HY000: Variable 'innodb_use_stacktrace' is a read only variable
+Expected error 'Read only variable'
+SELECT COUNT(@@GLOBAL.innodb_use_stacktrace);
+COUNT(@@GLOBAL.innodb_use_stacktrace)
+1
+1 Expected
+SELECT IF(@@GLOBAL.innodb_use_stacktrace, 'ON', 'OFF') = VARIABLE_VALUE
+FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
+WHERE VARIABLE_NAME='innodb_use_stacktrace';
+IF(@@GLOBAL.innodb_use_stacktrace, 'ON', 'OFF') = VARIABLE_VALUE
+1
+1 Expected
+SELECT COUNT(@@GLOBAL.innodb_use_stacktrace);
+COUNT(@@GLOBAL.innodb_use_stacktrace)
+1
+1 Expected
+SELECT COUNT(VARIABLE_VALUE)
+FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
+WHERE VARIABLE_NAME='innodb_use_stacktrace';
+COUNT(VARIABLE_VALUE)
+1
+1 Expected
+SELECT @@innodb_use_stacktrace = @@GLOBAL.innodb_use_stacktrace;
+@@innodb_use_stacktrace = @@GLOBAL.innodb_use_stacktrace
+1
+1 Expected
+SELECT COUNT(@@innodb_use_stacktrace);
+COUNT(@@innodb_use_stacktrace)
+1
+1 Expected
+SELECT COUNT(@@local.innodb_use_stacktrace);
+ERROR HY000: Variable 'innodb_use_stacktrace' is a GLOBAL variable
+Expected error 'Variable is a GLOBAL variable'
+SELECT COUNT(@@SESSION.innodb_use_stacktrace);
+ERROR HY000: Variable 'innodb_use_stacktrace' is a GLOBAL variable
+Expected error 'Variable is a GLOBAL variable'
+SELECT COUNT(@@GLOBAL.innodb_use_stacktrace);
+COUNT(@@GLOBAL.innodb_use_stacktrace)
+1
+1 Expected
+SELECT innodb_use_stacktrace = @@SESSION.innodb_use_stacktrace;
+ERROR 42S22: Unknown column 'innodb_use_stacktrace' in 'field list'
+Expected error 'Readonly variable'

mysql-test/suite/sys_vars/t/innodb_use_stacktrace_basic.test

@@ -0,0 +1,56 @@
+--source include/have_xtradb.inc
+
+SELECT COUNT(@@GLOBAL.innodb_use_stacktrace);
+--echo 1 Expected
+
+####################################################################
+#   Check if Value can set                                         #
+####################################################################
+
+--error ER_INCORRECT_GLOBAL_LOCAL_VAR
+SET @@GLOBAL.innodb_use_stacktrace=1;
+--echo Expected error 'Read only variable'
+
+SELECT COUNT(@@GLOBAL.innodb_use_stacktrace);
+--echo 1 Expected
+
+#################################################################
+# Check if the value in GLOBAL Table matches value in variable  #
+#################################################################
+
+SELECT IF(@@GLOBAL.innodb_use_stacktrace, 'ON', 'OFF') = VARIABLE_VALUE
+FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
+WHERE VARIABLE_NAME='innodb_use_stacktrace';
+--echo 1 Expected
+
+SELECT COUNT(@@GLOBAL.innodb_use_stacktrace);
+--echo 1 Expected
+
+SELECT COUNT(VARIABLE_VALUE)
+FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
+WHERE VARIABLE_NAME='innodb_use_stacktrace';
+--echo 1 Expected
+
+################################################################################
+#  Check if accessing variable with and without GLOBAL point to same variable  #
+################################################################################
+SELECT @@innodb_use_stacktrace = @@GLOBAL.innodb_use_stacktrace;
+--echo 1 Expected
+
+SELECT COUNT(@@innodb_use_stacktrace);
+--echo 1 Expected
+
+--Error ER_INCORRECT_GLOBAL_LOCAL_VAR
+SELECT COUNT(@@local.innodb_use_stacktrace);
+--echo Expected error 'Variable is a GLOBAL variable'
+
+--Error ER_INCORRECT_GLOBAL_LOCAL_VAR
+SELECT COUNT(@@SESSION.innodb_use_stacktrace);
+--echo Expected error 'Variable is a GLOBAL variable'
+
+SELECT COUNT(@@GLOBAL.innodb_use_stacktrace);
+--echo 1 Expected
+
+--Error ER_BAD_FIELD_ERROR
+SELECT innodb_use_stacktrace = @@SESSION.innodb_use_stacktrace;
+--echo Expected error 'Readonly variable'

storage/xtradb/handler/ha_innodb.cc

@@ -13473,8 +13473,8 @@ static MYSQL_SYSVAR_BOOL(print_all_deadlocks, srv_print_all_deadlocks,
   NULL, NULL, FALSE);
 
 static MYSQL_SYSVAR_BOOL(use_stacktrace, srv_use_stacktrace,
-  PLUGIN_VAR_OPCMDARG,
-  "Print stacktrace on long semaphore wait (off by default)",
+  PLUGIN_VAR_NOCMDARG | PLUGIN_VAR_READONLY,
+  "Print stacktrace on long semaphore wait (off by default supported only on linux)",
   NULL, NULL, FALSE);
 
 static struct st_mysql_sys_var* innobase_system_variables[]= {

storage/xtradb/include/os0stacktrace.h

@@ -20,8 +20,10 @@ this program; if not, write to the Free Software Foundation, Inc.,
 #ifndef os0stacktrace_h
 #define os0stacktrace_h
 
-#ifndef __WIN__
+#ifdef __linux__
+#if HAVE_EXECINFO_H
 #include <execinfo.h>
+#endif
 #include <signal.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -38,5 +40,5 @@ os_stacktrace_print(
 	siginfo_t* info,     /*!< in: signal information */
 	void*      ucontext);/*!< in: signal context */
 
-#endif /* ! __WIN__ */
+#endif /*  __linux__ */
 #endif /* os0stacktrace.h */

storage/xtradb/os/os0stacktrace.c

@@ -19,9 +19,12 @@ this program; if not, write to the Free Software Foundation, Inc.,
 
 #include "os0thread.h"
 
-#ifdef __linux__
+#if defined (__linux__) && HAVE_BACKTRACE && HAVE_BACKTRACE_SYMBOLS
 
+#if HAVE_EXECINFO_H
 #include <execinfo.h>
+#endif
+
 #include <signal.h>
 #include <stdio.h>
 #include <stdlib.h>