univ.i Prevent inlining of functions on HP-UX because GCC is broken there

configure.in	Prevent inlining of functions on HP-UX because GCC is broken there
trx0trx.h	Fix trx->error_info in MySQL debug version: Innobase and ha_innobase.cc saw a different size for pthread_mutex_t
trx0trx.c	Fix trx->error_info in MySQL debug version: Innobase and ha_innobase.cc saw a different size for pthread_mutex_t
ha_innobase.cc	Fix trx->error_info in MySQL debug version: Innobase and ha_innobase.cc saw a different size for pthread_mutex_t

BitKeeper/etc/logging_ok

 jani@janikt.pp.saunalahti.fi
+heikki@donna.mysql.fi

innobase/configure.in

 # Process this file with autoconf to produce a configure script
 AC_INIT
+AC_CANONICAL_SYSTEM
 AM_MAINTAINER_MODE
 AM_CONFIG_HEADER(ib_config.h)
 AM_INIT_AUTOMAKE(ib, 0.90)
 AC_PROG_CC
 AC_PROG_RANLIB
+AC_PROG_INSTALL
 AC_CHECK_HEADERS(aio.h)
 AC_CHECK_SIZEOF(int, 4)
 AC_C_INLINE
 AC_C_BIGENDIAN
 
+case "$target_os" in
+       hp*) AC_DEFINE(UNIV_MUST_NOT_INLINE, 1,
+	                     No inlining because gcc broken on HP-UX);;
+esac
 
 AC_OUTPUT(Makefile os/Makefile ut/Makefile btr/Makefile
 		buf/Makefile com/Makefile data/Makefile

innobase/include/trx0trx.h

@@ -24,6 +24,14 @@ saving CPU time. The kernel mutex contention is increased, however. */
 
 extern ulint	trx_n_mysql_transactions;
 
+/********************************************************************
+Retrieves the error_info field from a trx. */
+
+void*
+trx_get_error_info(
+/*===============*/
+		     /* out: the error info */
+	trx_t*  trx); /* in: trx object */
 /********************************************************************
 Creates and initializes a transaction object. */
 

innobase/include/univ.i

@@ -76,7 +76,7 @@ subdirectory of 'mysql'. */
 			/* the above option enables basic recovery debugging:
 			new allocated file pages are reset */
 
-#if (!defined(UNIV_DEBUG) && !defined(INSIDE_HA_INNOBASE_CC))
+#if (!defined(UNIV_DEBUG) && !defined(INSIDE_HA_INNOBASE_CC) && !defined(UNIV_MUST_NOT_INLINE))
 /* Definition for inline version */
 
 #ifdef __WIN__

innobase/trx/trx0trx.c

@@ -30,6 +30,17 @@ sess_t*		trx_dummy_sess = NULL;
 the kernel mutex */
 ulint	trx_n_mysql_transactions = 0;
 
+/********************************************************************
+Retrieves the error_info field from a trx. */
+
+void*
+trx_get_error_info(
+/*===============*/
+		     /* out: the error info */
+	trx_t*  trx) /* in: trx object */
+{
+        return(trx->error_info);
+}
 
 /********************************************************************
 Creates and initializes a transaction object. */

sql/ha_innobase.cc

@@ -2575,10 +2575,16 @@ ha_innobase::info(
 		}
 	}
 
+	/* The trx struct in Innobase contains a pthread mutex embedded:
+	in the debug version of MySQL that it replaced by a 'safe mutex'
+	which is of a different size. We have to use a function to access
+	trx fields. Otherwise trx->error_info will be a random
+	pointer and cause a seg fault. */
+
   	if (flag & HA_STATUS_ERRKEY) {
 		errkey = (unsigned int) row_get_mysql_key_number_for_index(
-						(dict_index_t*)
-						prebuilt->trx->error_info);
+				       (dict_index_t*)
+				       trx_get_error_info(prebuilt->trx));
   	}
 
   	DBUG_VOID_RETURN;