# 34082

r= rogerl
OS/2 bring up continues - support for debugging asserts on OS/2

js/src/jsutil.c

@@ -30,6 +30,13 @@
  * and other provisions required by the GPL.  If you do not delete
  * the provisions above, a recipient may use your version of this
  * file under either the NPL or the GPL.
+ *
+ * This Original Code has been modified by IBM Corporation. Modifications made by IBM
+ * described herein are Copyright (c) International Business Machines Corporation, 2000.
+ * Modifications to Mozilla code or documentation identified per MPL Section 3.3
+ *
+ * Date        Modified by     Description of modification
+ * 04/10/2000  IBM Corp.       Added DebugBreak() definitions for OS/2
  */
 
 /*
@@ -50,6 +57,26 @@
 #	 include "jsprf.h"
 #endif
 
+#if defined(XP_OS2) && defined(DEBUG)
+/* Added definitions for DebugBreak() for 2 different OS/2 compilers.  Doing
+ * the int3 on purpose for Visual Age so that a developer can step over the
+ * instruction if so desired.  Not always possible if trapping due to exception
+ * handling IBM-AKR
+ */
+#if defined(XP_OS2_VACPP)
+   #include <builtin.h>
+   #define DebugBreak() { _interrupt(3); }
+#elif defined(XP_OS2_EMX)
+   /* Force a trap */
+   #define DebugBreak() { int *pTrap=NULL; *pTrap = 1; }
+#else
+   #define DebugBreak()
+#endif
+
+#elif defined(XP_OS2)
+   #define DebugBreak()
+#endif /* XP_OS2 && DEBUG */
+
 #ifdef XP_MAC
 /*
  * PStrFromCStr converts the source C string to a destination
@@ -139,7 +166,7 @@ JS_PUBLIC_API(void) JS_Assert(const char *s, const char *file, JSIntn ln)
 #ifdef XP_MAC
     dprintf("Assertion failure: %s, at %s:%d\n", s, file, ln);
 #endif
-#ifdef WIN32
+#if defined(WIN32) || defined(XP_OS2)
     DebugBreak();
 #endif
 #ifndef XP_MAC