Hi,

this patch fixes a problem in the ARM simulator when executing a mode
change. Please see attached emails for explanation.
The bug fix skips increasing state->Reg[15] by 2 instructions during a mode
change.

This is the patch:
--- gdb-5.3.orig/sim/arm/armemu.c	2002-07-05 16:12:01.000000000 +0200
+++ gdb-5.3/sim/arm/armemu.c	2003-04-25 16:17:19.000000000 +0200
@@ -3556,7 +3556,15 @@ check_PMUintr:
 	state->Emulate = STOP;
       /* If we have changed mode, allow the PC to advance before stopping.
*/
       else if (state->Emulate == CHANGEMODE)
-	continue;
+	{
+	  pc = state->Reg[15];
+#ifndef MODE32
+	  pc = pc & R15PCBITS;
+#endif
+	  state->Reg[15] = pc;
+	  state->NextInstr = RESUME;
+	  break;
+	}
       else if (state->Emulate != RUN)
 	break;
     }


Regards,
Peter Hornung

----------------------------------------------------------------------------
-------------

Peter Hornung, Siemens A&D PT1 D1,
Siemensstraße 2, 90766 Fürth, Germany
E-Mail: Peter_Hornung@siemens.com
Tel: +49-911-978-2013, Fax: +49-911-978-2035