[Patch 6/7]: 68HC11 port of gdb (sim-misc single step fix)

[Stephane Carrez <Stephane dot Carrez at free dot fr>]

Hi!

This patch fixes the following problems with the simulator common
framework:

 - nrun.c does not handle -v option properly (as run.c does)

 - hw_find_integer_array_property is defined with a wrong prototype
   which breaks when signed_word != signed_cell

 - sim_resume must install the single step event after
   having processed some current pending events.


	Stephane

2000-06-25  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

	* nrun.c (main): Print the simulator statistics only in
	verbose mode.
	* hw-properties.h (hw_find_integer_array_property): Fix
	prototype (use signed_cell).
	* sim-resume.c (sim_resume): Install the single step event
	after having processed some current pending events. It may happen
	that some ticks are not yet processed after a break/single step
	command from GDB. In that case, installing the single step event
	before processing pending events will activate the single step
	without actually having executed any instruction.
diff -Nrup --exclude-from=gdb-exclude.lst /src/gnu/cygnus/gdb/sim/common/hw-properties.h gdb/sim/common/hw-properties.h
--- /src/gnu/cygnus/gdb/sim/common/hw-properties.h	Fri Apr 16 03:34:57 1999
+++ gdb/sim/common/hw-properties.h	Sun Jun 25 00:21:15 2000
@@ -166,7 +166,7 @@ int hw_find_integer_array_property
 (struct hw *me,
  const char *property,
  unsigned index,
- signed_word *integer);
+ signed_cell *integer);
 
 
 
diff -Nrup --exclude-from=gdb-exclude.lst /src/gnu/cygnus/gdb/sim/common/nrun.c gdb/sim/common/nrun.c
--- /src/gnu/cygnus/gdb/sim/common/nrun.c	Mon Jul 12 13:13:54 1999
+++ gdb/sim/common/nrun.c	Sun Jun 25 12:39:31 2000
@@ -165,7 +165,8 @@ main (int argc, char **argv)
       
     }
   /* Print any stats the simulator collected.  */
-  sim_info (sd, 0);
+  if (STATE_VERBOSE_P (sd))
+    sim_info (sd, 0);
   
   /* Shutdown the simulator.  */
   sim_close (sd, 0);
diff -Nrup --exclude-from=gdb-exclude.lst /src/gnu/cygnus/gdb/sim/common/sim-resume.c gdb/sim/common/sim-resume.c
--- /src/gnu/cygnus/gdb/sim/common/sim-resume.c	Mon Jul 12 13:14:09 1999
+++ gdb/sim/common/sim-resume.c	Mon Feb 21 09:00:23 2000
@@ -51,8 +51,6 @@ sim_resume (SIM_DESC sd,
       sim_events_deschedule (sd, engine->stepper);
       engine->stepper = NULL;
     }
-  if (step)
-    engine->stepper = sim_events_schedule (sd, 1, has_stepped, sd);
 
   sim_module_resume (sd);
 
@@ -69,6 +67,9 @@ sim_resume (SIM_DESC sd,
       sim_events_preprocess (sd, last_cpu_nr >= nr_cpus, next_cpu_nr >= nr_cpus);
       if (next_cpu_nr >= nr_cpus)
 	next_cpu_nr = 0;
+
+      if (step)
+	engine->stepper = sim_events_schedule (sd, 1, has_stepped, sd);
 
       /* Only deliver the siggnal ]sic] the first time through - don't
          re-deliver any siggnal during a restart. */