sim: trace: centralize the system tracing

First we convert the ETRACE_P to STRACE_EVENTS_P.  This means we move from
using the sim_events.trace storage to the common sim_state_base.trace_data
array.  With that deleted, the common trace init code can be simplified so
the sim state works the same as the sim cpu.

4 files changed, 14 insertions, 17 deletions

diff --git a/sim/common/ChangeLog b/sim/common/ChangeLog
index 35f08bb..a20f92d7 100644
--- a/sim/common/ChangeLog
+++ b/sim/common/ChangeLog
@@ -1,5 +1,14 @@
 2015-06-11  Mike Frysinger  <vapier@gentoo.org>
 
+	* sim-events.c (ETRACE_P): Delete.
+	(ETRACE): Change ETRACE_P to STRACE_EVENTS_P(sd).
+	(update_time_from_event, sim_events_schedule_vtracef): Likewise.
+	* sim-events.h (struct _sim_events): Delete trace member.
+	* sim-trace.c (set_trace_option_mask): Delete trace_nr check and
+	always set STATE_TRACE_FLAGS(sd)[trace_nr] element.
+
+2015-06-11  Mike Frysinger  <vapier@gentoo.org>
+
 	* sim-trace.h (STRACE_ANY_P, STRACE_INSN_P, STRACE_DECODE_P,
 	STRACE_EXTRACT_P, STRACE_LINENUM_P, STRACE_MEMORY_P, STRACE_MODEL_P,
 	STRACE_ALU_P, STRACE_CORE_P, STRACE_EVENTS_P, STRACE_FPU_P,
diff --git a/sim/common/sim-events.c b/sim/common/sim-events.c
index d7ca0df..fc52575 100644
--- a/sim/common/sim-events.c
+++ b/sim/common/sim-events.c
@@ -140,14 +140,11 @@ struct _sim_event {
 
 #define _ETRACE sd, NULL
 
-#undef ETRACE_P
-#define ETRACE_P (WITH_TRACE && STATE_EVENTS (sd)->trace)
-
 #undef ETRACE
 #define ETRACE(ARGS) \
 do \
   { \
-    if (ETRACE_P) \
+    if (STRACE_EVENTS_P (sd)) \
       { \
         if (STRACE_DEBUG_P (sd)) \
 	  { \
@@ -409,7 +406,7 @@ update_time_from_event (SIM_DESC sd)
       events->time_of_event = current_time - 1;
       events->time_from_event = -1;
     }
-  if (ETRACE_P)
+  if (STRACE_EVENTS_P (sd))
     {
       sim_event *event;
       int i;
@@ -521,7 +518,7 @@ sim_events_schedule_vtracef (SIM_DESC sd,
   new_event->data = data;
   new_event->handler = handler;
   new_event->watching = watch_timer;
-  if (fmt == NULL || !ETRACE_P || vasprintf (&new_event->trace, fmt, ap) < 0)
+  if (fmt == NULL || !STRACE_EVENTS_P (sd) || vasprintf (&new_event->trace, fmt, ap) < 0)
     new_event->trace = NULL;
   insert_sim_event (sd, new_event, delta_time);
   ETRACE ((_ETRACE,
diff --git a/sim/common/sim-events.h b/sim/common/sim-events.h
index 9c56cab..6faa5cc 100644
--- a/sim/common/sim-events.h
+++ b/sim/common/sim-events.h
@@ -94,7 +94,6 @@ struct _sim_events {
   SIM_ELAPSED_TIME resume_wallclock;
   signed64 time_of_event;
   signed64 time_from_event;
-  int trace;
 };
 
 
diff --git a/sim/common/sim-trace.c b/sim/common/sim-trace.c
index a706f1d..915965d 100644
--- a/sim/common/sim-trace.c
+++ b/sim/common/sim-trace.c
@@ -173,22 +173,14 @@ set_trace_option_mask (SIM_DESC sd, const char *name, int mask, const char *arg)
 	}
     }
 
-  /* update applicable trace bits */
+  /* Update applicable trace bits.  */
   for (trace_nr = 0; trace_nr < MAX_TRACE_VALUES; ++trace_nr)
     {
       if ((mask & (1 << trace_nr)) == 0)
 	continue;
 
       /* Set non-cpu specific values.  */
-      switch (trace_nr)
-	{
-	case TRACE_EVENTS_IDX:
-	  STATE_EVENTS (sd)->trace = trace_val;
-	  break;
-	case TRACE_DEBUG_IDX:
-	  STATE_TRACE_FLAGS (sd)[trace_nr] = trace_val;
-	  break;
-	}
+      STATE_TRACE_FLAGS (sd)[trace_nr] = trace_val;
 
       /* Set cpu values.  */
       for (cpu_nr = 0; cpu_nr < MAX_NR_PROCESSORS; cpu_nr++)