sim: watchpoints: use common sim_pc_get

Few arches implement STATE_WATCHPOINTS()->pc while all of them implement
sim_pc_get.  Lets switch the sim-watch core for monitoring pc events to
the sim_pc_get API so this module works for all ports, and then we can
delete this old back channel of snooping in the port's cpu state -- the
code needs the pointer to the pc storage so that it can read out bytes
and compare them to the watchrange.

This also fixes the logic on multi-cpu sims by removing the limitation
of only being able to watch CPU0's state.

1 files changed, 11 insertions, 0 deletions

diff --git a/sim/common/sim-events.h b/sim/common/sim-events.h
index 823fd8c..7a5fc96 100644
--- a/sim/common/sim-events.h
+++ b/sim/common/sim-events.h
@@ -149,6 +149,17 @@ extern sim_event *sim_events_watch_clock
  void *data);
 
 
+/* Schedule an event when a PC matches a range.  */
+
+extern sim_event *sim_events_watch_pc
+(SIM_DESC sd,
+ int is_within,
+ unsigned64 lb,
+ unsigned64 ub,
+ sim_event_handler *handler,
+ void *data);
+
+
 /* Schedule an event when the test (IS_WITHIN == (VAL >= LB && VAL <=
    UB)) of the NR_BYTES value at HOST_ADDR with BYTE_ORDER endian is
    true.