emulate callpal halt for non FULL_SYSTEM

in the process make m5_exit more generic

arch/alpha/ev5.cc:
arch/alpha/ev5.hh:
    There's no reason that this needs to be in an arch specific file
arch/alpha/isa_desc:
    m5_exit -> SimExit
    Emulate callpal halt and cause the simulator to exit
    while we're at it, sort #includes
sim/sim_events.cc:
sim/sim_events.hh:
    move the m5_exit function here, renaming it to SimExit.
    Also Allow the caller to pass in the termination message.

--HG--
extra : convert_revision : 54b43b17a412ab387b8672c27ef0b04fce10ee15

arch/alpha/ev5.cc

@@ -54,12 +54,6 @@ AlphaISA::initCPU(RegFile *regs)
     regs->npc = regs->pc + sizeof(MachInst);
 }
 
-void
-m5_exit()
-{
-    static SimExitEvent event("m5_exit instruction encountered");
-}
-
 ////////////////////////////////////////////////////////////////////////
 //
 // alpha exceptions - value equals trap address, update with MD_FAULT_TYPE

arch/alpha/ev5.hh

@@ -9,8 +9,6 @@
 
 #include "targetarch/isa_traits.hh"
 
-void m5_exit();
-
 ////////////////////////////////////////////////////////////////////////
 //
 //

arch/alpha/isa_desc

@@ -18,17 +18,17 @@ let {{
 #include <fenv.h>
 #endif
 
-#include "cpu/static_inst.hh"
 #include "base/cprintf.hh"
 #include "base/misc.hh"
-#include "cpu/full_cpu/op_class.hh"
-
 #include "cpu/exec_context.hh"
-#include "cpu/simple_cpu/simple_cpu.hh"
-#include "cpu/full_cpu/spec_state.hh"
-#include "cpu/full_cpu/full_cpu.hh"
 #include "cpu/exetrace.hh"
+#include "cpu/full_cpu/full_cpu.hh"
+#include "cpu/full_cpu/op_class.hh"
+#include "cpu/full_cpu/spec_state.hh"
+#include "cpu/simple_cpu/simple_cpu.hh"
+#include "cpu/static_inst.hh"
 #include "sim/annotation.hh"
+#include "sim/sim_events.hh"
 
 #ifdef FULL_SYSTEM
 #include "targetarch/ev5.hh"
@@ -2356,6 +2356,10 @@ decode OPCODE default Unknown::unknown() {
 #else
     0x00: decode PALFUNC {
 	format EmulatedCallPal {
+	    0x00: halt ({{
+		if (!xc->misspeculating()) 
+		    SimExit("halt instruction encountered");
+	    }});
 	    0x83: callsys({{ xc->syscall(); }});
 	    // Read uniq reg into ABI return value register (r0)
 	    0x9e: rduniq({{ R0 = Runiq; }});
@@ -2414,7 +2418,7 @@ decode OPCODE default Unknown::unknown() {
 	    }}, No_OpClass);
 	    0x20: m5exit({{
 		if (!xc->misspeculating())
-		    m5_exit();
+		    SimExit("m5_exit instruction encountered");
 	    }}, No_OpClass);
             0x30: initparam({{ Ra = xc->cpu->system->init_param; }});
             0x40: resetstats({{

sim/sim_events.cc

@@ -63,6 +63,11 @@ SimExitEvent::description()
     return "simulation termination";
 }
 
+void
+SimExit(const char *message)
+{
+    static SimExitEvent event(message);
+}
 
 //
 // constructor: automatically schedules at specified time

sim/sim_events.hh

@@ -66,6 +66,8 @@ class SimExitEvent : public Event
     virtual const char *description();
 };
 
+void SimExit(const char *message);
+
 //
 // Event class to terminate simulation after 'n' related events have
 // occurred using a shared counter: used to terminate when *all*