2 * Copyright (c) 2002-2005 The Regents of The University of Michigan
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34 #include "base/trace.hh"
35 #include "cpu/base.hh"
36 #include "cpu/exec_context.hh"
37 #include "cpu/pc_event.hh"
38 #include "sim/debug.hh"
39 #include "sim/root.hh"
43 PCEventQueue::PCEventQueue()
46 PCEventQueue::~PCEventQueue()
50 PCEventQueue::remove(PCEvent
*event
)
53 range_t range
= equal_range(event
);
54 for (iterator i
= range
.first
; i
!= range
.second
; ++i
) {
56 DPRINTF(PCEvent
, "PC based event removed at %#x: %s\n",
57 event
->pc(), event
->descr());
67 PCEventQueue::schedule(PCEvent
*event
)
69 pc_map
.push_back(event
);
70 sort(pc_map
.begin(), pc_map
.end(), MapCompare());
72 DPRINTF(PCEvent
, "PC based event scheduled for %#x: %s\n",
73 event
->pc(), event
->descr());
79 PCEventQueue::doService(ExecContext
*xc
)
81 Addr pc
= xc
->regs
.pc
& ~0x3;
83 range_t range
= equal_range(pc
);
84 for (iterator i
= range
.first
; i
!= range
.second
; ++i
) {
85 // Make sure that the pc wasn't changed as the side effect of
86 // another event. This for example, prevents two invocations
87 // of the SkipFuncEvent. Maybe we should have separate PC
88 // event queues for each processor?
89 if (pc
!= (xc
->regs
.pc
& ~0x3))
92 DPRINTF(PCEvent
, "PC based event serviced at %#x: %s\n",
93 (*i
)->pc(), (*i
)->descr());
103 PCEventQueue::dump() const
105 const_iterator i
= pc_map
.begin();
106 const_iterator e
= pc_map
.end();
109 cprintf("%d: event at %#x: %s\n", curTick
, (*i
)->pc(),
113 PCEventQueue::range_t
114 PCEventQueue::equal_range(Addr pc
)
116 return std::equal_range(pc_map
.begin(), pc_map
.end(), pc
, MapCompare());
119 BreakPCEvent::BreakPCEvent(PCEventQueue
*q
, const std::string
&desc
, bool del
)
120 : PCEvent(q
, desc
), remove(del
)
125 BreakPCEvent::process(ExecContext
*xc
)
127 StringWrap
name(xc
->cpu
->name() + ".break_event");
128 DPRINTFN("break event %s triggered\n", descr());
137 sched_break_pc_sys(System
*sys
, Addr addr
)
139 PCEvent
*event
= new BreakPCEvent(&sys
->pcEventQueue
, "debug break", true);
140 event
->schedule(addr
);
145 sched_break_pc(Addr addr
)
147 for (vector
<System
*>::iterator sysi
= System::systemList
.begin();
148 sysi
!= System::systemList
.end(); ++sysi
) {
149 sched_break_pc_sys(*sysi
, addr
);