2 * Copyright (c) 2002-2005 The Regents of The University of Michigan
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6 * modification, are permitted provided that the following conditions are
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9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 * Authors: Nathan Binkert
37 #include "base/debug.hh"
38 #include "base/trace.hh"
39 #include "config/full_system.hh"
40 #include "cpu/base.hh"
41 #include "cpu/pc_event.hh"
42 #include "cpu/thread_context.hh"
43 #include "debug/PCEvent.hh"
44 #include "sim/core.hh"
45 #include "sim/system.hh"
49 PCEventQueue::PCEventQueue()
52 PCEventQueue::~PCEventQueue()
56 PCEventQueue::remove(PCEvent
*event
)
59 range_t range
= equal_range(event
);
60 for (iterator i
= range
.first
; i
!= range
.second
; ++i
) {
62 DPRINTF(PCEvent
, "PC based event removed at %#x: %s\n",
63 event
->pc(), event
->descr());
73 PCEventQueue::schedule(PCEvent
*event
)
75 pc_map
.push_back(event
);
76 sort(pc_map
.begin(), pc_map
.end(), MapCompare());
78 DPRINTF(PCEvent
, "PC based event scheduled for %#x: %s\n",
79 event
->pc(), event
->descr());
85 PCEventQueue::doService(ThreadContext
*tc
)
87 // This will fail to break on Alpha PALcode addresses, but that is
89 Addr pc
= tc
->instAddr();
91 range_t range
= equal_range(pc
);
92 for (iterator i
= range
.first
; i
!= range
.second
; ++i
) {
93 // Make sure that the pc wasn't changed as the side effect of
94 // another event. This for example, prevents two invocations
95 // of the SkipFuncEvent. Maybe we should have separate PC
96 // event queues for each processor?
97 if (pc
!= tc
->instAddr())
100 DPRINTF(PCEvent
, "PC based event serviced at %#x: %s\n",
101 (*i
)->pc(), (*i
)->descr());
111 PCEventQueue::dump() const
113 const_iterator i
= pc_map
.begin();
114 const_iterator e
= pc_map
.end();
117 cprintf("%d: event at %#x: %s\n", curTick(), (*i
)->pc(),
121 PCEventQueue::range_t
122 PCEventQueue::equal_range(Addr pc
)
124 return std::equal_range(pc_map
.begin(), pc_map
.end(), pc
, MapCompare());
127 BreakPCEvent::BreakPCEvent(PCEventQueue
*q
, const std::string
&desc
, Addr addr
,
129 : PCEvent(q
, desc
, addr
), remove(del
)
134 BreakPCEvent::process(ThreadContext
*tc
)
136 StringWrap
name(tc
->getCpuPtr()->name() + ".break_event");
137 DPRINTFN("break event %s triggered\n", descr());
145 sched_break_pc_sys(System
*sys
, Addr addr
)
147 new BreakPCEvent(&sys
->pcEventQueue
, "debug break", addr
, true);
151 sched_break_pc(Addr addr
)
153 for (vector
<System
*>::iterator sysi
= System::systemList
.begin();
154 sysi
!= System::systemList
.end(); ++sysi
) {
155 sched_break_pc_sys(*sysi
, addr
);