2 * Copyright (c) 2002-2005 The Regents of The University of Michigan
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
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9 * redistributions in binary form must reproduce the above copyright
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11 * documentation and/or other materials provided with the distribution;
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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/thread_context.hh"
42 #include "cpu/pc_event.hh"
43 #include "sim/core.hh"
44 #include "sim/system.hh"
48 PCEventQueue::PCEventQueue()
51 PCEventQueue::~PCEventQueue()
55 PCEventQueue::remove(PCEvent
*event
)
58 range_t range
= equal_range(event
);
59 for (iterator i
= range
.first
; i
!= range
.second
; ++i
) {
61 DPRINTF(PCEvent
, "PC based event removed at %#x: %s\n",
62 event
->pc(), event
->descr());
72 PCEventQueue::schedule(PCEvent
*event
)
74 pc_map
.push_back(event
);
75 sort(pc_map
.begin(), pc_map
.end(), MapCompare());
77 DPRINTF(PCEvent
, "PC based event scheduled for %#x: %s\n",
78 event
->pc(), event
->descr());
84 PCEventQueue::doService(ThreadContext
*tc
)
86 Addr pc
= tc
->readPC() & ~0x3;
88 range_t range
= equal_range(pc
);
89 for (iterator i
= range
.first
; i
!= range
.second
; ++i
) {
90 // Make sure that the pc wasn't changed as the side effect of
91 // another event. This for example, prevents two invocations
92 // of the SkipFuncEvent. Maybe we should have separate PC
93 // event queues for each processor?
94 if (pc
!= (tc
->readPC() & ~0x3))
97 DPRINTF(PCEvent
, "PC based event serviced at %#x: %s\n",
98 (*i
)->pc(), (*i
)->descr());
108 PCEventQueue::dump() const
110 const_iterator i
= pc_map
.begin();
111 const_iterator e
= pc_map
.end();
114 cprintf("%d: event at %#x: %s\n", curTick
, (*i
)->pc(),
118 PCEventQueue::range_t
119 PCEventQueue::equal_range(Addr pc
)
121 return std::equal_range(pc_map
.begin(), pc_map
.end(), pc
, MapCompare());
124 BreakPCEvent::BreakPCEvent(PCEventQueue
*q
, const std::string
&desc
, Addr addr
,
126 : PCEvent(q
, desc
, addr
), remove(del
)
131 BreakPCEvent::process(ThreadContext
*tc
)
133 StringWrap
name(tc
->getCpuPtr()->name() + ".break_event");
134 DPRINTFN("break event %s triggered\n", descr());
142 sched_break_pc_sys(System
*sys
, Addr addr
)
144 new BreakPCEvent(&sys
->pcEventQueue
, "debug break", addr
, true);
148 sched_break_pc(Addr addr
)
150 for (vector
<System
*>::iterator sysi
= System::systemList
.begin();
151 sysi
!= System::systemList
.end(); ++sysi
) {
152 sched_break_pc_sys(*sysi
, addr
);