2 * Copyright (c) 2002-2003 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
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
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
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 #include "sim/debug.hh"
35 #include "cpu/exec_context.hh"
36 #include "cpu/pc_event.hh"
37 #include "base/trace.hh"
38 #include "sim/universe.hh"
42 PCEventQueue::PCEventQueue()
45 PCEventQueue::~PCEventQueue()
49 PCEventQueue::remove(PCEvent
*event
)
52 range_t range
= equal_range(event
);
53 for (iterator i
= range
.first
; i
!= range
.second
; ++i
) {
55 DPRINTF(PCEvent
, "PC based event removed at %#x: %s\n",
56 event
->pc(), event
->descr());
66 PCEventQueue::schedule(PCEvent
*event
)
68 pc_map
.push_back(event
);
69 sort(pc_map
.begin(), pc_map
.end(), MapCompare());
71 DPRINTF(PCEvent
, "PC based event scheduled for %#x: %s\n",
72 event
->pc(), event
->descr());
78 PCEventQueue::doService(ExecContext
*xc
)
80 Addr pc
= xc
->regs
.pc
& ~0x3;
82 range_t range
= equal_range(pc
);
83 for (iterator i
= range
.first
; i
!= range
.second
; ++i
) {
84 // Make sure that the pc wasn't changed as the side effect of
85 // another event. This for example, prevents two invocations
86 // of the SkipFuncEvent. Maybe we should have separate PC
87 // event queues for each processor?
88 if (pc
!= (xc
->regs
.pc
& ~0x3))
91 DPRINTF(PCEvent
, "PC based event serviced at %#x: %s\n",
92 (*i
)->pc(), (*i
)->descr());
102 PCEventQueue::dump() const
104 const_iterator i
= pc_map
.begin();
105 const_iterator e
= pc_map
.end();
108 cprintf("%d: event at %#x: %s\n", curTick
, (*i
)->pc(),
112 PCEventQueue::range_t
113 PCEventQueue::equal_range(Addr pc
)
115 return std::equal_range(pc_map
.begin(), pc_map
.end(), pc
, MapCompare());
118 BreakPCEvent::BreakPCEvent(PCEventQueue
*q
, const std::string
&desc
, bool del
)
119 : PCEvent(q
, desc
), remove(del
)
124 BreakPCEvent::process(ExecContext
*xc
)
134 sched_break_pc_sys(System
*sys
, Addr addr
)
136 PCEvent
*event
= new BreakPCEvent(&sys
->pcEventQueue
, "debug break", true);
137 event
->schedule(addr
);
142 sched_break_pc(Addr addr
)
144 for (vector
<System
*>::iterator sysi
= System::systemList
.begin();
145 sysi
!= System::systemList
.end(); ++sysi
) {
146 sched_break_pc_sys(*sysi
, addr
);