1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
|
/*
* Copyright (c) 2002-2005 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Authors: Nathan Binkert
* Steve Reinhardt
*/
#ifndef __PC_EVENT_HH__
#define __PC_EVENT_HH__
#include <vector>
#include "base/logging.hh"
#include "base/types.hh"
class ThreadContext;
class PCEventQueue;
class System;
class PCEvent
{
protected:
std::string description;
PCEventQueue *queue;
Addr evpc;
public:
PCEvent(PCEventQueue *q, const std::string &desc, Addr pc);
virtual ~PCEvent() { if (queue) remove(); }
// for DPRINTF
virtual const std::string name() const { return description; }
std::string descr() const { return description; }
Addr pc() const { return evpc; }
bool remove();
virtual void process(ThreadContext *tc) = 0;
};
class PCEventQueue
{
protected:
typedef PCEvent * record_t;
class MapCompare {
public:
bool operator()(const record_t &l, const record_t &r) const {
return l->pc() < r->pc();
}
bool operator()(const record_t &l, Addr pc) const {
return l->pc() < pc;
}
bool operator()(Addr pc, const record_t &r) const {
return pc < r->pc();
}
};
typedef std::vector<record_t> map_t;
public:
typedef map_t::iterator iterator;
typedef map_t::const_iterator const_iterator;
protected:
typedef std::pair<iterator, iterator> range_t;
typedef std::pair<const_iterator, const_iterator> const_range_t;
protected:
map_t pc_map;
bool doService(ThreadContext *tc);
public:
PCEventQueue();
~PCEventQueue();
bool remove(PCEvent *event);
bool schedule(PCEvent *event);
bool service(ThreadContext *tc)
{
if (pc_map.empty())
return false;
return doService(tc);
}
range_t equal_range(Addr pc);
range_t equal_range(PCEvent *event) { return equal_range(event->pc()); }
void dump() const;
};
inline
PCEvent::PCEvent(PCEventQueue *q, const std::string &desc, Addr pc)
: description(desc), queue(q), evpc(pc)
{
queue->schedule(this);
}
inline bool
PCEvent::remove()
{
if (!queue)
panic("cannot remove an uninitialized event;");
return queue->remove(this);
}
class BreakPCEvent : public PCEvent
{
protected:
bool remove;
public:
BreakPCEvent(PCEventQueue *q, const std::string &desc, Addr addr,
bool del = false);
virtual void process(ThreadContext *tc);
};
void sched_break_pc_sys(System *sys, Addr addr);
void sched_break_pc(Addr addr);
class PanicPCEvent : public PCEvent
{
public:
PanicPCEvent(PCEventQueue *q, const std::string &desc, Addr pc);
virtual void process(ThreadContext *tc);
};
#endif // __PC_EVENT_HH__
|
