1/*
2 * Copyright (c) 2002-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
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.
15 *
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.
| 1/*
2 * Copyright (c) 2002-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
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.
15 *
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.
|
27 */
28
29#ifndef __REMOTE_GDB_HH__
30#define __REMOTE_GDB_HH__
31
32#include <map>
33
34#include "base/kgdb.h"
35#include "cpu/pc_event.hh"
36#include "base/pollevent.hh"
37#include "base/socket.hh"
38
39class System;
40class ExecContext;
41class PhysicalMemory;
42
43class GDBListener;
44class RemoteGDB
45{
46 protected:
47 typedef TheISA::MachInst MachInst;
48 private:
49 friend void debugger();
50 friend class GDBListener;
51
52 protected:
53 class Event : public PollEvent
54 {
55 protected:
56 RemoteGDB *gdb;
57
58 public:
59 Event(RemoteGDB *g, int fd, int e);
60 void process(int revent);
61 };
62
63 friend class Event;
64 Event *event;
65 GDBListener *listener;
66 int number;
67
68 protected:
69 int fd;
70 uint64_t gdbregs[KGDB_NUMREGS];
71
72 protected:
73#ifdef notyet
74 label_t recover;
75#endif
76 bool active;
77 bool attached;
78
79 System *system;
80 PhysicalMemory *pmem;
81 ExecContext *context;
82
83 protected:
84 uint8_t getbyte();
85 void putbyte(uint8_t b);
86
87 int recv(char *data, int len);
88 void send(const char *data);
89
90 protected:
91 // Machine memory
92 bool read(Addr addr, size_t size, char *data);
93 bool write(Addr addr, size_t size, const char *data);
94
95 template <class T> T read(Addr addr);
96 template <class T> void write(Addr addr, T data);
97
98 public:
99 RemoteGDB(System *system, ExecContext *context);
100 ~RemoteGDB();
101
102 void replaceExecContext(ExecContext *xc) { context = xc; }
103
104 void attach(int fd);
105 void detach();
106 bool isattached();
107
108 bool acc(Addr addr, size_t len);
109 static int signal(int type);
110 bool trap(int type);
111
112 protected:
113 void getregs();
114 void setregs();
115
116 void clearSingleStep();
117 void setSingleStep();
118
119 PCEventQueue *getPcEventQueue();
120
121 protected:
122 class HardBreakpoint : public PCEvent
123 {
124 private:
125 RemoteGDB *gdb;
126
127 public:
128 int refcount;
129
130 public:
131 HardBreakpoint(RemoteGDB *_gdb, Addr addr);
132 std::string name() { return gdb->name() + ".hwbkpt"; }
133
134 virtual void process(ExecContext *xc);
135 };
136 friend class HardBreakpoint;
137
138 typedef std::map<Addr, HardBreakpoint *> break_map_t;
139 typedef break_map_t::iterator break_iter_t;
140 break_map_t hardBreakMap;
141
142 bool insertSoftBreak(Addr addr, size_t len);
143 bool removeSoftBreak(Addr addr, size_t len);
144 bool insertHardBreak(Addr addr, size_t len);
145 bool removeHardBreak(Addr addr, size_t len);
146
147 protected:
148 struct TempBreakpoint {
149 Addr address; // set here
150 MachInst bkpt_inst; // saved instruction at bkpt
151 int init_count; // number of times to skip bkpt
152 int count; // current count
153 };
154
155 TempBreakpoint notTakenBkpt;
156 TempBreakpoint takenBkpt;
157
158 void clearTempBreakpoint(TempBreakpoint &bkpt);
159 void setTempBreakpoint(TempBreakpoint &bkpt, Addr addr);
160
161 public:
162 std::string name();
163};
164
165template <class T>
166inline T
167RemoteGDB::read(Addr addr)
168{
169 T temp;
170 read(addr, sizeof(T), (char *)&temp);
171 return temp;
172}
173
174template <class T>
175inline void
176RemoteGDB::write(Addr addr, T data)
177{ write(addr, sizeof(T), (const char *)&data); }
178
179class GDBListener
180{
181 protected:
182 class Event : public PollEvent
183 {
184 protected:
185 GDBListener *listener;
186
187 public:
188 Event(GDBListener *l, int fd, int e);
189 void process(int revent);
190 };
191
192 friend class Event;
193 Event *event;
194
195 protected:
196 ListenSocket listener;
197 RemoteGDB *gdb;
198 int port;
199
200 public:
201 GDBListener(RemoteGDB *g, int p);
202 ~GDBListener();
203
204 void accept();
205 void listen();
206 std::string name();
207};
208
209#endif /* __REMOTE_GDB_H__ */
| 29 */
30
31#ifndef __REMOTE_GDB_HH__
32#define __REMOTE_GDB_HH__
33
34#include <map>
35
36#include "base/kgdb.h"
37#include "cpu/pc_event.hh"
38#include "base/pollevent.hh"
39#include "base/socket.hh"
40
41class System;
42class ExecContext;
43class PhysicalMemory;
44
45class GDBListener;
46class RemoteGDB
47{
48 protected:
49 typedef TheISA::MachInst MachInst;
50 private:
51 friend void debugger();
52 friend class GDBListener;
53
54 protected:
55 class Event : public PollEvent
56 {
57 protected:
58 RemoteGDB *gdb;
59
60 public:
61 Event(RemoteGDB *g, int fd, int e);
62 void process(int revent);
63 };
64
65 friend class Event;
66 Event *event;
67 GDBListener *listener;
68 int number;
69
70 protected:
71 int fd;
72 uint64_t gdbregs[KGDB_NUMREGS];
73
74 protected:
75#ifdef notyet
76 label_t recover;
77#endif
78 bool active;
79 bool attached;
80
81 System *system;
82 PhysicalMemory *pmem;
83 ExecContext *context;
84
85 protected:
86 uint8_t getbyte();
87 void putbyte(uint8_t b);
88
89 int recv(char *data, int len);
90 void send(const char *data);
91
92 protected:
93 // Machine memory
94 bool read(Addr addr, size_t size, char *data);
95 bool write(Addr addr, size_t size, const char *data);
96
97 template <class T> T read(Addr addr);
98 template <class T> void write(Addr addr, T data);
99
100 public:
101 RemoteGDB(System *system, ExecContext *context);
102 ~RemoteGDB();
103
104 void replaceExecContext(ExecContext *xc) { context = xc; }
105
106 void attach(int fd);
107 void detach();
108 bool isattached();
109
110 bool acc(Addr addr, size_t len);
111 static int signal(int type);
112 bool trap(int type);
113
114 protected:
115 void getregs();
116 void setregs();
117
118 void clearSingleStep();
119 void setSingleStep();
120
121 PCEventQueue *getPcEventQueue();
122
123 protected:
124 class HardBreakpoint : public PCEvent
125 {
126 private:
127 RemoteGDB *gdb;
128
129 public:
130 int refcount;
131
132 public:
133 HardBreakpoint(RemoteGDB *_gdb, Addr addr);
134 std::string name() { return gdb->name() + ".hwbkpt"; }
135
136 virtual void process(ExecContext *xc);
137 };
138 friend class HardBreakpoint;
139
140 typedef std::map<Addr, HardBreakpoint *> break_map_t;
141 typedef break_map_t::iterator break_iter_t;
142 break_map_t hardBreakMap;
143
144 bool insertSoftBreak(Addr addr, size_t len);
145 bool removeSoftBreak(Addr addr, size_t len);
146 bool insertHardBreak(Addr addr, size_t len);
147 bool removeHardBreak(Addr addr, size_t len);
148
149 protected:
150 struct TempBreakpoint {
151 Addr address; // set here
152 MachInst bkpt_inst; // saved instruction at bkpt
153 int init_count; // number of times to skip bkpt
154 int count; // current count
155 };
156
157 TempBreakpoint notTakenBkpt;
158 TempBreakpoint takenBkpt;
159
160 void clearTempBreakpoint(TempBreakpoint &bkpt);
161 void setTempBreakpoint(TempBreakpoint &bkpt, Addr addr);
162
163 public:
164 std::string name();
165};
166
167template <class T>
168inline T
169RemoteGDB::read(Addr addr)
170{
171 T temp;
172 read(addr, sizeof(T), (char *)&temp);
173 return temp;
174}
175
176template <class T>
177inline void
178RemoteGDB::write(Addr addr, T data)
179{ write(addr, sizeof(T), (const char *)&data); }
180
181class GDBListener
182{
183 protected:
184 class Event : public PollEvent
185 {
186 protected:
187 GDBListener *listener;
188
189 public:
190 Event(GDBListener *l, int fd, int e);
191 void process(int revent);
192 };
193
194 friend class Event;
195 Event *event;
196
197 protected:
198 ListenSocket listener;
199 RemoteGDB *gdb;
200 int port;
201
202 public:
203 GDBListener(RemoteGDB *g, int p);
204 ~GDBListener();
205
206 void accept();
207 void listen();
208 std::string name();
209};
210
211#endif /* __REMOTE_GDB_H__ */
|