1/*
2 * Copyright (c) 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) 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 __ARCH_ALPHA_STACKTRACE_HH__
30#define __ARCH_ALPHA_STACKTRACE_HH__
31
32#include "base/trace.hh"
33#include "cpu/static_inst.hh"
34
35class ExecContext;
36class StackTrace;
37
38class ProcessInfo
39{
40 private:
41 ExecContext *xc;
42
43 int thread_info_size;
44 int task_struct_size;
45 int task_off;
46 int pid_off;
47 int name_off;
48
49 public:
50 ProcessInfo(ExecContext *_xc);
51
52 Addr task(Addr ksp) const;
53 int pid(Addr ksp) const;
54 std::string name(Addr ksp) const;
55};
56
57class StackTrace
58{
59 protected:
60 typedef TheISA::MachInst MachInst;
61 private:
62 ExecContext *xc;
63 std::vector<Addr> stack;
64
65 private:
66 bool isEntry(Addr addr);
67 bool decodePrologue(Addr sp, Addr callpc, Addr func, int &size, Addr &ra);
68 bool decodeSave(MachInst inst, int ®, int &disp);
69 bool decodeStack(MachInst inst, int &disp);
70
71 void trace(ExecContext *xc, bool is_call);
72
73 public:
74 StackTrace();
75 StackTrace(ExecContext *xc, StaticInstPtr inst);
76 ~StackTrace();
77
78 void clear()
79 {
80 xc = 0;
81 stack.clear();
82 }
83
84 bool valid() const { return xc != NULL; }
85 bool trace(ExecContext *xc, StaticInstPtr inst);
86
87 public:
88 const std::vector<Addr> &getstack() const { return stack; }
89
90 static const int user = 1;
91 static const int console = 2;
92 static const int unknown = 3;
93
94#if TRACING_ON
95 private:
96 void dump();
97
98 public:
99 void dprintf() { if (DTRACE(Stack)) dump(); }
100#else
101 public:
102 void dprintf() {}
103#endif
104};
105
106inline bool
107StackTrace::trace(ExecContext *xc, StaticInstPtr inst)
108{
109 if (!inst->isCall() && !inst->isReturn())
110 return false;
111
112 if (valid())
113 clear();
114
115 trace(xc, !inst->isReturn());
116 return true;
117}
118
119#endif // __ARCH_ALPHA_STACKTRACE_HH__
| 29 */
30
31#ifndef __ARCH_ALPHA_STACKTRACE_HH__
32#define __ARCH_ALPHA_STACKTRACE_HH__
33
34#include "base/trace.hh"
35#include "cpu/static_inst.hh"
36
37class ExecContext;
38class StackTrace;
39
40class ProcessInfo
41{
42 private:
43 ExecContext *xc;
44
45 int thread_info_size;
46 int task_struct_size;
47 int task_off;
48 int pid_off;
49 int name_off;
50
51 public:
52 ProcessInfo(ExecContext *_xc);
53
54 Addr task(Addr ksp) const;
55 int pid(Addr ksp) const;
56 std::string name(Addr ksp) const;
57};
58
59class StackTrace
60{
61 protected:
62 typedef TheISA::MachInst MachInst;
63 private:
64 ExecContext *xc;
65 std::vector<Addr> stack;
66
67 private:
68 bool isEntry(Addr addr);
69 bool decodePrologue(Addr sp, Addr callpc, Addr func, int &size, Addr &ra);
70 bool decodeSave(MachInst inst, int ®, int &disp);
71 bool decodeStack(MachInst inst, int &disp);
72
73 void trace(ExecContext *xc, bool is_call);
74
75 public:
76 StackTrace();
77 StackTrace(ExecContext *xc, StaticInstPtr inst);
78 ~StackTrace();
79
80 void clear()
81 {
82 xc = 0;
83 stack.clear();
84 }
85
86 bool valid() const { return xc != NULL; }
87 bool trace(ExecContext *xc, StaticInstPtr inst);
88
89 public:
90 const std::vector<Addr> &getstack() const { return stack; }
91
92 static const int user = 1;
93 static const int console = 2;
94 static const int unknown = 3;
95
96#if TRACING_ON
97 private:
98 void dump();
99
100 public:
101 void dprintf() { if (DTRACE(Stack)) dump(); }
102#else
103 public:
104 void dprintf() {}
105#endif
106};
107
108inline bool
109StackTrace::trace(ExecContext *xc, StaticInstPtr inst)
110{
111 if (!inst->isCall() && !inst->isReturn())
112 return false;
113
114 if (valid())
115 clear();
116
117 trace(xc, !inst->isReturn());
118 return true;
119}
120
121#endif // __ARCH_ALPHA_STACKTRACE_HH__
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