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stacktrace.hh
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1 /*
2  * Copyright (c) 2005 The Regents of The University of Michigan
3  * Copyright (c) 2007-2008 The Florida State University
4  * Copyright (c) 2009 The University of Edinburgh
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions are
9  * met: redistributions of source code must retain the above copyright
10  * notice, this list of conditions and the following disclaimer;
11  * redistributions in binary form must reproduce the above copyright
12  * notice, this list of conditions and the following disclaimer in the
13  * documentation and/or other materials provided with the distribution;
14  * neither the name of the copyright holders nor the names of its
15  * contributors may be used to endorse or promote products derived from
16  * this software without specific prior written permission.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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29  *
30  * Authors: Ali Saidi
31  * Stephen Hines
32  * Timothy M. Jones
33  */
34 
35 #ifndef __ARCH_POWER_STACKTRACE_HH__
36 #define __ARCH_POWER_STACKTRACE_HH__
37 
38 #include "base/trace.hh"
39 #include "cpu/static_inst.hh"
40 #include "debug/Stack.hh"
41 
42 class ThreadContext;
43 class StackTrace;
44 
45 namespace PowerISA
46 {
47 
49 {
50  public:
52 
53  Addr task(Addr ksp) const;
54  int pid(Addr ksp) const;
55  std::string name(Addr ksp) const;
56 };
57 
59 {
60  protected:
62  private:
65 
66  private:
67  bool isEntry(Addr addr);
68  bool decodePrologue(Addr sp, Addr callpc, Addr func, int &size, Addr &ra);
69  bool decodeSave(MachInst inst, int &reg, int &disp);
70  bool decodeStack(MachInst inst, int &disp);
71 
72  void trace(ThreadContext *tc, bool is_call);
73 
74  public:
75  StackTrace();
77  ~StackTrace();
78 
79  void
81  {
82  tc = 0;
83  stack.clear();
84  }
85 
86  bool
87  valid() const
88  {
89  return tc != NULL;
90  }
91 
92  bool trace(ThreadContext *tc, const StaticInstPtr &inst);
93 
94  public:
95  const std::vector<Addr> &
96  getstack() const
97  {
98  return stack;
99  }
100 
101  static const int user = 1;
102  static const int console = 2;
103  static const int unknown = 3;
104 
105 #if TRACING_ON
106  private:
107  void dump();
108 
109  public:
110  void
111  dprintf()
112  {
113  if (DTRACE(Stack))
114  dump();
115  }
116 #else
117  public:
118  void
120  {
121  }
122 #endif
123 };
124 
125 inline bool
127 {
128  if (!inst->isCall() && !inst->isReturn())
129  return false;
130 
131  if (valid())
132  clear();
133 
134  trace(tc, !inst->isReturn());
135  return true;
136 }
137 
138 } // namespace PowerISA
139 
140 #endif // __ARCH_POWER_STACKTRACE_HH__
Bitfield< 5, 3 > reg
Definition: types.hh:89
int pid(Addr ksp) const
Definition: stacktrace.cc:54
bool decodeStack(MachInst inst, int &disp)
Definition: stacktrace.cc:98
ip6_addr_t addr
Definition: inet.hh:335
bool isCall() const
Definition: static_inst.hh:146
Bitfield< 0 > sp
Definition: miscregs.hh:1386
static const int unknown
Definition: stacktrace.hh:103
ThreadContext is the external interface to all thread state for anything outside of the CPU...
uint32_t MachInst
Definition: types.hh:40
bool decodeSave(MachInst inst, int &reg, int &disp)
Definition: stacktrace.cc:105
const std::vector< Addr > & getstack() const
Definition: stacktrace.hh:96
#define DTRACE(x)
Definition: trace.hh:210
void trace(ThreadContext *tc, bool is_call)
Definition: stacktrace.cc:85
bool isEntry(Addr addr)
Definition: stacktrace.cc:91
uint64_t Addr
Address type This will probably be moved somewhere else in the near future.
Definition: types.hh:142
Bitfield< 20, 16 > ra
Definition: types.hh:47
ProcessInfo(ThreadContext *_tc)
Definition: stacktrace.cc:41
std::vector< Addr > stack
Definition: stacktrace.hh:64
bool decodePrologue(Addr sp, Addr callpc, Addr func, int &size, Addr &ra)
Definition: stacktrace.cc:116
static const int user
Definition: stacktrace.hh:101
int size()
Definition: pagetable.hh:146
bool valid() const
Definition: stacktrace.hh:87
ThreadContext * tc
Definition: stacktrace.hh:63
TheISA::MachInst MachInst
Definition: stacktrace.hh:61
void dump()
Dump all statistics data to the registered outputs.
Definition: statistics.cc:517
bool isReturn() const
Definition: static_inst.hh:147
Addr task(Addr ksp) const
Definition: stacktrace.cc:47
static const int console
Definition: stacktrace.hh:102
std::string name(Addr ksp) const
Definition: stacktrace.cc:61

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