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 * Authors: Nathan Binkert 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 ThreadContext;
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38class StackTrace;
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38
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40class ProcessInfo
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39namespace AlphaISA |
40{
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42 private:
43 ThreadContext *tc;
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41 class StackTrace; |
42
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45 int thread_info_size;
46 int task_struct_size;
47 int task_off;
48 int pid_off;
49 int name_off;
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43 class ProcessInfo 44 { 45 private: 46 ThreadContext *tc; |
47
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51 public:
52 ProcessInfo(ThreadContext *_tc);
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48 int thread_info_size; 49 int task_struct_size; 50 int task_off; 51 int pid_off; 52 int name_off; |
53
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54 Addr task(Addr ksp) const;
55 int pid(Addr ksp) const;
56 std::string name(Addr ksp) const;
57};
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54 public: 55 ProcessInfo(ThreadContext *_tc); |
56
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59class StackTrace
60{
61 protected:
62 typedef TheISA::MachInst MachInst;
63 private:
64 ThreadContext *tc;
65 std::vector<Addr> stack;
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57 Addr task(Addr ksp) const; 58 int pid(Addr ksp) const; 59 std::string name(Addr ksp) const; 60 }; |
61
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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);
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62 class StackTrace 63 { 64 protected: 65 typedef TheISA::MachInst MachInst; 66 private: 67 ThreadContext *tc; 68 std::vector<Addr> stack; |
69
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73 void trace(ThreadContext *tc, bool is_call);
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70 private: 71 bool isEntry(Addr addr); 72 bool decodePrologue(Addr sp, Addr callpc, Addr func, int &size, Addr &ra); 73 bool decodeSave(MachInst inst, int ®, int &disp); 74 bool decodeStack(MachInst inst, int &disp); |
75
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75 public:
76 StackTrace();
77 StackTrace(ThreadContext *tc, StaticInstPtr inst);
78 ~StackTrace();
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76 void trace(ThreadContext *tc, bool is_call); |
77
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80 void clear()
81 {
82 tc = 0;
83 stack.clear();
84 }
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78 public: 79 StackTrace(); 80 StackTrace(ThreadContext *tc, StaticInstPtr inst); 81 ~StackTrace(); |
82
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86 bool valid() const { return tc != NULL; }
87 bool trace(ThreadContext *tc, StaticInstPtr inst);
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83 void clear() 84 { 85 tc = 0; 86 stack.clear(); 87 } |
88
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89 public:
90 const std::vector<Addr> &getstack() const { return stack; }
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89 bool valid() const { return tc != NULL; } 90 bool trace(ThreadContext *tc, StaticInstPtr inst); |
91
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92 static const int user = 1;
93 static const int console = 2;
94 static const int unknown = 3;
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92 public: 93 const std::vector<Addr> &getstack() const { return stack; } |
94
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95 static const int user = 1; 96 static const int console = 2; 97 static const int unknown = 3; 98 |
99#if TRACING_ON
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97 private:
98 void dump();
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100 private: 101 void dump(); |
102
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100 public:
101 void dprintf() { if (DTRACE(Stack)) dump(); }
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103 public: 104 void dprintf() { if (DTRACE(Stack)) dump(); } |
105#else
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103 public:
104 void dprintf() {}
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106 public: 107 void dprintf() {} |
108#endif
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106};
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109 }; |
110
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108inline bool
109StackTrace::trace(ThreadContext *tc, StaticInstPtr inst)
110{
111 if (!inst->isCall() && !inst->isReturn())
112 return false;
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111 inline bool 112 StackTrace::trace(ThreadContext *tc, StaticInstPtr inst) 113 { 114 if (!inst->isCall() && !inst->isReturn()) 115 return false; |
116
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114 if (valid())
115 clear();
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117 if (valid()) 118 clear(); |
119
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117 trace(tc, !inst->isReturn());
118 return true;
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120 trace(tc, !inst->isReturn()); 121 return true; 122 } |
123} 124 125#endif // __ARCH_ALPHA_STACKTRACE_HH__
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