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