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_SPARC_STACKTRACE_HH__ 32#define __ARCH_SPARC_STACKTRACE_HH__ 33 34#include "base/trace.hh" 35#include "cpu/static_inst.hh" 36 37class ThreadContext; |
38namespace SparcISA |
39{ |
40 class StackTrace; |
41 |
42 class ProcessInfo 43 { 44 private: 45 ThreadContext *tc; |
46 |
47 int thread_info_size; 48 int task_struct_size; 49 int task_off; 50 int pid_off; 51 int name_off; |
52 |
53 public: 54 ProcessInfo(ThreadContext *_tc); |
55 |
56 Addr task(Addr ksp) const; 57 int pid(Addr ksp) const; 58 std::string name(Addr ksp) const; 59 }; |
60 |
61 class StackTrace 62 { 63 protected: 64 typedef TheISA::MachInst MachInst; 65 private: 66 ThreadContext *tc; 67 std::vector<Addr> stack; |
68 |
69 private: 70 bool isEntry(Addr addr); 71 bool decodePrologue(Addr sp, Addr callpc, Addr func, int &size, Addr &ra); 72 bool decodeSave(MachInst inst, int ®, int &disp); 73 bool decodeStack(MachInst inst, int &disp); |
74 |
75 void trace(ThreadContext *tc, bool is_call); |
76 |
77 public: 78 StackTrace(); 79 StackTrace(ThreadContext *tc, StaticInstPtr inst); 80 ~StackTrace(); |
81 |
82 void clear() 83 { 84 tc = 0; 85 stack.clear(); 86 } |
87 |
88 bool valid() const { return tc != NULL; } 89 bool trace(ThreadContext *tc, StaticInstPtr inst); |
90 |
91 public: 92 const std::vector<Addr> &getstack() const { return stack; } |
93 |
94 static const int user = 1; 95 static const int console = 2; 96 static const int unknown = 3; 97 |
98#if TRACING_ON |
99 private: 100 void dump(); |
101 |
102 public: 103 void dprintf() { if (DTRACE(Stack)) dump(); } |
104#else |
105 public: 106 void dprintf() {} |
107#endif |
108 }; |
109 |
110 inline bool 111 StackTrace::trace(ThreadContext *tc, StaticInstPtr inst) 112 { 113 if (!inst->isCall() && !inst->isReturn()) 114 return false; |
115 |
116 if (valid()) 117 clear(); |
118 |
119 trace(tc, !inst->isReturn()); 120 return true; 121 } |
122} 123 124#endif // __ARCH_SPARC_STACKTRACE_HH__ |