stacktrace.hh (2680:246e7104f744) stacktrace.hh (3570:aacc19068f25)
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;

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