stacktrace.hh (5568:d14250d688d2) stacktrace.hh (5569:baeee670d4ce)
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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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
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;

--- 22 unchanged lines hidden (view full) ---

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