stacktrace.hh (2977:3584f349e099) 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_SPARC_STACKTRACE_HH__
32#define __ARCH_SPARC_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_SPARC_STACKTRACE_HH__
32#define __ARCH_SPARC_STACKTRACE_HH__
33
34#include "base/trace.hh"
35#include "cpu/static_inst.hh"
36
37class ThreadContext;
38class StackTrace;
39
40class ProcessInfo
38namespace SparcISA
41{
39{
42 private:
43 ThreadContext *tc;
40 class StackTrace;
44
41
45 int thread_info_size;
46 int task_struct_size;
47 int task_off;
48 int pid_off;
49 int name_off;
42 class ProcessInfo
43 {
44 private:
45 ThreadContext *tc;
50
46
51 public:
52 ProcessInfo(ThreadContext *_tc);
47 int thread_info_size;
48 int task_struct_size;
49 int task_off;
50 int pid_off;
51 int name_off;
53
52
54 Addr task(Addr ksp) const;
55 int pid(Addr ksp) const;
56 std::string name(Addr ksp) const;
57};
53 public:
54 ProcessInfo(ThreadContext *_tc);
58
55
59class StackTrace
60{
61 protected:
62 typedef TheISA::MachInst MachInst;
63 private:
64 ThreadContext *tc;
65 std::vector<Addr> stack;
56 Addr task(Addr ksp) const;
57 int pid(Addr ksp) const;
58 std::string name(Addr ksp) const;
59 };
66
60
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);
61 class StackTrace
62 {
63 protected:
64 typedef TheISA::MachInst MachInst;
65 private:
66 ThreadContext *tc;
67 std::vector<Addr> stack;
72
68
73 void trace(ThreadContext *tc, bool is_call);
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 &reg, int &disp);
73 bool decodeStack(MachInst inst, int &disp);
74
74
75 public:
76 StackTrace();
77 StackTrace(ThreadContext *tc, StaticInstPtr inst);
78 ~StackTrace();
75 void trace(ThreadContext *tc, bool is_call);
79
76
80 void clear()
81 {
82 tc = 0;
83 stack.clear();
84 }
77 public:
78 StackTrace();
79 StackTrace(ThreadContext *tc, StaticInstPtr inst);
80 ~StackTrace();
85
81
86 bool valid() const { return tc != NULL; }
87 bool trace(ThreadContext *tc, StaticInstPtr inst);
82 void clear()
83 {
84 tc = 0;
85 stack.clear();
86 }
88
87
89 public:
90 const std::vector<Addr> &getstack() const { return stack; }
88 bool valid() const { return tc != NULL; }
89 bool trace(ThreadContext *tc, StaticInstPtr inst);
91
90
92 static const int user = 1;
93 static const int console = 2;
94 static const int unknown = 3;
91 public:
92 const std::vector<Addr> &getstack() const { return stack; }
95
93
94 static const int user = 1;
95 static const int console = 2;
96 static const int unknown = 3;
97
96#if TRACING_ON
98#if TRACING_ON
97 private:
98 void dump();
99 private:
100 void dump();
99
101
100 public:
101 void dprintf() { if (DTRACE(Stack)) dump(); }
102 public:
103 void dprintf() { if (DTRACE(Stack)) dump(); }
102#else
104#else
103 public:
104 void dprintf() {}
105 public:
106 void dprintf() {}
105#endif
107#endif
106};
108 };
107
109
108inline bool
109StackTrace::trace(ThreadContext *tc, StaticInstPtr inst)
110{
111 if (!inst->isCall() && !inst->isReturn())
112 return false;
110 inline bool
111 StackTrace::trace(ThreadContext *tc, StaticInstPtr inst)
112 {
113 if (!inst->isCall() && !inst->isReturn())
114 return false;
113
115
114 if (valid())
115 clear();
116 if (valid())
117 clear();
116
118
117 trace(tc, !inst->isReturn());
118 return true;
119 trace(tc, !inst->isReturn());
120 return true;
121 }
119}
120
121#endif // __ARCH_SPARC_STACKTRACE_HH__
122}
123
124#endif // __ARCH_SPARC_STACKTRACE_HH__