stacktrace.hh (2665:a124942bacb8) stacktrace.hh (2680:246e7104f744)
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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29 */
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
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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29 */
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 ExecContext;
37class ThreadContext;
38class StackTrace;
39
40class ProcessInfo
41{
42 private:
38class StackTrace;
39
40class ProcessInfo
41{
42 private:
43 ExecContext *xc;
43 ThreadContext *tc;
44
45 int thread_info_size;
46 int task_struct_size;
47 int task_off;
48 int pid_off;
49 int name_off;
50
51 public:
44
45 int thread_info_size;
46 int task_struct_size;
47 int task_off;
48 int pid_off;
49 int name_off;
50
51 public:
52 ProcessInfo(ExecContext *_xc);
52 ProcessInfo(ThreadContext *_tc);
53
54 Addr task(Addr ksp) const;
55 int pid(Addr ksp) const;
56 std::string name(Addr ksp) const;
57};
58
59class StackTrace
60{
61 protected:
62 typedef TheISA::MachInst MachInst;
63 private:
53
54 Addr task(Addr ksp) const;
55 int pid(Addr ksp) const;
56 std::string name(Addr ksp) const;
57};
58
59class StackTrace
60{
61 protected:
62 typedef TheISA::MachInst MachInst;
63 private:
64 ExecContext *xc;
64 ThreadContext *tc;
65 std::vector<Addr> stack;
66
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);
72
65 std::vector<Addr> stack;
66
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);
72
73 void trace(ExecContext *xc, bool is_call);
73 void trace(ThreadContext *tc, bool is_call);
74
75 public:
76 StackTrace();
74
75 public:
76 StackTrace();
77 StackTrace(ExecContext *xc, StaticInstPtr inst);
77 StackTrace(ThreadContext *tc, StaticInstPtr inst);
78 ~StackTrace();
79
80 void clear()
81 {
78 ~StackTrace();
79
80 void clear()
81 {
82 xc = 0;
82 tc = 0;
83 stack.clear();
84 }
85
83 stack.clear();
84 }
85
86 bool valid() const { return xc != NULL; }
87 bool trace(ExecContext *xc, StaticInstPtr inst);
86 bool valid() const { return tc != NULL; }
87 bool trace(ThreadContext *tc, StaticInstPtr inst);
88
89 public:
90 const std::vector<Addr> &getstack() const { return stack; }
91
92 static const int user = 1;
93 static const int console = 2;
94 static const int unknown = 3;
95

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101 void dprintf() { if (DTRACE(Stack)) dump(); }
102#else
103 public:
104 void dprintf() {}
105#endif
106};
107
108inline bool
88
89 public:
90 const std::vector<Addr> &getstack() const { return stack; }
91
92 static const int user = 1;
93 static const int console = 2;
94 static const int unknown = 3;
95

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101 void dprintf() { if (DTRACE(Stack)) dump(); }
102#else
103 public:
104 void dprintf() {}
105#endif
106};
107
108inline bool
109StackTrace::trace(ExecContext *xc, StaticInstPtr inst)
109StackTrace::trace(ThreadContext *tc, StaticInstPtr inst)
110{
111 if (!inst->isCall() && !inst->isReturn())
112 return false;
113
114 if (valid())
115 clear();
116
110{
111 if (!inst->isCall() && !inst->isReturn())
112 return false;
113
114 if (valid())
115 clear();
116
117 trace(xc, !inst->isReturn());
117 trace(tc, !inst->isReturn());
118 return true;
119}
120
121#endif // __ARCH_ALPHA_STACKTRACE_HH__
118 return true;
119}
120
121#endif // __ARCH_ALPHA_STACKTRACE_HH__