stacktrace.hh (4120:3e09b5d32c45) stacktrace.hh (4145:90fe789c9458)
1/*
2 * Copyright (c) 2006 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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26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Nathan Binkert
29 */
30
31#ifndef __ARCH_X86_STACKTRACE_HH__
32#define __ARCH_X86_STACKTRACE_HH__
33
1/*
2 * Copyright (c) 2006 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;

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

26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Nathan Binkert
29 */
30
31#ifndef __ARCH_X86_STACKTRACE_HH__
32#define __ARCH_X86_STACKTRACE_HH__
33
34#error X86 is not yet supported!
34#include "base/trace.hh"
35#include "cpu/static_inst.hh"
35
36
37class ThreadContext;
36namespace X86ISA
37{
38namespace X86ISA
39{
38};
40 class StackTrace;
39
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 private:
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
73 void trace(ThreadContext *tc, bool is_call);
74
75 public:
76 StackTrace();
77 StackTrace(ThreadContext *tc, StaticInstPtr inst);
78 ~StackTrace();
79
80 void clear()
81 {
82 tc = 0;
83 stack.clear();
84 }
85
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
96#if TRACING_ON
97 private:
98 void dump();
99
100 public:
101 void dprintf() { if (DTRACE(Stack)) dump(); }
102#else
103 public:
104 void dprintf() {}
105#endif
106 };
107
108 inline bool
109 StackTrace::trace(ThreadContext *tc, StaticInstPtr inst)
110 {
111 if (!inst->isCall() && !inst->isReturn())
112 return false;
113
114 if (valid())
115 clear();
116
117 trace(tc, !inst->isReturn());
118 return true;
119 }
120}
121
40#endif // __ARCH_X86_STACKTRACE_HH__
122#endif // __ARCH_X86_STACKTRACE_HH__