stacktrace.hh (8232:b28d06a175be) stacktrace.hh (10417:710ee116eb68)
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;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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#include "base/trace.hh"
35#include "cpu/static_inst.hh"
36#include "debug/Stack.hh"
37
38class ThreadContext;
39namespace X86ISA
40{
41 class StackTrace;
42
43 class ProcessInfo
44 {
45 private:
46 ThreadContext *tc;
47
48 int thread_info_size;
49 int task_struct_size;
50 int task_off;
51 int pid_off;
52 int name_off;
53
54 public:
55 ProcessInfo(ThreadContext *_tc);
56
57 Addr task(Addr ksp) const;
58 int pid(Addr ksp) const;
59 std::string name(Addr ksp) const;
60 };
61
62 class StackTrace
63 {
64 private:
65 ThreadContext *tc;
66 std::vector<Addr> stack;
67
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);
73
74 void trace(ThreadContext *tc, bool is_call);
75
76 public:
77 StackTrace();
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;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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#include "base/trace.hh"
35#include "cpu/static_inst.hh"
36#include "debug/Stack.hh"
37
38class ThreadContext;
39namespace X86ISA
40{
41 class StackTrace;
42
43 class ProcessInfo
44 {
45 private:
46 ThreadContext *tc;
47
48 int thread_info_size;
49 int task_struct_size;
50 int task_off;
51 int pid_off;
52 int name_off;
53
54 public:
55 ProcessInfo(ThreadContext *_tc);
56
57 Addr task(Addr ksp) const;
58 int pid(Addr ksp) const;
59 std::string name(Addr ksp) const;
60 };
61
62 class StackTrace
63 {
64 private:
65 ThreadContext *tc;
66 std::vector<Addr> stack;
67
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);
73
74 void trace(ThreadContext *tc, bool is_call);
75
76 public:
77 StackTrace();
78 StackTrace(ThreadContext *tc, StaticInstPtr inst);
78 StackTrace(ThreadContext *tc, const StaticInstPtr &inst);
79 ~StackTrace();
80
81 void clear()
82 {
83 tc = 0;
84 stack.clear();
85 }
86
87 bool valid() const { return tc != NULL; }
79 ~StackTrace();
80
81 void clear()
82 {
83 tc = 0;
84 stack.clear();
85 }
86
87 bool valid() const { return tc != NULL; }
88 bool trace(ThreadContext *tc, StaticInstPtr inst);
88 bool trace(ThreadContext *tc, const StaticInstPtr &inst);
89
90 public:
91 const std::vector<Addr> &getstack() const { return stack; }
92
93 static const int user = 1;
94 static const int console = 2;
95 static const int unknown = 3;
96
97#if TRACING_ON
98 private:
99 void dump();
100
101 public:
102 void dprintf() { if (DTRACE(Stack)) dump(); }
103#else
104 public:
105 void dprintf() {}
106#endif
107 };
108
109 inline bool
89
90 public:
91 const std::vector<Addr> &getstack() const { return stack; }
92
93 static const int user = 1;
94 static const int console = 2;
95 static const int unknown = 3;
96
97#if TRACING_ON
98 private:
99 void dump();
100
101 public:
102 void dprintf() { if (DTRACE(Stack)) dump(); }
103#else
104 public:
105 void dprintf() {}
106#endif
107 };
108
109 inline bool
110 StackTrace::trace(ThreadContext *tc, StaticInstPtr inst)
110 StackTrace::trace(ThreadContext *tc, const StaticInstPtr &inst)
111 {
112 if (!inst->isCall() && !inst->isReturn())
113 return false;
114
115 if (valid())
116 clear();
117
118 trace(tc, !inst->isReturn());
119 return true;
120 }
121}
122
123#endif // __ARCH_X86_STACKTRACE_HH__
111 {
112 if (!inst->isCall() && !inst->isReturn())
113 return false;
114
115 if (valid())
116 clear();
117
118 trace(tc, !inst->isReturn());
119 return true;
120 }
121}
122
123#endif // __ARCH_X86_STACKTRACE_HH__