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;
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#include <string>
32
33#include "arch/arm/isa_traits.hh"
34#include "arch/arm/stacktrace.hh"
35#include "arch/arm/vtophys.hh"
36#include "base/bitfield.hh"
37#include "base/trace.hh"
38#include "cpu/base.hh"
39#include "cpu/thread_context.hh"
40#include "mem/fs_translating_port_proxy.hh"
41#include "sim/system.hh"
42
43using namespace std;
44namespace ArmISA
45{
46 ProcessInfo::ProcessInfo(ThreadContext *_tc)
47 : tc(_tc)
48 {
49 Addr addr = 0;
50
51 FSTranslatingPortProxy &vp = tc->getVirtProxy();
52
53 if (!tc->getSystemPtr()->kernelSymtab->findAddress("thread_info_size", addr))
54 panic("thread info not compiled into kernel\n");
55 thread_info_size = vp.readGtoH<int32_t>(addr);
56
57 if (!tc->getSystemPtr()->kernelSymtab->findAddress("task_struct_size", addr))
58 panic("thread info not compiled into kernel\n");
59 task_struct_size = vp.readGtoH<int32_t>(addr);
60
61 if (!tc->getSystemPtr()->kernelSymtab->findAddress("thread_info_task", addr))
62 panic("thread info not compiled into kernel\n");
63 task_off = vp.readGtoH<int32_t>(addr);
64
65 if (!tc->getSystemPtr()->kernelSymtab->findAddress("task_struct_pid", addr))
66 panic("thread info not compiled into kernel\n");
67 pid_off = vp.readGtoH<int32_t>(addr);
68
69 if (!tc->getSystemPtr()->kernelSymtab->findAddress("task_struct_comm", addr))
70 panic("thread info not compiled into kernel\n");
71 name_off = vp.readGtoH<int32_t>(addr);
72 }
73
74 Addr
75 ProcessInfo::task(Addr ksp) const
76 {
77 return 0;
78 }
79
80 int
81 ProcessInfo::pid(Addr ksp) const
82 {
83 return -1;
84 }
85
86 string
87 ProcessInfo::name(Addr ksp) const
88 {
89 return "Implement me";
90 }
91
92 StackTrace::StackTrace()
93 : tc(0), stack(64)
94 {
95 }
96
97 StackTrace::StackTrace(ThreadContext *_tc, StaticInstPtr inst)
98 : tc(0), stack(64)
99 {
100 trace(_tc, inst);
101 }
102
103 StackTrace::~StackTrace()
104 {
105 }
106
107 void
108 StackTrace::trace(ThreadContext *_tc, bool is_call)
109 {
110 }
111
112 bool
113 StackTrace::isEntry(Addr addr)
114 {
115 return false;
116 }
117
118 bool
119 StackTrace::decodeStack(MachInst inst, int &disp)
120 {
121 return false;
122 }
123
124 bool
125 StackTrace::decodeSave(MachInst inst, int &reg, int &disp)
126 {
127 return false;
128 }
129
130 /*
131 * Decode the function prologue for the function we're in, and note
132 * which registers are stored where, and how large the stack frame is.
133 */
134 bool
135 StackTrace::decodePrologue(Addr sp, Addr callpc, Addr func,
136 int &size, Addr &ra)
137 {
138 return false;
139 }
140
141#if TRACING_ON
142 void
143 StackTrace::dump()
144 {
145 DPRINTFN("------ Stack ------\n");
146
147 DPRINTFN(" Not implemented\n");
148 }
149#endif
150}