debug.cc revision 9983 
1/*
2 * Copyright (c) 2003-2005 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 *          Steve Reinhardt
30 */
31
32#include <Python.h>
33
34#include <string>
35#include <vector>
36
37#include "base/debug.hh"
38#include "sim/debug.hh"
39#include "sim/eventq_impl.hh"
40#include "sim/global_event.hh"
41#include "sim/sim_events.hh"
42#include "sim/sim_exit.hh"
43
44using namespace std;
45
46//
47// Debug event: place a breakpoint on the process function and
48// schedule the event to break at a particular cycle
49//
50struct DebugBreakEvent : public GlobalEvent
51{
52    DebugBreakEvent(Tick when);
53    void process();     // process event
54    virtual const char *description() const;
55};
56
57//
58// constructor: schedule at specified time
59//
60DebugBreakEvent::DebugBreakEvent(Tick when)
61    : GlobalEvent(when, Debug_Break_Pri, AutoDelete)
62{
63}
64
65//
66// handle debug event: set debugger breakpoint on this function
67//
68void
69DebugBreakEvent::process()
70{
71    Debug::breakpoint();
72}
73
74
75const char *
76DebugBreakEvent::description() const
77{
78    return "debug breakpoint";
79}
80
81//
82// handy function to schedule DebugBreakEvent on main event queue
83// (callable from debugger)
84//
85void
86schedBreak(Tick when)
87{
88    new DebugBreakEvent(when);
89    warn("need to stop all queues");
90}
91
92///
93/// Function to cause the simulator to take a checkpoint from the debugger
94///
95void
96takeCheckpoint(Tick when)
97{
98    if (!when)
99        when = curTick() + 1;
100    exitSimLoop("checkpoint", 0, when, 0);
101}
102
103void
104eventqDump()
105{
106    for (uint32_t i = 0; i < numMainEventQueues; ++i) {
107        mainEventQueue[i]->dump();
108    }
109}
110
111void
112py_interact()
113{
114    PyObject *globals;
115    PyObject *locals;
116
117    globals = PyEval_GetGlobals();
118    Py_INCREF(globals);
119    locals = PyDict_New();
120    PyRun_String("import code", Py_file_input, globals, locals);
121    PyRun_String("code.interact(local=globals())", Py_file_input,
122                 globals, locals);
123    Py_DECREF(globals);
124    Py_DECREF(locals);
125}
126
127int remote_gdb_base_port = 7000;
128
129int
130getRemoteGDBPort()
131{
132    return remote_gdb_base_port;
133}
134
135// Set remote GDB base port.  0 means disable remote GDB.
136// Callable from python.
137void
138setRemoteGDBPort(int port)
139{
140    remote_gdb_base_port = port;
141}
142
143