debug.cc revision 9960:501c7384a5bc 
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/sim_events.hh"
41#include "sim/sim_exit.hh"
42
43using namespace std;
44
45//
46// Debug event: place a breakpoint on the process function and
47// schedule the event to break at a particular cycle
48//
49struct DebugBreakEvent : public Event
50{
51    DebugBreakEvent();
52    void process();     // process event
53    virtual const char *description() const;
54};
55
56//
57// constructor: schedule at specified time
58//
59DebugBreakEvent::DebugBreakEvent()
60    : Event(Debug_Break_Pri, AutoDelete)
61{
62}
63
64//
65// handle debug event: set debugger breakpoint on this function
66//
67void
68DebugBreakEvent::process()
69{
70    Debug::breakpoint();
71}
72
73
74const char *
75DebugBreakEvent::description() const
76{
77    return "debug breakpoint";
78}
79
80//
81// handy function to schedule DebugBreakEvent on main event queue
82// (callable from debugger)
83//
84void
85schedBreak(Tick when)
86{
87    mainEventQueue.schedule(new DebugBreakEvent, when);
88    warn("need to stop all queues");
89}
90
91///
92/// Function to cause the simulator to take a checkpoint from the debugger
93///
94void
95takeCheckpoint(Tick when)
96{
97    if (!when)
98        when = curTick() + 1;
99    exitSimLoop("checkpoint", 0, when, 0);
100}
101
102void
103eventqDump()
104{
105    mainEventQueue.dump();
106    warn("need to dump all queues");
107}
108
109void
110py_interact()
111{
112    PyObject *globals;
113    PyObject *locals;
114
115    globals = PyEval_GetGlobals();
116    Py_INCREF(globals);
117    locals = PyDict_New();
118    PyRun_String("import code", Py_file_input, globals, locals);
119    PyRun_String("code.interact(local=globals())", Py_file_input,
120                 globals, locals);
121    Py_DECREF(globals);
122    Py_DECREF(locals);
123}
124
125int remote_gdb_base_port = 7000;
126
127int
128getRemoteGDBPort()
129{
130    return remote_gdb_base_port;
131}
132
133// Set remote GDB base port.  0 means disable remote GDB.
134// Callable from python.
135void
136setRemoteGDBPort(int port)
137{
138    remote_gdb_base_port = port;
139}
140
141