1/*
2 * Copyright (c) 2003-2006 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: Steve Reinhardt
29 * Lisa Hsu
30 * Nathan Binkert
31 * Ali Saidi
32 */
33
34#include "arch/isa_traits.hh"
35#include "arch/remote_gdb.hh"
36#include "arch/utility.hh"
37#include "base/loader/object_file.hh"
38#include "base/loader/symtab.hh"
39#include "base/trace.hh"
40#include "cpu/thread_context.hh"
41#include "mem/mem_object.hh"
42#include "mem/physical.hh"
43#include "sim/byteswap.hh"
44#include "sim/system.hh"
| 1/*
2 * Copyright (c) 2003-2006 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: Steve Reinhardt
29 * Lisa Hsu
30 * Nathan Binkert
31 * Ali Saidi
32 */
33
34#include "arch/isa_traits.hh"
35#include "arch/remote_gdb.hh"
36#include "arch/utility.hh"
37#include "base/loader/object_file.hh"
38#include "base/loader/symtab.hh"
39#include "base/trace.hh"
40#include "cpu/thread_context.hh"
41#include "mem/mem_object.hh"
42#include "mem/physical.hh"
43#include "sim/byteswap.hh"
44#include "sim/system.hh"
|
| 45#include "sim/debug.hh"
|
45#if FULL_SYSTEM
46#include "arch/vtophys.hh"
47#include "kern/kernel_stats.hh"
48#else
49#include "params/System.hh"
50#endif
51
52using namespace std;
53using namespace TheISA;
54
55vector<System *> System::systemList;
56
57int System::numSystemsRunning = 0;
58
59System::System(Params *p)
60 : SimObject(p), physmem(p->physmem), numcpus(0),
61#if FULL_SYSTEM
62 init_param(p->init_param),
63 functionalPort(p->name + "-fport"),
64 virtPort(p->name + "-vport"),
65#else
66 page_ptr(0),
67 next_PID(0),
68#endif
69 memoryMode(p->mem_mode), _params(p)
70{
71 // add self to global system list
72 systemList.push_back(this);
73
74#if FULL_SYSTEM
75 kernelSymtab = new SymbolTable;
76 if (!debugSymbolTable)
77 debugSymbolTable = new SymbolTable;
78
79
80 /**
81 * Get a functional port to memory
82 */
83 Port *mem_port;
84 mem_port = physmem->getPort("functional");
85 functionalPort.setPeer(mem_port);
86 mem_port->setPeer(&functionalPort);
87
88 mem_port = physmem->getPort("functional");
89 virtPort.setPeer(mem_port);
90 mem_port->setPeer(&virtPort);
91
92
93 /**
94 * Load the kernel code into memory
95 */
96 if (params()->kernel == "") {
97 warn("No kernel set for full system simulation. Assuming you know what"
98 " you're doing...\n");
99 } else {
100 // Load kernel code
101 kernel = createObjectFile(params()->kernel);
102 warn("kernel located at: %s", params()->kernel);
103
104 if (kernel == NULL)
105 fatal("Could not load kernel file %s", params()->kernel);
106
107 // Load program sections into memory
108 kernel->loadSections(&functionalPort, LoadAddrMask);
109
110 // setup entry points
111 kernelStart = kernel->textBase();
112 kernelEnd = kernel->bssBase() + kernel->bssSize();
113 kernelEntry = kernel->entryPoint();
114
115 // load symbols
116 if (!kernel->loadGlobalSymbols(kernelSymtab))
117 panic("could not load kernel symbols\n");
118
119 if (!kernel->loadLocalSymbols(kernelSymtab))
120 panic("could not load kernel local symbols\n");
121
122 if (!kernel->loadGlobalSymbols(debugSymbolTable))
123 panic("could not load kernel symbols\n");
124
125 if (!kernel->loadLocalSymbols(debugSymbolTable))
126 panic("could not load kernel local symbols\n");
127
128 DPRINTF(Loader, "Kernel start = %#x\n", kernelStart);
129 DPRINTF(Loader, "Kernel end = %#x\n", kernelEnd);
130 DPRINTF(Loader, "Kernel entry = %#x\n", kernelEntry);
131 DPRINTF(Loader, "Kernel loaded...\n");
132 }
133#endif // FULL_SYSTEM
134
135 // increment the number of running systms
136 numSystemsRunning++;
137}
138
139System::~System()
140{
141#if FULL_SYSTEM
142 delete kernelSymtab;
143 delete kernel;
144#else
145 panic("System::fixFuncEventAddr needs to be rewritten "
146 "to work with syscall emulation");
147#endif // FULL_SYSTEM}
148}
149
150int rgdb_wait = -1;
151int rgdb_enable = true;
152
153void
154System::setMemoryMode(Enums::MemoryMode mode)
155{
156 assert(getState() == Drained);
157 memoryMode = mode;
158}
159
160bool System::breakpoint()
161{
162 if (remoteGDB.size())
163 return remoteGDB[0]->breakpoint();
164 return false;
165}
166
167int
168System::registerThreadContext(ThreadContext *tc, int id)
169{
170 if (id == -1) {
171 for (id = 0; id < threadContexts.size(); id++) {
172 if (!threadContexts[id])
173 break;
174 }
175 }
176
177 if (threadContexts.size() <= id)
178 threadContexts.resize(id + 1);
179
180 if (threadContexts[id])
181 panic("Cannot have two CPUs with the same id (%d)\n", id);
182
183 threadContexts[id] = tc;
184 numcpus++;
185
| 46#if FULL_SYSTEM
47#include "arch/vtophys.hh"
48#include "kern/kernel_stats.hh"
49#else
50#include "params/System.hh"
51#endif
52
53using namespace std;
54using namespace TheISA;
55
56vector<System *> System::systemList;
57
58int System::numSystemsRunning = 0;
59
60System::System(Params *p)
61 : SimObject(p), physmem(p->physmem), numcpus(0),
62#if FULL_SYSTEM
63 init_param(p->init_param),
64 functionalPort(p->name + "-fport"),
65 virtPort(p->name + "-vport"),
66#else
67 page_ptr(0),
68 next_PID(0),
69#endif
70 memoryMode(p->mem_mode), _params(p)
71{
72 // add self to global system list
73 systemList.push_back(this);
74
75#if FULL_SYSTEM
76 kernelSymtab = new SymbolTable;
77 if (!debugSymbolTable)
78 debugSymbolTable = new SymbolTable;
79
80
81 /**
82 * Get a functional port to memory
83 */
84 Port *mem_port;
85 mem_port = physmem->getPort("functional");
86 functionalPort.setPeer(mem_port);
87 mem_port->setPeer(&functionalPort);
88
89 mem_port = physmem->getPort("functional");
90 virtPort.setPeer(mem_port);
91 mem_port->setPeer(&virtPort);
92
93
94 /**
95 * Load the kernel code into memory
96 */
97 if (params()->kernel == "") {
98 warn("No kernel set for full system simulation. Assuming you know what"
99 " you're doing...\n");
100 } else {
101 // Load kernel code
102 kernel = createObjectFile(params()->kernel);
103 warn("kernel located at: %s", params()->kernel);
104
105 if (kernel == NULL)
106 fatal("Could not load kernel file %s", params()->kernel);
107
108 // Load program sections into memory
109 kernel->loadSections(&functionalPort, LoadAddrMask);
110
111 // setup entry points
112 kernelStart = kernel->textBase();
113 kernelEnd = kernel->bssBase() + kernel->bssSize();
114 kernelEntry = kernel->entryPoint();
115
116 // load symbols
117 if (!kernel->loadGlobalSymbols(kernelSymtab))
118 panic("could not load kernel symbols\n");
119
120 if (!kernel->loadLocalSymbols(kernelSymtab))
121 panic("could not load kernel local symbols\n");
122
123 if (!kernel->loadGlobalSymbols(debugSymbolTable))
124 panic("could not load kernel symbols\n");
125
126 if (!kernel->loadLocalSymbols(debugSymbolTable))
127 panic("could not load kernel local symbols\n");
128
129 DPRINTF(Loader, "Kernel start = %#x\n", kernelStart);
130 DPRINTF(Loader, "Kernel end = %#x\n", kernelEnd);
131 DPRINTF(Loader, "Kernel entry = %#x\n", kernelEntry);
132 DPRINTF(Loader, "Kernel loaded...\n");
133 }
134#endif // FULL_SYSTEM
135
136 // increment the number of running systms
137 numSystemsRunning++;
138}
139
140System::~System()
141{
142#if FULL_SYSTEM
143 delete kernelSymtab;
144 delete kernel;
145#else
146 panic("System::fixFuncEventAddr needs to be rewritten "
147 "to work with syscall emulation");
148#endif // FULL_SYSTEM}
149}
150
151int rgdb_wait = -1;
152int rgdb_enable = true;
153
154void
155System::setMemoryMode(Enums::MemoryMode mode)
156{
157 assert(getState() == Drained);
158 memoryMode = mode;
159}
160
161bool System::breakpoint()
162{
163 if (remoteGDB.size())
164 return remoteGDB[0]->breakpoint();
165 return false;
166}
167
168int
169System::registerThreadContext(ThreadContext *tc, int id)
170{
171 if (id == -1) {
172 for (id = 0; id < threadContexts.size(); id++) {
173 if (!threadContexts[id])
174 break;
175 }
176 }
177
178 if (threadContexts.size() <= id)
179 threadContexts.resize(id + 1);
180
181 if (threadContexts[id])
182 panic("Cannot have two CPUs with the same id (%d)\n", id);
183
184 threadContexts[id] = tc;
185 numcpus++;
186
|
186 if (rgdb_enable) {
| 187 int port = getRemoteGDBPort();
188 if (rgdb_enable && port) {
|
187 RemoteGDB *rgdb = new RemoteGDB(this, tc);
| 189 RemoteGDB *rgdb = new RemoteGDB(this, tc);
|
188 GDBListener *gdbl = new GDBListener(rgdb, 7000 + id);
| 190 GDBListener *gdbl = new GDBListener(rgdb, port + id);
|
189 gdbl->listen();
190 /**
191 * Uncommenting this line waits for a remote debugger to
192 * connect to the simulator before continuing.
193 */
194 if (rgdb_wait != -1 && rgdb_wait == id)
195 gdbl->accept();
196
197 if (remoteGDB.size() <= id) {
198 remoteGDB.resize(id + 1);
199 }
200
201 remoteGDB[id] = rgdb;
202 }
203
204 return id;
205}
206
207void
208System::startup()
209{
210 int i;
211 for (i = 0; i < threadContexts.size(); i++)
212 TheISA::startupCPU(threadContexts[i], i);
213}
214
215void
216System::replaceThreadContext(ThreadContext *tc, int id)
217{
218 if (id >= threadContexts.size()) {
219 panic("replaceThreadContext: bad id, %d >= %d\n",
220 id, threadContexts.size());
221 }
222
223 threadContexts[id] = tc;
224 if (id < remoteGDB.size())
225 remoteGDB[id]->replaceThreadContext(tc);
226}
227
228#if !FULL_SYSTEM
229Addr
230System::new_page()
231{
232 Addr return_addr = page_ptr << LogVMPageSize;
233 ++page_ptr;
234 if (return_addr >= physmem->size())
235 fatal("Out of memory, please increase size of physical memory.");
236 return return_addr;
237}
238#endif
239
240void
241System::serialize(ostream &os)
242{
243#if FULL_SYSTEM
244 kernelSymtab->serialize("kernel_symtab", os);
245#else // !FULL_SYSTEM
246 SERIALIZE_SCALAR(page_ptr);
247#endif
248}
249
250
251void
252System::unserialize(Checkpoint *cp, const string §ion)
253{
254#if FULL_SYSTEM
255 kernelSymtab->unserialize("kernel_symtab", cp, section);
256#else // !FULL_SYSTEM
257 UNSERIALIZE_SCALAR(page_ptr);
258#endif
259}
260
261void
262System::printSystems()
263{
264 vector<System *>::iterator i = systemList.begin();
265 vector<System *>::iterator end = systemList.end();
266 for (; i != end; ++i) {
267 System *sys = *i;
268 cerr << "System " << sys->name() << ": " << hex << sys << endl;
269 }
270}
271
272void
273printSystems()
274{
275 System::printSystems();
276}
277
278const char *System::MemoryModeStrings[3] = {"invalid", "atomic",
279 "timing"};
280
281#if !FULL_SYSTEM
282
283System *
284SystemParams::create()
285{
286 System::Params *p = new System::Params;
287 p->name = name;
288 p->physmem = physmem;
289 p->mem_mode = mem_mode;
290 return new System(p);
291}
292
293#endif
| 191 gdbl->listen();
192 /**
193 * Uncommenting this line waits for a remote debugger to
194 * connect to the simulator before continuing.
195 */
196 if (rgdb_wait != -1 && rgdb_wait == id)
197 gdbl->accept();
198
199 if (remoteGDB.size() <= id) {
200 remoteGDB.resize(id + 1);
201 }
202
203 remoteGDB[id] = rgdb;
204 }
205
206 return id;
207}
208
209void
210System::startup()
211{
212 int i;
213 for (i = 0; i < threadContexts.size(); i++)
214 TheISA::startupCPU(threadContexts[i], i);
215}
216
217void
218System::replaceThreadContext(ThreadContext *tc, int id)
219{
220 if (id >= threadContexts.size()) {
221 panic("replaceThreadContext: bad id, %d >= %d\n",
222 id, threadContexts.size());
223 }
224
225 threadContexts[id] = tc;
226 if (id < remoteGDB.size())
227 remoteGDB[id]->replaceThreadContext(tc);
228}
229
230#if !FULL_SYSTEM
231Addr
232System::new_page()
233{
234 Addr return_addr = page_ptr << LogVMPageSize;
235 ++page_ptr;
236 if (return_addr >= physmem->size())
237 fatal("Out of memory, please increase size of physical memory.");
238 return return_addr;
239}
240#endif
241
242void
243System::serialize(ostream &os)
244{
245#if FULL_SYSTEM
246 kernelSymtab->serialize("kernel_symtab", os);
247#else // !FULL_SYSTEM
248 SERIALIZE_SCALAR(page_ptr);
249#endif
250}
251
252
253void
254System::unserialize(Checkpoint *cp, const string §ion)
255{
256#if FULL_SYSTEM
257 kernelSymtab->unserialize("kernel_symtab", cp, section);
258#else // !FULL_SYSTEM
259 UNSERIALIZE_SCALAR(page_ptr);
260#endif
261}
262
263void
264System::printSystems()
265{
266 vector<System *>::iterator i = systemList.begin();
267 vector<System *>::iterator end = systemList.end();
268 for (; i != end; ++i) {
269 System *sys = *i;
270 cerr << "System " << sys->name() << ": " << hex << sys << endl;
271 }
272}
273
274void
275printSystems()
276{
277 System::printSystems();
278}
279
280const char *System::MemoryModeStrings[3] = {"invalid", "atomic",
281 "timing"};
282
283#if !FULL_SYSTEM
284
285System *
286SystemParams::create()
287{
288 System::Params *p = new System::Params;
289 p->name = name;
290 p->physmem = physmem;
291 p->mem_mode = mem_mode;
292 return new System(p);
293}
294
295#endif
|