system.cc (2689:dbf969c18a65) system.cc (2716:b9114064d77a)
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 "base/loader/object_file.hh"
36#include "base/loader/symtab.hh"
37#include "base/trace.hh"
38#include "cpu/thread_context.hh"
39#include "mem/mem_object.hh"
40#include "mem/physical.hh"
41#include "sim/builder.hh"
42#include "sim/byteswap.hh"
43#include "sim/system.hh"
44#if FULL_SYSTEM
45#include "arch/vtophys.hh"
46#include "base/remote_gdb.hh"
47#include "kern/kernel_stats.hh"
48#endif
49
50using namespace std;
51using namespace TheISA;
52
53vector<System *> System::systemList;
54
55int System::numSystemsRunning = 0;
56
57System::System(Params *p)
58 : SimObject(p->name), physmem(p->physmem), numcpus(0),
59#if FULL_SYSTEM
60 init_param(p->init_param),
61 functionalPort(p->name + "-fport"),
62 virtPort(p->name + "-vport"),
63#else
64 page_ptr(0),
65#endif
66 _params(p)
67{
68 // add self to global system list
69 systemList.push_back(this);
70
71#if FULL_SYSTEM
72 kernelSymtab = new SymbolTable;
73 debugSymbolTable = new SymbolTable;
74
75
76 /**
77 * Get a functional port to memory
78 */
79 Port *mem_port;
80 mem_port = physmem->getPort("functional");
81 functionalPort.setPeer(mem_port);
82 mem_port->setPeer(&functionalPort);
83
84 mem_port = physmem->getPort("functional");
85 virtPort.setPeer(mem_port);
86 mem_port->setPeer(&virtPort);
87
88
89 /**
90 * Load the kernel code into memory
91 */
92 // Load kernel code
93 kernel = createObjectFile(params()->kernel_path);
94 if (kernel == NULL)
95 fatal("Could not load kernel file %s", params()->kernel_path);
96
97 // Load program sections into memory
98 kernel->loadSections(&functionalPort, LoadAddrMask);
99
100 // setup entry points
101 kernelStart = kernel->textBase();
102 kernelEnd = kernel->bssBase() + kernel->bssSize();
103 kernelEntry = kernel->entryPoint();
104
105 // load symbols
106 if (!kernel->loadGlobalSymbols(kernelSymtab))
107 panic("could not load kernel symbols\n");
108
109 if (!kernel->loadLocalSymbols(kernelSymtab))
110 panic("could not load kernel local symbols\n");
111
112 if (!kernel->loadGlobalSymbols(debugSymbolTable))
113 panic("could not load kernel symbols\n");
114
115 if (!kernel->loadLocalSymbols(debugSymbolTable))
116 panic("could not load kernel local symbols\n");
117
118 DPRINTF(Loader, "Kernel start = %#x\n", kernelStart);
119 DPRINTF(Loader, "Kernel end = %#x\n", kernelEnd);
120 DPRINTF(Loader, "Kernel entry = %#x\n", kernelEntry);
121 DPRINTF(Loader, "Kernel loaded...\n");
122
123 kernelBinning = new Kernel::Binning(this);
124#endif // FULL_SYSTEM
125
126 // increment the number of running systms
127 numSystemsRunning++;
128}
129
130System::~System()
131{
132#if FULL_SYSTEM
133 delete kernelSymtab;
134 delete kernel;
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 "base/loader/object_file.hh"
36#include "base/loader/symtab.hh"
37#include "base/trace.hh"
38#include "cpu/thread_context.hh"
39#include "mem/mem_object.hh"
40#include "mem/physical.hh"
41#include "sim/builder.hh"
42#include "sim/byteswap.hh"
43#include "sim/system.hh"
44#if FULL_SYSTEM
45#include "arch/vtophys.hh"
46#include "base/remote_gdb.hh"
47#include "kern/kernel_stats.hh"
48#endif
49
50using namespace std;
51using namespace TheISA;
52
53vector<System *> System::systemList;
54
55int System::numSystemsRunning = 0;
56
57System::System(Params *p)
58 : SimObject(p->name), physmem(p->physmem), numcpus(0),
59#if FULL_SYSTEM
60 init_param(p->init_param),
61 functionalPort(p->name + "-fport"),
62 virtPort(p->name + "-vport"),
63#else
64 page_ptr(0),
65#endif
66 _params(p)
67{
68 // add self to global system list
69 systemList.push_back(this);
70
71#if FULL_SYSTEM
72 kernelSymtab = new SymbolTable;
73 debugSymbolTable = new SymbolTable;
74
75
76 /**
77 * Get a functional port to memory
78 */
79 Port *mem_port;
80 mem_port = physmem->getPort("functional");
81 functionalPort.setPeer(mem_port);
82 mem_port->setPeer(&functionalPort);
83
84 mem_port = physmem->getPort("functional");
85 virtPort.setPeer(mem_port);
86 mem_port->setPeer(&virtPort);
87
88
89 /**
90 * Load the kernel code into memory
91 */
92 // Load kernel code
93 kernel = createObjectFile(params()->kernel_path);
94 if (kernel == NULL)
95 fatal("Could not load kernel file %s", params()->kernel_path);
96
97 // Load program sections into memory
98 kernel->loadSections(&functionalPort, LoadAddrMask);
99
100 // setup entry points
101 kernelStart = kernel->textBase();
102 kernelEnd = kernel->bssBase() + kernel->bssSize();
103 kernelEntry = kernel->entryPoint();
104
105 // load symbols
106 if (!kernel->loadGlobalSymbols(kernelSymtab))
107 panic("could not load kernel symbols\n");
108
109 if (!kernel->loadLocalSymbols(kernelSymtab))
110 panic("could not load kernel local symbols\n");
111
112 if (!kernel->loadGlobalSymbols(debugSymbolTable))
113 panic("could not load kernel symbols\n");
114
115 if (!kernel->loadLocalSymbols(debugSymbolTable))
116 panic("could not load kernel local symbols\n");
117
118 DPRINTF(Loader, "Kernel start = %#x\n", kernelStart);
119 DPRINTF(Loader, "Kernel end = %#x\n", kernelEnd);
120 DPRINTF(Loader, "Kernel entry = %#x\n", kernelEntry);
121 DPRINTF(Loader, "Kernel loaded...\n");
122
123 kernelBinning = new Kernel::Binning(this);
124#endif // FULL_SYSTEM
125
126 // increment the number of running systms
127 numSystemsRunning++;
128}
129
130System::~System()
131{
132#if FULL_SYSTEM
133 delete kernelSymtab;
134 delete kernel;
135
136 delete kernelBinning;
137#else
138 panic("System::fixFuncEventAddr needs to be rewritten "
139 "to work with syscall emulation");
140#endif // FULL_SYSTEM}
141}
142
143#if FULL_SYSTEM
144
145
146int rgdb_wait = -1;
147
148#endif // FULL_SYSTEM
149
150int
151System::registerThreadContext(ThreadContext *tc, int id)
152{
153 if (id == -1) {
154 for (id = 0; id < threadContexts.size(); id++) {
155 if (!threadContexts[id])
156 break;
157 }
158 }
159
160 if (threadContexts.size() <= id)
161 threadContexts.resize(id + 1);
162
163 if (threadContexts[id])
164 panic("Cannot have two CPUs with the same id (%d)\n", id);
165
166 threadContexts[id] = tc;
167 numcpus++;
168
169#if FULL_SYSTEM
170 RemoteGDB *rgdb = new RemoteGDB(this, tc);
171 GDBListener *gdbl = new GDBListener(rgdb, 7000 + id);
172 gdbl->listen();
173 /**
174 * Uncommenting this line waits for a remote debugger to connect
175 * to the simulator before continuing.
176 */
177 if (rgdb_wait != -1 && rgdb_wait == id)
178 gdbl->accept();
179
180 if (remoteGDB.size() <= id) {
181 remoteGDB.resize(id + 1);
182 }
183
184 remoteGDB[id] = rgdb;
185#endif // FULL_SYSTEM
186
187 return id;
188}
189
190void
191System::startup()
192{
193 int i;
194 for (i = 0; i < threadContexts.size(); i++)
195 threadContexts[i]->activate(0);
196}
197
198void
199System::replaceThreadContext(ThreadContext *tc, int id)
200{
201 if (id >= threadContexts.size()) {
202 panic("replaceThreadContext: bad id, %d >= %d\n",
203 id, threadContexts.size());
204 }
205
206 threadContexts[id] = tc;
207#if FULL_SYSTEM
208 remoteGDB[id]->replaceThreadContext(tc);
209#endif // FULL_SYSTEM
210}
211
212#if !FULL_SYSTEM
213Addr
214System::new_page()
215{
216 Addr return_addr = page_ptr << LogVMPageSize;
217 ++page_ptr;
218 return return_addr;
219}
220#endif
221
222void
135#else
136 panic("System::fixFuncEventAddr needs to be rewritten "
137 "to work with syscall emulation");
138#endif // FULL_SYSTEM}
139}
140
141#if FULL_SYSTEM
142
143
144int rgdb_wait = -1;
145
146#endif // FULL_SYSTEM
147
148int
149System::registerThreadContext(ThreadContext *tc, int id)
150{
151 if (id == -1) {
152 for (id = 0; id < threadContexts.size(); id++) {
153 if (!threadContexts[id])
154 break;
155 }
156 }
157
158 if (threadContexts.size() <= id)
159 threadContexts.resize(id + 1);
160
161 if (threadContexts[id])
162 panic("Cannot have two CPUs with the same id (%d)\n", id);
163
164 threadContexts[id] = tc;
165 numcpus++;
166
167#if FULL_SYSTEM
168 RemoteGDB *rgdb = new RemoteGDB(this, tc);
169 GDBListener *gdbl = new GDBListener(rgdb, 7000 + id);
170 gdbl->listen();
171 /**
172 * Uncommenting this line waits for a remote debugger to connect
173 * to the simulator before continuing.
174 */
175 if (rgdb_wait != -1 && rgdb_wait == id)
176 gdbl->accept();
177
178 if (remoteGDB.size() <= id) {
179 remoteGDB.resize(id + 1);
180 }
181
182 remoteGDB[id] = rgdb;
183#endif // FULL_SYSTEM
184
185 return id;
186}
187
188void
189System::startup()
190{
191 int i;
192 for (i = 0; i < threadContexts.size(); i++)
193 threadContexts[i]->activate(0);
194}
195
196void
197System::replaceThreadContext(ThreadContext *tc, int id)
198{
199 if (id >= threadContexts.size()) {
200 panic("replaceThreadContext: bad id, %d >= %d\n",
201 id, threadContexts.size());
202 }
203
204 threadContexts[id] = tc;
205#if FULL_SYSTEM
206 remoteGDB[id]->replaceThreadContext(tc);
207#endif // FULL_SYSTEM
208}
209
210#if !FULL_SYSTEM
211Addr
212System::new_page()
213{
214 Addr return_addr = page_ptr << LogVMPageSize;
215 ++page_ptr;
216 return return_addr;
217}
218#endif
219
220void
223System::regStats()
224{
225#if FULL_SYSTEM
226 kernelBinning->regStats(name() + ".kern");
227#endif // FULL_SYSTEM
228}
229
230void
231System::serialize(ostream &os)
232{
233#if FULL_SYSTEM
221System::serialize(ostream &os)
222{
223#if FULL_SYSTEM
234 kernelBinning->serialize(os);
235
236 kernelSymtab->serialize("kernel_symtab", os);
237#endif // FULL_SYSTEM
238}
239
240
241void
242System::unserialize(Checkpoint *cp, const string &section)
243{
244#if FULL_SYSTEM
224 kernelSymtab->serialize("kernel_symtab", os);
225#endif // FULL_SYSTEM
226}
227
228
229void
230System::unserialize(Checkpoint *cp, const string &section)
231{
232#if FULL_SYSTEM
245 kernelBinning->unserialize(cp, section);
246
247 kernelSymtab->unserialize("kernel_symtab", cp, section);
248#endif // FULL_SYSTEM
249}
250
251void
252System::printSystems()
253{
254 vector<System *>::iterator i = systemList.begin();
255 vector<System *>::iterator end = systemList.end();
256 for (; i != end; ++i) {
257 System *sys = *i;
258 cerr << "System " << sys->name() << ": " << hex << sys << endl;
259 }
260}
261
262extern "C"
263void
264printSystems()
265{
266 System::printSystems();
267}
268
269#if FULL_SYSTEM
270
271// In full system mode, only derived classes (e.g. AlphaLinuxSystem)
272// can be created directly.
273
274DEFINE_SIM_OBJECT_CLASS_NAME("System", System)
275
276#else
277
278BEGIN_DECLARE_SIM_OBJECT_PARAMS(System)
279
280 SimObjectParam<PhysicalMemory *> physmem;
281
282END_DECLARE_SIM_OBJECT_PARAMS(System)
283
284BEGIN_INIT_SIM_OBJECT_PARAMS(System)
285
286 INIT_PARAM(physmem, "physical memory")
287
288END_INIT_SIM_OBJECT_PARAMS(System)
289
290CREATE_SIM_OBJECT(System)
291{
292 System::Params *p = new System::Params;
293 p->name = getInstanceName();
294 p->physmem = physmem;
295 return new System(p);
296}
297
298REGISTER_SIM_OBJECT("System", System)
299
300#endif
233 kernelSymtab->unserialize("kernel_symtab", cp, section);
234#endif // FULL_SYSTEM
235}
236
237void
238System::printSystems()
239{
240 vector<System *>::iterator i = systemList.begin();
241 vector<System *>::iterator end = systemList.end();
242 for (; i != end; ++i) {
243 System *sys = *i;
244 cerr << "System " << sys->name() << ": " << hex << sys << endl;
245 }
246}
247
248extern "C"
249void
250printSystems()
251{
252 System::printSystems();
253}
254
255#if FULL_SYSTEM
256
257// In full system mode, only derived classes (e.g. AlphaLinuxSystem)
258// can be created directly.
259
260DEFINE_SIM_OBJECT_CLASS_NAME("System", System)
261
262#else
263
264BEGIN_DECLARE_SIM_OBJECT_PARAMS(System)
265
266 SimObjectParam<PhysicalMemory *> physmem;
267
268END_DECLARE_SIM_OBJECT_PARAMS(System)
269
270BEGIN_INIT_SIM_OBJECT_PARAMS(System)
271
272 INIT_PARAM(physmem, "physical memory")
273
274END_INIT_SIM_OBJECT_PARAMS(System)
275
276CREATE_SIM_OBJECT(System)
277{
278 System::Params *p = new System::Params;
279 p->name = getInstanceName();
280 p->physmem = physmem;
281 return new System(p);
282}
283
284REGISTER_SIM_OBJECT("System", System)
285
286#endif