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"
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
| 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"
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
|
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
187 int port = getRemoteGDBPort();
188 if (rgdb_enable && port) {
189 RemoteGDB *rgdb = new RemoteGDB(this, tc);
190 GDBListener *gdbl = new GDBListener(rgdb, port + id);
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 return new System(this);
289}
290
291#endif
| 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
186 int port = getRemoteGDBPort();
187 if (rgdb_enable && port) {
188 RemoteGDB *rgdb = new RemoteGDB(this, tc);
189 GDBListener *gdbl = new GDBListener(rgdb, port + id);
190 gdbl->listen();
191 /**
192 * Uncommenting this line waits for a remote debugger to
193 * connect to the simulator before continuing.
194 */
195 if (rgdb_wait != -1 && rgdb_wait == id)
196 gdbl->accept();
197
198 if (remoteGDB.size() <= id) {
199 remoteGDB.resize(id + 1);
200 }
201
202 remoteGDB[id] = rgdb;
203 }
204
205 return id;
206}
207
208void
209System::startup()
210{
211 int i;
212 for (i = 0; i < threadContexts.size(); i++)
213 TheISA::startupCPU(threadContexts[i], i);
214}
215
216void
217System::replaceThreadContext(ThreadContext *tc, int id)
218{
219 if (id >= threadContexts.size()) {
220 panic("replaceThreadContext: bad id, %d >= %d\n",
221 id, threadContexts.size());
222 }
223
224 threadContexts[id] = tc;
225 if (id < remoteGDB.size())
226 remoteGDB[id]->replaceThreadContext(tc);
227}
228
229#if !FULL_SYSTEM
230Addr
231System::new_page()
232{
233 Addr return_addr = page_ptr << LogVMPageSize;
234 ++page_ptr;
235 if (return_addr >= physmem->size())
236 fatal("Out of memory, please increase size of physical memory.");
237 return return_addr;
238}
239#endif
240
241void
242System::serialize(ostream &os)
243{
244#if FULL_SYSTEM
245 kernelSymtab->serialize("kernel_symtab", os);
246#else // !FULL_SYSTEM
247 SERIALIZE_SCALAR(page_ptr);
248#endif
249}
250
251
252void
253System::unserialize(Checkpoint *cp, const string §ion)
254{
255#if FULL_SYSTEM
256 kernelSymtab->unserialize("kernel_symtab", cp, section);
257#else // !FULL_SYSTEM
258 UNSERIALIZE_SCALAR(page_ptr);
259#endif
260}
261
262void
263System::printSystems()
264{
265 vector<System *>::iterator i = systemList.begin();
266 vector<System *>::iterator end = systemList.end();
267 for (; i != end; ++i) {
268 System *sys = *i;
269 cerr << "System " << sys->name() << ": " << hex << sys << endl;
270 }
271}
272
273void
274printSystems()
275{
276 System::printSystems();
277}
278
279const char *System::MemoryModeStrings[3] = {"invalid", "atomic",
280 "timing"};
281
282#if !FULL_SYSTEM
283
284System *
285SystemParams::create()
286{
287 return new System(this);
288}
289
290#endif
|