1/*
2 * Copyright (c) 2014 Advanced Micro Devices, Inc.
3 * Copyright (c) 2012 ARM Limited
4 * All rights reserved
5 *
6 * The license below extends only to copyright in the software and shall
7 * not be construed as granting a license to any other intellectual
8 * property including but not limited to intellectual property relating
9 * to a hardware implementation of the functionality of the software
10 * licensed hereunder. You may use the software subject to the license
11 * terms below provided that you ensure that this notice is replicated
12 * unmodified and in its entirety in all distributions of the software,
13 * modified or unmodified, in source code or in binary form.
14 *
15 * Copyright (c) 2001-2005 The Regents of The University of Michigan
16 * All rights reserved.
17 *
18 * Redistribution and use in source and binary forms, with or without
19 * modification, are permitted provided that the following conditions are
20 * met: redistributions of source code must retain the above copyright
21 * notice, this list of conditions and the following disclaimer;
22 * redistributions in binary form must reproduce the above copyright
23 * notice, this list of conditions and the following disclaimer in the
24 * documentation and/or other materials provided with the distribution;
25 * neither the name of the copyright holders nor the names of its
26 * contributors may be used to endorse or promote products derived from
27 * this software without specific prior written permission.
28 *
29 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
30 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
31 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
32 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
33 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
34 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
35 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
36 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
37 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
38 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
39 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
40 *
41 * Authors: Nathan Binkert
42 * Steve Reinhardt
43 * Ali Saidi
44 */
45
46#include <fcntl.h>
47#include <unistd.h>
48
49#include <cstdio>
50#include <string>
51
52#include "base/loader/object_file.hh"
53#include "base/loader/symtab.hh"
54#include "base/intmath.hh"
55#include "base/statistics.hh"
56#include "config/the_isa.hh"
57#include "cpu/thread_context.hh"
58#include "mem/page_table.hh"
59#include "mem/multi_level_page_table.hh"
60#include "mem/se_translating_port_proxy.hh"
61#include "params/LiveProcess.hh"
62#include "params/Process.hh"
63#include "sim/debug.hh"
64#include "sim/process.hh"
65#include "sim/process_impl.hh"
66#include "sim/stats.hh"
67#include "sim/syscall_emul.hh"
68#include "sim/system.hh"
69
70#if THE_ISA == ALPHA_ISA
71#include "arch/alpha/linux/process.hh"
72#include "arch/alpha/tru64/process.hh"
73#elif THE_ISA == SPARC_ISA
74#include "arch/sparc/linux/process.hh"
75#include "arch/sparc/solaris/process.hh"
76#elif THE_ISA == MIPS_ISA
77#include "arch/mips/linux/process.hh"
78#elif THE_ISA == ARM_ISA
79#include "arch/arm/linux/process.hh"
80#elif THE_ISA == X86_ISA
81#include "arch/x86/linux/process.hh"
82#elif THE_ISA == POWER_ISA
83#include "arch/power/linux/process.hh"
84#else
85#error "THE_ISA not set"
86#endif
87
88
89using namespace std;
90using namespace TheISA;
91
92// current number of allocated processes
93int num_processes = 0;
94
95template<class IntType>
96AuxVector<IntType>::AuxVector(IntType type, IntType val)
97{
98 a_type = TheISA::htog(type);
99 a_val = TheISA::htog(val);
100}
101
102template struct AuxVector<uint32_t>;
103template struct AuxVector<uint64_t>;
104
105Process::Process(ProcessParams * params)
106 : SimObject(params), system(params->system),
107 brk_point(0), stack_base(0), stack_size(0), stack_min(0),
108 max_stack_size(params->max_stack_size),
109 next_thread_stack_base(0),
110 M5_pid(system->allocatePID()),
111 useArchPT(params->useArchPT),
112 kvmInSE(params->kvmInSE),
113 pTable(useArchPT ?
114 static_cast<PageTableBase *>(new ArchPageTable(name(), M5_pid, system)) :
115 static_cast<PageTableBase *>(new FuncPageTable(name(), M5_pid)) ),
116 initVirtMem(system->getSystemPort(), this,
117 SETranslatingPortProxy::Always)
118{
119 string in = params->input;
120 string out = params->output;
121 string err = params->errout;
122
123 // initialize file descriptors to default: same as simulator
124 int stdin_fd, stdout_fd, stderr_fd;
125
126 if (in == "stdin" || in == "cin")
127 stdin_fd = STDIN_FILENO;
128 else if (in == "None")
129 stdin_fd = -1;
130 else
131 stdin_fd = Process::openInputFile(in);
132
133 if (out == "stdout" || out == "cout")
134 stdout_fd = STDOUT_FILENO;
135 else if (out == "stderr" || out == "cerr")
136 stdout_fd = STDERR_FILENO;
137 else if (out == "None")
138 stdout_fd = -1;
139 else
140 stdout_fd = Process::openOutputFile(out);
141
142 if (err == "stdout" || err == "cout")
143 stderr_fd = STDOUT_FILENO;
144 else if (err == "stderr" || err == "cerr")
145 stderr_fd = STDERR_FILENO;
146 else if (err == "None")
147 stderr_fd = -1;
148 else if (err == out)
149 stderr_fd = stdout_fd;
150 else
151 stderr_fd = Process::openOutputFile(err);
152
153 // initialize first 3 fds (stdin, stdout, stderr)
154 Process::FdMap *fdo = &fd_map[STDIN_FILENO];
155 fdo->fd = stdin_fd;
156 fdo->filename = in;
157 fdo->flags = O_RDONLY;
158 fdo->mode = -1;
159 fdo->fileOffset = 0;
160
161 fdo = &fd_map[STDOUT_FILENO];
162 fdo->fd = stdout_fd;
163 fdo->filename = out;
164 fdo->flags = O_WRONLY | O_CREAT | O_TRUNC;
165 fdo->mode = 0774;
166 fdo->fileOffset = 0;
167
168 fdo = &fd_map[STDERR_FILENO];
169 fdo->fd = stderr_fd;
170 fdo->filename = err;
171 fdo->flags = O_WRONLY;
172 fdo->mode = -1;
173 fdo->fileOffset = 0;
174
175
176 // mark remaining fds as free
177 for (int i = 3; i <= MAX_FD; ++i) {
178 fdo = &fd_map[i];
179 fdo->fd = -1;
180 }
181
182 mmap_start = mmap_end = 0;
183 nxm_start = nxm_end = 0;
184 // other parameters will be initialized when the program is loaded
185}
186
187
188void
189Process::regStats()
190{
191 using namespace Stats;
192
193 num_syscalls
194 .name(name() + ".num_syscalls")
195 .desc("Number of system calls")
196 ;
197}
198
199//
200// static helper functions
201//
202int
203Process::openInputFile(const string &filename)
204{
205 int fd = open(filename.c_str(), O_RDONLY);
206
207 if (fd == -1) {
208 perror(NULL);
209 cerr << "unable to open \"" << filename << "\" for reading\n";
210 fatal("can't open input file");
211 }
212
213 return fd;
214}
215
216
217int
218Process::openOutputFile(const string &filename)
219{
220 int fd = open(filename.c_str(), O_WRONLY | O_CREAT | O_TRUNC, 0664);
221
222 if (fd == -1) {
223 perror(NULL);
224 cerr << "unable to open \"" << filename << "\" for writing\n";
225 fatal("can't open output file");
226 }
227
228 return fd;
229}
230
231ThreadContext *
232Process::findFreeContext()
233{
234 int size = contextIds.size();
235 ThreadContext *tc;
236 for (int i = 0; i < size; ++i) {
237 tc = system->getThreadContext(contextIds[i]);
238 if (tc->status() == ThreadContext::Halted) {
239 // inactive context, free to use
240 return tc;
241 }
242 }
243 return NULL;
244}
245
246void
247Process::initState()
248{
249 if (contextIds.empty())
250 fatal("Process %s is not associated with any HW contexts!\n", name());
251
252 // first thread context for this process... initialize & enable
253 ThreadContext *tc = system->getThreadContext(contextIds[0]);
254
255 // mark this context as active so it will start ticking.
256 tc->activate();
257
258 pTable->initState(tc);
259}
260
261// map simulator fd sim_fd to target fd tgt_fd
262void
263Process::dup_fd(int sim_fd, int tgt_fd)
264{
265 if (tgt_fd < 0 || tgt_fd > MAX_FD)
266 panic("Process::dup_fd tried to dup past MAX_FD (%d)", tgt_fd);
267
268 Process::FdMap *fdo = &fd_map[tgt_fd];
269 fdo->fd = sim_fd;
270}
271
272
273// generate new target fd for sim_fd
274int
| 1/*
2 * Copyright (c) 2014 Advanced Micro Devices, Inc.
3 * Copyright (c) 2012 ARM Limited
4 * All rights reserved
5 *
6 * The license below extends only to copyright in the software and shall
7 * not be construed as granting a license to any other intellectual
8 * property including but not limited to intellectual property relating
9 * to a hardware implementation of the functionality of the software
10 * licensed hereunder. You may use the software subject to the license
11 * terms below provided that you ensure that this notice is replicated
12 * unmodified and in its entirety in all distributions of the software,
13 * modified or unmodified, in source code or in binary form.
14 *
15 * Copyright (c) 2001-2005 The Regents of The University of Michigan
16 * All rights reserved.
17 *
18 * Redistribution and use in source and binary forms, with or without
19 * modification, are permitted provided that the following conditions are
20 * met: redistributions of source code must retain the above copyright
21 * notice, this list of conditions and the following disclaimer;
22 * redistributions in binary form must reproduce the above copyright
23 * notice, this list of conditions and the following disclaimer in the
24 * documentation and/or other materials provided with the distribution;
25 * neither the name of the copyright holders nor the names of its
26 * contributors may be used to endorse or promote products derived from
27 * this software without specific prior written permission.
28 *
29 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
30 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
31 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
32 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
33 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
34 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
35 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
36 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
37 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
38 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
39 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
40 *
41 * Authors: Nathan Binkert
42 * Steve Reinhardt
43 * Ali Saidi
44 */
45
46#include <fcntl.h>
47#include <unistd.h>
48
49#include <cstdio>
50#include <string>
51
52#include "base/loader/object_file.hh"
53#include "base/loader/symtab.hh"
54#include "base/intmath.hh"
55#include "base/statistics.hh"
56#include "config/the_isa.hh"
57#include "cpu/thread_context.hh"
58#include "mem/page_table.hh"
59#include "mem/multi_level_page_table.hh"
60#include "mem/se_translating_port_proxy.hh"
61#include "params/LiveProcess.hh"
62#include "params/Process.hh"
63#include "sim/debug.hh"
64#include "sim/process.hh"
65#include "sim/process_impl.hh"
66#include "sim/stats.hh"
67#include "sim/syscall_emul.hh"
68#include "sim/system.hh"
69
70#if THE_ISA == ALPHA_ISA
71#include "arch/alpha/linux/process.hh"
72#include "arch/alpha/tru64/process.hh"
73#elif THE_ISA == SPARC_ISA
74#include "arch/sparc/linux/process.hh"
75#include "arch/sparc/solaris/process.hh"
76#elif THE_ISA == MIPS_ISA
77#include "arch/mips/linux/process.hh"
78#elif THE_ISA == ARM_ISA
79#include "arch/arm/linux/process.hh"
80#elif THE_ISA == X86_ISA
81#include "arch/x86/linux/process.hh"
82#elif THE_ISA == POWER_ISA
83#include "arch/power/linux/process.hh"
84#else
85#error "THE_ISA not set"
86#endif
87
88
89using namespace std;
90using namespace TheISA;
91
92// current number of allocated processes
93int num_processes = 0;
94
95template<class IntType>
96AuxVector<IntType>::AuxVector(IntType type, IntType val)
97{
98 a_type = TheISA::htog(type);
99 a_val = TheISA::htog(val);
100}
101
102template struct AuxVector<uint32_t>;
103template struct AuxVector<uint64_t>;
104
105Process::Process(ProcessParams * params)
106 : SimObject(params), system(params->system),
107 brk_point(0), stack_base(0), stack_size(0), stack_min(0),
108 max_stack_size(params->max_stack_size),
109 next_thread_stack_base(0),
110 M5_pid(system->allocatePID()),
111 useArchPT(params->useArchPT),
112 kvmInSE(params->kvmInSE),
113 pTable(useArchPT ?
114 static_cast<PageTableBase *>(new ArchPageTable(name(), M5_pid, system)) :
115 static_cast<PageTableBase *>(new FuncPageTable(name(), M5_pid)) ),
116 initVirtMem(system->getSystemPort(), this,
117 SETranslatingPortProxy::Always)
118{
119 string in = params->input;
120 string out = params->output;
121 string err = params->errout;
122
123 // initialize file descriptors to default: same as simulator
124 int stdin_fd, stdout_fd, stderr_fd;
125
126 if (in == "stdin" || in == "cin")
127 stdin_fd = STDIN_FILENO;
128 else if (in == "None")
129 stdin_fd = -1;
130 else
131 stdin_fd = Process::openInputFile(in);
132
133 if (out == "stdout" || out == "cout")
134 stdout_fd = STDOUT_FILENO;
135 else if (out == "stderr" || out == "cerr")
136 stdout_fd = STDERR_FILENO;
137 else if (out == "None")
138 stdout_fd = -1;
139 else
140 stdout_fd = Process::openOutputFile(out);
141
142 if (err == "stdout" || err == "cout")
143 stderr_fd = STDOUT_FILENO;
144 else if (err == "stderr" || err == "cerr")
145 stderr_fd = STDERR_FILENO;
146 else if (err == "None")
147 stderr_fd = -1;
148 else if (err == out)
149 stderr_fd = stdout_fd;
150 else
151 stderr_fd = Process::openOutputFile(err);
152
153 // initialize first 3 fds (stdin, stdout, stderr)
154 Process::FdMap *fdo = &fd_map[STDIN_FILENO];
155 fdo->fd = stdin_fd;
156 fdo->filename = in;
157 fdo->flags = O_RDONLY;
158 fdo->mode = -1;
159 fdo->fileOffset = 0;
160
161 fdo = &fd_map[STDOUT_FILENO];
162 fdo->fd = stdout_fd;
163 fdo->filename = out;
164 fdo->flags = O_WRONLY | O_CREAT | O_TRUNC;
165 fdo->mode = 0774;
166 fdo->fileOffset = 0;
167
168 fdo = &fd_map[STDERR_FILENO];
169 fdo->fd = stderr_fd;
170 fdo->filename = err;
171 fdo->flags = O_WRONLY;
172 fdo->mode = -1;
173 fdo->fileOffset = 0;
174
175
176 // mark remaining fds as free
177 for (int i = 3; i <= MAX_FD; ++i) {
178 fdo = &fd_map[i];
179 fdo->fd = -1;
180 }
181
182 mmap_start = mmap_end = 0;
183 nxm_start = nxm_end = 0;
184 // other parameters will be initialized when the program is loaded
185}
186
187
188void
189Process::regStats()
190{
191 using namespace Stats;
192
193 num_syscalls
194 .name(name() + ".num_syscalls")
195 .desc("Number of system calls")
196 ;
197}
198
199//
200// static helper functions
201//
202int
203Process::openInputFile(const string &filename)
204{
205 int fd = open(filename.c_str(), O_RDONLY);
206
207 if (fd == -1) {
208 perror(NULL);
209 cerr << "unable to open \"" << filename << "\" for reading\n";
210 fatal("can't open input file");
211 }
212
213 return fd;
214}
215
216
217int
218Process::openOutputFile(const string &filename)
219{
220 int fd = open(filename.c_str(), O_WRONLY | O_CREAT | O_TRUNC, 0664);
221
222 if (fd == -1) {
223 perror(NULL);
224 cerr << "unable to open \"" << filename << "\" for writing\n";
225 fatal("can't open output file");
226 }
227
228 return fd;
229}
230
231ThreadContext *
232Process::findFreeContext()
233{
234 int size = contextIds.size();
235 ThreadContext *tc;
236 for (int i = 0; i < size; ++i) {
237 tc = system->getThreadContext(contextIds[i]);
238 if (tc->status() == ThreadContext::Halted) {
239 // inactive context, free to use
240 return tc;
241 }
242 }
243 return NULL;
244}
245
246void
247Process::initState()
248{
249 if (contextIds.empty())
250 fatal("Process %s is not associated with any HW contexts!\n", name());
251
252 // first thread context for this process... initialize & enable
253 ThreadContext *tc = system->getThreadContext(contextIds[0]);
254
255 // mark this context as active so it will start ticking.
256 tc->activate();
257
258 pTable->initState(tc);
259}
260
261// map simulator fd sim_fd to target fd tgt_fd
262void
263Process::dup_fd(int sim_fd, int tgt_fd)
264{
265 if (tgt_fd < 0 || tgt_fd > MAX_FD)
266 panic("Process::dup_fd tried to dup past MAX_FD (%d)", tgt_fd);
267
268 Process::FdMap *fdo = &fd_map[tgt_fd];
269 fdo->fd = sim_fd;
270}
271
272
273// generate new target fd for sim_fd
274int
|
275Process::alloc_fd(int sim_fd, string filename, int flags, int mode, bool pipe)
| 275Process::alloc_fd(int sim_fd, const string& filename, int flags, int mode,
276 bool pipe)
|
276{
277 // in case open() returns an error, don't allocate a new fd
278 if (sim_fd == -1)
279 return -1;
280
281 // find first free target fd
282 for (int free_fd = 0; free_fd <= MAX_FD; ++free_fd) {
283 Process::FdMap *fdo = &fd_map[free_fd];
284 if (fdo->fd == -1 && fdo->driver == NULL) {
285 fdo->fd = sim_fd;
286 fdo->filename = filename;
287 fdo->mode = mode;
288 fdo->fileOffset = 0;
289 fdo->flags = flags;
290 fdo->isPipe = pipe;
291 fdo->readPipeSource = 0;
292 return free_fd;
293 }
294 }
295
296 panic("Process::alloc_fd: out of file descriptors!");
297}
298
299
300// free target fd (e.g., after close)
301void
302Process::free_fd(int tgt_fd)
303{
304 Process::FdMap *fdo = &fd_map[tgt_fd];
305 if (fdo->fd == -1)
306 warn("Process::free_fd: request to free unused fd %d", tgt_fd);
307
308 fdo->fd = -1;
309 fdo->filename = "NULL";
310 fdo->mode = 0;
311 fdo->fileOffset = 0;
312 fdo->flags = 0;
313 fdo->isPipe = false;
314 fdo->readPipeSource = 0;
315 fdo->driver = NULL;
316}
317
318
319// look up simulator fd for given target fd
320int
321Process::sim_fd(int tgt_fd)
322{
323 if (tgt_fd < 0 || tgt_fd > MAX_FD)
324 return -1;
325
326 return fd_map[tgt_fd].fd;
327}
328
329Process::FdMap *
330Process::sim_fd_obj(int tgt_fd)
331{
332 if (tgt_fd < 0 || tgt_fd > MAX_FD)
333 return NULL;
334
335 return &fd_map[tgt_fd];
336}
337
338void
339Process::allocateMem(Addr vaddr, int64_t size, bool clobber)
340{
341 int npages = divCeil(size, (int64_t)PageBytes);
342 Addr paddr = system->allocPhysPages(npages);
343 pTable->map(vaddr, paddr, size, clobber ? PageTableBase::Clobber : 0);
344}
345
346bool
347Process::fixupStackFault(Addr vaddr)
348{
349 // Check if this is already on the stack and there's just no page there
350 // yet.
351 if (vaddr >= stack_min && vaddr < stack_base) {
352 allocateMem(roundDown(vaddr, PageBytes), PageBytes);
353 return true;
354 }
355
356 // We've accessed the next page of the stack, so extend it to include
357 // this address.
358 if (vaddr < stack_min && vaddr >= stack_base - max_stack_size) {
359 while (vaddr < stack_min) {
360 stack_min -= TheISA::PageBytes;
361 if (stack_base - stack_min > max_stack_size)
362 fatal("Maximum stack size exceeded\n");
363 allocateMem(stack_min, TheISA::PageBytes);
364 inform("Increasing stack size by one page.");
365 };
366 return true;
367 }
368 return false;
369}
370
371// find all offsets for currently open files and save them
372void
373Process::fix_file_offsets()
374{
375 Process::FdMap *fdo_stdin = &fd_map[STDIN_FILENO];
376 Process::FdMap *fdo_stdout = &fd_map[STDOUT_FILENO];
377 Process::FdMap *fdo_stderr = &fd_map[STDERR_FILENO];
378 string in = fdo_stdin->filename;
379 string out = fdo_stdout->filename;
380 string err = fdo_stderr->filename;
381
382 // initialize file descriptors to default: same as simulator
383 int stdin_fd, stdout_fd, stderr_fd;
384
385 if (in == "stdin" || in == "cin")
386 stdin_fd = STDIN_FILENO;
| 277{
278 // in case open() returns an error, don't allocate a new fd
279 if (sim_fd == -1)
280 return -1;
281
282 // find first free target fd
283 for (int free_fd = 0; free_fd <= MAX_FD; ++free_fd) {
284 Process::FdMap *fdo = &fd_map[free_fd];
285 if (fdo->fd == -1 && fdo->driver == NULL) {
286 fdo->fd = sim_fd;
287 fdo->filename = filename;
288 fdo->mode = mode;
289 fdo->fileOffset = 0;
290 fdo->flags = flags;
291 fdo->isPipe = pipe;
292 fdo->readPipeSource = 0;
293 return free_fd;
294 }
295 }
296
297 panic("Process::alloc_fd: out of file descriptors!");
298}
299
300
301// free target fd (e.g., after close)
302void
303Process::free_fd(int tgt_fd)
304{
305 Process::FdMap *fdo = &fd_map[tgt_fd];
306 if (fdo->fd == -1)
307 warn("Process::free_fd: request to free unused fd %d", tgt_fd);
308
309 fdo->fd = -1;
310 fdo->filename = "NULL";
311 fdo->mode = 0;
312 fdo->fileOffset = 0;
313 fdo->flags = 0;
314 fdo->isPipe = false;
315 fdo->readPipeSource = 0;
316 fdo->driver = NULL;
317}
318
319
320// look up simulator fd for given target fd
321int
322Process::sim_fd(int tgt_fd)
323{
324 if (tgt_fd < 0 || tgt_fd > MAX_FD)
325 return -1;
326
327 return fd_map[tgt_fd].fd;
328}
329
330Process::FdMap *
331Process::sim_fd_obj(int tgt_fd)
332{
333 if (tgt_fd < 0 || tgt_fd > MAX_FD)
334 return NULL;
335
336 return &fd_map[tgt_fd];
337}
338
339void
340Process::allocateMem(Addr vaddr, int64_t size, bool clobber)
341{
342 int npages = divCeil(size, (int64_t)PageBytes);
343 Addr paddr = system->allocPhysPages(npages);
344 pTable->map(vaddr, paddr, size, clobber ? PageTableBase::Clobber : 0);
345}
346
347bool
348Process::fixupStackFault(Addr vaddr)
349{
350 // Check if this is already on the stack and there's just no page there
351 // yet.
352 if (vaddr >= stack_min && vaddr < stack_base) {
353 allocateMem(roundDown(vaddr, PageBytes), PageBytes);
354 return true;
355 }
356
357 // We've accessed the next page of the stack, so extend it to include
358 // this address.
359 if (vaddr < stack_min && vaddr >= stack_base - max_stack_size) {
360 while (vaddr < stack_min) {
361 stack_min -= TheISA::PageBytes;
362 if (stack_base - stack_min > max_stack_size)
363 fatal("Maximum stack size exceeded\n");
364 allocateMem(stack_min, TheISA::PageBytes);
365 inform("Increasing stack size by one page.");
366 };
367 return true;
368 }
369 return false;
370}
371
372// find all offsets for currently open files and save them
373void
374Process::fix_file_offsets()
375{
376 Process::FdMap *fdo_stdin = &fd_map[STDIN_FILENO];
377 Process::FdMap *fdo_stdout = &fd_map[STDOUT_FILENO];
378 Process::FdMap *fdo_stderr = &fd_map[STDERR_FILENO];
379 string in = fdo_stdin->filename;
380 string out = fdo_stdout->filename;
381 string err = fdo_stderr->filename;
382
383 // initialize file descriptors to default: same as simulator
384 int stdin_fd, stdout_fd, stderr_fd;
385
386 if (in == "stdin" || in == "cin")
387 stdin_fd = STDIN_FILENO;
|
387 else if (in == "None")
| 388 else if (in == "NULL")
|
388 stdin_fd = -1;
389 else {
390 // open standard in and seek to the right location
391 stdin_fd = Process::openInputFile(in);
392 if (lseek(stdin_fd, fdo_stdin->fileOffset, SEEK_SET) < 0)
393 panic("Unable to seek to correct location in file: %s", in);
394 }
395
396 if (out == "stdout" || out == "cout")
397 stdout_fd = STDOUT_FILENO;
398 else if (out == "stderr" || out == "cerr")
399 stdout_fd = STDERR_FILENO;
| 389 stdin_fd = -1;
390 else {
391 // open standard in and seek to the right location
392 stdin_fd = Process::openInputFile(in);
393 if (lseek(stdin_fd, fdo_stdin->fileOffset, SEEK_SET) < 0)
394 panic("Unable to seek to correct location in file: %s", in);
395 }
396
397 if (out == "stdout" || out == "cout")
398 stdout_fd = STDOUT_FILENO;
399 else if (out == "stderr" || out == "cerr")
400 stdout_fd = STDERR_FILENO;
|
400 else if (out == "None")
| 401 else if (out == "NULL")
|
401 stdout_fd = -1;
402 else {
403 stdout_fd = Process::openOutputFile(out);
404 if (lseek(stdout_fd, fdo_stdout->fileOffset, SEEK_SET) < 0)
405 panic("Unable to seek to correct location in file: %s", out);
406 }
407
408 if (err == "stdout" || err == "cout")
409 stderr_fd = STDOUT_FILENO;
410 else if (err == "stderr" || err == "cerr")
411 stderr_fd = STDERR_FILENO;
| 402 stdout_fd = -1;
403 else {
404 stdout_fd = Process::openOutputFile(out);
405 if (lseek(stdout_fd, fdo_stdout->fileOffset, SEEK_SET) < 0)
406 panic("Unable to seek to correct location in file: %s", out);
407 }
408
409 if (err == "stdout" || err == "cout")
410 stderr_fd = STDOUT_FILENO;
411 else if (err == "stderr" || err == "cerr")
412 stderr_fd = STDERR_FILENO;
|
412 else if (err == "None")
| 413 else if (err == "NULL")
|
413 stderr_fd = -1;
414 else if (err == out)
415 stderr_fd = stdout_fd;
416 else {
417 stderr_fd = Process::openOutputFile(err);
418 if (lseek(stderr_fd, fdo_stderr->fileOffset, SEEK_SET) < 0)
419 panic("Unable to seek to correct location in file: %s", err);
420 }
421
422 fdo_stdin->fd = stdin_fd;
423 fdo_stdout->fd = stdout_fd;
424 fdo_stderr->fd = stderr_fd;
425
426
427 for (int free_fd = 3; free_fd <= MAX_FD; ++free_fd) {
428 Process::FdMap *fdo = &fd_map[free_fd];
429 if (fdo->fd != -1) {
430 if (fdo->isPipe){
431 if (fdo->filename == "PIPE-WRITE")
432 continue;
433 else {
434 assert (fdo->filename == "PIPE-READ");
435 //create a new pipe
436 int fds[2];
437 int pipe_retval = pipe(fds);
438
439 if (pipe_retval < 0) {
440 // error
441 panic("Unable to create new pipe.");
442 }
443 fdo->fd = fds[0]; //set read pipe
444 Process::FdMap *fdo_write = &fd_map[fdo->readPipeSource];
445 if (fdo_write->filename != "PIPE-WRITE")
446 panic ("Couldn't find write end of the pipe");
447
448 fdo_write->fd = fds[1];//set write pipe
449 }
450 } else {
451 //Open file
452 int fd = open(fdo->filename.c_str(), fdo->flags, fdo->mode);
453
454 if (fd == -1)
455 panic("Unable to open file: %s", fdo->filename);
456 fdo->fd = fd;
457
458 //Seek to correct location before checkpoint
| 414 stderr_fd = -1;
415 else if (err == out)
416 stderr_fd = stdout_fd;
417 else {
418 stderr_fd = Process::openOutputFile(err);
419 if (lseek(stderr_fd, fdo_stderr->fileOffset, SEEK_SET) < 0)
420 panic("Unable to seek to correct location in file: %s", err);
421 }
422
423 fdo_stdin->fd = stdin_fd;
424 fdo_stdout->fd = stdout_fd;
425 fdo_stderr->fd = stderr_fd;
426
427
428 for (int free_fd = 3; free_fd <= MAX_FD; ++free_fd) {
429 Process::FdMap *fdo = &fd_map[free_fd];
430 if (fdo->fd != -1) {
431 if (fdo->isPipe){
432 if (fdo->filename == "PIPE-WRITE")
433 continue;
434 else {
435 assert (fdo->filename == "PIPE-READ");
436 //create a new pipe
437 int fds[2];
438 int pipe_retval = pipe(fds);
439
440 if (pipe_retval < 0) {
441 // error
442 panic("Unable to create new pipe.");
443 }
444 fdo->fd = fds[0]; //set read pipe
445 Process::FdMap *fdo_write = &fd_map[fdo->readPipeSource];
446 if (fdo_write->filename != "PIPE-WRITE")
447 panic ("Couldn't find write end of the pipe");
448
449 fdo_write->fd = fds[1];//set write pipe
450 }
451 } else {
452 //Open file
453 int fd = open(fdo->filename.c_str(), fdo->flags, fdo->mode);
454
455 if (fd == -1)
456 panic("Unable to open file: %s", fdo->filename);
457 fdo->fd = fd;
458
459 //Seek to correct location before checkpoint
|
459 if (lseek(fd,fdo->fileOffset, SEEK_SET) < 0)
| 460 if (lseek(fd, fdo->fileOffset, SEEK_SET) < 0)
|
460 panic("Unable to seek to correct location in file: %s",
461 fdo->filename);
462 }
463 }
464 }
465}
466
467void
468Process::find_file_offsets()
469{
470 for (int free_fd = 0; free_fd <= MAX_FD; ++free_fd) {
471 Process::FdMap *fdo = &fd_map[free_fd];
472 if (fdo->fd != -1) {
473 fdo->fileOffset = lseek(fdo->fd, 0, SEEK_CUR);
474 } else {
| 461 panic("Unable to seek to correct location in file: %s",
462 fdo->filename);
463 }
464 }
465 }
466}
467
468void
469Process::find_file_offsets()
470{
471 for (int free_fd = 0; free_fd <= MAX_FD; ++free_fd) {
472 Process::FdMap *fdo = &fd_map[free_fd];
473 if (fdo->fd != -1) {
474 fdo->fileOffset = lseek(fdo->fd, 0, SEEK_CUR);
475 } else {
|
475 fdo->filename = "NULL";
476 fdo->fileOffset = 0;
| 476 fdo->filename = "NULL";
477 fdo->fileOffset = 0;
|
477 }
478 }
479}
480
481void
482Process::setReadPipeSource(int read_pipe_fd, int source_fd)
483{
484 Process::FdMap *fdo = &fd_map[read_pipe_fd];
485 fdo->readPipeSource = source_fd;
486}
487
488void
489Process::FdMap::serialize(std::ostream &os)
490{
491 SERIALIZE_SCALAR(fd);
492 SERIALIZE_SCALAR(isPipe);
493 SERIALIZE_SCALAR(filename);
494 SERIALIZE_SCALAR(flags);
495 SERIALIZE_SCALAR(readPipeSource);
496 SERIALIZE_SCALAR(fileOffset);
497}
498
499void
500Process::FdMap::unserialize(Checkpoint *cp, const std::string §ion)
501{
502 UNSERIALIZE_SCALAR(fd);
503 UNSERIALIZE_SCALAR(isPipe);
504 UNSERIALIZE_SCALAR(filename);
505 UNSERIALIZE_SCALAR(flags);
506 UNSERIALIZE_SCALAR(readPipeSource);
507 UNSERIALIZE_SCALAR(fileOffset);
508}
509
510void
511Process::serialize(std::ostream &os)
512{
513 SERIALIZE_SCALAR(brk_point);
514 SERIALIZE_SCALAR(stack_base);
515 SERIALIZE_SCALAR(stack_size);
516 SERIALIZE_SCALAR(stack_min);
517 SERIALIZE_SCALAR(next_thread_stack_base);
518 SERIALIZE_SCALAR(mmap_start);
519 SERIALIZE_SCALAR(mmap_end);
520 SERIALIZE_SCALAR(nxm_start);
521 SERIALIZE_SCALAR(nxm_end);
522 find_file_offsets();
523 pTable->serialize(os);
524 for (int x = 0; x <= MAX_FD; x++) {
525 nameOut(os, csprintf("%s.FdMap%d", name(), x));
526 fd_map[x].serialize(os);
527 }
528 SERIALIZE_SCALAR(M5_pid);
529
530}
531
532void
533Process::unserialize(Checkpoint *cp, const std::string §ion)
534{
535 UNSERIALIZE_SCALAR(brk_point);
536 UNSERIALIZE_SCALAR(stack_base);
537 UNSERIALIZE_SCALAR(stack_size);
538 UNSERIALIZE_SCALAR(stack_min);
539 UNSERIALIZE_SCALAR(next_thread_stack_base);
540 UNSERIALIZE_SCALAR(mmap_start);
541 UNSERIALIZE_SCALAR(mmap_end);
542 UNSERIALIZE_SCALAR(nxm_start);
543 UNSERIALIZE_SCALAR(nxm_end);
544 pTable->unserialize(cp, section);
545 for (int x = 0; x <= MAX_FD; x++) {
546 fd_map[x].unserialize(cp, csprintf("%s.FdMap%d", section, x));
547 }
548 fix_file_offsets();
549 UNSERIALIZE_OPT_SCALAR(M5_pid);
550 // The above returns a bool so that you could do something if you don't
551 // find the param in the checkpoint if you wanted to, like set a default
552 // but in this case we'll just stick with the instantianted value if not
553 // found.
554}
555
556
557bool
558Process::map(Addr vaddr, Addr paddr, int size, bool cacheable)
559{
560 pTable->map(vaddr, paddr, size,
561 cacheable ? 0 : PageTableBase::Uncacheable);
562 return true;
563}
564
565
566////////////////////////////////////////////////////////////////////////
567//
568// LiveProcess member definitions
569//
570////////////////////////////////////////////////////////////////////////
571
572
573LiveProcess::LiveProcess(LiveProcessParams *params, ObjectFile *_objFile)
574 : Process(params), objFile(_objFile),
575 argv(params->cmd), envp(params->env), cwd(params->cwd),
576 __uid(params->uid), __euid(params->euid),
577 __gid(params->gid), __egid(params->egid),
578 __pid(params->pid), __ppid(params->ppid),
579 drivers(params->drivers)
580{
581
582 // load up symbols, if any... these may be used for debugging or
583 // profiling.
584 if (!debugSymbolTable) {
585 debugSymbolTable = new SymbolTable();
586 if (!objFile->loadGlobalSymbols(debugSymbolTable) ||
587 !objFile->loadLocalSymbols(debugSymbolTable) ||
588 !objFile->loadWeakSymbols(debugSymbolTable)) {
589 // didn't load any symbols
590 delete debugSymbolTable;
591 debugSymbolTable = NULL;
592 }
593 }
594}
595
596void
597LiveProcess::syscall(int64_t callnum, ThreadContext *tc)
598{
599 num_syscalls++;
600
601 SyscallDesc *desc = getDesc(callnum);
602 if (desc == NULL)
603 fatal("Syscall %d out of range", callnum);
604
605 desc->doSyscall(callnum, this, tc);
606}
607
608IntReg
609LiveProcess::getSyscallArg(ThreadContext *tc, int &i, int width)
610{
611 return getSyscallArg(tc, i);
612}
613
614
615EmulatedDriver *
616LiveProcess::findDriver(std::string filename)
617{
618 for (EmulatedDriver *d : drivers) {
619 if (d->match(filename))
620 return d;
621 }
622
623 return NULL;
624}
625
626
627LiveProcess *
628LiveProcess::create(LiveProcessParams * params)
629{
630 LiveProcess *process = NULL;
631
632 string executable =
633 params->executable == "" ? params->cmd[0] : params->executable;
634 ObjectFile *objFile = createObjectFile(executable);
635 if (objFile == NULL) {
636 fatal("Can't load object file %s", executable);
637 }
638
639 if (objFile->isDynamic())
640 fatal("Object file is a dynamic executable however only static "
641 "executables are supported!\n Please recompile your "
642 "executable as a static binary and try again.\n");
643
644#if THE_ISA == ALPHA_ISA
645 if (objFile->getArch() != ObjectFile::Alpha)
646 fatal("Object file architecture does not match compiled ISA (Alpha).");
647
648 switch (objFile->getOpSys()) {
649 case ObjectFile::Tru64:
650 process = new AlphaTru64Process(params, objFile);
651 break;
652
653 case ObjectFile::UnknownOpSys:
654 warn("Unknown operating system; assuming Linux.");
655 // fall through
656 case ObjectFile::Linux:
657 process = new AlphaLinuxProcess(params, objFile);
658 break;
659
660 default:
661 fatal("Unknown/unsupported operating system.");
662 }
663#elif THE_ISA == SPARC_ISA
664 if (objFile->getArch() != ObjectFile::SPARC64 &&
665 objFile->getArch() != ObjectFile::SPARC32)
666 fatal("Object file architecture does not match compiled ISA (SPARC).");
667 switch (objFile->getOpSys()) {
668 case ObjectFile::UnknownOpSys:
669 warn("Unknown operating system; assuming Linux.");
670 // fall through
671 case ObjectFile::Linux:
672 if (objFile->getArch() == ObjectFile::SPARC64) {
673 process = new Sparc64LinuxProcess(params, objFile);
674 } else {
675 process = new Sparc32LinuxProcess(params, objFile);
676 }
677 break;
678
679
680 case ObjectFile::Solaris:
681 process = new SparcSolarisProcess(params, objFile);
682 break;
683
684 default:
685 fatal("Unknown/unsupported operating system.");
686 }
687#elif THE_ISA == X86_ISA
688 if (objFile->getArch() != ObjectFile::X86_64 &&
689 objFile->getArch() != ObjectFile::I386)
690 fatal("Object file architecture does not match compiled ISA (x86).");
691 switch (objFile->getOpSys()) {
692 case ObjectFile::UnknownOpSys:
693 warn("Unknown operating system; assuming Linux.");
694 // fall through
695 case ObjectFile::Linux:
696 if (objFile->getArch() == ObjectFile::X86_64) {
697 process = new X86_64LinuxProcess(params, objFile);
698 } else {
699 process = new I386LinuxProcess(params, objFile);
700 }
701 break;
702
703 default:
704 fatal("Unknown/unsupported operating system.");
705 }
706#elif THE_ISA == MIPS_ISA
707 if (objFile->getArch() != ObjectFile::Mips)
708 fatal("Object file architecture does not match compiled ISA (MIPS).");
709 switch (objFile->getOpSys()) {
710 case ObjectFile::UnknownOpSys:
711 warn("Unknown operating system; assuming Linux.");
712 // fall through
713 case ObjectFile::Linux:
714 process = new MipsLinuxProcess(params, objFile);
715 break;
716
717 default:
718 fatal("Unknown/unsupported operating system.");
719 }
720#elif THE_ISA == ARM_ISA
721 ObjectFile::Arch arch = objFile->getArch();
722 if (arch != ObjectFile::Arm && arch != ObjectFile::Thumb &&
723 arch != ObjectFile::Arm64)
724 fatal("Object file architecture does not match compiled ISA (ARM).");
725 switch (objFile->getOpSys()) {
726 case ObjectFile::UnknownOpSys:
727 warn("Unknown operating system; assuming Linux.");
728 // fall through
729 case ObjectFile::Linux:
730 if (arch == ObjectFile::Arm64) {
731 process = new ArmLinuxProcess64(params, objFile,
732 objFile->getArch());
733 } else {
734 process = new ArmLinuxProcess32(params, objFile,
735 objFile->getArch());
736 }
737 break;
738 case ObjectFile::LinuxArmOABI:
739 fatal("M5 does not support ARM OABI binaries. Please recompile with an"
740 " EABI compiler.");
741 default:
742 fatal("Unknown/unsupported operating system.");
743 }
744#elif THE_ISA == POWER_ISA
745 if (objFile->getArch() != ObjectFile::Power)
746 fatal("Object file architecture does not match compiled ISA (Power).");
747 switch (objFile->getOpSys()) {
748 case ObjectFile::UnknownOpSys:
749 warn("Unknown operating system; assuming Linux.");
750 // fall through
751 case ObjectFile::Linux:
752 process = new PowerLinuxProcess(params, objFile);
753 break;
754
755 default:
756 fatal("Unknown/unsupported operating system.");
757 }
758#else
759#error "THE_ISA not set"
760#endif
761
762 if (process == NULL)
763 fatal("Unknown error creating process object.");
764 return process;
765}
766
767LiveProcess *
768LiveProcessParams::create()
769{
770 return LiveProcess::create(this);
771}
| 478 }
479 }
480}
481
482void
483Process::setReadPipeSource(int read_pipe_fd, int source_fd)
484{
485 Process::FdMap *fdo = &fd_map[read_pipe_fd];
486 fdo->readPipeSource = source_fd;
487}
488
489void
490Process::FdMap::serialize(std::ostream &os)
491{
492 SERIALIZE_SCALAR(fd);
493 SERIALIZE_SCALAR(isPipe);
494 SERIALIZE_SCALAR(filename);
495 SERIALIZE_SCALAR(flags);
496 SERIALIZE_SCALAR(readPipeSource);
497 SERIALIZE_SCALAR(fileOffset);
498}
499
500void
501Process::FdMap::unserialize(Checkpoint *cp, const std::string §ion)
502{
503 UNSERIALIZE_SCALAR(fd);
504 UNSERIALIZE_SCALAR(isPipe);
505 UNSERIALIZE_SCALAR(filename);
506 UNSERIALIZE_SCALAR(flags);
507 UNSERIALIZE_SCALAR(readPipeSource);
508 UNSERIALIZE_SCALAR(fileOffset);
509}
510
511void
512Process::serialize(std::ostream &os)
513{
514 SERIALIZE_SCALAR(brk_point);
515 SERIALIZE_SCALAR(stack_base);
516 SERIALIZE_SCALAR(stack_size);
517 SERIALIZE_SCALAR(stack_min);
518 SERIALIZE_SCALAR(next_thread_stack_base);
519 SERIALIZE_SCALAR(mmap_start);
520 SERIALIZE_SCALAR(mmap_end);
521 SERIALIZE_SCALAR(nxm_start);
522 SERIALIZE_SCALAR(nxm_end);
523 find_file_offsets();
524 pTable->serialize(os);
525 for (int x = 0; x <= MAX_FD; x++) {
526 nameOut(os, csprintf("%s.FdMap%d", name(), x));
527 fd_map[x].serialize(os);
528 }
529 SERIALIZE_SCALAR(M5_pid);
530
531}
532
533void
534Process::unserialize(Checkpoint *cp, const std::string §ion)
535{
536 UNSERIALIZE_SCALAR(brk_point);
537 UNSERIALIZE_SCALAR(stack_base);
538 UNSERIALIZE_SCALAR(stack_size);
539 UNSERIALIZE_SCALAR(stack_min);
540 UNSERIALIZE_SCALAR(next_thread_stack_base);
541 UNSERIALIZE_SCALAR(mmap_start);
542 UNSERIALIZE_SCALAR(mmap_end);
543 UNSERIALIZE_SCALAR(nxm_start);
544 UNSERIALIZE_SCALAR(nxm_end);
545 pTable->unserialize(cp, section);
546 for (int x = 0; x <= MAX_FD; x++) {
547 fd_map[x].unserialize(cp, csprintf("%s.FdMap%d", section, x));
548 }
549 fix_file_offsets();
550 UNSERIALIZE_OPT_SCALAR(M5_pid);
551 // The above returns a bool so that you could do something if you don't
552 // find the param in the checkpoint if you wanted to, like set a default
553 // but in this case we'll just stick with the instantianted value if not
554 // found.
555}
556
557
558bool
559Process::map(Addr vaddr, Addr paddr, int size, bool cacheable)
560{
561 pTable->map(vaddr, paddr, size,
562 cacheable ? 0 : PageTableBase::Uncacheable);
563 return true;
564}
565
566
567////////////////////////////////////////////////////////////////////////
568//
569// LiveProcess member definitions
570//
571////////////////////////////////////////////////////////////////////////
572
573
574LiveProcess::LiveProcess(LiveProcessParams *params, ObjectFile *_objFile)
575 : Process(params), objFile(_objFile),
576 argv(params->cmd), envp(params->env), cwd(params->cwd),
577 __uid(params->uid), __euid(params->euid),
578 __gid(params->gid), __egid(params->egid),
579 __pid(params->pid), __ppid(params->ppid),
580 drivers(params->drivers)
581{
582
583 // load up symbols, if any... these may be used for debugging or
584 // profiling.
585 if (!debugSymbolTable) {
586 debugSymbolTable = new SymbolTable();
587 if (!objFile->loadGlobalSymbols(debugSymbolTable) ||
588 !objFile->loadLocalSymbols(debugSymbolTable) ||
589 !objFile->loadWeakSymbols(debugSymbolTable)) {
590 // didn't load any symbols
591 delete debugSymbolTable;
592 debugSymbolTable = NULL;
593 }
594 }
595}
596
597void
598LiveProcess::syscall(int64_t callnum, ThreadContext *tc)
599{
600 num_syscalls++;
601
602 SyscallDesc *desc = getDesc(callnum);
603 if (desc == NULL)
604 fatal("Syscall %d out of range", callnum);
605
606 desc->doSyscall(callnum, this, tc);
607}
608
609IntReg
610LiveProcess::getSyscallArg(ThreadContext *tc, int &i, int width)
611{
612 return getSyscallArg(tc, i);
613}
614
615
616EmulatedDriver *
617LiveProcess::findDriver(std::string filename)
618{
619 for (EmulatedDriver *d : drivers) {
620 if (d->match(filename))
621 return d;
622 }
623
624 return NULL;
625}
626
627
628LiveProcess *
629LiveProcess::create(LiveProcessParams * params)
630{
631 LiveProcess *process = NULL;
632
633 string executable =
634 params->executable == "" ? params->cmd[0] : params->executable;
635 ObjectFile *objFile = createObjectFile(executable);
636 if (objFile == NULL) {
637 fatal("Can't load object file %s", executable);
638 }
639
640 if (objFile->isDynamic())
641 fatal("Object file is a dynamic executable however only static "
642 "executables are supported!\n Please recompile your "
643 "executable as a static binary and try again.\n");
644
645#if THE_ISA == ALPHA_ISA
646 if (objFile->getArch() != ObjectFile::Alpha)
647 fatal("Object file architecture does not match compiled ISA (Alpha).");
648
649 switch (objFile->getOpSys()) {
650 case ObjectFile::Tru64:
651 process = new AlphaTru64Process(params, objFile);
652 break;
653
654 case ObjectFile::UnknownOpSys:
655 warn("Unknown operating system; assuming Linux.");
656 // fall through
657 case ObjectFile::Linux:
658 process = new AlphaLinuxProcess(params, objFile);
659 break;
660
661 default:
662 fatal("Unknown/unsupported operating system.");
663 }
664#elif THE_ISA == SPARC_ISA
665 if (objFile->getArch() != ObjectFile::SPARC64 &&
666 objFile->getArch() != ObjectFile::SPARC32)
667 fatal("Object file architecture does not match compiled ISA (SPARC).");
668 switch (objFile->getOpSys()) {
669 case ObjectFile::UnknownOpSys:
670 warn("Unknown operating system; assuming Linux.");
671 // fall through
672 case ObjectFile::Linux:
673 if (objFile->getArch() == ObjectFile::SPARC64) {
674 process = new Sparc64LinuxProcess(params, objFile);
675 } else {
676 process = new Sparc32LinuxProcess(params, objFile);
677 }
678 break;
679
680
681 case ObjectFile::Solaris:
682 process = new SparcSolarisProcess(params, objFile);
683 break;
684
685 default:
686 fatal("Unknown/unsupported operating system.");
687 }
688#elif THE_ISA == X86_ISA
689 if (objFile->getArch() != ObjectFile::X86_64 &&
690 objFile->getArch() != ObjectFile::I386)
691 fatal("Object file architecture does not match compiled ISA (x86).");
692 switch (objFile->getOpSys()) {
693 case ObjectFile::UnknownOpSys:
694 warn("Unknown operating system; assuming Linux.");
695 // fall through
696 case ObjectFile::Linux:
697 if (objFile->getArch() == ObjectFile::X86_64) {
698 process = new X86_64LinuxProcess(params, objFile);
699 } else {
700 process = new I386LinuxProcess(params, objFile);
701 }
702 break;
703
704 default:
705 fatal("Unknown/unsupported operating system.");
706 }
707#elif THE_ISA == MIPS_ISA
708 if (objFile->getArch() != ObjectFile::Mips)
709 fatal("Object file architecture does not match compiled ISA (MIPS).");
710 switch (objFile->getOpSys()) {
711 case ObjectFile::UnknownOpSys:
712 warn("Unknown operating system; assuming Linux.");
713 // fall through
714 case ObjectFile::Linux:
715 process = new MipsLinuxProcess(params, objFile);
716 break;
717
718 default:
719 fatal("Unknown/unsupported operating system.");
720 }
721#elif THE_ISA == ARM_ISA
722 ObjectFile::Arch arch = objFile->getArch();
723 if (arch != ObjectFile::Arm && arch != ObjectFile::Thumb &&
724 arch != ObjectFile::Arm64)
725 fatal("Object file architecture does not match compiled ISA (ARM).");
726 switch (objFile->getOpSys()) {
727 case ObjectFile::UnknownOpSys:
728 warn("Unknown operating system; assuming Linux.");
729 // fall through
730 case ObjectFile::Linux:
731 if (arch == ObjectFile::Arm64) {
732 process = new ArmLinuxProcess64(params, objFile,
733 objFile->getArch());
734 } else {
735 process = new ArmLinuxProcess32(params, objFile,
736 objFile->getArch());
737 }
738 break;
739 case ObjectFile::LinuxArmOABI:
740 fatal("M5 does not support ARM OABI binaries. Please recompile with an"
741 " EABI compiler.");
742 default:
743 fatal("Unknown/unsupported operating system.");
744 }
745#elif THE_ISA == POWER_ISA
746 if (objFile->getArch() != ObjectFile::Power)
747 fatal("Object file architecture does not match compiled ISA (Power).");
748 switch (objFile->getOpSys()) {
749 case ObjectFile::UnknownOpSys:
750 warn("Unknown operating system; assuming Linux.");
751 // fall through
752 case ObjectFile::Linux:
753 process = new PowerLinuxProcess(params, objFile);
754 break;
755
756 default:
757 fatal("Unknown/unsupported operating system.");
758 }
759#else
760#error "THE_ISA not set"
761#endif
762
763 if (process == NULL)
764 fatal("Unknown error creating process object.");
765 return process;
766}
767
768LiveProcess *
769LiveProcessParams::create()
770{
771 return LiveProcess::create(this);
772}
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