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 max_stack_size(params->max_stack_size),
108 M5_pid(system->allocatePID()),
109 useArchPT(params->useArchPT),
110 pTable(useArchPT ?
111 static_cast<PageTableBase *>(new ArchPageTable(name(), M5_pid, system)) :
112 static_cast<PageTableBase *>(new FuncPageTable(name(), M5_pid)) ),
113 initVirtMem(system->getSystemPort(), this,
114 SETranslatingPortProxy::Always)
115{
116 string in = params->input;
117 string out = params->output;
118 string err = params->errout;
119
120 // initialize file descriptors to default: same as simulator
121 int stdin_fd, stdout_fd, stderr_fd;
122
123 if (in == "stdin" || in == "cin")
124 stdin_fd = STDIN_FILENO;
125 else if (in == "None")
126 stdin_fd = -1;
127 else
128 stdin_fd = Process::openInputFile(in);
129
130 if (out == "stdout" || out == "cout")
131 stdout_fd = STDOUT_FILENO;
132 else if (out == "stderr" || out == "cerr")
133 stdout_fd = STDERR_FILENO;
134 else if (out == "None")
135 stdout_fd = -1;
136 else
137 stdout_fd = Process::openOutputFile(out);
138
139 if (err == "stdout" || err == "cout")
140 stderr_fd = STDOUT_FILENO;
141 else if (err == "stderr" || err == "cerr")
142 stderr_fd = STDERR_FILENO;
143 else if (err == "None")
144 stderr_fd = -1;
145 else if (err == out)
146 stderr_fd = stdout_fd;
147 else
148 stderr_fd = Process::openOutputFile(err);
149
150 // initialize first 3 fds (stdin, stdout, stderr)
151 Process::FdMap *fdo = &fd_map[STDIN_FILENO];
152 fdo->fd = stdin_fd;
153 fdo->filename = in;
154 fdo->flags = O_RDONLY;
155 fdo->mode = -1;
156 fdo->fileOffset = 0;
157
158 fdo = &fd_map[STDOUT_FILENO];
159 fdo->fd = stdout_fd;
160 fdo->filename = out;
161 fdo->flags = O_WRONLY | O_CREAT | O_TRUNC;
162 fdo->mode = 0774;
163 fdo->fileOffset = 0;
164
165 fdo = &fd_map[STDERR_FILENO];
166 fdo->fd = stderr_fd;
167 fdo->filename = err;
168 fdo->flags = O_WRONLY;
169 fdo->mode = -1;
170 fdo->fileOffset = 0;
171
172
173 // mark remaining fds as free
174 for (int i = 3; i <= MAX_FD; ++i) {
175 fdo = &fd_map[i];
176 fdo->fd = -1;
177 }
178
179 mmap_start = mmap_end = 0;
180 nxm_start = nxm_end = 0;
181 // other parameters will be initialized when the program is loaded
182}
183
184
185void
186Process::regStats()
187{
188 using namespace Stats;
189
190 num_syscalls
191 .name(name() + ".num_syscalls")
192 .desc("Number of system calls")
193 ;
194}
195
196//
197// static helper functions
198//
199int
200Process::openInputFile(const string &filename)
201{
202 int fd = open(filename.c_str(), O_RDONLY);
203
204 if (fd == -1) {
205 perror(NULL);
206 cerr << "unable to open \"" << filename << "\" for reading\n";
207 fatal("can't open input file");
208 }
209
210 return fd;
211}
212
213
214int
215Process::openOutputFile(const string &filename)
216{
217 int fd = open(filename.c_str(), O_WRONLY | O_CREAT | O_TRUNC, 0664);
218
219 if (fd == -1) {
220 perror(NULL);
221 cerr << "unable to open \"" << filename << "\" for writing\n";
222 fatal("can't open output file");
223 }
224
225 return fd;
226}
227
228ThreadContext *
229Process::findFreeContext()
230{
231 int size = contextIds.size();
232 ThreadContext *tc;
233 for (int i = 0; i < size; ++i) {
234 tc = system->getThreadContext(contextIds[i]);
235 if (tc->status() == ThreadContext::Halted) {
236 // inactive context, free to use
237 return tc;
238 }
239 }
240 return NULL;
241}
242
243void
244Process::initState()
245{
246 if (contextIds.empty())
247 fatal("Process %s is not associated with any HW contexts!\n", name());
248
249 // first thread context for this process... initialize & enable
250 ThreadContext *tc = system->getThreadContext(contextIds[0]);
251
252 // mark this context as active so it will start ticking.
| 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 max_stack_size(params->max_stack_size),
108 M5_pid(system->allocatePID()),
109 useArchPT(params->useArchPT),
110 pTable(useArchPT ?
111 static_cast<PageTableBase *>(new ArchPageTable(name(), M5_pid, system)) :
112 static_cast<PageTableBase *>(new FuncPageTable(name(), M5_pid)) ),
113 initVirtMem(system->getSystemPort(), this,
114 SETranslatingPortProxy::Always)
115{
116 string in = params->input;
117 string out = params->output;
118 string err = params->errout;
119
120 // initialize file descriptors to default: same as simulator
121 int stdin_fd, stdout_fd, stderr_fd;
122
123 if (in == "stdin" || in == "cin")
124 stdin_fd = STDIN_FILENO;
125 else if (in == "None")
126 stdin_fd = -1;
127 else
128 stdin_fd = Process::openInputFile(in);
129
130 if (out == "stdout" || out == "cout")
131 stdout_fd = STDOUT_FILENO;
132 else if (out == "stderr" || out == "cerr")
133 stdout_fd = STDERR_FILENO;
134 else if (out == "None")
135 stdout_fd = -1;
136 else
137 stdout_fd = Process::openOutputFile(out);
138
139 if (err == "stdout" || err == "cout")
140 stderr_fd = STDOUT_FILENO;
141 else if (err == "stderr" || err == "cerr")
142 stderr_fd = STDERR_FILENO;
143 else if (err == "None")
144 stderr_fd = -1;
145 else if (err == out)
146 stderr_fd = stdout_fd;
147 else
148 stderr_fd = Process::openOutputFile(err);
149
150 // initialize first 3 fds (stdin, stdout, stderr)
151 Process::FdMap *fdo = &fd_map[STDIN_FILENO];
152 fdo->fd = stdin_fd;
153 fdo->filename = in;
154 fdo->flags = O_RDONLY;
155 fdo->mode = -1;
156 fdo->fileOffset = 0;
157
158 fdo = &fd_map[STDOUT_FILENO];
159 fdo->fd = stdout_fd;
160 fdo->filename = out;
161 fdo->flags = O_WRONLY | O_CREAT | O_TRUNC;
162 fdo->mode = 0774;
163 fdo->fileOffset = 0;
164
165 fdo = &fd_map[STDERR_FILENO];
166 fdo->fd = stderr_fd;
167 fdo->filename = err;
168 fdo->flags = O_WRONLY;
169 fdo->mode = -1;
170 fdo->fileOffset = 0;
171
172
173 // mark remaining fds as free
174 for (int i = 3; i <= MAX_FD; ++i) {
175 fdo = &fd_map[i];
176 fdo->fd = -1;
177 }
178
179 mmap_start = mmap_end = 0;
180 nxm_start = nxm_end = 0;
181 // other parameters will be initialized when the program is loaded
182}
183
184
185void
186Process::regStats()
187{
188 using namespace Stats;
189
190 num_syscalls
191 .name(name() + ".num_syscalls")
192 .desc("Number of system calls")
193 ;
194}
195
196//
197// static helper functions
198//
199int
200Process::openInputFile(const string &filename)
201{
202 int fd = open(filename.c_str(), O_RDONLY);
203
204 if (fd == -1) {
205 perror(NULL);
206 cerr << "unable to open \"" << filename << "\" for reading\n";
207 fatal("can't open input file");
208 }
209
210 return fd;
211}
212
213
214int
215Process::openOutputFile(const string &filename)
216{
217 int fd = open(filename.c_str(), O_WRONLY | O_CREAT | O_TRUNC, 0664);
218
219 if (fd == -1) {
220 perror(NULL);
221 cerr << "unable to open \"" << filename << "\" for writing\n";
222 fatal("can't open output file");
223 }
224
225 return fd;
226}
227
228ThreadContext *
229Process::findFreeContext()
230{
231 int size = contextIds.size();
232 ThreadContext *tc;
233 for (int i = 0; i < size; ++i) {
234 tc = system->getThreadContext(contextIds[i]);
235 if (tc->status() == ThreadContext::Halted) {
236 // inactive context, free to use
237 return tc;
238 }
239 }
240 return NULL;
241}
242
243void
244Process::initState()
245{
246 if (contextIds.empty())
247 fatal("Process %s is not associated with any HW contexts!\n", name());
248
249 // first thread context for this process... initialize & enable
250 ThreadContext *tc = system->getThreadContext(contextIds[0]);
251
252 // mark this context as active so it will start ticking.
|
254
255 pTable->initState(tc);
256}
257
258// map simulator fd sim_fd to target fd tgt_fd
259void
260Process::dup_fd(int sim_fd, int tgt_fd)
261{
262 if (tgt_fd < 0 || tgt_fd > MAX_FD)
263 panic("Process::dup_fd tried to dup past MAX_FD (%d)", tgt_fd);
264
265 Process::FdMap *fdo = &fd_map[tgt_fd];
266 fdo->fd = sim_fd;
267}
268
269
270// generate new target fd for sim_fd
271int
272Process::alloc_fd(int sim_fd, string filename, int flags, int mode, bool pipe)
273{
274 // in case open() returns an error, don't allocate a new fd
275 if (sim_fd == -1)
276 return -1;
277
278 // find first free target fd
279 for (int free_fd = 0; free_fd <= MAX_FD; ++free_fd) {
280 Process::FdMap *fdo = &fd_map[free_fd];
281 if (fdo->fd == -1) {
282 fdo->fd = sim_fd;
283 fdo->filename = filename;
284 fdo->mode = mode;
285 fdo->fileOffset = 0;
286 fdo->flags = flags;
287 fdo->isPipe = pipe;
288 fdo->readPipeSource = 0;
289 return free_fd;
290 }
291 }
292
293 panic("Process::alloc_fd: out of file descriptors!");
294}
295
296
297// free target fd (e.g., after close)
298void
299Process::free_fd(int tgt_fd)
300{
301 Process::FdMap *fdo = &fd_map[tgt_fd];
302 if (fdo->fd == -1)
303 warn("Process::free_fd: request to free unused fd %d", tgt_fd);
304
305 fdo->fd = -1;
306 fdo->filename = "NULL";
307 fdo->mode = 0;
308 fdo->fileOffset = 0;
309 fdo->flags = 0;
310 fdo->isPipe = false;
311 fdo->readPipeSource = 0;
312}
313
314
315// look up simulator fd for given target fd
316int
317Process::sim_fd(int tgt_fd)
318{
319 if (tgt_fd < 0 || tgt_fd > MAX_FD)
320 return -1;
321
322 return fd_map[tgt_fd].fd;
323}
324
325Process::FdMap *
326Process::sim_fd_obj(int tgt_fd)
327{
328 if (tgt_fd < 0 || tgt_fd > MAX_FD)
329 return NULL;
330
331 return &fd_map[tgt_fd];
332}
333
334void
335Process::allocateMem(Addr vaddr, int64_t size, bool clobber)
336{
337 int npages = divCeil(size, (int64_t)PageBytes);
338 Addr paddr = system->allocPhysPages(npages);
339 pTable->map(vaddr, paddr, size, clobber);
340}
341
342bool
343Process::fixupStackFault(Addr vaddr)
344{
345 // Check if this is already on the stack and there's just no page there
346 // yet.
347 if (vaddr >= stack_min && vaddr < stack_base) {
348 allocateMem(roundDown(vaddr, PageBytes), PageBytes);
349 return true;
350 }
351
352 // We've accessed the next page of the stack, so extend it to include
353 // this address.
354 if (vaddr < stack_min && vaddr >= stack_base - max_stack_size) {
355 while (vaddr < stack_min) {
356 stack_min -= TheISA::PageBytes;
357 if (stack_base - stack_min > max_stack_size)
358 fatal("Maximum stack size exceeded\n");
359 allocateMem(stack_min, TheISA::PageBytes);
360 inform("Increasing stack size by one page.");
361 };
362 return true;
363 }
364 return false;
365}
366
367// find all offsets for currently open files and save them
368void
369Process::fix_file_offsets()
370{
371 Process::FdMap *fdo_stdin = &fd_map[STDIN_FILENO];
372 Process::FdMap *fdo_stdout = &fd_map[STDOUT_FILENO];
373 Process::FdMap *fdo_stderr = &fd_map[STDERR_FILENO];
374 string in = fdo_stdin->filename;
375 string out = fdo_stdout->filename;
376 string err = fdo_stderr->filename;
377
378 // initialize file descriptors to default: same as simulator
379 int stdin_fd, stdout_fd, stderr_fd;
380
381 if (in == "stdin" || in == "cin")
382 stdin_fd = STDIN_FILENO;
383 else if (in == "None")
384 stdin_fd = -1;
385 else {
386 // open standard in and seek to the right location
387 stdin_fd = Process::openInputFile(in);
388 if (lseek(stdin_fd, fdo_stdin->fileOffset, SEEK_SET) < 0)
389 panic("Unable to seek to correct location in file: %s", in);
390 }
391
392 if (out == "stdout" || out == "cout")
393 stdout_fd = STDOUT_FILENO;
394 else if (out == "stderr" || out == "cerr")
395 stdout_fd = STDERR_FILENO;
396 else if (out == "None")
397 stdout_fd = -1;
398 else {
399 stdout_fd = Process::openOutputFile(out);
400 if (lseek(stdout_fd, fdo_stdout->fileOffset, SEEK_SET) < 0)
401 panic("Unable to seek to correct location in file: %s", out);
402 }
403
404 if (err == "stdout" || err == "cout")
405 stderr_fd = STDOUT_FILENO;
406 else if (err == "stderr" || err == "cerr")
407 stderr_fd = STDERR_FILENO;
408 else if (err == "None")
409 stderr_fd = -1;
410 else if (err == out)
411 stderr_fd = stdout_fd;
412 else {
413 stderr_fd = Process::openOutputFile(err);
414 if (lseek(stderr_fd, fdo_stderr->fileOffset, SEEK_SET) < 0)
415 panic("Unable to seek to correct location in file: %s", err);
416 }
417
418 fdo_stdin->fd = stdin_fd;
419 fdo_stdout->fd = stdout_fd;
420 fdo_stderr->fd = stderr_fd;
421
422
423 for (int free_fd = 3; free_fd <= MAX_FD; ++free_fd) {
424 Process::FdMap *fdo = &fd_map[free_fd];
425 if (fdo->fd != -1) {
426 if (fdo->isPipe){
427 if (fdo->filename == "PIPE-WRITE")
428 continue;
429 else {
430 assert (fdo->filename == "PIPE-READ");
431 //create a new pipe
432 int fds[2];
433 int pipe_retval = pipe(fds);
434
435 if (pipe_retval < 0) {
436 // error
437 panic("Unable to create new pipe.");
438 }
439 fdo->fd = fds[0]; //set read pipe
440 Process::FdMap *fdo_write = &fd_map[fdo->readPipeSource];
441 if (fdo_write->filename != "PIPE-WRITE")
442 panic ("Couldn't find write end of the pipe");
443
444 fdo_write->fd = fds[1];//set write pipe
445 }
446 } else {
447 //Open file
448 int fd = open(fdo->filename.c_str(), fdo->flags, fdo->mode);
449
450 if (fd == -1)
451 panic("Unable to open file: %s", fdo->filename);
452 fdo->fd = fd;
453
454 //Seek to correct location before checkpoint
455 if (lseek(fd,fdo->fileOffset, SEEK_SET) < 0)
456 panic("Unable to seek to correct location in file: %s",
457 fdo->filename);
458 }
459 }
460 }
461}
462
463void
464Process::find_file_offsets()
465{
466 for (int free_fd = 0; free_fd <= MAX_FD; ++free_fd) {
467 Process::FdMap *fdo = &fd_map[free_fd];
468 if (fdo->fd != -1) {
469 fdo->fileOffset = lseek(fdo->fd, 0, SEEK_CUR);
470 } else {
471 fdo->filename = "NULL";
472 fdo->fileOffset = 0;
473 }
474 }
475}
476
477void
478Process::setReadPipeSource(int read_pipe_fd, int source_fd)
479{
480 Process::FdMap *fdo = &fd_map[read_pipe_fd];
481 fdo->readPipeSource = source_fd;
482}
483
484void
485Process::FdMap::serialize(std::ostream &os)
486{
487 SERIALIZE_SCALAR(fd);
488 SERIALIZE_SCALAR(isPipe);
489 SERIALIZE_SCALAR(filename);
490 SERIALIZE_SCALAR(flags);
491 SERIALIZE_SCALAR(readPipeSource);
492 SERIALIZE_SCALAR(fileOffset);
493}
494
495void
496Process::FdMap::unserialize(Checkpoint *cp, const std::string §ion)
497{
498 UNSERIALIZE_SCALAR(fd);
499 UNSERIALIZE_SCALAR(isPipe);
500 UNSERIALIZE_SCALAR(filename);
501 UNSERIALIZE_SCALAR(flags);
502 UNSERIALIZE_SCALAR(readPipeSource);
503 UNSERIALIZE_SCALAR(fileOffset);
504}
505
506void
507Process::serialize(std::ostream &os)
508{
509 SERIALIZE_SCALAR(brk_point);
510 SERIALIZE_SCALAR(stack_base);
511 SERIALIZE_SCALAR(stack_size);
512 SERIALIZE_SCALAR(stack_min);
513 SERIALIZE_SCALAR(next_thread_stack_base);
514 SERIALIZE_SCALAR(mmap_start);
515 SERIALIZE_SCALAR(mmap_end);
516 SERIALIZE_SCALAR(nxm_start);
517 SERIALIZE_SCALAR(nxm_end);
518 find_file_offsets();
519 pTable->serialize(os);
520 for (int x = 0; x <= MAX_FD; x++) {
521 nameOut(os, csprintf("%s.FdMap%d", name(), x));
522 fd_map[x].serialize(os);
523 }
524 SERIALIZE_SCALAR(M5_pid);
525
526}
527
528void
529Process::unserialize(Checkpoint *cp, const std::string §ion)
530{
531 UNSERIALIZE_SCALAR(brk_point);
532 UNSERIALIZE_SCALAR(stack_base);
533 UNSERIALIZE_SCALAR(stack_size);
534 UNSERIALIZE_SCALAR(stack_min);
535 UNSERIALIZE_SCALAR(next_thread_stack_base);
536 UNSERIALIZE_SCALAR(mmap_start);
537 UNSERIALIZE_SCALAR(mmap_end);
538 UNSERIALIZE_SCALAR(nxm_start);
539 UNSERIALIZE_SCALAR(nxm_end);
540 pTable->unserialize(cp, section);
541 for (int x = 0; x <= MAX_FD; x++) {
542 fd_map[x].unserialize(cp, csprintf("%s.FdMap%d", section, x));
543 }
544 fix_file_offsets();
545 UNSERIALIZE_OPT_SCALAR(M5_pid);
546 // The above returns a bool so that you could do something if you don't
547 // find the param in the checkpoint if you wanted to, like set a default
548 // but in this case we'll just stick with the instantianted value if not
549 // found.
550}
551
552
553bool
554Process::map(Addr vaddr, Addr paddr, int size)
555{
556 pTable->map(vaddr, paddr, size);
557 return true;
558}
559
560
561////////////////////////////////////////////////////////////////////////
562//
563// LiveProcess member definitions
564//
565////////////////////////////////////////////////////////////////////////
566
567
568LiveProcess::LiveProcess(LiveProcessParams * params, ObjectFile *_objFile)
569 : Process(params), objFile(_objFile),
570 argv(params->cmd), envp(params->env), cwd(params->cwd)
571{
572 __uid = params->uid;
573 __euid = params->euid;
574 __gid = params->gid;
575 __egid = params->egid;
576 __pid = params->pid;
577 __ppid = params->ppid;
578
579 // load up symbols, if any... these may be used for debugging or
580 // profiling.
581 if (!debugSymbolTable) {
582 debugSymbolTable = new SymbolTable();
583 if (!objFile->loadGlobalSymbols(debugSymbolTable) ||
584 !objFile->loadLocalSymbols(debugSymbolTable) ||
585 !objFile->loadWeakSymbols(debugSymbolTable)) {
586 // didn't load any symbols
587 delete debugSymbolTable;
588 debugSymbolTable = NULL;
589 }
590 }
591}
592
593void
594LiveProcess::syscall(int64_t callnum, ThreadContext *tc)
595{
596 num_syscalls++;
597
598 SyscallDesc *desc = getDesc(callnum);
599 if (desc == NULL)
600 fatal("Syscall %d out of range", callnum);
601
602 desc->doSyscall(callnum, this, tc);
603}
604
605IntReg
606LiveProcess::getSyscallArg(ThreadContext *tc, int &i, int width)
607{
608 return getSyscallArg(tc, i);
609}
610
611LiveProcess *
612LiveProcess::create(LiveProcessParams * params)
613{
614 LiveProcess *process = NULL;
615
616 string executable =
617 params->executable == "" ? params->cmd[0] : params->executable;
618 ObjectFile *objFile = createObjectFile(executable);
619 if (objFile == NULL) {
620 fatal("Can't load object file %s", executable);
621 }
622
623 if (objFile->isDynamic())
624 fatal("Object file is a dynamic executable however only static "
625 "executables are supported!\n Please recompile your "
626 "executable as a static binary and try again.\n");
627
628#if THE_ISA == ALPHA_ISA
629 if (objFile->getArch() != ObjectFile::Alpha)
630 fatal("Object file architecture does not match compiled ISA (Alpha).");
631
632 switch (objFile->getOpSys()) {
633 case ObjectFile::Tru64:
634 process = new AlphaTru64Process(params, objFile);
635 break;
636
637 case ObjectFile::UnknownOpSys:
638 warn("Unknown operating system; assuming Linux.");
639 // fall through
640 case ObjectFile::Linux:
641 process = new AlphaLinuxProcess(params, objFile);
642 break;
643
644 default:
645 fatal("Unknown/unsupported operating system.");
646 }
647#elif THE_ISA == SPARC_ISA
648 if (objFile->getArch() != ObjectFile::SPARC64 &&
649 objFile->getArch() != ObjectFile::SPARC32)
650 fatal("Object file architecture does not match compiled ISA (SPARC).");
651 switch (objFile->getOpSys()) {
652 case ObjectFile::UnknownOpSys:
653 warn("Unknown operating system; assuming Linux.");
654 // fall through
655 case ObjectFile::Linux:
656 if (objFile->getArch() == ObjectFile::SPARC64) {
657 process = new Sparc64LinuxProcess(params, objFile);
658 } else {
659 process = new Sparc32LinuxProcess(params, objFile);
660 }
661 break;
662
663
664 case ObjectFile::Solaris:
665 process = new SparcSolarisProcess(params, objFile);
666 break;
667
668 default:
669 fatal("Unknown/unsupported operating system.");
670 }
671#elif THE_ISA == X86_ISA
672 if (objFile->getArch() != ObjectFile::X86_64 &&
673 objFile->getArch() != ObjectFile::I386)
674 fatal("Object file architecture does not match compiled ISA (x86).");
675 switch (objFile->getOpSys()) {
676 case ObjectFile::UnknownOpSys:
677 warn("Unknown operating system; assuming Linux.");
678 // fall through
679 case ObjectFile::Linux:
680 if (objFile->getArch() == ObjectFile::X86_64) {
681 process = new X86_64LinuxProcess(params, objFile);
682 } else {
683 process = new I386LinuxProcess(params, objFile);
684 }
685 break;
686
687 default:
688 fatal("Unknown/unsupported operating system.");
689 }
690#elif THE_ISA == MIPS_ISA
691 if (objFile->getArch() != ObjectFile::Mips)
692 fatal("Object file architecture does not match compiled ISA (MIPS).");
693 switch (objFile->getOpSys()) {
694 case ObjectFile::UnknownOpSys:
695 warn("Unknown operating system; assuming Linux.");
696 // fall through
697 case ObjectFile::Linux:
698 process = new MipsLinuxProcess(params, objFile);
699 break;
700
701 default:
702 fatal("Unknown/unsupported operating system.");
703 }
704#elif THE_ISA == ARM_ISA
705 ObjectFile::Arch arch = objFile->getArch();
706 if (arch != ObjectFile::Arm && arch != ObjectFile::Thumb &&
707 arch != ObjectFile::Arm64)
708 fatal("Object file architecture does not match compiled ISA (ARM).");
709 switch (objFile->getOpSys()) {
710 case ObjectFile::UnknownOpSys:
711 warn("Unknown operating system; assuming Linux.");
712 // fall through
713 case ObjectFile::Linux:
714 if (arch == ObjectFile::Arm64) {
715 process = new ArmLinuxProcess64(params, objFile,
716 objFile->getArch());
717 } else {
718 process = new ArmLinuxProcess32(params, objFile,
719 objFile->getArch());
720 }
721 break;
722 case ObjectFile::LinuxArmOABI:
723 fatal("M5 does not support ARM OABI binaries. Please recompile with an"
724 " EABI compiler.");
725 default:
726 fatal("Unknown/unsupported operating system.");
727 }
728#elif THE_ISA == POWER_ISA
729 if (objFile->getArch() != ObjectFile::Power)
730 fatal("Object file architecture does not match compiled ISA (Power).");
731 switch (objFile->getOpSys()) {
732 case ObjectFile::UnknownOpSys:
733 warn("Unknown operating system; assuming Linux.");
734 // fall through
735 case ObjectFile::Linux:
736 process = new PowerLinuxProcess(params, objFile);
737 break;
738
739 default:
740 fatal("Unknown/unsupported operating system.");
741 }
742#else
743#error "THE_ISA not set"
744#endif
745
746 if (process == NULL)
747 fatal("Unknown error creating process object.");
748 return process;
749}
750
751LiveProcess *
752LiveProcessParams::create()
753{
754 return LiveProcess::create(this);
755}
| 254
255 pTable->initState(tc);
256}
257
258// map simulator fd sim_fd to target fd tgt_fd
259void
260Process::dup_fd(int sim_fd, int tgt_fd)
261{
262 if (tgt_fd < 0 || tgt_fd > MAX_FD)
263 panic("Process::dup_fd tried to dup past MAX_FD (%d)", tgt_fd);
264
265 Process::FdMap *fdo = &fd_map[tgt_fd];
266 fdo->fd = sim_fd;
267}
268
269
270// generate new target fd for sim_fd
271int
272Process::alloc_fd(int sim_fd, string filename, int flags, int mode, bool pipe)
273{
274 // in case open() returns an error, don't allocate a new fd
275 if (sim_fd == -1)
276 return -1;
277
278 // find first free target fd
279 for (int free_fd = 0; free_fd <= MAX_FD; ++free_fd) {
280 Process::FdMap *fdo = &fd_map[free_fd];
281 if (fdo->fd == -1) {
282 fdo->fd = sim_fd;
283 fdo->filename = filename;
284 fdo->mode = mode;
285 fdo->fileOffset = 0;
286 fdo->flags = flags;
287 fdo->isPipe = pipe;
288 fdo->readPipeSource = 0;
289 return free_fd;
290 }
291 }
292
293 panic("Process::alloc_fd: out of file descriptors!");
294}
295
296
297// free target fd (e.g., after close)
298void
299Process::free_fd(int tgt_fd)
300{
301 Process::FdMap *fdo = &fd_map[tgt_fd];
302 if (fdo->fd == -1)
303 warn("Process::free_fd: request to free unused fd %d", tgt_fd);
304
305 fdo->fd = -1;
306 fdo->filename = "NULL";
307 fdo->mode = 0;
308 fdo->fileOffset = 0;
309 fdo->flags = 0;
310 fdo->isPipe = false;
311 fdo->readPipeSource = 0;
312}
313
314
315// look up simulator fd for given target fd
316int
317Process::sim_fd(int tgt_fd)
318{
319 if (tgt_fd < 0 || tgt_fd > MAX_FD)
320 return -1;
321
322 return fd_map[tgt_fd].fd;
323}
324
325Process::FdMap *
326Process::sim_fd_obj(int tgt_fd)
327{
328 if (tgt_fd < 0 || tgt_fd > MAX_FD)
329 return NULL;
330
331 return &fd_map[tgt_fd];
332}
333
334void
335Process::allocateMem(Addr vaddr, int64_t size, bool clobber)
336{
337 int npages = divCeil(size, (int64_t)PageBytes);
338 Addr paddr = system->allocPhysPages(npages);
339 pTable->map(vaddr, paddr, size, clobber);
340}
341
342bool
343Process::fixupStackFault(Addr vaddr)
344{
345 // Check if this is already on the stack and there's just no page there
346 // yet.
347 if (vaddr >= stack_min && vaddr < stack_base) {
348 allocateMem(roundDown(vaddr, PageBytes), PageBytes);
349 return true;
350 }
351
352 // We've accessed the next page of the stack, so extend it to include
353 // this address.
354 if (vaddr < stack_min && vaddr >= stack_base - max_stack_size) {
355 while (vaddr < stack_min) {
356 stack_min -= TheISA::PageBytes;
357 if (stack_base - stack_min > max_stack_size)
358 fatal("Maximum stack size exceeded\n");
359 allocateMem(stack_min, TheISA::PageBytes);
360 inform("Increasing stack size by one page.");
361 };
362 return true;
363 }
364 return false;
365}
366
367// find all offsets for currently open files and save them
368void
369Process::fix_file_offsets()
370{
371 Process::FdMap *fdo_stdin = &fd_map[STDIN_FILENO];
372 Process::FdMap *fdo_stdout = &fd_map[STDOUT_FILENO];
373 Process::FdMap *fdo_stderr = &fd_map[STDERR_FILENO];
374 string in = fdo_stdin->filename;
375 string out = fdo_stdout->filename;
376 string err = fdo_stderr->filename;
377
378 // initialize file descriptors to default: same as simulator
379 int stdin_fd, stdout_fd, stderr_fd;
380
381 if (in == "stdin" || in == "cin")
382 stdin_fd = STDIN_FILENO;
383 else if (in == "None")
384 stdin_fd = -1;
385 else {
386 // open standard in and seek to the right location
387 stdin_fd = Process::openInputFile(in);
388 if (lseek(stdin_fd, fdo_stdin->fileOffset, SEEK_SET) < 0)
389 panic("Unable to seek to correct location in file: %s", in);
390 }
391
392 if (out == "stdout" || out == "cout")
393 stdout_fd = STDOUT_FILENO;
394 else if (out == "stderr" || out == "cerr")
395 stdout_fd = STDERR_FILENO;
396 else if (out == "None")
397 stdout_fd = -1;
398 else {
399 stdout_fd = Process::openOutputFile(out);
400 if (lseek(stdout_fd, fdo_stdout->fileOffset, SEEK_SET) < 0)
401 panic("Unable to seek to correct location in file: %s", out);
402 }
403
404 if (err == "stdout" || err == "cout")
405 stderr_fd = STDOUT_FILENO;
406 else if (err == "stderr" || err == "cerr")
407 stderr_fd = STDERR_FILENO;
408 else if (err == "None")
409 stderr_fd = -1;
410 else if (err == out)
411 stderr_fd = stdout_fd;
412 else {
413 stderr_fd = Process::openOutputFile(err);
414 if (lseek(stderr_fd, fdo_stderr->fileOffset, SEEK_SET) < 0)
415 panic("Unable to seek to correct location in file: %s", err);
416 }
417
418 fdo_stdin->fd = stdin_fd;
419 fdo_stdout->fd = stdout_fd;
420 fdo_stderr->fd = stderr_fd;
421
422
423 for (int free_fd = 3; free_fd <= MAX_FD; ++free_fd) {
424 Process::FdMap *fdo = &fd_map[free_fd];
425 if (fdo->fd != -1) {
426 if (fdo->isPipe){
427 if (fdo->filename == "PIPE-WRITE")
428 continue;
429 else {
430 assert (fdo->filename == "PIPE-READ");
431 //create a new pipe
432 int fds[2];
433 int pipe_retval = pipe(fds);
434
435 if (pipe_retval < 0) {
436 // error
437 panic("Unable to create new pipe.");
438 }
439 fdo->fd = fds[0]; //set read pipe
440 Process::FdMap *fdo_write = &fd_map[fdo->readPipeSource];
441 if (fdo_write->filename != "PIPE-WRITE")
442 panic ("Couldn't find write end of the pipe");
443
444 fdo_write->fd = fds[1];//set write pipe
445 }
446 } else {
447 //Open file
448 int fd = open(fdo->filename.c_str(), fdo->flags, fdo->mode);
449
450 if (fd == -1)
451 panic("Unable to open file: %s", fdo->filename);
452 fdo->fd = fd;
453
454 //Seek to correct location before checkpoint
455 if (lseek(fd,fdo->fileOffset, SEEK_SET) < 0)
456 panic("Unable to seek to correct location in file: %s",
457 fdo->filename);
458 }
459 }
460 }
461}
462
463void
464Process::find_file_offsets()
465{
466 for (int free_fd = 0; free_fd <= MAX_FD; ++free_fd) {
467 Process::FdMap *fdo = &fd_map[free_fd];
468 if (fdo->fd != -1) {
469 fdo->fileOffset = lseek(fdo->fd, 0, SEEK_CUR);
470 } else {
471 fdo->filename = "NULL";
472 fdo->fileOffset = 0;
473 }
474 }
475}
476
477void
478Process::setReadPipeSource(int read_pipe_fd, int source_fd)
479{
480 Process::FdMap *fdo = &fd_map[read_pipe_fd];
481 fdo->readPipeSource = source_fd;
482}
483
484void
485Process::FdMap::serialize(std::ostream &os)
486{
487 SERIALIZE_SCALAR(fd);
488 SERIALIZE_SCALAR(isPipe);
489 SERIALIZE_SCALAR(filename);
490 SERIALIZE_SCALAR(flags);
491 SERIALIZE_SCALAR(readPipeSource);
492 SERIALIZE_SCALAR(fileOffset);
493}
494
495void
496Process::FdMap::unserialize(Checkpoint *cp, const std::string §ion)
497{
498 UNSERIALIZE_SCALAR(fd);
499 UNSERIALIZE_SCALAR(isPipe);
500 UNSERIALIZE_SCALAR(filename);
501 UNSERIALIZE_SCALAR(flags);
502 UNSERIALIZE_SCALAR(readPipeSource);
503 UNSERIALIZE_SCALAR(fileOffset);
504}
505
506void
507Process::serialize(std::ostream &os)
508{
509 SERIALIZE_SCALAR(brk_point);
510 SERIALIZE_SCALAR(stack_base);
511 SERIALIZE_SCALAR(stack_size);
512 SERIALIZE_SCALAR(stack_min);
513 SERIALIZE_SCALAR(next_thread_stack_base);
514 SERIALIZE_SCALAR(mmap_start);
515 SERIALIZE_SCALAR(mmap_end);
516 SERIALIZE_SCALAR(nxm_start);
517 SERIALIZE_SCALAR(nxm_end);
518 find_file_offsets();
519 pTable->serialize(os);
520 for (int x = 0; x <= MAX_FD; x++) {
521 nameOut(os, csprintf("%s.FdMap%d", name(), x));
522 fd_map[x].serialize(os);
523 }
524 SERIALIZE_SCALAR(M5_pid);
525
526}
527
528void
529Process::unserialize(Checkpoint *cp, const std::string §ion)
530{
531 UNSERIALIZE_SCALAR(brk_point);
532 UNSERIALIZE_SCALAR(stack_base);
533 UNSERIALIZE_SCALAR(stack_size);
534 UNSERIALIZE_SCALAR(stack_min);
535 UNSERIALIZE_SCALAR(next_thread_stack_base);
536 UNSERIALIZE_SCALAR(mmap_start);
537 UNSERIALIZE_SCALAR(mmap_end);
538 UNSERIALIZE_SCALAR(nxm_start);
539 UNSERIALIZE_SCALAR(nxm_end);
540 pTable->unserialize(cp, section);
541 for (int x = 0; x <= MAX_FD; x++) {
542 fd_map[x].unserialize(cp, csprintf("%s.FdMap%d", section, x));
543 }
544 fix_file_offsets();
545 UNSERIALIZE_OPT_SCALAR(M5_pid);
546 // The above returns a bool so that you could do something if you don't
547 // find the param in the checkpoint if you wanted to, like set a default
548 // but in this case we'll just stick with the instantianted value if not
549 // found.
550}
551
552
553bool
554Process::map(Addr vaddr, Addr paddr, int size)
555{
556 pTable->map(vaddr, paddr, size);
557 return true;
558}
559
560
561////////////////////////////////////////////////////////////////////////
562//
563// LiveProcess member definitions
564//
565////////////////////////////////////////////////////////////////////////
566
567
568LiveProcess::LiveProcess(LiveProcessParams * params, ObjectFile *_objFile)
569 : Process(params), objFile(_objFile),
570 argv(params->cmd), envp(params->env), cwd(params->cwd)
571{
572 __uid = params->uid;
573 __euid = params->euid;
574 __gid = params->gid;
575 __egid = params->egid;
576 __pid = params->pid;
577 __ppid = params->ppid;
578
579 // load up symbols, if any... these may be used for debugging or
580 // profiling.
581 if (!debugSymbolTable) {
582 debugSymbolTable = new SymbolTable();
583 if (!objFile->loadGlobalSymbols(debugSymbolTable) ||
584 !objFile->loadLocalSymbols(debugSymbolTable) ||
585 !objFile->loadWeakSymbols(debugSymbolTable)) {
586 // didn't load any symbols
587 delete debugSymbolTable;
588 debugSymbolTable = NULL;
589 }
590 }
591}
592
593void
594LiveProcess::syscall(int64_t callnum, ThreadContext *tc)
595{
596 num_syscalls++;
597
598 SyscallDesc *desc = getDesc(callnum);
599 if (desc == NULL)
600 fatal("Syscall %d out of range", callnum);
601
602 desc->doSyscall(callnum, this, tc);
603}
604
605IntReg
606LiveProcess::getSyscallArg(ThreadContext *tc, int &i, int width)
607{
608 return getSyscallArg(tc, i);
609}
610
611LiveProcess *
612LiveProcess::create(LiveProcessParams * params)
613{
614 LiveProcess *process = NULL;
615
616 string executable =
617 params->executable == "" ? params->cmd[0] : params->executable;
618 ObjectFile *objFile = createObjectFile(executable);
619 if (objFile == NULL) {
620 fatal("Can't load object file %s", executable);
621 }
622
623 if (objFile->isDynamic())
624 fatal("Object file is a dynamic executable however only static "
625 "executables are supported!\n Please recompile your "
626 "executable as a static binary and try again.\n");
627
628#if THE_ISA == ALPHA_ISA
629 if (objFile->getArch() != ObjectFile::Alpha)
630 fatal("Object file architecture does not match compiled ISA (Alpha).");
631
632 switch (objFile->getOpSys()) {
633 case ObjectFile::Tru64:
634 process = new AlphaTru64Process(params, objFile);
635 break;
636
637 case ObjectFile::UnknownOpSys:
638 warn("Unknown operating system; assuming Linux.");
639 // fall through
640 case ObjectFile::Linux:
641 process = new AlphaLinuxProcess(params, objFile);
642 break;
643
644 default:
645 fatal("Unknown/unsupported operating system.");
646 }
647#elif THE_ISA == SPARC_ISA
648 if (objFile->getArch() != ObjectFile::SPARC64 &&
649 objFile->getArch() != ObjectFile::SPARC32)
650 fatal("Object file architecture does not match compiled ISA (SPARC).");
651 switch (objFile->getOpSys()) {
652 case ObjectFile::UnknownOpSys:
653 warn("Unknown operating system; assuming Linux.");
654 // fall through
655 case ObjectFile::Linux:
656 if (objFile->getArch() == ObjectFile::SPARC64) {
657 process = new Sparc64LinuxProcess(params, objFile);
658 } else {
659 process = new Sparc32LinuxProcess(params, objFile);
660 }
661 break;
662
663
664 case ObjectFile::Solaris:
665 process = new SparcSolarisProcess(params, objFile);
666 break;
667
668 default:
669 fatal("Unknown/unsupported operating system.");
670 }
671#elif THE_ISA == X86_ISA
672 if (objFile->getArch() != ObjectFile::X86_64 &&
673 objFile->getArch() != ObjectFile::I386)
674 fatal("Object file architecture does not match compiled ISA (x86).");
675 switch (objFile->getOpSys()) {
676 case ObjectFile::UnknownOpSys:
677 warn("Unknown operating system; assuming Linux.");
678 // fall through
679 case ObjectFile::Linux:
680 if (objFile->getArch() == ObjectFile::X86_64) {
681 process = new X86_64LinuxProcess(params, objFile);
682 } else {
683 process = new I386LinuxProcess(params, objFile);
684 }
685 break;
686
687 default:
688 fatal("Unknown/unsupported operating system.");
689 }
690#elif THE_ISA == MIPS_ISA
691 if (objFile->getArch() != ObjectFile::Mips)
692 fatal("Object file architecture does not match compiled ISA (MIPS).");
693 switch (objFile->getOpSys()) {
694 case ObjectFile::UnknownOpSys:
695 warn("Unknown operating system; assuming Linux.");
696 // fall through
697 case ObjectFile::Linux:
698 process = new MipsLinuxProcess(params, objFile);
699 break;
700
701 default:
702 fatal("Unknown/unsupported operating system.");
703 }
704#elif THE_ISA == ARM_ISA
705 ObjectFile::Arch arch = objFile->getArch();
706 if (arch != ObjectFile::Arm && arch != ObjectFile::Thumb &&
707 arch != ObjectFile::Arm64)
708 fatal("Object file architecture does not match compiled ISA (ARM).");
709 switch (objFile->getOpSys()) {
710 case ObjectFile::UnknownOpSys:
711 warn("Unknown operating system; assuming Linux.");
712 // fall through
713 case ObjectFile::Linux:
714 if (arch == ObjectFile::Arm64) {
715 process = new ArmLinuxProcess64(params, objFile,
716 objFile->getArch());
717 } else {
718 process = new ArmLinuxProcess32(params, objFile,
719 objFile->getArch());
720 }
721 break;
722 case ObjectFile::LinuxArmOABI:
723 fatal("M5 does not support ARM OABI binaries. Please recompile with an"
724 " EABI compiler.");
725 default:
726 fatal("Unknown/unsupported operating system.");
727 }
728#elif THE_ISA == POWER_ISA
729 if (objFile->getArch() != ObjectFile::Power)
730 fatal("Object file architecture does not match compiled ISA (Power).");
731 switch (objFile->getOpSys()) {
732 case ObjectFile::UnknownOpSys:
733 warn("Unknown operating system; assuming Linux.");
734 // fall through
735 case ObjectFile::Linux:
736 process = new PowerLinuxProcess(params, objFile);
737 break;
738
739 default:
740 fatal("Unknown/unsupported operating system.");
741 }
742#else
743#error "THE_ISA not set"
744#endif
745
746 if (process == NULL)
747 fatal("Unknown error creating process object.");
748 return process;
749}
750
751LiveProcess *
752LiveProcessParams::create()
753{
754 return LiveProcess::create(this);
755}
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