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#include "arch/arm/freebsd/process.hh"
81#elif THE_ISA == X86_ISA
82#include "arch/x86/linux/process.hh"
83#elif THE_ISA == POWER_ISA
84#include "arch/power/linux/process.hh"
85#else
86#error "THE_ISA not set"
87#endif
88
89
90using namespace std;
91using namespace TheISA;
92
93// current number of allocated processes
94int num_processes = 0;
95
96template<class IntType>
97AuxVector<IntType>::AuxVector(IntType type, IntType val)
98{
99 a_type = TheISA::htog(type);
100 a_val = TheISA::htog(val);
101}
102
103template struct AuxVector<uint32_t>;
104template struct AuxVector<uint64_t>;
105
106Process::Process(ProcessParams * params)
107 : SimObject(params), system(params->system),
108 brk_point(0), stack_base(0), stack_size(0), stack_min(0),
109 max_stack_size(params->max_stack_size),
110 next_thread_stack_base(0),
111 M5_pid(system->allocatePID()),
112 useArchPT(params->useArchPT),
113 kvmInSE(params->kvmInSE),
114 pTable(useArchPT ?
115 static_cast<PageTableBase *>(new ArchPageTable(name(), M5_pid, system)) :
116 static_cast<PageTableBase *>(new FuncPageTable(name(), M5_pid)) ),
117 initVirtMem(system->getSystemPort(), this,
118 SETranslatingPortProxy::Always)
119{
120 string in = params->input;
121 string out = params->output;
122 string err = params->errout;
123
124 // initialize file descriptors to default: same as simulator
125 int stdin_fd, stdout_fd, stderr_fd;
126
127 if (in == "stdin" || in == "cin")
128 stdin_fd = STDIN_FILENO;
129 else if (in == "None")
130 stdin_fd = -1;
131 else
132 stdin_fd = Process::openInputFile(in);
133
134 if (out == "stdout" || out == "cout")
135 stdout_fd = STDOUT_FILENO;
136 else if (out == "stderr" || out == "cerr")
137 stdout_fd = STDERR_FILENO;
138 else if (out == "None")
139 stdout_fd = -1;
140 else
141 stdout_fd = Process::openOutputFile(out);
142
143 if (err == "stdout" || err == "cout")
144 stderr_fd = STDOUT_FILENO;
145 else if (err == "stderr" || err == "cerr")
146 stderr_fd = STDERR_FILENO;
147 else if (err == "None")
148 stderr_fd = -1;
149 else if (err == out)
150 stderr_fd = stdout_fd;
151 else
152 stderr_fd = Process::openOutputFile(err);
153
154 // initialize first 3 fds (stdin, stdout, stderr)
155 Process::FdMap *fdo = &fd_map[STDIN_FILENO];
156 fdo->fd = stdin_fd;
157 fdo->filename = in;
158 fdo->flags = O_RDONLY;
159 fdo->mode = -1;
160 fdo->fileOffset = 0;
161
162 fdo = &fd_map[STDOUT_FILENO];
163 fdo->fd = stdout_fd;
164 fdo->filename = out;
165 fdo->flags = O_WRONLY | O_CREAT | O_TRUNC;
166 fdo->mode = 0774;
167 fdo->fileOffset = 0;
168
169 fdo = &fd_map[STDERR_FILENO];
170 fdo->fd = stderr_fd;
171 fdo->filename = err;
172 fdo->flags = O_WRONLY;
173 fdo->mode = -1;
174 fdo->fileOffset = 0;
175
176
177 // mark remaining fds as free
178 for (int i = 3; i <= MAX_FD; ++i) {
179 fdo = &fd_map[i];
180 fdo->fd = -1;
181 }
182
183 mmap_start = mmap_end = 0;
184 nxm_start = nxm_end = 0;
185 // other parameters will be initialized when the program is loaded
186}
187
188
189void
190Process::regStats()
191{
192 using namespace Stats;
193
194 num_syscalls
195 .name(name() + ".num_syscalls")
196 .desc("Number of system calls")
197 ;
198}
199
200//
201// static helper functions
202//
203int
204Process::openInputFile(const string &filename)
205{
206 int fd = open(filename.c_str(), O_RDONLY);
207
208 if (fd == -1) {
209 perror(NULL);
210 cerr << "unable to open \"" << filename << "\" for reading\n";
211 fatal("can't open input file");
212 }
213
214 return fd;
215}
216
217
218int
219Process::openOutputFile(const string &filename)
220{
221 int fd = open(filename.c_str(), O_WRONLY | O_CREAT | O_TRUNC, 0664);
222
223 if (fd == -1) {
224 perror(NULL);
225 cerr << "unable to open \"" << filename << "\" for writing\n";
226 fatal("can't open output file");
227 }
228
229 return fd;
230}
231
232ThreadContext *
233Process::findFreeContext()
234{
235 int size = contextIds.size();
236 ThreadContext *tc;
237 for (int i = 0; i < size; ++i) {
238 tc = system->getThreadContext(contextIds[i]);
239 if (tc->status() == ThreadContext::Halted) {
240 // inactive context, free to use
241 return tc;
242 }
243 }
244 return NULL;
245}
246
247void
248Process::initState()
249{
250 if (contextIds.empty())
251 fatal("Process %s is not associated with any HW contexts!\n", name());
252
253 // first thread context for this process... initialize & enable
254 ThreadContext *tc = system->getThreadContext(contextIds[0]);
255
256 // mark this context as active so it will start ticking.
257 tc->activate();
258
259 pTable->initState(tc);
260}
261
| 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#include "arch/arm/freebsd/process.hh"
81#elif THE_ISA == X86_ISA
82#include "arch/x86/linux/process.hh"
83#elif THE_ISA == POWER_ISA
84#include "arch/power/linux/process.hh"
85#else
86#error "THE_ISA not set"
87#endif
88
89
90using namespace std;
91using namespace TheISA;
92
93// current number of allocated processes
94int num_processes = 0;
95
96template<class IntType>
97AuxVector<IntType>::AuxVector(IntType type, IntType val)
98{
99 a_type = TheISA::htog(type);
100 a_val = TheISA::htog(val);
101}
102
103template struct AuxVector<uint32_t>;
104template struct AuxVector<uint64_t>;
105
106Process::Process(ProcessParams * params)
107 : SimObject(params), system(params->system),
108 brk_point(0), stack_base(0), stack_size(0), stack_min(0),
109 max_stack_size(params->max_stack_size),
110 next_thread_stack_base(0),
111 M5_pid(system->allocatePID()),
112 useArchPT(params->useArchPT),
113 kvmInSE(params->kvmInSE),
114 pTable(useArchPT ?
115 static_cast<PageTableBase *>(new ArchPageTable(name(), M5_pid, system)) :
116 static_cast<PageTableBase *>(new FuncPageTable(name(), M5_pid)) ),
117 initVirtMem(system->getSystemPort(), this,
118 SETranslatingPortProxy::Always)
119{
120 string in = params->input;
121 string out = params->output;
122 string err = params->errout;
123
124 // initialize file descriptors to default: same as simulator
125 int stdin_fd, stdout_fd, stderr_fd;
126
127 if (in == "stdin" || in == "cin")
128 stdin_fd = STDIN_FILENO;
129 else if (in == "None")
130 stdin_fd = -1;
131 else
132 stdin_fd = Process::openInputFile(in);
133
134 if (out == "stdout" || out == "cout")
135 stdout_fd = STDOUT_FILENO;
136 else if (out == "stderr" || out == "cerr")
137 stdout_fd = STDERR_FILENO;
138 else if (out == "None")
139 stdout_fd = -1;
140 else
141 stdout_fd = Process::openOutputFile(out);
142
143 if (err == "stdout" || err == "cout")
144 stderr_fd = STDOUT_FILENO;
145 else if (err == "stderr" || err == "cerr")
146 stderr_fd = STDERR_FILENO;
147 else if (err == "None")
148 stderr_fd = -1;
149 else if (err == out)
150 stderr_fd = stdout_fd;
151 else
152 stderr_fd = Process::openOutputFile(err);
153
154 // initialize first 3 fds (stdin, stdout, stderr)
155 Process::FdMap *fdo = &fd_map[STDIN_FILENO];
156 fdo->fd = stdin_fd;
157 fdo->filename = in;
158 fdo->flags = O_RDONLY;
159 fdo->mode = -1;
160 fdo->fileOffset = 0;
161
162 fdo = &fd_map[STDOUT_FILENO];
163 fdo->fd = stdout_fd;
164 fdo->filename = out;
165 fdo->flags = O_WRONLY | O_CREAT | O_TRUNC;
166 fdo->mode = 0774;
167 fdo->fileOffset = 0;
168
169 fdo = &fd_map[STDERR_FILENO];
170 fdo->fd = stderr_fd;
171 fdo->filename = err;
172 fdo->flags = O_WRONLY;
173 fdo->mode = -1;
174 fdo->fileOffset = 0;
175
176
177 // mark remaining fds as free
178 for (int i = 3; i <= MAX_FD; ++i) {
179 fdo = &fd_map[i];
180 fdo->fd = -1;
181 }
182
183 mmap_start = mmap_end = 0;
184 nxm_start = nxm_end = 0;
185 // other parameters will be initialized when the program is loaded
186}
187
188
189void
190Process::regStats()
191{
192 using namespace Stats;
193
194 num_syscalls
195 .name(name() + ".num_syscalls")
196 .desc("Number of system calls")
197 ;
198}
199
200//
201// static helper functions
202//
203int
204Process::openInputFile(const string &filename)
205{
206 int fd = open(filename.c_str(), O_RDONLY);
207
208 if (fd == -1) {
209 perror(NULL);
210 cerr << "unable to open \"" << filename << "\" for reading\n";
211 fatal("can't open input file");
212 }
213
214 return fd;
215}
216
217
218int
219Process::openOutputFile(const string &filename)
220{
221 int fd = open(filename.c_str(), O_WRONLY | O_CREAT | O_TRUNC, 0664);
222
223 if (fd == -1) {
224 perror(NULL);
225 cerr << "unable to open \"" << filename << "\" for writing\n";
226 fatal("can't open output file");
227 }
228
229 return fd;
230}
231
232ThreadContext *
233Process::findFreeContext()
234{
235 int size = contextIds.size();
236 ThreadContext *tc;
237 for (int i = 0; i < size; ++i) {
238 tc = system->getThreadContext(contextIds[i]);
239 if (tc->status() == ThreadContext::Halted) {
240 // inactive context, free to use
241 return tc;
242 }
243 }
244 return NULL;
245}
246
247void
248Process::initState()
249{
250 if (contextIds.empty())
251 fatal("Process %s is not associated with any HW contexts!\n", name());
252
253 // first thread context for this process... initialize & enable
254 ThreadContext *tc = system->getThreadContext(contextIds[0]);
255
256 // mark this context as active so it will start ticking.
257 tc->activate();
258
259 pTable->initState(tc);
260}
261
|
| 262unsigned int
263Process::drain(DrainManager *dm)
264{
265 find_file_offsets();
266 return 0;
267}
268
|
262// map simulator fd sim_fd to target fd tgt_fd
263void
264Process::dup_fd(int sim_fd, int tgt_fd)
265{
266 if (tgt_fd < 0 || tgt_fd > MAX_FD)
267 panic("Process::dup_fd tried to dup past MAX_FD (%d)", tgt_fd);
268
269 Process::FdMap *fdo = &fd_map[tgt_fd];
270 fdo->fd = sim_fd;
271}
272
273
274// generate new target fd for sim_fd
275int
276Process::alloc_fd(int sim_fd, const string& filename, int flags, int mode,
277 bool pipe)
278{
279 // in case open() returns an error, don't allocate a new fd
280 if (sim_fd == -1)
281 return -1;
282
283 // find first free target fd
284 for (int free_fd = 0; free_fd <= MAX_FD; ++free_fd) {
285 Process::FdMap *fdo = &fd_map[free_fd];
286 if (fdo->fd == -1 && fdo->driver == NULL) {
287 fdo->fd = sim_fd;
288 fdo->filename = filename;
289 fdo->mode = mode;
290 fdo->fileOffset = 0;
291 fdo->flags = flags;
292 fdo->isPipe = pipe;
293 fdo->readPipeSource = 0;
294 return free_fd;
295 }
296 }
297
298 panic("Process::alloc_fd: out of file descriptors!");
299}
300
301
302// free target fd (e.g., after close)
303void
304Process::free_fd(int tgt_fd)
305{
306 Process::FdMap *fdo = &fd_map[tgt_fd];
307 if (fdo->fd == -1)
308 warn("Process::free_fd: request to free unused fd %d", tgt_fd);
309
310 fdo->fd = -1;
311 fdo->filename = "NULL";
312 fdo->mode = 0;
313 fdo->fileOffset = 0;
314 fdo->flags = 0;
315 fdo->isPipe = false;
316 fdo->readPipeSource = 0;
317 fdo->driver = NULL;
318}
319
320
321// look up simulator fd for given target fd
322int
323Process::sim_fd(int tgt_fd)
324{
325 if (tgt_fd < 0 || tgt_fd > MAX_FD)
326 return -1;
327
328 return fd_map[tgt_fd].fd;
329}
330
331Process::FdMap *
332Process::sim_fd_obj(int tgt_fd)
333{
334 if (tgt_fd < 0 || tgt_fd > MAX_FD)
335 return NULL;
336
337 return &fd_map[tgt_fd];
338}
339
340void
341Process::allocateMem(Addr vaddr, int64_t size, bool clobber)
342{
343 int npages = divCeil(size, (int64_t)PageBytes);
344 Addr paddr = system->allocPhysPages(npages);
345 pTable->map(vaddr, paddr, size, clobber ? PageTableBase::Clobber : 0);
346}
347
348bool
349Process::fixupStackFault(Addr vaddr)
350{
351 // Check if this is already on the stack and there's just no page there
352 // yet.
353 if (vaddr >= stack_min && vaddr < stack_base) {
354 allocateMem(roundDown(vaddr, PageBytes), PageBytes);
355 return true;
356 }
357
358 // We've accessed the next page of the stack, so extend it to include
359 // this address.
360 if (vaddr < stack_min && vaddr >= stack_base - max_stack_size) {
361 while (vaddr < stack_min) {
362 stack_min -= TheISA::PageBytes;
363 if (stack_base - stack_min > max_stack_size)
364 fatal("Maximum stack size exceeded\n");
365 allocateMem(stack_min, TheISA::PageBytes);
366 inform("Increasing stack size by one page.");
367 };
368 return true;
369 }
370 return false;
371}
372
373// find all offsets for currently open files and save them
374void
375Process::fix_file_offsets()
376{
377 Process::FdMap *fdo_stdin = &fd_map[STDIN_FILENO];
378 Process::FdMap *fdo_stdout = &fd_map[STDOUT_FILENO];
379 Process::FdMap *fdo_stderr = &fd_map[STDERR_FILENO];
380 string in = fdo_stdin->filename;
381 string out = fdo_stdout->filename;
382 string err = fdo_stderr->filename;
383
384 // initialize file descriptors to default: same as simulator
385 int stdin_fd, stdout_fd, stderr_fd;
386
387 if (in == "stdin" || in == "cin")
388 stdin_fd = STDIN_FILENO;
389 else if (in == "NULL")
390 stdin_fd = -1;
391 else {
392 // open standard in and seek to the right location
393 stdin_fd = Process::openInputFile(in);
394 if (lseek(stdin_fd, fdo_stdin->fileOffset, SEEK_SET) < 0)
395 panic("Unable to seek to correct location in file: %s", in);
396 }
397
398 if (out == "stdout" || out == "cout")
399 stdout_fd = STDOUT_FILENO;
400 else if (out == "stderr" || out == "cerr")
401 stdout_fd = STDERR_FILENO;
402 else if (out == "NULL")
403 stdout_fd = -1;
404 else {
405 stdout_fd = Process::openOutputFile(out);
406 if (lseek(stdout_fd, fdo_stdout->fileOffset, SEEK_SET) < 0)
407 panic("Unable to seek to correct location in file: %s", out);
408 }
409
410 if (err == "stdout" || err == "cout")
411 stderr_fd = STDOUT_FILENO;
412 else if (err == "stderr" || err == "cerr")
413 stderr_fd = STDERR_FILENO;
414 else if (err == "NULL")
415 stderr_fd = -1;
416 else if (err == out)
417 stderr_fd = stdout_fd;
418 else {
419 stderr_fd = Process::openOutputFile(err);
420 if (lseek(stderr_fd, fdo_stderr->fileOffset, SEEK_SET) < 0)
421 panic("Unable to seek to correct location in file: %s", err);
422 }
423
424 fdo_stdin->fd = stdin_fd;
425 fdo_stdout->fd = stdout_fd;
426 fdo_stderr->fd = stderr_fd;
427
428
429 for (int free_fd = 3; free_fd <= MAX_FD; ++free_fd) {
430 Process::FdMap *fdo = &fd_map[free_fd];
431 if (fdo->fd != -1) {
432 if (fdo->isPipe){
433 if (fdo->filename == "PIPE-WRITE")
434 continue;
435 else {
436 assert (fdo->filename == "PIPE-READ");
437 //create a new pipe
438 int fds[2];
439 int pipe_retval = pipe(fds);
440
441 if (pipe_retval < 0) {
442 // error
443 panic("Unable to create new pipe.");
444 }
445 fdo->fd = fds[0]; //set read pipe
446 Process::FdMap *fdo_write = &fd_map[fdo->readPipeSource];
447 if (fdo_write->filename != "PIPE-WRITE")
448 panic ("Couldn't find write end of the pipe");
449
450 fdo_write->fd = fds[1];//set write pipe
451 }
452 } else {
453 //Open file
454 int fd = open(fdo->filename.c_str(), fdo->flags, fdo->mode);
455
456 if (fd == -1)
457 panic("Unable to open file: %s", fdo->filename);
458 fdo->fd = fd;
459
460 //Seek to correct location before checkpoint
461 if (lseek(fd, fdo->fileOffset, SEEK_SET) < 0)
462 panic("Unable to seek to correct location in file: %s",
463 fdo->filename);
464 }
465 }
466 }
467}
468
469void
470Process::find_file_offsets()
471{
472 for (int free_fd = 0; free_fd <= MAX_FD; ++free_fd) {
473 Process::FdMap *fdo = &fd_map[free_fd];
474 if (fdo->fd != -1) {
475 fdo->fileOffset = lseek(fdo->fd, 0, SEEK_CUR);
476 } else {
477 fdo->filename = "NULL";
478 fdo->fileOffset = 0;
479 }
480 }
481}
482
483void
484Process::setReadPipeSource(int read_pipe_fd, int source_fd)
485{
486 Process::FdMap *fdo = &fd_map[read_pipe_fd];
487 fdo->readPipeSource = source_fd;
488}
489
490void
| 269// map simulator fd sim_fd to target fd tgt_fd
270void
271Process::dup_fd(int sim_fd, int tgt_fd)
272{
273 if (tgt_fd < 0 || tgt_fd > MAX_FD)
274 panic("Process::dup_fd tried to dup past MAX_FD (%d)", tgt_fd);
275
276 Process::FdMap *fdo = &fd_map[tgt_fd];
277 fdo->fd = sim_fd;
278}
279
280
281// generate new target fd for sim_fd
282int
283Process::alloc_fd(int sim_fd, const string& filename, int flags, int mode,
284 bool pipe)
285{
286 // in case open() returns an error, don't allocate a new fd
287 if (sim_fd == -1)
288 return -1;
289
290 // find first free target fd
291 for (int free_fd = 0; free_fd <= MAX_FD; ++free_fd) {
292 Process::FdMap *fdo = &fd_map[free_fd];
293 if (fdo->fd == -1 && fdo->driver == NULL) {
294 fdo->fd = sim_fd;
295 fdo->filename = filename;
296 fdo->mode = mode;
297 fdo->fileOffset = 0;
298 fdo->flags = flags;
299 fdo->isPipe = pipe;
300 fdo->readPipeSource = 0;
301 return free_fd;
302 }
303 }
304
305 panic("Process::alloc_fd: out of file descriptors!");
306}
307
308
309// free target fd (e.g., after close)
310void
311Process::free_fd(int tgt_fd)
312{
313 Process::FdMap *fdo = &fd_map[tgt_fd];
314 if (fdo->fd == -1)
315 warn("Process::free_fd: request to free unused fd %d", tgt_fd);
316
317 fdo->fd = -1;
318 fdo->filename = "NULL";
319 fdo->mode = 0;
320 fdo->fileOffset = 0;
321 fdo->flags = 0;
322 fdo->isPipe = false;
323 fdo->readPipeSource = 0;
324 fdo->driver = NULL;
325}
326
327
328// look up simulator fd for given target fd
329int
330Process::sim_fd(int tgt_fd)
331{
332 if (tgt_fd < 0 || tgt_fd > MAX_FD)
333 return -1;
334
335 return fd_map[tgt_fd].fd;
336}
337
338Process::FdMap *
339Process::sim_fd_obj(int tgt_fd)
340{
341 if (tgt_fd < 0 || tgt_fd > MAX_FD)
342 return NULL;
343
344 return &fd_map[tgt_fd];
345}
346
347void
348Process::allocateMem(Addr vaddr, int64_t size, bool clobber)
349{
350 int npages = divCeil(size, (int64_t)PageBytes);
351 Addr paddr = system->allocPhysPages(npages);
352 pTable->map(vaddr, paddr, size, clobber ? PageTableBase::Clobber : 0);
353}
354
355bool
356Process::fixupStackFault(Addr vaddr)
357{
358 // Check if this is already on the stack and there's just no page there
359 // yet.
360 if (vaddr >= stack_min && vaddr < stack_base) {
361 allocateMem(roundDown(vaddr, PageBytes), PageBytes);
362 return true;
363 }
364
365 // We've accessed the next page of the stack, so extend it to include
366 // this address.
367 if (vaddr < stack_min && vaddr >= stack_base - max_stack_size) {
368 while (vaddr < stack_min) {
369 stack_min -= TheISA::PageBytes;
370 if (stack_base - stack_min > max_stack_size)
371 fatal("Maximum stack size exceeded\n");
372 allocateMem(stack_min, TheISA::PageBytes);
373 inform("Increasing stack size by one page.");
374 };
375 return true;
376 }
377 return false;
378}
379
380// find all offsets for currently open files and save them
381void
382Process::fix_file_offsets()
383{
384 Process::FdMap *fdo_stdin = &fd_map[STDIN_FILENO];
385 Process::FdMap *fdo_stdout = &fd_map[STDOUT_FILENO];
386 Process::FdMap *fdo_stderr = &fd_map[STDERR_FILENO];
387 string in = fdo_stdin->filename;
388 string out = fdo_stdout->filename;
389 string err = fdo_stderr->filename;
390
391 // initialize file descriptors to default: same as simulator
392 int stdin_fd, stdout_fd, stderr_fd;
393
394 if (in == "stdin" || in == "cin")
395 stdin_fd = STDIN_FILENO;
396 else if (in == "NULL")
397 stdin_fd = -1;
398 else {
399 // open standard in and seek to the right location
400 stdin_fd = Process::openInputFile(in);
401 if (lseek(stdin_fd, fdo_stdin->fileOffset, SEEK_SET) < 0)
402 panic("Unable to seek to correct location in file: %s", in);
403 }
404
405 if (out == "stdout" || out == "cout")
406 stdout_fd = STDOUT_FILENO;
407 else if (out == "stderr" || out == "cerr")
408 stdout_fd = STDERR_FILENO;
409 else if (out == "NULL")
410 stdout_fd = -1;
411 else {
412 stdout_fd = Process::openOutputFile(out);
413 if (lseek(stdout_fd, fdo_stdout->fileOffset, SEEK_SET) < 0)
414 panic("Unable to seek to correct location in file: %s", out);
415 }
416
417 if (err == "stdout" || err == "cout")
418 stderr_fd = STDOUT_FILENO;
419 else if (err == "stderr" || err == "cerr")
420 stderr_fd = STDERR_FILENO;
421 else if (err == "NULL")
422 stderr_fd = -1;
423 else if (err == out)
424 stderr_fd = stdout_fd;
425 else {
426 stderr_fd = Process::openOutputFile(err);
427 if (lseek(stderr_fd, fdo_stderr->fileOffset, SEEK_SET) < 0)
428 panic("Unable to seek to correct location in file: %s", err);
429 }
430
431 fdo_stdin->fd = stdin_fd;
432 fdo_stdout->fd = stdout_fd;
433 fdo_stderr->fd = stderr_fd;
434
435
436 for (int free_fd = 3; free_fd <= MAX_FD; ++free_fd) {
437 Process::FdMap *fdo = &fd_map[free_fd];
438 if (fdo->fd != -1) {
439 if (fdo->isPipe){
440 if (fdo->filename == "PIPE-WRITE")
441 continue;
442 else {
443 assert (fdo->filename == "PIPE-READ");
444 //create a new pipe
445 int fds[2];
446 int pipe_retval = pipe(fds);
447
448 if (pipe_retval < 0) {
449 // error
450 panic("Unable to create new pipe.");
451 }
452 fdo->fd = fds[0]; //set read pipe
453 Process::FdMap *fdo_write = &fd_map[fdo->readPipeSource];
454 if (fdo_write->filename != "PIPE-WRITE")
455 panic ("Couldn't find write end of the pipe");
456
457 fdo_write->fd = fds[1];//set write pipe
458 }
459 } else {
460 //Open file
461 int fd = open(fdo->filename.c_str(), fdo->flags, fdo->mode);
462
463 if (fd == -1)
464 panic("Unable to open file: %s", fdo->filename);
465 fdo->fd = fd;
466
467 //Seek to correct location before checkpoint
468 if (lseek(fd, fdo->fileOffset, SEEK_SET) < 0)
469 panic("Unable to seek to correct location in file: %s",
470 fdo->filename);
471 }
472 }
473 }
474}
475
476void
477Process::find_file_offsets()
478{
479 for (int free_fd = 0; free_fd <= MAX_FD; ++free_fd) {
480 Process::FdMap *fdo = &fd_map[free_fd];
481 if (fdo->fd != -1) {
482 fdo->fileOffset = lseek(fdo->fd, 0, SEEK_CUR);
483 } else {
484 fdo->filename = "NULL";
485 fdo->fileOffset = 0;
486 }
487 }
488}
489
490void
491Process::setReadPipeSource(int read_pipe_fd, int source_fd)
492{
493 Process::FdMap *fdo = &fd_map[read_pipe_fd];
494 fdo->readPipeSource = source_fd;
495}
496
497void
|
491Process::FdMap::serialize(std::ostream &os)
| 498Process::FdMap::serialize(CheckpointOut &cp) const
|
492{
493 SERIALIZE_SCALAR(fd);
494 SERIALIZE_SCALAR(isPipe);
495 SERIALIZE_SCALAR(filename);
496 SERIALIZE_SCALAR(flags);
497 SERIALIZE_SCALAR(readPipeSource);
498 SERIALIZE_SCALAR(fileOffset);
499}
500
501void
| 499{
500 SERIALIZE_SCALAR(fd);
501 SERIALIZE_SCALAR(isPipe);
502 SERIALIZE_SCALAR(filename);
503 SERIALIZE_SCALAR(flags);
504 SERIALIZE_SCALAR(readPipeSource);
505 SERIALIZE_SCALAR(fileOffset);
506}
507
508void
|
502Process::FdMap::unserialize(Checkpoint *cp, const std::string §ion)
| 509Process::FdMap::unserialize(CheckpointIn &cp)
|
503{
504 UNSERIALIZE_SCALAR(fd);
505 UNSERIALIZE_SCALAR(isPipe);
506 UNSERIALIZE_SCALAR(filename);
507 UNSERIALIZE_SCALAR(flags);
508 UNSERIALIZE_SCALAR(readPipeSource);
509 UNSERIALIZE_SCALAR(fileOffset);
510}
511
512void
| 510{
511 UNSERIALIZE_SCALAR(fd);
512 UNSERIALIZE_SCALAR(isPipe);
513 UNSERIALIZE_SCALAR(filename);
514 UNSERIALIZE_SCALAR(flags);
515 UNSERIALIZE_SCALAR(readPipeSource);
516 UNSERIALIZE_SCALAR(fileOffset);
517}
518
519void
|
513Process::serialize(std::ostream &os)
| 520Process::serialize(CheckpointOut &cp) const
|
514{
515 SERIALIZE_SCALAR(brk_point);
516 SERIALIZE_SCALAR(stack_base);
517 SERIALIZE_SCALAR(stack_size);
518 SERIALIZE_SCALAR(stack_min);
519 SERIALIZE_SCALAR(next_thread_stack_base);
520 SERIALIZE_SCALAR(mmap_start);
521 SERIALIZE_SCALAR(mmap_end);
522 SERIALIZE_SCALAR(nxm_start);
523 SERIALIZE_SCALAR(nxm_end);
| 521{
522 SERIALIZE_SCALAR(brk_point);
523 SERIALIZE_SCALAR(stack_base);
524 SERIALIZE_SCALAR(stack_size);
525 SERIALIZE_SCALAR(stack_min);
526 SERIALIZE_SCALAR(next_thread_stack_base);
527 SERIALIZE_SCALAR(mmap_start);
528 SERIALIZE_SCALAR(mmap_end);
529 SERIALIZE_SCALAR(nxm_start);
530 SERIALIZE_SCALAR(nxm_end);
|
524 find_file_offsets();
525 pTable->serialize(os);
| 531 pTable->serialize(cp);
|
526 for (int x = 0; x <= MAX_FD; x++) {
| 532 for (int x = 0; x <= MAX_FD; x++) {
|
527 nameOut(os, csprintf("%s.FdMap%d", name(), x));
528 fd_map[x].serialize(os);
| 533 fd_map[x].serializeSection(cp, csprintf("FdMap%d", x));
|
529 }
530 SERIALIZE_SCALAR(M5_pid);
531
532}
533
534void
| 534 }
535 SERIALIZE_SCALAR(M5_pid);
536
537}
538
539void
|
535Process::unserialize(Checkpoint *cp, const std::string §ion)
| 540Process::unserialize(CheckpointIn &cp)
|
536{
537 UNSERIALIZE_SCALAR(brk_point);
538 UNSERIALIZE_SCALAR(stack_base);
539 UNSERIALIZE_SCALAR(stack_size);
540 UNSERIALIZE_SCALAR(stack_min);
541 UNSERIALIZE_SCALAR(next_thread_stack_base);
542 UNSERIALIZE_SCALAR(mmap_start);
543 UNSERIALIZE_SCALAR(mmap_end);
544 UNSERIALIZE_SCALAR(nxm_start);
545 UNSERIALIZE_SCALAR(nxm_end);
| 541{
542 UNSERIALIZE_SCALAR(brk_point);
543 UNSERIALIZE_SCALAR(stack_base);
544 UNSERIALIZE_SCALAR(stack_size);
545 UNSERIALIZE_SCALAR(stack_min);
546 UNSERIALIZE_SCALAR(next_thread_stack_base);
547 UNSERIALIZE_SCALAR(mmap_start);
548 UNSERIALIZE_SCALAR(mmap_end);
549 UNSERIALIZE_SCALAR(nxm_start);
550 UNSERIALIZE_SCALAR(nxm_end);
|
546 pTable->unserialize(cp, section);
| 551 pTable->unserialize(cp);
|
547 for (int x = 0; x <= MAX_FD; x++) {
| 552 for (int x = 0; x <= MAX_FD; x++) {
|
548 fd_map[x].unserialize(cp, csprintf("%s.FdMap%d", section, x));
| 553 fd_map[x].unserializeSection(cp, csprintf("FdMap%d", x));
|
549 }
550 fix_file_offsets();
551 UNSERIALIZE_OPT_SCALAR(M5_pid);
552 // The above returns a bool so that you could do something if you don't
553 // find the param in the checkpoint if you wanted to, like set a default
554 // but in this case we'll just stick with the instantianted value if not
555 // found.
556}
557
558
559bool
560Process::map(Addr vaddr, Addr paddr, int size, bool cacheable)
561{
562 pTable->map(vaddr, paddr, size,
563 cacheable ? 0 : PageTableBase::Uncacheable);
564 return true;
565}
566
567
568////////////////////////////////////////////////////////////////////////
569//
570// LiveProcess member definitions
571//
572////////////////////////////////////////////////////////////////////////
573
574
575LiveProcess::LiveProcess(LiveProcessParams *params, ObjectFile *_objFile)
576 : Process(params), objFile(_objFile),
577 argv(params->cmd), envp(params->env), cwd(params->cwd),
578 __uid(params->uid), __euid(params->euid),
579 __gid(params->gid), __egid(params->egid),
580 __pid(params->pid), __ppid(params->ppid),
581 drivers(params->drivers)
582{
583
584 // load up symbols, if any... these may be used for debugging or
585 // profiling.
586 if (!debugSymbolTable) {
587 debugSymbolTable = new SymbolTable();
588 if (!objFile->loadGlobalSymbols(debugSymbolTable) ||
589 !objFile->loadLocalSymbols(debugSymbolTable) ||
590 !objFile->loadWeakSymbols(debugSymbolTable)) {
591 // didn't load any symbols
592 delete debugSymbolTable;
593 debugSymbolTable = NULL;
594 }
595 }
596}
597
598void
599LiveProcess::syscall(int64_t callnum, ThreadContext *tc)
600{
601 num_syscalls++;
602
603 SyscallDesc *desc = getDesc(callnum);
604 if (desc == NULL)
605 fatal("Syscall %d out of range", callnum);
606
607 desc->doSyscall(callnum, this, tc);
608}
609
610IntReg
611LiveProcess::getSyscallArg(ThreadContext *tc, int &i, int width)
612{
613 return getSyscallArg(tc, i);
614}
615
616
617EmulatedDriver *
618LiveProcess::findDriver(std::string filename)
619{
620 for (EmulatedDriver *d : drivers) {
621 if (d->match(filename))
622 return d;
623 }
624
625 return NULL;
626}
627
628
629LiveProcess *
630LiveProcess::create(LiveProcessParams * params)
631{
632 LiveProcess *process = NULL;
633
634 string executable =
635 params->executable == "" ? params->cmd[0] : params->executable;
636 ObjectFile *objFile = createObjectFile(executable);
637 if (objFile == NULL) {
638 fatal("Can't load object file %s", executable);
639 }
640
641 if (objFile->isDynamic())
642 fatal("Object file is a dynamic executable however only static "
643 "executables are supported!\n Please recompile your "
644 "executable as a static binary and try again.\n");
645
646#if THE_ISA == ALPHA_ISA
647 if (objFile->getArch() != ObjectFile::Alpha)
648 fatal("Object file architecture does not match compiled ISA (Alpha).");
649
650 switch (objFile->getOpSys()) {
651 case ObjectFile::Tru64:
652 process = new AlphaTru64Process(params, objFile);
653 break;
654
655 case ObjectFile::UnknownOpSys:
656 warn("Unknown operating system; assuming Linux.");
657 // fall through
658 case ObjectFile::Linux:
659 process = new AlphaLinuxProcess(params, objFile);
660 break;
661
662 default:
663 fatal("Unknown/unsupported operating system.");
664 }
665#elif THE_ISA == SPARC_ISA
666 if (objFile->getArch() != ObjectFile::SPARC64 &&
667 objFile->getArch() != ObjectFile::SPARC32)
668 fatal("Object file architecture does not match compiled ISA (SPARC).");
669 switch (objFile->getOpSys()) {
670 case ObjectFile::UnknownOpSys:
671 warn("Unknown operating system; assuming Linux.");
672 // fall through
673 case ObjectFile::Linux:
674 if (objFile->getArch() == ObjectFile::SPARC64) {
675 process = new Sparc64LinuxProcess(params, objFile);
676 } else {
677 process = new Sparc32LinuxProcess(params, objFile);
678 }
679 break;
680
681
682 case ObjectFile::Solaris:
683 process = new SparcSolarisProcess(params, objFile);
684 break;
685
686 default:
687 fatal("Unknown/unsupported operating system.");
688 }
689#elif THE_ISA == X86_ISA
690 if (objFile->getArch() != ObjectFile::X86_64 &&
691 objFile->getArch() != ObjectFile::I386)
692 fatal("Object file architecture does not match compiled ISA (x86).");
693 switch (objFile->getOpSys()) {
694 case ObjectFile::UnknownOpSys:
695 warn("Unknown operating system; assuming Linux.");
696 // fall through
697 case ObjectFile::Linux:
698 if (objFile->getArch() == ObjectFile::X86_64) {
699 process = new X86_64LinuxProcess(params, objFile);
700 } else {
701 process = new I386LinuxProcess(params, objFile);
702 }
703 break;
704
705 default:
706 fatal("Unknown/unsupported operating system.");
707 }
708#elif THE_ISA == MIPS_ISA
709 if (objFile->getArch() != ObjectFile::Mips)
710 fatal("Object file architecture does not match compiled ISA (MIPS).");
711 switch (objFile->getOpSys()) {
712 case ObjectFile::UnknownOpSys:
713 warn("Unknown operating system; assuming Linux.");
714 // fall through
715 case ObjectFile::Linux:
716 process = new MipsLinuxProcess(params, objFile);
717 break;
718
719 default:
720 fatal("Unknown/unsupported operating system.");
721 }
722#elif THE_ISA == ARM_ISA
723 ObjectFile::Arch arch = objFile->getArch();
724 if (arch != ObjectFile::Arm && arch != ObjectFile::Thumb &&
725 arch != ObjectFile::Arm64)
726 fatal("Object file architecture does not match compiled ISA (ARM).");
727 switch (objFile->getOpSys()) {
728 case ObjectFile::UnknownOpSys:
729 warn("Unknown operating system; assuming Linux.");
730 // fall through
731 case ObjectFile::Linux:
732 if (arch == ObjectFile::Arm64) {
733 process = new ArmLinuxProcess64(params, objFile,
734 objFile->getArch());
735 } else {
736 process = new ArmLinuxProcess32(params, objFile,
737 objFile->getArch());
738 }
739 break;
740 case ObjectFile::FreeBSD:
741 if (arch == ObjectFile::Arm64) {
742 process = new ArmFreebsdProcess64(params, objFile,
743 objFile->getArch());
744 } else {
745 process = new ArmFreebsdProcess32(params, objFile,
746 objFile->getArch());
747 }
748 break;
749 case ObjectFile::LinuxArmOABI:
750 fatal("M5 does not support ARM OABI binaries. Please recompile with an"
751 " EABI compiler.");
752 default:
753 fatal("Unknown/unsupported operating system.");
754 }
755#elif THE_ISA == POWER_ISA
756 if (objFile->getArch() != ObjectFile::Power)
757 fatal("Object file architecture does not match compiled ISA (Power).");
758 switch (objFile->getOpSys()) {
759 case ObjectFile::UnknownOpSys:
760 warn("Unknown operating system; assuming Linux.");
761 // fall through
762 case ObjectFile::Linux:
763 process = new PowerLinuxProcess(params, objFile);
764 break;
765
766 default:
767 fatal("Unknown/unsupported operating system.");
768 }
769#else
770#error "THE_ISA not set"
771#endif
772
773 if (process == NULL)
774 fatal("Unknown error creating process object.");
775 return process;
776}
777
778LiveProcess *
779LiveProcessParams::create()
780{
781 return LiveProcess::create(this);
782}
| 554 }
555 fix_file_offsets();
556 UNSERIALIZE_OPT_SCALAR(M5_pid);
557 // The above returns a bool so that you could do something if you don't
558 // find the param in the checkpoint if you wanted to, like set a default
559 // but in this case we'll just stick with the instantianted value if not
560 // found.
561}
562
563
564bool
565Process::map(Addr vaddr, Addr paddr, int size, bool cacheable)
566{
567 pTable->map(vaddr, paddr, size,
568 cacheable ? 0 : PageTableBase::Uncacheable);
569 return true;
570}
571
572
573////////////////////////////////////////////////////////////////////////
574//
575// LiveProcess member definitions
576//
577////////////////////////////////////////////////////////////////////////
578
579
580LiveProcess::LiveProcess(LiveProcessParams *params, ObjectFile *_objFile)
581 : Process(params), objFile(_objFile),
582 argv(params->cmd), envp(params->env), cwd(params->cwd),
583 __uid(params->uid), __euid(params->euid),
584 __gid(params->gid), __egid(params->egid),
585 __pid(params->pid), __ppid(params->ppid),
586 drivers(params->drivers)
587{
588
589 // load up symbols, if any... these may be used for debugging or
590 // profiling.
591 if (!debugSymbolTable) {
592 debugSymbolTable = new SymbolTable();
593 if (!objFile->loadGlobalSymbols(debugSymbolTable) ||
594 !objFile->loadLocalSymbols(debugSymbolTable) ||
595 !objFile->loadWeakSymbols(debugSymbolTable)) {
596 // didn't load any symbols
597 delete debugSymbolTable;
598 debugSymbolTable = NULL;
599 }
600 }
601}
602
603void
604LiveProcess::syscall(int64_t callnum, ThreadContext *tc)
605{
606 num_syscalls++;
607
608 SyscallDesc *desc = getDesc(callnum);
609 if (desc == NULL)
610 fatal("Syscall %d out of range", callnum);
611
612 desc->doSyscall(callnum, this, tc);
613}
614
615IntReg
616LiveProcess::getSyscallArg(ThreadContext *tc, int &i, int width)
617{
618 return getSyscallArg(tc, i);
619}
620
621
622EmulatedDriver *
623LiveProcess::findDriver(std::string filename)
624{
625 for (EmulatedDriver *d : drivers) {
626 if (d->match(filename))
627 return d;
628 }
629
630 return NULL;
631}
632
633
634LiveProcess *
635LiveProcess::create(LiveProcessParams * params)
636{
637 LiveProcess *process = NULL;
638
639 string executable =
640 params->executable == "" ? params->cmd[0] : params->executable;
641 ObjectFile *objFile = createObjectFile(executable);
642 if (objFile == NULL) {
643 fatal("Can't load object file %s", executable);
644 }
645
646 if (objFile->isDynamic())
647 fatal("Object file is a dynamic executable however only static "
648 "executables are supported!\n Please recompile your "
649 "executable as a static binary and try again.\n");
650
651#if THE_ISA == ALPHA_ISA
652 if (objFile->getArch() != ObjectFile::Alpha)
653 fatal("Object file architecture does not match compiled ISA (Alpha).");
654
655 switch (objFile->getOpSys()) {
656 case ObjectFile::Tru64:
657 process = new AlphaTru64Process(params, objFile);
658 break;
659
660 case ObjectFile::UnknownOpSys:
661 warn("Unknown operating system; assuming Linux.");
662 // fall through
663 case ObjectFile::Linux:
664 process = new AlphaLinuxProcess(params, objFile);
665 break;
666
667 default:
668 fatal("Unknown/unsupported operating system.");
669 }
670#elif THE_ISA == SPARC_ISA
671 if (objFile->getArch() != ObjectFile::SPARC64 &&
672 objFile->getArch() != ObjectFile::SPARC32)
673 fatal("Object file architecture does not match compiled ISA (SPARC).");
674 switch (objFile->getOpSys()) {
675 case ObjectFile::UnknownOpSys:
676 warn("Unknown operating system; assuming Linux.");
677 // fall through
678 case ObjectFile::Linux:
679 if (objFile->getArch() == ObjectFile::SPARC64) {
680 process = new Sparc64LinuxProcess(params, objFile);
681 } else {
682 process = new Sparc32LinuxProcess(params, objFile);
683 }
684 break;
685
686
687 case ObjectFile::Solaris:
688 process = new SparcSolarisProcess(params, objFile);
689 break;
690
691 default:
692 fatal("Unknown/unsupported operating system.");
693 }
694#elif THE_ISA == X86_ISA
695 if (objFile->getArch() != ObjectFile::X86_64 &&
696 objFile->getArch() != ObjectFile::I386)
697 fatal("Object file architecture does not match compiled ISA (x86).");
698 switch (objFile->getOpSys()) {
699 case ObjectFile::UnknownOpSys:
700 warn("Unknown operating system; assuming Linux.");
701 // fall through
702 case ObjectFile::Linux:
703 if (objFile->getArch() == ObjectFile::X86_64) {
704 process = new X86_64LinuxProcess(params, objFile);
705 } else {
706 process = new I386LinuxProcess(params, objFile);
707 }
708 break;
709
710 default:
711 fatal("Unknown/unsupported operating system.");
712 }
713#elif THE_ISA == MIPS_ISA
714 if (objFile->getArch() != ObjectFile::Mips)
715 fatal("Object file architecture does not match compiled ISA (MIPS).");
716 switch (objFile->getOpSys()) {
717 case ObjectFile::UnknownOpSys:
718 warn("Unknown operating system; assuming Linux.");
719 // fall through
720 case ObjectFile::Linux:
721 process = new MipsLinuxProcess(params, objFile);
722 break;
723
724 default:
725 fatal("Unknown/unsupported operating system.");
726 }
727#elif THE_ISA == ARM_ISA
728 ObjectFile::Arch arch = objFile->getArch();
729 if (arch != ObjectFile::Arm && arch != ObjectFile::Thumb &&
730 arch != ObjectFile::Arm64)
731 fatal("Object file architecture does not match compiled ISA (ARM).");
732 switch (objFile->getOpSys()) {
733 case ObjectFile::UnknownOpSys:
734 warn("Unknown operating system; assuming Linux.");
735 // fall through
736 case ObjectFile::Linux:
737 if (arch == ObjectFile::Arm64) {
738 process = new ArmLinuxProcess64(params, objFile,
739 objFile->getArch());
740 } else {
741 process = new ArmLinuxProcess32(params, objFile,
742 objFile->getArch());
743 }
744 break;
745 case ObjectFile::FreeBSD:
746 if (arch == ObjectFile::Arm64) {
747 process = new ArmFreebsdProcess64(params, objFile,
748 objFile->getArch());
749 } else {
750 process = new ArmFreebsdProcess32(params, objFile,
751 objFile->getArch());
752 }
753 break;
754 case ObjectFile::LinuxArmOABI:
755 fatal("M5 does not support ARM OABI binaries. Please recompile with an"
756 " EABI compiler.");
757 default:
758 fatal("Unknown/unsupported operating system.");
759 }
760#elif THE_ISA == POWER_ISA
761 if (objFile->getArch() != ObjectFile::Power)
762 fatal("Object file architecture does not match compiled ISA (Power).");
763 switch (objFile->getOpSys()) {
764 case ObjectFile::UnknownOpSys:
765 warn("Unknown operating system; assuming Linux.");
766 // fall through
767 case ObjectFile::Linux:
768 process = new PowerLinuxProcess(params, objFile);
769 break;
770
771 default:
772 fatal("Unknown/unsupported operating system.");
773 }
774#else
775#error "THE_ISA not set"
776#endif
777
778 if (process == NULL)
779 fatal("Unknown error creating process object.");
780 return process;
781}
782
783LiveProcess *
784LiveProcessParams::create()
785{
786 return LiveProcess::create(this);
787}
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