process.cc (8795:0909f8ed7aa0) process.cc (8796:a2ae5c378d0a)
1/*
2 * Copyright (c) 2001-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Nathan Binkert
29 * Steve Reinhardt
30 * Ali Saidi
31 */
32
33#include <fcntl.h>
34#include <unistd.h>
35
36#include <cstdio>
37#include <string>
38
39#include "base/loader/object_file.hh"
40#include "base/loader/symtab.hh"
41#include "base/intmath.hh"
42#include "base/statistics.hh"
43#include "config/the_isa.hh"
44#include "cpu/thread_context.hh"
45#include "mem/page_table.hh"
46#include "mem/physical.hh"
47#include "mem/translating_port.hh"
48#include "params/LiveProcess.hh"
49#include "params/Process.hh"
50#include "sim/debug.hh"
51#include "sim/process.hh"
52#include "sim/process_impl.hh"
53#include "sim/stats.hh"
54#include "sim/syscall_emul.hh"
55#include "sim/system.hh"
56
57#if THE_ISA == ALPHA_ISA
58#include "arch/alpha/linux/process.hh"
59#include "arch/alpha/tru64/process.hh"
60#elif THE_ISA == SPARC_ISA
61#include "arch/sparc/linux/process.hh"
62#include "arch/sparc/solaris/process.hh"
63#elif THE_ISA == MIPS_ISA
64#include "arch/mips/linux/process.hh"
65#elif THE_ISA == ARM_ISA
66#include "arch/arm/linux/process.hh"
67#elif THE_ISA == X86_ISA
68#include "arch/x86/linux/process.hh"
69#elif THE_ISA == POWER_ISA
70#include "arch/power/linux/process.hh"
71#else
72#error "THE_ISA not set"
73#endif
74
75
76using namespace std;
77using namespace TheISA;
78
79// current number of allocated processes
80int num_processes = 0;
81
82template<class IntType>
83AuxVector<IntType>::AuxVector(IntType type, IntType val)
84{
85 a_type = TheISA::htog(type);
86 a_val = TheISA::htog(val);
87}
88
89template class AuxVector<uint32_t>;
90template class AuxVector<uint64_t>;
91
92Process::Process(ProcessParams * params)
93 : SimObject(params), system(params->system),
94 max_stack_size(params->max_stack_size)
95{
96 string in = params->input;
97 string out = params->output;
98 string err = params->errout;
99
100 // initialize file descriptors to default: same as simulator
101 int stdin_fd, stdout_fd, stderr_fd;
102
103 if (in == "stdin" || in == "cin")
104 stdin_fd = STDIN_FILENO;
105 else if (in == "None")
106 stdin_fd = -1;
107 else
108 stdin_fd = Process::openInputFile(in);
109
110 if (out == "stdout" || out == "cout")
111 stdout_fd = STDOUT_FILENO;
112 else if (out == "stderr" || out == "cerr")
113 stdout_fd = STDERR_FILENO;
114 else if (out == "None")
115 stdout_fd = -1;
116 else
117 stdout_fd = Process::openOutputFile(out);
118
119 if (err == "stdout" || err == "cout")
120 stderr_fd = STDOUT_FILENO;
121 else if (err == "stderr" || err == "cerr")
122 stderr_fd = STDERR_FILENO;
123 else if (err == "None")
124 stderr_fd = -1;
125 else if (err == out)
126 stderr_fd = stdout_fd;
127 else
128 stderr_fd = Process::openOutputFile(err);
129
130 M5_pid = system->allocatePID();
131 // initialize first 3 fds (stdin, stdout, stderr)
132 Process::FdMap *fdo = &fd_map[STDIN_FILENO];
133 fdo->fd = stdin_fd;
134 fdo->filename = in;
135 fdo->flags = O_RDONLY;
136 fdo->mode = -1;
137 fdo->fileOffset = 0;
138
139 fdo = &fd_map[STDOUT_FILENO];
140 fdo->fd = stdout_fd;
141 fdo->filename = out;
142 fdo->flags = O_WRONLY | O_CREAT | O_TRUNC;
143 fdo->mode = 0774;
144 fdo->fileOffset = 0;
145
146 fdo = &fd_map[STDERR_FILENO];
147 fdo->fd = stderr_fd;
148 fdo->filename = err;
149 fdo->flags = O_WRONLY;
150 fdo->mode = -1;
151 fdo->fileOffset = 0;
152
153
154 // mark remaining fds as free
155 for (int i = 3; i <= MAX_FD; ++i) {
156 Process::FdMap *fdo = &fd_map[i];
157 fdo->fd = -1;
158 }
159
160 mmap_start = mmap_end = 0;
161 nxm_start = nxm_end = 0;
162 pTable = new PageTable(name(), M5_pid);
163 // other parameters will be initialized when the program is loaded
164}
165
166
167void
168Process::regStats()
169{
170 using namespace Stats;
171
172 num_syscalls
173 .name(name() + ".num_syscalls")
174 .desc("Number of system calls")
175 ;
176}
177
178//
179// static helper functions
180//
181int
182Process::openInputFile(const string &filename)
183{
184 int fd = open(filename.c_str(), O_RDONLY);
185
186 if (fd == -1) {
187 perror(NULL);
188 cerr << "unable to open \"" << filename << "\" for reading\n";
189 fatal("can't open input file");
190 }
191
192 return fd;
193}
194
195
196int
197Process::openOutputFile(const string &filename)
198{
199 int fd = open(filename.c_str(), O_WRONLY | O_CREAT | O_TRUNC, 0664);
200
201 if (fd == -1) {
202 perror(NULL);
203 cerr << "unable to open \"" << filename << "\" for writing\n";
204 fatal("can't open output file");
205 }
206
207 return fd;
208}
209
210ThreadContext *
211Process::findFreeContext()
212{
213 int size = contextIds.size();
214 ThreadContext *tc;
215 for (int i = 0; i < size; ++i) {
216 tc = system->getThreadContext(contextIds[i]);
217 if (tc->status() == ThreadContext::Halted) {
218 // inactive context, free to use
219 return tc;
220 }
221 }
222 return NULL;
223}
224
225void
226Process::initState()
227{
228 if (contextIds.empty())
229 fatal("Process %s is not associated with any HW contexts!\n", name());
230
231 // first thread context for this process... initialize & enable
232 ThreadContext *tc = system->getThreadContext(contextIds[0]);
233
234 // mark this context as active so it will start ticking.
235 tc->activate(0);
236
237 Port *mem_port;
238 mem_port = system->physmem->getPort("functional");
239 initVirtMem = new TranslatingPort("process init port", this,
240 TranslatingPort::Always);
241 mem_port->setPeer(initVirtMem);
242 initVirtMem->setPeer(mem_port);
243}
244
245// map simulator fd sim_fd to target fd tgt_fd
246void
247Process::dup_fd(int sim_fd, int tgt_fd)
248{
249 if (tgt_fd < 0 || tgt_fd > MAX_FD)
250 panic("Process::dup_fd tried to dup past MAX_FD (%d)", tgt_fd);
251
252 Process::FdMap *fdo = &fd_map[tgt_fd];
253 fdo->fd = sim_fd;
254}
255
256
257// generate new target fd for sim_fd
258int
259Process::alloc_fd(int sim_fd, string filename, int flags, int mode, bool pipe)
260{
261 // in case open() returns an error, don't allocate a new fd
262 if (sim_fd == -1)
263 return -1;
264
265 // find first free target fd
266 for (int free_fd = 0; free_fd <= MAX_FD; ++free_fd) {
267 Process::FdMap *fdo = &fd_map[free_fd];
268 if (fdo->fd == -1) {
269 fdo->fd = sim_fd;
270 fdo->filename = filename;
271 fdo->mode = mode;
272 fdo->fileOffset = 0;
273 fdo->flags = flags;
274 fdo->isPipe = pipe;
275 fdo->readPipeSource = 0;
276 return free_fd;
277 }
278 }
279
280 panic("Process::alloc_fd: out of file descriptors!");
281}
282
283
284// free target fd (e.g., after close)
285void
286Process::free_fd(int tgt_fd)
287{
288 Process::FdMap *fdo = &fd_map[tgt_fd];
289 if (fdo->fd == -1)
290 warn("Process::free_fd: request to free unused fd %d", tgt_fd);
291
292 fdo->fd = -1;
293 fdo->filename = "NULL";
294 fdo->mode = 0;
295 fdo->fileOffset = 0;
296 fdo->flags = 0;
297 fdo->isPipe = false;
298 fdo->readPipeSource = 0;
299}
300
301
302// look up simulator fd for given target fd
303int
304Process::sim_fd(int tgt_fd)
305{
306 if (tgt_fd < 0 || tgt_fd > MAX_FD)
307 return -1;
308
309 return fd_map[tgt_fd].fd;
310}
311
312Process::FdMap *
313Process::sim_fd_obj(int tgt_fd)
314{
315 if (tgt_fd < 0 || tgt_fd > MAX_FD)
316 return NULL;
317
318 return &fd_map[tgt_fd];
319}
320
321void
322Process::allocateMem(Addr vaddr, int64_t size, bool clobber)
323{
324 int npages = divCeil(size, (int64_t)VMPageSize);
325 Addr paddr = system->allocPhysPages(npages);
326 pTable->map(vaddr, paddr, size, clobber);
327}
328
329bool
330Process::fixupStackFault(Addr vaddr)
331{
332 // Check if this is already on the stack and there's just no page there
333 // yet.
334 if (vaddr >= stack_min && vaddr < stack_base) {
335 allocateMem(roundDown(vaddr, VMPageSize), VMPageSize);
336 return true;
337 }
338
339 // We've accessed the next page of the stack, so extend it to include
340 // this address.
341 if (vaddr < stack_min && vaddr >= stack_base - max_stack_size) {
342 while (vaddr < stack_min) {
343 stack_min -= TheISA::PageBytes;
344 if (stack_base - stack_min > max_stack_size)
345 fatal("Maximum stack size exceeded\n");
346 if (stack_base - stack_min > 8 * 1024 * 1024)
347 fatal("Over max stack size for one thread\n");
348 allocateMem(stack_min, TheISA::PageBytes);
349 inform("Increasing stack size by one page.");
350 };
351 return true;
352 }
1/*
2 * Copyright (c) 2001-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Nathan Binkert
29 * Steve Reinhardt
30 * Ali Saidi
31 */
32
33#include <fcntl.h>
34#include <unistd.h>
35
36#include <cstdio>
37#include <string>
38
39#include "base/loader/object_file.hh"
40#include "base/loader/symtab.hh"
41#include "base/intmath.hh"
42#include "base/statistics.hh"
43#include "config/the_isa.hh"
44#include "cpu/thread_context.hh"
45#include "mem/page_table.hh"
46#include "mem/physical.hh"
47#include "mem/translating_port.hh"
48#include "params/LiveProcess.hh"
49#include "params/Process.hh"
50#include "sim/debug.hh"
51#include "sim/process.hh"
52#include "sim/process_impl.hh"
53#include "sim/stats.hh"
54#include "sim/syscall_emul.hh"
55#include "sim/system.hh"
56
57#if THE_ISA == ALPHA_ISA
58#include "arch/alpha/linux/process.hh"
59#include "arch/alpha/tru64/process.hh"
60#elif THE_ISA == SPARC_ISA
61#include "arch/sparc/linux/process.hh"
62#include "arch/sparc/solaris/process.hh"
63#elif THE_ISA == MIPS_ISA
64#include "arch/mips/linux/process.hh"
65#elif THE_ISA == ARM_ISA
66#include "arch/arm/linux/process.hh"
67#elif THE_ISA == X86_ISA
68#include "arch/x86/linux/process.hh"
69#elif THE_ISA == POWER_ISA
70#include "arch/power/linux/process.hh"
71#else
72#error "THE_ISA not set"
73#endif
74
75
76using namespace std;
77using namespace TheISA;
78
79// current number of allocated processes
80int num_processes = 0;
81
82template<class IntType>
83AuxVector<IntType>::AuxVector(IntType type, IntType val)
84{
85 a_type = TheISA::htog(type);
86 a_val = TheISA::htog(val);
87}
88
89template class AuxVector<uint32_t>;
90template class AuxVector<uint64_t>;
91
92Process::Process(ProcessParams * params)
93 : SimObject(params), system(params->system),
94 max_stack_size(params->max_stack_size)
95{
96 string in = params->input;
97 string out = params->output;
98 string err = params->errout;
99
100 // initialize file descriptors to default: same as simulator
101 int stdin_fd, stdout_fd, stderr_fd;
102
103 if (in == "stdin" || in == "cin")
104 stdin_fd = STDIN_FILENO;
105 else if (in == "None")
106 stdin_fd = -1;
107 else
108 stdin_fd = Process::openInputFile(in);
109
110 if (out == "stdout" || out == "cout")
111 stdout_fd = STDOUT_FILENO;
112 else if (out == "stderr" || out == "cerr")
113 stdout_fd = STDERR_FILENO;
114 else if (out == "None")
115 stdout_fd = -1;
116 else
117 stdout_fd = Process::openOutputFile(out);
118
119 if (err == "stdout" || err == "cout")
120 stderr_fd = STDOUT_FILENO;
121 else if (err == "stderr" || err == "cerr")
122 stderr_fd = STDERR_FILENO;
123 else if (err == "None")
124 stderr_fd = -1;
125 else if (err == out)
126 stderr_fd = stdout_fd;
127 else
128 stderr_fd = Process::openOutputFile(err);
129
130 M5_pid = system->allocatePID();
131 // initialize first 3 fds (stdin, stdout, stderr)
132 Process::FdMap *fdo = &fd_map[STDIN_FILENO];
133 fdo->fd = stdin_fd;
134 fdo->filename = in;
135 fdo->flags = O_RDONLY;
136 fdo->mode = -1;
137 fdo->fileOffset = 0;
138
139 fdo = &fd_map[STDOUT_FILENO];
140 fdo->fd = stdout_fd;
141 fdo->filename = out;
142 fdo->flags = O_WRONLY | O_CREAT | O_TRUNC;
143 fdo->mode = 0774;
144 fdo->fileOffset = 0;
145
146 fdo = &fd_map[STDERR_FILENO];
147 fdo->fd = stderr_fd;
148 fdo->filename = err;
149 fdo->flags = O_WRONLY;
150 fdo->mode = -1;
151 fdo->fileOffset = 0;
152
153
154 // mark remaining fds as free
155 for (int i = 3; i <= MAX_FD; ++i) {
156 Process::FdMap *fdo = &fd_map[i];
157 fdo->fd = -1;
158 }
159
160 mmap_start = mmap_end = 0;
161 nxm_start = nxm_end = 0;
162 pTable = new PageTable(name(), M5_pid);
163 // other parameters will be initialized when the program is loaded
164}
165
166
167void
168Process::regStats()
169{
170 using namespace Stats;
171
172 num_syscalls
173 .name(name() + ".num_syscalls")
174 .desc("Number of system calls")
175 ;
176}
177
178//
179// static helper functions
180//
181int
182Process::openInputFile(const string &filename)
183{
184 int fd = open(filename.c_str(), O_RDONLY);
185
186 if (fd == -1) {
187 perror(NULL);
188 cerr << "unable to open \"" << filename << "\" for reading\n";
189 fatal("can't open input file");
190 }
191
192 return fd;
193}
194
195
196int
197Process::openOutputFile(const string &filename)
198{
199 int fd = open(filename.c_str(), O_WRONLY | O_CREAT | O_TRUNC, 0664);
200
201 if (fd == -1) {
202 perror(NULL);
203 cerr << "unable to open \"" << filename << "\" for writing\n";
204 fatal("can't open output file");
205 }
206
207 return fd;
208}
209
210ThreadContext *
211Process::findFreeContext()
212{
213 int size = contextIds.size();
214 ThreadContext *tc;
215 for (int i = 0; i < size; ++i) {
216 tc = system->getThreadContext(contextIds[i]);
217 if (tc->status() == ThreadContext::Halted) {
218 // inactive context, free to use
219 return tc;
220 }
221 }
222 return NULL;
223}
224
225void
226Process::initState()
227{
228 if (contextIds.empty())
229 fatal("Process %s is not associated with any HW contexts!\n", name());
230
231 // first thread context for this process... initialize & enable
232 ThreadContext *tc = system->getThreadContext(contextIds[0]);
233
234 // mark this context as active so it will start ticking.
235 tc->activate(0);
236
237 Port *mem_port;
238 mem_port = system->physmem->getPort("functional");
239 initVirtMem = new TranslatingPort("process init port", this,
240 TranslatingPort::Always);
241 mem_port->setPeer(initVirtMem);
242 initVirtMem->setPeer(mem_port);
243}
244
245// map simulator fd sim_fd to target fd tgt_fd
246void
247Process::dup_fd(int sim_fd, int tgt_fd)
248{
249 if (tgt_fd < 0 || tgt_fd > MAX_FD)
250 panic("Process::dup_fd tried to dup past MAX_FD (%d)", tgt_fd);
251
252 Process::FdMap *fdo = &fd_map[tgt_fd];
253 fdo->fd = sim_fd;
254}
255
256
257// generate new target fd for sim_fd
258int
259Process::alloc_fd(int sim_fd, string filename, int flags, int mode, bool pipe)
260{
261 // in case open() returns an error, don't allocate a new fd
262 if (sim_fd == -1)
263 return -1;
264
265 // find first free target fd
266 for (int free_fd = 0; free_fd <= MAX_FD; ++free_fd) {
267 Process::FdMap *fdo = &fd_map[free_fd];
268 if (fdo->fd == -1) {
269 fdo->fd = sim_fd;
270 fdo->filename = filename;
271 fdo->mode = mode;
272 fdo->fileOffset = 0;
273 fdo->flags = flags;
274 fdo->isPipe = pipe;
275 fdo->readPipeSource = 0;
276 return free_fd;
277 }
278 }
279
280 panic("Process::alloc_fd: out of file descriptors!");
281}
282
283
284// free target fd (e.g., after close)
285void
286Process::free_fd(int tgt_fd)
287{
288 Process::FdMap *fdo = &fd_map[tgt_fd];
289 if (fdo->fd == -1)
290 warn("Process::free_fd: request to free unused fd %d", tgt_fd);
291
292 fdo->fd = -1;
293 fdo->filename = "NULL";
294 fdo->mode = 0;
295 fdo->fileOffset = 0;
296 fdo->flags = 0;
297 fdo->isPipe = false;
298 fdo->readPipeSource = 0;
299}
300
301
302// look up simulator fd for given target fd
303int
304Process::sim_fd(int tgt_fd)
305{
306 if (tgt_fd < 0 || tgt_fd > MAX_FD)
307 return -1;
308
309 return fd_map[tgt_fd].fd;
310}
311
312Process::FdMap *
313Process::sim_fd_obj(int tgt_fd)
314{
315 if (tgt_fd < 0 || tgt_fd > MAX_FD)
316 return NULL;
317
318 return &fd_map[tgt_fd];
319}
320
321void
322Process::allocateMem(Addr vaddr, int64_t size, bool clobber)
323{
324 int npages = divCeil(size, (int64_t)VMPageSize);
325 Addr paddr = system->allocPhysPages(npages);
326 pTable->map(vaddr, paddr, size, clobber);
327}
328
329bool
330Process::fixupStackFault(Addr vaddr)
331{
332 // Check if this is already on the stack and there's just no page there
333 // yet.
334 if (vaddr >= stack_min && vaddr < stack_base) {
335 allocateMem(roundDown(vaddr, VMPageSize), VMPageSize);
336 return true;
337 }
338
339 // We've accessed the next page of the stack, so extend it to include
340 // this address.
341 if (vaddr < stack_min && vaddr >= stack_base - max_stack_size) {
342 while (vaddr < stack_min) {
343 stack_min -= TheISA::PageBytes;
344 if (stack_base - stack_min > max_stack_size)
345 fatal("Maximum stack size exceeded\n");
346 if (stack_base - stack_min > 8 * 1024 * 1024)
347 fatal("Over max stack size for one thread\n");
348 allocateMem(stack_min, TheISA::PageBytes);
349 inform("Increasing stack size by one page.");
350 };
351 return true;
352 }
353 warn("Not extending stack: address %#x isn't at the end of the stack.",
354 vaddr);
355 return false;
356}
357
358// find all offsets for currently open files and save them
359void
360Process::fix_file_offsets()
361{
362 Process::FdMap *fdo_stdin = &fd_map[STDIN_FILENO];
363 Process::FdMap *fdo_stdout = &fd_map[STDOUT_FILENO];
364 Process::FdMap *fdo_stderr = &fd_map[STDERR_FILENO];
365 string in = fdo_stdin->filename;
366 string out = fdo_stdout->filename;
367 string err = fdo_stderr->filename;
368
369 // initialize file descriptors to default: same as simulator
370 int stdin_fd, stdout_fd, stderr_fd;
371
372 if (in == "stdin" || in == "cin")
373 stdin_fd = STDIN_FILENO;
374 else if (in == "None")
375 stdin_fd = -1;
376 else {
377 // open standard in and seek to the right location
378 stdin_fd = Process::openInputFile(in);
379 if (lseek(stdin_fd, fdo_stdin->fileOffset, SEEK_SET) < 0)
380 panic("Unable to seek to correct location in file: %s", in);
381 }
382
383 if (out == "stdout" || out == "cout")
384 stdout_fd = STDOUT_FILENO;
385 else if (out == "stderr" || out == "cerr")
386 stdout_fd = STDERR_FILENO;
387 else if (out == "None")
388 stdout_fd = -1;
389 else {
390 stdout_fd = Process::openOutputFile(out);
391 if (lseek(stdout_fd, fdo_stdout->fileOffset, SEEK_SET) < 0)
392 panic("Unable to seek to correct location in file: %s", out);
393 }
394
395 if (err == "stdout" || err == "cout")
396 stderr_fd = STDOUT_FILENO;
397 else if (err == "stderr" || err == "cerr")
398 stderr_fd = STDERR_FILENO;
399 else if (err == "None")
400 stderr_fd = -1;
401 else if (err == out)
402 stderr_fd = stdout_fd;
403 else {
404 stderr_fd = Process::openOutputFile(err);
405 if (lseek(stderr_fd, fdo_stderr->fileOffset, SEEK_SET) < 0)
406 panic("Unable to seek to correct location in file: %s", err);
407 }
408
409 fdo_stdin->fd = stdin_fd;
410 fdo_stdout->fd = stdout_fd;
411 fdo_stderr->fd = stderr_fd;
412
413
414 for (int free_fd = 3; free_fd <= MAX_FD; ++free_fd) {
415 Process::FdMap *fdo = &fd_map[free_fd];
416 if (fdo->fd != -1) {
417 if (fdo->isPipe){
418 if (fdo->filename == "PIPE-WRITE")
419 continue;
420 else {
421 assert (fdo->filename == "PIPE-READ");
422 //create a new pipe
423 int fds[2];
424 int pipe_retval = pipe(fds);
425
426 if (pipe_retval < 0) {
427 // error
428 panic("Unable to create new pipe.");
429 }
430 fdo->fd = fds[0]; //set read pipe
431 Process::FdMap *fdo_write = &fd_map[fdo->readPipeSource];
432 if (fdo_write->filename != "PIPE-WRITE")
433 panic ("Couldn't find write end of the pipe");
434
435 fdo_write->fd = fds[1];//set write pipe
436 }
437 } else {
438 //Open file
439 int fd = open(fdo->filename.c_str(), fdo->flags, fdo->mode);
440
441 if (fd == -1)
442 panic("Unable to open file: %s", fdo->filename);
443 fdo->fd = fd;
444
445 //Seek to correct location before checkpoint
446 if (lseek(fd,fdo->fileOffset, SEEK_SET) < 0)
447 panic("Unable to seek to correct location in file: %s",
448 fdo->filename);
449 }
450 }
451 }
452}
453
454void
455Process::find_file_offsets()
456{
457 for (int free_fd = 0; free_fd <= MAX_FD; ++free_fd) {
458 Process::FdMap *fdo = &fd_map[free_fd];
459 if (fdo->fd != -1) {
460 fdo->fileOffset = lseek(fdo->fd, 0, SEEK_CUR);
461 } else {
462 fdo->filename = "NULL";
463 fdo->fileOffset = 0;
464 }
465 }
466}
467
468void
469Process::setReadPipeSource(int read_pipe_fd, int source_fd)
470{
471 Process::FdMap *fdo = &fd_map[read_pipe_fd];
472 fdo->readPipeSource = source_fd;
473}
474
475void
476Process::FdMap::serialize(std::ostream &os)
477{
478 SERIALIZE_SCALAR(fd);
479 SERIALIZE_SCALAR(isPipe);
480 SERIALIZE_SCALAR(filename);
481 SERIALIZE_SCALAR(flags);
482 SERIALIZE_SCALAR(readPipeSource);
483 SERIALIZE_SCALAR(fileOffset);
484}
485
486void
487Process::FdMap::unserialize(Checkpoint *cp, const std::string &section)
488{
489 UNSERIALIZE_SCALAR(fd);
490 UNSERIALIZE_SCALAR(isPipe);
491 UNSERIALIZE_SCALAR(filename);
492 UNSERIALIZE_SCALAR(flags);
493 UNSERIALIZE_SCALAR(readPipeSource);
494 UNSERIALIZE_SCALAR(fileOffset);
495}
496
497void
498Process::serialize(std::ostream &os)
499{
500 SERIALIZE_SCALAR(brk_point);
501 SERIALIZE_SCALAR(stack_base);
502 SERIALIZE_SCALAR(stack_size);
503 SERIALIZE_SCALAR(stack_min);
504 SERIALIZE_SCALAR(next_thread_stack_base);
505 SERIALIZE_SCALAR(mmap_start);
506 SERIALIZE_SCALAR(mmap_end);
507 SERIALIZE_SCALAR(nxm_start);
508 SERIALIZE_SCALAR(nxm_end);
509 find_file_offsets();
510 pTable->serialize(os);
511 for (int x = 0; x <= MAX_FD; x++) {
512 nameOut(os, csprintf("%s.FdMap%d", name(), x));
513 fd_map[x].serialize(os);
514 }
515 SERIALIZE_SCALAR(M5_pid);
516
517}
518
519void
520Process::unserialize(Checkpoint *cp, const std::string &section)
521{
522 UNSERIALIZE_SCALAR(brk_point);
523 UNSERIALIZE_SCALAR(stack_base);
524 UNSERIALIZE_SCALAR(stack_size);
525 UNSERIALIZE_SCALAR(stack_min);
526 UNSERIALIZE_SCALAR(next_thread_stack_base);
527 UNSERIALIZE_SCALAR(mmap_start);
528 UNSERIALIZE_SCALAR(mmap_end);
529 UNSERIALIZE_SCALAR(nxm_start);
530 UNSERIALIZE_SCALAR(nxm_end);
531 pTable->unserialize(cp, section);
532 for (int x = 0; x <= MAX_FD; x++) {
533 fd_map[x].unserialize(cp, csprintf("%s.FdMap%d", section, x));
534 }
535 fix_file_offsets();
536 UNSERIALIZE_OPT_SCALAR(M5_pid);
537 // The above returns a bool so that you could do something if you don't
538 // find the param in the checkpoint if you wanted to, like set a default
539 // but in this case we'll just stick with the instantianted value if not
540 // found.
541}
542
543
544////////////////////////////////////////////////////////////////////////
545//
546// LiveProcess member definitions
547//
548////////////////////////////////////////////////////////////////////////
549
550
551LiveProcess::LiveProcess(LiveProcessParams * params, ObjectFile *_objFile)
552 : Process(params), objFile(_objFile),
553 argv(params->cmd), envp(params->env), cwd(params->cwd)
554{
555 __uid = params->uid;
556 __euid = params->euid;
557 __gid = params->gid;
558 __egid = params->egid;
559 __pid = params->pid;
560 __ppid = params->ppid;
561
562 prog_fname = params->cmd[0];
563
564 // load up symbols, if any... these may be used for debugging or
565 // profiling.
566 if (!debugSymbolTable) {
567 debugSymbolTable = new SymbolTable();
568 if (!objFile->loadGlobalSymbols(debugSymbolTable) ||
569 !objFile->loadLocalSymbols(debugSymbolTable)) {
570 // didn't load any symbols
571 delete debugSymbolTable;
572 debugSymbolTable = NULL;
573 }
574 }
575}
576
577void
578LiveProcess::syscall(int64_t callnum, ThreadContext *tc)
579{
580 num_syscalls++;
581
582 SyscallDesc *desc = getDesc(callnum);
583 if (desc == NULL)
584 fatal("Syscall %d out of range", callnum);
585
586 desc->doSyscall(callnum, this, tc);
587}
588
589IntReg
590LiveProcess::getSyscallArg(ThreadContext *tc, int &i, int width)
591{
592 return getSyscallArg(tc, i);
593}
594
595LiveProcess *
596LiveProcess::create(LiveProcessParams * params)
597{
598 LiveProcess *process = NULL;
599
600 string executable =
601 params->executable == "" ? params->cmd[0] : params->executable;
602 ObjectFile *objFile = createObjectFile(executable);
603 if (objFile == NULL) {
604 fatal("Can't load object file %s", executable);
605 }
606
607 if (objFile->isDynamic())
608 fatal("Object file is a dynamic executable however only static "
609 "executables are supported!\n Please recompile your "
610 "executable as a static binary and try again.\n");
611
612#if THE_ISA == ALPHA_ISA
613 if (objFile->getArch() != ObjectFile::Alpha)
614 fatal("Object file architecture does not match compiled ISA (Alpha).");
615
616 switch (objFile->getOpSys()) {
617 case ObjectFile::Tru64:
618 process = new AlphaTru64Process(params, objFile);
619 break;
620
621 case ObjectFile::UnknownOpSys:
622 warn("Unknown operating system; assuming Linux.");
623 // fall through
624 case ObjectFile::Linux:
625 process = new AlphaLinuxProcess(params, objFile);
626 break;
627
628 default:
629 fatal("Unknown/unsupported operating system.");
630 }
631#elif THE_ISA == SPARC_ISA
632 if (objFile->getArch() != ObjectFile::SPARC64 &&
633 objFile->getArch() != ObjectFile::SPARC32)
634 fatal("Object file architecture does not match compiled ISA (SPARC).");
635 switch (objFile->getOpSys()) {
636 case ObjectFile::UnknownOpSys:
637 warn("Unknown operating system; assuming Linux.");
638 // fall through
639 case ObjectFile::Linux:
640 if (objFile->getArch() == ObjectFile::SPARC64) {
641 process = new Sparc64LinuxProcess(params, objFile);
642 } else {
643 process = new Sparc32LinuxProcess(params, objFile);
644 }
645 break;
646
647
648 case ObjectFile::Solaris:
649 process = new SparcSolarisProcess(params, objFile);
650 break;
651
652 default:
653 fatal("Unknown/unsupported operating system.");
654 }
655#elif THE_ISA == X86_ISA
656 if (objFile->getArch() != ObjectFile::X86_64 &&
657 objFile->getArch() != ObjectFile::I386)
658 fatal("Object file architecture does not match compiled ISA (x86).");
659 switch (objFile->getOpSys()) {
660 case ObjectFile::UnknownOpSys:
661 warn("Unknown operating system; assuming Linux.");
662 // fall through
663 case ObjectFile::Linux:
664 if (objFile->getArch() == ObjectFile::X86_64) {
665 process = new X86_64LinuxProcess(params, objFile);
666 } else {
667 process = new I386LinuxProcess(params, objFile);
668 }
669 break;
670
671 default:
672 fatal("Unknown/unsupported operating system.");
673 }
674#elif THE_ISA == MIPS_ISA
675 if (objFile->getArch() != ObjectFile::Mips)
676 fatal("Object file architecture does not match compiled ISA (MIPS).");
677 switch (objFile->getOpSys()) {
678 case ObjectFile::UnknownOpSys:
679 warn("Unknown operating system; assuming Linux.");
680 // fall through
681 case ObjectFile::Linux:
682 process = new MipsLinuxProcess(params, objFile);
683 break;
684
685 default:
686 fatal("Unknown/unsupported operating system.");
687 }
688#elif THE_ISA == ARM_ISA
689 if (objFile->getArch() != ObjectFile::Arm &&
690 objFile->getArch() != ObjectFile::Thumb)
691 fatal("Object file architecture does not match compiled ISA (ARM).");
692 switch (objFile->getOpSys()) {
693 case ObjectFile::UnknownOpSys:
694 warn("Unknown operating system; assuming Linux.");
695 // fall through
696 case ObjectFile::Linux:
697 process = new ArmLinuxProcess(params, objFile, objFile->getArch());
698 break;
699 case ObjectFile::LinuxArmOABI:
700 fatal("M5 does not support ARM OABI binaries. Please recompile with an"
701 " EABI compiler.");
702 default:
703 fatal("Unknown/unsupported operating system.");
704 }
705#elif THE_ISA == POWER_ISA
706 if (objFile->getArch() != ObjectFile::Power)
707 fatal("Object file architecture does not match compiled ISA (Power).");
708 switch (objFile->getOpSys()) {
709 case ObjectFile::UnknownOpSys:
710 warn("Unknown operating system; assuming Linux.");
711 // fall through
712 case ObjectFile::Linux:
713 process = new PowerLinuxProcess(params, objFile);
714 break;
715
716 default:
717 fatal("Unknown/unsupported operating system.");
718 }
719#else
720#error "THE_ISA not set"
721#endif
722
723 if (process == NULL)
724 fatal("Unknown error creating process object.");
725 return process;
726}
727
728LiveProcess *
729LiveProcessParams::create()
730{
731 return LiveProcess::create(this);
732}
353 return false;
354}
355
356// find all offsets for currently open files and save them
357void
358Process::fix_file_offsets()
359{
360 Process::FdMap *fdo_stdin = &fd_map[STDIN_FILENO];
361 Process::FdMap *fdo_stdout = &fd_map[STDOUT_FILENO];
362 Process::FdMap *fdo_stderr = &fd_map[STDERR_FILENO];
363 string in = fdo_stdin->filename;
364 string out = fdo_stdout->filename;
365 string err = fdo_stderr->filename;
366
367 // initialize file descriptors to default: same as simulator
368 int stdin_fd, stdout_fd, stderr_fd;
369
370 if (in == "stdin" || in == "cin")
371 stdin_fd = STDIN_FILENO;
372 else if (in == "None")
373 stdin_fd = -1;
374 else {
375 // open standard in and seek to the right location
376 stdin_fd = Process::openInputFile(in);
377 if (lseek(stdin_fd, fdo_stdin->fileOffset, SEEK_SET) < 0)
378 panic("Unable to seek to correct location in file: %s", in);
379 }
380
381 if (out == "stdout" || out == "cout")
382 stdout_fd = STDOUT_FILENO;
383 else if (out == "stderr" || out == "cerr")
384 stdout_fd = STDERR_FILENO;
385 else if (out == "None")
386 stdout_fd = -1;
387 else {
388 stdout_fd = Process::openOutputFile(out);
389 if (lseek(stdout_fd, fdo_stdout->fileOffset, SEEK_SET) < 0)
390 panic("Unable to seek to correct location in file: %s", out);
391 }
392
393 if (err == "stdout" || err == "cout")
394 stderr_fd = STDOUT_FILENO;
395 else if (err == "stderr" || err == "cerr")
396 stderr_fd = STDERR_FILENO;
397 else if (err == "None")
398 stderr_fd = -1;
399 else if (err == out)
400 stderr_fd = stdout_fd;
401 else {
402 stderr_fd = Process::openOutputFile(err);
403 if (lseek(stderr_fd, fdo_stderr->fileOffset, SEEK_SET) < 0)
404 panic("Unable to seek to correct location in file: %s", err);
405 }
406
407 fdo_stdin->fd = stdin_fd;
408 fdo_stdout->fd = stdout_fd;
409 fdo_stderr->fd = stderr_fd;
410
411
412 for (int free_fd = 3; free_fd <= MAX_FD; ++free_fd) {
413 Process::FdMap *fdo = &fd_map[free_fd];
414 if (fdo->fd != -1) {
415 if (fdo->isPipe){
416 if (fdo->filename == "PIPE-WRITE")
417 continue;
418 else {
419 assert (fdo->filename == "PIPE-READ");
420 //create a new pipe
421 int fds[2];
422 int pipe_retval = pipe(fds);
423
424 if (pipe_retval < 0) {
425 // error
426 panic("Unable to create new pipe.");
427 }
428 fdo->fd = fds[0]; //set read pipe
429 Process::FdMap *fdo_write = &fd_map[fdo->readPipeSource];
430 if (fdo_write->filename != "PIPE-WRITE")
431 panic ("Couldn't find write end of the pipe");
432
433 fdo_write->fd = fds[1];//set write pipe
434 }
435 } else {
436 //Open file
437 int fd = open(fdo->filename.c_str(), fdo->flags, fdo->mode);
438
439 if (fd == -1)
440 panic("Unable to open file: %s", fdo->filename);
441 fdo->fd = fd;
442
443 //Seek to correct location before checkpoint
444 if (lseek(fd,fdo->fileOffset, SEEK_SET) < 0)
445 panic("Unable to seek to correct location in file: %s",
446 fdo->filename);
447 }
448 }
449 }
450}
451
452void
453Process::find_file_offsets()
454{
455 for (int free_fd = 0; free_fd <= MAX_FD; ++free_fd) {
456 Process::FdMap *fdo = &fd_map[free_fd];
457 if (fdo->fd != -1) {
458 fdo->fileOffset = lseek(fdo->fd, 0, SEEK_CUR);
459 } else {
460 fdo->filename = "NULL";
461 fdo->fileOffset = 0;
462 }
463 }
464}
465
466void
467Process::setReadPipeSource(int read_pipe_fd, int source_fd)
468{
469 Process::FdMap *fdo = &fd_map[read_pipe_fd];
470 fdo->readPipeSource = source_fd;
471}
472
473void
474Process::FdMap::serialize(std::ostream &os)
475{
476 SERIALIZE_SCALAR(fd);
477 SERIALIZE_SCALAR(isPipe);
478 SERIALIZE_SCALAR(filename);
479 SERIALIZE_SCALAR(flags);
480 SERIALIZE_SCALAR(readPipeSource);
481 SERIALIZE_SCALAR(fileOffset);
482}
483
484void
485Process::FdMap::unserialize(Checkpoint *cp, const std::string &section)
486{
487 UNSERIALIZE_SCALAR(fd);
488 UNSERIALIZE_SCALAR(isPipe);
489 UNSERIALIZE_SCALAR(filename);
490 UNSERIALIZE_SCALAR(flags);
491 UNSERIALIZE_SCALAR(readPipeSource);
492 UNSERIALIZE_SCALAR(fileOffset);
493}
494
495void
496Process::serialize(std::ostream &os)
497{
498 SERIALIZE_SCALAR(brk_point);
499 SERIALIZE_SCALAR(stack_base);
500 SERIALIZE_SCALAR(stack_size);
501 SERIALIZE_SCALAR(stack_min);
502 SERIALIZE_SCALAR(next_thread_stack_base);
503 SERIALIZE_SCALAR(mmap_start);
504 SERIALIZE_SCALAR(mmap_end);
505 SERIALIZE_SCALAR(nxm_start);
506 SERIALIZE_SCALAR(nxm_end);
507 find_file_offsets();
508 pTable->serialize(os);
509 for (int x = 0; x <= MAX_FD; x++) {
510 nameOut(os, csprintf("%s.FdMap%d", name(), x));
511 fd_map[x].serialize(os);
512 }
513 SERIALIZE_SCALAR(M5_pid);
514
515}
516
517void
518Process::unserialize(Checkpoint *cp, const std::string &section)
519{
520 UNSERIALIZE_SCALAR(brk_point);
521 UNSERIALIZE_SCALAR(stack_base);
522 UNSERIALIZE_SCALAR(stack_size);
523 UNSERIALIZE_SCALAR(stack_min);
524 UNSERIALIZE_SCALAR(next_thread_stack_base);
525 UNSERIALIZE_SCALAR(mmap_start);
526 UNSERIALIZE_SCALAR(mmap_end);
527 UNSERIALIZE_SCALAR(nxm_start);
528 UNSERIALIZE_SCALAR(nxm_end);
529 pTable->unserialize(cp, section);
530 for (int x = 0; x <= MAX_FD; x++) {
531 fd_map[x].unserialize(cp, csprintf("%s.FdMap%d", section, x));
532 }
533 fix_file_offsets();
534 UNSERIALIZE_OPT_SCALAR(M5_pid);
535 // The above returns a bool so that you could do something if you don't
536 // find the param in the checkpoint if you wanted to, like set a default
537 // but in this case we'll just stick with the instantianted value if not
538 // found.
539}
540
541
542////////////////////////////////////////////////////////////////////////
543//
544// LiveProcess member definitions
545//
546////////////////////////////////////////////////////////////////////////
547
548
549LiveProcess::LiveProcess(LiveProcessParams * params, ObjectFile *_objFile)
550 : Process(params), objFile(_objFile),
551 argv(params->cmd), envp(params->env), cwd(params->cwd)
552{
553 __uid = params->uid;
554 __euid = params->euid;
555 __gid = params->gid;
556 __egid = params->egid;
557 __pid = params->pid;
558 __ppid = params->ppid;
559
560 prog_fname = params->cmd[0];
561
562 // load up symbols, if any... these may be used for debugging or
563 // profiling.
564 if (!debugSymbolTable) {
565 debugSymbolTable = new SymbolTable();
566 if (!objFile->loadGlobalSymbols(debugSymbolTable) ||
567 !objFile->loadLocalSymbols(debugSymbolTable)) {
568 // didn't load any symbols
569 delete debugSymbolTable;
570 debugSymbolTable = NULL;
571 }
572 }
573}
574
575void
576LiveProcess::syscall(int64_t callnum, ThreadContext *tc)
577{
578 num_syscalls++;
579
580 SyscallDesc *desc = getDesc(callnum);
581 if (desc == NULL)
582 fatal("Syscall %d out of range", callnum);
583
584 desc->doSyscall(callnum, this, tc);
585}
586
587IntReg
588LiveProcess::getSyscallArg(ThreadContext *tc, int &i, int width)
589{
590 return getSyscallArg(tc, i);
591}
592
593LiveProcess *
594LiveProcess::create(LiveProcessParams * params)
595{
596 LiveProcess *process = NULL;
597
598 string executable =
599 params->executable == "" ? params->cmd[0] : params->executable;
600 ObjectFile *objFile = createObjectFile(executable);
601 if (objFile == NULL) {
602 fatal("Can't load object file %s", executable);
603 }
604
605 if (objFile->isDynamic())
606 fatal("Object file is a dynamic executable however only static "
607 "executables are supported!\n Please recompile your "
608 "executable as a static binary and try again.\n");
609
610#if THE_ISA == ALPHA_ISA
611 if (objFile->getArch() != ObjectFile::Alpha)
612 fatal("Object file architecture does not match compiled ISA (Alpha).");
613
614 switch (objFile->getOpSys()) {
615 case ObjectFile::Tru64:
616 process = new AlphaTru64Process(params, objFile);
617 break;
618
619 case ObjectFile::UnknownOpSys:
620 warn("Unknown operating system; assuming Linux.");
621 // fall through
622 case ObjectFile::Linux:
623 process = new AlphaLinuxProcess(params, objFile);
624 break;
625
626 default:
627 fatal("Unknown/unsupported operating system.");
628 }
629#elif THE_ISA == SPARC_ISA
630 if (objFile->getArch() != ObjectFile::SPARC64 &&
631 objFile->getArch() != ObjectFile::SPARC32)
632 fatal("Object file architecture does not match compiled ISA (SPARC).");
633 switch (objFile->getOpSys()) {
634 case ObjectFile::UnknownOpSys:
635 warn("Unknown operating system; assuming Linux.");
636 // fall through
637 case ObjectFile::Linux:
638 if (objFile->getArch() == ObjectFile::SPARC64) {
639 process = new Sparc64LinuxProcess(params, objFile);
640 } else {
641 process = new Sparc32LinuxProcess(params, objFile);
642 }
643 break;
644
645
646 case ObjectFile::Solaris:
647 process = new SparcSolarisProcess(params, objFile);
648 break;
649
650 default:
651 fatal("Unknown/unsupported operating system.");
652 }
653#elif THE_ISA == X86_ISA
654 if (objFile->getArch() != ObjectFile::X86_64 &&
655 objFile->getArch() != ObjectFile::I386)
656 fatal("Object file architecture does not match compiled ISA (x86).");
657 switch (objFile->getOpSys()) {
658 case ObjectFile::UnknownOpSys:
659 warn("Unknown operating system; assuming Linux.");
660 // fall through
661 case ObjectFile::Linux:
662 if (objFile->getArch() == ObjectFile::X86_64) {
663 process = new X86_64LinuxProcess(params, objFile);
664 } else {
665 process = new I386LinuxProcess(params, objFile);
666 }
667 break;
668
669 default:
670 fatal("Unknown/unsupported operating system.");
671 }
672#elif THE_ISA == MIPS_ISA
673 if (objFile->getArch() != ObjectFile::Mips)
674 fatal("Object file architecture does not match compiled ISA (MIPS).");
675 switch (objFile->getOpSys()) {
676 case ObjectFile::UnknownOpSys:
677 warn("Unknown operating system; assuming Linux.");
678 // fall through
679 case ObjectFile::Linux:
680 process = new MipsLinuxProcess(params, objFile);
681 break;
682
683 default:
684 fatal("Unknown/unsupported operating system.");
685 }
686#elif THE_ISA == ARM_ISA
687 if (objFile->getArch() != ObjectFile::Arm &&
688 objFile->getArch() != ObjectFile::Thumb)
689 fatal("Object file architecture does not match compiled ISA (ARM).");
690 switch (objFile->getOpSys()) {
691 case ObjectFile::UnknownOpSys:
692 warn("Unknown operating system; assuming Linux.");
693 // fall through
694 case ObjectFile::Linux:
695 process = new ArmLinuxProcess(params, objFile, objFile->getArch());
696 break;
697 case ObjectFile::LinuxArmOABI:
698 fatal("M5 does not support ARM OABI binaries. Please recompile with an"
699 " EABI compiler.");
700 default:
701 fatal("Unknown/unsupported operating system.");
702 }
703#elif THE_ISA == POWER_ISA
704 if (objFile->getArch() != ObjectFile::Power)
705 fatal("Object file architecture does not match compiled ISA (Power).");
706 switch (objFile->getOpSys()) {
707 case ObjectFile::UnknownOpSys:
708 warn("Unknown operating system; assuming Linux.");
709 // fall through
710 case ObjectFile::Linux:
711 process = new PowerLinuxProcess(params, objFile);
712 break;
713
714 default:
715 fatal("Unknown/unsupported operating system.");
716 }
717#else
718#error "THE_ISA not set"
719#endif
720
721 if (process == NULL)
722 fatal("Unknown error creating process object.");
723 return process;
724}
725
726LiveProcess *
727LiveProcessParams::create()
728{
729 return LiveProcess::create(this);
730}