1 |
/* |
/* |
2 |
* Copyright (C) 2003-2005 Anders Gavare. All rights reserved. |
* Copyright (C) 2003-2006 Anders Gavare. All rights reserved. |
3 |
* |
* |
4 |
* Redistribution and use in source and binary forms, with or without |
* Redistribution and use in source and binary forms, with or without |
5 |
* modification, are permitted provided that the following conditions are met: |
* modification, are permitted provided that the following conditions are met: |
25 |
* SUCH DAMAGE. |
* SUCH DAMAGE. |
26 |
* |
* |
27 |
* |
* |
28 |
* $Id: emul.c,v 1.179 2005/03/14 19:14:04 debug Exp $ |
* $Id: emul.c,v 1.258 2006/07/20 21:52:59 debug Exp $ |
29 |
* |
* |
30 |
* Emulation startup and misc. routines. |
* Emulation startup and misc. routines. |
31 |
*/ |
*/ |
39 |
#include <unistd.h> |
#include <unistd.h> |
40 |
|
|
41 |
#include "arcbios.h" |
#include "arcbios.h" |
|
#include "bintrans.h" |
|
42 |
#include "cpu.h" |
#include "cpu.h" |
|
#include "cpu_mips.h" |
|
43 |
#include "emul.h" |
#include "emul.h" |
44 |
#include "console.h" |
#include "console.h" |
45 |
#include "debugger.h" |
#include "debugger.h" |
46 |
#include "device.h" |
#include "device.h" |
47 |
#include "diskimage.h" |
#include "diskimage.h" |
48 |
|
#include "exec_elf.h" |
49 |
#include "machine.h" |
#include "machine.h" |
50 |
#include "memory.h" |
#include "memory.h" |
51 |
#include "mips_cpu_types.h" |
#include "mips_cpu_types.h" |
55 |
#include "x11.h" |
#include "x11.h" |
56 |
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|
57 |
|
|
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extern int force_debugger_at_exit; |
|
|
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|
58 |
extern int extra_argc; |
extern int extra_argc; |
59 |
extern char **extra_argv; |
extern char **extra_argv; |
60 |
|
|
61 |
extern int verbose; |
extern int verbose; |
62 |
extern int quiet_mode; |
extern int quiet_mode; |
63 |
|
extern int force_debugger_at_exit; |
64 |
|
extern int single_step; |
65 |
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extern int old_show_trace_tree; |
66 |
|
extern int old_instruction_trace; |
67 |
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extern int old_quiet_mode; |
68 |
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extern int quiet_mode; |
69 |
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|
70 |
extern struct emul *debugger_emul; |
extern struct emul *debugger_emul; |
71 |
extern struct diskimage *diskimages[]; |
extern struct diskimage *diskimages[]; |
72 |
|
|
73 |
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static char *diskimage_types[] = DISKIMAGE_TYPES; |
74 |
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|
75 |
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|
76 |
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static void print_separator(void) |
77 |
|
{ |
78 |
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int i = 79; |
79 |
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while (i-- > 0) |
80 |
|
debug("-"); |
81 |
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debug("\n"); |
82 |
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} |
83 |
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|
84 |
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|
85 |
/* |
/* |
86 |
* add_dump_points(): |
* add_dump_points(): |
108 |
uint64_t addr; |
uint64_t addr; |
109 |
int res = get_symbol_addr(&m->symbol_context, |
int res = get_symbol_addr(&m->symbol_context, |
110 |
m->breakpoint_string[i], &addr); |
m->breakpoint_string[i], &addr); |
111 |
if (!res) |
if (!res) { |
112 |
fprintf(stderr, |
fprintf(stderr, |
113 |
"WARNING! Breakpoint '%s' could not be" |
"ERROR! Breakpoint '%s' could not be" |
114 |
" parsed\n", |
" parsed\n", |
115 |
m->breakpoint_string[i]); |
m->breakpoint_string[i]); |
116 |
else { |
} else { |
117 |
dp = addr; |
dp = addr; |
118 |
string_flag = 1; |
string_flag = 1; |
119 |
} |
} |
124 |
* were automatically converted into the correct address. |
* were automatically converted into the correct address. |
125 |
*/ |
*/ |
126 |
|
|
127 |
if ((dp >> 32) == 0 && ((dp >> 31) & 1)) |
if (m->arch == ARCH_MIPS) { |
128 |
dp |= 0xffffffff00000000ULL; |
if ((dp >> 32) == 0 && ((dp >> 31) & 1)) |
129 |
|
dp |= 0xffffffff00000000ULL; |
130 |
|
} |
131 |
|
|
132 |
m->breakpoint_addr[i] = dp; |
m->breakpoint_addr[i] = dp; |
133 |
|
|
134 |
debug("breakpoint %i: 0x%016llx", i, (long long)dp); |
debug("breakpoint %i: 0x%llx", i, (long long)dp); |
135 |
if (string_flag) |
if (string_flag) |
136 |
debug(" (%s)", m->breakpoint_string[i]); |
debug(" (%s)", m->breakpoint_string[i]); |
137 |
debug("\n"); |
debug("\n"); |
149 |
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|
150 |
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|
151 |
/* |
/* |
152 |
|
* iso_load_bootblock(): |
153 |
|
* |
154 |
|
* Try to load a kernel from an ISO 9660 disk image. iso_type is 1 for |
155 |
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* "CD001" (standard), 2 for "CDW01" (ECMA), and 3 for "CDROM" (Sierra). |
156 |
|
* |
157 |
|
* TODO: This function uses too many magic offsets and so on; it should be |
158 |
|
* cleaned up some day. |
159 |
|
* |
160 |
|
* Returns 1 on success, 0 on failure. |
161 |
|
*/ |
162 |
|
static int iso_load_bootblock(struct machine *m, struct cpu *cpu, |
163 |
|
int disk_id, int disk_type, int iso_type, unsigned char *buf, |
164 |
|
int *n_loadp, char ***load_namesp) |
165 |
|
{ |
166 |
|
char str[35]; |
167 |
|
int filenr, i, ofs, dirlen, res = 0, res2, iadd = DEBUG_INDENTATION; |
168 |
|
int found_dir; |
169 |
|
uint64_t dirofs; |
170 |
|
uint64_t fileofs, filelen; |
171 |
|
unsigned char *dirbuf = NULL, *dp; |
172 |
|
unsigned char *match_entry = NULL; |
173 |
|
char *p, *filename_orig; |
174 |
|
char *filename = strdup(cpu->machine->boot_kernel_filename); |
175 |
|
unsigned char *filebuf = NULL; |
176 |
|
char *tmpfname = NULL; |
177 |
|
char **new_array; |
178 |
|
int tmpfile_handle; |
179 |
|
|
180 |
|
if (filename == NULL) { |
181 |
|
fatal("out of memory\n"); |
182 |
|
exit(1); |
183 |
|
} |
184 |
|
filename_orig = filename; |
185 |
|
|
186 |
|
debug("ISO9660 boot:\n"); |
187 |
|
debug_indentation(iadd); |
188 |
|
|
189 |
|
/* Volume ID: */ |
190 |
|
ofs = iso_type == 3? 48 : 40; |
191 |
|
memcpy(str, buf + ofs, sizeof(str)); |
192 |
|
str[32] = '\0'; i = 31; |
193 |
|
while (i >= 0 && str[i]==' ') |
194 |
|
str[i--] = '\0'; |
195 |
|
if (str[0]) |
196 |
|
debug("\"%s\"", str); |
197 |
|
else { |
198 |
|
/* System ID: */ |
199 |
|
ofs = iso_type == 3? 16 : 8; |
200 |
|
memcpy(str, buf + ofs, sizeof(str)); |
201 |
|
str[32] = '\0'; i = 31; |
202 |
|
while (i >= 0 && str[i]==' ') |
203 |
|
str[i--] = '\0'; |
204 |
|
if (str[0]) |
205 |
|
debug("\"%s\"", str); |
206 |
|
else |
207 |
|
debug("(no ID)"); |
208 |
|
} |
209 |
|
|
210 |
|
debug(":%s\n", filename); |
211 |
|
|
212 |
|
|
213 |
|
/* |
214 |
|
* Traverse the directory structure to find the kernel. |
215 |
|
*/ |
216 |
|
|
217 |
|
dirlen = buf[0x84] + 256*buf[0x85] + 65536*buf[0x86]; |
218 |
|
if (dirlen != buf[0x8b] + 256*buf[0x8a] + 65536*buf[0x89]) |
219 |
|
fatal("WARNING: Root directory length mismatch?\n"); |
220 |
|
|
221 |
|
dirofs = (int64_t)(buf[0x8c] + (buf[0x8d] << 8) + (buf[0x8e] << 16) + |
222 |
|
((uint64_t)buf[0x8f] << 24)) * 2048; |
223 |
|
|
224 |
|
/* debug("root = %i bytes at 0x%llx\n", dirlen, (long long)dirofs); */ |
225 |
|
|
226 |
|
dirbuf = malloc(dirlen); |
227 |
|
if (dirbuf == NULL) { |
228 |
|
fatal("out of memory in iso_load_bootblock()\n"); |
229 |
|
exit(1); |
230 |
|
} |
231 |
|
|
232 |
|
res2 = diskimage_access(m, disk_id, disk_type, 0, dirofs, dirbuf, |
233 |
|
dirlen); |
234 |
|
if (!res2) { |
235 |
|
fatal("Couldn't read the disk image. Aborting.\n"); |
236 |
|
goto ret; |
237 |
|
} |
238 |
|
|
239 |
|
found_dir = 1; /* Assume root dir */ |
240 |
|
dp = dirbuf; filenr = 1; |
241 |
|
p = NULL; |
242 |
|
while (dp < dirbuf + dirlen) { |
243 |
|
size_t i, nlen = dp[0]; |
244 |
|
int x = dp[2] + (dp[3] << 8) + (dp[4] << 16) + |
245 |
|
((uint64_t)dp[5] << 24); |
246 |
|
int y = dp[6] + (dp[7] << 8); |
247 |
|
char direntry[65]; |
248 |
|
|
249 |
|
dp += 8; |
250 |
|
|
251 |
|
/* |
252 |
|
* As long as there is an \ or / in the filename, then we |
253 |
|
* have not yet found the directory. |
254 |
|
*/ |
255 |
|
p = strchr(filename, '/'); |
256 |
|
if (p == NULL) |
257 |
|
p = strchr(filename, '\\'); |
258 |
|
|
259 |
|
/* debug("%i%s: %i, %i, \"", filenr, filenr == found_dir? |
260 |
|
" [CURRENT]" : "", x, y); */ |
261 |
|
for (i=0; i<nlen && i<sizeof(direntry)-1; i++) |
262 |
|
if (dp[i]) { |
263 |
|
direntry[i] = dp[i]; |
264 |
|
/* debug("%c", dp[i]); */ |
265 |
|
} else |
266 |
|
break; |
267 |
|
/* debug("\"\n"); */ |
268 |
|
direntry[i] = '\0'; |
269 |
|
|
270 |
|
/* A directory name match? */ |
271 |
|
if (p != NULL && strncasecmp(filename, direntry, nlen) == 0 |
272 |
|
&& nlen == (size_t)p - (size_t)filename && found_dir == y) { |
273 |
|
found_dir = filenr; |
274 |
|
filename = p+1; |
275 |
|
dirofs = 2048 * (int64_t)x; |
276 |
|
} |
277 |
|
|
278 |
|
dp += nlen; |
279 |
|
|
280 |
|
/* 16-bit aligned lenght: */ |
281 |
|
if (nlen & 1) |
282 |
|
dp ++; |
283 |
|
|
284 |
|
filenr ++; |
285 |
|
} |
286 |
|
|
287 |
|
p = strchr(filename, '/'); |
288 |
|
if (p == NULL) |
289 |
|
p = strchr(filename, '\\'); |
290 |
|
|
291 |
|
if (p != NULL) { |
292 |
|
char *blah = filename_orig; |
293 |
|
|
294 |
|
fatal("could not find '%s' in /", filename); |
295 |
|
|
296 |
|
/* Print the first part of the filename: */ |
297 |
|
while (blah != filename) |
298 |
|
fatal("%c", *blah++); |
299 |
|
|
300 |
|
fatal("\n"); |
301 |
|
goto ret; |
302 |
|
} |
303 |
|
|
304 |
|
/* debug("dirofs = 0x%llx\n", (long long)dirofs); */ |
305 |
|
|
306 |
|
/* Free the old dirbuf, and allocate a new one: */ |
307 |
|
free(dirbuf); |
308 |
|
dirbuf = malloc(512); |
309 |
|
if (dirbuf == NULL) { |
310 |
|
fatal("out of memory in iso_load_bootblock()\n"); |
311 |
|
exit(1); |
312 |
|
} |
313 |
|
|
314 |
|
for (;;) { |
315 |
|
size_t len, i; |
316 |
|
|
317 |
|
/* Too close to another sector? Then realign. */ |
318 |
|
if ((dirofs & 2047) + 70 > 2047) { |
319 |
|
dirofs = (dirofs | 2047) + 1; |
320 |
|
/* debug("realign dirofs = 0x%llx\n", dirofs); */ |
321 |
|
} |
322 |
|
|
323 |
|
res2 = diskimage_access(m, disk_id, disk_type, 0, dirofs, |
324 |
|
dirbuf, 256); |
325 |
|
if (!res2) { |
326 |
|
fatal("Couldn't read the disk image. Aborting.\n"); |
327 |
|
goto ret; |
328 |
|
} |
329 |
|
|
330 |
|
dp = dirbuf; |
331 |
|
len = dp[0]; |
332 |
|
if (len < 2) |
333 |
|
break; |
334 |
|
|
335 |
|
/* |
336 |
|
* TODO: Actually parse the directory entry! |
337 |
|
* |
338 |
|
* Haha, this must be rewritten. |
339 |
|
*/ |
340 |
|
for (i=32; i<len; i++) { |
341 |
|
if (i < len - strlen(filename)) |
342 |
|
if (strncasecmp(filename, (char *)dp + i, |
343 |
|
strlen(filename)) == 0) { |
344 |
|
/* The filename was found somewhere |
345 |
|
in the directory entry. */ |
346 |
|
if (match_entry != NULL) { |
347 |
|
fatal("TODO: I'm too lazy to" |
348 |
|
" implement a correct " |
349 |
|
"directory parser right " |
350 |
|
"now... (BUG)\n"); |
351 |
|
exit(1); |
352 |
|
} |
353 |
|
match_entry = malloc(512); |
354 |
|
if (match_entry == NULL) { |
355 |
|
fatal("out of memory\n"); |
356 |
|
exit(1); |
357 |
|
} |
358 |
|
memcpy(match_entry, dp, 512); |
359 |
|
break; |
360 |
|
} |
361 |
|
} |
362 |
|
|
363 |
|
dirofs += len; |
364 |
|
} |
365 |
|
|
366 |
|
if (match_entry == NULL) { |
367 |
|
char *blah = filename_orig; |
368 |
|
|
369 |
|
fatal("could not find '%s' in /", filename); |
370 |
|
|
371 |
|
/* Print the first part of the filename: */ |
372 |
|
while (blah != filename) |
373 |
|
fatal("%c", *blah++); |
374 |
|
|
375 |
|
fatal("\n"); |
376 |
|
goto ret; |
377 |
|
} |
378 |
|
|
379 |
|
fileofs = match_entry[2] + (match_entry[3] << 8) + |
380 |
|
(match_entry[4] << 16) + ((uint64_t)match_entry[5] << 24); |
381 |
|
filelen = match_entry[10] + (match_entry[11] << 8) + |
382 |
|
(match_entry[12] << 16) + ((uint64_t)match_entry[13] << 24); |
383 |
|
fileofs *= 2048; |
384 |
|
|
385 |
|
/* debug("filelen=%llx fileofs=%llx\n", (long long)filelen, |
386 |
|
(long long)fileofs); */ |
387 |
|
|
388 |
|
filebuf = malloc(filelen); |
389 |
|
if (filebuf == NULL) { |
390 |
|
fatal("could not allocate %lli bytes to read the file" |
391 |
|
" from the disk image!\n", (long long)filelen); |
392 |
|
goto ret; |
393 |
|
} |
394 |
|
|
395 |
|
tmpfname = strdup("/tmp/gxemul.XXXXXXXXXXXX"); |
396 |
|
|
397 |
|
res2 = diskimage_access(m, disk_id, disk_type, 0, fileofs, filebuf, |
398 |
|
filelen); |
399 |
|
if (!res2) { |
400 |
|
fatal("could not read the file from the disk image!\n"); |
401 |
|
goto ret; |
402 |
|
} |
403 |
|
|
404 |
|
tmpfile_handle = mkstemp(tmpfname); |
405 |
|
if (tmpfile_handle < 0) { |
406 |
|
fatal("could not create %s\n", tmpfname); |
407 |
|
exit(1); |
408 |
|
} |
409 |
|
write(tmpfile_handle, filebuf, filelen); |
410 |
|
close(tmpfile_handle); |
411 |
|
|
412 |
|
debug("extracted %lli bytes into %s\n", (long long)filelen, tmpfname); |
413 |
|
|
414 |
|
/* Add the temporary filename to the load_namesp array: */ |
415 |
|
(*n_loadp)++; |
416 |
|
new_array = malloc(sizeof(char *) * (*n_loadp)); |
417 |
|
if (new_array == NULL) { |
418 |
|
fatal("out of memory\n"); |
419 |
|
exit(1); |
420 |
|
} |
421 |
|
memcpy(new_array, *load_namesp, sizeof(char *) * (*n_loadp)); |
422 |
|
*load_namesp = new_array; |
423 |
|
|
424 |
|
/* This adds a Backspace char in front of the filename; this |
425 |
|
is a special hack which causes the file to be removed once |
426 |
|
it has been loaded. */ |
427 |
|
tmpfname = realloc(tmpfname, strlen(tmpfname) + 2); |
428 |
|
memmove(tmpfname + 1, tmpfname, strlen(tmpfname) + 1); |
429 |
|
tmpfname[0] = 8; |
430 |
|
|
431 |
|
(*load_namesp)[*n_loadp - 1] = tmpfname; |
432 |
|
|
433 |
|
res = 1; |
434 |
|
|
435 |
|
ret: |
436 |
|
if (dirbuf != NULL) |
437 |
|
free(dirbuf); |
438 |
|
|
439 |
|
if (filebuf != NULL) |
440 |
|
free(filebuf); |
441 |
|
|
442 |
|
if (match_entry != NULL) |
443 |
|
free(match_entry); |
444 |
|
|
445 |
|
free(filename_orig); |
446 |
|
|
447 |
|
debug_indentation(-iadd); |
448 |
|
return res; |
449 |
|
} |
450 |
|
|
451 |
|
|
452 |
|
/* |
453 |
|
* apple_load_bootblock(): |
454 |
|
* |
455 |
|
* Try to load a kernel from a disk image with an Apple Partition Table. |
456 |
|
* |
457 |
|
* TODO: This function uses too many magic offsets and so on; it should be |
458 |
|
* cleaned up some day. See http://www.awprofessional.com/articles/ |
459 |
|
* article.asp?p=376123&seqNum=3&rl=1 for some info on the Apple |
460 |
|
* partition format. |
461 |
|
* |
462 |
|
* Returns 1 on success, 0 on failure. |
463 |
|
*/ |
464 |
|
static int apple_load_bootblock(struct machine *m, struct cpu *cpu, |
465 |
|
int disk_id, int disk_type, int *n_loadp, char ***load_namesp) |
466 |
|
{ |
467 |
|
unsigned char buf[0x8000]; |
468 |
|
int res, partnr, n_partitions = 0, n_hfs_partitions = 0; |
469 |
|
uint64_t hfs_start, hfs_length; |
470 |
|
|
471 |
|
res = diskimage_access(m, disk_id, disk_type, 0, 0x0, buf, sizeof(buf)); |
472 |
|
if (!res) { |
473 |
|
fatal("apple_load_bootblock: couldn't read the disk " |
474 |
|
"image. Aborting.\n"); |
475 |
|
return 0; |
476 |
|
} |
477 |
|
|
478 |
|
partnr = 0; |
479 |
|
do { |
480 |
|
int start, length; |
481 |
|
int ofs = 0x200 * (partnr + 1); |
482 |
|
if (partnr == 0) |
483 |
|
n_partitions = buf[ofs + 7]; |
484 |
|
start = ((uint64_t)buf[ofs + 8] << 24) + (buf[ofs + 9] << 16) + |
485 |
|
(buf[ofs + 10] << 8) + buf[ofs + 11]; |
486 |
|
length = ((uint64_t)buf[ofs+12] << 24) + (buf[ofs + 13] << 16) + |
487 |
|
(buf[ofs + 14] << 8) + buf[ofs + 15]; |
488 |
|
|
489 |
|
debug("partition %i: '%s', type '%s', start %i, length %i\n", |
490 |
|
partnr, buf + ofs + 0x10, buf + ofs + 0x30, |
491 |
|
start, length); |
492 |
|
|
493 |
|
if (strcmp((char *)buf + ofs + 0x30, "Apple_HFS") == 0) { |
494 |
|
n_hfs_partitions ++; |
495 |
|
hfs_start = 512 * start; |
496 |
|
hfs_length = 512 * length; |
497 |
|
} |
498 |
|
|
499 |
|
/* Any more partitions? */ |
500 |
|
partnr ++; |
501 |
|
} while (partnr < n_partitions); |
502 |
|
|
503 |
|
if (n_hfs_partitions == 0) { |
504 |
|
fatal("Error: No HFS partition found! TODO\n"); |
505 |
|
return 0; |
506 |
|
} |
507 |
|
if (n_hfs_partitions >= 2) { |
508 |
|
fatal("Error: Too many HFS partitions found! TODO\n"); |
509 |
|
return 0; |
510 |
|
} |
511 |
|
|
512 |
|
return 0; |
513 |
|
} |
514 |
|
|
515 |
|
|
516 |
|
/* |
517 |
* load_bootblock(): |
* load_bootblock(): |
518 |
* |
* |
519 |
* For some emulation modes, it is possible to boot from a harddisk image by |
* For some emulation modes, it is possible to boot from a harddisk image by |
520 |
* loading a bootblock from a specific disk offset into memory, and executing |
* loading a bootblock from a specific disk offset into memory, and executing |
521 |
* that, instead of requiring a separate kernel file. It is then up to the |
* that, instead of requiring a separate kernel file. It is then up to the |
522 |
* bootblock to load a kernel. |
* bootblock to load a kernel. |
523 |
|
* |
524 |
|
* Returns 1 on success, 0 on failure. |
525 |
*/ |
*/ |
526 |
static void load_bootblock(struct machine *m, struct cpu *cpu) |
static int load_bootblock(struct machine *m, struct cpu *cpu, |
527 |
|
int *n_loadp, char ***load_namesp) |
528 |
{ |
{ |
529 |
int boot_disk_id; |
int boot_disk_id, boot_disk_type = 0, n_blocks, res, readofs, |
530 |
|
iso_type, retval = 0; |
531 |
unsigned char minibuf[0x20]; |
unsigned char minibuf[0x20]; |
532 |
unsigned char *bootblock_buf; |
unsigned char *bootblock_buf; |
533 |
uint64_t bootblock_offset; |
uint64_t bootblock_offset; |
534 |
uint64_t bootblock_loadaddr, bootblock_pc; |
uint64_t bootblock_loadaddr, bootblock_pc; |
|
int n_blocks, res, readofs; |
|
535 |
|
|
536 |
boot_disk_id = diskimage_bootdev(m); |
boot_disk_id = diskimage_bootdev(m, &boot_disk_type); |
537 |
if (boot_disk_id < 0) |
if (boot_disk_id < 0) |
538 |
return; |
return 0; |
539 |
|
|
540 |
switch (m->machine_type) { |
switch (m->machine_type) { |
541 |
case MACHINE_DEC: |
case MACHINE_PMAX: |
542 |
/* |
/* |
543 |
* The first few bytes of a disk contains information about |
* The first few bytes of a disk contains information about |
544 |
* where the bootblock(s) are located. (These are all 32-bit |
* where the bootblock(s) are located. (These are all 32-bit |
555 |
* nr of blocks to read and offset are repeated until nr of |
* nr of blocks to read and offset are repeated until nr of |
556 |
* blocks to read is zero. |
* blocks to read is zero. |
557 |
*/ |
*/ |
558 |
res = diskimage_access(m, boot_disk_id, 0, 0, |
res = diskimage_access(m, boot_disk_id, boot_disk_type, 0, 0, |
559 |
minibuf, sizeof(minibuf)); |
minibuf, sizeof(minibuf)); |
560 |
|
|
561 |
bootblock_loadaddr = minibuf[0x10] + (minibuf[0x11] << 8) |
bootblock_loadaddr = minibuf[0x10] + (minibuf[0x11] << 8) |
562 |
+ (minibuf[0x12] << 16) + (minibuf[0x13] << 24); |
+ (minibuf[0x12] << 16) + ((uint64_t)minibuf[0x13] << 24); |
563 |
|
|
564 |
/* Convert loadaddr to uncached: */ |
/* Convert loadaddr to uncached: */ |
565 |
if ((bootblock_loadaddr & 0xf0000000ULL) != 0x80000000 && |
if ((bootblock_loadaddr & 0xf0000000ULL) != 0x80000000 && |
570 |
bootblock_loadaddr |= 0xffffffffa0000000ULL; |
bootblock_loadaddr |= 0xffffffffa0000000ULL; |
571 |
|
|
572 |
bootblock_pc = minibuf[0x14] + (minibuf[0x15] << 8) |
bootblock_pc = minibuf[0x14] + (minibuf[0x15] << 8) |
573 |
+ (minibuf[0x16] << 16) + (minibuf[0x17] << 24); |
+ (minibuf[0x16] << 16) + ((uint64_t)minibuf[0x17] << 24); |
574 |
|
|
575 |
bootblock_pc &= 0x0fffffffULL; |
bootblock_pc &= 0x0fffffffULL; |
576 |
bootblock_pc |= 0xffffffffa0000000ULL; |
bootblock_pc |= 0xffffffffa0000000ULL; |
582 |
readofs = 0x18; |
readofs = 0x18; |
583 |
|
|
584 |
for (;;) { |
for (;;) { |
585 |
res = diskimage_access(m, boot_disk_id, 0, readofs, |
res = diskimage_access(m, boot_disk_id, boot_disk_type, |
586 |
minibuf, sizeof(minibuf)); |
0, readofs, minibuf, sizeof(minibuf)); |
587 |
if (!res) { |
if (!res) { |
588 |
printf("couldn't read disk?\n"); |
fatal("Couldn't read the disk image. " |
589 |
exit(1); |
"Aborting.\n"); |
590 |
|
return 0; |
591 |
} |
} |
592 |
|
|
593 |
n_blocks = minibuf[0] + (minibuf[1] << 8) |
n_blocks = minibuf[0] + (minibuf[1] << 8) |
594 |
+ (minibuf[2] << 16) + (minibuf[3] << 24); |
+ (minibuf[2] << 16) + ((uint64_t)minibuf[3] << 24); |
595 |
|
|
596 |
bootblock_offset = (minibuf[4] + (minibuf[5] << 8) |
bootblock_offset = (minibuf[4] + (minibuf[5] << 8) + |
597 |
+ (minibuf[6] << 16) + (minibuf[7] << 24)) * 512; |
(minibuf[6]<<16) + ((uint64_t)minibuf[7]<<24)) * 512; |
598 |
|
|
599 |
if (n_blocks < 1) |
if (n_blocks < 1) |
600 |
break; |
break; |
612 |
exit(1); |
exit(1); |
613 |
} |
} |
614 |
|
|
615 |
res = diskimage_access(m, boot_disk_id, 0, |
res = diskimage_access(m, boot_disk_id, boot_disk_type, |
616 |
bootblock_offset, bootblock_buf, n_blocks * 512); |
0, bootblock_offset, bootblock_buf, n_blocks * 512); |
617 |
if (!res) { |
if (!res) { |
618 |
fatal("WARNING: could not load bootblocks from" |
fatal("WARNING: could not load bootblocks from" |
619 |
" disk offset 0x%llx\n", |
" disk offset 0x%llx\n", |
629 |
} |
} |
630 |
|
|
631 |
debug(readofs == 0x18? ": no blocks?\n" : " blocks\n"); |
debug(readofs == 0x18? ": no blocks?\n" : " blocks\n"); |
632 |
break; |
return 1; |
633 |
default: |
|
634 |
fatal("Booting from disk without a separate kernel " |
case MACHINE_X86: |
635 |
"doesn't work in this emulation mode.\n"); |
/* TODO: "El Torito" etc? */ |
636 |
|
if (diskimage_is_a_cdrom(cpu->machine, boot_disk_id, |
637 |
|
boot_disk_type)) |
638 |
|
break; |
639 |
|
|
640 |
|
bootblock_buf = malloc(512); |
641 |
|
if (bootblock_buf == NULL) { |
642 |
|
fprintf(stderr, "Out of memory.\n"); |
643 |
|
exit(1); |
644 |
|
} |
645 |
|
|
646 |
|
debug("loading PC bootsector from %s id %i\n", |
647 |
|
diskimage_types[boot_disk_type], boot_disk_id); |
648 |
|
|
649 |
|
res = diskimage_access(m, boot_disk_id, boot_disk_type, 0, 0, |
650 |
|
bootblock_buf, 512); |
651 |
|
if (!res) { |
652 |
|
fatal("Couldn't read the disk image. Aborting.\n"); |
653 |
|
return 0; |
654 |
|
} |
655 |
|
|
656 |
|
if (bootblock_buf[510] != 0x55 || bootblock_buf[511] != 0xaa) |
657 |
|
debug("WARNING! The 0x55,0xAA marker is missing! " |
658 |
|
"Booting anyway.\n"); |
659 |
|
store_buf(cpu, 0x7c00, (char *)bootblock_buf, 512); |
660 |
|
free(bootblock_buf); |
661 |
|
|
662 |
|
return 1; |
663 |
|
} |
664 |
|
|
665 |
|
|
666 |
|
/* |
667 |
|
* Try reading a kernel manually from the disk. The code here |
668 |
|
* does not rely on machine-dependent boot blocks etc. |
669 |
|
*/ |
670 |
|
/* ISO9660: (0x800 bytes at 0x8000) */ |
671 |
|
bootblock_buf = malloc(0x800); |
672 |
|
if (bootblock_buf == NULL) { |
673 |
|
fprintf(stderr, "Out of memory.\n"); |
674 |
exit(1); |
exit(1); |
675 |
} |
} |
676 |
|
|
677 |
|
res = diskimage_access(m, boot_disk_id, boot_disk_type, |
678 |
|
0, 0x8000, bootblock_buf, 0x800); |
679 |
|
if (!res) { |
680 |
|
fatal("Couldn't read the disk image. Aborting.\n"); |
681 |
|
return 0; |
682 |
|
} |
683 |
|
|
684 |
|
iso_type = 0; |
685 |
|
if (strncmp((char *)bootblock_buf+1, "CD001", 5) == 0) |
686 |
|
iso_type = 1; |
687 |
|
if (strncmp((char *)bootblock_buf+1, "CDW01", 5) == 0) |
688 |
|
iso_type = 2; |
689 |
|
if (strncmp((char *)bootblock_buf+1, "CDROM", 5) == 0) |
690 |
|
iso_type = 3; |
691 |
|
|
692 |
|
if (iso_type != 0) { |
693 |
|
/* We can't load a kernel if the name |
694 |
|
isn't specified. */ |
695 |
|
if (cpu->machine->boot_kernel_filename == NULL || |
696 |
|
cpu->machine->boot_kernel_filename[0] == '\0') |
697 |
|
fatal("\nISO9660 filesystem, but no kernel " |
698 |
|
"specified? (Use the -j option.)\n"); |
699 |
|
else |
700 |
|
retval = iso_load_bootblock(m, cpu, boot_disk_id, |
701 |
|
boot_disk_type, iso_type, bootblock_buf, |
702 |
|
n_loadp, load_namesp); |
703 |
|
} |
704 |
|
|
705 |
|
if (retval != 0) |
706 |
|
goto ret_ok; |
707 |
|
|
708 |
|
/* Apple parition table: */ |
709 |
|
res = diskimage_access(m, boot_disk_id, boot_disk_type, |
710 |
|
0, 0x0, bootblock_buf, 0x800); |
711 |
|
if (!res) { |
712 |
|
fatal("Couldn't read the disk image. Aborting.\n"); |
713 |
|
return 0; |
714 |
|
} |
715 |
|
if (bootblock_buf[0x000] == 'E' && bootblock_buf[0x001] == 'R' && |
716 |
|
bootblock_buf[0x200] == 'P' && bootblock_buf[0x201] == 'M') { |
717 |
|
/* We can't load a kernel if the name |
718 |
|
isn't specified. */ |
719 |
|
if (cpu->machine->boot_kernel_filename == NULL || |
720 |
|
cpu->machine->boot_kernel_filename[0] == '\0') |
721 |
|
fatal("\nApple partition table, but no kernel " |
722 |
|
"specified? (Use the -j option.)\n"); |
723 |
|
else |
724 |
|
retval = apple_load_bootblock(m, cpu, boot_disk_id, |
725 |
|
boot_disk_type, n_loadp, load_namesp); |
726 |
|
} |
727 |
|
|
728 |
|
ret_ok: |
729 |
|
free(bootblock_buf); |
730 |
|
return retval; |
731 |
} |
} |
732 |
|
|
733 |
|
|
749 |
|
|
750 |
/* Sane default values: */ |
/* Sane default values: */ |
751 |
e->n_machines = 0; |
e->n_machines = 0; |
752 |
|
e->next_serial_nr = 1; |
753 |
|
|
754 |
if (name != NULL) { |
if (name != NULL) { |
755 |
e->name = strdup(name); |
e->name = strdup(name); |
812 |
|
|
813 |
len += 1048576 * m->memory_offset_in_mb; |
len += 1048576 * m->memory_offset_in_mb; |
814 |
|
|
815 |
/* NOTE/TODO: magic 12MB end of load program area */ |
/* |
816 |
|
* NOTE/TODO: magic 12MB end of load program area |
817 |
|
* |
818 |
|
* Hm. This breaks the old FreeBSD/MIPS snapshots... |
819 |
|
*/ |
820 |
|
#if 0 |
821 |
arcbios_add_memory_descriptor(cpu, |
arcbios_add_memory_descriptor(cpu, |
822 |
0x60000 + m->memory_offset_in_mb * 1048576, |
0x60000 + m->memory_offset_in_mb * 1048576, |
823 |
start-0x60000 - m->memory_offset_in_mb * 1048576, |
start-0x60000 - m->memory_offset_in_mb * 1048576, |
824 |
ARCBIOS_MEM_FreeMemory); |
ARCBIOS_MEM_FreeMemory); |
825 |
|
#endif |
826 |
arcbios_add_memory_descriptor(cpu, |
arcbios_add_memory_descriptor(cpu, |
827 |
start, len, ARCBIOS_MEM_LoadedProgram); |
start, len, ARCBIOS_MEM_LoadedProgram); |
828 |
|
|
829 |
scsicontroller = arcbios_get_scsicontroller(); |
scsicontroller = arcbios_get_scsicontroller(m); |
830 |
if (scsicontroller == 0) |
if (scsicontroller == 0) |
831 |
return; |
return; |
832 |
|
|
874 |
snprintf(component_string, |
snprintf(component_string, |
875 |
sizeof(component_string), |
sizeof(component_string), |
876 |
"scsi(0)cdrom(%i)", d->id); |
"scsi(0)cdrom(%i)", d->id); |
877 |
arcbios_add_string_to_component( |
arcbios_add_string_to_component(m, |
878 |
component_string, scsidevice); |
component_string, scsidevice); |
879 |
|
|
880 |
snprintf(component_string, |
snprintf(component_string, |
881 |
sizeof(component_string), |
sizeof(component_string), |
882 |
"scsi(0)cdrom(%i)fdisk(0)", d->id); |
"scsi(0)cdrom(%i)fdisk(0)", d->id); |
883 |
arcbios_add_string_to_component( |
arcbios_add_string_to_component(m, |
884 |
component_string, scsidisk); |
component_string, scsidisk); |
885 |
} else { |
} else { |
886 |
snprintf(component_string, |
snprintf(component_string, |
887 |
sizeof(component_string), |
sizeof(component_string), |
888 |
"scsi(0)disk(%i)", d->id); |
"scsi(0)disk(%i)", d->id); |
889 |
arcbios_add_string_to_component( |
arcbios_add_string_to_component(m, |
890 |
component_string, scsidevice); |
component_string, scsidevice); |
891 |
|
|
892 |
snprintf(component_string, |
snprintf(component_string, |
893 |
sizeof(component_string), |
sizeof(component_string), |
894 |
"scsi(0)disk(%i)rdisk(0)", d->id); |
"scsi(0)disk(%i)rdisk(0)", d->id); |
895 |
arcbios_add_string_to_component( |
arcbios_add_string_to_component(m, |
896 |
component_string, scsidisk); |
component_string, scsidisk); |
897 |
} |
} |
898 |
} |
} |
915 |
void emul_machine_setup(struct machine *m, int n_load, char **load_names, |
void emul_machine_setup(struct machine *m, int n_load, char **load_names, |
916 |
int n_devices, char **device_names) |
int n_devices, char **device_names) |
917 |
{ |
{ |
|
struct emul *emul; |
|
918 |
struct cpu *cpu; |
struct cpu *cpu; |
919 |
int i, iadd=4; |
int i, iadd = DEBUG_INDENTATION; |
920 |
uint64_t addr, memory_amount, entrypoint = 0, gp = 0, toc = 0; |
uint64_t memory_amount, entrypoint = 0, gp = 0, toc = 0; |
921 |
int byte_order; |
int byte_order; |
922 |
|
|
|
emul = m->emul; |
|
|
|
|
923 |
debug("machine \"%s\":\n", m->name); |
debug("machine \"%s\":\n", m->name); |
924 |
debug_indentation(iadd); |
debug_indentation(iadd); |
925 |
|
|
940 |
|
|
941 |
m->cpu_family = cpu_family_ptr_by_number(m->arch); |
m->cpu_family = cpu_family_ptr_by_number(m->arch); |
942 |
|
|
943 |
|
if (m->arch == ARCH_ALPHA) |
944 |
|
m->arch_pagesize = 8192; |
945 |
|
|
946 |
machine_memsize_fix(m); |
machine_memsize_fix(m); |
947 |
|
|
948 |
/* |
/* |
963 |
debug(" (offset by %iMB)", m->memory_offset_in_mb); |
debug(" (offset by %iMB)", m->memory_offset_in_mb); |
964 |
memory_amount += 1048576 * m->memory_offset_in_mb; |
memory_amount += 1048576 * m->memory_offset_in_mb; |
965 |
} |
} |
966 |
m->memory = memory_new(memory_amount); |
m->memory = memory_new(memory_amount, m->arch); |
967 |
if (m->machine_type != MACHINE_USERLAND) |
if (m->machine_type != MACHINE_USERLAND) |
968 |
debug("\n"); |
debug("\n"); |
969 |
|
|
990 |
} |
} |
991 |
memset(m->cpus, 0, sizeof(struct cpu *) * m->ncpus); |
memset(m->cpus, 0, sizeof(struct cpu *) * m->ncpus); |
992 |
|
|
|
/* Initialize dynamic binary translation, if available: */ |
|
|
if (m->bintrans_enable) |
|
|
bintrans_init(m, m->memory); |
|
|
|
|
993 |
debug("cpu0"); |
debug("cpu0"); |
994 |
if (m->ncpus > 1) |
if (m->ncpus > 1) |
995 |
debug(" .. cpu%i", m->ncpus - 1); |
debug(" .. cpu%i", m->ncpus - 1); |
996 |
debug(": "); |
debug(": "); |
997 |
for (i=0; i<m->ncpus; i++) { |
for (i=0; i<m->ncpus; i++) { |
998 |
m->cpus[i] = cpu_new(m->memory, m, i, m->cpu_name); |
m->cpus[i] = cpu_new(m->memory, m, i, m->cpu_name); |
999 |
if (m->bintrans_enable) |
if (m->cpus[i] == NULL) { |
1000 |
bintrans_init_cpu(m->cpus[i]); |
fprintf(stderr, "Unable to create CPU object. " |
1001 |
|
"Aborting."); |
1002 |
|
exit(1); |
1003 |
|
} |
1004 |
} |
} |
1005 |
debug("\n"); |
debug("\n"); |
1006 |
|
|
1007 |
|
#if 0 |
1008 |
|
/* Special case: The Playstation Portable has an additional CPU: */ |
1009 |
|
if (m->machine_type == MACHINE_PSP) { |
1010 |
|
debug("cpu%i: ", m->ncpus); |
1011 |
|
m->cpus[m->ncpus] = cpu_new(m->memory, m, |
1012 |
|
0 /* use 0 here to show info with debug() */, |
1013 |
|
"Allegrex" /* TODO */); |
1014 |
|
debug("\n"); |
1015 |
|
m->ncpus ++; |
1016 |
|
} |
1017 |
|
#endif |
1018 |
|
|
1019 |
if (m->use_random_bootstrap_cpu) |
if (m->use_random_bootstrap_cpu) |
1020 |
m->bootstrap_cpu = random() % m->ncpus; |
m->bootstrap_cpu = random() % m->ncpus; |
1021 |
else |
else |
1027 |
if (m->userland_emul != NULL) { |
if (m->userland_emul != NULL) { |
1028 |
useremul_name_to_useremul(cpu, |
useremul_name_to_useremul(cpu, |
1029 |
m->userland_emul, NULL, NULL, NULL); |
m->userland_emul, NULL, NULL, NULL); |
1030 |
cpu->memory_rw = userland_memory_rw; |
|
1031 |
|
switch (m->arch) { |
1032 |
|
#ifdef ENABLE_ALPHA |
1033 |
|
case ARCH_ALPHA: |
1034 |
|
cpu->memory_rw = alpha_userland_memory_rw; |
1035 |
|
break; |
1036 |
|
#endif |
1037 |
|
default:cpu->memory_rw = userland_memory_rw; |
1038 |
|
} |
1039 |
} |
} |
1040 |
|
|
1041 |
if (m->use_x11) |
if (m->use_x11) |
1042 |
x11_init(m); |
x11_init(m); |
1043 |
|
|
1044 |
/* Fill memory with random bytes: */ |
/* Fill memory with random bytes: */ |
|
/* TODO: This is MIPS-specific! */ |
|
1045 |
if (m->random_mem_contents) { |
if (m->random_mem_contents) { |
1046 |
for (i=0; i<m->physical_ram_in_mb * 1048576; i+=256) { |
for (i=0; i<m->physical_ram_in_mb * 1048576; i+=256) { |
1047 |
unsigned char data[256]; |
unsigned char data[256]; |
1048 |
unsigned int j; |
unsigned int j; |
1049 |
for (j=0; j<sizeof(data); j++) |
for (j=0; j<sizeof(data); j++) |
1050 |
data[j] = random() & 255; |
data[j] = random() & 255; |
1051 |
addr = 0xffffffff80000000ULL + i; |
cpu->memory_rw(cpu, m->memory, i, data, sizeof(data), |
1052 |
cpu->memory_rw(cpu, m->memory, addr, data, sizeof(data), |
MEM_WRITE, CACHE_NONE | NO_EXCEPTIONS | PHYSICAL); |
|
MEM_WRITE, CACHE_NONE | NO_EXCEPTIONS); |
|
1053 |
} |
} |
1054 |
} |
} |
1055 |
|
|
|
if ((m->machine_type == MACHINE_ARC || |
|
|
m->machine_type == MACHINE_SGI) && m->prom_emulation) |
|
|
arcbios_init(); |
|
|
|
|
1056 |
if (m->userland_emul != NULL) { |
if (m->userland_emul != NULL) { |
1057 |
/* |
/* |
1058 |
* For userland-only emulation, no machine emulation |
* For userland-only emulation, no machine emulation |
1066 |
} |
} |
1067 |
|
|
1068 |
diskimage_dump_info(m); |
diskimage_dump_info(m); |
1069 |
|
console_debug_dump(m); |
1070 |
|
|
1071 |
/* Load files (ROM code, boot code, ...) into memory: */ |
/* Load files (ROM code, boot code, ...) into memory: */ |
1072 |
if (n_load == 0) { |
if (n_load == 0) { |
1073 |
if (m->first_diskimage != NULL) |
if (m->first_diskimage != NULL) { |
1074 |
load_bootblock(m, cpu); |
if (!load_bootblock(m, cpu, &n_load, &load_names)) { |
1075 |
else { |
fprintf(stderr, "\nNo executable files were" |
1076 |
|
" specified, and booting directly from disk" |
1077 |
|
" failed.\n"); |
1078 |
|
exit(1); |
1079 |
|
} |
1080 |
|
} else { |
1081 |
fprintf(stderr, "No executable file(s) loaded, and " |
fprintf(stderr, "No executable file(s) loaded, and " |
1082 |
"we are not booting directly from a disk image." |
"we are not booting directly from a disk image." |
1083 |
"\nAborting.\n"); |
"\nAborting.\n"); |
1086 |
} |
} |
1087 |
|
|
1088 |
while (n_load > 0) { |
while (n_load > 0) { |
1089 |
|
FILE *tmp_f; |
1090 |
|
char *name_to_load = *load_names; |
1091 |
|
int remove_after_load = 0; |
1092 |
|
|
1093 |
|
/* Special hack for removing temporary files: */ |
1094 |
|
if (name_to_load[0] == 8) { |
1095 |
|
name_to_load ++; |
1096 |
|
remove_after_load = 1; |
1097 |
|
} |
1098 |
|
|
1099 |
|
/* |
1100 |
|
* gzipped files are automagically gunzipped: |
1101 |
|
* NOTE/TODO: This isn't secure. system() is used. |
1102 |
|
*/ |
1103 |
|
tmp_f = fopen(name_to_load, "r"); |
1104 |
|
if (tmp_f != NULL) { |
1105 |
|
unsigned char buf[2]; /* gzip header */ |
1106 |
|
memset(buf, 0, sizeof(buf)); |
1107 |
|
fread(buf, 1, sizeof(buf), tmp_f); |
1108 |
|
if (buf[0]==0x1f && buf[1]==0x8b) { |
1109 |
|
size_t zzlen = strlen(name_to_load)*2 + 100; |
1110 |
|
char *zz = malloc(zzlen); |
1111 |
|
debug("gunziping %s\n", name_to_load); |
1112 |
|
/* |
1113 |
|
* gzip header found. If this was a file |
1114 |
|
* extracted from, say, a CDROM image, then it |
1115 |
|
* already has a temporary name. Otherwise we |
1116 |
|
* have to gunzip into a temporary file. |
1117 |
|
*/ |
1118 |
|
if (remove_after_load) { |
1119 |
|
snprintf(zz, zzlen, "mv %s %s.gz", |
1120 |
|
name_to_load, name_to_load); |
1121 |
|
system(zz); |
1122 |
|
snprintf(zz, zzlen, "gunzip %s.gz", |
1123 |
|
name_to_load); |
1124 |
|
system(zz); |
1125 |
|
} else { |
1126 |
|
/* gunzip into new temp file: */ |
1127 |
|
int tmpfile_handle; |
1128 |
|
char *new_temp_name = |
1129 |
|
strdup("/tmp/gxemul.XXXXXXXXXXXX"); |
1130 |
|
tmpfile_handle = mkstemp(new_temp_name); |
1131 |
|
close(tmpfile_handle); |
1132 |
|
snprintf(zz, zzlen, "gunzip -c '%s' > " |
1133 |
|
"%s", name_to_load, new_temp_name); |
1134 |
|
system(zz); |
1135 |
|
name_to_load = new_temp_name; |
1136 |
|
remove_after_load = 1; |
1137 |
|
} |
1138 |
|
free(zz); |
1139 |
|
} |
1140 |
|
fclose(tmp_f); |
1141 |
|
} |
1142 |
|
|
1143 |
|
/* |
1144 |
|
* Ugly (but usable) hack for Playstation Portable: If the |
1145 |
|
* filename ends with ".pbp" and the file contains an ELF |
1146 |
|
* header, then extract the ELF file into a temporary file. |
1147 |
|
*/ |
1148 |
|
if (strlen(name_to_load) > 4 && strcasecmp(name_to_load + |
1149 |
|
strlen(name_to_load) - 4, ".pbp") == 0 && |
1150 |
|
(tmp_f = fopen(name_to_load, "r")) != NULL) { |
1151 |
|
off_t filesize, j, found=0; |
1152 |
|
unsigned char *buf; |
1153 |
|
fseek(tmp_f, 0, SEEK_END); |
1154 |
|
filesize = ftello(tmp_f); |
1155 |
|
fseek(tmp_f, 0, SEEK_SET); |
1156 |
|
buf = malloc(filesize); |
1157 |
|
if (buf == NULL) { |
1158 |
|
fprintf(stderr, "out of memory while trying" |
1159 |
|
" to read %s\n", name_to_load); |
1160 |
|
exit(1); |
1161 |
|
} |
1162 |
|
fread(buf, 1, filesize, tmp_f); |
1163 |
|
fclose(tmp_f); |
1164 |
|
/* Search for the ELF header, from offset 1 (!): */ |
1165 |
|
for (j=1; j<filesize - 4; j++) |
1166 |
|
if (memcmp(buf + j, ELFMAG, SELFMAG) == 0) { |
1167 |
|
found = j; |
1168 |
|
break; |
1169 |
|
} |
1170 |
|
if (found != 0) { |
1171 |
|
int tmpfile_handle; |
1172 |
|
char *new_temp_name = |
1173 |
|
strdup("/tmp/gxemul.XXXXXXXXXXXX"); |
1174 |
|
debug("extracting ELF from %s (offset 0x%x)\n", |
1175 |
|
name_to_load, (int)found); |
1176 |
|
tmpfile_handle = mkstemp(new_temp_name); |
1177 |
|
write(tmpfile_handle, buf + found, |
1178 |
|
filesize - found); |
1179 |
|
close(tmpfile_handle); |
1180 |
|
name_to_load = new_temp_name; |
1181 |
|
remove_after_load = 1; |
1182 |
|
} |
1183 |
|
} |
1184 |
|
|
1185 |
|
/* Special things required _before_ loading the file: */ |
1186 |
|
switch (m->arch) { |
1187 |
|
case ARCH_X86: |
1188 |
|
/* |
1189 |
|
* X86 machines normally don't need to load any files, |
1190 |
|
* they can boot from disk directly. Therefore, an x86 |
1191 |
|
* machine usually boots up in 16-bit real mode. When |
1192 |
|
* loading a 32-bit (or even 64-bit) ELF, that's not |
1193 |
|
* very nice, hence this special case. |
1194 |
|
*/ |
1195 |
|
pc_bios_simple_pmode_setup(cpu); |
1196 |
|
break; |
1197 |
|
} |
1198 |
|
|
1199 |
byte_order = NO_BYTE_ORDER_OVERRIDE; |
byte_order = NO_BYTE_ORDER_OVERRIDE; |
1200 |
|
|
1201 |
file_load(m, m->memory, *load_names, &entrypoint, |
/* |
1202 |
|
* Load the file: :-) |
1203 |
|
*/ |
1204 |
|
file_load(m, m->memory, name_to_load, &entrypoint, |
1205 |
m->arch, &gp, &byte_order, &toc); |
m->arch, &gp, &byte_order, &toc); |
1206 |
|
|
1207 |
|
if (remove_after_load) { |
1208 |
|
debug("removing %s\n", name_to_load); |
1209 |
|
unlink(name_to_load); |
1210 |
|
} |
1211 |
|
|
1212 |
if (byte_order != NO_BYTE_ORDER_OVERRIDE) |
if (byte_order != NO_BYTE_ORDER_OVERRIDE) |
1213 |
cpu->byte_order = byte_order; |
cpu->byte_order = byte_order; |
1214 |
|
|
1215 |
cpu->pc = entrypoint; |
cpu->pc = entrypoint; |
1216 |
|
|
1217 |
switch (m->arch) { |
switch (m->arch) { |
1218 |
|
|
1219 |
|
case ARCH_ALPHA: |
1220 |
|
/* For position-independent code: */ |
1221 |
|
cpu->cd.alpha.r[ALPHA_T12] = cpu->pc; |
1222 |
|
break; |
1223 |
|
|
1224 |
|
case ARCH_ARM: |
1225 |
|
if (cpu->pc & 3) { |
1226 |
|
fatal("ARM: lowest bits of pc set: TODO\n"); |
1227 |
|
exit(1); |
1228 |
|
} |
1229 |
|
cpu->pc &= 0xfffffffc; |
1230 |
|
break; |
1231 |
|
|
1232 |
|
case ARCH_AVR: |
1233 |
|
cpu->pc &= 0xfffff; |
1234 |
|
if (cpu->pc & 1) { |
1235 |
|
fatal("AVR: lowest bit of pc set: TODO\n"); |
1236 |
|
exit(1); |
1237 |
|
} |
1238 |
|
break; |
1239 |
|
|
1240 |
|
case ARCH_HPPA: |
1241 |
|
break; |
1242 |
|
|
1243 |
|
case ARCH_I960: |
1244 |
|
break; |
1245 |
|
|
1246 |
|
case ARCH_IA64: |
1247 |
|
break; |
1248 |
|
|
1249 |
|
case ARCH_M68K: |
1250 |
|
break; |
1251 |
|
|
1252 |
case ARCH_MIPS: |
case ARCH_MIPS: |
1253 |
if ((cpu->pc >> 32) == 0 |
if ((cpu->pc >> 32) == 0 && (cpu->pc & 0x80000000ULL)) |
|
&& (cpu->pc & 0x80000000ULL)) |
|
1254 |
cpu->pc |= 0xffffffff00000000ULL; |
cpu->pc |= 0xffffffff00000000ULL; |
1255 |
|
|
1256 |
cpu->cd.mips.gpr[MIPS_GPR_GP] = gp; |
cpu->cd.mips.gpr[MIPS_GPR_GP] = gp; |
1260 |
cpu->cd.mips.gpr[MIPS_GPR_GP] |= |
cpu->cd.mips.gpr[MIPS_GPR_GP] |= |
1261 |
0xffffffff00000000ULL; |
0xffffffff00000000ULL; |
1262 |
break; |
break; |
1263 |
|
|
1264 |
case ARCH_PPC: |
case ARCH_PPC: |
1265 |
|
/* See http://www.linuxbase.org/spec/ELF/ppc64/ |
1266 |
|
spec/x458.html for more info. */ |
1267 |
cpu->cd.ppc.gpr[2] = toc; |
cpu->cd.ppc.gpr[2] = toc; |
1268 |
|
/* TODO */ |
1269 |
|
if (cpu->cd.ppc.bits == 32) |
1270 |
|
cpu->pc &= 0xffffffffULL; |
1271 |
break; |
break; |
1272 |
case ARCH_SPARC: |
|
1273 |
|
case ARCH_SH: |
1274 |
|
if (cpu->cd.sh.bits == 32) |
1275 |
|
cpu->pc &= 0xffffffffULL; |
1276 |
|
cpu->pc &= ~1; |
1277 |
break; |
break; |
1278 |
case ARCH_URISC: |
|
1279 |
|
case ARCH_SPARC: |
1280 |
break; |
break; |
1281 |
case ARCH_HPPA: |
|
1282 |
|
case ARCH_TRANSPUTER: |
1283 |
|
cpu->pc &= 0xffffffffULL; |
1284 |
break; |
break; |
1285 |
case ARCH_ALPHA: |
|
1286 |
|
case ARCH_X86: |
1287 |
|
/* |
1288 |
|
* NOTE: The toc field is used to indicate an ELF32 |
1289 |
|
* or ELF64 load. |
1290 |
|
*/ |
1291 |
|
switch (toc) { |
1292 |
|
case 0: /* 16-bit? TODO */ |
1293 |
|
cpu->pc &= 0xffffffffULL; |
1294 |
|
break; |
1295 |
|
case 1: /* 32-bit. */ |
1296 |
|
cpu->pc &= 0xffffffffULL; |
1297 |
|
break; |
1298 |
|
case 2: /* 64-bit: TODO */ |
1299 |
|
fatal("64-bit x86 load. TODO\n"); |
1300 |
|
exit(1); |
1301 |
|
} |
1302 |
break; |
break; |
1303 |
|
|
1304 |
default: |
default: |
1305 |
fatal("emul_machine_setup(): Internal error: " |
fatal("emul_machine_setup(): Internal error: " |
1306 |
"Unimplemented arch %i\n", m->arch); |
"Unimplemented arch %i\n", m->arch); |
1349 |
add_dump_points(m); |
add_dump_points(m); |
1350 |
|
|
1351 |
/* TODO: This is MIPS-specific! */ |
/* TODO: This is MIPS-specific! */ |
1352 |
if (m->machine_type == MACHINE_DEC && |
if (m->machine_type == MACHINE_PMAX && |
1353 |
cpu->cd.mips.cpu_type.mmu_model == MMU3K) |
cpu->cd.mips.cpu_type.mmu_model == MMU3K) |
1354 |
add_symbol_name(&m->symbol_context, |
add_symbol_name(&m->symbol_context, |
1355 |
0x9fff0000, 0x10000, "r2k3k_cache", 0); |
0x9fff0000, 0x10000, "r2k3k_cache", 0, 0); |
1356 |
|
|
1357 |
symbol_recalc_sizes(&m->symbol_context); |
symbol_recalc_sizes(&m->symbol_context); |
1358 |
|
|
|
if (m->max_random_cycles_per_chunk > 0) |
|
|
debug("using random cycle chunks (1 to %i cycles)\n", |
|
|
m->max_random_cycles_per_chunk); |
|
|
|
|
1359 |
/* Special hack for ARC/SGI emulation: */ |
/* Special hack for ARC/SGI emulation: */ |
1360 |
if ((m->machine_type == MACHINE_ARC || |
if ((m->machine_type == MACHINE_ARC || |
1361 |
m->machine_type == MACHINE_SGI) && m->prom_emulation) |
m->machine_type == MACHINE_SGI) && m->prom_emulation) |
1363 |
|
|
1364 |
debug("starting cpu%i at ", m->bootstrap_cpu); |
debug("starting cpu%i at ", m->bootstrap_cpu); |
1365 |
switch (m->arch) { |
switch (m->arch) { |
1366 |
|
|
1367 |
|
case ARCH_ARM: |
1368 |
|
/* ARM cpus aren't 64-bit: */ |
1369 |
|
debug("0x%08x", (int)entrypoint); |
1370 |
|
break; |
1371 |
|
|
1372 |
|
case ARCH_AVR: |
1373 |
|
/* Atmel AVR uses a 16-bit or 22-bit program counter: */ |
1374 |
|
debug("0x%04x", (int)entrypoint); |
1375 |
|
break; |
1376 |
|
|
1377 |
case ARCH_MIPS: |
case ARCH_MIPS: |
1378 |
if (cpu->cd.mips.cpu_type.isa_level < 3 || |
if (cpu->is_32bit) { |
|
cpu->cd.mips.cpu_type.isa_level == 32) { |
|
1379 |
debug("0x%08x", (int)m->cpus[ |
debug("0x%08x", (int)m->cpus[ |
1380 |
m->bootstrap_cpu]->pc); |
m->bootstrap_cpu]->pc); |
1381 |
if (cpu->cd.mips.gpr[MIPS_GPR_GP] != 0) |
if (cpu->cd.mips.gpr[MIPS_GPR_GP] != 0) |
1390 |
cpu->cd.mips.gpr[MIPS_GPR_GP]); |
cpu->cd.mips.gpr[MIPS_GPR_GP]); |
1391 |
} |
} |
1392 |
break; |
break; |
1393 |
|
|
1394 |
case ARCH_PPC: |
case ARCH_PPC: |
1395 |
if (cpu->cd.ppc.bits == 32) |
if (cpu->cd.ppc.bits == 32) |
1396 |
debug("0x%08x", (int)entrypoint); |
debug("0x%08x", (int)entrypoint); |
1397 |
else |
else |
1398 |
debug("0x%016llx", (long long)entrypoint); |
debug("0x%016llx", (long long)entrypoint); |
1399 |
break; |
break; |
1400 |
case ARCH_URISC: |
|
1401 |
{ |
case ARCH_X86: |
1402 |
char tmps[100]; |
debug("0x%04x:0x%llx", cpu->cd.x86.s[X86_S_CS], |
1403 |
unsigned char buf[sizeof(uint64_t)]; |
(long long)cpu->pc); |
|
|
|
|
cpu->memory_rw(cpu, m->memory, 0, buf, sizeof(buf), |
|
|
MEM_READ, CACHE_NONE | NO_EXCEPTIONS); |
|
|
|
|
|
entrypoint = 0; |
|
|
for (i=0; i<cpu->cd.urisc.wordlen/8; i++) { |
|
|
entrypoint <<= 8; |
|
|
if (cpu->byte_order == EMUL_BIG_ENDIAN) |
|
|
entrypoint += buf[i]; |
|
|
else |
|
|
entrypoint += buf[cpu-> |
|
|
cd.urisc.wordlen/8 - 1 - i]; |
|
|
} |
|
|
|
|
|
sprintf(tmps, "0x%%0%illx", cpu->cd.urisc.wordlen / 4); |
|
|
debug(tmps, (long long)entrypoint); |
|
|
cpu->pc = entrypoint; |
|
|
} |
|
1404 |
break; |
break; |
1405 |
|
|
1406 |
default: |
default: |
1407 |
debug("0x%016llx", (long long)entrypoint); |
if (cpu->is_32bit) |
1408 |
|
debug("0x%08x", (int)cpu->pc); |
1409 |
|
else |
1410 |
|
debug("0x%016llx", (long long)cpu->pc); |
1411 |
} |
} |
1412 |
debug("\n"); |
debug("\n"); |
1413 |
|
|
1422 |
*/ |
*/ |
1423 |
void emul_dumpinfo(struct emul *e) |
void emul_dumpinfo(struct emul *e) |
1424 |
{ |
{ |
1425 |
int j, nm, iadd = 4; |
int j, nm, iadd = DEBUG_INDENTATION; |
1426 |
|
|
1427 |
if (e->net != NULL) |
if (e->net != NULL) |
1428 |
net_dumpinfo(e->net); |
net_dumpinfo(e->net); |
1451 |
*/ |
*/ |
1452 |
void emul_simple_init(struct emul *emul) |
void emul_simple_init(struct emul *emul) |
1453 |
{ |
{ |
1454 |
int iadd=4; |
int iadd = DEBUG_INDENTATION; |
1455 |
struct machine *m; |
struct machine *m; |
1456 |
|
|
1457 |
if (emul->n_machines != 1) { |
if (emul->n_machines != 1) { |
1465 |
debug("Simple setup...\n"); |
debug("Simple setup...\n"); |
1466 |
debug_indentation(iadd); |
debug_indentation(iadd); |
1467 |
|
|
1468 |
/* Create a network: */ |
/* Create a simple network: */ |
1469 |
emul->net = net_init(emul, NET_INIT_FLAG_GATEWAY, |
emul->net = net_init(emul, NET_INIT_FLAG_GATEWAY, |
1470 |
"10.0.0.0", 8); |
"10.0.0.0", 8, NULL, 0, 0); |
1471 |
} else { |
} else { |
1472 |
/* Userland pseudo-machine: */ |
/* Userland pseudo-machine: */ |
1473 |
debug("Syscall emulation (userland-only) setup...\n"); |
debug("Syscall emulation (userland-only) setup...\n"); |
1488 |
*/ |
*/ |
1489 |
struct emul *emul_create_from_configfile(char *fname) |
struct emul *emul_create_from_configfile(char *fname) |
1490 |
{ |
{ |
1491 |
int iadd = 4; |
int iadd = DEBUG_INDENTATION; |
1492 |
struct emul *e = emul_new(fname); |
struct emul *e = emul_new(fname); |
|
FILE *f; |
|
|
char buf[128]; |
|
|
size_t len; |
|
1493 |
|
|
1494 |
debug("Creating emulation from configfile \"%s\":\n", fname); |
debug("Creating emulation from configfile \"%s\":\n", fname); |
1495 |
debug_indentation(iadd); |
debug_indentation(iadd); |
1496 |
|
|
1497 |
f = fopen(fname, "r"); |
emul_parse_config(e, fname); |
|
if (f == NULL) { |
|
|
perror(fname); |
|
|
exit(1); |
|
|
} |
|
1498 |
|
|
|
/* Read header: (must be !!gxemul) */ |
|
|
len = fread(buf, 1, 8, f); |
|
|
if (len != 8 || strncmp(buf, "!!gxemul", 8) != 0) { |
|
|
fprintf(stderr, "%s: must start with '!!gxemul'\n", fname); |
|
|
exit(1); |
|
|
} |
|
|
|
|
|
/* Restart from beginning: */ |
|
|
rewind(f); |
|
|
|
|
|
emul_parse_config(e, f); |
|
|
|
|
|
fclose(f); |
|
1499 |
debug_indentation(-iadd); |
debug_indentation(-iadd); |
1500 |
return e; |
return e; |
1501 |
} |
} |
1522 |
|
|
1523 |
atexit(fix_console); |
atexit(fix_console); |
1524 |
|
|
|
i = 79; |
|
|
while (i-- > 0) |
|
|
debug("-"); |
|
|
debug("\n\n"); |
|
|
|
|
1525 |
/* Initialize the interactive debugger: */ |
/* Initialize the interactive debugger: */ |
1526 |
debugger_init(emuls, n_emuls); |
debugger_init(emuls, n_emuls); |
1527 |
|
|
1528 |
|
/* Run any additional debugger commands before starting: */ |
1529 |
|
for (i=0; i<n_emuls; i++) { |
1530 |
|
struct emul *emul = emuls[i]; |
1531 |
|
if (emul->n_debugger_cmds > 0) { |
1532 |
|
int j; |
1533 |
|
if (i == 0) |
1534 |
|
print_separator(); |
1535 |
|
for (j = 0; j < emul->n_debugger_cmds; j ++) { |
1536 |
|
debug("> %s\n", emul->debugger_cmds[j]); |
1537 |
|
debugger_execute_cmd(emul->debugger_cmds[j], |
1538 |
|
strlen(emul->debugger_cmds[j])); |
1539 |
|
} |
1540 |
|
} |
1541 |
|
} |
1542 |
|
|
1543 |
|
print_separator(); |
1544 |
|
debug("\n"); |
1545 |
|
|
1546 |
|
|
1547 |
/* |
/* |
1548 |
* console_init_main() makes sure that the terminal is in a |
* console_init_main() makes sure that the terminal is in a |
1549 |
* reasonable state. |
* reasonable state. |
1568 |
if (e == NULL) |
if (e == NULL) |
1569 |
continue; |
continue; |
1570 |
for (j=0; j<e->n_machines; j++) |
for (j=0; j<e->n_machines; j++) |
1571 |
cpu_run_init(e, e->machines[j]); |
cpu_run_init(e->machines[j]); |
1572 |
} |
} |
1573 |
|
|
1574 |
|
/* TODO: Generalize: */ |
1575 |
|
if (emuls[0]->machines[0]->show_trace_tree) |
1576 |
|
cpu_functioncall_trace(emuls[0]->machines[0]->cpus[0], |
1577 |
|
emuls[0]->machines[0]->cpus[0]->pc); |
1578 |
|
|
1579 |
/* |
/* |
1580 |
* MAIN LOOP: |
* MAIN LOOP: |
1581 |
* |
* |
1585 |
while (go) { |
while (go) { |
1586 |
go = 0; |
go = 0; |
1587 |
|
|
1588 |
x11_check_event(emuls, n_emuls); |
/* Flush X11 and serial console output every now and then: */ |
1589 |
|
if (emuls[0]->machines[0]->ninstrs > |
1590 |
|
emuls[0]->machines[0]->ninstrs_flush + (1<<19)) { |
1591 |
|
x11_check_event(emuls, n_emuls); |
1592 |
|
console_flush(); |
1593 |
|
emuls[0]->machines[0]->ninstrs_flush = |
1594 |
|
emuls[0]->machines[0]->ninstrs; |
1595 |
|
} |
1596 |
|
|
1597 |
for (i=0; i<n_emuls; i++) { |
if (emuls[0]->machines[0]->ninstrs > |
1598 |
e = emuls[i]; |
emuls[0]->machines[0]->ninstrs_show + (1<<25)) { |
1599 |
if (e == NULL) |
emuls[0]->machines[0]->ninstrs_since_gettimeofday += |
1600 |
continue; |
(emuls[0]->machines[0]->ninstrs - |
1601 |
|
emuls[0]->machines[0]->ninstrs_show); |
1602 |
for (j=0; j<e->n_machines; j++) { |
cpu_show_cycles(emuls[0]->machines[0], 0); |
1603 |
/* TODO: cpu_run() is a strange name, since |
emuls[0]->machines[0]->ninstrs_show = |
1604 |
there can be multiple cpus in a machine */ |
emuls[0]->machines[0]->ninstrs; |
1605 |
anything = cpu_run(e, e->machines[j]); |
} |
1606 |
if (anything) |
|
1607 |
go = 1; |
if (single_step == ENTER_SINGLE_STEPPING) { |
1608 |
} |
/* TODO: Cleanup! */ |
1609 |
|
old_instruction_trace = |
1610 |
|
emuls[0]->machines[0]->instruction_trace; |
1611 |
|
old_quiet_mode = quiet_mode; |
1612 |
|
old_show_trace_tree = |
1613 |
|
emuls[0]->machines[0]->show_trace_tree; |
1614 |
|
emuls[0]->machines[0]->instruction_trace = 1; |
1615 |
|
emuls[0]->machines[0]->show_trace_tree = 1; |
1616 |
|
quiet_mode = 0; |
1617 |
|
single_step = SINGLE_STEPPING; |
1618 |
|
} |
1619 |
|
|
1620 |
|
if (single_step == SINGLE_STEPPING) |
1621 |
|
debugger(); |
1622 |
|
|
1623 |
|
e = emuls[0]; /* Note: Only 1 emul supported now. */ |
1624 |
|
|
1625 |
|
for (j=0; j<e->n_machines; j++) { |
1626 |
|
if (e->machines[j]->gdb.port > 0) |
1627 |
|
debugger_gdb_check_incoming(e->machines[j]); |
1628 |
|
|
1629 |
|
anything = machine_run(e->machines[j]); |
1630 |
|
if (anything) |
1631 |
|
go = 1; |
1632 |
} |
} |
1633 |
} |
} |
1634 |
|
|
1638 |
if (e == NULL) |
if (e == NULL) |
1639 |
continue; |
continue; |
1640 |
for (j=0; j<e->n_machines; j++) |
for (j=0; j<e->n_machines; j++) |
1641 |
cpu_run_deinit(e, e->machines[j]); |
cpu_run_deinit(e->machines[j]); |
1642 |
} |
} |
1643 |
|
|
1644 |
/* force_debugger_at_exit flag set? Then enter the debugger: */ |
/* force_debugger_at_exit flag set? Then enter the debugger: */ |