25 |
* SUCH DAMAGE. |
* SUCH DAMAGE. |
26 |
* |
* |
27 |
* |
* |
28 |
* $Id: emul.c,v 1.184 2005/04/20 04:43:52 debug Exp $ |
* $Id: emul.c,v 1.203 2005/06/03 07:39:27 debug Exp $ |
29 |
* |
* |
30 |
* Emulation startup and misc. routines. |
* Emulation startup and misc. routines. |
31 |
*/ |
*/ |
66 |
extern struct emul *debugger_emul; |
extern struct emul *debugger_emul; |
67 |
extern struct diskimage *diskimages[]; |
extern struct diskimage *diskimages[]; |
68 |
|
|
69 |
|
static char *diskimage_types[] = DISKIMAGE_TYPES; |
70 |
|
|
71 |
|
|
72 |
/* |
/* |
73 |
* add_dump_points(): |
* add_dump_points(): |
133 |
|
|
134 |
|
|
135 |
/* |
/* |
136 |
|
* iso_load_bootblock(): |
137 |
|
* |
138 |
|
* Try to load a kernel from an ISO 9660 disk image. iso_type is 1 for |
139 |
|
* "CD001" (standard), 2 for "CDW01" (ECMA), and 3 for "CDROM" (Sierra). |
140 |
|
* |
141 |
|
* TODO: This function uses too many magic offsets and so on; it should be |
142 |
|
* cleaned up some day. |
143 |
|
* |
144 |
|
* Returns 1 on success, 0 on failure. |
145 |
|
*/ |
146 |
|
static int iso_load_bootblock(struct machine *m, struct cpu *cpu, |
147 |
|
int disk_id, int disk_type, int iso_type, unsigned char *buf, |
148 |
|
int *n_loadp, char ***load_namesp) |
149 |
|
{ |
150 |
|
char str[35]; |
151 |
|
int filenr, i, ofs, dirlen, res = 0, res2, iadd = 4; |
152 |
|
int found_dir; |
153 |
|
uint64_t dirofs; |
154 |
|
uint64_t fileofs, filelen; |
155 |
|
unsigned char *dirbuf = NULL, *dp; |
156 |
|
unsigned char *match_entry = NULL; |
157 |
|
char *p, *filename_orig; |
158 |
|
char *filename = strdup(cpu->machine->boot_kernel_filename); |
159 |
|
unsigned char *filebuf = NULL; |
160 |
|
char *tmpfilename = NULL; |
161 |
|
char **new_array; |
162 |
|
int tmpfile_handle; |
163 |
|
|
164 |
|
if (filename == NULL) { |
165 |
|
fatal("out of memory\n"); |
166 |
|
exit(1); |
167 |
|
} |
168 |
|
filename_orig = filename; |
169 |
|
|
170 |
|
debug("ISO9660 boot:\n"); |
171 |
|
debug_indentation(iadd); |
172 |
|
|
173 |
|
/* Volume ID: */ |
174 |
|
ofs = iso_type == 3? 48 : 40; |
175 |
|
memcpy(str, buf + ofs, sizeof(str)); |
176 |
|
str[32] = '\0'; i = 31; |
177 |
|
while (i >= 0 && str[i]==' ') |
178 |
|
str[i--] = '\0'; |
179 |
|
if (str[0]) |
180 |
|
debug("\"%s\"", str); |
181 |
|
else { |
182 |
|
/* System ID: */ |
183 |
|
ofs = iso_type == 3? 16 : 8; |
184 |
|
memcpy(str, buf + ofs, sizeof(str)); |
185 |
|
str[32] = '\0'; i = 31; |
186 |
|
while (i >= 0 && str[i]==' ') |
187 |
|
str[i--] = '\0'; |
188 |
|
if (str[0]) |
189 |
|
debug("\"%s\"", str); |
190 |
|
else |
191 |
|
debug("(no ID)"); |
192 |
|
} |
193 |
|
|
194 |
|
debug(":%s\n", filename); |
195 |
|
|
196 |
|
|
197 |
|
/* |
198 |
|
* Traverse the directory structure to find the kernel. |
199 |
|
*/ |
200 |
|
|
201 |
|
dirlen = buf[0x84] + 256*buf[0x85] + 65536*buf[0x86]; |
202 |
|
if (dirlen != buf[0x8b] + 256*buf[0x8a] + 65536*buf[0x89]) |
203 |
|
fatal("WARNING: Root directory length mismatch?\n"); |
204 |
|
|
205 |
|
dirofs = (int64_t)(buf[0x8c] + (buf[0x8d] << 8) + (buf[0x8e] << 16) + |
206 |
|
(buf[0x8f] << 24)) * 2048; |
207 |
|
|
208 |
|
/* debug("root = %i bytes at 0x%llx\n", dirlen, (long long)dirofs); */ |
209 |
|
|
210 |
|
dirbuf = malloc(dirlen); |
211 |
|
if (dirbuf == NULL) { |
212 |
|
fatal("out of memory in iso_load_bootblock()\n"); |
213 |
|
exit(1); |
214 |
|
} |
215 |
|
|
216 |
|
res2 = diskimage_access(m, disk_id, disk_type, 0, dirofs, dirbuf, |
217 |
|
dirlen); |
218 |
|
if (!res2) { |
219 |
|
fatal("Couldn't read the disk image. Aborting.\n"); |
220 |
|
goto ret; |
221 |
|
} |
222 |
|
|
223 |
|
found_dir = 1; /* Assume root dir */ |
224 |
|
dp = dirbuf; filenr = 1; |
225 |
|
p = NULL; |
226 |
|
while (dp < dirbuf + dirlen) { |
227 |
|
int i, nlen = dp[0]; |
228 |
|
int x = dp[2] + (dp[3] << 8) + (dp[4] << 16) + (dp[5] << 24); |
229 |
|
int y = dp[6] + (dp[7] << 8); |
230 |
|
char direntry[65]; |
231 |
|
|
232 |
|
dp += 8; |
233 |
|
|
234 |
|
/* |
235 |
|
* As long as there is an \ or / in the filename, then we |
236 |
|
* have not yet found the directory. |
237 |
|
*/ |
238 |
|
p = strchr(filename, '/'); |
239 |
|
if (p == NULL) |
240 |
|
p = strchr(filename, '\\'); |
241 |
|
|
242 |
|
/* debug("%i%s: %i, %i, \"", filenr, filenr == found_dir? |
243 |
|
" [CURRENT]" : "", x, y); */ |
244 |
|
for (i=0; i<nlen && i<sizeof(direntry)-1; i++) |
245 |
|
if (dp[i]) { |
246 |
|
direntry[i] = dp[i]; |
247 |
|
/* debug("%c", dp[i]); */ |
248 |
|
} else |
249 |
|
break; |
250 |
|
/* debug("\"\n"); */ |
251 |
|
direntry[i] = '\0'; |
252 |
|
|
253 |
|
/* A directory name match? */ |
254 |
|
if (p != NULL && strncasecmp(filename, direntry, nlen) == 0 |
255 |
|
&& nlen == (size_t)p - (size_t)filename && found_dir == y) { |
256 |
|
found_dir = filenr; |
257 |
|
filename = p+1; |
258 |
|
dirofs = 2048 * (int64_t)x; |
259 |
|
} |
260 |
|
|
261 |
|
dp += nlen; |
262 |
|
|
263 |
|
/* 16-bit aligned lenght: */ |
264 |
|
if (nlen & 1) |
265 |
|
dp ++; |
266 |
|
|
267 |
|
filenr ++; |
268 |
|
} |
269 |
|
|
270 |
|
p = strchr(filename, '/'); |
271 |
|
if (p == NULL) |
272 |
|
p = strchr(filename, '\\'); |
273 |
|
|
274 |
|
if (p != NULL) { |
275 |
|
char *blah = filename_orig; |
276 |
|
|
277 |
|
fatal("could not find '%s' in /", filename); |
278 |
|
|
279 |
|
/* Print the first part of the filename: */ |
280 |
|
while (blah != filename) |
281 |
|
fatal("%c", *blah++); |
282 |
|
|
283 |
|
fatal("\n"); |
284 |
|
goto ret; |
285 |
|
} |
286 |
|
|
287 |
|
/* debug("dirofs = 0x%llx\n", (long long)dirofs); */ |
288 |
|
|
289 |
|
/* Free the old dirbuf, and allocate a new one: */ |
290 |
|
free(dirbuf); |
291 |
|
dirbuf = malloc(512); |
292 |
|
if (dirbuf == NULL) { |
293 |
|
fatal("out of memory in iso_load_bootblock()\n"); |
294 |
|
exit(1); |
295 |
|
} |
296 |
|
|
297 |
|
for (;;) { |
298 |
|
int len, i; |
299 |
|
|
300 |
|
/* Too close to another sector? Then realign. */ |
301 |
|
if ((dirofs & 2047) + 70 > 2047) { |
302 |
|
dirofs = (dirofs | 2047) + 1; |
303 |
|
/* debug("realign dirofs = 0x%llx\n", dirofs); */ |
304 |
|
} |
305 |
|
|
306 |
|
res2 = diskimage_access(m, disk_id, disk_type, 0, dirofs, |
307 |
|
dirbuf, 256); |
308 |
|
if (!res2) { |
309 |
|
fatal("Couldn't read the disk image. Aborting.\n"); |
310 |
|
goto ret; |
311 |
|
} |
312 |
|
|
313 |
|
dp = dirbuf; |
314 |
|
len = dp[0]; |
315 |
|
if (len < 2) |
316 |
|
break; |
317 |
|
|
318 |
|
/* |
319 |
|
* TODO: Actually parse the directory entry! |
320 |
|
* |
321 |
|
* Haha, this must be rewritten. |
322 |
|
*/ |
323 |
|
for (i=32; i<len; i++) { |
324 |
|
if (i < len - strlen(filename)) |
325 |
|
if (strncasecmp(filename, (char *)dp + i, |
326 |
|
strlen(filename)) == 0) { |
327 |
|
/* The filename was found somewhere |
328 |
|
in the directory entry. */ |
329 |
|
if (match_entry != NULL) { |
330 |
|
fatal("TODO: I'm too lazy to" |
331 |
|
" implement a correct " |
332 |
|
"directory parser right " |
333 |
|
"now... (BUG)\n"); |
334 |
|
exit(1); |
335 |
|
} |
336 |
|
match_entry = malloc(512); |
337 |
|
if (match_entry == NULL) { |
338 |
|
fatal("out of memory\n"); |
339 |
|
exit(1); |
340 |
|
} |
341 |
|
memcpy(match_entry, dp, 512); |
342 |
|
break; |
343 |
|
} |
344 |
|
} |
345 |
|
|
346 |
|
dirofs += len; |
347 |
|
} |
348 |
|
|
349 |
|
if (match_entry == NULL) { |
350 |
|
char *blah = filename_orig; |
351 |
|
|
352 |
|
fatal("could not find '%s' in /", filename); |
353 |
|
|
354 |
|
/* Print the first part of the filename: */ |
355 |
|
while (blah != filename) |
356 |
|
fatal("%c", *blah++); |
357 |
|
|
358 |
|
fatal("\n"); |
359 |
|
goto ret; |
360 |
|
} |
361 |
|
|
362 |
|
fileofs = match_entry[2] + (match_entry[3] << 8) + |
363 |
|
(match_entry[4] << 16) + (match_entry[5] << 24); |
364 |
|
filelen = match_entry[10] + (match_entry[11] << 8) + |
365 |
|
(match_entry[12] << 16) + (match_entry[13] << 24); |
366 |
|
fileofs *= 2048; |
367 |
|
|
368 |
|
/* debug("filelen=%llx fileofs=%llx\n", (long long)filelen, |
369 |
|
(long long)fileofs); */ |
370 |
|
|
371 |
|
filebuf = malloc(filelen); |
372 |
|
if (filebuf == NULL) { |
373 |
|
fatal("could not allocate %lli bytes to read the file" |
374 |
|
" from the disk image!\n", (long long)filelen); |
375 |
|
goto ret; |
376 |
|
} |
377 |
|
|
378 |
|
tmpfilename = strdup("/tmp/gxemul.XXXXXXXXXXXX"); |
379 |
|
|
380 |
|
debug("extracting %lli bytes into %s\n", |
381 |
|
(long long)filelen, tmpfilename); |
382 |
|
|
383 |
|
res2 = diskimage_access(m, disk_id, disk_type, 0, fileofs, filebuf, |
384 |
|
filelen); |
385 |
|
if (!res2) { |
386 |
|
fatal("could not read the file from the disk image!\n"); |
387 |
|
goto ret; |
388 |
|
} |
389 |
|
|
390 |
|
tmpfile_handle = mkstemp(tmpfilename); |
391 |
|
if (tmpfile_handle < 0) { |
392 |
|
fatal("could not create %s\n", tmpfilename); |
393 |
|
exit(1); |
394 |
|
} |
395 |
|
write(tmpfile_handle, filebuf, filelen); |
396 |
|
close(tmpfile_handle); |
397 |
|
|
398 |
|
/* Add the temporary filename to the load_namesp array: */ |
399 |
|
(*n_loadp)++; |
400 |
|
new_array = malloc(sizeof(char *) * (*n_loadp)); |
401 |
|
if (new_array == NULL) { |
402 |
|
fatal("out of memory\n"); |
403 |
|
exit(1); |
404 |
|
} |
405 |
|
memcpy(new_array, *load_namesp, sizeof(char *) * (*n_loadp)); |
406 |
|
*load_namesp = new_array; |
407 |
|
|
408 |
|
/* This adds a Backspace char in front of the filename; this |
409 |
|
is a special hack which causes the file to be removed once |
410 |
|
it has been loaded. */ |
411 |
|
tmpfilename = realloc(tmpfilename, strlen(tmpfilename) + 2); |
412 |
|
memmove(tmpfilename + 1, tmpfilename, strlen(tmpfilename) + 1); |
413 |
|
tmpfilename[0] = 8; |
414 |
|
|
415 |
|
(*load_namesp)[*n_loadp - 1] = tmpfilename; |
416 |
|
|
417 |
|
res = 1; |
418 |
|
|
419 |
|
ret: |
420 |
|
if (dirbuf != NULL) |
421 |
|
free(dirbuf); |
422 |
|
|
423 |
|
if (filebuf != NULL) |
424 |
|
free(filebuf); |
425 |
|
|
426 |
|
if (match_entry != NULL) |
427 |
|
free(match_entry); |
428 |
|
|
429 |
|
free(filename_orig); |
430 |
|
|
431 |
|
debug_indentation(-iadd); |
432 |
|
return res; |
433 |
|
} |
434 |
|
|
435 |
|
|
436 |
|
/* |
437 |
* load_bootblock(): |
* load_bootblock(): |
438 |
* |
* |
439 |
* 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 |
440 |
* loading a bootblock from a specific disk offset into memory, and executing |
* loading a bootblock from a specific disk offset into memory, and executing |
441 |
* 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 |
442 |
* bootblock to load a kernel. |
* bootblock to load a kernel. |
443 |
|
* |
444 |
|
* Returns 1 on success, 0 on failure. |
445 |
*/ |
*/ |
446 |
static void load_bootblock(struct machine *m, struct cpu *cpu) |
static int load_bootblock(struct machine *m, struct cpu *cpu, |
447 |
|
int *n_loadp, char ***load_namesp) |
448 |
{ |
{ |
449 |
int boot_disk_id; |
int boot_disk_id, boot_disk_type = 0, n_blocks, res, readofs, |
450 |
|
iso_type, retval = 0; |
451 |
unsigned char minibuf[0x20]; |
unsigned char minibuf[0x20]; |
452 |
unsigned char *bootblock_buf; |
unsigned char *bootblock_buf; |
453 |
uint64_t bootblock_offset; |
uint64_t bootblock_offset; |
454 |
uint64_t bootblock_loadaddr, bootblock_pc; |
uint64_t bootblock_loadaddr, bootblock_pc; |
|
int n_blocks, res, readofs; |
|
455 |
|
|
456 |
boot_disk_id = diskimage_bootdev(m); |
boot_disk_id = diskimage_bootdev(m, &boot_disk_type); |
457 |
if (boot_disk_id < 0) |
if (boot_disk_id < 0) |
458 |
return; |
return 0; |
459 |
|
|
460 |
switch (m->machine_type) { |
switch (m->machine_type) { |
461 |
case MACHINE_DEC: |
case MACHINE_DEC: |
475 |
* nr of blocks to read and offset are repeated until nr of |
* nr of blocks to read and offset are repeated until nr of |
476 |
* blocks to read is zero. |
* blocks to read is zero. |
477 |
*/ |
*/ |
478 |
res = diskimage_access(m, boot_disk_id, 0, 0, |
res = diskimage_access(m, boot_disk_id, boot_disk_type, 0, 0, |
479 |
minibuf, sizeof(minibuf)); |
minibuf, sizeof(minibuf)); |
480 |
|
|
481 |
bootblock_loadaddr = minibuf[0x10] + (minibuf[0x11] << 8) |
bootblock_loadaddr = minibuf[0x10] + (minibuf[0x11] << 8) |
502 |
readofs = 0x18; |
readofs = 0x18; |
503 |
|
|
504 |
for (;;) { |
for (;;) { |
505 |
res = diskimage_access(m, boot_disk_id, 0, readofs, |
res = diskimage_access(m, boot_disk_id, boot_disk_type, |
506 |
minibuf, sizeof(minibuf)); |
0, readofs, minibuf, sizeof(minibuf)); |
507 |
if (!res) { |
if (!res) { |
508 |
printf("couldn't read disk?\n"); |
fatal("Couldn't read the disk image. " |
509 |
exit(1); |
"Aborting.\n"); |
510 |
|
return 0; |
511 |
} |
} |
512 |
|
|
513 |
n_blocks = minibuf[0] + (minibuf[1] << 8) |
n_blocks = minibuf[0] + (minibuf[1] << 8) |
532 |
exit(1); |
exit(1); |
533 |
} |
} |
534 |
|
|
535 |
res = diskimage_access(m, boot_disk_id, 0, |
res = diskimage_access(m, boot_disk_id, boot_disk_type, |
536 |
bootblock_offset, bootblock_buf, n_blocks * 512); |
0, bootblock_offset, bootblock_buf, n_blocks * 512); |
537 |
if (!res) { |
if (!res) { |
538 |
fatal("WARNING: could not load bootblocks from" |
fatal("WARNING: could not load bootblocks from" |
539 |
" disk offset 0x%llx\n", |
" disk offset 0x%llx\n", |
549 |
} |
} |
550 |
|
|
551 |
debug(readofs == 0x18? ": no blocks?\n" : " blocks\n"); |
debug(readofs == 0x18? ": no blocks?\n" : " blocks\n"); |
552 |
break; |
return 1; |
553 |
|
|
554 |
case MACHINE_X86: |
case MACHINE_X86: |
555 |
cpu->cd.x86.mode = 16; |
/* TODO: "El Torito" etc? */ |
556 |
cpu->pc = 0x7c00; |
if (diskimage_is_a_cdrom(cpu->machine, boot_disk_id, |
557 |
|
boot_disk_type)) |
558 |
|
break; |
559 |
|
|
560 |
bootblock_buf = malloc(512); |
bootblock_buf = malloc(512); |
561 |
if (bootblock_buf == NULL) { |
if (bootblock_buf == NULL) { |
563 |
exit(1); |
exit(1); |
564 |
} |
} |
565 |
|
|
566 |
res = diskimage_access(m, boot_disk_id, 0, 0, |
debug("loading PC bootsector from %s id %i\n", |
567 |
|
diskimage_types[boot_disk_type], boot_disk_id); |
568 |
|
|
569 |
|
res = diskimage_access(m, boot_disk_id, boot_disk_type, 0, 0, |
570 |
bootblock_buf, 512); |
bootblock_buf, 512); |
571 |
if (!res) { |
if (!res) { |
572 |
printf("Couldn't read the disk image. Aborting.\n"); |
fatal("Couldn't read the disk image. Aborting.\n"); |
573 |
exit(1); |
return 0; |
574 |
} |
} |
575 |
|
|
|
debug("loading PC bootsector from disk %i\n", boot_disk_id); |
|
576 |
if (bootblock_buf[510] != 0x55 || bootblock_buf[511] != 0xaa) |
if (bootblock_buf[510] != 0x55 || bootblock_buf[511] != 0xaa) |
577 |
debug("WARNING! The 0x55,0xAA marker is missing! " |
debug("WARNING! The 0x55,0xAA marker is missing! " |
578 |
"Booting anyway.\n"); |
"Booting anyway.\n"); |
579 |
store_buf(cpu, 0x7c00, (char *)bootblock_buf, 512); |
store_buf(cpu, 0x7c00, (char *)bootblock_buf, 512); |
580 |
free(bootblock_buf); |
free(bootblock_buf); |
|
break; |
|
581 |
|
|
582 |
default: |
return 1; |
583 |
fatal("Booting from disk without a separate kernel " |
} |
584 |
"doesn't work in this emulation mode.\n"); |
|
585 |
|
|
586 |
|
/* |
587 |
|
* Try reading a kernel manually from the disk. The code here |
588 |
|
* does not rely on machine-dependant boot blocks etc. |
589 |
|
*/ |
590 |
|
/* ISO9660: (0x800 bytes at 0x8000) */ |
591 |
|
bootblock_buf = malloc(0x800); |
592 |
|
if (bootblock_buf == NULL) { |
593 |
|
fprintf(stderr, "Out of memory.\n"); |
594 |
exit(1); |
exit(1); |
595 |
} |
} |
596 |
|
|
597 |
|
res = diskimage_access(m, boot_disk_id, boot_disk_type, |
598 |
|
0, 0x8000, bootblock_buf, 0x800); |
599 |
|
if (!res) { |
600 |
|
fatal("Couldn't read the disk image. Aborting.\n"); |
601 |
|
return 0; |
602 |
|
} |
603 |
|
|
604 |
|
iso_type = 0; |
605 |
|
if (strncmp((char *)bootblock_buf+1, "CD001", 5) == 0) |
606 |
|
iso_type = 1; |
607 |
|
if (strncmp((char *)bootblock_buf+1, "CDW01", 5) == 0) |
608 |
|
iso_type = 2; |
609 |
|
if (strncmp((char *)bootblock_buf+1, "CDROM", 5) == 0) |
610 |
|
iso_type = 3; |
611 |
|
|
612 |
|
if (iso_type != 0) { |
613 |
|
/* We can't load a kernel if the name |
614 |
|
isn't specified. */ |
615 |
|
if (cpu->machine->boot_kernel_filename == NULL || |
616 |
|
cpu->machine->boot_kernel_filename[0] == '\0') |
617 |
|
fatal("\nISO9660 filesystem, but no kernel " |
618 |
|
"specified? (Use the -j option.)\n"); |
619 |
|
else |
620 |
|
retval = iso_load_bootblock(m, cpu, boot_disk_id, |
621 |
|
boot_disk_type, iso_type, bootblock_buf, |
622 |
|
n_loadp, load_namesp); |
623 |
|
} |
624 |
|
|
625 |
|
free(bootblock_buf); |
626 |
|
return retval; |
627 |
} |
} |
628 |
|
|
629 |
|
|
715 |
arcbios_add_memory_descriptor(cpu, |
arcbios_add_memory_descriptor(cpu, |
716 |
start, len, ARCBIOS_MEM_LoadedProgram); |
start, len, ARCBIOS_MEM_LoadedProgram); |
717 |
|
|
718 |
scsicontroller = arcbios_get_scsicontroller(); |
scsicontroller = arcbios_get_scsicontroller(m); |
719 |
if (scsicontroller == 0) |
if (scsicontroller == 0) |
720 |
return; |
return; |
721 |
|
|
763 |
snprintf(component_string, |
snprintf(component_string, |
764 |
sizeof(component_string), |
sizeof(component_string), |
765 |
"scsi(0)cdrom(%i)", d->id); |
"scsi(0)cdrom(%i)", d->id); |
766 |
arcbios_add_string_to_component( |
arcbios_add_string_to_component(m, |
767 |
component_string, scsidevice); |
component_string, scsidevice); |
768 |
|
|
769 |
snprintf(component_string, |
snprintf(component_string, |
770 |
sizeof(component_string), |
sizeof(component_string), |
771 |
"scsi(0)cdrom(%i)fdisk(0)", d->id); |
"scsi(0)cdrom(%i)fdisk(0)", d->id); |
772 |
arcbios_add_string_to_component( |
arcbios_add_string_to_component(m, |
773 |
component_string, scsidisk); |
component_string, scsidisk); |
774 |
} else { |
} else { |
775 |
snprintf(component_string, |
snprintf(component_string, |
776 |
sizeof(component_string), |
sizeof(component_string), |
777 |
"scsi(0)disk(%i)", d->id); |
"scsi(0)disk(%i)", d->id); |
778 |
arcbios_add_string_to_component( |
arcbios_add_string_to_component(m, |
779 |
component_string, scsidevice); |
component_string, scsidevice); |
780 |
|
|
781 |
snprintf(component_string, |
snprintf(component_string, |
782 |
sizeof(component_string), |
sizeof(component_string), |
783 |
"scsi(0)disk(%i)rdisk(0)", d->id); |
"scsi(0)disk(%i)rdisk(0)", d->id); |
784 |
arcbios_add_string_to_component( |
arcbios_add_string_to_component(m, |
785 |
component_string, scsidisk); |
component_string, scsidisk); |
786 |
} |
} |
787 |
} |
} |
807 |
struct emul *emul; |
struct emul *emul; |
808 |
struct cpu *cpu; |
struct cpu *cpu; |
809 |
int i, iadd=4; |
int i, iadd=4; |
810 |
uint64_t addr, memory_amount, entrypoint = 0, gp = 0, toc = 0; |
uint64_t memory_amount, entrypoint = 0, gp = 0, toc = 0; |
811 |
int byte_order; |
int byte_order; |
812 |
|
|
813 |
emul = m->emul; |
emul = m->emul; |
912 |
x11_init(m); |
x11_init(m); |
913 |
|
|
914 |
/* Fill memory with random bytes: */ |
/* Fill memory with random bytes: */ |
|
/* TODO: This is MIPS-specific! */ |
|
915 |
if (m->random_mem_contents) { |
if (m->random_mem_contents) { |
916 |
for (i=0; i<m->physical_ram_in_mb * 1048576; i+=256) { |
for (i=0; i<m->physical_ram_in_mb * 1048576; i+=256) { |
917 |
unsigned char data[256]; |
unsigned char data[256]; |
918 |
unsigned int j; |
unsigned int j; |
919 |
for (j=0; j<sizeof(data); j++) |
for (j=0; j<sizeof(data); j++) |
920 |
data[j] = random() & 255; |
data[j] = random() & 255; |
921 |
addr = 0xffffffff80000000ULL + i; |
cpu->memory_rw(cpu, m->memory, i, data, sizeof(data), |
922 |
cpu->memory_rw(cpu, m->memory, addr, data, sizeof(data), |
MEM_WRITE, CACHE_NONE | NO_EXCEPTIONS | PHYSICAL); |
|
MEM_WRITE, CACHE_NONE | NO_EXCEPTIONS); |
|
923 |
} |
} |
924 |
} |
} |
925 |
|
|
|
if ((m->machine_type == MACHINE_ARC || |
|
|
m->machine_type == MACHINE_SGI) && m->prom_emulation) |
|
|
arcbios_init(); |
|
|
|
|
926 |
if (m->userland_emul != NULL) { |
if (m->userland_emul != NULL) { |
927 |
/* |
/* |
928 |
* For userland-only emulation, no machine emulation |
* For userland-only emulation, no machine emulation |
939 |
|
|
940 |
/* Load files (ROM code, boot code, ...) into memory: */ |
/* Load files (ROM code, boot code, ...) into memory: */ |
941 |
if (n_load == 0) { |
if (n_load == 0) { |
942 |
if (m->first_diskimage != NULL) |
if (m->first_diskimage != NULL) { |
943 |
load_bootblock(m, cpu); |
if (!load_bootblock(m, cpu, &n_load, &load_names)) { |
944 |
else { |
fprintf(stderr, "\nNo executable files were" |
945 |
|
" specified, and booting directly from disk" |
946 |
|
" failed.\n"); |
947 |
|
exit(1); |
948 |
|
} |
949 |
|
} else { |
950 |
fprintf(stderr, "No executable file(s) loaded, and " |
fprintf(stderr, "No executable file(s) loaded, and " |
951 |
"we are not booting directly from a disk image." |
"we are not booting directly from a disk image." |
952 |
"\nAborting.\n"); |
"\nAborting.\n"); |
955 |
} |
} |
956 |
|
|
957 |
while (n_load > 0) { |
while (n_load > 0) { |
958 |
|
FILE *tmp_f; |
959 |
|
char *name_to_load = *load_names; |
960 |
|
int remove_after_load = 0; |
961 |
|
|
962 |
|
/* Special hack for removing temporary files: */ |
963 |
|
if (name_to_load[0] == 8) { |
964 |
|
name_to_load ++; |
965 |
|
remove_after_load = 1; |
966 |
|
} |
967 |
|
|
968 |
|
/* |
969 |
|
* Another special hack for temporary files; running gunzip |
970 |
|
* on them, if they have a gzip header. TODO: Change this |
971 |
|
* into some kind of generic support for gzipped files! |
972 |
|
*/ |
973 |
|
tmp_f = fopen(name_to_load, "r"); |
974 |
|
if (tmp_f != NULL) { |
975 |
|
unsigned char buf[2]; /* gzip header */ |
976 |
|
memset(buf, 0, sizeof(buf)); |
977 |
|
fread(buf, 1, sizeof(buf), tmp_f); |
978 |
|
if (buf[0]==0x1f && buf[1]==0x8b) { |
979 |
|
char *zz = malloc(strlen(name_to_load)*2 + 100); |
980 |
|
debug("gunziping %s\n", name_to_load); |
981 |
|
sprintf(zz, "mv %s %s.gz", name_to_load, |
982 |
|
name_to_load); |
983 |
|
system(zz); |
984 |
|
sprintf(zz, "gunzip %s.gz", name_to_load); |
985 |
|
system(zz); |
986 |
|
free(zz); |
987 |
|
} |
988 |
|
fclose(tmp_f); |
989 |
|
} |
990 |
|
|
991 |
|
/* Special things required _before_ loading the file: */ |
992 |
|
switch (m->arch) { |
993 |
|
case ARCH_X86: |
994 |
|
/* |
995 |
|
* X86 machines normally don't need to load any files, |
996 |
|
* they can boot from disk directly. Therefore, an x86 |
997 |
|
* machine usually boots up in 16-bit real mode. When |
998 |
|
* loading a 32-bit (or even 64-bit) ELF, that's not |
999 |
|
* very nice, hence this special case. |
1000 |
|
*/ |
1001 |
|
pc_bios_simple_pmode_setup(cpu); |
1002 |
|
break; |
1003 |
|
} |
1004 |
|
|
1005 |
byte_order = NO_BYTE_ORDER_OVERRIDE; |
byte_order = NO_BYTE_ORDER_OVERRIDE; |
1006 |
|
|
1007 |
file_load(m, m->memory, *load_names, &entrypoint, |
/* |
1008 |
|
* Load the file: :-) |
1009 |
|
*/ |
1010 |
|
file_load(m, m->memory, name_to_load, &entrypoint, |
1011 |
m->arch, &gp, &byte_order, &toc); |
m->arch, &gp, &byte_order, &toc); |
1012 |
|
|
1013 |
|
if (remove_after_load) { |
1014 |
|
debug("removing %s\n", name_to_load); |
1015 |
|
unlink(name_to_load); |
1016 |
|
} |
1017 |
|
|
1018 |
if (byte_order != NO_BYTE_ORDER_OVERRIDE) |
if (byte_order != NO_BYTE_ORDER_OVERRIDE) |
1019 |
cpu->byte_order = byte_order; |
cpu->byte_order = byte_order; |
1020 |
|
|
1035 |
break; |
break; |
1036 |
|
|
1037 |
case ARCH_PPC: |
case ARCH_PPC: |
1038 |
|
/* See http://www.linuxbase.org/spec/ELF/ppc64/ |
1039 |
|
spec/x458.html for more info. */ |
1040 |
cpu->cd.ppc.gpr[2] = toc; |
cpu->cd.ppc.gpr[2] = toc; |
1041 |
|
/* TODO */ |
1042 |
break; |
break; |
1043 |
|
|
1044 |
case ARCH_ALPHA: |
case ARCH_ALPHA: |
1047 |
case ARCH_URISC: |
case ARCH_URISC: |
1048 |
break; |
break; |
1049 |
|
|
1050 |
|
case ARCH_ARM: |
1051 |
|
cpu->pc &= 0xffffffff; |
1052 |
|
break; |
1053 |
|
|
1054 |
case ARCH_X86: |
case ARCH_X86: |
1055 |
/* |
/* |
1056 |
* NOTE: The toc field is used to indicate an ELF64 |
* NOTE: The toc field is used to indicate an ELF32 |
1057 |
* load, on AMD64! |
* or ELF64 load. |
1058 |
*/ |
*/ |
1059 |
if (toc != 0) { |
switch (toc) { |
1060 |
cpu->cd.x86.mode = 64; |
case 0: /* 16-bit? TODO */ |
1061 |
} else |
cpu->pc &= 0xffffffffULL; |
1062 |
|
break; |
1063 |
|
case 1: /* 32-bit. */ |
1064 |
cpu->pc &= 0xffffffffULL; |
cpu->pc &= 0xffffffffULL; |
1065 |
|
break; |
1066 |
|
case 2: /* 64-bit: TODO */ |
1067 |
|
fatal("64-bit x86 load. TODO\n"); |
1068 |
|
exit(1); |
1069 |
|
} |
1070 |
break; |
break; |
1071 |
|
|
1072 |
default: |
default: |
1158 |
else |
else |
1159 |
debug("0x%016llx", (long long)entrypoint); |
debug("0x%016llx", (long long)entrypoint); |
1160 |
break; |
break; |
1161 |
|
case ARCH_ARM: |
1162 |
|
/* ARM cpus aren't 64-bit: */ |
1163 |
|
debug("0x%08x", (int)entrypoint); |
1164 |
|
break; |
1165 |
case ARCH_URISC: |
case ARCH_URISC: |
1166 |
{ |
{ |
1167 |
char tmps[100]; |
char tmps[100]; |
1186 |
} |
} |
1187 |
break; |
break; |
1188 |
case ARCH_X86: |
case ARCH_X86: |
1189 |
if (cpu->cd.x86.mode == 16) |
debug("0x%04x:0x%llx", cpu->cd.x86.s[X86_S_CS], |
1190 |
debug("0x%04x:0x%04x", cpu->cd.x86.s[X86_S_CS], |
(long long)cpu->pc); |
|
(int)cpu->pc); |
|
|
else if (cpu->cd.x86.mode == 32) |
|
|
debug("0x%08x", (int)cpu->pc); |
|
|
else |
|
|
debug("0x%016llx", (long long)cpu->pc); |
|
1191 |
break; |
break; |
1192 |
default: |
default: |
1193 |
debug("0x%016llx", (long long)cpu->pc); |
debug("0x%016llx", (long long)cpu->pc); |