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aad3b3cb HPN |
1 | /* Test-driver for the remote-virtual-component simulator framework |
2 | for GDB, the GNU Debugger. | |
3 | ||
6aba47ca | 4 | Copyright 2006, 2007 Free Software Foundation, Inc. |
aad3b3cb HPN |
5 | |
6 | This file is part of GDB. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 59 Temple Place - Suite 330, | |
21 | Boston, MA 02111-1307, USA. */ | |
22 | ||
23 | /* Avoid any problems whatsoever building this program if we're not | |
24 | also building hardware support. */ | |
25 | ||
26 | #if !WITH_HW | |
27 | int | |
28 | main (int argc, char *argv[]) | |
29 | { | |
30 | return 2; | |
31 | } | |
32 | #else | |
33 | ||
34 | #ifdef HAVE_CONFIG_H | |
35 | #include "cconfig.h" | |
36 | #include "tconfig.h" | |
37 | #endif | |
38 | ||
39 | #include "getopt.h" | |
40 | #include "libiberty.h" | |
41 | ||
42 | #define _GNU_SOURCE | |
43 | #include <stdio.h> | |
44 | ||
45 | #ifdef HAVE_UNISTD_H | |
46 | #include <unistd.h> | |
47 | #endif | |
48 | #ifdef HAVE_STDLIB_H | |
49 | #include <stdlib.h> | |
50 | #endif | |
51 | #ifdef HAVE_STRING_H | |
52 | #include <string.h> | |
53 | #endif | |
54 | ||
55 | #ifdef HAVE_SYS_TYPES_H | |
56 | #include <sys/types.h> | |
57 | #endif | |
58 | ||
59 | #ifdef HAVE_SYS_TIME_H | |
60 | #include <sys/time.h> | |
61 | #endif | |
62 | ||
63 | #ifdef HAVE_SYS_SELECT_H | |
64 | #include <sys/select.h> | |
65 | #endif | |
66 | ||
67 | #ifdef HAVE_ERRNO_H | |
68 | #include <errno.h> | |
69 | #endif | |
70 | ||
71 | /* Not guarded in dv-sockser.c, so why here. */ | |
72 | #include <netinet/in.h> | |
73 | #include <arpa/inet.h> | |
74 | #include <netdb.h> | |
75 | #include <sys/socket.h> | |
76 | ||
77 | enum rv_command { | |
78 | RV_READ_CMD = 0, | |
79 | RV_WRITE_CMD = 1, | |
80 | RV_IRQ_CMD = 2, | |
81 | RV_MEM_RD_CMD = 3, | |
82 | RV_MEM_WR_CMD = 4, | |
83 | RV_MBOX_HANDLE_CMD = 5, | |
84 | RV_MBOX_PUT_CMD = 6, | |
85 | RV_WATCHDOG_CMD = 7 | |
86 | }; | |
87 | ||
88 | enum opts { OPT_PORT = 1, OPT_TIMEOUT, OPT_VERBOSE }; | |
89 | ||
90 | struct option longopts[] = | |
91 | { | |
92 | {"port", required_argument, NULL, OPT_PORT}, | |
93 | {"timeout", required_argument, NULL, OPT_TIMEOUT}, | |
94 | {"verbose", no_argument, NULL, OPT_VERBOSE}, | |
95 | {NULL, 0, NULL, 0} | |
96 | }; | |
97 | ||
98 | int port = 10000; | |
99 | time_t timeout = 30000; | |
100 | char *progname = "(unknown)"; | |
101 | int verbose = 0; | |
102 | ||
103 | /* Required forward-declarations. */ | |
104 | static void handle_input_file (int, char *); | |
105 | ||
106 | /* Set up a "server" listening to the port in PORT for a raw TCP | |
107 | connection. Return a file descriptor for the connection or -1 on | |
108 | error. */ | |
109 | ||
110 | int setupsocket (void) | |
111 | { | |
112 | int s; | |
113 | socklen_t len; | |
114 | int reuse = 1; | |
115 | struct sockaddr_in sa_in; | |
116 | struct sockaddr_in from; | |
117 | ||
118 | len = sizeof (from); | |
119 | memset (&from, 0, len); | |
120 | memset (&sa_in, 0, sizeof (sa_in)); | |
121 | ||
122 | s = socket (AF_INET, SOCK_STREAM, 0); | |
123 | if (s < 0) | |
124 | return -1; | |
125 | ||
126 | if (setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof reuse) != 0) | |
127 | return -1; | |
128 | ||
129 | sa_in.sin_port = htons (port); | |
130 | sa_in.sin_family = AF_INET; | |
131 | ||
132 | if (bind (s, (struct sockaddr *) & sa_in, sizeof sa_in) < 0) | |
133 | return -1; | |
134 | ||
135 | if (listen (s, 1) < 0) | |
136 | return -1; | |
137 | ||
138 | return accept (s, (struct sockaddr *) &from, &len); | |
139 | } | |
140 | ||
141 | /* Basic host-to-little-endian 32-bit value. Could use the BFD | |
142 | machinery, but let's avoid it for this only dependency. */ | |
143 | ||
144 | static void | |
145 | h2le32 (unsigned char *dest, unsigned int val) | |
146 | { | |
147 | dest[0] = val & 255; | |
148 | dest[1] = (val >> 8) & 255; | |
149 | dest[2] = (val >> 16) & 255; | |
150 | dest[3] = (val >> 24) & 255; | |
151 | } | |
152 | ||
153 | /* Send a blob of data. */ | |
154 | ||
155 | static void | |
156 | send_output (int fd, unsigned char *buf, int nbytes) | |
157 | { | |
158 | while (nbytes > 0) | |
159 | { | |
160 | ssize_t written = write (fd, buf, nbytes); | |
161 | if (written < 0) | |
162 | { | |
163 | fprintf (stderr, "%s: write to socket failed: %s\n", | |
164 | progname, strerror (errno)); | |
165 | exit (2); | |
166 | } | |
167 | nbytes -= written; | |
168 | } | |
169 | } | |
170 | ||
171 | /* Receive a blob of data, NBYTES large. Compare to the first NCOMP | |
172 | bytes of BUF; if not a match, write error message to stderr and | |
173 | exit (2). Else put it in buf. */ | |
174 | ||
175 | static void | |
176 | expect_input (int fd, unsigned char *buf, int nbytes, int ncomp) | |
177 | { | |
178 | unsigned char byt; | |
179 | int i; | |
180 | ||
181 | for (i = 0; i < nbytes; i++) | |
182 | { | |
183 | int r; | |
184 | ||
185 | do | |
186 | { | |
187 | errno = 0; | |
188 | r = read (fd, &byt, 1); | |
189 | } | |
190 | while (r <= 0 && (r == 0 || errno == EAGAIN)); | |
191 | ||
192 | if (r != 1) | |
193 | { | |
194 | fprintf (stderr, "%s: read from socket failed: %s", | |
195 | progname, strerror (errno)); | |
196 | exit (2); | |
197 | } | |
198 | ||
199 | if (i < ncomp && byt != buf[i]) | |
200 | { | |
201 | int j; | |
202 | fprintf (stderr, "%s: unexpected input,\n ", progname); | |
203 | if (i == 0) | |
204 | fprintf (stderr, "nothing,"); | |
205 | else | |
206 | for (j = 0; j < i; j++) | |
207 | fprintf (stderr, "%02x", buf[j]); | |
208 | fprintf (stderr, "\nthen %02x instead of %02x\n", byt, buf[i]); | |
209 | exit (2); | |
210 | } | |
211 | else | |
212 | buf[i] = byt; | |
213 | } | |
214 | } | |
215 | ||
216 | /* Handle everything about a nil-terminated line of input. | |
217 | Call exit (2) on error with error text on stderr. */ | |
218 | ||
219 | static void | |
220 | handle_input (int fd, char *buf, char *fname, int lineno) | |
221 | { | |
222 | int nbytes = 0; | |
223 | int n = -1; | |
224 | char *s = buf + 2; | |
225 | unsigned int data; | |
226 | static unsigned char bytes[1024]; | |
227 | int i; | |
228 | ||
229 | memset (bytes, 0, sizeof bytes); | |
230 | lineno++; | |
231 | ||
232 | if (buf[1] != ',') | |
233 | goto syntax_error; | |
234 | ||
235 | switch (buf[0]) | |
236 | { | |
237 | /* Comment characters and empty lines. */ | |
238 | case 0: case '!': case '#': | |
239 | break; | |
240 | ||
241 | /* Include another file. */ | |
242 | case '@': | |
243 | handle_input_file (fd, s); | |
244 | break; | |
245 | ||
246 | /* Raw input (to be expected). */ | |
247 | case 'i': | |
248 | do | |
249 | { | |
250 | n = -1; | |
251 | sscanf (s, "%02x%n", &data, &n); | |
252 | s += n; | |
253 | if (n > 0) | |
254 | bytes[nbytes++] = data; | |
255 | } | |
256 | while (n > 0); | |
257 | expect_input (fd, bytes, nbytes, nbytes); | |
258 | if (verbose) | |
259 | { | |
260 | printf ("i,"); | |
261 | for (i = 0; i < nbytes; i++) | |
262 | printf ("%02x", bytes[i]); | |
263 | printf ("\n"); | |
264 | } | |
265 | break; | |
266 | ||
267 | /* Raw output (to be written). */ | |
268 | case 'o': | |
269 | do | |
270 | { | |
271 | n = -1; | |
272 | sscanf (s, "%02x%n", &data, &n); | |
273 | if (n > 0) | |
274 | { | |
275 | s += n; | |
276 | bytes[nbytes++] = data; | |
277 | } | |
278 | } | |
279 | while (n > 0); | |
280 | if (*s != 0) | |
281 | goto syntax_error; | |
282 | send_output (fd, bytes, nbytes); | |
283 | if (verbose) | |
284 | { | |
285 | printf ("o,"); | |
286 | for (i = 0; i < nbytes; i++) | |
287 | printf ("%02x", bytes[i]); | |
288 | printf ("\n"); | |
289 | } | |
290 | break; | |
291 | ||
292 | /* Read a register. */ | |
293 | case 'r': | |
294 | { | |
295 | unsigned int addr; | |
296 | sscanf (s, "%x,%x%n", &addr, &data, &n); | |
297 | if (n < 0 || s[n] != 0) | |
298 | goto syntax_error; | |
299 | bytes[0] = 11; | |
300 | bytes[1] = 0; | |
301 | bytes[2] = RV_READ_CMD; | |
302 | h2le32 (bytes + 3, addr); | |
303 | expect_input (fd, bytes, 11, 7); | |
304 | h2le32 (bytes + 7, data); | |
305 | send_output (fd, bytes, 11); | |
306 | if (verbose) | |
307 | printf ("r,%x,%x\n", addr, data); | |
308 | } | |
309 | break; | |
310 | ||
311 | /* Write a register. */ | |
312 | case 'w': | |
313 | { | |
314 | unsigned int addr; | |
315 | sscanf (s, "%x,%x%n", &addr, &data, &n); | |
316 | if (n < 0 || s[n] != 0) | |
317 | goto syntax_error; | |
318 | bytes[0] = 11; | |
319 | bytes[1] = 0; | |
320 | bytes[2] = RV_WRITE_CMD; | |
321 | h2le32 (bytes + 3, addr); | |
322 | h2le32 (bytes + 7, data); | |
323 | expect_input (fd, bytes, 11, 11); | |
324 | send_output (fd, bytes, 11); | |
325 | if (verbose) | |
326 | printf ("w,%x,%x\n", addr, data); | |
327 | } | |
328 | break; | |
329 | ||
330 | /* Wait for some milliseconds. */ | |
331 | case 't': | |
332 | { | |
333 | int del = 0; | |
334 | struct timeval to; | |
335 | sscanf (s, "%d%n", &del, &n); | |
336 | if (n < 0 || s[n] != 0 || del == 0) | |
337 | goto syntax_error; | |
338 | ||
339 | to.tv_sec = del / 1000; | |
340 | to.tv_usec = (del % 1000) * 1000; | |
341 | ||
342 | if (select (0, NULL, NULL, NULL, &to) != 0) | |
343 | { | |
344 | fprintf (stderr, "%s: problem waiting for %d ms:\n %s\n", | |
345 | progname, del, strerror (errno)); | |
346 | exit (2); | |
347 | } | |
348 | if (verbose) | |
349 | printf ("t,%d\n", del); | |
350 | } | |
351 | break; | |
352 | ||
353 | /* Expect a watchdog command. */ | |
354 | case 'W': | |
355 | if (*s != 0) | |
356 | goto syntax_error; | |
357 | bytes[0] = 3; | |
358 | bytes[1] = 0; | |
359 | bytes[2] = RV_WATCHDOG_CMD; | |
360 | expect_input (fd, bytes, 3, 3); | |
361 | if (verbose) | |
362 | printf ("W\n"); | |
363 | break; | |
364 | ||
365 | /* Send an IRQ notification. */ | |
366 | case 'I': | |
367 | sscanf (s, "%x%n", &data, &n); | |
368 | if (n < 0 || s[n] != 0) | |
369 | goto syntax_error; | |
370 | bytes[0] = 7; | |
371 | bytes[1] = 0; | |
372 | bytes[2] = RV_IRQ_CMD; | |
373 | h2le32 (bytes + 3, data); | |
374 | send_output (fd, bytes, 7); | |
375 | if (verbose) | |
376 | printf ("I,%x\n", data); | |
377 | break; | |
378 | ||
379 | /* DMA store (to CPU). */ | |
380 | case 's': | |
381 | { | |
382 | unsigned int addr; | |
383 | sscanf (s, "%x,%n", &addr, &n); | |
384 | ||
385 | if (n < 0 || s[n] == 0) | |
386 | goto syntax_error; | |
387 | s += n; | |
388 | do | |
389 | { | |
390 | n = -1; | |
391 | sscanf (s, "%02x%n", &data, &n); | |
392 | if (n > 0) | |
393 | { | |
394 | s += n; | |
395 | bytes[11 + nbytes++] = data; | |
396 | } | |
397 | } | |
398 | while (n > 0); | |
399 | ||
400 | if (*s != 0) | |
401 | goto syntax_error; | |
402 | h2le32 (bytes, nbytes + 11); | |
403 | bytes[2] = RV_MEM_WR_CMD; | |
404 | h2le32 (bytes + 3, addr); | |
405 | h2le32 (bytes + 7, nbytes); | |
406 | send_output (fd, bytes, nbytes + 11); | |
407 | if (verbose) | |
408 | { | |
409 | printf ("s,%x,", addr); | |
410 | for (i = 0; i < nbytes; i++) | |
411 | printf ("%02x", bytes[i]); | |
412 | printf ("\n"); | |
413 | } | |
414 | } | |
415 | break; | |
416 | ||
417 | /* DMA load (from CPU). */ | |
418 | case 'l': | |
419 | { | |
420 | unsigned int addr; | |
421 | sscanf (s, "%x,%n", &addr, &n); | |
422 | ||
423 | if (n < 0 || s[n] == 0) | |
424 | goto syntax_error; | |
425 | s += n; | |
426 | do | |
427 | { | |
428 | n = -1; | |
429 | sscanf (s, "%02x%n", &data, &n); | |
430 | if (n > 0) | |
431 | { | |
432 | s += n; | |
433 | bytes[11 + nbytes++] = data; | |
434 | } | |
435 | } | |
436 | while (n > 0); | |
437 | ||
438 | if (*s != 0) | |
439 | goto syntax_error; | |
440 | h2le32 (bytes, nbytes + 11); | |
441 | bytes[0] = 11; | |
442 | bytes[1] = 0; | |
443 | bytes[2] = RV_MEM_RD_CMD; | |
444 | h2le32 (bytes + 3, addr); | |
445 | h2le32 (bytes + 7, nbytes); | |
446 | send_output (fd, bytes, 11); | |
447 | bytes[0] = (nbytes + 11) & 255; | |
448 | bytes[1] = ((nbytes + 11) >> 8) & 255; | |
449 | expect_input (fd, bytes, nbytes + 11, nbytes + 11); | |
450 | if (verbose) | |
451 | { | |
452 | printf ("l,%x,", addr); | |
453 | for (i = 0; i < nbytes; i++) | |
454 | printf ("%02x", bytes[i]); | |
455 | printf ("\n"); | |
456 | } | |
457 | } | |
458 | break; | |
459 | ||
460 | syntax_error: | |
461 | default: | |
462 | fprintf (stderr, "%s: invalid command line in %s:%d:\n %s", | |
463 | progname, fname, lineno, strerror (errno)); | |
464 | exit (2); | |
465 | } | |
466 | } | |
467 | ||
468 | /* Loop over the contents of FNAME, using handle_input to parse each line. | |
469 | Errors to stderr, exit (2). */ | |
470 | ||
471 | static void | |
472 | handle_input_file (int fd, char *fname) | |
473 | { | |
474 | static char buf[2048] = {0}; | |
475 | int lineno = 0; | |
476 | FILE *f = fopen (fname, "r"); | |
477 | ||
478 | if (f == NULL) | |
479 | { | |
480 | fprintf (stderr, "%s: problem opening %s: %s\n", | |
481 | progname, fname, strerror (errno)); | |
482 | exit (2); | |
483 | } | |
484 | ||
485 | /* Let's cut the buffer short, so we always get a newline. */ | |
486 | while (fgets (buf, sizeof (buf) - 1, f) != NULL) | |
487 | { | |
488 | buf[strlen (buf) - 1] = 0; | |
489 | lineno++; | |
490 | handle_input (fd, buf, fname, lineno); | |
491 | } | |
492 | ||
493 | fclose (f); | |
494 | } | |
495 | ||
496 | int | |
497 | main (int argc, char *argv[]) | |
498 | { | |
499 | int optc; | |
500 | int fd; | |
501 | FILE *f; | |
502 | int i; | |
503 | ||
504 | progname = argv[0]; | |
505 | while ((optc = getopt_long (argc, argv, "", longopts, NULL)) != -1) | |
506 | switch (optc) | |
507 | { | |
508 | case OPT_PORT: | |
509 | port = atoi (optarg); | |
510 | break; | |
511 | ||
512 | case OPT_TIMEOUT: | |
513 | timeout = (time_t) atoi (optarg); | |
514 | break; | |
515 | ||
516 | case OPT_VERBOSE: | |
517 | verbose = 1; | |
518 | break; | |
519 | } | |
520 | ||
521 | fd = setupsocket (); | |
522 | if (fd < 0) | |
523 | { | |
524 | fprintf (stderr, "%s: problem setting up the connection: %s\n", | |
525 | progname, strerror (errno)); | |
526 | exit (2); | |
527 | } | |
528 | ||
529 | for (i = optind; i < argc; i++) | |
530 | handle_input_file (fd, argv[i]); | |
531 | ||
532 | /* FIXME: option-controlled test for remaining input? */ | |
533 | close (fd); | |
534 | return 1; | |
535 | } | |
536 | #endif |