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aad3b3cb HPN |
1 | /* Test-driver for the remote-virtual-component simulator framework |
2 | for GDB, the GNU Debugger. | |
3 | ||
dc3cf14f | 4 | Copyright 2006, 2007, 2008, 2009, 2010 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 | |
4744ac1b | 10 | the Free Software Foundation; either version 3 of the License, or |
aad3b3cb HPN |
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 | |
4744ac1b | 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
aad3b3cb HPN |
20 | |
21 | /* Avoid any problems whatsoever building this program if we're not | |
22 | also building hardware support. */ | |
23 | ||
24 | #if !WITH_HW | |
25 | int | |
26 | main (int argc, char *argv[]) | |
27 | { | |
28 | return 2; | |
29 | } | |
30 | #else | |
31 | ||
32 | #ifdef HAVE_CONFIG_H | |
33 | #include "cconfig.h" | |
34 | #include "tconfig.h" | |
35 | #endif | |
36 | ||
37 | #include "getopt.h" | |
38 | #include "libiberty.h" | |
39 | ||
40 | #define _GNU_SOURCE | |
41 | #include <stdio.h> | |
42 | ||
43 | #ifdef HAVE_UNISTD_H | |
44 | #include <unistd.h> | |
45 | #endif | |
46 | #ifdef HAVE_STDLIB_H | |
47 | #include <stdlib.h> | |
48 | #endif | |
49 | #ifdef HAVE_STRING_H | |
50 | #include <string.h> | |
51 | #endif | |
52 | ||
53 | #ifdef HAVE_SYS_TYPES_H | |
54 | #include <sys/types.h> | |
55 | #endif | |
56 | ||
57 | #ifdef HAVE_SYS_TIME_H | |
58 | #include <sys/time.h> | |
59 | #endif | |
60 | ||
61 | #ifdef HAVE_SYS_SELECT_H | |
62 | #include <sys/select.h> | |
63 | #endif | |
64 | ||
65 | #ifdef HAVE_ERRNO_H | |
66 | #include <errno.h> | |
67 | #endif | |
68 | ||
69 | /* Not guarded in dv-sockser.c, so why here. */ | |
70 | #include <netinet/in.h> | |
71 | #include <arpa/inet.h> | |
72 | #include <netdb.h> | |
73 | #include <sys/socket.h> | |
74 | ||
75 | enum rv_command { | |
76 | RV_READ_CMD = 0, | |
77 | RV_WRITE_CMD = 1, | |
78 | RV_IRQ_CMD = 2, | |
79 | RV_MEM_RD_CMD = 3, | |
80 | RV_MEM_WR_CMD = 4, | |
81 | RV_MBOX_HANDLE_CMD = 5, | |
82 | RV_MBOX_PUT_CMD = 6, | |
83 | RV_WATCHDOG_CMD = 7 | |
84 | }; | |
85 | ||
86 | enum opts { OPT_PORT = 1, OPT_TIMEOUT, OPT_VERBOSE }; | |
87 | ||
88 | struct option longopts[] = | |
89 | { | |
90 | {"port", required_argument, NULL, OPT_PORT}, | |
91 | {"timeout", required_argument, NULL, OPT_TIMEOUT}, | |
92 | {"verbose", no_argument, NULL, OPT_VERBOSE}, | |
93 | {NULL, 0, NULL, 0} | |
94 | }; | |
95 | ||
96 | int port = 10000; | |
97 | time_t timeout = 30000; | |
98 | char *progname = "(unknown)"; | |
99 | int verbose = 0; | |
100 | ||
101 | /* Required forward-declarations. */ | |
102 | static void handle_input_file (int, char *); | |
103 | ||
104 | /* Set up a "server" listening to the port in PORT for a raw TCP | |
105 | connection. Return a file descriptor for the connection or -1 on | |
106 | error. */ | |
107 | ||
108 | int setupsocket (void) | |
109 | { | |
110 | int s; | |
111 | socklen_t len; | |
112 | int reuse = 1; | |
113 | struct sockaddr_in sa_in; | |
114 | struct sockaddr_in from; | |
115 | ||
116 | len = sizeof (from); | |
117 | memset (&from, 0, len); | |
118 | memset (&sa_in, 0, sizeof (sa_in)); | |
119 | ||
120 | s = socket (AF_INET, SOCK_STREAM, 0); | |
363a6e9f | 121 | if (s == -1) |
aad3b3cb HPN |
122 | return -1; |
123 | ||
124 | if (setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof reuse) != 0) | |
125 | return -1; | |
126 | ||
127 | sa_in.sin_port = htons (port); | |
128 | sa_in.sin_family = AF_INET; | |
129 | ||
130 | if (bind (s, (struct sockaddr *) & sa_in, sizeof sa_in) < 0) | |
131 | return -1; | |
132 | ||
133 | if (listen (s, 1) < 0) | |
134 | return -1; | |
135 | ||
136 | return accept (s, (struct sockaddr *) &from, &len); | |
137 | } | |
138 | ||
139 | /* Basic host-to-little-endian 32-bit value. Could use the BFD | |
140 | machinery, but let's avoid it for this only dependency. */ | |
141 | ||
142 | static void | |
143 | h2le32 (unsigned char *dest, unsigned int val) | |
144 | { | |
145 | dest[0] = val & 255; | |
146 | dest[1] = (val >> 8) & 255; | |
147 | dest[2] = (val >> 16) & 255; | |
148 | dest[3] = (val >> 24) & 255; | |
149 | } | |
150 | ||
151 | /* Send a blob of data. */ | |
152 | ||
153 | static void | |
154 | send_output (int fd, unsigned char *buf, int nbytes) | |
155 | { | |
156 | while (nbytes > 0) | |
157 | { | |
158 | ssize_t written = write (fd, buf, nbytes); | |
159 | if (written < 0) | |
160 | { | |
161 | fprintf (stderr, "%s: write to socket failed: %s\n", | |
162 | progname, strerror (errno)); | |
163 | exit (2); | |
164 | } | |
165 | nbytes -= written; | |
166 | } | |
167 | } | |
168 | ||
169 | /* Receive a blob of data, NBYTES large. Compare to the first NCOMP | |
170 | bytes of BUF; if not a match, write error message to stderr and | |
171 | exit (2). Else put it in buf. */ | |
172 | ||
173 | static void | |
174 | expect_input (int fd, unsigned char *buf, int nbytes, int ncomp) | |
175 | { | |
176 | unsigned char byt; | |
177 | int i; | |
178 | ||
179 | for (i = 0; i < nbytes; i++) | |
180 | { | |
181 | int r; | |
182 | ||
183 | do | |
184 | { | |
185 | errno = 0; | |
186 | r = read (fd, &byt, 1); | |
187 | } | |
188 | while (r <= 0 && (r == 0 || errno == EAGAIN)); | |
189 | ||
190 | if (r != 1) | |
191 | { | |
192 | fprintf (stderr, "%s: read from socket failed: %s", | |
193 | progname, strerror (errno)); | |
194 | exit (2); | |
195 | } | |
196 | ||
197 | if (i < ncomp && byt != buf[i]) | |
198 | { | |
199 | int j; | |
200 | fprintf (stderr, "%s: unexpected input,\n ", progname); | |
201 | if (i == 0) | |
202 | fprintf (stderr, "nothing,"); | |
203 | else | |
204 | for (j = 0; j < i; j++) | |
205 | fprintf (stderr, "%02x", buf[j]); | |
206 | fprintf (stderr, "\nthen %02x instead of %02x\n", byt, buf[i]); | |
207 | exit (2); | |
208 | } | |
209 | else | |
210 | buf[i] = byt; | |
211 | } | |
212 | } | |
213 | ||
214 | /* Handle everything about a nil-terminated line of input. | |
215 | Call exit (2) on error with error text on stderr. */ | |
216 | ||
217 | static void | |
218 | handle_input (int fd, char *buf, char *fname, int lineno) | |
219 | { | |
220 | int nbytes = 0; | |
221 | int n = -1; | |
222 | char *s = buf + 2; | |
223 | unsigned int data; | |
224 | static unsigned char bytes[1024]; | |
225 | int i; | |
226 | ||
227 | memset (bytes, 0, sizeof bytes); | |
228 | lineno++; | |
229 | ||
230 | if (buf[1] != ',') | |
231 | goto syntax_error; | |
232 | ||
233 | switch (buf[0]) | |
234 | { | |
235 | /* Comment characters and empty lines. */ | |
236 | case 0: case '!': case '#': | |
237 | break; | |
238 | ||
239 | /* Include another file. */ | |
240 | case '@': | |
241 | handle_input_file (fd, s); | |
242 | break; | |
243 | ||
244 | /* Raw input (to be expected). */ | |
245 | case 'i': | |
246 | do | |
247 | { | |
248 | n = -1; | |
249 | sscanf (s, "%02x%n", &data, &n); | |
250 | s += n; | |
251 | if (n > 0) | |
252 | bytes[nbytes++] = data; | |
253 | } | |
254 | while (n > 0); | |
255 | expect_input (fd, bytes, nbytes, nbytes); | |
256 | if (verbose) | |
257 | { | |
258 | printf ("i,"); | |
259 | for (i = 0; i < nbytes; i++) | |
260 | printf ("%02x", bytes[i]); | |
261 | printf ("\n"); | |
262 | } | |
263 | break; | |
264 | ||
265 | /* Raw output (to be written). */ | |
266 | case 'o': | |
267 | do | |
268 | { | |
269 | n = -1; | |
270 | sscanf (s, "%02x%n", &data, &n); | |
271 | if (n > 0) | |
272 | { | |
273 | s += n; | |
274 | bytes[nbytes++] = data; | |
275 | } | |
276 | } | |
277 | while (n > 0); | |
278 | if (*s != 0) | |
279 | goto syntax_error; | |
280 | send_output (fd, bytes, nbytes); | |
281 | if (verbose) | |
282 | { | |
283 | printf ("o,"); | |
284 | for (i = 0; i < nbytes; i++) | |
285 | printf ("%02x", bytes[i]); | |
286 | printf ("\n"); | |
287 | } | |
288 | break; | |
289 | ||
290 | /* Read a register. */ | |
291 | case 'r': | |
292 | { | |
293 | unsigned int addr; | |
294 | sscanf (s, "%x,%x%n", &addr, &data, &n); | |
295 | if (n < 0 || s[n] != 0) | |
296 | goto syntax_error; | |
297 | bytes[0] = 11; | |
298 | bytes[1] = 0; | |
299 | bytes[2] = RV_READ_CMD; | |
300 | h2le32 (bytes + 3, addr); | |
301 | expect_input (fd, bytes, 11, 7); | |
302 | h2le32 (bytes + 7, data); | |
303 | send_output (fd, bytes, 11); | |
304 | if (verbose) | |
305 | printf ("r,%x,%x\n", addr, data); | |
306 | } | |
307 | break; | |
308 | ||
309 | /* Write a register. */ | |
310 | case 'w': | |
311 | { | |
312 | unsigned int addr; | |
313 | sscanf (s, "%x,%x%n", &addr, &data, &n); | |
314 | if (n < 0 || s[n] != 0) | |
315 | goto syntax_error; | |
316 | bytes[0] = 11; | |
317 | bytes[1] = 0; | |
318 | bytes[2] = RV_WRITE_CMD; | |
319 | h2le32 (bytes + 3, addr); | |
320 | h2le32 (bytes + 7, data); | |
321 | expect_input (fd, bytes, 11, 11); | |
322 | send_output (fd, bytes, 11); | |
323 | if (verbose) | |
324 | printf ("w,%x,%x\n", addr, data); | |
325 | } | |
326 | break; | |
327 | ||
328 | /* Wait for some milliseconds. */ | |
329 | case 't': | |
330 | { | |
331 | int del = 0; | |
332 | struct timeval to; | |
333 | sscanf (s, "%d%n", &del, &n); | |
334 | if (n < 0 || s[n] != 0 || del == 0) | |
335 | goto syntax_error; | |
336 | ||
337 | to.tv_sec = del / 1000; | |
338 | to.tv_usec = (del % 1000) * 1000; | |
339 | ||
340 | if (select (0, NULL, NULL, NULL, &to) != 0) | |
341 | { | |
342 | fprintf (stderr, "%s: problem waiting for %d ms:\n %s\n", | |
343 | progname, del, strerror (errno)); | |
344 | exit (2); | |
345 | } | |
346 | if (verbose) | |
347 | printf ("t,%d\n", del); | |
348 | } | |
349 | break; | |
350 | ||
351 | /* Expect a watchdog command. */ | |
352 | case 'W': | |
353 | if (*s != 0) | |
354 | goto syntax_error; | |
355 | bytes[0] = 3; | |
356 | bytes[1] = 0; | |
357 | bytes[2] = RV_WATCHDOG_CMD; | |
358 | expect_input (fd, bytes, 3, 3); | |
359 | if (verbose) | |
360 | printf ("W\n"); | |
361 | break; | |
362 | ||
363 | /* Send an IRQ notification. */ | |
364 | case 'I': | |
365 | sscanf (s, "%x%n", &data, &n); | |
366 | if (n < 0 || s[n] != 0) | |
367 | goto syntax_error; | |
368 | bytes[0] = 7; | |
369 | bytes[1] = 0; | |
370 | bytes[2] = RV_IRQ_CMD; | |
371 | h2le32 (bytes + 3, data); | |
372 | send_output (fd, bytes, 7); | |
373 | if (verbose) | |
374 | printf ("I,%x\n", data); | |
375 | break; | |
376 | ||
377 | /* DMA store (to CPU). */ | |
378 | case 's': | |
379 | { | |
380 | unsigned int addr; | |
381 | sscanf (s, "%x,%n", &addr, &n); | |
382 | ||
383 | if (n < 0 || s[n] == 0) | |
384 | goto syntax_error; | |
385 | s += n; | |
386 | do | |
387 | { | |
388 | n = -1; | |
389 | sscanf (s, "%02x%n", &data, &n); | |
390 | if (n > 0) | |
391 | { | |
392 | s += n; | |
393 | bytes[11 + nbytes++] = data; | |
394 | } | |
395 | } | |
396 | while (n > 0); | |
397 | ||
398 | if (*s != 0) | |
399 | goto syntax_error; | |
400 | h2le32 (bytes, nbytes + 11); | |
401 | bytes[2] = RV_MEM_WR_CMD; | |
402 | h2le32 (bytes + 3, addr); | |
403 | h2le32 (bytes + 7, nbytes); | |
404 | send_output (fd, bytes, nbytes + 11); | |
405 | if (verbose) | |
406 | { | |
407 | printf ("s,%x,", addr); | |
408 | for (i = 0; i < nbytes; i++) | |
409 | printf ("%02x", bytes[i]); | |
410 | printf ("\n"); | |
411 | } | |
412 | } | |
413 | break; | |
414 | ||
415 | /* DMA load (from CPU). */ | |
416 | case 'l': | |
417 | { | |
418 | unsigned int addr; | |
419 | sscanf (s, "%x,%n", &addr, &n); | |
420 | ||
421 | if (n < 0 || s[n] == 0) | |
422 | goto syntax_error; | |
423 | s += n; | |
424 | do | |
425 | { | |
426 | n = -1; | |
427 | sscanf (s, "%02x%n", &data, &n); | |
428 | if (n > 0) | |
429 | { | |
430 | s += n; | |
431 | bytes[11 + nbytes++] = data; | |
432 | } | |
433 | } | |
434 | while (n > 0); | |
435 | ||
436 | if (*s != 0) | |
437 | goto syntax_error; | |
438 | h2le32 (bytes, nbytes + 11); | |
439 | bytes[0] = 11; | |
440 | bytes[1] = 0; | |
441 | bytes[2] = RV_MEM_RD_CMD; | |
442 | h2le32 (bytes + 3, addr); | |
443 | h2le32 (bytes + 7, nbytes); | |
444 | send_output (fd, bytes, 11); | |
445 | bytes[0] = (nbytes + 11) & 255; | |
446 | bytes[1] = ((nbytes + 11) >> 8) & 255; | |
447 | expect_input (fd, bytes, nbytes + 11, nbytes + 11); | |
448 | if (verbose) | |
449 | { | |
450 | printf ("l,%x,", addr); | |
451 | for (i = 0; i < nbytes; i++) | |
452 | printf ("%02x", bytes[i]); | |
453 | printf ("\n"); | |
454 | } | |
455 | } | |
456 | break; | |
457 | ||
458 | syntax_error: | |
459 | default: | |
460 | fprintf (stderr, "%s: invalid command line in %s:%d:\n %s", | |
461 | progname, fname, lineno, strerror (errno)); | |
462 | exit (2); | |
463 | } | |
464 | } | |
465 | ||
466 | /* Loop over the contents of FNAME, using handle_input to parse each line. | |
467 | Errors to stderr, exit (2). */ | |
468 | ||
469 | static void | |
470 | handle_input_file (int fd, char *fname) | |
471 | { | |
472 | static char buf[2048] = {0}; | |
473 | int lineno = 0; | |
474 | FILE *f = fopen (fname, "r"); | |
475 | ||
476 | if (f == NULL) | |
477 | { | |
478 | fprintf (stderr, "%s: problem opening %s: %s\n", | |
479 | progname, fname, strerror (errno)); | |
480 | exit (2); | |
481 | } | |
482 | ||
483 | /* Let's cut the buffer short, so we always get a newline. */ | |
484 | while (fgets (buf, sizeof (buf) - 1, f) != NULL) | |
485 | { | |
486 | buf[strlen (buf) - 1] = 0; | |
487 | lineno++; | |
488 | handle_input (fd, buf, fname, lineno); | |
489 | } | |
490 | ||
491 | fclose (f); | |
492 | } | |
493 | ||
494 | int | |
495 | main (int argc, char *argv[]) | |
496 | { | |
497 | int optc; | |
498 | int fd; | |
499 | FILE *f; | |
500 | int i; | |
501 | ||
502 | progname = argv[0]; | |
503 | while ((optc = getopt_long (argc, argv, "", longopts, NULL)) != -1) | |
504 | switch (optc) | |
505 | { | |
506 | case OPT_PORT: | |
507 | port = atoi (optarg); | |
508 | break; | |
509 | ||
510 | case OPT_TIMEOUT: | |
511 | timeout = (time_t) atoi (optarg); | |
512 | break; | |
513 | ||
514 | case OPT_VERBOSE: | |
515 | verbose = 1; | |
516 | break; | |
517 | } | |
518 | ||
519 | fd = setupsocket (); | |
363a6e9f | 520 | if (fd == -1) |
aad3b3cb HPN |
521 | { |
522 | fprintf (stderr, "%s: problem setting up the connection: %s\n", | |
523 | progname, strerror (errno)); | |
524 | exit (2); | |
525 | } | |
526 | ||
527 | for (i = optind; i < argc; i++) | |
528 | handle_input_file (fd, argv[i]); | |
529 | ||
530 | /* FIXME: option-controlled test for remaining input? */ | |
531 | close (fd); | |
532 | return 1; | |
533 | } | |
534 | #endif |