1 /* Test-driver for the remote-virtual-component simulator framework
2 for GDB, the GNU Debugger.
4 Copyright 2006-2015 Free Software Foundation, Inc.
6 This file is part of GDB.
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 3 of the License, or
11 (at your option) any later version.
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.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>. */
21 /* Avoid any problems whatsoever building this program if we're not
22 also building hardware support. */
26 main (int argc, char *argv[])
37 #include "libiberty.h"
52 #ifdef HAVE_SYS_TYPES_H
53 #include <sys/types.h>
56 #ifdef HAVE_SYS_TIME_H
60 #ifdef HAVE_SYS_SELECT_H
61 #include <sys/select.h>
68 /* Not guarded in dv-sockser.c, so why here. */
69 #include <netinet/in.h>
70 #include <arpa/inet.h>
72 #include <sys/socket.h>
80 RV_MBOX_HANDLE_CMD = 5,
85 enum opts { OPT_PORT = 1, OPT_TIMEOUT, OPT_VERBOSE };
87 struct option longopts[] =
89 {"port", required_argument, NULL, OPT_PORT},
90 {"timeout", required_argument, NULL, OPT_TIMEOUT},
91 {"verbose", no_argument, NULL, OPT_VERBOSE},
96 time_t timeout = 30000;
97 char *progname = "(unknown)";
100 /* Required forward-declarations. */
101 static void handle_input_file (int, char *);
103 /* Set up a "server" listening to the port in PORT for a raw TCP
104 connection. Return a file descriptor for the connection or -1 on
107 int setupsocket (void)
112 struct sockaddr_in sa_in;
113 struct sockaddr_in from;
116 memset (&from, 0, len);
117 memset (&sa_in, 0, sizeof (sa_in));
119 s = socket (AF_INET, SOCK_STREAM, 0);
123 if (setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof reuse) != 0)
126 sa_in.sin_port = htons (port);
127 sa_in.sin_family = AF_INET;
129 if (bind (s, (struct sockaddr *) & sa_in, sizeof sa_in) < 0)
132 if (listen (s, 1) < 0)
135 return accept (s, (struct sockaddr *) &from, &len);
138 /* Basic host-to-little-endian 32-bit value. Could use the BFD
139 machinery, but let's avoid it for this only dependency. */
142 h2le32 (unsigned char *dest, unsigned int val)
145 dest[1] = (val >> 8) & 255;
146 dest[2] = (val >> 16) & 255;
147 dest[3] = (val >> 24) & 255;
150 /* Send a blob of data. */
153 send_output (int fd, unsigned char *buf, int nbytes)
157 ssize_t written = write (fd, buf, nbytes);
160 fprintf (stderr, "%s: write to socket failed: %s\n",
161 progname, strerror (errno));
168 /* Receive a blob of data, NBYTES large. Compare to the first NCOMP
169 bytes of BUF; if not a match, write error message to stderr and
170 exit (2). Else put it in buf. */
173 expect_input (int fd, unsigned char *buf, int nbytes, int ncomp)
178 for (i = 0; i < nbytes; i++)
185 r = read (fd, &byt, 1);
187 while (r <= 0 && (r == 0 || errno == EAGAIN));
191 fprintf (stderr, "%s: read from socket failed: %s",
192 progname, strerror (errno));
196 if (i < ncomp && byt != buf[i])
199 fprintf (stderr, "%s: unexpected input,\n ", progname);
201 fprintf (stderr, "nothing,");
203 for (j = 0; j < i; j++)
204 fprintf (stderr, "%02x", buf[j]);
205 fprintf (stderr, "\nthen %02x instead of %02x\n", byt, buf[i]);
213 /* Handle everything about a nil-terminated line of input.
214 Call exit (2) on error with error text on stderr. */
217 handle_input (int fd, char *buf, char *fname, int lineno)
223 static unsigned char bytes[1024];
226 memset (bytes, 0, sizeof bytes);
234 /* Comment characters and empty lines. */
235 case 0: case '!': case '#':
238 /* Include another file. */
240 handle_input_file (fd, s);
243 /* Raw input (to be expected). */
248 sscanf (s, "%02x%n", &data, &n);
251 bytes[nbytes++] = data;
254 expect_input (fd, bytes, nbytes, nbytes);
258 for (i = 0; i < nbytes; i++)
259 printf ("%02x", bytes[i]);
264 /* Raw output (to be written). */
269 sscanf (s, "%02x%n", &data, &n);
273 bytes[nbytes++] = data;
279 send_output (fd, bytes, nbytes);
283 for (i = 0; i < nbytes; i++)
284 printf ("%02x", bytes[i]);
289 /* Read a register. */
293 sscanf (s, "%x,%x%n", &addr, &data, &n);
294 if (n < 0 || s[n] != 0)
298 bytes[2] = RV_READ_CMD;
299 h2le32 (bytes + 3, addr);
300 expect_input (fd, bytes, 11, 7);
301 h2le32 (bytes + 7, data);
302 send_output (fd, bytes, 11);
304 printf ("r,%x,%x\n", addr, data);
308 /* Write a register. */
312 sscanf (s, "%x,%x%n", &addr, &data, &n);
313 if (n < 0 || s[n] != 0)
317 bytes[2] = RV_WRITE_CMD;
318 h2le32 (bytes + 3, addr);
319 h2le32 (bytes + 7, data);
320 expect_input (fd, bytes, 11, 11);
321 send_output (fd, bytes, 11);
323 printf ("w,%x,%x\n", addr, data);
327 /* Wait for some milliseconds. */
332 sscanf (s, "%d%n", &del, &n);
333 if (n < 0 || s[n] != 0 || del == 0)
336 to.tv_sec = del / 1000;
337 to.tv_usec = (del % 1000) * 1000;
339 if (select (0, NULL, NULL, NULL, &to) != 0)
341 fprintf (stderr, "%s: problem waiting for %d ms:\n %s\n",
342 progname, del, strerror (errno));
346 printf ("t,%d\n", del);
350 /* Expect a watchdog command. */
356 bytes[2] = RV_WATCHDOG_CMD;
357 expect_input (fd, bytes, 3, 3);
362 /* Send an IRQ notification. */
364 sscanf (s, "%x%n", &data, &n);
365 if (n < 0 || s[n] != 0)
369 bytes[2] = RV_IRQ_CMD;
370 h2le32 (bytes + 3, data);
371 send_output (fd, bytes, 7);
373 printf ("I,%x\n", data);
376 /* DMA store (to CPU). */
380 sscanf (s, "%x,%n", &addr, &n);
382 if (n < 0 || s[n] == 0)
388 sscanf (s, "%02x%n", &data, &n);
392 bytes[11 + nbytes++] = data;
399 h2le32 (bytes, nbytes + 11);
400 bytes[2] = RV_MEM_WR_CMD;
401 h2le32 (bytes + 3, addr);
402 h2le32 (bytes + 7, nbytes);
403 send_output (fd, bytes, nbytes + 11);
406 printf ("s,%x,", addr);
407 for (i = 0; i < nbytes; i++)
408 printf ("%02x", bytes[i]);
414 /* DMA load (from CPU). */
418 sscanf (s, "%x,%n", &addr, &n);
420 if (n < 0 || s[n] == 0)
426 sscanf (s, "%02x%n", &data, &n);
430 bytes[11 + nbytes++] = data;
437 h2le32 (bytes, nbytes + 11);
440 bytes[2] = RV_MEM_RD_CMD;
441 h2le32 (bytes + 3, addr);
442 h2le32 (bytes + 7, nbytes);
443 send_output (fd, bytes, 11);
444 bytes[0] = (nbytes + 11) & 255;
445 bytes[1] = ((nbytes + 11) >> 8) & 255;
446 expect_input (fd, bytes, nbytes + 11, nbytes + 11);
449 printf ("l,%x,", addr);
450 for (i = 0; i < nbytes; i++)
451 printf ("%02x", bytes[i]);
459 fprintf (stderr, "%s: invalid command line in %s:%d:\n %s",
460 progname, fname, lineno, strerror (errno));
465 /* Loop over the contents of FNAME, using handle_input to parse each line.
466 Errors to stderr, exit (2). */
469 handle_input_file (int fd, char *fname)
471 static char buf[2048] = {0};
473 FILE *f = fopen (fname, "r");
477 fprintf (stderr, "%s: problem opening %s: %s\n",
478 progname, fname, strerror (errno));
482 /* Let's cut the buffer short, so we always get a newline. */
483 while (fgets (buf, sizeof (buf) - 1, f) != NULL)
485 buf[strlen (buf) - 1] = 0;
487 handle_input (fd, buf, fname, lineno);
494 main (int argc, char *argv[])
502 while ((optc = getopt_long (argc, argv, "", longopts, NULL)) != -1)
506 port = atoi (optarg);
510 timeout = (time_t) atoi (optarg);
521 fprintf (stderr, "%s: problem setting up the connection: %s\n",
522 progname, strerror (errno));
526 for (i = optind; i < argc; i++)
527 handle_input_file (fd, argv[i]);
529 /* FIXME: option-controlled test for remaining input? */