1 /* Test-driver for the remote-virtual-component simulator framework
2 for GDB, the GNU Debugger.
4 Copyright 2006-2018 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"
51 #ifdef HAVE_SYS_TYPES_H
52 #include <sys/types.h>
55 #ifdef HAVE_SYS_TIME_H
59 #ifdef HAVE_SYS_SELECT_H
60 #include <sys/select.h>
67 /* Not guarded in dv-sockser.c, so why here. */
68 #include <netinet/in.h>
69 #include <arpa/inet.h>
71 #include <sys/socket.h>
79 RV_MBOX_HANDLE_CMD = 5,
84 enum opts { OPT_PORT = 1, OPT_TIMEOUT, OPT_VERBOSE };
86 struct option longopts[] =
88 {"port", required_argument, NULL, OPT_PORT},
89 {"timeout", required_argument, NULL, OPT_TIMEOUT},
90 {"verbose", no_argument, NULL, OPT_VERBOSE},
95 time_t timeout = 30000;
96 char *progname = "(unknown)";
99 /* Required forward-declarations. */
100 static void handle_input_file (int, char *);
102 /* Set up a "server" listening to the port in PORT for a raw TCP
103 connection. Return a file descriptor for the connection or -1 on
106 static int setupsocket (void)
111 struct sockaddr_in sa_in;
112 struct sockaddr_in from;
115 memset (&from, 0, len);
116 memset (&sa_in, 0, sizeof (sa_in));
118 s = socket (AF_INET, SOCK_STREAM, 0);
122 if (setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof reuse) != 0)
125 sa_in.sin_port = htons (port);
126 sa_in.sin_family = AF_INET;
128 if (bind (s, (struct sockaddr *) & sa_in, sizeof sa_in) < 0)
131 if (listen (s, 1) < 0)
134 return accept (s, (struct sockaddr *) &from, &len);
137 /* Basic host-to-little-endian 32-bit value. Could use the BFD
138 machinery, but let's avoid it for this only dependency. */
141 h2le32 (unsigned char *dest, unsigned int val)
144 dest[1] = (val >> 8) & 255;
145 dest[2] = (val >> 16) & 255;
146 dest[3] = (val >> 24) & 255;
149 /* Send a blob of data. */
152 send_output (int fd, unsigned char *buf, int nbytes)
156 ssize_t written = write (fd, buf, nbytes);
159 fprintf (stderr, "%s: write to socket failed: %s\n",
160 progname, strerror (errno));
167 /* Receive a blob of data, NBYTES large. Compare to the first NCOMP
168 bytes of BUF; if not a match, write error message to stderr and
169 exit (2). Else put it in buf. */
172 expect_input (int fd, unsigned char *buf, int nbytes, int ncomp)
177 for (i = 0; i < nbytes; i++)
184 r = read (fd, &byt, 1);
186 while (r <= 0 && (r == 0 || errno == EAGAIN));
190 fprintf (stderr, "%s: read from socket failed: %s",
191 progname, strerror (errno));
195 if (i < ncomp && byt != buf[i])
198 fprintf (stderr, "%s: unexpected input,\n ", progname);
200 fprintf (stderr, "nothing,");
202 for (j = 0; j < i; j++)
203 fprintf (stderr, "%02x", buf[j]);
204 fprintf (stderr, "\nthen %02x instead of %02x\n", byt, buf[i]);
212 /* Handle everything about a nil-terminated line of input.
213 Call exit (2) on error with error text on stderr. */
216 handle_input (int fd, char *buf, char *fname, int lineno)
222 static unsigned char bytes[1024];
225 memset (bytes, 0, sizeof bytes);
233 /* Comment characters and empty lines. */
234 case 0: case '!': case '#':
237 /* Include another file. */
239 handle_input_file (fd, s);
242 /* Raw input (to be expected). */
247 sscanf (s, "%02x%n", &data, &n);
250 bytes[nbytes++] = data;
253 expect_input (fd, bytes, nbytes, nbytes);
257 for (i = 0; i < nbytes; i++)
258 printf ("%02x", bytes[i]);
263 /* Raw output (to be written). */
268 sscanf (s, "%02x%n", &data, &n);
272 bytes[nbytes++] = data;
278 send_output (fd, bytes, nbytes);
282 for (i = 0; i < nbytes; i++)
283 printf ("%02x", bytes[i]);
288 /* Read a register. */
292 sscanf (s, "%x,%x%n", &addr, &data, &n);
293 if (n < 0 || s[n] != 0)
297 bytes[2] = RV_READ_CMD;
298 h2le32 (bytes + 3, addr);
299 expect_input (fd, bytes, 11, 7);
300 h2le32 (bytes + 7, data);
301 send_output (fd, bytes, 11);
303 printf ("r,%x,%x\n", addr, data);
307 /* Write a register. */
311 sscanf (s, "%x,%x%n", &addr, &data, &n);
312 if (n < 0 || s[n] != 0)
316 bytes[2] = RV_WRITE_CMD;
317 h2le32 (bytes + 3, addr);
318 h2le32 (bytes + 7, data);
319 expect_input (fd, bytes, 11, 11);
320 send_output (fd, bytes, 11);
322 printf ("w,%x,%x\n", addr, data);
326 /* Wait for some milliseconds. */
331 sscanf (s, "%d%n", &del, &n);
332 if (n < 0 || s[n] != 0 || del == 0)
335 to.tv_sec = del / 1000;
336 to.tv_usec = (del % 1000) * 1000;
338 if (select (0, NULL, NULL, NULL, &to) != 0)
340 fprintf (stderr, "%s: problem waiting for %d ms:\n %s\n",
341 progname, del, strerror (errno));
345 printf ("t,%d\n", del);
349 /* Expect a watchdog command. */
355 bytes[2] = RV_WATCHDOG_CMD;
356 expect_input (fd, bytes, 3, 3);
361 /* Send an IRQ notification. */
363 sscanf (s, "%x%n", &data, &n);
364 if (n < 0 || s[n] != 0)
368 bytes[2] = RV_IRQ_CMD;
369 h2le32 (bytes + 3, data);
370 send_output (fd, bytes, 7);
372 printf ("I,%x\n", data);
375 /* DMA store (to CPU). */
379 sscanf (s, "%x,%n", &addr, &n);
381 if (n < 0 || s[n] == 0)
387 sscanf (s, "%02x%n", &data, &n);
391 bytes[11 + nbytes++] = data;
398 h2le32 (bytes, nbytes + 11);
399 bytes[2] = RV_MEM_WR_CMD;
400 h2le32 (bytes + 3, addr);
401 h2le32 (bytes + 7, nbytes);
402 send_output (fd, bytes, nbytes + 11);
405 printf ("s,%x,", addr);
406 for (i = 0; i < nbytes; i++)
407 printf ("%02x", bytes[i]);
413 /* DMA load (from CPU). */
417 sscanf (s, "%x,%n", &addr, &n);
419 if (n < 0 || s[n] == 0)
425 sscanf (s, "%02x%n", &data, &n);
429 bytes[11 + nbytes++] = data;
436 h2le32 (bytes, nbytes + 11);
439 bytes[2] = RV_MEM_RD_CMD;
440 h2le32 (bytes + 3, addr);
441 h2le32 (bytes + 7, nbytes);
442 send_output (fd, bytes, 11);
443 bytes[0] = (nbytes + 11) & 255;
444 bytes[1] = ((nbytes + 11) >> 8) & 255;
445 expect_input (fd, bytes, nbytes + 11, nbytes + 11);
448 printf ("l,%x,", addr);
449 for (i = 0; i < nbytes; i++)
450 printf ("%02x", bytes[i]);
458 fprintf (stderr, "%s: invalid command line in %s:%d:\n %s",
459 progname, fname, lineno, strerror (errno));
464 /* Loop over the contents of FNAME, using handle_input to parse each line.
465 Errors to stderr, exit (2). */
468 handle_input_file (int fd, char *fname)
470 static char buf[2048] = {0};
472 FILE *f = fopen (fname, "r");
476 fprintf (stderr, "%s: problem opening %s: %s\n",
477 progname, fname, strerror (errno));
481 /* Let's cut the buffer short, so we always get a newline. */
482 while (fgets (buf, sizeof (buf) - 1, f) != NULL)
484 buf[strlen (buf) - 1] = 0;
486 handle_input (fd, buf, fname, lineno);
493 main (int argc, char *argv[])
501 while ((optc = getopt_long (argc, argv, "", longopts, NULL)) != -1)
505 port = atoi (optarg);
509 timeout = (time_t) atoi (optarg);
520 fprintf (stderr, "%s: problem setting up the connection: %s\n",
521 progname, strerror (errno));
525 for (i = optind; i < argc; i++)
526 handle_input_file (fd, argv[i]);
528 /* FIXME: option-controlled test for remaining input? */