1 /* Test-driver for the remote-virtual-component simulator framework
2 for GDB, the GNU Debugger.
4 Copyright 2006-2022 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[])
32 /* This must come before any other includes. */
36 #include "libiberty.h"
45 #ifdef HAVE_SYS_TYPES_H
46 #include <sys/types.h>
53 /* Not guarded in dv-sockser.c, so why here. */
54 #include <netinet/in.h>
55 #include <arpa/inet.h>
57 #include <sys/select.h>
58 #include <sys/socket.h>
66 RV_MBOX_HANDLE_CMD = 5,
71 enum opts { OPT_PORT = 1, OPT_TIMEOUT, OPT_VERBOSE };
73 struct option longopts[] =
75 {"port", required_argument, NULL, OPT_PORT},
76 {"timeout", required_argument, NULL, OPT_TIMEOUT},
77 {"verbose", no_argument, NULL, OPT_VERBOSE},
82 time_t timeout = 30000;
83 char *progname = "(unknown)";
86 /* Required forward-declarations. */
87 static void handle_input_file (int, char *);
89 /* Set up a "server" listening to the port in PORT for a raw TCP
90 connection. Return a file descriptor for the connection or -1 on
93 static int setupsocket (void)
98 struct sockaddr_in sa_in;
99 struct sockaddr_in from;
102 memset (&from, 0, len);
103 memset (&sa_in, 0, sizeof (sa_in));
105 s = socket (AF_INET, SOCK_STREAM, 0);
109 if (setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof reuse) != 0)
112 sa_in.sin_port = htons (port);
113 sa_in.sin_family = AF_INET;
115 if (bind (s, (struct sockaddr *) & sa_in, sizeof sa_in) < 0)
118 if (listen (s, 1) < 0)
121 return accept (s, (struct sockaddr *) &from, &len);
124 /* Basic host-to-little-endian 32-bit value. Could use the BFD
125 machinery, but let's avoid it for this only dependency. */
128 h2le32 (unsigned char *dest, unsigned int val)
131 dest[1] = (val >> 8) & 255;
132 dest[2] = (val >> 16) & 255;
133 dest[3] = (val >> 24) & 255;
136 /* Send a blob of data. */
139 send_output (int fd, unsigned char *buf, int nbytes)
143 ssize_t written = write (fd, buf, nbytes);
146 fprintf (stderr, "%s: write to socket failed: %s\n",
147 progname, strerror (errno));
154 /* Receive a blob of data, NBYTES large. Compare to the first NCOMP
155 bytes of BUF; if not a match, write error message to stderr and
156 exit (2). Else put it in buf. */
159 expect_input (int fd, unsigned char *buf, int nbytes, int ncomp)
164 for (i = 0; i < nbytes; i++)
171 r = read (fd, &byt, 1);
173 while (r <= 0 && (r == 0 || errno == EAGAIN));
177 fprintf (stderr, "%s: read from socket failed: %s",
178 progname, strerror (errno));
182 if (i < ncomp && byt != buf[i])
185 fprintf (stderr, "%s: unexpected input,\n ", progname);
187 fprintf (stderr, "nothing,");
189 for (j = 0; j < i; j++)
190 fprintf (stderr, "%02x", buf[j]);
191 fprintf (stderr, "\nthen %02x instead of %02x\n", byt, buf[i]);
199 /* Handle everything about a nil-terminated line of input.
200 Call exit (2) on error with error text on stderr. */
203 handle_input (int fd, char *buf, char *fname, int lineno)
209 static unsigned char bytes[1024];
212 memset (bytes, 0, sizeof bytes);
220 /* Comment characters and empty lines. */
221 case 0: case '!': case '#':
224 /* Include another file. */
226 handle_input_file (fd, s);
229 /* Raw input (to be expected). */
234 sscanf (s, "%02x%n", &data, &n);
237 bytes[nbytes++] = data;
240 expect_input (fd, bytes, nbytes, nbytes);
244 for (i = 0; i < nbytes; i++)
245 printf ("%02x", bytes[i]);
250 /* Raw output (to be written). */
255 sscanf (s, "%02x%n", &data, &n);
259 bytes[nbytes++] = data;
265 send_output (fd, bytes, nbytes);
269 for (i = 0; i < nbytes; i++)
270 printf ("%02x", bytes[i]);
275 /* Read a register. */
279 sscanf (s, "%x,%x%n", &addr, &data, &n);
280 if (n < 0 || s[n] != 0)
284 bytes[2] = RV_READ_CMD;
285 h2le32 (bytes + 3, addr);
286 expect_input (fd, bytes, 11, 7);
287 h2le32 (bytes + 7, data);
288 send_output (fd, bytes, 11);
290 printf ("r,%x,%x\n", addr, data);
294 /* Write a register. */
298 sscanf (s, "%x,%x%n", &addr, &data, &n);
299 if (n < 0 || s[n] != 0)
303 bytes[2] = RV_WRITE_CMD;
304 h2le32 (bytes + 3, addr);
305 h2le32 (bytes + 7, data);
306 expect_input (fd, bytes, 11, 11);
307 send_output (fd, bytes, 11);
309 printf ("w,%x,%x\n", addr, data);
313 /* Wait for some milliseconds. */
318 sscanf (s, "%d%n", &del, &n);
319 if (n < 0 || s[n] != 0 || del == 0)
322 to.tv_sec = del / 1000;
323 to.tv_usec = (del % 1000) * 1000;
325 if (select (0, NULL, NULL, NULL, &to) != 0)
327 fprintf (stderr, "%s: problem waiting for %d ms:\n %s\n",
328 progname, del, strerror (errno));
332 printf ("t,%d\n", del);
336 /* Expect a watchdog command. */
342 bytes[2] = RV_WATCHDOG_CMD;
343 expect_input (fd, bytes, 3, 3);
348 /* Send an IRQ notification. */
350 sscanf (s, "%x%n", &data, &n);
351 if (n < 0 || s[n] != 0)
355 bytes[2] = RV_IRQ_CMD;
356 h2le32 (bytes + 3, data);
357 send_output (fd, bytes, 7);
359 printf ("I,%x\n", data);
362 /* DMA store (to CPU). */
366 sscanf (s, "%x,%n", &addr, &n);
368 if (n < 0 || s[n] == 0)
374 sscanf (s, "%02x%n", &data, &n);
378 bytes[11 + nbytes++] = data;
385 h2le32 (bytes, nbytes + 11);
386 bytes[2] = RV_MEM_WR_CMD;
387 h2le32 (bytes + 3, addr);
388 h2le32 (bytes + 7, nbytes);
389 send_output (fd, bytes, nbytes + 11);
392 printf ("s,%x,", addr);
393 for (i = 0; i < nbytes; i++)
394 printf ("%02x", bytes[i]);
400 /* DMA load (from CPU). */
404 sscanf (s, "%x,%n", &addr, &n);
406 if (n < 0 || s[n] == 0)
412 sscanf (s, "%02x%n", &data, &n);
416 bytes[11 + nbytes++] = data;
423 h2le32 (bytes, nbytes + 11);
426 bytes[2] = RV_MEM_RD_CMD;
427 h2le32 (bytes + 3, addr);
428 h2le32 (bytes + 7, nbytes);
429 send_output (fd, bytes, 11);
430 bytes[0] = (nbytes + 11) & 255;
431 bytes[1] = ((nbytes + 11) >> 8) & 255;
432 expect_input (fd, bytes, nbytes + 11, nbytes + 11);
435 printf ("l,%x,", addr);
436 for (i = 0; i < nbytes; i++)
437 printf ("%02x", bytes[i]);
445 fprintf (stderr, "%s: invalid command line in %s:%d:\n %s",
446 progname, fname, lineno, strerror (errno));
451 /* Loop over the contents of FNAME, using handle_input to parse each line.
452 Errors to stderr, exit (2). */
455 handle_input_file (int fd, char *fname)
457 static char buf[2048] = {0};
459 FILE *f = fopen (fname, "r");
463 fprintf (stderr, "%s: problem opening %s: %s\n",
464 progname, fname, strerror (errno));
468 /* Let's cut the buffer short, so we always get a newline. */
469 while (fgets (buf, sizeof (buf) - 1, f) != NULL)
471 buf[strlen (buf) - 1] = 0;
473 handle_input (fd, buf, fname, lineno);
480 main (int argc, char *argv[])
488 while ((optc = getopt_long (argc, argv, "", longopts, NULL)) != -1)
492 port = atoi (optarg);
496 timeout = (time_t) atoi (optarg);
507 fprintf (stderr, "%s: problem setting up the connection: %s\n",
508 progname, strerror (errno));
512 for (i = optind; i < argc; i++)
513 handle_input_file (fd, argv[i]);
515 /* FIXME: option-controlled test for remaining input? */