1 /* Test-driver for the remote-virtual-component simulator framework
2 for GDB, the GNU Debugger.
4 Copyright 2006, 2007, 2008 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
[])
38 #include "libiberty.h"
53 #ifdef HAVE_SYS_TYPES_H
54 #include <sys/types.h>
57 #ifdef HAVE_SYS_TIME_H
61 #ifdef HAVE_SYS_SELECT_H
62 #include <sys/select.h>
69 /* Not guarded in dv-sockser.c, so why here. */
70 #include <netinet/in.h>
71 #include <arpa/inet.h>
73 #include <sys/socket.h>
81 RV_MBOX_HANDLE_CMD
= 5,
86 enum opts
{ OPT_PORT
= 1, OPT_TIMEOUT
, OPT_VERBOSE
};
88 struct option longopts
[] =
90 {"port", required_argument
, NULL
, OPT_PORT
},
91 {"timeout", required_argument
, NULL
, OPT_TIMEOUT
},
92 {"verbose", no_argument
, NULL
, OPT_VERBOSE
},
97 time_t timeout
= 30000;
98 char *progname
= "(unknown)";
101 /* Required forward-declarations. */
102 static void handle_input_file (int, char *);
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
108 int setupsocket (void)
113 struct sockaddr_in sa_in
;
114 struct sockaddr_in from
;
117 memset (&from
, 0, len
);
118 memset (&sa_in
, 0, sizeof (sa_in
));
120 s
= socket (AF_INET
, SOCK_STREAM
, 0);
124 if (setsockopt (s
, SOL_SOCKET
, SO_REUSEADDR
, &reuse
, sizeof reuse
) != 0)
127 sa_in
.sin_port
= htons (port
);
128 sa_in
.sin_family
= AF_INET
;
130 if (bind (s
, (struct sockaddr
*) & sa_in
, sizeof sa_in
) < 0)
133 if (listen (s
, 1) < 0)
136 return accept (s
, (struct sockaddr
*) &from
, &len
);
139 /* Basic host-to-little-endian 32-bit value. Could use the BFD
140 machinery, but let's avoid it for this only dependency. */
143 h2le32 (unsigned char *dest
, unsigned int val
)
146 dest
[1] = (val
>> 8) & 255;
147 dest
[2] = (val
>> 16) & 255;
148 dest
[3] = (val
>> 24) & 255;
151 /* Send a blob of data. */
154 send_output (int fd
, unsigned char *buf
, int nbytes
)
158 ssize_t written
= write (fd
, buf
, nbytes
);
161 fprintf (stderr
, "%s: write to socket failed: %s\n",
162 progname
, strerror (errno
));
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. */
174 expect_input (int fd
, unsigned char *buf
, int nbytes
, int ncomp
)
179 for (i
= 0; i
< nbytes
; i
++)
186 r
= read (fd
, &byt
, 1);
188 while (r
<= 0 && (r
== 0 || errno
== EAGAIN
));
192 fprintf (stderr
, "%s: read from socket failed: %s",
193 progname
, strerror (errno
));
197 if (i
< ncomp
&& byt
!= buf
[i
])
200 fprintf (stderr
, "%s: unexpected input,\n ", progname
);
202 fprintf (stderr
, "nothing,");
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
]);
214 /* Handle everything about a nil-terminated line of input.
215 Call exit (2) on error with error text on stderr. */
218 handle_input (int fd
, char *buf
, char *fname
, int lineno
)
224 static unsigned char bytes
[1024];
227 memset (bytes
, 0, sizeof bytes
);
235 /* Comment characters and empty lines. */
236 case 0: case '!': case '#':
239 /* Include another file. */
241 handle_input_file (fd
, s
);
244 /* Raw input (to be expected). */
249 sscanf (s
, "%02x%n", &data
, &n
);
252 bytes
[nbytes
++] = data
;
255 expect_input (fd
, bytes
, nbytes
, nbytes
);
259 for (i
= 0; i
< nbytes
; i
++)
260 printf ("%02x", bytes
[i
]);
265 /* Raw output (to be written). */
270 sscanf (s
, "%02x%n", &data
, &n
);
274 bytes
[nbytes
++] = data
;
280 send_output (fd
, bytes
, nbytes
);
284 for (i
= 0; i
< nbytes
; i
++)
285 printf ("%02x", bytes
[i
]);
290 /* Read a register. */
294 sscanf (s
, "%x,%x%n", &addr
, &data
, &n
);
295 if (n
< 0 || s
[n
] != 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);
305 printf ("r,%x,%x\n", addr
, data
);
309 /* Write a register. */
313 sscanf (s
, "%x,%x%n", &addr
, &data
, &n
);
314 if (n
< 0 || s
[n
] != 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);
324 printf ("w,%x,%x\n", addr
, data
);
328 /* Wait for some milliseconds. */
333 sscanf (s
, "%d%n", &del
, &n
);
334 if (n
< 0 || s
[n
] != 0 || del
== 0)
337 to
.tv_sec
= del
/ 1000;
338 to
.tv_usec
= (del
% 1000) * 1000;
340 if (select (0, NULL
, NULL
, NULL
, &to
) != 0)
342 fprintf (stderr
, "%s: problem waiting for %d ms:\n %s\n",
343 progname
, del
, strerror (errno
));
347 printf ("t,%d\n", del
);
351 /* Expect a watchdog command. */
357 bytes
[2] = RV_WATCHDOG_CMD
;
358 expect_input (fd
, bytes
, 3, 3);
363 /* Send an IRQ notification. */
365 sscanf (s
, "%x%n", &data
, &n
);
366 if (n
< 0 || s
[n
] != 0)
370 bytes
[2] = RV_IRQ_CMD
;
371 h2le32 (bytes
+ 3, data
);
372 send_output (fd
, bytes
, 7);
374 printf ("I,%x\n", data
);
377 /* DMA store (to CPU). */
381 sscanf (s
, "%x,%n", &addr
, &n
);
383 if (n
< 0 || s
[n
] == 0)
389 sscanf (s
, "%02x%n", &data
, &n
);
393 bytes
[11 + nbytes
++] = data
;
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);
407 printf ("s,%x,", addr
);
408 for (i
= 0; i
< nbytes
; i
++)
409 printf ("%02x", bytes
[i
]);
415 /* DMA load (from CPU). */
419 sscanf (s
, "%x,%n", &addr
, &n
);
421 if (n
< 0 || s
[n
] == 0)
427 sscanf (s
, "%02x%n", &data
, &n
);
431 bytes
[11 + nbytes
++] = data
;
438 h2le32 (bytes
, nbytes
+ 11);
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);
450 printf ("l,%x,", addr
);
451 for (i
= 0; i
< nbytes
; i
++)
452 printf ("%02x", bytes
[i
]);
460 fprintf (stderr
, "%s: invalid command line in %s:%d:\n %s",
461 progname
, fname
, lineno
, strerror (errno
));
466 /* Loop over the contents of FNAME, using handle_input to parse each line.
467 Errors to stderr, exit (2). */
470 handle_input_file (int fd
, char *fname
)
472 static char buf
[2048] = {0};
474 FILE *f
= fopen (fname
, "r");
478 fprintf (stderr
, "%s: problem opening %s: %s\n",
479 progname
, fname
, strerror (errno
));
483 /* Let's cut the buffer short, so we always get a newline. */
484 while (fgets (buf
, sizeof (buf
) - 1, f
) != NULL
)
486 buf
[strlen (buf
) - 1] = 0;
488 handle_input (fd
, buf
, fname
, lineno
);
495 main (int argc
, char *argv
[])
503 while ((optc
= getopt_long (argc
, argv
, "", longopts
, NULL
)) != -1)
507 port
= atoi (optarg
);
511 timeout
= (time_t) atoi (optarg
);
522 fprintf (stderr
, "%s: problem setting up the connection: %s\n",
523 progname
, strerror (errno
));
527 for (i
= optind
; i
< argc
; i
++)
528 handle_input_file (fd
, argv
[i
]);
530 /* FIXME: option-controlled test for remaining input? */
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