Commit | Line | Data |
---|---|---|
c906108c | 1 | /* GDB interface to ARM RDI library. |
29e57380 | 2 | Copyright 1997, 1998, 2001 Free Software Foundation, Inc. |
c906108c | 3 | |
c5aa993b | 4 | This file is part of GDB. |
c906108c | 5 | |
c5aa993b JM |
6 | This program is free software; you can redistribute it and/or modify |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
c906108c | 10 | |
c5aa993b JM |
11 | This program is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
c906108c | 15 | |
c5aa993b JM |
16 | You should have received a copy of the GNU General Public License |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 59 Temple Place - Suite 330, | |
19 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
20 | |
21 | #include "defs.h" | |
22 | #include "gdb_string.h" | |
23 | #include <fcntl.h> | |
24 | #include "frame.h" | |
25 | #include "inferior.h" | |
26 | #include "bfd.h" | |
27 | #include "symfile.h" | |
28 | #include "target.h" | |
03f2053f | 29 | #include "gdb_wait.h" |
c906108c SS |
30 | #include "gdbcmd.h" |
31 | #include "objfiles.h" | |
32 | #include "gdb-stabs.h" | |
33 | #include "gdbthread.h" | |
34 | #include "gdbcore.h" | |
da59e081 | 35 | #include "breakpoint.h" |
c906108c SS |
36 | |
37 | #ifdef USG | |
38 | #include <sys/types.h> | |
39 | #endif | |
40 | ||
41 | #include <signal.h> | |
42 | ||
43 | #include "rdi-share/ardi.h" | |
44 | #include "rdi-share/adp.h" | |
45 | #include "rdi-share/hsys.h" | |
46 | ||
a14ed312 | 47 | extern int isascii (int); |
c906108c SS |
48 | |
49 | /* Prototypes for local functions */ | |
50 | ||
a14ed312 | 51 | static void arm_rdi_files_info (struct target_ops *ignore); |
c906108c | 52 | |
a14ed312 KB |
53 | static int arm_rdi_xfer_memory (CORE_ADDR memaddr, char *myaddr, |
54 | int len, int should_write, | |
29e57380 | 55 | struct mem_attrib *attrib, |
a14ed312 | 56 | struct target_ops *target); |
c906108c | 57 | |
a14ed312 | 58 | static void arm_rdi_prepare_to_store (void); |
c906108c | 59 | |
a14ed312 | 60 | static void arm_rdi_fetch_registers (int regno); |
c906108c | 61 | |
a14ed312 | 62 | static void arm_rdi_resume (int pid, int step, enum target_signal siggnal); |
c906108c | 63 | |
a14ed312 | 64 | static int arm_rdi_start_remote (char *dummy); |
c906108c | 65 | |
a14ed312 | 66 | static void arm_rdi_open (char *name, int from_tty); |
c906108c | 67 | |
a14ed312 | 68 | static void arm_rdi_create_inferior (char *exec_file, char *args, char **env); |
c906108c | 69 | |
a14ed312 | 70 | static void arm_rdi_close (int quitting); |
c906108c | 71 | |
a14ed312 | 72 | static void arm_rdi_store_registers (int regno); |
c906108c | 73 | |
a14ed312 | 74 | static void arm_rdi_mourn (void); |
c906108c | 75 | |
a14ed312 | 76 | static void arm_rdi_send (char *buf); |
c906108c | 77 | |
a14ed312 | 78 | static int arm_rdi_wait (int pid, struct target_waitstatus *status); |
c906108c | 79 | |
a14ed312 | 80 | static void arm_rdi_kill (void); |
c906108c | 81 | |
a14ed312 | 82 | static void arm_rdi_detach (char *args, int from_tty); |
c906108c | 83 | |
a14ed312 | 84 | static void arm_rdi_interrupt (int signo); |
c906108c | 85 | |
a14ed312 | 86 | static void arm_rdi_interrupt_twice (int signo); |
c906108c | 87 | |
a14ed312 | 88 | static void interrupt_query (void); |
c906108c | 89 | |
a14ed312 | 90 | static int arm_rdi_insert_breakpoint (CORE_ADDR, char *); |
c906108c | 91 | |
a14ed312 | 92 | static int arm_rdi_remove_breakpoint (CORE_ADDR, char *); |
c906108c | 93 | |
a14ed312 | 94 | static char *rdi_error_message (int err); |
c906108c | 95 | |
a14ed312 | 96 | static enum target_signal rdi_error_signal (int err); |
c906108c SS |
97 | |
98 | /* Global variables. */ | |
99 | ||
100 | struct target_ops arm_rdi_ops; | |
101 | ||
102 | static struct Dbg_ConfigBlock gdb_config; | |
103 | ||
104 | static struct Dbg_HostosInterface gdb_hostif; | |
105 | ||
106 | static int max_load_size; | |
107 | ||
108 | static int execute_status; | |
109 | ||
5c44784c | 110 | /* Send heatbeat packets? */ |
4ce44c66 | 111 | static int rdi_heartbeat = 0; |
5c44784c JM |
112 | |
113 | /* Target has ROM at address 0. */ | |
114 | static int rom_at_zero = 0; | |
115 | ||
116 | /* Enable logging? */ | |
4ce44c66 | 117 | static int log_enable = 0; |
5c44784c JM |
118 | |
119 | /* Name of the log file. Default is "rdi.log". */ | |
120 | static char *log_filename; | |
121 | ||
c906108c SS |
122 | /* A little list of breakpoints that have been set. */ |
123 | ||
c5aa993b JM |
124 | static struct local_bp_list_entry |
125 | { | |
126 | CORE_ADDR addr; | |
127 | PointHandle point; | |
128 | struct local_bp_list_entry *next; | |
129 | } | |
130 | *local_bp_list; | |
c906108c | 131 | \f |
c5aa993b | 132 | |
c906108c SS |
133 | /* Stub for catch_errors. */ |
134 | ||
135 | static int | |
fba45db2 | 136 | arm_rdi_start_remote (char *dummy) |
c906108c SS |
137 | { |
138 | return 1; | |
139 | } | |
140 | ||
141 | /* Helper callbacks for the "host interface" structure. RDI functions call | |
142 | these to forward output from the target system and so forth. */ | |
143 | ||
144 | void | |
3bb04bdd | 145 | voiddummy (void *dummy) |
c906108c SS |
146 | { |
147 | fprintf_unfiltered (gdb_stdout, "void dummy\n"); | |
148 | } | |
149 | ||
150 | static void | |
fba45db2 | 151 | myprint (PTR arg, const char *format, va_list ap) |
c906108c SS |
152 | { |
153 | vfprintf_unfiltered (gdb_stdout, format, ap); | |
154 | } | |
155 | ||
156 | static void | |
fba45db2 | 157 | mywritec (PTR arg, int c) |
c906108c SS |
158 | { |
159 | if (isascii (c)) | |
160 | fputc_unfiltered (c, gdb_stdout); | |
161 | } | |
162 | ||
163 | static int | |
fba45db2 | 164 | mywrite (PTR arg, char const *buffer, int len) |
c906108c SS |
165 | { |
166 | int i; | |
167 | char *e; | |
168 | ||
169 | e = (char *) buffer; | |
170 | for (i = 0; i < len; i++) | |
c5aa993b | 171 | { |
c906108c | 172 | if (isascii ((int) *e)) |
c5aa993b JM |
173 | { |
174 | fputc_unfiltered ((int) *e, gdb_stdout); | |
175 | e++; | |
176 | } | |
177 | } | |
c906108c SS |
178 | |
179 | return len; | |
180 | } | |
181 | ||
182 | static void | |
fba45db2 | 183 | mypause (PTR arg) |
c906108c SS |
184 | { |
185 | } | |
186 | ||
187 | /* These last two are tricky as we have to handle the special case of | |
188 | being interrupted more carefully */ | |
189 | ||
190 | static int | |
fba45db2 | 191 | myreadc (PTR arg) |
c5aa993b | 192 | { |
c906108c SS |
193 | return fgetc (stdin); |
194 | } | |
195 | ||
196 | static char * | |
fba45db2 | 197 | mygets (PTR arg, char *buffer, int len) |
c906108c | 198 | { |
c5aa993b | 199 | return fgets (buffer, len, stdin); |
c906108c SS |
200 | } |
201 | ||
202 | /* Prevent multiple calls to angel_RDI_close(). */ | |
203 | static int closed_already = 1; | |
204 | ||
205 | /* Open a connection to a remote debugger. NAME is the filename used | |
206 | for communication. */ | |
207 | ||
208 | static void | |
fba45db2 | 209 | arm_rdi_open (char *name, int from_tty) |
c906108c SS |
210 | { |
211 | int rslt, i; | |
212 | unsigned long arg1, arg2; | |
5c44784c JM |
213 | char *openArgs = NULL; |
214 | char *devName = NULL; | |
215 | char *p; | |
c906108c SS |
216 | |
217 | if (name == NULL) | |
218 | error ("To open an RDI connection, you need to specify what serial\n\ | |
219 | device is attached to the remote system (e.g. /dev/ttya)."); | |
220 | ||
5c44784c JM |
221 | /* split name after whitespace, pass tail as arg to open command */ |
222 | ||
c2d11a7d | 223 | devName = xstrdup (name); |
4ce44c66 | 224 | p = strchr (devName, ' '); |
5c44784c JM |
225 | if (p) |
226 | { | |
227 | *p = '\0'; | |
228 | ++p; | |
229 | ||
230 | while (*p == ' ') | |
231 | ++p; | |
232 | ||
233 | openArgs = p; | |
234 | } | |
235 | ||
c906108c SS |
236 | /* Make the basic low-level connection. */ |
237 | ||
c5394b80 | 238 | arm_rdi_close (0); |
5c44784c | 239 | rslt = Adp_OpenDevice (devName, openArgs, rdi_heartbeat); |
c906108c SS |
240 | |
241 | if (rslt != adp_ok) | |
242 | error ("Could not open device \"%s\"", name); | |
243 | ||
244 | gdb_config.bytesex = 2 | (TARGET_BYTE_ORDER == BIG_ENDIAN ? 1 : 0); | |
245 | gdb_config.fpe = 1; | |
246 | gdb_config.rditype = 2; | |
247 | gdb_config.heartbeat_on = 1; | |
248 | gdb_config.flags = 2; | |
249 | ||
250 | gdb_hostif.dbgprint = myprint; | |
251 | gdb_hostif.dbgpause = mypause; | |
252 | gdb_hostif.dbgarg = NULL; | |
253 | gdb_hostif.writec = mywritec; | |
254 | gdb_hostif.readc = myreadc; | |
255 | gdb_hostif.write = mywrite; | |
256 | gdb_hostif.gets = mygets; | |
257 | gdb_hostif.hostosarg = NULL; | |
258 | gdb_hostif.reset = voiddummy; | |
259 | ||
260 | rslt = angel_RDI_open (10, &gdb_config, &gdb_hostif, NULL); | |
261 | if (rslt == RDIError_BigEndian || rslt == RDIError_LittleEndian) | |
c5aa993b | 262 | ; /* do nothing, this is the expected return */ |
c906108c SS |
263 | else if (rslt) |
264 | { | |
265 | printf_filtered ("RDI_open: %s\n", rdi_error_message (rslt)); | |
2acceee2 | 266 | Adp_CloseDevice (); |
3c06a63b | 267 | error ("RDI_open failed\n"); |
c906108c SS |
268 | } |
269 | ||
270 | rslt = angel_RDI_info (RDIInfo_Target, &arg1, &arg2); | |
271 | if (rslt) | |
272 | { | |
273 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
274 | } | |
275 | rslt = angel_RDI_info (RDIInfo_Points, &arg1, &arg2); | |
276 | if (rslt) | |
277 | { | |
278 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
279 | } | |
280 | rslt = angel_RDI_info (RDIInfo_Step, &arg1, &arg2); | |
281 | if (rslt) | |
282 | { | |
283 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
284 | } | |
285 | rslt = angel_RDI_info (RDIInfo_CoPro, &arg1, &arg2); | |
286 | if (rslt) | |
287 | { | |
288 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
289 | } | |
290 | rslt = angel_RDI_info (RDIInfo_SemiHosting, &arg1, &arg2); | |
291 | if (rslt) | |
292 | { | |
293 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
294 | } | |
295 | ||
296 | rslt = angel_RDI_info (RDIInfo_GetLoadSize, &arg1, &arg2); | |
297 | if (rslt) | |
298 | { | |
299 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
300 | } | |
301 | max_load_size = arg1; | |
302 | ||
303 | push_target (&arm_rdi_ops); | |
304 | ||
305 | target_fetch_registers (-1); | |
306 | ||
307 | rslt = angel_RDI_open (1, &gdb_config, NULL, NULL); | |
308 | if (rslt) | |
309 | { | |
310 | printf_filtered ("RDI_open: %s\n", rdi_error_message (rslt)); | |
311 | } | |
312 | ||
5c44784c JM |
313 | arg1 = rom_at_zero ? 0x0 : 0x13b; |
314 | ||
c906108c SS |
315 | rslt = angel_RDI_info (RDIVector_Catch, &arg1, &arg2); |
316 | if (rslt) | |
317 | { | |
318 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
319 | } | |
320 | ||
321 | arg1 = (unsigned long) ""; | |
322 | rslt = angel_RDI_info (RDISet_Cmdline, &arg1, &arg2); | |
323 | if (rslt) | |
324 | { | |
325 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
326 | } | |
327 | ||
328 | /* Clear out any existing records of breakpoints. */ | |
329 | { | |
330 | struct local_bp_list_entry *entry, *preventry = NULL; | |
331 | ||
332 | for (entry = local_bp_list; entry != NULL; entry = entry->next) | |
333 | { | |
334 | if (preventry) | |
b8c9b27d | 335 | xfree (preventry); |
c906108c SS |
336 | } |
337 | } | |
338 | ||
339 | printf_filtered ("Connected to ARM RDI target.\n"); | |
340 | closed_already = 0; | |
341 | inferior_pid = 42; | |
342 | } | |
343 | ||
344 | /* Start an inferior process and set inferior_pid to its pid. | |
345 | EXEC_FILE is the file to run. | |
346 | ARGS is a string containing the arguments to the program. | |
347 | ENV is the environment vector to pass. Errors reported with error(). | |
348 | On VxWorks and various standalone systems, we ignore exec_file. */ | |
349 | /* This is called not only when we first attach, but also when the | |
350 | user types "run" after having attached. */ | |
351 | ||
352 | static void | |
fba45db2 | 353 | arm_rdi_create_inferior (char *exec_file, char *args, char **env) |
c906108c SS |
354 | { |
355 | int len, rslt; | |
356 | unsigned long arg1, arg2; | |
357 | char *arg_buf; | |
358 | CORE_ADDR entry_point; | |
359 | ||
360 | if (exec_file == 0 || exec_bfd == 0) | |
c5aa993b | 361 | error ("No executable file specified."); |
c906108c SS |
362 | |
363 | entry_point = (CORE_ADDR) bfd_get_start_address (exec_bfd); | |
364 | ||
c5aa993b | 365 | arm_rdi_kill (); |
c906108c SS |
366 | remove_breakpoints (); |
367 | init_wait_for_inferior (); | |
368 | ||
c5aa993b | 369 | len = strlen (exec_file) + 1 + strlen (args) + 1 + /*slop */ 10; |
c906108c SS |
370 | arg_buf = (char *) alloca (len); |
371 | arg_buf[0] = '\0'; | |
372 | strcat (arg_buf, exec_file); | |
373 | strcat (arg_buf, " "); | |
374 | strcat (arg_buf, args); | |
375 | ||
376 | inferior_pid = 42; | |
c5aa993b | 377 | insert_breakpoints (); /* Needed to get correct instruction in cache */ |
c906108c SS |
378 | |
379 | if (env != NULL) | |
380 | { | |
381 | while (*env) | |
382 | { | |
383 | if (strncmp (*env, "MEMSIZE=", sizeof ("MEMSIZE=") - 1) == 0) | |
384 | { | |
385 | unsigned long top_of_memory; | |
386 | char *end_of_num; | |
387 | ||
388 | /* Set up memory limit */ | |
389 | top_of_memory = strtoul (*env + sizeof ("MEMSIZE=") - 1, | |
390 | &end_of_num, 0); | |
d4f3574e | 391 | printf_filtered ("Setting top-of-memory to 0x%lx\n", |
c906108c | 392 | top_of_memory); |
c5aa993b | 393 | |
c906108c SS |
394 | rslt = angel_RDI_info (RDIInfo_SetTopMem, &top_of_memory, &arg2); |
395 | if (rslt) | |
396 | { | |
397 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
398 | } | |
399 | } | |
400 | env++; | |
401 | } | |
402 | } | |
403 | ||
404 | arg1 = (unsigned long) arg_buf; | |
c5aa993b | 405 | rslt = angel_RDI_info (RDISet_Cmdline, /* &arg1 */ (unsigned long *) arg_buf, &arg2); |
c906108c SS |
406 | if (rslt) |
407 | { | |
408 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
409 | } | |
410 | ||
411 | proceed (entry_point, TARGET_SIGNAL_DEFAULT, 0); | |
412 | } | |
413 | ||
414 | /* This takes a program previously attached to and detaches it. After | |
415 | this is done, GDB can be used to debug some other program. We | |
416 | better not have left any breakpoints in the target program or it'll | |
417 | die when it hits one. */ | |
418 | ||
419 | static void | |
fba45db2 | 420 | arm_rdi_detach (char *args, int from_tty) |
c906108c SS |
421 | { |
422 | pop_target (); | |
423 | } | |
424 | ||
425 | /* Clean up connection to a remote debugger. */ | |
426 | ||
427 | static void | |
fba45db2 | 428 | arm_rdi_close (int quitting) |
c906108c SS |
429 | { |
430 | int rslt; | |
431 | ||
c5aa993b | 432 | if (!closed_already) |
c906108c SS |
433 | { |
434 | rslt = angel_RDI_close (); | |
435 | if (rslt) | |
436 | { | |
437 | printf_filtered ("RDI_close: %s\n", rdi_error_message (rslt)); | |
438 | } | |
439 | closed_already = 1; | |
440 | inferior_pid = 0; | |
96baa820 | 441 | Adp_CloseDevice (); |
75660bc0 | 442 | generic_mourn_inferior (); |
c906108c SS |
443 | } |
444 | } | |
445 | \f | |
446 | /* Tell the remote machine to resume. */ | |
447 | ||
448 | static void | |
fba45db2 | 449 | arm_rdi_resume (int pid, int step, enum target_signal siggnal) |
c906108c SS |
450 | { |
451 | int rslt; | |
452 | PointHandle point; | |
453 | ||
c5aa993b | 454 | if (0 /* turn on when hardware supports single-stepping */ ) |
c906108c SS |
455 | { |
456 | rslt = angel_RDI_step (1, &point); | |
457 | if (rslt) | |
458 | { | |
459 | printf_filtered ("RDI_step: %s\n", rdi_error_message (rslt)); | |
460 | } | |
461 | } | |
462 | else | |
463 | { | |
464 | char handle[4]; | |
465 | CORE_ADDR pc; | |
466 | ||
467 | if (step) | |
468 | { | |
469 | pc = read_register (PC_REGNUM); | |
470 | pc = arm_get_next_pc (pc); | |
471 | arm_rdi_insert_breakpoint (pc, handle); | |
472 | } | |
473 | execute_status = rslt = angel_RDI_execute (&point); | |
474 | if (rslt == RDIError_BreakpointReached) | |
475 | ; | |
476 | else if (rslt) | |
477 | { | |
478 | printf_filtered ("RDI_execute: %s\n", rdi_error_message (rslt)); | |
479 | } | |
480 | if (step) | |
481 | { | |
482 | arm_rdi_remove_breakpoint (pc, handle); | |
483 | } | |
484 | } | |
485 | } | |
486 | \f | |
487 | /* Send ^C to target to halt it. Target will respond, and send us a | |
488 | packet. */ | |
489 | ||
490 | static void | |
fba45db2 | 491 | arm_rdi_interrupt (int signo) |
c906108c SS |
492 | { |
493 | } | |
494 | ||
c5aa993b | 495 | static void (*ofunc) (); |
c906108c SS |
496 | |
497 | /* The user typed ^C twice. */ | |
498 | static void | |
fba45db2 | 499 | arm_rdi_interrupt_twice (int signo) |
c906108c SS |
500 | { |
501 | } | |
502 | ||
503 | /* Ask the user what to do when an interrupt is received. */ | |
504 | ||
505 | static void | |
fba45db2 | 506 | interrupt_query (void) |
c906108c SS |
507 | { |
508 | } | |
509 | ||
510 | /* Wait until the remote machine stops, then return, storing status in | |
511 | STATUS just as `wait' would. Returns "pid" (though it's not clear | |
512 | what, if anything, that means in the case of this target). */ | |
513 | ||
514 | static int | |
fba45db2 | 515 | arm_rdi_wait (int pid, struct target_waitstatus *status) |
c906108c SS |
516 | { |
517 | status->kind = (execute_status == RDIError_NoError ? | |
c5aa993b | 518 | TARGET_WAITKIND_EXITED : TARGET_WAITKIND_STOPPED); |
c906108c SS |
519 | |
520 | /* convert stopped code from target into right signal */ | |
521 | status->value.sig = rdi_error_signal (execute_status); | |
522 | ||
523 | return inferior_pid; | |
524 | } | |
525 | ||
526 | /* Read the remote registers into the block REGS. */ | |
527 | ||
528 | /* ARGSUSED */ | |
529 | static void | |
fba45db2 | 530 | arm_rdi_fetch_registers (int regno) |
c906108c SS |
531 | { |
532 | int rslt, rdi_regmask; | |
533 | unsigned long rawreg, rawregs[32]; | |
534 | char cookedreg[4]; | |
535 | ||
c5aa993b | 536 | if (regno == -1) |
c906108c SS |
537 | { |
538 | rslt = angel_RDI_CPUread (255, 0x27fff, rawregs); | |
539 | if (rslt) | |
540 | { | |
541 | printf_filtered ("RDI_CPUread: %s\n", rdi_error_message (rslt)); | |
542 | } | |
543 | ||
544 | for (regno = 0; regno < 15; regno++) | |
545 | { | |
546 | store_unsigned_integer (cookedreg, 4, rawregs[regno]); | |
547 | supply_register (regno, (char *) cookedreg); | |
548 | } | |
549 | store_unsigned_integer (cookedreg, 4, rawregs[15]); | |
550 | supply_register (PS_REGNUM, (char *) cookedreg); | |
551 | arm_rdi_fetch_registers (PC_REGNUM); | |
552 | } | |
553 | else | |
554 | { | |
555 | if (regno == PC_REGNUM) | |
556 | rdi_regmask = RDIReg_PC; | |
557 | else if (regno == PS_REGNUM) | |
558 | rdi_regmask = RDIReg_CPSR; | |
559 | else if (regno < 0 || regno > 15) | |
560 | { | |
561 | rawreg = 0; | |
562 | supply_register (regno, (char *) &rawreg); | |
563 | return; | |
564 | } | |
565 | else | |
566 | rdi_regmask = 1 << regno; | |
567 | ||
568 | rslt = angel_RDI_CPUread (255, rdi_regmask, &rawreg); | |
569 | if (rslt) | |
570 | { | |
571 | printf_filtered ("RDI_CPUread: %s\n", rdi_error_message (rslt)); | |
572 | } | |
573 | store_unsigned_integer (cookedreg, 4, rawreg); | |
574 | supply_register (regno, (char *) cookedreg); | |
575 | } | |
576 | } | |
577 | ||
c5aa993b | 578 | static void |
fba45db2 | 579 | arm_rdi_prepare_to_store (void) |
c906108c SS |
580 | { |
581 | /* Nothing to do. */ | |
582 | } | |
583 | ||
584 | /* Store register REGNO, or all registers if REGNO == -1, from the contents | |
585 | of REGISTERS. FIXME: ignores errors. */ | |
586 | ||
587 | static void | |
fba45db2 | 588 | arm_rdi_store_registers (int regno) |
c906108c SS |
589 | { |
590 | int rslt, rdi_regmask; | |
591 | ||
592 | /* These need to be able to take 'floating point register' contents */ | |
593 | unsigned long rawreg[3], rawerreg[3]; | |
594 | ||
c5aa993b | 595 | if (regno == -1) |
c906108c SS |
596 | { |
597 | for (regno = 0; regno < NUM_REGS; regno++) | |
598 | arm_rdi_store_registers (regno); | |
599 | } | |
600 | else | |
601 | { | |
602 | read_register_gen (regno, (char *) rawreg); | |
603 | /* RDI manipulates data in host byte order, so convert now. */ | |
604 | store_unsigned_integer (rawerreg, 4, rawreg[0]); | |
605 | ||
606 | if (regno == PC_REGNUM) | |
607 | rdi_regmask = RDIReg_PC; | |
608 | else if (regno == PS_REGNUM) | |
609 | rdi_regmask = RDIReg_CPSR; | |
610 | else if (regno < 0 || regno > 15) | |
611 | return; | |
612 | else | |
613 | rdi_regmask = 1 << regno; | |
614 | ||
615 | rslt = angel_RDI_CPUwrite (255, rdi_regmask, rawerreg); | |
616 | if (rslt) | |
617 | { | |
618 | printf_filtered ("RDI_CPUwrite: %s\n", rdi_error_message (rslt)); | |
619 | } | |
620 | } | |
621 | } | |
622 | \f | |
623 | /* Read or write LEN bytes from inferior memory at MEMADDR, | |
624 | transferring to or from debugger address MYADDR. Write to inferior | |
625 | if SHOULD_WRITE is nonzero. Returns length of data written or | |
120abad8 | 626 | read; 0 for error. TARGET is unused. */ |
c906108c SS |
627 | |
628 | /* ARGSUSED */ | |
629 | static int | |
29e57380 C |
630 | arm_rdi_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int should_write, |
631 | struct mem_attrib *attrib ATTRIBUTE_UNUSED, | |
632 | struct target_ops *target ATTRIBUTE_UNUSED) | |
c906108c SS |
633 | { |
634 | int rslt, i; | |
635 | ||
636 | if (should_write) | |
637 | { | |
638 | rslt = angel_RDI_write (myaddr, memaddr, &len); | |
639 | if (rslt) | |
640 | { | |
641 | printf_filtered ("RDI_write: %s\n", rdi_error_message (rslt)); | |
642 | } | |
643 | } | |
c5aa993b | 644 | else |
c906108c SS |
645 | { |
646 | rslt = angel_RDI_read (memaddr, myaddr, &len); | |
647 | if (rslt) | |
648 | { | |
649 | printf_filtered ("RDI_read: %s\n", rdi_error_message (rslt)); | |
650 | len = 0; | |
651 | } | |
652 | } | |
653 | return len; | |
654 | } | |
655 | \f | |
656 | /* Display random info collected from the target. */ | |
657 | ||
658 | static void | |
fba45db2 | 659 | arm_rdi_files_info (struct target_ops *ignore) |
c906108c SS |
660 | { |
661 | char *file = "nothing"; | |
662 | int rslt; | |
663 | unsigned long arg1, arg2; | |
664 | ||
665 | rslt = angel_RDI_info (RDIInfo_Target, &arg1, &arg2); | |
666 | if (rslt) | |
667 | { | |
668 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
669 | } | |
670 | if (arg1 & (1 << 15)) | |
671 | printf_filtered ("Target supports Thumb code.\n"); | |
672 | if (arg1 & (1 << 14)) | |
673 | printf_filtered ("Target can do profiling.\n"); | |
674 | if (arg1 & (1 << 4)) | |
675 | printf_filtered ("Target is real hardware.\n"); | |
c5aa993b | 676 | |
c906108c SS |
677 | rslt = angel_RDI_info (RDIInfo_Step, &arg1, &arg2); |
678 | if (rslt) | |
679 | { | |
680 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
681 | } | |
682 | printf_filtered ("Target can%s single-step.\n", (arg1 & 0x4 ? "" : "not")); | |
683 | ||
684 | rslt = angel_RDI_info (RDIInfo_Icebreaker, &arg1, &arg2); | |
685 | if (rslt) | |
686 | { | |
687 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
688 | } | |
689 | else | |
690 | printf_filtered ("Target includes an EmbeddedICE.\n"); | |
691 | } | |
692 | \f | |
693 | static void | |
fba45db2 | 694 | arm_rdi_kill (void) |
c906108c SS |
695 | { |
696 | int rslt; | |
697 | ||
698 | rslt = angel_RDI_open (1, &gdb_config, NULL, NULL); | |
699 | if (rslt) | |
700 | { | |
701 | printf_filtered ("RDI_open: %s\n", rdi_error_message (rslt)); | |
702 | } | |
703 | } | |
704 | ||
705 | static void | |
fba45db2 | 706 | arm_rdi_mourn_inferior (void) |
c906108c | 707 | { |
da59e081 JM |
708 | /* We remove the inserted breakpoints in case the user wants to |
709 | issue another target and load commands to rerun his application; | |
710 | This is something that wouldn't work on a native target, for instance, | |
711 | as the process goes away when the inferior exits, but it works with | |
712 | some remote targets like this one. That is why this is done here. */ | |
713 | remove_breakpoints(); | |
c906108c SS |
714 | unpush_target (&arm_rdi_ops); |
715 | generic_mourn_inferior (); | |
716 | } | |
717 | \f | |
718 | /* While the RDI library keeps track of its own breakpoints, we need | |
719 | to remember "handles" so that we can delete them later. Since | |
720 | breakpoints get used for stepping, be careful not to leak memory | |
721 | here. */ | |
722 | ||
723 | static int | |
fba45db2 | 724 | arm_rdi_insert_breakpoint (CORE_ADDR addr, char *contents_cache) |
c906108c SS |
725 | { |
726 | int rslt; | |
727 | PointHandle point; | |
728 | struct local_bp_list_entry *entry; | |
729 | int type = RDIPoint_EQ; | |
730 | ||
731 | if (arm_pc_is_thumb (addr) || arm_pc_is_thumb_dummy (addr)) | |
732 | type |= RDIPoint_16Bit; | |
733 | rslt = angel_RDI_setbreak (addr, type, 0, &point); | |
734 | if (rslt) | |
735 | { | |
736 | printf_filtered ("RDI_setbreak: %s\n", rdi_error_message (rslt)); | |
737 | } | |
738 | entry = | |
739 | (struct local_bp_list_entry *) xmalloc (sizeof (struct local_bp_list_entry)); | |
740 | entry->addr = addr; | |
741 | entry->point = point; | |
742 | entry->next = local_bp_list; | |
743 | local_bp_list = entry; | |
744 | return rslt; | |
745 | } | |
746 | ||
747 | static int | |
fba45db2 | 748 | arm_rdi_remove_breakpoint (CORE_ADDR addr, char *contents_cache) |
c906108c SS |
749 | { |
750 | int rslt; | |
751 | PointHandle point; | |
752 | struct local_bp_list_entry *entry, *preventry; | |
753 | ||
754 | for (entry = local_bp_list; entry != NULL; entry = entry->next) | |
755 | { | |
756 | if (entry->addr == addr) | |
757 | { | |
758 | break; | |
759 | } | |
760 | preventry = entry; | |
761 | } | |
762 | if (entry) | |
763 | { | |
764 | rslt = angel_RDI_clearbreak (entry->point); | |
765 | if (rslt) | |
766 | { | |
767 | printf_filtered ("RDI_clearbreak: %s\n", rdi_error_message (rslt)); | |
768 | } | |
769 | /* Delete the breakpoint entry locally. */ | |
770 | if (entry == local_bp_list) | |
771 | { | |
772 | local_bp_list = entry->next; | |
773 | } | |
774 | else | |
775 | { | |
776 | preventry->next = entry->next; | |
777 | } | |
b8c9b27d | 778 | xfree (entry); |
c906108c SS |
779 | } |
780 | return 0; | |
781 | } | |
782 | \f | |
783 | static char * | |
fba45db2 | 784 | rdi_error_message (int err) |
c906108c SS |
785 | { |
786 | switch (err) | |
787 | { | |
c5aa993b | 788 | case RDIError_NoError: |
c906108c SS |
789 | return "no error"; |
790 | case RDIError_Reset: | |
791 | return "debuggee reset"; | |
792 | case RDIError_UndefinedInstruction: | |
793 | return "undefined instruction"; | |
794 | case RDIError_SoftwareInterrupt: | |
795 | return "SWI trapped"; | |
796 | case RDIError_PrefetchAbort: | |
797 | return "prefetch abort, execution ran into unmapped memory?"; | |
798 | case RDIError_DataAbort: | |
799 | return "data abort, no memory at specified address?"; | |
800 | case RDIError_AddressException: | |
801 | return "address exception, access >26bit in 26bit mode"; | |
802 | case RDIError_IRQ: | |
803 | return "IRQ, interrupt trapped"; | |
804 | case RDIError_FIQ: | |
805 | return "FIQ, fast interrupt trapped"; | |
806 | case RDIError_Error: | |
807 | return "a miscellaneous type of error"; | |
808 | case RDIError_BranchThrough0: | |
809 | return "branch through location 0"; | |
810 | case RDIError_NotInitialised: | |
811 | return "internal error, RDI_open not called first"; | |
812 | case RDIError_UnableToInitialise: | |
813 | return "internal error, target world is broken"; | |
814 | case RDIError_WrongByteSex: | |
815 | return "See Operator: WrongByteSex"; | |
816 | case RDIError_UnableToTerminate: | |
817 | return "See Operator: Unable to Terminate"; | |
818 | case RDIError_BadInstruction: | |
819 | return "bad instruction, illegal to execute this instruction"; | |
820 | case RDIError_IllegalInstruction: | |
821 | return "illegal instruction, the effect of executing it is undefined"; | |
822 | case RDIError_BadCPUStateSetting: | |
823 | return "internal error, tried to set SPSR of user mode"; | |
824 | case RDIError_UnknownCoPro: | |
825 | return "unknown co-processor"; | |
826 | case RDIError_UnknownCoProState: | |
827 | return "cannot execute co-processor request"; | |
828 | case RDIError_BadCoProState: | |
829 | return "recognizably broken co-processor request"; | |
830 | case RDIError_BadPointType: | |
831 | return "internal error, bad point yype"; | |
832 | case RDIError_UnimplementedType: | |
833 | return "internal error, unimplemented type"; | |
834 | case RDIError_BadPointSize: | |
835 | return "internal error, bad point size"; | |
836 | case RDIError_UnimplementedSize: | |
837 | return "internal error, unimplemented size"; | |
838 | case RDIError_NoMorePoints: | |
839 | return "last break/watch point was used"; | |
840 | case RDIError_BreakpointReached: | |
841 | return "breakpoint reached"; | |
842 | case RDIError_WatchpointAccessed: | |
843 | return "watchpoint accessed"; | |
844 | case RDIError_NoSuchPoint: | |
845 | return "attempted to clear non-existent break/watch point"; | |
846 | case RDIError_ProgramFinishedInStep: | |
847 | return "end of the program reached while stepping"; | |
848 | case RDIError_UserInterrupt: | |
849 | return "you pressed Escape"; | |
850 | case RDIError_CantSetPoint: | |
851 | return "no more break/watch points available"; | |
852 | case RDIError_IncompatibleRDILevels: | |
853 | return "incompatible RDI levels"; | |
854 | case RDIError_LittleEndian: | |
855 | return "debuggee is little endian"; | |
856 | case RDIError_BigEndian: | |
857 | return "debuggee is big endian"; | |
858 | case RDIError_SoftInitialiseError: | |
859 | return "recoverable error in RDI initialization"; | |
860 | case RDIError_InsufficientPrivilege: | |
861 | return "internal error, supervisor state not accessible to monitor"; | |
862 | case RDIError_UnimplementedMessage: | |
863 | return "internal error, unimplemented message"; | |
864 | case RDIError_UndefinedMessage: | |
865 | return "internal error, undefined message"; | |
866 | default: | |
c5aa993b | 867 | return "undefined error message, should reset target"; |
c906108c SS |
868 | } |
869 | } | |
870 | ||
871 | /* Convert the ARM error messages to signals that GDB knows about. */ | |
872 | ||
873 | static enum target_signal | |
fba45db2 | 874 | rdi_error_signal (int err) |
c906108c SS |
875 | { |
876 | switch (err) | |
877 | { | |
878 | case RDIError_NoError: | |
879 | return 0; | |
880 | case RDIError_Reset: | |
c5aa993b | 881 | return TARGET_SIGNAL_TERM; /* ??? */ |
c906108c SS |
882 | case RDIError_UndefinedInstruction: |
883 | return TARGET_SIGNAL_ILL; | |
884 | case RDIError_SoftwareInterrupt: | |
885 | case RDIError_PrefetchAbort: | |
886 | case RDIError_DataAbort: | |
887 | return TARGET_SIGNAL_TRAP; | |
888 | case RDIError_AddressException: | |
889 | return TARGET_SIGNAL_SEGV; | |
890 | case RDIError_IRQ: | |
891 | case RDIError_FIQ: | |
892 | return TARGET_SIGNAL_TRAP; | |
893 | case RDIError_Error: | |
894 | return TARGET_SIGNAL_TERM; | |
895 | case RDIError_BranchThrough0: | |
896 | return TARGET_SIGNAL_TRAP; | |
897 | case RDIError_NotInitialised: | |
898 | case RDIError_UnableToInitialise: | |
899 | case RDIError_WrongByteSex: | |
900 | case RDIError_UnableToTerminate: | |
901 | return TARGET_SIGNAL_UNKNOWN; | |
902 | case RDIError_BadInstruction: | |
903 | case RDIError_IllegalInstruction: | |
904 | return TARGET_SIGNAL_ILL; | |
905 | case RDIError_BadCPUStateSetting: | |
906 | case RDIError_UnknownCoPro: | |
907 | case RDIError_UnknownCoProState: | |
908 | case RDIError_BadCoProState: | |
909 | case RDIError_BadPointType: | |
910 | case RDIError_UnimplementedType: | |
911 | case RDIError_BadPointSize: | |
912 | case RDIError_UnimplementedSize: | |
913 | case RDIError_NoMorePoints: | |
914 | return TARGET_SIGNAL_UNKNOWN; | |
915 | case RDIError_BreakpointReached: | |
916 | case RDIError_WatchpointAccessed: | |
917 | return TARGET_SIGNAL_TRAP; | |
918 | case RDIError_NoSuchPoint: | |
919 | case RDIError_ProgramFinishedInStep: | |
920 | return TARGET_SIGNAL_UNKNOWN; | |
921 | case RDIError_UserInterrupt: | |
922 | return TARGET_SIGNAL_INT; | |
923 | case RDIError_IncompatibleRDILevels: | |
924 | case RDIError_LittleEndian: | |
925 | case RDIError_BigEndian: | |
926 | case RDIError_SoftInitialiseError: | |
927 | case RDIError_InsufficientPrivilege: | |
928 | case RDIError_UnimplementedMessage: | |
929 | case RDIError_UndefinedMessage: | |
930 | default: | |
c5aa993b | 931 | return TARGET_SIGNAL_UNKNOWN; |
c906108c SS |
932 | } |
933 | } | |
e9110f4f FN |
934 | |
935 | static void | |
936 | arm_rdi_stop(void) | |
937 | { | |
938 | angel_RDI_stop_request(); | |
939 | } | |
940 | ||
c906108c SS |
941 | \f |
942 | /* Define the target operations structure. */ | |
943 | ||
944 | static void | |
fba45db2 | 945 | init_rdi_ops (void) |
c906108c | 946 | { |
c5aa993b | 947 | arm_rdi_ops.to_shortname = "rdi"; |
c906108c SS |
948 | arm_rdi_ops.to_longname = "ARM RDI"; |
949 | arm_rdi_ops.to_doc = "Use a remote ARM-based computer; via the RDI library.\n\ | |
c5aa993b JM |
950 | Specify the serial device it is connected to (e.g. /dev/ttya)."; |
951 | arm_rdi_ops.to_open = arm_rdi_open; | |
952 | arm_rdi_ops.to_close = arm_rdi_close; | |
953 | arm_rdi_ops.to_detach = arm_rdi_detach; | |
954 | arm_rdi_ops.to_resume = arm_rdi_resume; | |
955 | arm_rdi_ops.to_wait = arm_rdi_wait; | |
e9110f4f | 956 | arm_rdi_ops.to_stop = arm_rdi_stop; |
c906108c SS |
957 | arm_rdi_ops.to_fetch_registers = arm_rdi_fetch_registers; |
958 | arm_rdi_ops.to_store_registers = arm_rdi_store_registers; | |
959 | arm_rdi_ops.to_prepare_to_store = arm_rdi_prepare_to_store; | |
960 | arm_rdi_ops.to_xfer_memory = arm_rdi_xfer_memory; | |
961 | arm_rdi_ops.to_files_info = arm_rdi_files_info; | |
962 | arm_rdi_ops.to_insert_breakpoint = arm_rdi_insert_breakpoint; | |
c5aa993b JM |
963 | arm_rdi_ops.to_remove_breakpoint = arm_rdi_remove_breakpoint; |
964 | arm_rdi_ops.to_kill = arm_rdi_kill; | |
965 | arm_rdi_ops.to_load = generic_load; | |
c906108c SS |
966 | arm_rdi_ops.to_create_inferior = arm_rdi_create_inferior; |
967 | arm_rdi_ops.to_mourn_inferior = arm_rdi_mourn_inferior; | |
968 | arm_rdi_ops.to_stratum = process_stratum; | |
c5aa993b JM |
969 | arm_rdi_ops.to_has_all_memory = 1; |
970 | arm_rdi_ops.to_has_memory = 1; | |
971 | arm_rdi_ops.to_has_stack = 1; | |
972 | arm_rdi_ops.to_has_registers = 1; | |
973 | arm_rdi_ops.to_has_execution = 1; | |
974 | arm_rdi_ops.to_magic = OPS_MAGIC; | |
c906108c SS |
975 | } |
976 | ||
4ce44c66 JM |
977 | static void |
978 | rdilogfile_command (char *arg, int from_tty) | |
5c44784c JM |
979 | { |
980 | if (!arg || strlen (arg) == 0) | |
981 | { | |
982 | printf_filtered ("rdi log file is '%s'\n", log_filename); | |
983 | return; | |
984 | } | |
4ce44c66 | 985 | |
5c44784c | 986 | if (log_filename) |
b8c9b27d | 987 | xfree (log_filename); |
4ce44c66 | 988 | |
c2d11a7d | 989 | log_filename = xstrdup (arg); |
5c44784c JM |
990 | |
991 | Adp_SetLogfile (log_filename); | |
992 | } | |
993 | ||
4ce44c66 JM |
994 | static void |
995 | rdilogenable_command (char *args, int from_tty) | |
5c44784c JM |
996 | { |
997 | if (!args || strlen (args) == 0) | |
998 | { | |
999 | printf_filtered ("rdi log is %s\n", log_enable ? "enabled" : "disabled"); | |
1000 | return; | |
1001 | } | |
4ce44c66 JM |
1002 | |
1003 | if (!strcasecmp (args, "1") || | |
1004 | !strcasecmp (args, "y") || | |
1005 | !strcasecmp (args, "yes") || | |
1006 | !strcasecmp (args, "on") || | |
1007 | !strcasecmp (args, "t") || | |
1008 | !strcasecmp (args, "true")) | |
1009 | Adp_SetLogEnable (log_enable = 1); | |
1010 | else if (!strcasecmp (args, "0") || | |
1011 | !strcasecmp (args, "n") || | |
1012 | !strcasecmp (args, "no") || | |
1013 | !strcasecmp (args, "off") || | |
1014 | !strcasecmp (args, "f") || | |
1015 | !strcasecmp (args, "false")) | |
1016 | Adp_SetLogEnable (log_enable = 0); | |
5c44784c JM |
1017 | else |
1018 | printf_filtered ("rdilogenable: unrecognized argument '%s'\n" | |
4ce44c66 | 1019 | " try y or n\n", args); |
5c44784c JM |
1020 | } |
1021 | ||
c906108c | 1022 | void |
fba45db2 | 1023 | _initialize_remote_rdi (void) |
c906108c | 1024 | { |
c5aa993b | 1025 | init_rdi_ops (); |
c906108c | 1026 | add_target (&arm_rdi_ops); |
5c44784c | 1027 | |
c2d11a7d | 1028 | log_filename = xstrdup ("rdi.log"); |
4ce44c66 JM |
1029 | Adp_SetLogfile (log_filename); |
1030 | Adp_SetLogEnable (log_enable); | |
5c44784c JM |
1031 | |
1032 | add_cmd ("rdilogfile", class_maintenance, | |
1033 | rdilogfile_command, | |
1034 | "Set filename for ADP packet log.\n\ | |
1035 | This file is used to log Angel Debugger Protocol packets.\n\ | |
1036 | With a single argument, sets the logfile name to that value.\n\ | |
1037 | Without an argument, shows the current logfile name.\n\ | |
1038 | See also: rdilogenable\n", | |
1039 | &maintenancelist); | |
1040 | ||
4ce44c66 | 1041 | add_cmd ("rdilogenable", class_maintenance, |
5c44784c JM |
1042 | rdilogenable_command, |
1043 | "Set enable logging of ADP packets.\n\ | |
1044 | This will log ADP packets exchanged between gdb and the\n\ | |
1045 | rdi target device.\n\ | |
1046 | An argument of 1,t,true,y,yes will enable.\n\ | |
1047 | An argument of 0,f,false,n,no will disabled.\n\ | |
1048 | Withough an argument, it will display current state.\n", | |
1049 | &maintenancelist); | |
1050 | ||
1051 | add_show_from_set | |
1052 | (add_set_cmd ("rdiromatzero", no_class, | |
1053 | var_boolean, (char *) &rom_at_zero, | |
1054 | "Set target has ROM at addr 0.\n\ | |
1055 | A true value disables vector catching, false enables vector catching.\n\ | |
1056 | This is evaluated at the time the 'target rdi' command is executed\n", | |
1057 | &setlist), | |
4ce44c66 | 1058 | &showlist); |
5c44784c JM |
1059 | |
1060 | add_show_from_set | |
1061 | (add_set_cmd ("rdiheartbeat", no_class, | |
1062 | var_boolean, (char *) &rdi_heartbeat, | |
1063 | "Set enable for ADP heartbeat packets.\n\ | |
1064 | I don't know why you would want this. If you enable them,\n\ | |
1065 | it will confuse ARM and EPI JTAG interface boxes as well\n\ | |
1066 | as the Angel Monitor.\n", | |
1067 | &setlist), | |
4ce44c66 | 1068 | &showlist); |
c906108c SS |
1069 | } |
1070 | ||
1071 | /* A little dummy to make linking with the library succeed. */ | |
1072 | ||
c5aa993b | 1073 | int |
fba45db2 | 1074 | Fail (void) |
c5aa993b JM |
1075 | { |
1076 | return 0; | |
1077 | } |