Commit | Line | Data |
---|---|---|
c906108c SS |
1 | /* GDB interface to ARM RDI library. |
2 | Copyright 1997, 1998 Free Software Foundation, Inc. | |
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" | |
29 | #include "wait.h" | |
30 | #include "gdbcmd.h" | |
31 | #include "objfiles.h" | |
32 | #include "gdb-stabs.h" | |
33 | #include "gdbthread.h" | |
34 | #include "gdbcore.h" | |
35 | ||
36 | #ifdef USG | |
37 | #include <sys/types.h> | |
38 | #endif | |
39 | ||
40 | #include <signal.h> | |
41 | ||
42 | #include "rdi-share/ardi.h" | |
43 | #include "rdi-share/adp.h" | |
44 | #include "rdi-share/hsys.h" | |
45 | ||
46 | extern int isascii PARAMS ((int)); | |
47 | ||
48 | /* Prototypes for local functions */ | |
49 | ||
c5aa993b | 50 | static void arm_rdi_files_info PARAMS ((struct target_ops * ignore)); |
c906108c SS |
51 | |
52 | static int arm_rdi_xfer_memory PARAMS ((CORE_ADDR memaddr, char *myaddr, | |
c5aa993b JM |
53 | int len, int should_write, |
54 | struct target_ops * target)); | |
c906108c SS |
55 | |
56 | static void arm_rdi_prepare_to_store PARAMS ((void)); | |
57 | ||
58 | static void arm_rdi_fetch_registers PARAMS ((int regno)); | |
59 | ||
60 | static void arm_rdi_resume PARAMS ((int pid, int step, | |
c5aa993b | 61 | enum target_signal siggnal)); |
c906108c SS |
62 | |
63 | static int arm_rdi_start_remote PARAMS ((char *dummy)); | |
64 | ||
65 | static void arm_rdi_open PARAMS ((char *name, int from_tty)); | |
66 | ||
67 | static void arm_rdi_create_inferior PARAMS ((char *exec_file, char *args, | |
68 | char **env)); | |
69 | ||
70 | static void arm_rdi_close PARAMS ((int quitting)); | |
71 | ||
72 | static void arm_rdi_store_registers PARAMS ((int regno)); | |
73 | ||
74 | static void arm_rdi_mourn PARAMS ((void)); | |
75 | ||
76 | static void arm_rdi_send PARAMS ((char *buf)); | |
77 | ||
c5aa993b | 78 | static int arm_rdi_wait PARAMS ((int pid, struct target_waitstatus * status)); |
c906108c SS |
79 | |
80 | static void arm_rdi_kill PARAMS ((void)); | |
81 | ||
82 | static void arm_rdi_detach PARAMS ((char *args, int from_tty)); | |
83 | ||
84 | static void arm_rdi_interrupt PARAMS ((int signo)); | |
85 | ||
86 | static void arm_rdi_interrupt_twice PARAMS ((int signo)); | |
87 | ||
88 | static void interrupt_query PARAMS ((void)); | |
89 | ||
90 | static int arm_rdi_insert_breakpoint PARAMS ((CORE_ADDR, char *)); | |
91 | ||
92 | static int arm_rdi_remove_breakpoint PARAMS ((CORE_ADDR, char *)); | |
93 | ||
94 | static char *rdi_error_message PARAMS ((int err)); | |
95 | ||
96 | static enum target_signal rdi_error_signal PARAMS ((int err)); | |
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 | |
136 | arm_rdi_start_remote (dummy) | |
137 | char *dummy; | |
138 | { | |
139 | return 1; | |
140 | } | |
141 | ||
142 | /* Helper callbacks for the "host interface" structure. RDI functions call | |
143 | these to forward output from the target system and so forth. */ | |
144 | ||
145 | void | |
146 | voiddummy () | |
147 | { | |
148 | fprintf_unfiltered (gdb_stdout, "void dummy\n"); | |
149 | } | |
150 | ||
151 | static void | |
152 | myprint (arg, format, ap) | |
153 | PTR arg; | |
154 | const char *format; | |
155 | va_list ap; | |
156 | { | |
157 | vfprintf_unfiltered (gdb_stdout, format, ap); | |
158 | } | |
159 | ||
160 | static void | |
161 | mywritec (arg, c) | |
162 | PTR arg; | |
163 | int c; | |
164 | { | |
165 | if (isascii (c)) | |
166 | fputc_unfiltered (c, gdb_stdout); | |
167 | } | |
168 | ||
169 | static int | |
170 | mywrite (arg, buffer, len) | |
171 | PTR arg; | |
172 | char const *buffer; | |
173 | int len; | |
174 | { | |
175 | int i; | |
176 | char *e; | |
177 | ||
178 | e = (char *) buffer; | |
179 | for (i = 0; i < len; i++) | |
c5aa993b | 180 | { |
c906108c | 181 | if (isascii ((int) *e)) |
c5aa993b JM |
182 | { |
183 | fputc_unfiltered ((int) *e, gdb_stdout); | |
184 | e++; | |
185 | } | |
186 | } | |
c906108c SS |
187 | |
188 | return len; | |
189 | } | |
190 | ||
191 | static void | |
192 | mypause (arg) | |
193 | PTR arg; | |
194 | { | |
195 | } | |
196 | ||
197 | /* These last two are tricky as we have to handle the special case of | |
198 | being interrupted more carefully */ | |
199 | ||
200 | static int | |
201 | myreadc (arg) | |
202 | PTR arg; | |
c5aa993b | 203 | { |
c906108c SS |
204 | return fgetc (stdin); |
205 | } | |
206 | ||
207 | static char * | |
208 | mygets (arg, buffer, len) | |
209 | PTR arg; | |
210 | char *buffer; | |
211 | int len; | |
212 | { | |
c5aa993b | 213 | return fgets (buffer, len, stdin); |
c906108c SS |
214 | } |
215 | ||
216 | /* Prevent multiple calls to angel_RDI_close(). */ | |
217 | static int closed_already = 1; | |
218 | ||
219 | /* Open a connection to a remote debugger. NAME is the filename used | |
220 | for communication. */ | |
221 | ||
222 | static void | |
223 | arm_rdi_open (name, from_tty) | |
224 | char *name; | |
225 | int from_tty; | |
226 | { | |
227 | int rslt, i; | |
228 | unsigned long arg1, arg2; | |
5c44784c JM |
229 | char *openArgs = NULL; |
230 | char *devName = NULL; | |
231 | char *p; | |
c906108c SS |
232 | |
233 | if (name == NULL) | |
234 | error ("To open an RDI connection, you need to specify what serial\n\ | |
235 | device is attached to the remote system (e.g. /dev/ttya)."); | |
236 | ||
5c44784c JM |
237 | /* split name after whitespace, pass tail as arg to open command */ |
238 | ||
4ce44c66 JM |
239 | devName = strdup (name); |
240 | p = strchr (devName, ' '); | |
5c44784c JM |
241 | if (p) |
242 | { | |
243 | *p = '\0'; | |
244 | ++p; | |
245 | ||
246 | while (*p == ' ') | |
247 | ++p; | |
248 | ||
249 | openArgs = p; | |
250 | } | |
251 | ||
c906108c SS |
252 | /* Make the basic low-level connection. */ |
253 | ||
5c44784c JM |
254 | Adp_CloseDevice (); |
255 | rslt = Adp_OpenDevice (devName, openArgs, rdi_heartbeat); | |
c906108c SS |
256 | |
257 | if (rslt != adp_ok) | |
258 | error ("Could not open device \"%s\"", name); | |
259 | ||
260 | gdb_config.bytesex = 2 | (TARGET_BYTE_ORDER == BIG_ENDIAN ? 1 : 0); | |
261 | gdb_config.fpe = 1; | |
262 | gdb_config.rditype = 2; | |
263 | gdb_config.heartbeat_on = 1; | |
264 | gdb_config.flags = 2; | |
265 | ||
266 | gdb_hostif.dbgprint = myprint; | |
267 | gdb_hostif.dbgpause = mypause; | |
268 | gdb_hostif.dbgarg = NULL; | |
269 | gdb_hostif.writec = mywritec; | |
270 | gdb_hostif.readc = myreadc; | |
271 | gdb_hostif.write = mywrite; | |
272 | gdb_hostif.gets = mygets; | |
273 | gdb_hostif.hostosarg = NULL; | |
274 | gdb_hostif.reset = voiddummy; | |
275 | ||
276 | rslt = angel_RDI_open (10, &gdb_config, &gdb_hostif, NULL); | |
277 | if (rslt == RDIError_BigEndian || rslt == RDIError_LittleEndian) | |
c5aa993b | 278 | ; /* do nothing, this is the expected return */ |
c906108c SS |
279 | else if (rslt) |
280 | { | |
281 | printf_filtered ("RDI_open: %s\n", rdi_error_message (rslt)); | |
2acceee2 | 282 | Adp_CloseDevice (); |
4ce44c66 | 283 | error ("RID_open failed\n"); |
c906108c SS |
284 | } |
285 | ||
286 | rslt = angel_RDI_info (RDIInfo_Target, &arg1, &arg2); | |
287 | if (rslt) | |
288 | { | |
289 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
290 | } | |
291 | rslt = angel_RDI_info (RDIInfo_Points, &arg1, &arg2); | |
292 | if (rslt) | |
293 | { | |
294 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
295 | } | |
296 | rslt = angel_RDI_info (RDIInfo_Step, &arg1, &arg2); | |
297 | if (rslt) | |
298 | { | |
299 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
300 | } | |
301 | rslt = angel_RDI_info (RDIInfo_CoPro, &arg1, &arg2); | |
302 | if (rslt) | |
303 | { | |
304 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
305 | } | |
306 | rslt = angel_RDI_info (RDIInfo_SemiHosting, &arg1, &arg2); | |
307 | if (rslt) | |
308 | { | |
309 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
310 | } | |
311 | ||
312 | rslt = angel_RDI_info (RDIInfo_GetLoadSize, &arg1, &arg2); | |
313 | if (rslt) | |
314 | { | |
315 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
316 | } | |
317 | max_load_size = arg1; | |
318 | ||
319 | push_target (&arm_rdi_ops); | |
320 | ||
321 | target_fetch_registers (-1); | |
322 | ||
323 | rslt = angel_RDI_open (1, &gdb_config, NULL, NULL); | |
324 | if (rslt) | |
325 | { | |
326 | printf_filtered ("RDI_open: %s\n", rdi_error_message (rslt)); | |
327 | } | |
328 | ||
5c44784c JM |
329 | arg1 = rom_at_zero ? 0x0 : 0x13b; |
330 | ||
c906108c SS |
331 | rslt = angel_RDI_info (RDIVector_Catch, &arg1, &arg2); |
332 | if (rslt) | |
333 | { | |
334 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
335 | } | |
336 | ||
337 | arg1 = (unsigned long) ""; | |
338 | rslt = angel_RDI_info (RDISet_Cmdline, &arg1, &arg2); | |
339 | if (rslt) | |
340 | { | |
341 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
342 | } | |
343 | ||
344 | /* Clear out any existing records of breakpoints. */ | |
345 | { | |
346 | struct local_bp_list_entry *entry, *preventry = NULL; | |
347 | ||
348 | for (entry = local_bp_list; entry != NULL; entry = entry->next) | |
349 | { | |
350 | if (preventry) | |
351 | free (preventry); | |
352 | } | |
353 | } | |
354 | ||
355 | printf_filtered ("Connected to ARM RDI target.\n"); | |
356 | closed_already = 0; | |
357 | inferior_pid = 42; | |
358 | } | |
359 | ||
360 | /* Start an inferior process and set inferior_pid to its pid. | |
361 | EXEC_FILE is the file to run. | |
362 | ARGS is a string containing the arguments to the program. | |
363 | ENV is the environment vector to pass. Errors reported with error(). | |
364 | On VxWorks and various standalone systems, we ignore exec_file. */ | |
365 | /* This is called not only when we first attach, but also when the | |
366 | user types "run" after having attached. */ | |
367 | ||
368 | static void | |
369 | arm_rdi_create_inferior (exec_file, args, env) | |
370 | char *exec_file; | |
371 | char *args; | |
372 | char **env; | |
373 | { | |
374 | int len, rslt; | |
375 | unsigned long arg1, arg2; | |
376 | char *arg_buf; | |
377 | CORE_ADDR entry_point; | |
378 | ||
379 | if (exec_file == 0 || exec_bfd == 0) | |
c5aa993b | 380 | error ("No executable file specified."); |
c906108c SS |
381 | |
382 | entry_point = (CORE_ADDR) bfd_get_start_address (exec_bfd); | |
383 | ||
c5aa993b | 384 | arm_rdi_kill (); |
c906108c SS |
385 | remove_breakpoints (); |
386 | init_wait_for_inferior (); | |
387 | ||
c5aa993b | 388 | len = strlen (exec_file) + 1 + strlen (args) + 1 + /*slop */ 10; |
c906108c SS |
389 | arg_buf = (char *) alloca (len); |
390 | arg_buf[0] = '\0'; | |
391 | strcat (arg_buf, exec_file); | |
392 | strcat (arg_buf, " "); | |
393 | strcat (arg_buf, args); | |
394 | ||
395 | inferior_pid = 42; | |
c5aa993b | 396 | insert_breakpoints (); /* Needed to get correct instruction in cache */ |
c906108c SS |
397 | |
398 | if (env != NULL) | |
399 | { | |
400 | while (*env) | |
401 | { | |
402 | if (strncmp (*env, "MEMSIZE=", sizeof ("MEMSIZE=") - 1) == 0) | |
403 | { | |
404 | unsigned long top_of_memory; | |
405 | char *end_of_num; | |
406 | ||
407 | /* Set up memory limit */ | |
408 | top_of_memory = strtoul (*env + sizeof ("MEMSIZE=") - 1, | |
409 | &end_of_num, 0); | |
d4f3574e | 410 | printf_filtered ("Setting top-of-memory to 0x%lx\n", |
c906108c | 411 | top_of_memory); |
c5aa993b | 412 | |
c906108c SS |
413 | rslt = angel_RDI_info (RDIInfo_SetTopMem, &top_of_memory, &arg2); |
414 | if (rslt) | |
415 | { | |
416 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
417 | } | |
418 | } | |
419 | env++; | |
420 | } | |
421 | } | |
422 | ||
423 | arg1 = (unsigned long) arg_buf; | |
c5aa993b | 424 | rslt = angel_RDI_info (RDISet_Cmdline, /* &arg1 */ (unsigned long *) arg_buf, &arg2); |
c906108c SS |
425 | if (rslt) |
426 | { | |
427 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
428 | } | |
429 | ||
430 | proceed (entry_point, TARGET_SIGNAL_DEFAULT, 0); | |
431 | } | |
432 | ||
433 | /* This takes a program previously attached to and detaches it. After | |
434 | this is done, GDB can be used to debug some other program. We | |
435 | better not have left any breakpoints in the target program or it'll | |
436 | die when it hits one. */ | |
437 | ||
438 | static void | |
439 | arm_rdi_detach (args, from_tty) | |
440 | char *args; | |
441 | int from_tty; | |
442 | { | |
443 | pop_target (); | |
444 | } | |
445 | ||
446 | /* Clean up connection to a remote debugger. */ | |
447 | ||
448 | static void | |
449 | arm_rdi_close (quitting) | |
450 | int quitting; | |
451 | { | |
452 | int rslt; | |
453 | ||
c5aa993b | 454 | if (!closed_already) |
c906108c SS |
455 | { |
456 | rslt = angel_RDI_close (); | |
457 | if (rslt) | |
458 | { | |
459 | printf_filtered ("RDI_close: %s\n", rdi_error_message (rslt)); | |
460 | } | |
461 | closed_already = 1; | |
462 | inferior_pid = 0; | |
96baa820 | 463 | Adp_CloseDevice (); |
c906108c SS |
464 | } |
465 | } | |
466 | \f | |
467 | /* Tell the remote machine to resume. */ | |
468 | ||
469 | static void | |
470 | arm_rdi_resume (pid, step, siggnal) | |
471 | int pid, step; | |
472 | enum target_signal siggnal; | |
473 | { | |
474 | int rslt; | |
475 | PointHandle point; | |
476 | ||
c5aa993b | 477 | if (0 /* turn on when hardware supports single-stepping */ ) |
c906108c SS |
478 | { |
479 | rslt = angel_RDI_step (1, &point); | |
480 | if (rslt) | |
481 | { | |
482 | printf_filtered ("RDI_step: %s\n", rdi_error_message (rslt)); | |
483 | } | |
484 | } | |
485 | else | |
486 | { | |
487 | char handle[4]; | |
488 | CORE_ADDR pc; | |
489 | ||
490 | if (step) | |
491 | { | |
492 | pc = read_register (PC_REGNUM); | |
493 | pc = arm_get_next_pc (pc); | |
494 | arm_rdi_insert_breakpoint (pc, handle); | |
495 | } | |
496 | execute_status = rslt = angel_RDI_execute (&point); | |
497 | if (rslt == RDIError_BreakpointReached) | |
498 | ; | |
499 | else if (rslt) | |
500 | { | |
501 | printf_filtered ("RDI_execute: %s\n", rdi_error_message (rslt)); | |
502 | } | |
503 | if (step) | |
504 | { | |
505 | arm_rdi_remove_breakpoint (pc, handle); | |
506 | } | |
507 | } | |
508 | } | |
509 | \f | |
510 | /* Send ^C to target to halt it. Target will respond, and send us a | |
511 | packet. */ | |
512 | ||
513 | static void | |
514 | arm_rdi_interrupt (signo) | |
515 | int signo; | |
516 | { | |
517 | } | |
518 | ||
c5aa993b | 519 | static void (*ofunc) (); |
c906108c SS |
520 | |
521 | /* The user typed ^C twice. */ | |
522 | static void | |
523 | arm_rdi_interrupt_twice (signo) | |
524 | int signo; | |
525 | { | |
526 | } | |
527 | ||
528 | /* Ask the user what to do when an interrupt is received. */ | |
529 | ||
530 | static void | |
531 | interrupt_query () | |
532 | { | |
533 | } | |
534 | ||
535 | /* Wait until the remote machine stops, then return, storing status in | |
536 | STATUS just as `wait' would. Returns "pid" (though it's not clear | |
537 | what, if anything, that means in the case of this target). */ | |
538 | ||
539 | static int | |
540 | arm_rdi_wait (pid, status) | |
541 | int pid; | |
542 | struct target_waitstatus *status; | |
543 | { | |
544 | status->kind = (execute_status == RDIError_NoError ? | |
c5aa993b | 545 | TARGET_WAITKIND_EXITED : TARGET_WAITKIND_STOPPED); |
c906108c SS |
546 | |
547 | /* convert stopped code from target into right signal */ | |
548 | status->value.sig = rdi_error_signal (execute_status); | |
549 | ||
550 | return inferior_pid; | |
551 | } | |
552 | ||
553 | /* Read the remote registers into the block REGS. */ | |
554 | ||
555 | /* ARGSUSED */ | |
556 | static void | |
557 | arm_rdi_fetch_registers (regno) | |
558 | int regno; | |
559 | { | |
560 | int rslt, rdi_regmask; | |
561 | unsigned long rawreg, rawregs[32]; | |
562 | char cookedreg[4]; | |
563 | ||
c5aa993b | 564 | if (regno == -1) |
c906108c SS |
565 | { |
566 | rslt = angel_RDI_CPUread (255, 0x27fff, rawregs); | |
567 | if (rslt) | |
568 | { | |
569 | printf_filtered ("RDI_CPUread: %s\n", rdi_error_message (rslt)); | |
570 | } | |
571 | ||
572 | for (regno = 0; regno < 15; regno++) | |
573 | { | |
574 | store_unsigned_integer (cookedreg, 4, rawregs[regno]); | |
575 | supply_register (regno, (char *) cookedreg); | |
576 | } | |
577 | store_unsigned_integer (cookedreg, 4, rawregs[15]); | |
578 | supply_register (PS_REGNUM, (char *) cookedreg); | |
579 | arm_rdi_fetch_registers (PC_REGNUM); | |
580 | } | |
581 | else | |
582 | { | |
583 | if (regno == PC_REGNUM) | |
584 | rdi_regmask = RDIReg_PC; | |
585 | else if (regno == PS_REGNUM) | |
586 | rdi_regmask = RDIReg_CPSR; | |
587 | else if (regno < 0 || regno > 15) | |
588 | { | |
589 | rawreg = 0; | |
590 | supply_register (regno, (char *) &rawreg); | |
591 | return; | |
592 | } | |
593 | else | |
594 | rdi_regmask = 1 << regno; | |
595 | ||
596 | rslt = angel_RDI_CPUread (255, rdi_regmask, &rawreg); | |
597 | if (rslt) | |
598 | { | |
599 | printf_filtered ("RDI_CPUread: %s\n", rdi_error_message (rslt)); | |
600 | } | |
601 | store_unsigned_integer (cookedreg, 4, rawreg); | |
602 | supply_register (regno, (char *) cookedreg); | |
603 | } | |
604 | } | |
605 | ||
c5aa993b | 606 | static void |
c906108c SS |
607 | arm_rdi_prepare_to_store () |
608 | { | |
609 | /* Nothing to do. */ | |
610 | } | |
611 | ||
612 | /* Store register REGNO, or all registers if REGNO == -1, from the contents | |
613 | of REGISTERS. FIXME: ignores errors. */ | |
614 | ||
615 | static void | |
616 | arm_rdi_store_registers (regno) | |
617 | int regno; | |
618 | { | |
619 | int rslt, rdi_regmask; | |
620 | ||
621 | /* These need to be able to take 'floating point register' contents */ | |
622 | unsigned long rawreg[3], rawerreg[3]; | |
623 | ||
c5aa993b | 624 | if (regno == -1) |
c906108c SS |
625 | { |
626 | for (regno = 0; regno < NUM_REGS; regno++) | |
627 | arm_rdi_store_registers (regno); | |
628 | } | |
629 | else | |
630 | { | |
631 | read_register_gen (regno, (char *) rawreg); | |
632 | /* RDI manipulates data in host byte order, so convert now. */ | |
633 | store_unsigned_integer (rawerreg, 4, rawreg[0]); | |
634 | ||
635 | if (regno == PC_REGNUM) | |
636 | rdi_regmask = RDIReg_PC; | |
637 | else if (regno == PS_REGNUM) | |
638 | rdi_regmask = RDIReg_CPSR; | |
639 | else if (regno < 0 || regno > 15) | |
640 | return; | |
641 | else | |
642 | rdi_regmask = 1 << regno; | |
643 | ||
644 | rslt = angel_RDI_CPUwrite (255, rdi_regmask, rawerreg); | |
645 | if (rslt) | |
646 | { | |
647 | printf_filtered ("RDI_CPUwrite: %s\n", rdi_error_message (rslt)); | |
648 | } | |
649 | } | |
650 | } | |
651 | \f | |
652 | /* Read or write LEN bytes from inferior memory at MEMADDR, | |
653 | transferring to or from debugger address MYADDR. Write to inferior | |
654 | if SHOULD_WRITE is nonzero. Returns length of data written or | |
655 | read; 0 for error. */ | |
656 | ||
657 | /* ARGSUSED */ | |
658 | static int | |
c5aa993b | 659 | arm_rdi_xfer_memory (memaddr, myaddr, len, should_write, target) |
c906108c SS |
660 | CORE_ADDR memaddr; |
661 | char *myaddr; | |
662 | int len; | |
663 | int should_write; | |
c5aa993b | 664 | struct target_ops *target; /* ignored */ |
c906108c SS |
665 | { |
666 | int rslt, i; | |
667 | ||
668 | if (should_write) | |
669 | { | |
670 | rslt = angel_RDI_write (myaddr, memaddr, &len); | |
671 | if (rslt) | |
672 | { | |
673 | printf_filtered ("RDI_write: %s\n", rdi_error_message (rslt)); | |
674 | } | |
675 | } | |
c5aa993b | 676 | else |
c906108c SS |
677 | { |
678 | rslt = angel_RDI_read (memaddr, myaddr, &len); | |
679 | if (rslt) | |
680 | { | |
681 | printf_filtered ("RDI_read: %s\n", rdi_error_message (rslt)); | |
682 | len = 0; | |
683 | } | |
684 | } | |
685 | return len; | |
686 | } | |
687 | \f | |
688 | /* Display random info collected from the target. */ | |
689 | ||
690 | static void | |
691 | arm_rdi_files_info (ignore) | |
692 | struct target_ops *ignore; | |
693 | { | |
694 | char *file = "nothing"; | |
695 | int rslt; | |
696 | unsigned long arg1, arg2; | |
697 | ||
698 | rslt = angel_RDI_info (RDIInfo_Target, &arg1, &arg2); | |
699 | if (rslt) | |
700 | { | |
701 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
702 | } | |
703 | if (arg1 & (1 << 15)) | |
704 | printf_filtered ("Target supports Thumb code.\n"); | |
705 | if (arg1 & (1 << 14)) | |
706 | printf_filtered ("Target can do profiling.\n"); | |
707 | if (arg1 & (1 << 4)) | |
708 | printf_filtered ("Target is real hardware.\n"); | |
c5aa993b | 709 | |
c906108c SS |
710 | rslt = angel_RDI_info (RDIInfo_Step, &arg1, &arg2); |
711 | if (rslt) | |
712 | { | |
713 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
714 | } | |
715 | printf_filtered ("Target can%s single-step.\n", (arg1 & 0x4 ? "" : "not")); | |
716 | ||
717 | rslt = angel_RDI_info (RDIInfo_Icebreaker, &arg1, &arg2); | |
718 | if (rslt) | |
719 | { | |
720 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
721 | } | |
722 | else | |
723 | printf_filtered ("Target includes an EmbeddedICE.\n"); | |
724 | } | |
725 | \f | |
726 | static void | |
727 | arm_rdi_kill () | |
728 | { | |
729 | int rslt; | |
730 | ||
731 | rslt = angel_RDI_open (1, &gdb_config, NULL, NULL); | |
732 | if (rslt) | |
733 | { | |
734 | printf_filtered ("RDI_open: %s\n", rdi_error_message (rslt)); | |
735 | } | |
736 | } | |
737 | ||
738 | static void | |
739 | arm_rdi_mourn_inferior () | |
740 | { | |
741 | unpush_target (&arm_rdi_ops); | |
742 | generic_mourn_inferior (); | |
743 | } | |
744 | \f | |
745 | /* While the RDI library keeps track of its own breakpoints, we need | |
746 | to remember "handles" so that we can delete them later. Since | |
747 | breakpoints get used for stepping, be careful not to leak memory | |
748 | here. */ | |
749 | ||
750 | static int | |
751 | arm_rdi_insert_breakpoint (addr, contents_cache) | |
752 | CORE_ADDR addr; | |
753 | char *contents_cache; | |
754 | { | |
755 | int rslt; | |
756 | PointHandle point; | |
757 | struct local_bp_list_entry *entry; | |
758 | int type = RDIPoint_EQ; | |
759 | ||
760 | if (arm_pc_is_thumb (addr) || arm_pc_is_thumb_dummy (addr)) | |
761 | type |= RDIPoint_16Bit; | |
762 | rslt = angel_RDI_setbreak (addr, type, 0, &point); | |
763 | if (rslt) | |
764 | { | |
765 | printf_filtered ("RDI_setbreak: %s\n", rdi_error_message (rslt)); | |
766 | } | |
767 | entry = | |
768 | (struct local_bp_list_entry *) xmalloc (sizeof (struct local_bp_list_entry)); | |
769 | entry->addr = addr; | |
770 | entry->point = point; | |
771 | entry->next = local_bp_list; | |
772 | local_bp_list = entry; | |
773 | return rslt; | |
774 | } | |
775 | ||
776 | static int | |
777 | arm_rdi_remove_breakpoint (addr, contents_cache) | |
778 | CORE_ADDR addr; | |
779 | char *contents_cache; | |
780 | { | |
781 | int rslt; | |
782 | PointHandle point; | |
783 | struct local_bp_list_entry *entry, *preventry; | |
784 | ||
785 | for (entry = local_bp_list; entry != NULL; entry = entry->next) | |
786 | { | |
787 | if (entry->addr == addr) | |
788 | { | |
789 | break; | |
790 | } | |
791 | preventry = entry; | |
792 | } | |
793 | if (entry) | |
794 | { | |
795 | rslt = angel_RDI_clearbreak (entry->point); | |
796 | if (rslt) | |
797 | { | |
798 | printf_filtered ("RDI_clearbreak: %s\n", rdi_error_message (rslt)); | |
799 | } | |
800 | /* Delete the breakpoint entry locally. */ | |
801 | if (entry == local_bp_list) | |
802 | { | |
803 | local_bp_list = entry->next; | |
804 | } | |
805 | else | |
806 | { | |
807 | preventry->next = entry->next; | |
808 | } | |
809 | free (entry); | |
810 | } | |
811 | return 0; | |
812 | } | |
813 | \f | |
814 | static char * | |
815 | rdi_error_message (err) | |
816 | int err; | |
817 | { | |
818 | switch (err) | |
819 | { | |
c5aa993b | 820 | case RDIError_NoError: |
c906108c SS |
821 | return "no error"; |
822 | case RDIError_Reset: | |
823 | return "debuggee reset"; | |
824 | case RDIError_UndefinedInstruction: | |
825 | return "undefined instruction"; | |
826 | case RDIError_SoftwareInterrupt: | |
827 | return "SWI trapped"; | |
828 | case RDIError_PrefetchAbort: | |
829 | return "prefetch abort, execution ran into unmapped memory?"; | |
830 | case RDIError_DataAbort: | |
831 | return "data abort, no memory at specified address?"; | |
832 | case RDIError_AddressException: | |
833 | return "address exception, access >26bit in 26bit mode"; | |
834 | case RDIError_IRQ: | |
835 | return "IRQ, interrupt trapped"; | |
836 | case RDIError_FIQ: | |
837 | return "FIQ, fast interrupt trapped"; | |
838 | case RDIError_Error: | |
839 | return "a miscellaneous type of error"; | |
840 | case RDIError_BranchThrough0: | |
841 | return "branch through location 0"; | |
842 | case RDIError_NotInitialised: | |
843 | return "internal error, RDI_open not called first"; | |
844 | case RDIError_UnableToInitialise: | |
845 | return "internal error, target world is broken"; | |
846 | case RDIError_WrongByteSex: | |
847 | return "See Operator: WrongByteSex"; | |
848 | case RDIError_UnableToTerminate: | |
849 | return "See Operator: Unable to Terminate"; | |
850 | case RDIError_BadInstruction: | |
851 | return "bad instruction, illegal to execute this instruction"; | |
852 | case RDIError_IllegalInstruction: | |
853 | return "illegal instruction, the effect of executing it is undefined"; | |
854 | case RDIError_BadCPUStateSetting: | |
855 | return "internal error, tried to set SPSR of user mode"; | |
856 | case RDIError_UnknownCoPro: | |
857 | return "unknown co-processor"; | |
858 | case RDIError_UnknownCoProState: | |
859 | return "cannot execute co-processor request"; | |
860 | case RDIError_BadCoProState: | |
861 | return "recognizably broken co-processor request"; | |
862 | case RDIError_BadPointType: | |
863 | return "internal error, bad point yype"; | |
864 | case RDIError_UnimplementedType: | |
865 | return "internal error, unimplemented type"; | |
866 | case RDIError_BadPointSize: | |
867 | return "internal error, bad point size"; | |
868 | case RDIError_UnimplementedSize: | |
869 | return "internal error, unimplemented size"; | |
870 | case RDIError_NoMorePoints: | |
871 | return "last break/watch point was used"; | |
872 | case RDIError_BreakpointReached: | |
873 | return "breakpoint reached"; | |
874 | case RDIError_WatchpointAccessed: | |
875 | return "watchpoint accessed"; | |
876 | case RDIError_NoSuchPoint: | |
877 | return "attempted to clear non-existent break/watch point"; | |
878 | case RDIError_ProgramFinishedInStep: | |
879 | return "end of the program reached while stepping"; | |
880 | case RDIError_UserInterrupt: | |
881 | return "you pressed Escape"; | |
882 | case RDIError_CantSetPoint: | |
883 | return "no more break/watch points available"; | |
884 | case RDIError_IncompatibleRDILevels: | |
885 | return "incompatible RDI levels"; | |
886 | case RDIError_LittleEndian: | |
887 | return "debuggee is little endian"; | |
888 | case RDIError_BigEndian: | |
889 | return "debuggee is big endian"; | |
890 | case RDIError_SoftInitialiseError: | |
891 | return "recoverable error in RDI initialization"; | |
892 | case RDIError_InsufficientPrivilege: | |
893 | return "internal error, supervisor state not accessible to monitor"; | |
894 | case RDIError_UnimplementedMessage: | |
895 | return "internal error, unimplemented message"; | |
896 | case RDIError_UndefinedMessage: | |
897 | return "internal error, undefined message"; | |
898 | default: | |
c5aa993b | 899 | return "undefined error message, should reset target"; |
c906108c SS |
900 | } |
901 | } | |
902 | ||
903 | /* Convert the ARM error messages to signals that GDB knows about. */ | |
904 | ||
905 | static enum target_signal | |
906 | rdi_error_signal (err) | |
907 | int err; | |
908 | { | |
909 | switch (err) | |
910 | { | |
911 | case RDIError_NoError: | |
912 | return 0; | |
913 | case RDIError_Reset: | |
c5aa993b | 914 | return TARGET_SIGNAL_TERM; /* ??? */ |
c906108c SS |
915 | case RDIError_UndefinedInstruction: |
916 | return TARGET_SIGNAL_ILL; | |
917 | case RDIError_SoftwareInterrupt: | |
918 | case RDIError_PrefetchAbort: | |
919 | case RDIError_DataAbort: | |
920 | return TARGET_SIGNAL_TRAP; | |
921 | case RDIError_AddressException: | |
922 | return TARGET_SIGNAL_SEGV; | |
923 | case RDIError_IRQ: | |
924 | case RDIError_FIQ: | |
925 | return TARGET_SIGNAL_TRAP; | |
926 | case RDIError_Error: | |
927 | return TARGET_SIGNAL_TERM; | |
928 | case RDIError_BranchThrough0: | |
929 | return TARGET_SIGNAL_TRAP; | |
930 | case RDIError_NotInitialised: | |
931 | case RDIError_UnableToInitialise: | |
932 | case RDIError_WrongByteSex: | |
933 | case RDIError_UnableToTerminate: | |
934 | return TARGET_SIGNAL_UNKNOWN; | |
935 | case RDIError_BadInstruction: | |
936 | case RDIError_IllegalInstruction: | |
937 | return TARGET_SIGNAL_ILL; | |
938 | case RDIError_BadCPUStateSetting: | |
939 | case RDIError_UnknownCoPro: | |
940 | case RDIError_UnknownCoProState: | |
941 | case RDIError_BadCoProState: | |
942 | case RDIError_BadPointType: | |
943 | case RDIError_UnimplementedType: | |
944 | case RDIError_BadPointSize: | |
945 | case RDIError_UnimplementedSize: | |
946 | case RDIError_NoMorePoints: | |
947 | return TARGET_SIGNAL_UNKNOWN; | |
948 | case RDIError_BreakpointReached: | |
949 | case RDIError_WatchpointAccessed: | |
950 | return TARGET_SIGNAL_TRAP; | |
951 | case RDIError_NoSuchPoint: | |
952 | case RDIError_ProgramFinishedInStep: | |
953 | return TARGET_SIGNAL_UNKNOWN; | |
954 | case RDIError_UserInterrupt: | |
955 | return TARGET_SIGNAL_INT; | |
956 | case RDIError_IncompatibleRDILevels: | |
957 | case RDIError_LittleEndian: | |
958 | case RDIError_BigEndian: | |
959 | case RDIError_SoftInitialiseError: | |
960 | case RDIError_InsufficientPrivilege: | |
961 | case RDIError_UnimplementedMessage: | |
962 | case RDIError_UndefinedMessage: | |
963 | default: | |
c5aa993b | 964 | return TARGET_SIGNAL_UNKNOWN; |
c906108c SS |
965 | } |
966 | } | |
967 | \f | |
968 | /* Define the target operations structure. */ | |
969 | ||
970 | static void | |
971 | init_rdi_ops () | |
972 | { | |
c5aa993b | 973 | arm_rdi_ops.to_shortname = "rdi"; |
c906108c SS |
974 | arm_rdi_ops.to_longname = "ARM RDI"; |
975 | arm_rdi_ops.to_doc = "Use a remote ARM-based computer; via the RDI library.\n\ | |
c5aa993b JM |
976 | Specify the serial device it is connected to (e.g. /dev/ttya)."; |
977 | arm_rdi_ops.to_open = arm_rdi_open; | |
978 | arm_rdi_ops.to_close = arm_rdi_close; | |
979 | arm_rdi_ops.to_detach = arm_rdi_detach; | |
980 | arm_rdi_ops.to_resume = arm_rdi_resume; | |
981 | arm_rdi_ops.to_wait = arm_rdi_wait; | |
c906108c SS |
982 | arm_rdi_ops.to_fetch_registers = arm_rdi_fetch_registers; |
983 | arm_rdi_ops.to_store_registers = arm_rdi_store_registers; | |
984 | arm_rdi_ops.to_prepare_to_store = arm_rdi_prepare_to_store; | |
985 | arm_rdi_ops.to_xfer_memory = arm_rdi_xfer_memory; | |
986 | arm_rdi_ops.to_files_info = arm_rdi_files_info; | |
987 | arm_rdi_ops.to_insert_breakpoint = arm_rdi_insert_breakpoint; | |
c5aa993b JM |
988 | arm_rdi_ops.to_remove_breakpoint = arm_rdi_remove_breakpoint; |
989 | arm_rdi_ops.to_kill = arm_rdi_kill; | |
990 | arm_rdi_ops.to_load = generic_load; | |
c906108c SS |
991 | arm_rdi_ops.to_create_inferior = arm_rdi_create_inferior; |
992 | arm_rdi_ops.to_mourn_inferior = arm_rdi_mourn_inferior; | |
993 | arm_rdi_ops.to_stratum = process_stratum; | |
c5aa993b JM |
994 | arm_rdi_ops.to_has_all_memory = 1; |
995 | arm_rdi_ops.to_has_memory = 1; | |
996 | arm_rdi_ops.to_has_stack = 1; | |
997 | arm_rdi_ops.to_has_registers = 1; | |
998 | arm_rdi_ops.to_has_execution = 1; | |
999 | arm_rdi_ops.to_magic = OPS_MAGIC; | |
c906108c SS |
1000 | } |
1001 | ||
4ce44c66 JM |
1002 | static void |
1003 | rdilogfile_command (char *arg, int from_tty) | |
5c44784c JM |
1004 | { |
1005 | if (!arg || strlen (arg) == 0) | |
1006 | { | |
1007 | printf_filtered ("rdi log file is '%s'\n", log_filename); | |
1008 | return; | |
1009 | } | |
4ce44c66 | 1010 | |
5c44784c JM |
1011 | if (log_filename) |
1012 | free (log_filename); | |
4ce44c66 | 1013 | |
5c44784c JM |
1014 | log_filename = strdup (arg); |
1015 | ||
1016 | Adp_SetLogfile (log_filename); | |
1017 | } | |
1018 | ||
4ce44c66 JM |
1019 | static void |
1020 | rdilogenable_command (char *args, int from_tty) | |
5c44784c JM |
1021 | { |
1022 | if (!args || strlen (args) == 0) | |
1023 | { | |
1024 | printf_filtered ("rdi log is %s\n", log_enable ? "enabled" : "disabled"); | |
1025 | return; | |
1026 | } | |
4ce44c66 JM |
1027 | |
1028 | if (!strcasecmp (args, "1") || | |
1029 | !strcasecmp (args, "y") || | |
1030 | !strcasecmp (args, "yes") || | |
1031 | !strcasecmp (args, "on") || | |
1032 | !strcasecmp (args, "t") || | |
1033 | !strcasecmp (args, "true")) | |
1034 | Adp_SetLogEnable (log_enable = 1); | |
1035 | else if (!strcasecmp (args, "0") || | |
1036 | !strcasecmp (args, "n") || | |
1037 | !strcasecmp (args, "no") || | |
1038 | !strcasecmp (args, "off") || | |
1039 | !strcasecmp (args, "f") || | |
1040 | !strcasecmp (args, "false")) | |
1041 | Adp_SetLogEnable (log_enable = 0); | |
5c44784c JM |
1042 | else |
1043 | printf_filtered ("rdilogenable: unrecognized argument '%s'\n" | |
4ce44c66 | 1044 | " try y or n\n", args); |
5c44784c JM |
1045 | } |
1046 | ||
c906108c SS |
1047 | void |
1048 | _initialize_remote_rdi () | |
1049 | { | |
c5aa993b | 1050 | init_rdi_ops (); |
c906108c | 1051 | add_target (&arm_rdi_ops); |
5c44784c | 1052 | |
4ce44c66 JM |
1053 | log_filename = strdup ("rdi.log"); |
1054 | Adp_SetLogfile (log_filename); | |
1055 | Adp_SetLogEnable (log_enable); | |
5c44784c JM |
1056 | |
1057 | add_cmd ("rdilogfile", class_maintenance, | |
1058 | rdilogfile_command, | |
1059 | "Set filename for ADP packet log.\n\ | |
1060 | This file is used to log Angel Debugger Protocol packets.\n\ | |
1061 | With a single argument, sets the logfile name to that value.\n\ | |
1062 | Without an argument, shows the current logfile name.\n\ | |
1063 | See also: rdilogenable\n", | |
1064 | &maintenancelist); | |
1065 | ||
4ce44c66 | 1066 | add_cmd ("rdilogenable", class_maintenance, |
5c44784c JM |
1067 | rdilogenable_command, |
1068 | "Set enable logging of ADP packets.\n\ | |
1069 | This will log ADP packets exchanged between gdb and the\n\ | |
1070 | rdi target device.\n\ | |
1071 | An argument of 1,t,true,y,yes will enable.\n\ | |
1072 | An argument of 0,f,false,n,no will disabled.\n\ | |
1073 | Withough an argument, it will display current state.\n", | |
1074 | &maintenancelist); | |
1075 | ||
1076 | add_show_from_set | |
1077 | (add_set_cmd ("rdiromatzero", no_class, | |
1078 | var_boolean, (char *) &rom_at_zero, | |
1079 | "Set target has ROM at addr 0.\n\ | |
1080 | A true value disables vector catching, false enables vector catching.\n\ | |
1081 | This is evaluated at the time the 'target rdi' command is executed\n", | |
1082 | &setlist), | |
4ce44c66 | 1083 | &showlist); |
5c44784c JM |
1084 | |
1085 | add_show_from_set | |
1086 | (add_set_cmd ("rdiheartbeat", no_class, | |
1087 | var_boolean, (char *) &rdi_heartbeat, | |
1088 | "Set enable for ADP heartbeat packets.\n\ | |
1089 | I don't know why you would want this. If you enable them,\n\ | |
1090 | it will confuse ARM and EPI JTAG interface boxes as well\n\ | |
1091 | as the Angel Monitor.\n", | |
1092 | &setlist), | |
4ce44c66 | 1093 | &showlist); |
c906108c SS |
1094 | } |
1095 | ||
1096 | /* A little dummy to make linking with the library succeed. */ | |
1097 | ||
c5aa993b JM |
1098 | int |
1099 | Fail () | |
1100 | { | |
1101 | return 0; | |
1102 | } |