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" | |
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 | ||
47 | extern int isascii PARAMS ((int)); | |
48 | ||
49 | /* Prototypes for local functions */ | |
50 | ||
c5aa993b | 51 | static void arm_rdi_files_info PARAMS ((struct target_ops * ignore)); |
c906108c SS |
52 | |
53 | static int arm_rdi_xfer_memory PARAMS ((CORE_ADDR memaddr, char *myaddr, | |
c5aa993b JM |
54 | int len, int should_write, |
55 | struct target_ops * target)); | |
c906108c SS |
56 | |
57 | static void arm_rdi_prepare_to_store PARAMS ((void)); | |
58 | ||
59 | static void arm_rdi_fetch_registers PARAMS ((int regno)); | |
60 | ||
61 | static void arm_rdi_resume PARAMS ((int pid, int step, | |
c5aa993b | 62 | enum target_signal siggnal)); |
c906108c SS |
63 | |
64 | static int arm_rdi_start_remote PARAMS ((char *dummy)); | |
65 | ||
66 | static void arm_rdi_open PARAMS ((char *name, int from_tty)); | |
67 | ||
68 | static void arm_rdi_create_inferior PARAMS ((char *exec_file, char *args, | |
69 | char **env)); | |
70 | ||
71 | static void arm_rdi_close PARAMS ((int quitting)); | |
72 | ||
73 | static void arm_rdi_store_registers PARAMS ((int regno)); | |
74 | ||
75 | static void arm_rdi_mourn PARAMS ((void)); | |
76 | ||
77 | static void arm_rdi_send PARAMS ((char *buf)); | |
78 | ||
c5aa993b | 79 | static int arm_rdi_wait PARAMS ((int pid, struct target_waitstatus * status)); |
c906108c SS |
80 | |
81 | static void arm_rdi_kill PARAMS ((void)); | |
82 | ||
83 | static void arm_rdi_detach PARAMS ((char *args, int from_tty)); | |
84 | ||
85 | static void arm_rdi_interrupt PARAMS ((int signo)); | |
86 | ||
87 | static void arm_rdi_interrupt_twice PARAMS ((int signo)); | |
88 | ||
89 | static void interrupt_query PARAMS ((void)); | |
90 | ||
91 | static int arm_rdi_insert_breakpoint PARAMS ((CORE_ADDR, char *)); | |
92 | ||
93 | static int arm_rdi_remove_breakpoint PARAMS ((CORE_ADDR, char *)); | |
94 | ||
95 | static char *rdi_error_message PARAMS ((int err)); | |
96 | ||
97 | static enum target_signal rdi_error_signal PARAMS ((int err)); | |
98 | ||
99 | /* Global variables. */ | |
100 | ||
101 | struct target_ops arm_rdi_ops; | |
102 | ||
103 | static struct Dbg_ConfigBlock gdb_config; | |
104 | ||
105 | static struct Dbg_HostosInterface gdb_hostif; | |
106 | ||
107 | static int max_load_size; | |
108 | ||
109 | static int execute_status; | |
110 | ||
5c44784c | 111 | /* Send heatbeat packets? */ |
4ce44c66 | 112 | static int rdi_heartbeat = 0; |
5c44784c JM |
113 | |
114 | /* Target has ROM at address 0. */ | |
115 | static int rom_at_zero = 0; | |
116 | ||
117 | /* Enable logging? */ | |
4ce44c66 | 118 | static int log_enable = 0; |
5c44784c JM |
119 | |
120 | /* Name of the log file. Default is "rdi.log". */ | |
121 | static char *log_filename; | |
122 | ||
c906108c SS |
123 | /* A little list of breakpoints that have been set. */ |
124 | ||
c5aa993b JM |
125 | static struct local_bp_list_entry |
126 | { | |
127 | CORE_ADDR addr; | |
128 | PointHandle point; | |
129 | struct local_bp_list_entry *next; | |
130 | } | |
131 | *local_bp_list; | |
c906108c | 132 | \f |
c5aa993b | 133 | |
c906108c SS |
134 | /* Stub for catch_errors. */ |
135 | ||
136 | static int | |
137 | arm_rdi_start_remote (dummy) | |
138 | char *dummy; | |
139 | { | |
140 | return 1; | |
141 | } | |
142 | ||
143 | /* Helper callbacks for the "host interface" structure. RDI functions call | |
144 | these to forward output from the target system and so forth. */ | |
145 | ||
146 | void | |
147 | voiddummy () | |
148 | { | |
149 | fprintf_unfiltered (gdb_stdout, "void dummy\n"); | |
150 | } | |
151 | ||
152 | static void | |
153 | myprint (arg, format, ap) | |
154 | PTR arg; | |
155 | const char *format; | |
156 | va_list ap; | |
157 | { | |
158 | vfprintf_unfiltered (gdb_stdout, format, ap); | |
159 | } | |
160 | ||
161 | static void | |
162 | mywritec (arg, c) | |
163 | PTR arg; | |
164 | int c; | |
165 | { | |
166 | if (isascii (c)) | |
167 | fputc_unfiltered (c, gdb_stdout); | |
168 | } | |
169 | ||
170 | static int | |
171 | mywrite (arg, buffer, len) | |
172 | PTR arg; | |
173 | char const *buffer; | |
174 | int len; | |
175 | { | |
176 | int i; | |
177 | char *e; | |
178 | ||
179 | e = (char *) buffer; | |
180 | for (i = 0; i < len; i++) | |
c5aa993b | 181 | { |
c906108c | 182 | if (isascii ((int) *e)) |
c5aa993b JM |
183 | { |
184 | fputc_unfiltered ((int) *e, gdb_stdout); | |
185 | e++; | |
186 | } | |
187 | } | |
c906108c SS |
188 | |
189 | return len; | |
190 | } | |
191 | ||
192 | static void | |
193 | mypause (arg) | |
194 | PTR arg; | |
195 | { | |
196 | } | |
197 | ||
198 | /* These last two are tricky as we have to handle the special case of | |
199 | being interrupted more carefully */ | |
200 | ||
201 | static int | |
202 | myreadc (arg) | |
203 | PTR arg; | |
c5aa993b | 204 | { |
c906108c SS |
205 | return fgetc (stdin); |
206 | } | |
207 | ||
208 | static char * | |
209 | mygets (arg, buffer, len) | |
210 | PTR arg; | |
211 | char *buffer; | |
212 | int len; | |
213 | { | |
c5aa993b | 214 | return fgets (buffer, len, stdin); |
c906108c SS |
215 | } |
216 | ||
217 | /* Prevent multiple calls to angel_RDI_close(). */ | |
218 | static int closed_already = 1; | |
219 | ||
220 | /* Open a connection to a remote debugger. NAME is the filename used | |
221 | for communication. */ | |
222 | ||
223 | static void | |
224 | arm_rdi_open (name, from_tty) | |
225 | char *name; | |
226 | int from_tty; | |
227 | { | |
228 | int rslt, i; | |
229 | unsigned long arg1, arg2; | |
5c44784c JM |
230 | char *openArgs = NULL; |
231 | char *devName = NULL; | |
232 | char *p; | |
c906108c SS |
233 | |
234 | if (name == NULL) | |
235 | error ("To open an RDI connection, you need to specify what serial\n\ | |
236 | device is attached to the remote system (e.g. /dev/ttya)."); | |
237 | ||
5c44784c JM |
238 | /* split name after whitespace, pass tail as arg to open command */ |
239 | ||
c2d11a7d | 240 | devName = xstrdup (name); |
4ce44c66 | 241 | p = strchr (devName, ' '); |
5c44784c JM |
242 | if (p) |
243 | { | |
244 | *p = '\0'; | |
245 | ++p; | |
246 | ||
247 | while (*p == ' ') | |
248 | ++p; | |
249 | ||
250 | openArgs = p; | |
251 | } | |
252 | ||
c906108c SS |
253 | /* Make the basic low-level connection. */ |
254 | ||
c5394b80 | 255 | arm_rdi_close (0); |
5c44784c | 256 | rslt = Adp_OpenDevice (devName, openArgs, rdi_heartbeat); |
c906108c SS |
257 | |
258 | if (rslt != adp_ok) | |
259 | error ("Could not open device \"%s\"", name); | |
260 | ||
261 | gdb_config.bytesex = 2 | (TARGET_BYTE_ORDER == BIG_ENDIAN ? 1 : 0); | |
262 | gdb_config.fpe = 1; | |
263 | gdb_config.rditype = 2; | |
264 | gdb_config.heartbeat_on = 1; | |
265 | gdb_config.flags = 2; | |
266 | ||
267 | gdb_hostif.dbgprint = myprint; | |
268 | gdb_hostif.dbgpause = mypause; | |
269 | gdb_hostif.dbgarg = NULL; | |
270 | gdb_hostif.writec = mywritec; | |
271 | gdb_hostif.readc = myreadc; | |
272 | gdb_hostif.write = mywrite; | |
273 | gdb_hostif.gets = mygets; | |
274 | gdb_hostif.hostosarg = NULL; | |
275 | gdb_hostif.reset = voiddummy; | |
276 | ||
277 | rslt = angel_RDI_open (10, &gdb_config, &gdb_hostif, NULL); | |
278 | if (rslt == RDIError_BigEndian || rslt == RDIError_LittleEndian) | |
c5aa993b | 279 | ; /* do nothing, this is the expected return */ |
c906108c SS |
280 | else if (rslt) |
281 | { | |
282 | printf_filtered ("RDI_open: %s\n", rdi_error_message (rslt)); | |
2acceee2 | 283 | Adp_CloseDevice (); |
4ce44c66 | 284 | error ("RID_open failed\n"); |
c906108c SS |
285 | } |
286 | ||
287 | rslt = angel_RDI_info (RDIInfo_Target, &arg1, &arg2); | |
288 | if (rslt) | |
289 | { | |
290 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
291 | } | |
292 | rslt = angel_RDI_info (RDIInfo_Points, &arg1, &arg2); | |
293 | if (rslt) | |
294 | { | |
295 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
296 | } | |
297 | rslt = angel_RDI_info (RDIInfo_Step, &arg1, &arg2); | |
298 | if (rslt) | |
299 | { | |
300 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
301 | } | |
302 | rslt = angel_RDI_info (RDIInfo_CoPro, &arg1, &arg2); | |
303 | if (rslt) | |
304 | { | |
305 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
306 | } | |
307 | rslt = angel_RDI_info (RDIInfo_SemiHosting, &arg1, &arg2); | |
308 | if (rslt) | |
309 | { | |
310 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
311 | } | |
312 | ||
313 | rslt = angel_RDI_info (RDIInfo_GetLoadSize, &arg1, &arg2); | |
314 | if (rslt) | |
315 | { | |
316 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
317 | } | |
318 | max_load_size = arg1; | |
319 | ||
320 | push_target (&arm_rdi_ops); | |
321 | ||
322 | target_fetch_registers (-1); | |
323 | ||
324 | rslt = angel_RDI_open (1, &gdb_config, NULL, NULL); | |
325 | if (rslt) | |
326 | { | |
327 | printf_filtered ("RDI_open: %s\n", rdi_error_message (rslt)); | |
328 | } | |
329 | ||
5c44784c JM |
330 | arg1 = rom_at_zero ? 0x0 : 0x13b; |
331 | ||
c906108c SS |
332 | rslt = angel_RDI_info (RDIVector_Catch, &arg1, &arg2); |
333 | if (rslt) | |
334 | { | |
335 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
336 | } | |
337 | ||
338 | arg1 = (unsigned long) ""; | |
339 | rslt = angel_RDI_info (RDISet_Cmdline, &arg1, &arg2); | |
340 | if (rslt) | |
341 | { | |
342 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
343 | } | |
344 | ||
345 | /* Clear out any existing records of breakpoints. */ | |
346 | { | |
347 | struct local_bp_list_entry *entry, *preventry = NULL; | |
348 | ||
349 | for (entry = local_bp_list; entry != NULL; entry = entry->next) | |
350 | { | |
351 | if (preventry) | |
352 | free (preventry); | |
353 | } | |
354 | } | |
355 | ||
356 | printf_filtered ("Connected to ARM RDI target.\n"); | |
357 | closed_already = 0; | |
358 | inferior_pid = 42; | |
359 | } | |
360 | ||
361 | /* Start an inferior process and set inferior_pid to its pid. | |
362 | EXEC_FILE is the file to run. | |
363 | ARGS is a string containing the arguments to the program. | |
364 | ENV is the environment vector to pass. Errors reported with error(). | |
365 | On VxWorks and various standalone systems, we ignore exec_file. */ | |
366 | /* This is called not only when we first attach, but also when the | |
367 | user types "run" after having attached. */ | |
368 | ||
369 | static void | |
370 | arm_rdi_create_inferior (exec_file, args, env) | |
371 | char *exec_file; | |
372 | char *args; | |
373 | char **env; | |
374 | { | |
375 | int len, rslt; | |
376 | unsigned long arg1, arg2; | |
377 | char *arg_buf; | |
378 | CORE_ADDR entry_point; | |
379 | ||
380 | if (exec_file == 0 || exec_bfd == 0) | |
c5aa993b | 381 | error ("No executable file specified."); |
c906108c SS |
382 | |
383 | entry_point = (CORE_ADDR) bfd_get_start_address (exec_bfd); | |
384 | ||
c5aa993b | 385 | arm_rdi_kill (); |
c906108c SS |
386 | remove_breakpoints (); |
387 | init_wait_for_inferior (); | |
388 | ||
c5aa993b | 389 | len = strlen (exec_file) + 1 + strlen (args) + 1 + /*slop */ 10; |
c906108c SS |
390 | arg_buf = (char *) alloca (len); |
391 | arg_buf[0] = '\0'; | |
392 | strcat (arg_buf, exec_file); | |
393 | strcat (arg_buf, " "); | |
394 | strcat (arg_buf, args); | |
395 | ||
396 | inferior_pid = 42; | |
c5aa993b | 397 | insert_breakpoints (); /* Needed to get correct instruction in cache */ |
c906108c SS |
398 | |
399 | if (env != NULL) | |
400 | { | |
401 | while (*env) | |
402 | { | |
403 | if (strncmp (*env, "MEMSIZE=", sizeof ("MEMSIZE=") - 1) == 0) | |
404 | { | |
405 | unsigned long top_of_memory; | |
406 | char *end_of_num; | |
407 | ||
408 | /* Set up memory limit */ | |
409 | top_of_memory = strtoul (*env + sizeof ("MEMSIZE=") - 1, | |
410 | &end_of_num, 0); | |
d4f3574e | 411 | printf_filtered ("Setting top-of-memory to 0x%lx\n", |
c906108c | 412 | top_of_memory); |
c5aa993b | 413 | |
c906108c SS |
414 | rslt = angel_RDI_info (RDIInfo_SetTopMem, &top_of_memory, &arg2); |
415 | if (rslt) | |
416 | { | |
417 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
418 | } | |
419 | } | |
420 | env++; | |
421 | } | |
422 | } | |
423 | ||
424 | arg1 = (unsigned long) arg_buf; | |
c5aa993b | 425 | rslt = angel_RDI_info (RDISet_Cmdline, /* &arg1 */ (unsigned long *) arg_buf, &arg2); |
c906108c SS |
426 | if (rslt) |
427 | { | |
428 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
429 | } | |
430 | ||
431 | proceed (entry_point, TARGET_SIGNAL_DEFAULT, 0); | |
432 | } | |
433 | ||
434 | /* This takes a program previously attached to and detaches it. After | |
435 | this is done, GDB can be used to debug some other program. We | |
436 | better not have left any breakpoints in the target program or it'll | |
437 | die when it hits one. */ | |
438 | ||
439 | static void | |
440 | arm_rdi_detach (args, from_tty) | |
441 | char *args; | |
442 | int from_tty; | |
443 | { | |
444 | pop_target (); | |
445 | } | |
446 | ||
447 | /* Clean up connection to a remote debugger. */ | |
448 | ||
449 | static void | |
450 | arm_rdi_close (quitting) | |
451 | int quitting; | |
452 | { | |
453 | int rslt; | |
454 | ||
c5aa993b | 455 | if (!closed_already) |
c906108c SS |
456 | { |
457 | rslt = angel_RDI_close (); | |
458 | if (rslt) | |
459 | { | |
460 | printf_filtered ("RDI_close: %s\n", rdi_error_message (rslt)); | |
461 | } | |
462 | closed_already = 1; | |
463 | inferior_pid = 0; | |
96baa820 | 464 | Adp_CloseDevice (); |
c906108c SS |
465 | } |
466 | } | |
467 | \f | |
468 | /* Tell the remote machine to resume. */ | |
469 | ||
470 | static void | |
471 | arm_rdi_resume (pid, step, siggnal) | |
472 | int pid, step; | |
473 | enum target_signal siggnal; | |
474 | { | |
475 | int rslt; | |
476 | PointHandle point; | |
477 | ||
c5aa993b | 478 | if (0 /* turn on when hardware supports single-stepping */ ) |
c906108c SS |
479 | { |
480 | rslt = angel_RDI_step (1, &point); | |
481 | if (rslt) | |
482 | { | |
483 | printf_filtered ("RDI_step: %s\n", rdi_error_message (rslt)); | |
484 | } | |
485 | } | |
486 | else | |
487 | { | |
488 | char handle[4]; | |
489 | CORE_ADDR pc; | |
490 | ||
491 | if (step) | |
492 | { | |
493 | pc = read_register (PC_REGNUM); | |
494 | pc = arm_get_next_pc (pc); | |
495 | arm_rdi_insert_breakpoint (pc, handle); | |
496 | } | |
497 | execute_status = rslt = angel_RDI_execute (&point); | |
498 | if (rslt == RDIError_BreakpointReached) | |
499 | ; | |
500 | else if (rslt) | |
501 | { | |
502 | printf_filtered ("RDI_execute: %s\n", rdi_error_message (rslt)); | |
503 | } | |
504 | if (step) | |
505 | { | |
506 | arm_rdi_remove_breakpoint (pc, handle); | |
507 | } | |
508 | } | |
509 | } | |
510 | \f | |
511 | /* Send ^C to target to halt it. Target will respond, and send us a | |
512 | packet. */ | |
513 | ||
514 | static void | |
515 | arm_rdi_interrupt (signo) | |
516 | int signo; | |
517 | { | |
518 | } | |
519 | ||
c5aa993b | 520 | static void (*ofunc) (); |
c906108c SS |
521 | |
522 | /* The user typed ^C twice. */ | |
523 | static void | |
524 | arm_rdi_interrupt_twice (signo) | |
525 | int signo; | |
526 | { | |
527 | } | |
528 | ||
529 | /* Ask the user what to do when an interrupt is received. */ | |
530 | ||
531 | static void | |
532 | interrupt_query () | |
533 | { | |
534 | } | |
535 | ||
536 | /* Wait until the remote machine stops, then return, storing status in | |
537 | STATUS just as `wait' would. Returns "pid" (though it's not clear | |
538 | what, if anything, that means in the case of this target). */ | |
539 | ||
540 | static int | |
541 | arm_rdi_wait (pid, status) | |
542 | int pid; | |
543 | struct target_waitstatus *status; | |
544 | { | |
545 | status->kind = (execute_status == RDIError_NoError ? | |
c5aa993b | 546 | TARGET_WAITKIND_EXITED : TARGET_WAITKIND_STOPPED); |
c906108c SS |
547 | |
548 | /* convert stopped code from target into right signal */ | |
549 | status->value.sig = rdi_error_signal (execute_status); | |
550 | ||
551 | return inferior_pid; | |
552 | } | |
553 | ||
554 | /* Read the remote registers into the block REGS. */ | |
555 | ||
556 | /* ARGSUSED */ | |
557 | static void | |
558 | arm_rdi_fetch_registers (regno) | |
559 | int regno; | |
560 | { | |
561 | int rslt, rdi_regmask; | |
562 | unsigned long rawreg, rawregs[32]; | |
563 | char cookedreg[4]; | |
564 | ||
c5aa993b | 565 | if (regno == -1) |
c906108c SS |
566 | { |
567 | rslt = angel_RDI_CPUread (255, 0x27fff, rawregs); | |
568 | if (rslt) | |
569 | { | |
570 | printf_filtered ("RDI_CPUread: %s\n", rdi_error_message (rslt)); | |
571 | } | |
572 | ||
573 | for (regno = 0; regno < 15; regno++) | |
574 | { | |
575 | store_unsigned_integer (cookedreg, 4, rawregs[regno]); | |
576 | supply_register (regno, (char *) cookedreg); | |
577 | } | |
578 | store_unsigned_integer (cookedreg, 4, rawregs[15]); | |
579 | supply_register (PS_REGNUM, (char *) cookedreg); | |
580 | arm_rdi_fetch_registers (PC_REGNUM); | |
581 | } | |
582 | else | |
583 | { | |
584 | if (regno == PC_REGNUM) | |
585 | rdi_regmask = RDIReg_PC; | |
586 | else if (regno == PS_REGNUM) | |
587 | rdi_regmask = RDIReg_CPSR; | |
588 | else if (regno < 0 || regno > 15) | |
589 | { | |
590 | rawreg = 0; | |
591 | supply_register (regno, (char *) &rawreg); | |
592 | return; | |
593 | } | |
594 | else | |
595 | rdi_regmask = 1 << regno; | |
596 | ||
597 | rslt = angel_RDI_CPUread (255, rdi_regmask, &rawreg); | |
598 | if (rslt) | |
599 | { | |
600 | printf_filtered ("RDI_CPUread: %s\n", rdi_error_message (rslt)); | |
601 | } | |
602 | store_unsigned_integer (cookedreg, 4, rawreg); | |
603 | supply_register (regno, (char *) cookedreg); | |
604 | } | |
605 | } | |
606 | ||
c5aa993b | 607 | static void |
c906108c SS |
608 | arm_rdi_prepare_to_store () |
609 | { | |
610 | /* Nothing to do. */ | |
611 | } | |
612 | ||
613 | /* Store register REGNO, or all registers if REGNO == -1, from the contents | |
614 | of REGISTERS. FIXME: ignores errors. */ | |
615 | ||
616 | static void | |
617 | arm_rdi_store_registers (regno) | |
618 | int regno; | |
619 | { | |
620 | int rslt, rdi_regmask; | |
621 | ||
622 | /* These need to be able to take 'floating point register' contents */ | |
623 | unsigned long rawreg[3], rawerreg[3]; | |
624 | ||
c5aa993b | 625 | if (regno == -1) |
c906108c SS |
626 | { |
627 | for (regno = 0; regno < NUM_REGS; regno++) | |
628 | arm_rdi_store_registers (regno); | |
629 | } | |
630 | else | |
631 | { | |
632 | read_register_gen (regno, (char *) rawreg); | |
633 | /* RDI manipulates data in host byte order, so convert now. */ | |
634 | store_unsigned_integer (rawerreg, 4, rawreg[0]); | |
635 | ||
636 | if (regno == PC_REGNUM) | |
637 | rdi_regmask = RDIReg_PC; | |
638 | else if (regno == PS_REGNUM) | |
639 | rdi_regmask = RDIReg_CPSR; | |
640 | else if (regno < 0 || regno > 15) | |
641 | return; | |
642 | else | |
643 | rdi_regmask = 1 << regno; | |
644 | ||
645 | rslt = angel_RDI_CPUwrite (255, rdi_regmask, rawerreg); | |
646 | if (rslt) | |
647 | { | |
648 | printf_filtered ("RDI_CPUwrite: %s\n", rdi_error_message (rslt)); | |
649 | } | |
650 | } | |
651 | } | |
652 | \f | |
653 | /* Read or write LEN bytes from inferior memory at MEMADDR, | |
654 | transferring to or from debugger address MYADDR. Write to inferior | |
655 | if SHOULD_WRITE is nonzero. Returns length of data written or | |
656 | read; 0 for error. */ | |
657 | ||
658 | /* ARGSUSED */ | |
659 | static int | |
c5aa993b | 660 | arm_rdi_xfer_memory (memaddr, myaddr, len, should_write, target) |
c906108c SS |
661 | CORE_ADDR memaddr; |
662 | char *myaddr; | |
663 | int len; | |
664 | int should_write; | |
c5aa993b | 665 | struct target_ops *target; /* ignored */ |
c906108c SS |
666 | { |
667 | int rslt, i; | |
668 | ||
669 | if (should_write) | |
670 | { | |
671 | rslt = angel_RDI_write (myaddr, memaddr, &len); | |
672 | if (rslt) | |
673 | { | |
674 | printf_filtered ("RDI_write: %s\n", rdi_error_message (rslt)); | |
675 | } | |
676 | } | |
c5aa993b | 677 | else |
c906108c SS |
678 | { |
679 | rslt = angel_RDI_read (memaddr, myaddr, &len); | |
680 | if (rslt) | |
681 | { | |
682 | printf_filtered ("RDI_read: %s\n", rdi_error_message (rslt)); | |
683 | len = 0; | |
684 | } | |
685 | } | |
686 | return len; | |
687 | } | |
688 | \f | |
689 | /* Display random info collected from the target. */ | |
690 | ||
691 | static void | |
692 | arm_rdi_files_info (ignore) | |
693 | struct target_ops *ignore; | |
694 | { | |
695 | char *file = "nothing"; | |
696 | int rslt; | |
697 | unsigned long arg1, arg2; | |
698 | ||
699 | rslt = angel_RDI_info (RDIInfo_Target, &arg1, &arg2); | |
700 | if (rslt) | |
701 | { | |
702 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
703 | } | |
704 | if (arg1 & (1 << 15)) | |
705 | printf_filtered ("Target supports Thumb code.\n"); | |
706 | if (arg1 & (1 << 14)) | |
707 | printf_filtered ("Target can do profiling.\n"); | |
708 | if (arg1 & (1 << 4)) | |
709 | printf_filtered ("Target is real hardware.\n"); | |
c5aa993b | 710 | |
c906108c SS |
711 | rslt = angel_RDI_info (RDIInfo_Step, &arg1, &arg2); |
712 | if (rslt) | |
713 | { | |
714 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
715 | } | |
716 | printf_filtered ("Target can%s single-step.\n", (arg1 & 0x4 ? "" : "not")); | |
717 | ||
718 | rslt = angel_RDI_info (RDIInfo_Icebreaker, &arg1, &arg2); | |
719 | if (rslt) | |
720 | { | |
721 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
722 | } | |
723 | else | |
724 | printf_filtered ("Target includes an EmbeddedICE.\n"); | |
725 | } | |
726 | \f | |
727 | static void | |
728 | arm_rdi_kill () | |
729 | { | |
730 | int rslt; | |
731 | ||
732 | rslt = angel_RDI_open (1, &gdb_config, NULL, NULL); | |
733 | if (rslt) | |
734 | { | |
735 | printf_filtered ("RDI_open: %s\n", rdi_error_message (rslt)); | |
736 | } | |
737 | } | |
738 | ||
739 | static void | |
740 | arm_rdi_mourn_inferior () | |
741 | { | |
da59e081 JM |
742 | /* We remove the inserted breakpoints in case the user wants to |
743 | issue another target and load commands to rerun his application; | |
744 | This is something that wouldn't work on a native target, for instance, | |
745 | as the process goes away when the inferior exits, but it works with | |
746 | some remote targets like this one. That is why this is done here. */ | |
747 | remove_breakpoints(); | |
c906108c SS |
748 | unpush_target (&arm_rdi_ops); |
749 | generic_mourn_inferior (); | |
750 | } | |
751 | \f | |
752 | /* While the RDI library keeps track of its own breakpoints, we need | |
753 | to remember "handles" so that we can delete them later. Since | |
754 | breakpoints get used for stepping, be careful not to leak memory | |
755 | here. */ | |
756 | ||
757 | static int | |
758 | arm_rdi_insert_breakpoint (addr, contents_cache) | |
759 | CORE_ADDR addr; | |
760 | char *contents_cache; | |
761 | { | |
762 | int rslt; | |
763 | PointHandle point; | |
764 | struct local_bp_list_entry *entry; | |
765 | int type = RDIPoint_EQ; | |
766 | ||
767 | if (arm_pc_is_thumb (addr) || arm_pc_is_thumb_dummy (addr)) | |
768 | type |= RDIPoint_16Bit; | |
769 | rslt = angel_RDI_setbreak (addr, type, 0, &point); | |
770 | if (rslt) | |
771 | { | |
772 | printf_filtered ("RDI_setbreak: %s\n", rdi_error_message (rslt)); | |
773 | } | |
774 | entry = | |
775 | (struct local_bp_list_entry *) xmalloc (sizeof (struct local_bp_list_entry)); | |
776 | entry->addr = addr; | |
777 | entry->point = point; | |
778 | entry->next = local_bp_list; | |
779 | local_bp_list = entry; | |
780 | return rslt; | |
781 | } | |
782 | ||
783 | static int | |
784 | arm_rdi_remove_breakpoint (addr, contents_cache) | |
785 | CORE_ADDR addr; | |
786 | char *contents_cache; | |
787 | { | |
788 | int rslt; | |
789 | PointHandle point; | |
790 | struct local_bp_list_entry *entry, *preventry; | |
791 | ||
792 | for (entry = local_bp_list; entry != NULL; entry = entry->next) | |
793 | { | |
794 | if (entry->addr == addr) | |
795 | { | |
796 | break; | |
797 | } | |
798 | preventry = entry; | |
799 | } | |
800 | if (entry) | |
801 | { | |
802 | rslt = angel_RDI_clearbreak (entry->point); | |
803 | if (rslt) | |
804 | { | |
805 | printf_filtered ("RDI_clearbreak: %s\n", rdi_error_message (rslt)); | |
806 | } | |
807 | /* Delete the breakpoint entry locally. */ | |
808 | if (entry == local_bp_list) | |
809 | { | |
810 | local_bp_list = entry->next; | |
811 | } | |
812 | else | |
813 | { | |
814 | preventry->next = entry->next; | |
815 | } | |
816 | free (entry); | |
817 | } | |
818 | return 0; | |
819 | } | |
820 | \f | |
821 | static char * | |
822 | rdi_error_message (err) | |
823 | int err; | |
824 | { | |
825 | switch (err) | |
826 | { | |
c5aa993b | 827 | case RDIError_NoError: |
c906108c SS |
828 | return "no error"; |
829 | case RDIError_Reset: | |
830 | return "debuggee reset"; | |
831 | case RDIError_UndefinedInstruction: | |
832 | return "undefined instruction"; | |
833 | case RDIError_SoftwareInterrupt: | |
834 | return "SWI trapped"; | |
835 | case RDIError_PrefetchAbort: | |
836 | return "prefetch abort, execution ran into unmapped memory?"; | |
837 | case RDIError_DataAbort: | |
838 | return "data abort, no memory at specified address?"; | |
839 | case RDIError_AddressException: | |
840 | return "address exception, access >26bit in 26bit mode"; | |
841 | case RDIError_IRQ: | |
842 | return "IRQ, interrupt trapped"; | |
843 | case RDIError_FIQ: | |
844 | return "FIQ, fast interrupt trapped"; | |
845 | case RDIError_Error: | |
846 | return "a miscellaneous type of error"; | |
847 | case RDIError_BranchThrough0: | |
848 | return "branch through location 0"; | |
849 | case RDIError_NotInitialised: | |
850 | return "internal error, RDI_open not called first"; | |
851 | case RDIError_UnableToInitialise: | |
852 | return "internal error, target world is broken"; | |
853 | case RDIError_WrongByteSex: | |
854 | return "See Operator: WrongByteSex"; | |
855 | case RDIError_UnableToTerminate: | |
856 | return "See Operator: Unable to Terminate"; | |
857 | case RDIError_BadInstruction: | |
858 | return "bad instruction, illegal to execute this instruction"; | |
859 | case RDIError_IllegalInstruction: | |
860 | return "illegal instruction, the effect of executing it is undefined"; | |
861 | case RDIError_BadCPUStateSetting: | |
862 | return "internal error, tried to set SPSR of user mode"; | |
863 | case RDIError_UnknownCoPro: | |
864 | return "unknown co-processor"; | |
865 | case RDIError_UnknownCoProState: | |
866 | return "cannot execute co-processor request"; | |
867 | case RDIError_BadCoProState: | |
868 | return "recognizably broken co-processor request"; | |
869 | case RDIError_BadPointType: | |
870 | return "internal error, bad point yype"; | |
871 | case RDIError_UnimplementedType: | |
872 | return "internal error, unimplemented type"; | |
873 | case RDIError_BadPointSize: | |
874 | return "internal error, bad point size"; | |
875 | case RDIError_UnimplementedSize: | |
876 | return "internal error, unimplemented size"; | |
877 | case RDIError_NoMorePoints: | |
878 | return "last break/watch point was used"; | |
879 | case RDIError_BreakpointReached: | |
880 | return "breakpoint reached"; | |
881 | case RDIError_WatchpointAccessed: | |
882 | return "watchpoint accessed"; | |
883 | case RDIError_NoSuchPoint: | |
884 | return "attempted to clear non-existent break/watch point"; | |
885 | case RDIError_ProgramFinishedInStep: | |
886 | return "end of the program reached while stepping"; | |
887 | case RDIError_UserInterrupt: | |
888 | return "you pressed Escape"; | |
889 | case RDIError_CantSetPoint: | |
890 | return "no more break/watch points available"; | |
891 | case RDIError_IncompatibleRDILevels: | |
892 | return "incompatible RDI levels"; | |
893 | case RDIError_LittleEndian: | |
894 | return "debuggee is little endian"; | |
895 | case RDIError_BigEndian: | |
896 | return "debuggee is big endian"; | |
897 | case RDIError_SoftInitialiseError: | |
898 | return "recoverable error in RDI initialization"; | |
899 | case RDIError_InsufficientPrivilege: | |
900 | return "internal error, supervisor state not accessible to monitor"; | |
901 | case RDIError_UnimplementedMessage: | |
902 | return "internal error, unimplemented message"; | |
903 | case RDIError_UndefinedMessage: | |
904 | return "internal error, undefined message"; | |
905 | default: | |
c5aa993b | 906 | return "undefined error message, should reset target"; |
c906108c SS |
907 | } |
908 | } | |
909 | ||
910 | /* Convert the ARM error messages to signals that GDB knows about. */ | |
911 | ||
912 | static enum target_signal | |
913 | rdi_error_signal (err) | |
914 | int err; | |
915 | { | |
916 | switch (err) | |
917 | { | |
918 | case RDIError_NoError: | |
919 | return 0; | |
920 | case RDIError_Reset: | |
c5aa993b | 921 | return TARGET_SIGNAL_TERM; /* ??? */ |
c906108c SS |
922 | case RDIError_UndefinedInstruction: |
923 | return TARGET_SIGNAL_ILL; | |
924 | case RDIError_SoftwareInterrupt: | |
925 | case RDIError_PrefetchAbort: | |
926 | case RDIError_DataAbort: | |
927 | return TARGET_SIGNAL_TRAP; | |
928 | case RDIError_AddressException: | |
929 | return TARGET_SIGNAL_SEGV; | |
930 | case RDIError_IRQ: | |
931 | case RDIError_FIQ: | |
932 | return TARGET_SIGNAL_TRAP; | |
933 | case RDIError_Error: | |
934 | return TARGET_SIGNAL_TERM; | |
935 | case RDIError_BranchThrough0: | |
936 | return TARGET_SIGNAL_TRAP; | |
937 | case RDIError_NotInitialised: | |
938 | case RDIError_UnableToInitialise: | |
939 | case RDIError_WrongByteSex: | |
940 | case RDIError_UnableToTerminate: | |
941 | return TARGET_SIGNAL_UNKNOWN; | |
942 | case RDIError_BadInstruction: | |
943 | case RDIError_IllegalInstruction: | |
944 | return TARGET_SIGNAL_ILL; | |
945 | case RDIError_BadCPUStateSetting: | |
946 | case RDIError_UnknownCoPro: | |
947 | case RDIError_UnknownCoProState: | |
948 | case RDIError_BadCoProState: | |
949 | case RDIError_BadPointType: | |
950 | case RDIError_UnimplementedType: | |
951 | case RDIError_BadPointSize: | |
952 | case RDIError_UnimplementedSize: | |
953 | case RDIError_NoMorePoints: | |
954 | return TARGET_SIGNAL_UNKNOWN; | |
955 | case RDIError_BreakpointReached: | |
956 | case RDIError_WatchpointAccessed: | |
957 | return TARGET_SIGNAL_TRAP; | |
958 | case RDIError_NoSuchPoint: | |
959 | case RDIError_ProgramFinishedInStep: | |
960 | return TARGET_SIGNAL_UNKNOWN; | |
961 | case RDIError_UserInterrupt: | |
962 | return TARGET_SIGNAL_INT; | |
963 | case RDIError_IncompatibleRDILevels: | |
964 | case RDIError_LittleEndian: | |
965 | case RDIError_BigEndian: | |
966 | case RDIError_SoftInitialiseError: | |
967 | case RDIError_InsufficientPrivilege: | |
968 | case RDIError_UnimplementedMessage: | |
969 | case RDIError_UndefinedMessage: | |
970 | default: | |
c5aa993b | 971 | return TARGET_SIGNAL_UNKNOWN; |
c906108c SS |
972 | } |
973 | } | |
974 | \f | |
975 | /* Define the target operations structure. */ | |
976 | ||
977 | static void | |
978 | init_rdi_ops () | |
979 | { | |
c5aa993b | 980 | arm_rdi_ops.to_shortname = "rdi"; |
c906108c SS |
981 | arm_rdi_ops.to_longname = "ARM RDI"; |
982 | arm_rdi_ops.to_doc = "Use a remote ARM-based computer; via the RDI library.\n\ | |
c5aa993b JM |
983 | Specify the serial device it is connected to (e.g. /dev/ttya)."; |
984 | arm_rdi_ops.to_open = arm_rdi_open; | |
985 | arm_rdi_ops.to_close = arm_rdi_close; | |
986 | arm_rdi_ops.to_detach = arm_rdi_detach; | |
987 | arm_rdi_ops.to_resume = arm_rdi_resume; | |
988 | arm_rdi_ops.to_wait = arm_rdi_wait; | |
c906108c SS |
989 | arm_rdi_ops.to_fetch_registers = arm_rdi_fetch_registers; |
990 | arm_rdi_ops.to_store_registers = arm_rdi_store_registers; | |
991 | arm_rdi_ops.to_prepare_to_store = arm_rdi_prepare_to_store; | |
992 | arm_rdi_ops.to_xfer_memory = arm_rdi_xfer_memory; | |
993 | arm_rdi_ops.to_files_info = arm_rdi_files_info; | |
994 | arm_rdi_ops.to_insert_breakpoint = arm_rdi_insert_breakpoint; | |
c5aa993b JM |
995 | arm_rdi_ops.to_remove_breakpoint = arm_rdi_remove_breakpoint; |
996 | arm_rdi_ops.to_kill = arm_rdi_kill; | |
997 | arm_rdi_ops.to_load = generic_load; | |
c906108c SS |
998 | arm_rdi_ops.to_create_inferior = arm_rdi_create_inferior; |
999 | arm_rdi_ops.to_mourn_inferior = arm_rdi_mourn_inferior; | |
1000 | arm_rdi_ops.to_stratum = process_stratum; | |
c5aa993b JM |
1001 | arm_rdi_ops.to_has_all_memory = 1; |
1002 | arm_rdi_ops.to_has_memory = 1; | |
1003 | arm_rdi_ops.to_has_stack = 1; | |
1004 | arm_rdi_ops.to_has_registers = 1; | |
1005 | arm_rdi_ops.to_has_execution = 1; | |
1006 | arm_rdi_ops.to_magic = OPS_MAGIC; | |
c906108c SS |
1007 | } |
1008 | ||
4ce44c66 JM |
1009 | static void |
1010 | rdilogfile_command (char *arg, int from_tty) | |
5c44784c JM |
1011 | { |
1012 | if (!arg || strlen (arg) == 0) | |
1013 | { | |
1014 | printf_filtered ("rdi log file is '%s'\n", log_filename); | |
1015 | return; | |
1016 | } | |
4ce44c66 | 1017 | |
5c44784c JM |
1018 | if (log_filename) |
1019 | free (log_filename); | |
4ce44c66 | 1020 | |
c2d11a7d | 1021 | log_filename = xstrdup (arg); |
5c44784c JM |
1022 | |
1023 | Adp_SetLogfile (log_filename); | |
1024 | } | |
1025 | ||
4ce44c66 JM |
1026 | static void |
1027 | rdilogenable_command (char *args, int from_tty) | |
5c44784c JM |
1028 | { |
1029 | if (!args || strlen (args) == 0) | |
1030 | { | |
1031 | printf_filtered ("rdi log is %s\n", log_enable ? "enabled" : "disabled"); | |
1032 | return; | |
1033 | } | |
4ce44c66 JM |
1034 | |
1035 | if (!strcasecmp (args, "1") || | |
1036 | !strcasecmp (args, "y") || | |
1037 | !strcasecmp (args, "yes") || | |
1038 | !strcasecmp (args, "on") || | |
1039 | !strcasecmp (args, "t") || | |
1040 | !strcasecmp (args, "true")) | |
1041 | Adp_SetLogEnable (log_enable = 1); | |
1042 | else if (!strcasecmp (args, "0") || | |
1043 | !strcasecmp (args, "n") || | |
1044 | !strcasecmp (args, "no") || | |
1045 | !strcasecmp (args, "off") || | |
1046 | !strcasecmp (args, "f") || | |
1047 | !strcasecmp (args, "false")) | |
1048 | Adp_SetLogEnable (log_enable = 0); | |
5c44784c JM |
1049 | else |
1050 | printf_filtered ("rdilogenable: unrecognized argument '%s'\n" | |
4ce44c66 | 1051 | " try y or n\n", args); |
5c44784c JM |
1052 | } |
1053 | ||
c906108c SS |
1054 | void |
1055 | _initialize_remote_rdi () | |
1056 | { | |
c5aa993b | 1057 | init_rdi_ops (); |
c906108c | 1058 | add_target (&arm_rdi_ops); |
5c44784c | 1059 | |
c2d11a7d | 1060 | log_filename = xstrdup ("rdi.log"); |
4ce44c66 JM |
1061 | Adp_SetLogfile (log_filename); |
1062 | Adp_SetLogEnable (log_enable); | |
5c44784c JM |
1063 | |
1064 | add_cmd ("rdilogfile", class_maintenance, | |
1065 | rdilogfile_command, | |
1066 | "Set filename for ADP packet log.\n\ | |
1067 | This file is used to log Angel Debugger Protocol packets.\n\ | |
1068 | With a single argument, sets the logfile name to that value.\n\ | |
1069 | Without an argument, shows the current logfile name.\n\ | |
1070 | See also: rdilogenable\n", | |
1071 | &maintenancelist); | |
1072 | ||
4ce44c66 | 1073 | add_cmd ("rdilogenable", class_maintenance, |
5c44784c JM |
1074 | rdilogenable_command, |
1075 | "Set enable logging of ADP packets.\n\ | |
1076 | This will log ADP packets exchanged between gdb and the\n\ | |
1077 | rdi target device.\n\ | |
1078 | An argument of 1,t,true,y,yes will enable.\n\ | |
1079 | An argument of 0,f,false,n,no will disabled.\n\ | |
1080 | Withough an argument, it will display current state.\n", | |
1081 | &maintenancelist); | |
1082 | ||
1083 | add_show_from_set | |
1084 | (add_set_cmd ("rdiromatzero", no_class, | |
1085 | var_boolean, (char *) &rom_at_zero, | |
1086 | "Set target has ROM at addr 0.\n\ | |
1087 | A true value disables vector catching, false enables vector catching.\n\ | |
1088 | This is evaluated at the time the 'target rdi' command is executed\n", | |
1089 | &setlist), | |
4ce44c66 | 1090 | &showlist); |
5c44784c JM |
1091 | |
1092 | add_show_from_set | |
1093 | (add_set_cmd ("rdiheartbeat", no_class, | |
1094 | var_boolean, (char *) &rdi_heartbeat, | |
1095 | "Set enable for ADP heartbeat packets.\n\ | |
1096 | I don't know why you would want this. If you enable them,\n\ | |
1097 | it will confuse ARM and EPI JTAG interface boxes as well\n\ | |
1098 | as the Angel Monitor.\n", | |
1099 | &setlist), | |
4ce44c66 | 1100 | &showlist); |
c906108c SS |
1101 | } |
1102 | ||
1103 | /* A little dummy to make linking with the library succeed. */ | |
1104 | ||
c5aa993b JM |
1105 | int |
1106 | Fail () | |
1107 | { | |
1108 | return 0; | |
1109 | } |