Commit | Line | Data |
---|---|---|
3a9c3d12 NC |
1 | /* GDB interface to ARM RDI library. |
2 | Copyright 1997 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of GDB. | |
5 | ||
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. | |
10 | ||
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. | |
15 | ||
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, Boston, MA 02111-1307, USA. */ | |
19 | ||
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 | /* Prototypes for local functions */ | |
47 | ||
48 | static void arm_rdi_files_info PARAMS ((struct target_ops *ignore)); | |
49 | ||
50 | static int arm_rdi_xfer_memory PARAMS ((CORE_ADDR memaddr, char *myaddr, | |
51 | int len, int should_write, | |
52 | struct target_ops *target)); | |
53 | ||
54 | static void arm_rdi_prepare_to_store PARAMS ((void)); | |
55 | ||
56 | static void arm_rdi_fetch_registers PARAMS ((int regno)); | |
57 | ||
58 | static void arm_rdi_resume PARAMS ((int pid, int step, | |
59 | enum target_signal siggnal)); | |
60 | ||
61 | static int arm_rdi_start_remote PARAMS ((char *dummy)); | |
62 | ||
63 | static void arm_rdi_open PARAMS ((char *name, int from_tty)); | |
64 | ||
65 | static void arm_rdi_create_inferior PARAMS ((char *exec_file, char *args, | |
66 | char **env)); | |
67 | ||
68 | static void arm_rdi_close PARAMS ((int quitting)); | |
69 | ||
70 | static void arm_rdi_store_registers PARAMS ((int regno)); | |
71 | ||
72 | static void arm_rdi_mourn PARAMS ((void)); | |
73 | ||
74 | static void arm_rdi_send PARAMS ((char *buf)); | |
75 | ||
76 | static int arm_rdi_wait PARAMS ((int pid, struct target_waitstatus *status)); | |
77 | ||
78 | static void arm_rdi_kill PARAMS ((void)); | |
79 | ||
80 | static void arm_rdi_detach PARAMS ((char *args, int from_tty)); | |
81 | ||
82 | static void arm_rdi_interrupt PARAMS ((int signo)); | |
83 | ||
84 | static void arm_rdi_interrupt_twice PARAMS ((int signo)); | |
85 | ||
86 | static void interrupt_query PARAMS ((void)); | |
87 | ||
88 | static int arm_rdi_insert_breakpoint PARAMS ((CORE_ADDR, char *)); | |
89 | ||
90 | static int arm_rdi_remove_breakpoint PARAMS ((CORE_ADDR, char *)); | |
91 | ||
92 | static char *rdi_error_message PARAMS ((int err)); | |
93 | ||
94 | static enum target_signal rdi_error_signal PARAMS ((int err)); | |
95 | ||
96 | extern struct target_ops arm_rdi_ops; /* Forward decl */ | |
97 | ||
98 | static struct Dbg_ConfigBlock gdb_config; | |
99 | ||
100 | static struct Dbg_HostosInterface gdb_hostif; | |
101 | ||
102 | static int max_load_size; | |
103 | ||
104 | static int execute_status; | |
105 | ||
106 | /* A little list of breakpoints that have been set. */ | |
107 | ||
108 | static struct local_bp_list_entry { | |
109 | CORE_ADDR addr; | |
110 | PointHandle point; | |
111 | struct local_bp_list_entry *next; | |
112 | } *local_bp_list; | |
113 | ||
114 | \f | |
115 | /* Stub for catch_errors. */ | |
116 | ||
117 | static int | |
118 | arm_rdi_start_remote (dummy) | |
119 | char *dummy; | |
120 | { | |
121 | return 1; | |
122 | } | |
123 | ||
124 | /* Helper callbacks for the "host interface" structure. RDI functions call | |
125 | these to forward output from the target system and so forth. */ | |
126 | ||
127 | void | |
128 | voiddummy() | |
129 | { | |
130 | printf("void dummy\n"); | |
131 | } | |
132 | ||
133 | static void | |
134 | myprint (arg, format, ap) | |
135 | PTR arg; | |
136 | const char *format; | |
137 | va_list ap; | |
138 | { | |
139 | vfprintf (stdout, format, ap); | |
140 | } | |
141 | ||
142 | static void | |
143 | mywritec (arg, c) | |
144 | PTR arg; | |
145 | int c; | |
146 | { | |
147 | fputc (c, (FILE *) arg); | |
148 | } | |
149 | ||
150 | static int | |
151 | mywrite (arg, buffer, len) | |
152 | PTR arg; | |
153 | char const *buffer; | |
154 | int len; | |
155 | { | |
156 | return fwrite (buffer, 1, len, stdout); | |
157 | } | |
158 | ||
159 | static void | |
160 | mypause (arg) | |
161 | PTR arg; | |
162 | { | |
163 | } | |
164 | ||
165 | /* These last two are tricky as we have to handle the special case of | |
166 | being interrupted more carefully */ | |
167 | ||
168 | static int | |
169 | myreadc (arg) | |
170 | PTR arg; | |
171 | { | |
172 | return fgetc (stdin); | |
173 | } | |
174 | ||
175 | static char * | |
176 | mygets (arg, buffer, len) | |
177 | PTR arg; | |
178 | char *buffer; | |
179 | int len; | |
180 | { | |
181 | return fgets(buffer, len, stdin); | |
182 | } | |
183 | ||
9d561e1e NC |
184 | /* Prevent multiple calls to angel_RDI_close(). */ |
185 | static int closed_already = 1; | |
186 | ||
3a9c3d12 NC |
187 | /* Open a connection to a remote debugger. NAME is the filename used |
188 | for communication. */ | |
189 | ||
190 | static void | |
191 | arm_rdi_open (name, from_tty) | |
192 | char *name; | |
193 | int from_tty; | |
194 | { | |
195 | int rslt, i; | |
196 | unsigned long arg1, arg2; | |
197 | ||
198 | if (name == NULL) | |
199 | error ("To open an RDI connection, you need to specify what serial\n\ | |
200 | device is attached to the remote system (e.g. /dev/ttya)."); | |
201 | ||
202 | /* Make the basic low-level connection. */ | |
203 | ||
d9c02b1e | 204 | rslt = Adp_OpenDevice (name, NULL, 1); |
3a9c3d12 NC |
205 | |
206 | if (rslt != adp_ok) | |
d9c02b1e | 207 | error ("Could not open device \"%s\"", name); |
3a9c3d12 NC |
208 | |
209 | gdb_config.bytesex = 2 | (target_byte_order == BIG_ENDIAN ? 1 : 0); | |
210 | gdb_config.fpe = 1; | |
211 | gdb_config.rditype = 2; | |
212 | gdb_config.heartbeat_on = 1; | |
213 | gdb_config.flags = 2; | |
214 | ||
215 | gdb_hostif.dbgprint = myprint; | |
216 | gdb_hostif.dbgpause = mypause; | |
217 | gdb_hostif.dbgarg = stdout; | |
218 | gdb_hostif.writec = mywritec; | |
219 | gdb_hostif.readc = myreadc; | |
220 | gdb_hostif.write = mywrite; | |
221 | gdb_hostif.gets = mygets; | |
222 | gdb_hostif.hostosarg = stdout; | |
223 | gdb_hostif.reset = voiddummy; | |
224 | ||
225 | rslt = angel_RDI_open (10, &gdb_config, &gdb_hostif, NULL); | |
226 | if (rslt == RDIError_BigEndian || rslt == RDIError_LittleEndian) | |
227 | ; /* do nothing, this is the expected return */ | |
228 | else if (rslt) | |
229 | { | |
230 | printf_filtered ("RDI_open: %s\n", rdi_error_message (rslt)); | |
231 | } | |
232 | ||
233 | rslt = angel_RDI_info (RDIInfo_Target, &arg1, &arg2); | |
234 | if (rslt) | |
235 | { | |
236 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
237 | } | |
238 | rslt = angel_RDI_info (RDIInfo_Points, &arg1, &arg2); | |
239 | if (rslt) | |
240 | { | |
241 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
242 | } | |
243 | rslt = angel_RDI_info (RDIInfo_Step, &arg1, &arg2); | |
244 | if (rslt) | |
245 | { | |
246 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
247 | } | |
248 | rslt = angel_RDI_info (RDIInfo_CoPro, &arg1, &arg2); | |
249 | if (rslt) | |
250 | { | |
251 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
252 | } | |
253 | rslt = angel_RDI_info (RDIInfo_SemiHosting, &arg1, &arg2); | |
254 | if (rslt) | |
255 | { | |
256 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
257 | } | |
ed3e2cfe NC |
258 | |
259 | /* | |
260 | ** There's no point asking if the target's an ICEBreaker, unless | |
261 | ** you're going to do something with the answer. All it does is provoke | |
262 | ** an error message on non-ICE targets | |
263 | rslt = angel_RDI_info (RDIInfo_Icebreaker, & arg1, & arg2); | |
3a9c3d12 NC |
264 | if (rslt) |
265 | { | |
266 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
267 | } | |
ed3e2cfe NC |
268 | */ |
269 | ||
270 | /* | |
271 | ** There's no point asking if the target can accept a configuration download, | |
272 | ** unless you're going to do something with the answer. All it does is | |
273 | ** provoke an error message on non-ICE targets | |
274 | rslt = angel_RDI_info (RDIInfo_DownLoad, & arg1, & arg2); | |
3a9c3d12 NC |
275 | if (rslt) |
276 | { | |
277 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
278 | } | |
ed3e2cfe NC |
279 | */ |
280 | ||
3a9c3d12 NC |
281 | rslt = angel_RDI_info (RDIInfo_GetLoadSize, &arg1, &arg2); |
282 | if (rslt) | |
283 | { | |
284 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
285 | } | |
286 | max_load_size = arg1; | |
287 | ||
288 | push_target (&arm_rdi_ops); | |
289 | ||
290 | target_fetch_registers (-1); | |
291 | ||
292 | rslt = angel_RDI_open (1, &gdb_config, NULL, NULL); | |
293 | if (rslt) | |
294 | { | |
295 | printf_filtered ("RDI_open: %s\n", rdi_error_message (rslt)); | |
296 | } | |
297 | ||
298 | arg1 = 0x13b; | |
299 | rslt = angel_RDI_info (RDIVector_Catch, &arg1, &arg2); | |
300 | if (rslt) | |
301 | { | |
302 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
303 | } | |
304 | ||
305 | arg1 = (unsigned long) ""; | |
306 | rslt = angel_RDI_info (RDISet_Cmdline, &arg1, &arg2); | |
307 | if (rslt) | |
308 | { | |
309 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
310 | } | |
311 | ||
312 | /* Clear out any existing records of breakpoints. */ | |
313 | { | |
314 | struct local_bp_list_entry *entry, *preventry = NULL; | |
315 | ||
316 | for (entry = local_bp_list; entry != NULL; entry = entry->next) | |
317 | { | |
318 | if (preventry) | |
319 | free (preventry); | |
320 | } | |
321 | } | |
322 | ||
323 | printf_filtered ("Connected to ARM RDI target.\n"); | |
9d561e1e NC |
324 | |
325 | closed_already = 0; | |
3a9c3d12 NC |
326 | } |
327 | ||
328 | /* Start an inferior process and set inferior_pid to its pid. | |
329 | EXEC_FILE is the file to run. | |
330 | ARGS is a string containing the arguments to the program. | |
331 | ENV is the environment vector to pass. Errors reported with error(). | |
332 | On VxWorks and various standalone systems, we ignore exec_file. */ | |
333 | /* This is called not only when we first attach, but also when the | |
334 | user types "run" after having attached. */ | |
335 | ||
336 | static void | |
337 | arm_rdi_create_inferior (exec_file, args, env) | |
338 | char *exec_file; | |
339 | char *args; | |
340 | char **env; | |
341 | { | |
342 | int len, rslt; | |
343 | unsigned long arg1, arg2; | |
344 | char *arg_buf; | |
345 | CORE_ADDR entry_point; | |
346 | ||
347 | if (exec_file == 0 || exec_bfd == 0) | |
348 | error ("No exec file specified."); | |
349 | ||
350 | entry_point = (CORE_ADDR) bfd_get_start_address (exec_bfd); | |
351 | ||
352 | arm_rdi_kill (); | |
353 | remove_breakpoints (); | |
354 | init_wait_for_inferior (); | |
355 | ||
356 | len = strlen (exec_file) + 1 + strlen (args) + 1 + /*slop*/ 10; | |
357 | arg_buf = (char *) alloca (len); | |
358 | arg_buf[0] = '\0'; | |
359 | strcat (arg_buf, exec_file); | |
360 | strcat (arg_buf, " "); | |
361 | strcat (arg_buf, args); | |
362 | ||
363 | inferior_pid = 42; | |
364 | insert_breakpoints (); /* Needed to get correct instruction in cache */ | |
365 | ||
366 | if ( env != NULL) | |
367 | { | |
368 | while (*env) | |
369 | { | |
370 | if (strncmp(*env, "MEMSIZE=", sizeof("MEMSIZE=")-1)==0) | |
371 | { | |
372 | unsigned long top_of_memory; | |
373 | char *end_of_num; | |
374 | ||
375 | /* Set up memory limit */ | |
376 | top_of_memory = strtoul(*env + sizeof("MEMSIZE=")-1, | |
377 | &end_of_num, 0); | |
378 | printf_filtered ("Setting top-of-memory to 0x%x\n", | |
379 | top_of_memory); | |
380 | ||
381 | rslt=angel_RDI_info (RDIInfo_SetTopMem, &top_of_memory, &arg2); | |
382 | if (rslt) | |
383 | { | |
384 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
385 | } | |
386 | } | |
387 | env++; | |
388 | } | |
389 | } | |
390 | ||
391 | arg1 = (unsigned long) arg_buf; | |
392 | rslt = angel_RDI_info (RDISet_Cmdline, /* &arg1 */ (unsigned long *)arg_buf, &arg2); | |
393 | if (rslt) | |
394 | { | |
395 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
396 | } | |
397 | ||
398 | proceed (entry_point, TARGET_SIGNAL_DEFAULT, 0); | |
399 | } | |
400 | ||
401 | /* This takes a program previously attached to and detaches it. After | |
402 | this is done, GDB can be used to debug some other program. We | |
403 | better not have left any breakpoints in the target program or it'll | |
404 | die when it hits one. */ | |
405 | ||
406 | static void | |
407 | arm_rdi_detach (args, from_tty) | |
408 | char *args; | |
409 | int from_tty; | |
410 | { | |
411 | /* (anything to do?) */ | |
412 | } | |
413 | ||
414 | /* Clean up connection to a remote debugger. */ | |
415 | ||
416 | static void | |
417 | arm_rdi_close (quitting) | |
418 | int quitting; | |
419 | { | |
420 | int rslt; | |
421 | ||
9d561e1e | 422 | if (! closed_already) |
3a9c3d12 | 423 | { |
9d561e1e NC |
424 | rslt = angel_RDI_close (); |
425 | if (rslt) | |
426 | { | |
427 | printf_filtered ("RDI_close: %s\n", rdi_error_message (rslt)); | |
428 | } | |
429 | closed_already = 1; | |
3a9c3d12 NC |
430 | } |
431 | } | |
432 | \f | |
433 | /* Tell the remote machine to resume. */ | |
434 | ||
435 | static void | |
436 | arm_rdi_resume (pid, step, siggnal) | |
437 | int pid, step; | |
438 | enum target_signal siggnal; | |
439 | { | |
440 | int rslt; | |
441 | PointHandle point; | |
442 | ||
443 | if (0 /* turn on when hardware supports single-stepping */) | |
444 | { | |
445 | rslt = angel_RDI_step (1, &point); | |
446 | if (rslt) | |
447 | { | |
448 | printf_filtered ("RDI_step: %s\n", rdi_error_message (rslt)); | |
449 | } | |
450 | } | |
451 | else | |
452 | { | |
453 | char handle[4]; | |
454 | CORE_ADDR pc; | |
455 | ||
456 | if (step) | |
457 | { | |
458 | pc = read_register (PC_REGNUM); | |
459 | pc = arm_get_next_pc (pc); | |
460 | arm_rdi_insert_breakpoint (pc, handle); | |
461 | } | |
462 | execute_status = rslt = angel_RDI_execute (&point); | |
463 | if (rslt == RDIError_BreakpointReached) | |
464 | ; | |
465 | else if (rslt) | |
466 | { | |
467 | printf_filtered ("RDI_execute: %s\n", rdi_error_message (rslt)); | |
468 | } | |
469 | if (step) | |
470 | { | |
471 | arm_rdi_remove_breakpoint (pc, handle); | |
472 | } | |
473 | } | |
474 | } | |
475 | \f | |
476 | /* Send ^C to target to halt it. Target will respond, and send us a | |
477 | packet. */ | |
478 | ||
479 | static void | |
480 | arm_rdi_interrupt (signo) | |
481 | int signo; | |
482 | { | |
483 | } | |
484 | ||
485 | static void (*ofunc)(); | |
486 | ||
487 | /* The user typed ^C twice. */ | |
488 | static void | |
489 | arm_rdi_interrupt_twice (signo) | |
490 | int signo; | |
491 | { | |
492 | } | |
493 | ||
494 | /* Ask the user what to do when an interrupt is received. */ | |
495 | ||
496 | static void | |
497 | interrupt_query () | |
498 | { | |
499 | } | |
500 | ||
501 | /* Wait until the remote machine stops, then return, storing status in | |
502 | STATUS just as `wait' would. Returns "pid" (though it's not clear | |
503 | what, if anything, that means in the case of this target). */ | |
504 | ||
505 | static int | |
506 | arm_rdi_wait (pid, status) | |
507 | int pid; | |
508 | struct target_waitstatus *status; | |
509 | { | |
510 | status->kind = execute_status == RDIError_NoError ? | |
511 | TARGET_WAITKIND_EXITED : TARGET_WAITKIND_STOPPED; | |
512 | ||
513 | /* convert stopped code from target into right signal */ | |
514 | status->value.sig = rdi_error_signal ( execute_status ); | |
515 | ||
516 | return inferior_pid; | |
517 | } | |
518 | ||
519 | /* Read the remote registers into the block REGS. */ | |
520 | ||
521 | /* ARGSUSED */ | |
522 | static void | |
523 | arm_rdi_fetch_registers (regno) | |
524 | int regno; | |
525 | { | |
526 | int rslt, rdi_regmask; | |
527 | unsigned long rawreg, rawregs[32]; | |
528 | char cookedreg[4]; | |
529 | ||
530 | if (regno == -1) | |
531 | { | |
532 | rslt = angel_RDI_CPUread (255, 0x27fff, rawregs); | |
533 | if (rslt) | |
534 | { | |
535 | printf_filtered ("RDI_CPUread: %s\n", rdi_error_message (rslt)); | |
536 | } | |
537 | ||
538 | for (regno = 0; regno < 15; regno++) | |
539 | { | |
540 | store_unsigned_integer (cookedreg, 4, rawregs[regno]); | |
541 | supply_register (regno, (char *) cookedreg); | |
542 | } | |
543 | store_unsigned_integer (cookedreg, 4, rawregs[15]); | |
544 | supply_register (PS_REGNUM, (char *) cookedreg); | |
545 | arm_rdi_fetch_registers (PC_REGNUM); | |
546 | } | |
547 | else | |
548 | { | |
549 | if (regno == PC_REGNUM) | |
550 | rdi_regmask = RDIReg_PC; | |
551 | else if (regno == PS_REGNUM) | |
552 | rdi_regmask = RDIReg_CPSR; | |
553 | else if (regno < 0 || regno > 15) | |
554 | { | |
555 | rawreg = 0; | |
556 | supply_register (regno, (char *) &rawreg); | |
557 | return; | |
558 | } | |
559 | else | |
560 | rdi_regmask = 1 << regno; | |
561 | ||
562 | rslt = angel_RDI_CPUread (255, rdi_regmask, &rawreg); | |
563 | if (rslt) | |
564 | { | |
565 | printf_filtered ("RDI_CPUread: %s\n", rdi_error_message (rslt)); | |
566 | } | |
567 | store_unsigned_integer (cookedreg, 4, rawreg); | |
568 | supply_register (regno, (char *) cookedreg); | |
569 | } | |
570 | } | |
571 | ||
572 | static void | |
573 | arm_rdi_prepare_to_store () | |
574 | { | |
575 | /* Nothing to do. */ | |
576 | } | |
577 | ||
578 | /* Store register REGNO, or all registers if REGNO == -1, from the contents | |
579 | of REGISTERS. FIXME: ignores errors. */ | |
580 | ||
581 | static void | |
582 | arm_rdi_store_registers (regno) | |
583 | int regno; | |
584 | { | |
585 | int rslt, rdi_regmask; | |
586 | ||
587 | /* These need to be able to take 'floating point register' contents */ | |
588 | unsigned long rawreg[3], rawerreg[3]; | |
589 | ||
590 | if (regno == -1) | |
591 | { | |
592 | for (regno = 0; regno < NUM_REGS; regno++) | |
593 | arm_rdi_store_registers (regno); | |
594 | } | |
595 | else | |
596 | { | |
597 | read_register_gen (regno, (char *) rawreg); | |
598 | /* RDI manipulates data in host byte order, so convert now. */ | |
599 | store_unsigned_integer (rawerreg, 4, rawreg[0]); | |
600 | ||
601 | if (regno == PC_REGNUM) | |
602 | rdi_regmask = RDIReg_PC; | |
603 | else if (regno == PS_REGNUM) | |
604 | rdi_regmask = RDIReg_CPSR; | |
605 | else if (regno < 0 || regno > 15) | |
606 | return; | |
607 | else | |
608 | rdi_regmask = 1 << regno; | |
609 | ||
610 | rslt = angel_RDI_CPUwrite (255, rdi_regmask, rawerreg); | |
611 | if (rslt) | |
612 | { | |
613 | printf_filtered ("RDI_CPUwrite: %s\n", rdi_error_message (rslt)); | |
614 | } | |
615 | } | |
616 | } | |
617 | \f | |
618 | /* Read or write LEN bytes from inferior memory at MEMADDR, | |
619 | transferring to or from debugger address MYADDR. Write to inferior | |
620 | if SHOULD_WRITE is nonzero. Returns length of data written or | |
621 | read; 0 for error. */ | |
622 | ||
623 | /* ARGSUSED */ | |
624 | static int | |
625 | arm_rdi_xfer_memory(memaddr, myaddr, len, should_write, target) | |
626 | CORE_ADDR memaddr; | |
627 | char *myaddr; | |
628 | int len; | |
629 | int should_write; | |
630 | struct target_ops *target; /* ignored */ | |
631 | { | |
632 | int rslt, i; | |
633 | ||
634 | if (should_write) | |
635 | { | |
636 | rslt = angel_RDI_write (myaddr, memaddr, &len); | |
637 | if (rslt) | |
638 | { | |
639 | printf_filtered ("RDI_write: %s\n", rdi_error_message (rslt)); | |
640 | } | |
641 | } | |
642 | else | |
643 | { | |
644 | rslt = angel_RDI_read (memaddr, myaddr, &len); | |
645 | if (rslt) | |
646 | { | |
647 | printf_filtered ("RDI_read: %s\n", rdi_error_message (rslt)); | |
648 | len = 0; | |
649 | } | |
650 | } | |
651 | return len; | |
652 | } | |
653 | \f | |
654 | /* Display random info collected from the target. */ | |
655 | ||
656 | static void | |
657 | arm_rdi_files_info (ignore) | |
658 | struct target_ops *ignore; | |
659 | { | |
660 | char *file = "nothing"; | |
661 | int rslt; | |
662 | unsigned long arg1, arg2; | |
663 | ||
664 | rslt = angel_RDI_info (RDIInfo_Target, &arg1, &arg2); | |
665 | if (rslt) | |
666 | { | |
667 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
668 | } | |
669 | if (arg1 & (1 << 15)) | |
670 | printf_filtered ("Target supports Thumb code.\n"); | |
671 | if (arg1 & (1 << 14)) | |
672 | printf_filtered ("Target can do profiling.\n"); | |
673 | if (arg1 & (1 << 4)) | |
674 | printf_filtered ("Target is real hardware.\n"); | |
675 | ||
676 | rslt = angel_RDI_info (RDIInfo_Step, &arg1, &arg2); | |
677 | if (rslt) | |
678 | { | |
679 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
680 | } | |
681 | printf_filtered ("Target can%s single-step.\n", (arg1 & 0x4 ? "" : "not")); | |
682 | ||
683 | rslt = angel_RDI_info (RDIInfo_Icebreaker, &arg1, &arg2); | |
684 | if (rslt) | |
685 | { | |
686 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
687 | } | |
688 | else | |
689 | printf_filtered ("Target includes an EmbeddedICE.\n"); | |
690 | } | |
691 | \f | |
692 | static void | |
693 | arm_rdi_kill () | |
694 | { | |
695 | int rslt; | |
696 | ||
697 | rslt = angel_RDI_open (1, &gdb_config, NULL, NULL); | |
698 | if (rslt) | |
699 | { | |
700 | printf_filtered ("RDI_open: %s\n", rdi_error_message (rslt)); | |
701 | } | |
702 | } | |
703 | ||
704 | static void | |
705 | arm_rdi_mourn_inferior () | |
706 | { | |
707 | unpush_target (&arm_rdi_ops); | |
708 | generic_mourn_inferior (); | |
709 | } | |
710 | \f | |
711 | /* While the RDI library keeps track of its own breakpoints, we need | |
712 | to remember "handles" so that we can delete them later. Since | |
713 | breakpoints get used for stepping, be careful not to leak memory | |
714 | here. */ | |
715 | ||
716 | static int | |
717 | arm_rdi_insert_breakpoint (addr, contents_cache) | |
718 | CORE_ADDR addr; | |
719 | char *contents_cache; | |
720 | { | |
721 | int rslt; | |
722 | PointHandle point; | |
723 | struct local_bp_list_entry *entry; | |
724 | int type = RDIPoint_EQ; | |
725 | ||
726 | if (arm_pc_is_thumb (addr) || arm_pc_is_thumb_dummy (addr)) | |
727 | type |= RDIPoint_16Bit; | |
728 | rslt = angel_RDI_setbreak (addr, type, 0, &point); | |
729 | if (rslt) | |
730 | { | |
731 | printf_filtered ("RDI_setbreak: %s\n", rdi_error_message (rslt)); | |
732 | } | |
733 | entry = | |
734 | (struct local_bp_list_entry *) xmalloc (sizeof (struct local_bp_list_entry)); | |
735 | entry->addr = addr; | |
736 | entry->point = point; | |
737 | entry->next = local_bp_list; | |
738 | local_bp_list = entry; | |
739 | return rslt; | |
740 | } | |
741 | ||
742 | static int | |
743 | arm_rdi_remove_breakpoint (addr, contents_cache) | |
744 | CORE_ADDR addr; | |
745 | char *contents_cache; | |
746 | { | |
747 | int rslt; | |
748 | PointHandle point; | |
749 | struct local_bp_list_entry *entry, *preventry; | |
750 | ||
751 | for (entry = local_bp_list; entry != NULL; entry = entry->next) | |
752 | { | |
753 | if (entry->addr == addr) | |
754 | { | |
755 | break; | |
756 | } | |
757 | preventry = entry; | |
758 | } | |
759 | if (entry) | |
760 | { | |
761 | rslt = angel_RDI_clearbreak (entry->point); | |
762 | if (rslt) | |
763 | { | |
764 | printf_filtered ("RDI_clearbreak: %s\n", rdi_error_message (rslt)); | |
765 | } | |
766 | /* Delete the breakpoint entry locally. */ | |
767 | if (entry == local_bp_list) | |
768 | { | |
769 | local_bp_list = entry->next; | |
770 | } | |
771 | else | |
772 | { | |
773 | preventry->next = entry->next; | |
774 | } | |
775 | free (entry); | |
776 | } | |
777 | return 0; | |
778 | } | |
779 | \f | |
780 | static char * | |
781 | rdi_error_message (err) | |
782 | int err; | |
783 | { | |
784 | switch (err) | |
785 | { | |
786 | case RDIError_NoError: | |
787 | return "no error"; | |
788 | case RDIError_Reset: | |
789 | return "debuggee reset"; | |
790 | case RDIError_UndefinedInstruction: | |
791 | return "undefined instruction"; | |
792 | case RDIError_SoftwareInterrupt: | |
793 | return "SWI trapped"; | |
794 | case RDIError_PrefetchAbort: | |
795 | return "prefetch abort, execution ran into unmapped memory?"; | |
796 | case RDIError_DataAbort: | |
797 | return "data abort, no memory at specified address?"; | |
798 | case RDIError_AddressException: | |
799 | return "address exception, access >26bit in 26bit mode"; | |
800 | case RDIError_IRQ: | |
801 | return "IRQ, interrupt trapped"; | |
802 | case RDIError_FIQ: | |
803 | return "FIQ, fast interrupt trapped"; | |
804 | case RDIError_Error: | |
805 | return "a miscellaneous type of error"; | |
806 | case RDIError_BranchThrough0: | |
807 | return "branch through location 0"; | |
808 | case RDIError_NotInitialised: | |
809 | return "internal error, RDI_open not called first"; | |
810 | case RDIError_UnableToInitialise: | |
811 | return "internal error, target world is broken"; | |
812 | case RDIError_WrongByteSex: | |
813 | return "See Operator: WrongByteSex"; | |
814 | case RDIError_UnableToTerminate: | |
815 | return "See Operator: Unable to Terminate"; | |
816 | case RDIError_BadInstruction: | |
817 | return "bad instruction, illegal to execute this instruction"; | |
818 | case RDIError_IllegalInstruction: | |
819 | return "illegal instruction, the effect of executing it is undefined"; | |
820 | case RDIError_BadCPUStateSetting: | |
821 | return "internal error, tried to set SPSR of user mode"; | |
822 | case RDIError_UnknownCoPro: | |
823 | return "unknown co-processor"; | |
824 | case RDIError_UnknownCoProState: | |
825 | return "cannot execute co-processor request"; | |
826 | case RDIError_BadCoProState: | |
827 | return "recognizably broken co-processor request"; | |
828 | case RDIError_BadPointType: | |
829 | return "internal error, bad point yype"; | |
830 | case RDIError_UnimplementedType: | |
831 | return "internal error, unimplemented type"; | |
832 | case RDIError_BadPointSize: | |
833 | return "internal error, bad point size"; | |
834 | case RDIError_UnimplementedSize: | |
835 | return "internal error, unimplemented size"; | |
836 | case RDIError_NoMorePoints: | |
837 | return "last break/watch point was used"; | |
838 | case RDIError_BreakpointReached: | |
839 | return "breakpoint reached"; | |
840 | case RDIError_WatchpointAccessed: | |
841 | return "watchpoint accessed"; | |
842 | case RDIError_NoSuchPoint: | |
843 | return "attempted to clear non-existent break/watch point"; | |
844 | case RDIError_ProgramFinishedInStep: | |
845 | return "end of the program reached while stepping"; | |
846 | case RDIError_UserInterrupt: | |
847 | return "you pressed Escape"; | |
848 | case RDIError_CantSetPoint: | |
849 | return "no more break/watch points available"; | |
850 | case RDIError_IncompatibleRDILevels: | |
851 | return "incompatible RDI levels"; | |
852 | case RDIError_LittleEndian: | |
853 | return "debuggee is little endian"; | |
854 | case RDIError_BigEndian: | |
855 | return "debuggee is big endian"; | |
856 | case RDIError_SoftInitialiseError: | |
857 | return "recoverable error in RDI initialization"; | |
858 | case RDIError_InsufficientPrivilege: | |
859 | return "internal error, supervisor state not accessible to monitor"; | |
860 | case RDIError_UnimplementedMessage: | |
861 | return "internal error, unimplemented message"; | |
862 | case RDIError_UndefinedMessage: | |
863 | return "internal error, undefined message"; | |
864 | default: | |
865 | return "undefined error message, should reset target"; | |
866 | } | |
867 | } | |
868 | ||
869 | /* Convert the ARM error messages to signals that GDB knows about. */ | |
870 | ||
871 | static enum target_signal | |
872 | rdi_error_signal (err) | |
873 | int err; | |
874 | { | |
875 | switch (err) | |
876 | { | |
877 | case RDIError_NoError: | |
878 | return 0; | |
879 | case RDIError_Reset: | |
880 | return TARGET_SIGNAL_TERM; /* ??? */ | |
881 | case RDIError_UndefinedInstruction: | |
882 | return TARGET_SIGNAL_ILL; | |
883 | case RDIError_SoftwareInterrupt: | |
884 | case RDIError_PrefetchAbort: | |
885 | case RDIError_DataAbort: | |
886 | return TARGET_SIGNAL_TRAP; | |
887 | case RDIError_AddressException: | |
888 | return TARGET_SIGNAL_SEGV; | |
889 | case RDIError_IRQ: | |
890 | case RDIError_FIQ: | |
891 | return TARGET_SIGNAL_TRAP; | |
892 | case RDIError_Error: | |
893 | return TARGET_SIGNAL_TERM; | |
894 | case RDIError_BranchThrough0: | |
895 | return TARGET_SIGNAL_TRAP; | |
896 | case RDIError_NotInitialised: | |
897 | case RDIError_UnableToInitialise: | |
898 | case RDIError_WrongByteSex: | |
899 | case RDIError_UnableToTerminate: | |
900 | return TARGET_SIGNAL_UNKNOWN; | |
901 | case RDIError_BadInstruction: | |
902 | case RDIError_IllegalInstruction: | |
903 | return TARGET_SIGNAL_ILL; | |
904 | case RDIError_BadCPUStateSetting: | |
905 | case RDIError_UnknownCoPro: | |
906 | case RDIError_UnknownCoProState: | |
907 | case RDIError_BadCoProState: | |
908 | case RDIError_BadPointType: | |
909 | case RDIError_UnimplementedType: | |
910 | case RDIError_BadPointSize: | |
911 | case RDIError_UnimplementedSize: | |
912 | case RDIError_NoMorePoints: | |
913 | return TARGET_SIGNAL_UNKNOWN; | |
914 | case RDIError_BreakpointReached: | |
915 | case RDIError_WatchpointAccessed: | |
916 | return TARGET_SIGNAL_TRAP; | |
917 | case RDIError_NoSuchPoint: | |
918 | case RDIError_ProgramFinishedInStep: | |
919 | return TARGET_SIGNAL_UNKNOWN; | |
920 | case RDIError_UserInterrupt: | |
921 | return TARGET_SIGNAL_INT; | |
922 | case RDIError_IncompatibleRDILevels: | |
923 | case RDIError_LittleEndian: | |
924 | case RDIError_BigEndian: | |
925 | case RDIError_SoftInitialiseError: | |
926 | case RDIError_InsufficientPrivilege: | |
927 | case RDIError_UnimplementedMessage: | |
928 | case RDIError_UndefinedMessage: | |
929 | default: | |
930 | return TARGET_SIGNAL_UNKNOWN; | |
931 | } | |
932 | } | |
933 | \f | |
934 | /* Define the target operations structure. */ | |
935 | ||
c719b714 JM |
936 | struct target_ops arm_rdi_ops ; |
937 | ||
938 | static void init_rdi_ops(void) | |
939 | { | |
940 | arm_rdi_ops.to_shortname = "rdi"; | |
941 | arm_rdi_ops.to_longname = "ARM RDI"; | |
942 | arm_rdi_ops.to_doc = "Use a remote ARM-based computer; via the RDI library.\n\ | |
943 | Specify the serial device it is connected to (e.g. /dev/ttya)." ; | |
944 | arm_rdi_ops.to_open = arm_rdi_open; | |
945 | arm_rdi_ops.to_close = arm_rdi_close; | |
946 | arm_rdi_ops.to_attach = NULL; | |
947 | arm_rdi_ops.to_detach = arm_rdi_detach; | |
948 | arm_rdi_ops.to_resume = arm_rdi_resume; | |
949 | arm_rdi_ops.to_wait = arm_rdi_wait; | |
950 | arm_rdi_ops.to_fetch_registers = arm_rdi_fetch_registers; | |
951 | arm_rdi_ops.to_store_registers = arm_rdi_store_registers; | |
952 | arm_rdi_ops.to_prepare_to_store = arm_rdi_prepare_to_store; | |
953 | arm_rdi_ops.to_xfer_memory = arm_rdi_xfer_memory; | |
954 | arm_rdi_ops.to_files_info = arm_rdi_files_info; | |
955 | arm_rdi_ops.to_insert_breakpoint = arm_rdi_insert_breakpoint; | |
956 | arm_rdi_ops.to_remove_breakpoint = arm_rdi_remove_breakpoint; | |
957 | arm_rdi_ops.to_terminal_init = NULL; | |
958 | arm_rdi_ops.to_terminal_inferior = NULL; | |
959 | arm_rdi_ops.to_terminal_ours_for_output = NULL; | |
960 | arm_rdi_ops.to_terminal_ours = NULL; | |
961 | arm_rdi_ops.to_terminal_info = NULL; | |
962 | arm_rdi_ops.to_kill = arm_rdi_kill; | |
963 | arm_rdi_ops.to_load = generic_load; | |
964 | arm_rdi_ops.to_lookup_symbol = NULL; | |
965 | arm_rdi_ops.to_create_inferior = arm_rdi_create_inferior; | |
966 | arm_rdi_ops.to_mourn_inferior = arm_rdi_mourn_inferior; | |
967 | arm_rdi_ops.to_can_run = 0; | |
968 | arm_rdi_ops.to_notice_signals = 0; | |
969 | arm_rdi_ops.to_thread_alive = 0; | |
970 | arm_rdi_ops.to_stop = 0; | |
971 | arm_rdi_ops.to_stratum = process_stratum; | |
972 | arm_rdi_ops.DONT_USE = NULL; | |
973 | arm_rdi_ops.to_has_all_memory = 1; | |
974 | arm_rdi_ops.to_has_memory = 1; | |
975 | arm_rdi_ops.to_has_stack = 1; | |
976 | arm_rdi_ops.to_has_registers = 1; | |
977 | arm_rdi_ops.to_has_execution = 1; | |
978 | arm_rdi_ops.to_sections = NULL; | |
979 | arm_rdi_ops.to_sections_end = NULL; | |
980 | arm_rdi_ops.to_magic = OPS_MAGIC ; | |
981 | } | |
3a9c3d12 NC |
982 | |
983 | void | |
984 | _initialize_remote_rdi () | |
985 | { | |
c719b714 | 986 | init_rdi_ops() ; |
3a9c3d12 NC |
987 | add_target (&arm_rdi_ops); |
988 | } | |
989 | ||
990 | /* A little dummy to make linking with the library succeed. */ | |
991 | ||
992 | Fail() {} |