Commit | Line | Data |
---|---|---|
c906108c | 1 | /* GDB interface to ARM RDI library. |
b6ba6518 | 2 | Copyright 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc. |
c906108c | 3 | |
c5aa993b | 4 | This file is part of GDB. |
c906108c | 5 | |
c5aa993b JM |
6 | This program is free software; you can redistribute it and/or modify |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
c906108c | 10 | |
c5aa993b JM |
11 | This program is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
c906108c | 15 | |
c5aa993b JM |
16 | You should have received a copy of the GNU General Public License |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 59 Temple Place - Suite 330, | |
19 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
20 | |
21 | #include "defs.h" | |
22 | #include "gdb_string.h" | |
23 | #include <fcntl.h> | |
24 | #include "frame.h" | |
25 | #include "inferior.h" | |
26 | #include "bfd.h" | |
27 | #include "symfile.h" | |
28 | #include "target.h" | |
c906108c SS |
29 | #include "gdbcmd.h" |
30 | #include "objfiles.h" | |
31 | #include "gdb-stabs.h" | |
32 | #include "gdbthread.h" | |
33 | #include "gdbcore.h" | |
da59e081 | 34 | #include "breakpoint.h" |
fa58ee11 | 35 | #include "completer.h" |
4e052eda | 36 | #include "regcache.h" |
c906108c SS |
37 | |
38 | #ifdef USG | |
39 | #include <sys/types.h> | |
40 | #endif | |
41 | ||
42 | #include <signal.h> | |
43 | ||
44 | #include "rdi-share/ardi.h" | |
45 | #include "rdi-share/adp.h" | |
46 | #include "rdi-share/hsys.h" | |
47 | ||
a14ed312 | 48 | extern int isascii (int); |
c906108c SS |
49 | |
50 | /* Prototypes for local functions */ | |
51 | ||
a14ed312 | 52 | static void arm_rdi_files_info (struct target_ops *ignore); |
c906108c | 53 | |
a14ed312 KB |
54 | static int arm_rdi_xfer_memory (CORE_ADDR memaddr, char *myaddr, |
55 | int len, int should_write, | |
29e57380 | 56 | struct mem_attrib *attrib, |
a14ed312 | 57 | struct target_ops *target); |
c906108c | 58 | |
a14ed312 | 59 | static void arm_rdi_prepare_to_store (void); |
c906108c | 60 | |
a14ed312 | 61 | static void arm_rdi_fetch_registers (int regno); |
c906108c | 62 | |
a14ed312 | 63 | static void arm_rdi_resume (int pid, int step, enum target_signal siggnal); |
c906108c | 64 | |
a14ed312 | 65 | static int arm_rdi_start_remote (char *dummy); |
c906108c | 66 | |
a14ed312 | 67 | static void arm_rdi_open (char *name, int from_tty); |
c906108c | 68 | |
a14ed312 | 69 | static void arm_rdi_create_inferior (char *exec_file, char *args, char **env); |
c906108c | 70 | |
a14ed312 | 71 | static void arm_rdi_close (int quitting); |
c906108c | 72 | |
a14ed312 | 73 | static void arm_rdi_store_registers (int regno); |
c906108c | 74 | |
a14ed312 | 75 | static void arm_rdi_mourn (void); |
c906108c | 76 | |
a14ed312 | 77 | static void arm_rdi_send (char *buf); |
c906108c | 78 | |
a14ed312 | 79 | static int arm_rdi_wait (int pid, struct target_waitstatus *status); |
c906108c | 80 | |
a14ed312 | 81 | static void arm_rdi_kill (void); |
c906108c | 82 | |
a14ed312 | 83 | static void arm_rdi_detach (char *args, int from_tty); |
c906108c | 84 | |
a14ed312 | 85 | static void arm_rdi_interrupt (int signo); |
c906108c | 86 | |
a14ed312 | 87 | static void arm_rdi_interrupt_twice (int signo); |
c906108c | 88 | |
a14ed312 | 89 | static void interrupt_query (void); |
c906108c | 90 | |
a14ed312 | 91 | static int arm_rdi_insert_breakpoint (CORE_ADDR, char *); |
c906108c | 92 | |
a14ed312 | 93 | static int arm_rdi_remove_breakpoint (CORE_ADDR, char *); |
c906108c | 94 | |
a14ed312 | 95 | static char *rdi_error_message (int err); |
c906108c | 96 | |
a14ed312 | 97 | static enum target_signal rdi_error_signal (int err); |
c906108c SS |
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 | |
fba45db2 | 137 | arm_rdi_start_remote (char *dummy) |
c906108c SS |
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 | |
3bb04bdd | 146 | voiddummy (void *dummy) |
c906108c SS |
147 | { |
148 | fprintf_unfiltered (gdb_stdout, "void dummy\n"); | |
149 | } | |
150 | ||
151 | static void | |
fba45db2 | 152 | myprint (PTR arg, const char *format, va_list ap) |
c906108c SS |
153 | { |
154 | vfprintf_unfiltered (gdb_stdout, format, ap); | |
155 | } | |
156 | ||
157 | static void | |
fba45db2 | 158 | mywritec (PTR arg, int c) |
c906108c SS |
159 | { |
160 | if (isascii (c)) | |
161 | fputc_unfiltered (c, gdb_stdout); | |
162 | } | |
163 | ||
164 | static int | |
fba45db2 | 165 | mywrite (PTR arg, char const *buffer, int len) |
c906108c SS |
166 | { |
167 | int i; | |
168 | char *e; | |
169 | ||
170 | e = (char *) buffer; | |
171 | for (i = 0; i < len; i++) | |
c5aa993b | 172 | { |
c906108c | 173 | if (isascii ((int) *e)) |
c5aa993b JM |
174 | { |
175 | fputc_unfiltered ((int) *e, gdb_stdout); | |
176 | e++; | |
177 | } | |
178 | } | |
c906108c SS |
179 | |
180 | return len; | |
181 | } | |
182 | ||
183 | static void | |
fba45db2 | 184 | mypause (PTR arg) |
c906108c SS |
185 | { |
186 | } | |
187 | ||
188 | /* These last two are tricky as we have to handle the special case of | |
189 | being interrupted more carefully */ | |
190 | ||
191 | static int | |
fba45db2 | 192 | myreadc (PTR arg) |
c5aa993b | 193 | { |
c906108c SS |
194 | return fgetc (stdin); |
195 | } | |
196 | ||
197 | static char * | |
fba45db2 | 198 | mygets (PTR arg, char *buffer, int len) |
c906108c | 199 | { |
c5aa993b | 200 | return fgets (buffer, len, stdin); |
c906108c SS |
201 | } |
202 | ||
203 | /* Prevent multiple calls to angel_RDI_close(). */ | |
204 | static int closed_already = 1; | |
205 | ||
206 | /* Open a connection to a remote debugger. NAME is the filename used | |
207 | for communication. */ | |
208 | ||
209 | static void | |
fba45db2 | 210 | arm_rdi_open (char *name, int from_tty) |
c906108c SS |
211 | { |
212 | int rslt, i; | |
213 | unsigned long arg1, arg2; | |
5c44784c JM |
214 | char *openArgs = NULL; |
215 | char *devName = NULL; | |
216 | char *p; | |
c906108c SS |
217 | |
218 | if (name == NULL) | |
219 | error ("To open an RDI connection, you need to specify what serial\n\ | |
220 | device is attached to the remote system (e.g. /dev/ttya)."); | |
221 | ||
5c44784c JM |
222 | /* split name after whitespace, pass tail as arg to open command */ |
223 | ||
c2d11a7d | 224 | devName = xstrdup (name); |
4ce44c66 | 225 | p = strchr (devName, ' '); |
5c44784c JM |
226 | if (p) |
227 | { | |
228 | *p = '\0'; | |
229 | ++p; | |
230 | ||
231 | while (*p == ' ') | |
232 | ++p; | |
233 | ||
234 | openArgs = p; | |
235 | } | |
236 | ||
c906108c SS |
237 | /* Make the basic low-level connection. */ |
238 | ||
c5394b80 | 239 | arm_rdi_close (0); |
5c44784c | 240 | rslt = Adp_OpenDevice (devName, openArgs, rdi_heartbeat); |
c906108c SS |
241 | |
242 | if (rslt != adp_ok) | |
243 | error ("Could not open device \"%s\"", name); | |
244 | ||
245 | gdb_config.bytesex = 2 | (TARGET_BYTE_ORDER == BIG_ENDIAN ? 1 : 0); | |
246 | gdb_config.fpe = 1; | |
247 | gdb_config.rditype = 2; | |
248 | gdb_config.heartbeat_on = 1; | |
249 | gdb_config.flags = 2; | |
250 | ||
251 | gdb_hostif.dbgprint = myprint; | |
252 | gdb_hostif.dbgpause = mypause; | |
253 | gdb_hostif.dbgarg = NULL; | |
254 | gdb_hostif.writec = mywritec; | |
255 | gdb_hostif.readc = myreadc; | |
256 | gdb_hostif.write = mywrite; | |
257 | gdb_hostif.gets = mygets; | |
258 | gdb_hostif.hostosarg = NULL; | |
259 | gdb_hostif.reset = voiddummy; | |
260 | ||
261 | rslt = angel_RDI_open (10, &gdb_config, &gdb_hostif, NULL); | |
262 | if (rslt == RDIError_BigEndian || rslt == RDIError_LittleEndian) | |
c5aa993b | 263 | ; /* do nothing, this is the expected return */ |
c906108c SS |
264 | else if (rslt) |
265 | { | |
266 | printf_filtered ("RDI_open: %s\n", rdi_error_message (rslt)); | |
2acceee2 | 267 | Adp_CloseDevice (); |
3c06a63b | 268 | error ("RDI_open failed\n"); |
c906108c SS |
269 | } |
270 | ||
271 | rslt = angel_RDI_info (RDIInfo_Target, &arg1, &arg2); | |
272 | if (rslt) | |
273 | { | |
274 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
275 | } | |
276 | rslt = angel_RDI_info (RDIInfo_Points, &arg1, &arg2); | |
277 | if (rslt) | |
278 | { | |
279 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
280 | } | |
281 | rslt = angel_RDI_info (RDIInfo_Step, &arg1, &arg2); | |
282 | if (rslt) | |
283 | { | |
284 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
285 | } | |
286 | rslt = angel_RDI_info (RDIInfo_CoPro, &arg1, &arg2); | |
287 | if (rslt) | |
288 | { | |
289 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
290 | } | |
291 | rslt = angel_RDI_info (RDIInfo_SemiHosting, &arg1, &arg2); | |
292 | if (rslt) | |
293 | { | |
294 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
295 | } | |
296 | ||
297 | rslt = angel_RDI_info (RDIInfo_GetLoadSize, &arg1, &arg2); | |
298 | if (rslt) | |
299 | { | |
300 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
301 | } | |
302 | max_load_size = arg1; | |
303 | ||
304 | push_target (&arm_rdi_ops); | |
305 | ||
306 | target_fetch_registers (-1); | |
307 | ||
308 | rslt = angel_RDI_open (1, &gdb_config, NULL, NULL); | |
309 | if (rslt) | |
310 | { | |
311 | printf_filtered ("RDI_open: %s\n", rdi_error_message (rslt)); | |
312 | } | |
313 | ||
5c44784c JM |
314 | arg1 = rom_at_zero ? 0x0 : 0x13b; |
315 | ||
c906108c SS |
316 | rslt = angel_RDI_info (RDIVector_Catch, &arg1, &arg2); |
317 | if (rslt) | |
318 | { | |
319 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
320 | } | |
321 | ||
322 | arg1 = (unsigned long) ""; | |
323 | rslt = angel_RDI_info (RDISet_Cmdline, &arg1, &arg2); | |
324 | if (rslt) | |
325 | { | |
326 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
327 | } | |
328 | ||
329 | /* Clear out any existing records of breakpoints. */ | |
330 | { | |
331 | struct local_bp_list_entry *entry, *preventry = NULL; | |
332 | ||
333 | for (entry = local_bp_list; entry != NULL; entry = entry->next) | |
334 | { | |
335 | if (preventry) | |
b8c9b27d | 336 | xfree (preventry); |
c906108c SS |
337 | } |
338 | } | |
339 | ||
340 | printf_filtered ("Connected to ARM RDI target.\n"); | |
341 | closed_already = 0; | |
342 | inferior_pid = 42; | |
343 | } | |
344 | ||
345 | /* Start an inferior process and set inferior_pid to its pid. | |
346 | EXEC_FILE is the file to run. | |
347 | ARGS is a string containing the arguments to the program. | |
348 | ENV is the environment vector to pass. Errors reported with error(). | |
349 | On VxWorks and various standalone systems, we ignore exec_file. */ | |
350 | /* This is called not only when we first attach, but also when the | |
351 | user types "run" after having attached. */ | |
352 | ||
353 | static void | |
fba45db2 | 354 | arm_rdi_create_inferior (char *exec_file, char *args, char **env) |
c906108c SS |
355 | { |
356 | int len, rslt; | |
357 | unsigned long arg1, arg2; | |
358 | char *arg_buf; | |
359 | CORE_ADDR entry_point; | |
360 | ||
361 | if (exec_file == 0 || exec_bfd == 0) | |
c5aa993b | 362 | error ("No executable file specified."); |
c906108c SS |
363 | |
364 | entry_point = (CORE_ADDR) bfd_get_start_address (exec_bfd); | |
365 | ||
c5aa993b | 366 | arm_rdi_kill (); |
c906108c SS |
367 | remove_breakpoints (); |
368 | init_wait_for_inferior (); | |
369 | ||
c5aa993b | 370 | len = strlen (exec_file) + 1 + strlen (args) + 1 + /*slop */ 10; |
c906108c SS |
371 | arg_buf = (char *) alloca (len); |
372 | arg_buf[0] = '\0'; | |
373 | strcat (arg_buf, exec_file); | |
374 | strcat (arg_buf, " "); | |
375 | strcat (arg_buf, args); | |
376 | ||
377 | inferior_pid = 42; | |
c5aa993b | 378 | insert_breakpoints (); /* Needed to get correct instruction in cache */ |
c906108c SS |
379 | |
380 | if (env != NULL) | |
381 | { | |
382 | while (*env) | |
383 | { | |
384 | if (strncmp (*env, "MEMSIZE=", sizeof ("MEMSIZE=") - 1) == 0) | |
385 | { | |
386 | unsigned long top_of_memory; | |
387 | char *end_of_num; | |
388 | ||
389 | /* Set up memory limit */ | |
390 | top_of_memory = strtoul (*env + sizeof ("MEMSIZE=") - 1, | |
391 | &end_of_num, 0); | |
d4f3574e | 392 | printf_filtered ("Setting top-of-memory to 0x%lx\n", |
c906108c | 393 | top_of_memory); |
c5aa993b | 394 | |
c906108c SS |
395 | rslt = angel_RDI_info (RDIInfo_SetTopMem, &top_of_memory, &arg2); |
396 | if (rslt) | |
397 | { | |
398 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
399 | } | |
400 | } | |
401 | env++; | |
402 | } | |
403 | } | |
404 | ||
405 | arg1 = (unsigned long) arg_buf; | |
c5aa993b | 406 | rslt = angel_RDI_info (RDISet_Cmdline, /* &arg1 */ (unsigned long *) arg_buf, &arg2); |
c906108c SS |
407 | if (rslt) |
408 | { | |
409 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
410 | } | |
411 | ||
412 | proceed (entry_point, TARGET_SIGNAL_DEFAULT, 0); | |
413 | } | |
414 | ||
415 | /* This takes a program previously attached to and detaches it. After | |
416 | this is done, GDB can be used to debug some other program. We | |
417 | better not have left any breakpoints in the target program or it'll | |
418 | die when it hits one. */ | |
419 | ||
420 | static void | |
fba45db2 | 421 | arm_rdi_detach (char *args, int from_tty) |
c906108c SS |
422 | { |
423 | pop_target (); | |
424 | } | |
425 | ||
426 | /* Clean up connection to a remote debugger. */ | |
427 | ||
428 | static void | |
fba45db2 | 429 | arm_rdi_close (int quitting) |
c906108c SS |
430 | { |
431 | int rslt; | |
432 | ||
c5aa993b | 433 | if (!closed_already) |
c906108c SS |
434 | { |
435 | rslt = angel_RDI_close (); | |
436 | if (rslt) | |
437 | { | |
438 | printf_filtered ("RDI_close: %s\n", rdi_error_message (rslt)); | |
439 | } | |
440 | closed_already = 1; | |
441 | inferior_pid = 0; | |
96baa820 | 442 | Adp_CloseDevice (); |
75660bc0 | 443 | generic_mourn_inferior (); |
c906108c SS |
444 | } |
445 | } | |
446 | \f | |
447 | /* Tell the remote machine to resume. */ | |
448 | ||
449 | static void | |
fba45db2 | 450 | arm_rdi_resume (int pid, int step, enum target_signal siggnal) |
c906108c SS |
451 | { |
452 | int rslt; | |
453 | PointHandle point; | |
454 | ||
c5aa993b | 455 | if (0 /* turn on when hardware supports single-stepping */ ) |
c906108c SS |
456 | { |
457 | rslt = angel_RDI_step (1, &point); | |
458 | if (rslt) | |
459 | { | |
460 | printf_filtered ("RDI_step: %s\n", rdi_error_message (rslt)); | |
461 | } | |
462 | } | |
463 | else | |
464 | { | |
465 | char handle[4]; | |
466 | CORE_ADDR pc; | |
467 | ||
468 | if (step) | |
469 | { | |
470 | pc = read_register (PC_REGNUM); | |
471 | pc = arm_get_next_pc (pc); | |
472 | arm_rdi_insert_breakpoint (pc, handle); | |
473 | } | |
474 | execute_status = rslt = angel_RDI_execute (&point); | |
475 | if (rslt == RDIError_BreakpointReached) | |
476 | ; | |
477 | else if (rslt) | |
478 | { | |
479 | printf_filtered ("RDI_execute: %s\n", rdi_error_message (rslt)); | |
480 | } | |
481 | if (step) | |
482 | { | |
483 | arm_rdi_remove_breakpoint (pc, handle); | |
484 | } | |
485 | } | |
486 | } | |
487 | \f | |
488 | /* Send ^C to target to halt it. Target will respond, and send us a | |
489 | packet. */ | |
490 | ||
491 | static void | |
fba45db2 | 492 | arm_rdi_interrupt (int signo) |
c906108c SS |
493 | { |
494 | } | |
495 | ||
c5aa993b | 496 | static void (*ofunc) (); |
c906108c SS |
497 | |
498 | /* The user typed ^C twice. */ | |
499 | static void | |
fba45db2 | 500 | arm_rdi_interrupt_twice (int signo) |
c906108c SS |
501 | { |
502 | } | |
503 | ||
504 | /* Ask the user what to do when an interrupt is received. */ | |
505 | ||
506 | static void | |
fba45db2 | 507 | interrupt_query (void) |
c906108c SS |
508 | { |
509 | } | |
510 | ||
511 | /* Wait until the remote machine stops, then return, storing status in | |
512 | STATUS just as `wait' would. Returns "pid" (though it's not clear | |
513 | what, if anything, that means in the case of this target). */ | |
514 | ||
515 | static int | |
fba45db2 | 516 | arm_rdi_wait (int pid, struct target_waitstatus *status) |
c906108c SS |
517 | { |
518 | status->kind = (execute_status == RDIError_NoError ? | |
c5aa993b | 519 | TARGET_WAITKIND_EXITED : TARGET_WAITKIND_STOPPED); |
c906108c SS |
520 | |
521 | /* convert stopped code from target into right signal */ | |
522 | status->value.sig = rdi_error_signal (execute_status); | |
523 | ||
524 | return inferior_pid; | |
525 | } | |
526 | ||
527 | /* Read the remote registers into the block REGS. */ | |
528 | ||
529 | /* ARGSUSED */ | |
530 | static void | |
fba45db2 | 531 | arm_rdi_fetch_registers (int regno) |
c906108c SS |
532 | { |
533 | int rslt, rdi_regmask; | |
534 | unsigned long rawreg, rawregs[32]; | |
535 | char cookedreg[4]; | |
536 | ||
c5aa993b | 537 | if (regno == -1) |
c906108c SS |
538 | { |
539 | rslt = angel_RDI_CPUread (255, 0x27fff, rawregs); | |
540 | if (rslt) | |
541 | { | |
542 | printf_filtered ("RDI_CPUread: %s\n", rdi_error_message (rslt)); | |
543 | } | |
544 | ||
545 | for (regno = 0; regno < 15; regno++) | |
546 | { | |
547 | store_unsigned_integer (cookedreg, 4, rawregs[regno]); | |
548 | supply_register (regno, (char *) cookedreg); | |
549 | } | |
550 | store_unsigned_integer (cookedreg, 4, rawregs[15]); | |
551 | supply_register (PS_REGNUM, (char *) cookedreg); | |
552 | arm_rdi_fetch_registers (PC_REGNUM); | |
553 | } | |
554 | else | |
555 | { | |
556 | if (regno == PC_REGNUM) | |
557 | rdi_regmask = RDIReg_PC; | |
558 | else if (regno == PS_REGNUM) | |
559 | rdi_regmask = RDIReg_CPSR; | |
560 | else if (regno < 0 || regno > 15) | |
561 | { | |
562 | rawreg = 0; | |
563 | supply_register (regno, (char *) &rawreg); | |
564 | return; | |
565 | } | |
566 | else | |
567 | rdi_regmask = 1 << regno; | |
568 | ||
569 | rslt = angel_RDI_CPUread (255, rdi_regmask, &rawreg); | |
570 | if (rslt) | |
571 | { | |
572 | printf_filtered ("RDI_CPUread: %s\n", rdi_error_message (rslt)); | |
573 | } | |
574 | store_unsigned_integer (cookedreg, 4, rawreg); | |
575 | supply_register (regno, (char *) cookedreg); | |
576 | } | |
577 | } | |
578 | ||
c5aa993b | 579 | static void |
fba45db2 | 580 | arm_rdi_prepare_to_store (void) |
c906108c SS |
581 | { |
582 | /* Nothing to do. */ | |
583 | } | |
584 | ||
585 | /* Store register REGNO, or all registers if REGNO == -1, from the contents | |
586 | of REGISTERS. FIXME: ignores errors. */ | |
587 | ||
588 | static void | |
fba45db2 | 589 | arm_rdi_store_registers (int regno) |
c906108c SS |
590 | { |
591 | int rslt, rdi_regmask; | |
592 | ||
593 | /* These need to be able to take 'floating point register' contents */ | |
594 | unsigned long rawreg[3], rawerreg[3]; | |
595 | ||
c5aa993b | 596 | if (regno == -1) |
c906108c SS |
597 | { |
598 | for (regno = 0; regno < NUM_REGS; regno++) | |
599 | arm_rdi_store_registers (regno); | |
600 | } | |
601 | else | |
602 | { | |
603 | read_register_gen (regno, (char *) rawreg); | |
604 | /* RDI manipulates data in host byte order, so convert now. */ | |
605 | store_unsigned_integer (rawerreg, 4, rawreg[0]); | |
606 | ||
607 | if (regno == PC_REGNUM) | |
608 | rdi_regmask = RDIReg_PC; | |
609 | else if (regno == PS_REGNUM) | |
610 | rdi_regmask = RDIReg_CPSR; | |
611 | else if (regno < 0 || regno > 15) | |
612 | return; | |
613 | else | |
614 | rdi_regmask = 1 << regno; | |
615 | ||
616 | rslt = angel_RDI_CPUwrite (255, rdi_regmask, rawerreg); | |
617 | if (rslt) | |
618 | { | |
619 | printf_filtered ("RDI_CPUwrite: %s\n", rdi_error_message (rslt)); | |
620 | } | |
621 | } | |
622 | } | |
623 | \f | |
624 | /* Read or write LEN bytes from inferior memory at MEMADDR, | |
625 | transferring to or from debugger address MYADDR. Write to inferior | |
626 | if SHOULD_WRITE is nonzero. Returns length of data written or | |
120abad8 | 627 | read; 0 for error. TARGET is unused. */ |
c906108c SS |
628 | |
629 | /* ARGSUSED */ | |
630 | static int | |
29e57380 C |
631 | arm_rdi_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int should_write, |
632 | struct mem_attrib *attrib ATTRIBUTE_UNUSED, | |
633 | struct target_ops *target ATTRIBUTE_UNUSED) | |
c906108c SS |
634 | { |
635 | int rslt, i; | |
636 | ||
637 | if (should_write) | |
638 | { | |
639 | rslt = angel_RDI_write (myaddr, memaddr, &len); | |
640 | if (rslt) | |
641 | { | |
642 | printf_filtered ("RDI_write: %s\n", rdi_error_message (rslt)); | |
643 | } | |
644 | } | |
c5aa993b | 645 | else |
c906108c SS |
646 | { |
647 | rslt = angel_RDI_read (memaddr, myaddr, &len); | |
648 | if (rslt) | |
649 | { | |
650 | printf_filtered ("RDI_read: %s\n", rdi_error_message (rslt)); | |
651 | len = 0; | |
652 | } | |
653 | } | |
654 | return len; | |
655 | } | |
656 | \f | |
657 | /* Display random info collected from the target. */ | |
658 | ||
659 | static void | |
fba45db2 | 660 | arm_rdi_files_info (struct target_ops *ignore) |
c906108c SS |
661 | { |
662 | char *file = "nothing"; | |
663 | int rslt; | |
664 | unsigned long arg1, arg2; | |
665 | ||
666 | rslt = angel_RDI_info (RDIInfo_Target, &arg1, &arg2); | |
667 | if (rslt) | |
668 | { | |
669 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
670 | } | |
671 | if (arg1 & (1 << 15)) | |
672 | printf_filtered ("Target supports Thumb code.\n"); | |
673 | if (arg1 & (1 << 14)) | |
674 | printf_filtered ("Target can do profiling.\n"); | |
675 | if (arg1 & (1 << 4)) | |
676 | printf_filtered ("Target is real hardware.\n"); | |
c5aa993b | 677 | |
c906108c SS |
678 | rslt = angel_RDI_info (RDIInfo_Step, &arg1, &arg2); |
679 | if (rslt) | |
680 | { | |
681 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
682 | } | |
683 | printf_filtered ("Target can%s single-step.\n", (arg1 & 0x4 ? "" : "not")); | |
684 | ||
685 | rslt = angel_RDI_info (RDIInfo_Icebreaker, &arg1, &arg2); | |
686 | if (rslt) | |
687 | { | |
688 | printf_filtered ("RDI_info: %s\n", rdi_error_message (rslt)); | |
689 | } | |
690 | else | |
691 | printf_filtered ("Target includes an EmbeddedICE.\n"); | |
692 | } | |
693 | \f | |
694 | static void | |
fba45db2 | 695 | arm_rdi_kill (void) |
c906108c SS |
696 | { |
697 | int rslt; | |
698 | ||
699 | rslt = angel_RDI_open (1, &gdb_config, NULL, NULL); | |
700 | if (rslt) | |
701 | { | |
702 | printf_filtered ("RDI_open: %s\n", rdi_error_message (rslt)); | |
703 | } | |
704 | } | |
705 | ||
706 | static void | |
fba45db2 | 707 | arm_rdi_mourn_inferior (void) |
c906108c | 708 | { |
da59e081 JM |
709 | /* We remove the inserted breakpoints in case the user wants to |
710 | issue another target and load commands to rerun his application; | |
711 | This is something that wouldn't work on a native target, for instance, | |
712 | as the process goes away when the inferior exits, but it works with | |
713 | some remote targets like this one. That is why this is done here. */ | |
714 | remove_breakpoints(); | |
c906108c SS |
715 | unpush_target (&arm_rdi_ops); |
716 | generic_mourn_inferior (); | |
717 | } | |
718 | \f | |
719 | /* While the RDI library keeps track of its own breakpoints, we need | |
720 | to remember "handles" so that we can delete them later. Since | |
721 | breakpoints get used for stepping, be careful not to leak memory | |
722 | here. */ | |
723 | ||
724 | static int | |
fba45db2 | 725 | arm_rdi_insert_breakpoint (CORE_ADDR addr, char *contents_cache) |
c906108c SS |
726 | { |
727 | int rslt; | |
728 | PointHandle point; | |
729 | struct local_bp_list_entry *entry; | |
730 | int type = RDIPoint_EQ; | |
731 | ||
732 | if (arm_pc_is_thumb (addr) || arm_pc_is_thumb_dummy (addr)) | |
733 | type |= RDIPoint_16Bit; | |
734 | rslt = angel_RDI_setbreak (addr, type, 0, &point); | |
735 | if (rslt) | |
736 | { | |
737 | printf_filtered ("RDI_setbreak: %s\n", rdi_error_message (rslt)); | |
738 | } | |
739 | entry = | |
740 | (struct local_bp_list_entry *) xmalloc (sizeof (struct local_bp_list_entry)); | |
741 | entry->addr = addr; | |
742 | entry->point = point; | |
743 | entry->next = local_bp_list; | |
744 | local_bp_list = entry; | |
745 | return rslt; | |
746 | } | |
747 | ||
748 | static int | |
fba45db2 | 749 | arm_rdi_remove_breakpoint (CORE_ADDR addr, char *contents_cache) |
c906108c SS |
750 | { |
751 | int rslt; | |
752 | PointHandle point; | |
753 | struct local_bp_list_entry *entry, *preventry; | |
754 | ||
755 | for (entry = local_bp_list; entry != NULL; entry = entry->next) | |
756 | { | |
757 | if (entry->addr == addr) | |
758 | { | |
759 | break; | |
760 | } | |
761 | preventry = entry; | |
762 | } | |
763 | if (entry) | |
764 | { | |
765 | rslt = angel_RDI_clearbreak (entry->point); | |
766 | if (rslt) | |
767 | { | |
768 | printf_filtered ("RDI_clearbreak: %s\n", rdi_error_message (rslt)); | |
769 | } | |
770 | /* Delete the breakpoint entry locally. */ | |
771 | if (entry == local_bp_list) | |
772 | { | |
773 | local_bp_list = entry->next; | |
774 | } | |
775 | else | |
776 | { | |
777 | preventry->next = entry->next; | |
778 | } | |
b8c9b27d | 779 | xfree (entry); |
c906108c SS |
780 | } |
781 | return 0; | |
782 | } | |
783 | \f | |
784 | static char * | |
fba45db2 | 785 | rdi_error_message (int err) |
c906108c SS |
786 | { |
787 | switch (err) | |
788 | { | |
c5aa993b | 789 | case RDIError_NoError: |
c906108c SS |
790 | return "no error"; |
791 | case RDIError_Reset: | |
792 | return "debuggee reset"; | |
793 | case RDIError_UndefinedInstruction: | |
794 | return "undefined instruction"; | |
795 | case RDIError_SoftwareInterrupt: | |
796 | return "SWI trapped"; | |
797 | case RDIError_PrefetchAbort: | |
798 | return "prefetch abort, execution ran into unmapped memory?"; | |
799 | case RDIError_DataAbort: | |
800 | return "data abort, no memory at specified address?"; | |
801 | case RDIError_AddressException: | |
802 | return "address exception, access >26bit in 26bit mode"; | |
803 | case RDIError_IRQ: | |
804 | return "IRQ, interrupt trapped"; | |
805 | case RDIError_FIQ: | |
806 | return "FIQ, fast interrupt trapped"; | |
807 | case RDIError_Error: | |
808 | return "a miscellaneous type of error"; | |
809 | case RDIError_BranchThrough0: | |
810 | return "branch through location 0"; | |
811 | case RDIError_NotInitialised: | |
812 | return "internal error, RDI_open not called first"; | |
813 | case RDIError_UnableToInitialise: | |
814 | return "internal error, target world is broken"; | |
815 | case RDIError_WrongByteSex: | |
816 | return "See Operator: WrongByteSex"; | |
817 | case RDIError_UnableToTerminate: | |
818 | return "See Operator: Unable to Terminate"; | |
819 | case RDIError_BadInstruction: | |
820 | return "bad instruction, illegal to execute this instruction"; | |
821 | case RDIError_IllegalInstruction: | |
822 | return "illegal instruction, the effect of executing it is undefined"; | |
823 | case RDIError_BadCPUStateSetting: | |
824 | return "internal error, tried to set SPSR of user mode"; | |
825 | case RDIError_UnknownCoPro: | |
826 | return "unknown co-processor"; | |
827 | case RDIError_UnknownCoProState: | |
828 | return "cannot execute co-processor request"; | |
829 | case RDIError_BadCoProState: | |
830 | return "recognizably broken co-processor request"; | |
831 | case RDIError_BadPointType: | |
832 | return "internal error, bad point yype"; | |
833 | case RDIError_UnimplementedType: | |
834 | return "internal error, unimplemented type"; | |
835 | case RDIError_BadPointSize: | |
836 | return "internal error, bad point size"; | |
837 | case RDIError_UnimplementedSize: | |
838 | return "internal error, unimplemented size"; | |
839 | case RDIError_NoMorePoints: | |
840 | return "last break/watch point was used"; | |
841 | case RDIError_BreakpointReached: | |
842 | return "breakpoint reached"; | |
843 | case RDIError_WatchpointAccessed: | |
844 | return "watchpoint accessed"; | |
845 | case RDIError_NoSuchPoint: | |
846 | return "attempted to clear non-existent break/watch point"; | |
847 | case RDIError_ProgramFinishedInStep: | |
848 | return "end of the program reached while stepping"; | |
849 | case RDIError_UserInterrupt: | |
850 | return "you pressed Escape"; | |
851 | case RDIError_CantSetPoint: | |
852 | return "no more break/watch points available"; | |
853 | case RDIError_IncompatibleRDILevels: | |
854 | return "incompatible RDI levels"; | |
855 | case RDIError_LittleEndian: | |
856 | return "debuggee is little endian"; | |
857 | case RDIError_BigEndian: | |
858 | return "debuggee is big endian"; | |
859 | case RDIError_SoftInitialiseError: | |
860 | return "recoverable error in RDI initialization"; | |
861 | case RDIError_InsufficientPrivilege: | |
862 | return "internal error, supervisor state not accessible to monitor"; | |
863 | case RDIError_UnimplementedMessage: | |
864 | return "internal error, unimplemented message"; | |
865 | case RDIError_UndefinedMessage: | |
866 | return "internal error, undefined message"; | |
867 | default: | |
c5aa993b | 868 | return "undefined error message, should reset target"; |
c906108c SS |
869 | } |
870 | } | |
871 | ||
872 | /* Convert the ARM error messages to signals that GDB knows about. */ | |
873 | ||
874 | static enum target_signal | |
fba45db2 | 875 | rdi_error_signal (int err) |
c906108c SS |
876 | { |
877 | switch (err) | |
878 | { | |
879 | case RDIError_NoError: | |
880 | return 0; | |
881 | case RDIError_Reset: | |
c5aa993b | 882 | return TARGET_SIGNAL_TERM; /* ??? */ |
c906108c SS |
883 | case RDIError_UndefinedInstruction: |
884 | return TARGET_SIGNAL_ILL; | |
885 | case RDIError_SoftwareInterrupt: | |
886 | case RDIError_PrefetchAbort: | |
887 | case RDIError_DataAbort: | |
888 | return TARGET_SIGNAL_TRAP; | |
889 | case RDIError_AddressException: | |
890 | return TARGET_SIGNAL_SEGV; | |
891 | case RDIError_IRQ: | |
892 | case RDIError_FIQ: | |
893 | return TARGET_SIGNAL_TRAP; | |
894 | case RDIError_Error: | |
895 | return TARGET_SIGNAL_TERM; | |
896 | case RDIError_BranchThrough0: | |
897 | return TARGET_SIGNAL_TRAP; | |
898 | case RDIError_NotInitialised: | |
899 | case RDIError_UnableToInitialise: | |
900 | case RDIError_WrongByteSex: | |
901 | case RDIError_UnableToTerminate: | |
902 | return TARGET_SIGNAL_UNKNOWN; | |
903 | case RDIError_BadInstruction: | |
904 | case RDIError_IllegalInstruction: | |
905 | return TARGET_SIGNAL_ILL; | |
906 | case RDIError_BadCPUStateSetting: | |
907 | case RDIError_UnknownCoPro: | |
908 | case RDIError_UnknownCoProState: | |
909 | case RDIError_BadCoProState: | |
910 | case RDIError_BadPointType: | |
911 | case RDIError_UnimplementedType: | |
912 | case RDIError_BadPointSize: | |
913 | case RDIError_UnimplementedSize: | |
914 | case RDIError_NoMorePoints: | |
915 | return TARGET_SIGNAL_UNKNOWN; | |
916 | case RDIError_BreakpointReached: | |
917 | case RDIError_WatchpointAccessed: | |
918 | return TARGET_SIGNAL_TRAP; | |
919 | case RDIError_NoSuchPoint: | |
920 | case RDIError_ProgramFinishedInStep: | |
921 | return TARGET_SIGNAL_UNKNOWN; | |
922 | case RDIError_UserInterrupt: | |
923 | return TARGET_SIGNAL_INT; | |
924 | case RDIError_IncompatibleRDILevels: | |
925 | case RDIError_LittleEndian: | |
926 | case RDIError_BigEndian: | |
927 | case RDIError_SoftInitialiseError: | |
928 | case RDIError_InsufficientPrivilege: | |
929 | case RDIError_UnimplementedMessage: | |
930 | case RDIError_UndefinedMessage: | |
931 | default: | |
c5aa993b | 932 | return TARGET_SIGNAL_UNKNOWN; |
c906108c SS |
933 | } |
934 | } | |
e9110f4f FN |
935 | |
936 | static void | |
937 | arm_rdi_stop(void) | |
938 | { | |
939 | angel_RDI_stop_request(); | |
940 | } | |
941 | ||
c906108c SS |
942 | \f |
943 | /* Define the target operations structure. */ | |
944 | ||
945 | static void | |
fba45db2 | 946 | init_rdi_ops (void) |
c906108c | 947 | { |
c5aa993b | 948 | arm_rdi_ops.to_shortname = "rdi"; |
c906108c SS |
949 | arm_rdi_ops.to_longname = "ARM RDI"; |
950 | arm_rdi_ops.to_doc = "Use a remote ARM-based computer; via the RDI library.\n\ | |
c5aa993b JM |
951 | Specify the serial device it is connected to (e.g. /dev/ttya)."; |
952 | arm_rdi_ops.to_open = arm_rdi_open; | |
953 | arm_rdi_ops.to_close = arm_rdi_close; | |
954 | arm_rdi_ops.to_detach = arm_rdi_detach; | |
955 | arm_rdi_ops.to_resume = arm_rdi_resume; | |
956 | arm_rdi_ops.to_wait = arm_rdi_wait; | |
e9110f4f | 957 | arm_rdi_ops.to_stop = arm_rdi_stop; |
c906108c SS |
958 | arm_rdi_ops.to_fetch_registers = arm_rdi_fetch_registers; |
959 | arm_rdi_ops.to_store_registers = arm_rdi_store_registers; | |
960 | arm_rdi_ops.to_prepare_to_store = arm_rdi_prepare_to_store; | |
961 | arm_rdi_ops.to_xfer_memory = arm_rdi_xfer_memory; | |
962 | arm_rdi_ops.to_files_info = arm_rdi_files_info; | |
963 | arm_rdi_ops.to_insert_breakpoint = arm_rdi_insert_breakpoint; | |
c5aa993b JM |
964 | arm_rdi_ops.to_remove_breakpoint = arm_rdi_remove_breakpoint; |
965 | arm_rdi_ops.to_kill = arm_rdi_kill; | |
966 | arm_rdi_ops.to_load = generic_load; | |
c906108c SS |
967 | arm_rdi_ops.to_create_inferior = arm_rdi_create_inferior; |
968 | arm_rdi_ops.to_mourn_inferior = arm_rdi_mourn_inferior; | |
969 | arm_rdi_ops.to_stratum = process_stratum; | |
c5aa993b JM |
970 | arm_rdi_ops.to_has_all_memory = 1; |
971 | arm_rdi_ops.to_has_memory = 1; | |
972 | arm_rdi_ops.to_has_stack = 1; | |
973 | arm_rdi_ops.to_has_registers = 1; | |
974 | arm_rdi_ops.to_has_execution = 1; | |
975 | arm_rdi_ops.to_magic = OPS_MAGIC; | |
c906108c SS |
976 | } |
977 | ||
4ce44c66 JM |
978 | static void |
979 | rdilogfile_command (char *arg, int from_tty) | |
5c44784c JM |
980 | { |
981 | if (!arg || strlen (arg) == 0) | |
982 | { | |
983 | printf_filtered ("rdi log file is '%s'\n", log_filename); | |
984 | return; | |
985 | } | |
4ce44c66 | 986 | |
5c44784c | 987 | if (log_filename) |
b8c9b27d | 988 | xfree (log_filename); |
4ce44c66 | 989 | |
c2d11a7d | 990 | log_filename = xstrdup (arg); |
5c44784c JM |
991 | |
992 | Adp_SetLogfile (log_filename); | |
993 | } | |
994 | ||
4ce44c66 JM |
995 | static void |
996 | rdilogenable_command (char *args, int from_tty) | |
5c44784c JM |
997 | { |
998 | if (!args || strlen (args) == 0) | |
999 | { | |
1000 | printf_filtered ("rdi log is %s\n", log_enable ? "enabled" : "disabled"); | |
1001 | return; | |
1002 | } | |
4ce44c66 JM |
1003 | |
1004 | if (!strcasecmp (args, "1") || | |
1005 | !strcasecmp (args, "y") || | |
1006 | !strcasecmp (args, "yes") || | |
1007 | !strcasecmp (args, "on") || | |
1008 | !strcasecmp (args, "t") || | |
1009 | !strcasecmp (args, "true")) | |
1010 | Adp_SetLogEnable (log_enable = 1); | |
1011 | else if (!strcasecmp (args, "0") || | |
1012 | !strcasecmp (args, "n") || | |
1013 | !strcasecmp (args, "no") || | |
1014 | !strcasecmp (args, "off") || | |
1015 | !strcasecmp (args, "f") || | |
1016 | !strcasecmp (args, "false")) | |
1017 | Adp_SetLogEnable (log_enable = 0); | |
5c44784c JM |
1018 | else |
1019 | printf_filtered ("rdilogenable: unrecognized argument '%s'\n" | |
4ce44c66 | 1020 | " try y or n\n", args); |
5c44784c JM |
1021 | } |
1022 | ||
c906108c | 1023 | void |
fba45db2 | 1024 | _initialize_remote_rdi (void) |
c906108c | 1025 | { |
fa58ee11 EZ |
1026 | struct cmd_list_element *c; |
1027 | ||
c5aa993b | 1028 | init_rdi_ops (); |
c906108c | 1029 | add_target (&arm_rdi_ops); |
5c44784c | 1030 | |
c2d11a7d | 1031 | log_filename = xstrdup ("rdi.log"); |
4ce44c66 JM |
1032 | Adp_SetLogfile (log_filename); |
1033 | Adp_SetLogEnable (log_enable); | |
5c44784c | 1034 | |
fa58ee11 EZ |
1035 | c = add_cmd ("rdilogfile", class_maintenance, |
1036 | rdilogfile_command, | |
1037 | "Set filename for ADP packet log.\n\ | |
5c44784c JM |
1038 | This file is used to log Angel Debugger Protocol packets.\n\ |
1039 | With a single argument, sets the logfile name to that value.\n\ | |
1040 | Without an argument, shows the current logfile name.\n\ | |
1041 | See also: rdilogenable\n", | |
1042 | &maintenancelist); | |
fa58ee11 | 1043 | c->completer = filename_completer; |
5c44784c | 1044 | |
4ce44c66 | 1045 | add_cmd ("rdilogenable", class_maintenance, |
5c44784c JM |
1046 | rdilogenable_command, |
1047 | "Set enable logging of ADP packets.\n\ | |
1048 | This will log ADP packets exchanged between gdb and the\n\ | |
1049 | rdi target device.\n\ | |
1050 | An argument of 1,t,true,y,yes will enable.\n\ | |
1051 | An argument of 0,f,false,n,no will disabled.\n\ | |
1052 | Withough an argument, it will display current state.\n", | |
1053 | &maintenancelist); | |
1054 | ||
1055 | add_show_from_set | |
1056 | (add_set_cmd ("rdiromatzero", no_class, | |
1057 | var_boolean, (char *) &rom_at_zero, | |
1058 | "Set target has ROM at addr 0.\n\ | |
1059 | A true value disables vector catching, false enables vector catching.\n\ | |
1060 | This is evaluated at the time the 'target rdi' command is executed\n", | |
1061 | &setlist), | |
4ce44c66 | 1062 | &showlist); |
5c44784c JM |
1063 | |
1064 | add_show_from_set | |
1065 | (add_set_cmd ("rdiheartbeat", no_class, | |
1066 | var_boolean, (char *) &rdi_heartbeat, | |
1067 | "Set enable for ADP heartbeat packets.\n\ | |
1068 | I don't know why you would want this. If you enable them,\n\ | |
1069 | it will confuse ARM and EPI JTAG interface boxes as well\n\ | |
1070 | as the Angel Monitor.\n", | |
1071 | &setlist), | |
4ce44c66 | 1072 | &showlist); |
c906108c SS |
1073 | } |
1074 | ||
1075 | /* A little dummy to make linking with the library succeed. */ | |
1076 | ||
c5aa993b | 1077 | int |
fba45db2 | 1078 | Fail (void) |
c5aa993b JM |
1079 | { |
1080 | return 0; | |
1081 | } |