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6027a0b8 JM |
1 | /* ICE interface for the NEC V850 for GDB, the GNU debugger. |
2 | Copyright 1996, Free Software Foundation, Inc. | |
3 | ||
c5aa993b | 4 | This file is part of GDB. |
6027a0b8 | 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. | |
6027a0b8 | 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. | |
6027a0b8 | 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. */ | |
6027a0b8 JM |
20 | |
21 | #include "defs.h" | |
22 | #include "gdb_string.h" | |
23 | #include "frame.h" | |
24 | #include "symtab.h" | |
25 | #include "inferior.h" | |
26 | #include "breakpoint.h" | |
27 | #include "symfile.h" | |
28 | #include "target.h" | |
29 | #include "objfiles.h" | |
30 | #include "gdbcore.h" | |
31 | #include "value.h" | |
32 | #include "command.h" | |
33 | ||
34 | #include <windows.h> | |
c5aa993b JM |
35 | #include <winuser.h> /* for WM_USER */ |
36 | ||
37 | extern unsigned long int strtoul (const char *nptr, char **endptr, | |
38 | int base); | |
6027a0b8 | 39 | |
6027a0b8 JM |
40 | /* Local data definitions */ |
41 | struct MessageIO | |
c5aa993b JM |
42 | { |
43 | int size; /* length of input or output in bytes */ | |
44 | char *buf; /* buffer having the input/output information */ | |
45 | }; | |
6027a0b8 JM |
46 | |
47 | /* Prototypes for functions located in other files */ | |
48 | extern void break_command PARAMS ((char *, int)); | |
49 | ||
50 | extern void stepi_command PARAMS ((char *, int)); | |
51 | ||
52 | extern void nexti_command PARAMS ((char *, int)); | |
53 | ||
54 | extern void continue_command PARAMS ((char *, int)); | |
55 | ||
56 | extern int (*ui_loop_hook) PARAMS ((int)); | |
57 | ||
58 | /* Prototypes for local functions */ | |
59 | static int init_hidden_window PARAMS ((void)); | |
60 | ||
61 | static LRESULT CALLBACK v850ice_wndproc PARAMS ((HWND, UINT, WPARAM, LPARAM)); | |
62 | ||
c5aa993b | 63 | static void v850ice_files_info PARAMS ((struct target_ops * ignore)); |
6027a0b8 JM |
64 | |
65 | static int v850ice_xfer_memory PARAMS ((CORE_ADDR memaddr, char *myaddr, | |
66 | int len, int should_write, | |
c5aa993b | 67 | struct target_ops * target)); |
6027a0b8 JM |
68 | |
69 | static void v850ice_prepare_to_store PARAMS ((void)); | |
70 | ||
71 | static void v850ice_fetch_registers PARAMS ((int regno)); | |
72 | ||
73 | static void v850ice_resume PARAMS ((int pid, int step, | |
c5aa993b | 74 | enum target_signal siggnal)); |
6027a0b8 JM |
75 | |
76 | static void v850ice_open PARAMS ((char *name, int from_tty)); | |
77 | ||
78 | static void v850ice_close PARAMS ((int quitting)); | |
79 | ||
80 | static void v850ice_stop PARAMS ((void)); | |
81 | ||
82 | static void v850ice_store_registers PARAMS ((int regno)); | |
83 | ||
84 | static void v850ice_mourn PARAMS ((void)); | |
85 | ||
c5aa993b | 86 | static int v850ice_wait PARAMS ((int pid, struct target_waitstatus * status)); |
6027a0b8 JM |
87 | |
88 | static void v850ice_kill PARAMS ((void)); | |
89 | ||
90 | static void v850ice_detach PARAMS ((char *args, int from_tty)); | |
91 | ||
92 | static int v850ice_insert_breakpoint PARAMS ((CORE_ADDR, char *)); | |
93 | ||
94 | static int v850ice_remove_breakpoint PARAMS ((CORE_ADDR, char *)); | |
95 | ||
96 | static void v850ice_command PARAMS ((char *, int)); | |
97 | ||
98 | static int ice_disassemble PARAMS ((unsigned long, int, char *)); | |
99 | ||
100 | static int ice_lookup_addr PARAMS ((unsigned long *, char *, char *)); | |
101 | ||
102 | static int ice_lookup_symbol PARAMS ((unsigned long, char *)); | |
103 | ||
104 | static void ice_SimulateDisassemble PARAMS ((char *, int)); | |
105 | ||
106 | static void ice_SimulateAddrLookup PARAMS ((char *, int)); | |
107 | ||
108 | static void ice_Simulate_SymLookup PARAMS ((char *, int)); | |
109 | ||
110 | static void ice_fputs PARAMS ((const char *, GDB_FILE *)); | |
111 | ||
112 | static int ice_file PARAMS ((char *)); | |
113 | ||
114 | static int ice_cont PARAMS ((char *)); | |
115 | ||
116 | static int ice_stepi PARAMS ((char *)); | |
117 | ||
118 | static int ice_nexti PARAMS ((char *)); | |
119 | ||
120 | static void togdb_force_update PARAMS ((void)); | |
121 | ||
122 | static void do_gdb (char *, char *, void (*func) PARAMS ((char *, int)), int); | |
123 | ||
124 | ||
125 | /* Globals */ | |
c5aa993b | 126 | static HWND hidden_hwnd; /* HWND for messages */ |
6027a0b8 | 127 | |
c5aa993b | 128 | long (__stdcall * ExeAppReq) PARAMS ((char *, long, char *, struct MessageIO *)); |
6027a0b8 | 129 | |
c5aa993b | 130 | long (__stdcall * RegisterClient) PARAMS ((HWND)); |
6027a0b8 | 131 | |
c5aa993b | 132 | long (__stdcall * UnregisterClient) PARAMS ((void)); |
6027a0b8 JM |
133 | |
134 | ||
135 | /* Globals local to this file only */ | |
c5aa993b | 136 | static int ice_open = 0; /* Is ICE open? */ |
6027a0b8 | 137 | |
c5aa993b | 138 | static char *v850_CB_Result; /* special char array for saving 'callback' results */ |
6027a0b8 | 139 | |
c5aa993b | 140 | static int SimulateCallback; /* simulate a callback event */ |
6027a0b8 | 141 | |
c5aa993b JM |
142 | #define MAX_BLOCK_SIZE 64*1024 /* Cannot transfer memory in blocks bigger |
143 | than this */ | |
6027a0b8 | 144 | /* MDI/ICE Message IDs */ |
c5aa993b JM |
145 | #define GSINGLESTEP 0x200 /* single-step target */ |
146 | #define GRESUME 0x201 /* resume target */ | |
147 | #define GREADREG 0x202 /* read a register */ | |
148 | #define GWRITEREG 0x203 /* write a register */ | |
149 | #define GWRITEBLOCK 0x204 /* write a block of memory */ | |
150 | #define GREADBLOCK 0x205 /* read a block of memory */ | |
151 | #define GSETBREAK 0x206 /* set a breakpoint */ | |
152 | #define GREMOVEBREAK 0x207 /* remove a breakpoint */ | |
153 | #define GHALT 0x208 /* ??? */ | |
154 | #define GCHECKSTATUS 0x209 /* check status of ICE */ | |
155 | #define GMDIREPLY 0x210 /* Reply for previous query - NOT USED */ | |
156 | #define GDOWNLOAD 0x211 /* something for MDI */ | |
157 | #define GCOMMAND 0x212 /* execute command in ice */ | |
158 | #define GLOADFILENAME 0x213 /* retrieve load filename */ | |
159 | #define GWRITEMEM 0x214 /* write word, half-word, or byte */ | |
6027a0b8 JM |
160 | |
161 | /* GCHECKSTATUS return codes: */ | |
162 | #define ICE_Idle 0x00 | |
c5aa993b JM |
163 | #define ICE_Breakpoint 0x01 /* hit a breakpoint */ |
164 | #define ICE_Stepped 0x02 /* have stepped */ | |
165 | #define ICE_Exception 0x03 /* have exception */ | |
166 | #define ICE_Halted 0x04 /* hit a user halt */ | |
167 | #define ICE_Exited 0x05 /* called exit */ | |
168 | #define ICE_Terminated 0x06 /* user terminated */ | |
6027a0b8 JM |
169 | #define ICE_Running 0x07 |
170 | #define ICE_Unknown 0x99 | |
171 | ||
172 | /* Windows messages */ | |
173 | #define WM_STATE_CHANGE WM_USER+101 | |
174 | #define WM_SYM_TO_ADDR WM_USER+102 | |
175 | #define WM_ADDR_TO_SYM WM_USER+103 | |
176 | #define WM_DISASSEMBLY WM_USER+104 | |
177 | #define WM_SOURCE WM_USER+105 | |
178 | ||
179 | /* STATE_CHANGE codes */ | |
c5aa993b JM |
180 | #define STATE_CHANGE_REGS 1 /* Register(s) changed */ |
181 | #define STATE_CHANGE_LOAD 2 /* HW reset */ | |
182 | #define STATE_CHANGE_RESET 3 /* Load new file */ | |
183 | #define STATE_CHANGE_CONT 4 /* Run target */ | |
184 | #define STATE_CHANGE_STOP 5 /* Stop target */ | |
185 | #define STATE_CHANGE_STEPI 6 /* Stepi target */ | |
186 | #define STATE_CHANGE_NEXTI 7 /* Nexti target */ | |
6027a0b8 JM |
187 | |
188 | static struct target_ops v850ice_ops; /* Forward decl */ | |
189 | ||
190 | /* This function creates a hidden window */ | |
191 | static int | |
192 | init_hidden_window () | |
193 | { | |
194 | WNDCLASS class; | |
195 | ||
196 | if (hidden_hwnd != NULL) | |
197 | return 1; | |
198 | ||
199 | class.style = 0; | |
200 | class.cbClsExtra = 0; | |
201 | class.cbWndExtra = 0; | |
202 | class.hInstance = GetModuleHandle (0); | |
203 | class.hbrBackground = NULL; | |
204 | class.lpszMenuName = NULL; | |
205 | class.lpszClassName = "gdb_v850ice"; | |
206 | class.lpfnWndProc = v850ice_wndproc; | |
207 | class.hIcon = NULL; | |
208 | class.hCursor = NULL; | |
209 | ||
c5aa993b | 210 | if (!RegisterClass (&class)) |
6027a0b8 JM |
211 | return 0; |
212 | ||
213 | hidden_hwnd = CreateWindow ("gdb_v850ice", "gdb_v850ice", WS_TILED, | |
c5aa993b JM |
214 | 0, 0, 0, 0, NULL, NULL, class.hInstance, |
215 | NULL); | |
6027a0b8 JM |
216 | if (hidden_hwnd == NULL) |
217 | { | |
218 | char buf[200]; | |
219 | DWORD err; | |
220 | ||
221 | err = GetLastError (); | |
222 | FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM, NULL, err, | |
c5aa993b | 223 | 0, buf, 200, NULL); |
6027a0b8 JM |
224 | printf_unfiltered ("Could not create window: %s", buf); |
225 | return 0; | |
226 | } | |
227 | ||
228 | return 1; | |
229 | } | |
230 | ||
231 | /* | |
232 | This function is installed as the message handler for the hidden window | |
233 | which QBox will use to communicate with gdb. It recognize and acts | |
234 | on the following messages: | |
235 | ||
236 | WM_SYM_TO_ADDR \ | |
237 | WM_ADDR_TO_SYM | Not implemented at NEC's request | |
238 | WM_DISASSEMBLY / | |
239 | WM_STATE_CHANGE - tells us that a state change has occured in the ICE | |
c5aa993b | 240 | */ |
6027a0b8 JM |
241 | static LRESULT CALLBACK |
242 | v850ice_wndproc (hwnd, message, wParam, lParam) | |
243 | HWND hwnd; | |
244 | UINT message; | |
245 | WPARAM wParam; | |
246 | LPARAM lParam; | |
247 | { | |
248 | LRESULT result = FALSE; | |
249 | ||
250 | switch (message) | |
251 | { | |
252 | case WM_SYM_TO_ADDR: | |
253 | MessageBox (0, "Symbol resolution\nNot implemented", "GDB", MB_OK); | |
254 | break; | |
255 | case WM_ADDR_TO_SYM: | |
256 | MessageBox (0, "Address resolution\nNot implemented", "GDB", MB_OK); | |
257 | break; | |
258 | case WM_SOURCE: | |
259 | break; | |
260 | case WM_STATE_CHANGE: | |
261 | switch (wParam) | |
c5aa993b JM |
262 | { |
263 | case STATE_CHANGE_LOAD: | |
264 | { | |
265 | struct MessageIO iob; | |
266 | char buf[128]; | |
267 | ||
268 | iob.buf = buf; | |
269 | iob.size = 128; | |
270 | ||
271 | /* Load in a new file... Need filename */ | |
272 | ExeAppReq ("GDB", GLOADFILENAME, NULL, &iob); | |
273 | if (!catch_errors ((catch_errors_ftype *) ice_file, iob.buf, "", RETURN_MASK_ALL)) | |
274 | printf_unfiltered ("load errored\n"); | |
275 | } | |
276 | break; | |
277 | case STATE_CHANGE_RESET: | |
278 | registers_changed (); | |
279 | flush_cached_frames (); | |
280 | togdb_force_update (); | |
281 | result = TRUE; | |
282 | break; | |
283 | case STATE_CHANGE_REGS: | |
284 | registers_changed (); | |
285 | togdb_force_update (); | |
286 | result = TRUE; | |
287 | break; | |
288 | case STATE_CHANGE_CONT: | |
289 | if (!catch_errors ((catch_errors_ftype *) ice_cont, NULL, "", RETURN_MASK_ALL)) | |
290 | printf_unfiltered ("continue errored\n"); | |
291 | result = TRUE; | |
292 | break; | |
293 | case STATE_CHANGE_STEPI: | |
294 | if (!catch_errors ((catch_errors_ftype *) ice_stepi, (PTR) (int) lParam, "", | |
295 | RETURN_MASK_ALL)) | |
296 | printf_unfiltered ("stepi errored\n"); | |
297 | result = TRUE; | |
298 | break; | |
299 | case STATE_CHANGE_NEXTI: | |
300 | if (!catch_errors ((catch_errors_ftype *) ice_nexti, (PTR) (int) lParam, "", | |
301 | RETURN_MASK_ALL)) | |
302 | printf_unfiltered ("nexti errored\n"); | |
303 | result = TRUE; | |
304 | break; | |
305 | } | |
6027a0b8 JM |
306 | } |
307 | ||
308 | if (result == FALSE) | |
309 | return DefWindowProc (hwnd, message, wParam, lParam); | |
310 | ||
311 | return FALSE; | |
312 | } | |
313 | ||
314 | /* Code for opening a connection to the ICE. */ | |
315 | ||
316 | static void | |
317 | v850ice_open (name, from_tty) | |
318 | char *name; | |
319 | int from_tty; | |
320 | { | |
321 | HINSTANCE handle; | |
322 | ||
323 | if (name) | |
324 | error ("Too many arguments."); | |
325 | ||
326 | target_preopen (from_tty); | |
327 | ||
328 | unpush_target (&v850ice_ops); | |
329 | ||
330 | if (from_tty) | |
331 | puts_filtered ("V850ice debugging\n"); | |
332 | ||
333 | push_target (&v850ice_ops); /* Switch to using v850ice target now */ | |
334 | ||
335 | target_terminal_init (); | |
336 | ||
337 | /* Initialize everything necessary to facilitate communication | |
338 | between QBox, gdb, and the DLLs which control the ICE */ | |
339 | if (ExeAppReq == NULL) | |
340 | { | |
341 | handle = LoadLibrary ("necmsg.dll"); | |
342 | if (handle == NULL) | |
c5aa993b | 343 | error ("Cannot load necmsg.dll"); |
6027a0b8 | 344 | |
c5aa993b JM |
345 | ExeAppReq = (long (*)PARAMS ((char *, long, char *, struct MessageIO *))) |
346 | GetProcAddress (handle, "ExeAppReq"); | |
347 | RegisterClient = (long (*)PARAMS ((HWND))) | |
348 | GetProcAddress (handle, "RegisterClient"); | |
349 | UnregisterClient = (long (*)PARAMS ((void))) | |
350 | GetProcAddress (handle, "UnregisterClient"); | |
6027a0b8 JM |
351 | |
352 | if (ExeAppReq == NULL || RegisterClient == NULL || UnregisterClient == NULL) | |
c5aa993b | 353 | error ("Could not find requisite functions in necmsg.dll."); |
6027a0b8 JM |
354 | |
355 | if (!init_hidden_window ()) | |
c5aa993b | 356 | error ("could not initialize message handling"); |
6027a0b8 JM |
357 | } |
358 | ||
359 | /* Tell the DLL we are here */ | |
360 | RegisterClient (hidden_hwnd); | |
361 | ||
362 | ice_open = 1; | |
363 | ||
364 | /* Without this, some commands which require an active target (such as kill) | |
365 | won't work. This variable serves (at least) double duty as both the pid | |
366 | of the target process (if it has such), and as a flag indicating that a | |
367 | target is active. These functions should be split out into seperate | |
368 | variables, especially since GDB will someday have a notion of debugging | |
369 | several processes. */ | |
370 | inferior_pid = 42000; | |
371 | ||
372 | start_remote (); | |
373 | return; | |
374 | } | |
375 | ||
376 | /* Clean up connection to a remote debugger. */ | |
377 | ||
378 | /* ARGSUSED */ | |
379 | static void | |
380 | v850ice_close (quitting) | |
381 | int quitting; | |
382 | { | |
383 | if (ice_open) | |
384 | { | |
385 | UnregisterClient (); | |
386 | ice_open = 0; | |
387 | inferior_pid = 0; | |
388 | } | |
389 | } | |
390 | ||
391 | /* Stop the process on the ice. */ | |
392 | static void | |
393 | v850ice_stop () | |
394 | { | |
395 | /* This is silly, but it works... */ | |
396 | v850ice_command ("stop", 0); | |
397 | } | |
398 | ||
399 | static void | |
400 | v850ice_detach (args, from_tty) | |
401 | char *args; | |
402 | int from_tty; | |
403 | { | |
404 | if (args) | |
405 | error ("Argument given to \"detach\" when remotely debugging."); | |
406 | ||
407 | pop_target (); | |
408 | if (from_tty) | |
409 | puts_filtered ("Ending v850ice debugging.\n"); | |
410 | } | |
411 | ||
412 | /* Tell the remote machine to resume. */ | |
413 | ||
414 | static void | |
415 | v850ice_resume (pid, step, siggnal) | |
416 | int pid, step; | |
417 | enum target_signal siggnal; | |
418 | { | |
c5aa993b JM |
419 | long retval; |
420 | char buf[256]; | |
421 | struct MessageIO iob; | |
6027a0b8 JM |
422 | |
423 | iob.size = 0; | |
c5aa993b | 424 | iob.buf = buf; |
6027a0b8 JM |
425 | |
426 | if (step) | |
427 | retval = ExeAppReq ("GDB", GSINGLESTEP, "step", &iob); | |
428 | else | |
429 | retval = ExeAppReq ("GDB", GRESUME, "run", &iob); | |
430 | ||
431 | if (retval) | |
432 | error ("ExeAppReq (step = %d) returned %d", step, retval); | |
433 | } | |
434 | ||
435 | /* Wait until the remote machine stops, then return, | |
436 | storing status in STATUS just as `wait' would. | |
437 | Returns "pid" (though it's not clear what, if anything, that | |
438 | means in the case of this target). */ | |
439 | ||
440 | static int | |
441 | v850ice_wait (pid, status) | |
442 | int pid; | |
443 | struct target_waitstatus *status; | |
444 | { | |
445 | long v850_status; | |
446 | char buf[256]; | |
c5aa993b | 447 | struct MessageIO iob; |
6027a0b8 JM |
448 | int done = 0; |
449 | int count = 0; | |
450 | ||
451 | iob.size = 0; | |
c5aa993b JM |
452 | iob.buf = buf; |
453 | ||
6027a0b8 JM |
454 | do |
455 | { | |
456 | if (count++ % 100000) | |
c5aa993b JM |
457 | { |
458 | ui_loop_hook (0); | |
6027a0b8 | 459 | count = 0; |
c5aa993b | 460 | } |
6027a0b8 JM |
461 | |
462 | v850_status = ExeAppReq ("GDB", GCHECKSTATUS, NULL, &iob); | |
463 | ||
464 | switch (v850_status) | |
c5aa993b JM |
465 | { |
466 | case ICE_Idle: | |
467 | case ICE_Breakpoint: | |
468 | case ICE_Stepped: | |
469 | case ICE_Halted: | |
470 | status->kind = TARGET_WAITKIND_STOPPED; | |
471 | status->value.sig = TARGET_SIGNAL_TRAP; | |
472 | done = 1; | |
473 | break; | |
474 | case ICE_Exception: | |
475 | status->kind = TARGET_WAITKIND_SIGNALLED; | |
476 | status->value.sig = TARGET_SIGNAL_SEGV; | |
477 | done = 1; | |
478 | break; | |
479 | case ICE_Exited: | |
480 | status->kind = TARGET_WAITKIND_EXITED; | |
481 | status->value.integer = 0; | |
482 | done = 1; | |
483 | break; | |
484 | case ICE_Terminated: | |
485 | status->kind = TARGET_WAITKIND_SIGNALLED; | |
486 | status->value.sig = TARGET_SIGNAL_KILL; | |
487 | done = 1; | |
488 | break; | |
489 | default: | |
490 | break; | |
491 | } | |
6027a0b8 JM |
492 | } |
493 | while (!done); | |
c5aa993b | 494 | |
6027a0b8 JM |
495 | return inferior_pid; |
496 | } | |
497 | ||
498 | static int | |
499 | convert_register (regno, buf) | |
500 | int regno; | |
501 | char *buf; | |
502 | { | |
503 | if (regno <= 31) | |
504 | sprintf (buf, "r%d", regno); | |
505 | else if (REGISTER_NAME (regno)[0] == 's' | |
506 | && REGISTER_NAME (regno)[1] == 'r') | |
507 | return 0; | |
508 | else | |
509 | sprintf (buf, "%s", REGISTER_NAME (regno)); | |
510 | ||
511 | return 1; | |
512 | } | |
513 | ||
514 | /* Read the remote registers into the block REGS. */ | |
515 | /* Note that the ICE returns register contents as ascii hex strings. We have | |
516 | to convert that to an unsigned long, and then call store_unsigned_integer to | |
517 | convert it to target byte-order if necessary. */ | |
518 | ||
519 | static void | |
520 | v850ice_fetch_registers (regno) | |
521 | int regno; | |
522 | { | |
523 | long retval; | |
524 | char cmd[100]; | |
525 | char val[100]; | |
526 | struct MessageIO iob; | |
527 | unsigned long regval; | |
528 | char *p; | |
529 | ||
530 | if (regno == -1) | |
531 | { | |
532 | for (regno = 0; regno < NUM_REGS; regno++) | |
c5aa993b | 533 | v850ice_fetch_registers (regno); |
6027a0b8 JM |
534 | return; |
535 | } | |
536 | ||
537 | strcpy (cmd, "reg "); | |
538 | if (!convert_register (regno, &cmd[4])) | |
539 | return; | |
540 | ||
541 | iob.size = sizeof val; | |
542 | iob.buf = val; | |
543 | retval = ExeAppReq ("GDB", GREADREG, cmd, &iob); | |
544 | if (retval) | |
545 | error ("1: ExeAppReq returned %d: cmd = %s", retval, cmd); | |
546 | ||
547 | regval = strtoul (val, NULL, 16); | |
548 | if (regval == 0 && p == val) | |
549 | error ("v850ice_fetch_registers (%d): bad value from ICE: %s.", | |
c5aa993b | 550 | regno, val); |
6027a0b8 JM |
551 | |
552 | store_unsigned_integer (val, REGISTER_RAW_SIZE (regno), regval); | |
553 | supply_register (regno, val); | |
554 | } | |
555 | ||
556 | /* Store register REGNO, or all registers if REGNO == -1, from the contents | |
557 | of REGISTERS. */ | |
558 | ||
559 | static void | |
560 | v850ice_store_registers (regno) | |
561 | int regno; | |
562 | { | |
563 | long retval; | |
564 | char cmd[100]; | |
565 | unsigned long regval; | |
566 | char buf[256]; | |
567 | struct MessageIO iob; | |
568 | iob.size = 0; | |
569 | iob.buf = buf; | |
570 | ||
571 | if (regno == -1) | |
572 | { | |
573 | for (regno = 0; regno < NUM_REGS; regno++) | |
574 | v850ice_store_registers (regno); | |
575 | return; | |
576 | } | |
577 | ||
578 | regval = extract_unsigned_integer (®isters[REGISTER_BYTE (regno)], | |
c5aa993b | 579 | REGISTER_RAW_SIZE (regno)); |
6027a0b8 JM |
580 | strcpy (cmd, "reg "); |
581 | if (!convert_register (regno, &cmd[4])) | |
582 | return; | |
583 | sprintf (cmd + strlen (cmd), "=0x%x", regval); | |
584 | ||
585 | retval = ExeAppReq ("GDB", GWRITEREG, cmd, &iob); | |
586 | if (retval) | |
587 | error ("2: ExeAppReq returned %d: cmd = %s", retval, cmd); | |
588 | } | |
589 | ||
590 | /* Prepare to store registers. Nothing to do here, since the ICE can write one | |
591 | register at a time. */ | |
592 | ||
c5aa993b | 593 | static void |
6027a0b8 JM |
594 | v850ice_prepare_to_store () |
595 | { | |
596 | } | |
597 | ||
598 | /* Read or write LEN bytes from inferior memory at MEMADDR, transferring | |
599 | to or from debugger address MYADDR. Write to inferior if SHOULD_WRITE is | |
600 | nonzero. Returns length of data written or read; 0 for error. | |
601 | ||
602 | We can only read/write MAX_BLOCK_SIZE bytes at a time, though, or the DLL | |
603 | dies */ | |
604 | /* ARGSUSED */ | |
605 | static int | |
606 | v850ice_xfer_memory (memaddr, myaddr, len, should_write, target) | |
607 | CORE_ADDR memaddr; | |
608 | char *myaddr; | |
609 | int len; | |
610 | int should_write; | |
c5aa993b | 611 | struct target_ops *target; /* ignored */ |
6027a0b8 JM |
612 | { |
613 | long retval; | |
614 | char cmd[100]; | |
615 | struct MessageIO iob; | |
616 | int sent; | |
617 | ||
618 | if (should_write) | |
619 | { | |
620 | if (len == 4 || len == 2 || len == 1) | |
c5aa993b JM |
621 | { |
622 | long value = 0; | |
623 | char buf[256]; | |
624 | char c; | |
625 | ||
626 | iob.size = 0; | |
627 | iob.buf = buf; | |
628 | ||
629 | sent = 0; | |
630 | switch (len) | |
631 | { | |
632 | case 4: | |
633 | c = 'w'; | |
634 | value |= (long) ((myaddr[3] << 24) & 0xff000000); | |
635 | value |= (long) ((myaddr[2] << 16) & 0x00ff0000); | |
636 | value |= (long) ((myaddr[1] << 8) & 0x0000ff00); | |
637 | value |= (long) (myaddr[0] & 0x000000ff); | |
638 | break; | |
639 | case 2: | |
640 | c = 'h'; | |
641 | value |= (long) ((myaddr[1] << 8) & 0xff00); | |
642 | value |= (long) (myaddr[0] & 0x00ff); | |
6027a0b8 | 643 | break; |
c5aa993b JM |
644 | case 1: |
645 | c = 'b'; | |
646 | value |= (long) (myaddr[0] & 0xff); | |
647 | break; | |
648 | } | |
649 | ||
650 | sprintf (cmd, "memory %c c 0x%x=0x%x", c, (int) memaddr, value); | |
651 | retval = ExeAppReq ("GDB", GWRITEMEM, cmd, &iob); | |
652 | if (retval == 0) | |
653 | sent = len; | |
654 | } | |
655 | else | |
656 | { | |
657 | sent = 0; | |
658 | do | |
659 | { | |
660 | iob.size = len > MAX_BLOCK_SIZE ? MAX_BLOCK_SIZE : len; | |
661 | iob.buf = myaddr; | |
662 | sprintf (cmd, "memory b c 0x%x=0x00 l=%d", (int) memaddr, iob.size); | |
663 | retval = ExeAppReq ("GDB", GWRITEBLOCK, cmd, &iob); | |
664 | if (retval != 0) | |
665 | break; | |
666 | len -= iob.size; | |
667 | memaddr += iob.size; | |
668 | myaddr += iob.size; | |
669 | sent += iob.size; | |
670 | } | |
671 | while (len > 0); | |
672 | } | |
6027a0b8 JM |
673 | } |
674 | else | |
675 | { | |
676 | unsigned char *tmp; | |
677 | unsigned char *t; | |
678 | int i; | |
c5aa993b | 679 | |
6027a0b8 JM |
680 | tmp = alloca (len + 100); |
681 | t = tmp; | |
682 | memset (tmp + len, 0xff, 100); | |
683 | ||
684 | sent = 0; | |
685 | do | |
c5aa993b JM |
686 | { |
687 | iob.size = len > MAX_BLOCK_SIZE ? MAX_BLOCK_SIZE : len; | |
688 | iob.buf = tmp; | |
689 | sprintf (cmd, "memory b 0x%x l=%d", (int) memaddr, iob.size); | |
690 | retval = ExeAppReq ("GDB", GREADBLOCK, cmd, &iob); | |
691 | if (retval != 0) | |
692 | break; | |
693 | len -= iob.size; | |
694 | memaddr += iob.size; | |
695 | sent += iob.size; | |
696 | tmp += iob.size; | |
697 | } | |
6027a0b8 JM |
698 | while (len > 0); |
699 | ||
700 | if (retval == 0) | |
c5aa993b JM |
701 | { |
702 | for (i = 0; i < 100; i++) | |
703 | { | |
704 | if (t[sent + i] != 0xff) | |
705 | { | |
706 | warning ("GREADBLOCK trashed bytes after transfer area."); | |
707 | break; | |
708 | } | |
709 | } | |
710 | memcpy (myaddr, t, sent); | |
711 | } | |
6027a0b8 | 712 | } |
c5aa993b | 713 | |
6027a0b8 JM |
714 | if (retval != 0) |
715 | error ("3: ExeAppReq returned %d: cmd = %s", retval, cmd); | |
c5aa993b | 716 | |
6027a0b8 JM |
717 | return sent; |
718 | } | |
719 | ||
720 | static void | |
721 | v850ice_files_info (ignore) | |
722 | struct target_ops *ignore; | |
723 | { | |
724 | puts_filtered ("Debugging a target via the NEC V850 ICE.\n"); | |
725 | } | |
726 | ||
727 | static int | |
728 | v850ice_insert_breakpoint (addr, contents_cache) | |
729 | CORE_ADDR addr; | |
730 | char *contents_cache; | |
731 | { | |
732 | long retval; | |
733 | char cmd[100]; | |
734 | char buf[256]; | |
735 | struct MessageIO iob; | |
736 | ||
737 | iob.size = 0; | |
c5aa993b | 738 | iob.buf = buf; |
6027a0b8 JM |
739 | sprintf (cmd, "%d, ", addr); |
740 | ||
741 | retval = ExeAppReq ("GDB", GSETBREAK, cmd, &iob); | |
742 | if (retval) | |
743 | error ("ExeAppReq (GSETBREAK) returned %d: cmd = %s", retval, cmd); | |
744 | ||
745 | return 0; | |
746 | } | |
747 | ||
748 | static int | |
749 | v850ice_remove_breakpoint (addr, contents_cache) | |
750 | CORE_ADDR addr; | |
751 | char *contents_cache; | |
752 | { | |
753 | long retval; | |
754 | char cmd[100]; | |
755 | char buf[256]; | |
756 | struct MessageIO iob; | |
757 | ||
758 | iob.size = 0; | |
c5aa993b | 759 | iob.buf = buf; |
6027a0b8 JM |
760 | |
761 | sprintf (cmd, "%d, ", addr); | |
762 | ||
763 | retval = ExeAppReq ("GDB", GREMOVEBREAK, cmd, &iob); | |
764 | if (retval) | |
765 | error ("ExeAppReq (GREMOVEBREAK) returned %d: cmd = %s", retval, cmd); | |
766 | ||
767 | return 0; | |
768 | } | |
769 | ||
770 | static void | |
771 | v850ice_kill () | |
772 | { | |
773 | target_mourn_inferior (); | |
774 | inferior_pid = 0; | |
775 | } | |
776 | ||
777 | static void | |
778 | v850ice_mourn () | |
779 | { | |
780 | } | |
781 | ||
782 | static void | |
783 | v850ice_load (filename, from_tty) | |
c5aa993b JM |
784 | char *filename; |
785 | int from_tty; | |
6027a0b8 JM |
786 | { |
787 | struct MessageIO iob; | |
788 | char buf[256]; | |
789 | ||
790 | iob.size = 0; | |
c5aa993b JM |
791 | iob.buf = buf; |
792 | generic_load (filename, from_tty); | |
6027a0b8 JM |
793 | ExeAppReq ("GDB", GDOWNLOAD, filename, &iob); |
794 | } | |
795 | ||
796 | static int | |
797 | ice_file (arg) | |
798 | char *arg; | |
799 | { | |
800 | char *s; | |
c5aa993b | 801 | |
6027a0b8 JM |
802 | target_detach (NULL, 0); |
803 | pop_target (); | |
804 | ||
805 | printf_unfiltered ("\n"); | |
806 | ||
807 | s = arg; | |
808 | while (*s != '\0') | |
809 | { | |
810 | if (*s == '\\') | |
c5aa993b | 811 | *s = '/'; |
6027a0b8 JM |
812 | s++; |
813 | } | |
814 | ||
815 | /* Safegaurd against confusing the breakpoint routines... */ | |
c5aa993b | 816 | delete_command (NULL, 0); |
6027a0b8 JM |
817 | |
818 | /* Must supress from_tty, otherwise we could start asking if the | |
819 | user really wants to load a new symbol table, etc... */ | |
820 | printf_unfiltered ("Reading symbols from %s...", arg); | |
821 | exec_file_command (arg, 0); | |
822 | symbol_file_command (arg, 0); | |
823 | printf_unfiltered ("done\n"); | |
824 | ||
825 | /* exec_file_command will kill our target, so reinstall the ICE as | |
826 | the target. */ | |
827 | v850ice_open (NULL, 0); | |
828 | ||
829 | togdb_force_update (); | |
830 | return 1; | |
831 | } | |
832 | ||
833 | static int | |
834 | ice_cont (c) | |
c5aa993b | 835 | char *c; |
6027a0b8 JM |
836 | { |
837 | printf_filtered ("continue (ice)\n"); | |
838 | ReplyMessage ((LRESULT) 1); | |
839 | ||
840 | continue_command (NULL, 1); | |
841 | ||
842 | return 1; | |
843 | } | |
844 | ||
845 | static void | |
846 | do_gdb (cmd, str, func, count) | |
847 | char *cmd; | |
848 | char *str; | |
849 | void (*func) PARAMS ((char *, int)); | |
850 | int count; | |
851 | { | |
852 | ReplyMessage ((LRESULT) 1); | |
853 | ||
854 | while (count--) | |
855 | { | |
856 | printf_unfiltered (str); | |
857 | ||
858 | func (NULL, 0); | |
859 | } | |
860 | } | |
861 | ||
862 | ||
863 | static int | |
864 | ice_stepi (c) | |
c5aa993b | 865 | char *c; |
6027a0b8 JM |
866 | { |
867 | int count = (int) c; | |
868 | ||
869 | do_gdb ("gdb_immediate stepi", "stepi (ice)\n", stepi_command, count); | |
870 | return 1; | |
871 | } | |
872 | ||
873 | static int | |
874 | ice_nexti (c) | |
c5aa993b | 875 | char *c; |
6027a0b8 JM |
876 | { |
877 | int count = (int) c; | |
878 | ||
879 | do_gdb ("gdb_immediate nexti", "nexti (ice)\n", nexti_command, count); | |
880 | return 1; | |
881 | } | |
882 | ||
883 | static void | |
884 | v850ice_command (arg, from_tty) | |
c5aa993b JM |
885 | char *arg; |
886 | int from_tty; | |
6027a0b8 JM |
887 | { |
888 | struct MessageIO iob; | |
889 | char buf[256]; | |
890 | ||
891 | iob.buf = buf; | |
892 | iob.size = 0; | |
893 | ExeAppReq ("GDB", GCOMMAND, arg, &iob); | |
894 | } | |
895 | ||
896 | static void | |
897 | togdb_force_update (void) | |
898 | { | |
899 | } | |
900 | ||
901 | ||
902 | /* Define the target subroutine names */ | |
903 | ||
c5aa993b JM |
904 | static void |
905 | init_850ice_ops (void) | |
6027a0b8 | 906 | { |
c5aa993b JM |
907 | v850ice_ops.to_shortname = "ice"; |
908 | v850ice_ops.to_longname = "NEC V850 ICE interface"; | |
909 | v850ice_ops.to_doc = "Debug a system controlled by a NEC 850 ICE."; | |
910 | v850ice_ops.to_open = v850ice_open; | |
911 | v850ice_ops.to_close = v850ice_close; | |
912 | v850ice_ops.to_attach = NULL; | |
913 | v850ice_ops.to_post_attach = NULL; | |
914 | v850ice_ops.to_require_attach = NULL; | |
915 | v850ice_ops.to_detach = v850ice_detach; | |
916 | v850ice_ops.to_require_detach = NULL; | |
917 | v850ice_ops.to_resume = v850ice_resume; | |
918 | v850ice_ops.to_wait = v850ice_wait; | |
919 | v850ice_ops.to_post_wait = NULL; | |
920 | v850ice_ops.to_fetch_registers = v850ice_fetch_registers; | |
921 | v850ice_ops.to_store_registers = v850ice_store_registers; | |
922 | v850ice_ops.to_prepare_to_store = v850ice_prepare_to_store; | |
923 | v850ice_ops.to_xfer_memory = v850ice_xfer_memory; | |
924 | v850ice_ops.to_files_info = v850ice_files_info; | |
925 | v850ice_ops.to_insert_breakpoint = v850ice_insert_breakpoint; | |
926 | v850ice_ops.to_remove_breakpoint = v850ice_remove_breakpoint; | |
927 | v850ice_ops.to_terminal_init = NULL; | |
928 | v850ice_ops.to_terminal_inferior = NULL; | |
929 | v850ice_ops.to_terminal_ours_for_output = NULL; | |
930 | v850ice_ops.to_terminal_ours = NULL; | |
931 | v850ice_ops.to_terminal_info = NULL; | |
932 | v850ice_ops.to_kill = v850ice_kill; | |
933 | v850ice_ops.to_load = v850ice_load; | |
934 | v850ice_ops.to_lookup_symbol = NULL; | |
935 | v850ice_ops.to_create_inferior = NULL; | |
936 | v850ice_ops.to_mourn_inferior = v850ice_mourn; | |
937 | v850ice_ops.to_can_run = 0; | |
938 | v850ice_ops.to_notice_signals = 0; | |
939 | v850ice_ops.to_thread_alive = NULL; | |
940 | v850ice_ops.to_stop = v850ice_stop; | |
6027a0b8 | 941 | v850ice_ops.to_pid_to_exec_file = NULL; |
c5aa993b JM |
942 | v850ice_ops.to_core_file_to_sym_file = NULL; |
943 | v850ice_ops.to_stratum = process_stratum; | |
944 | v850ice_ops.DONT_USE = NULL; | |
945 | v850ice_ops.to_has_all_memory = 1; | |
946 | v850ice_ops.to_has_memory = 1; | |
947 | v850ice_ops.to_has_stack = 1; | |
948 | v850ice_ops.to_has_registers = 1; | |
949 | v850ice_ops.to_has_execution = 1; | |
950 | v850ice_ops.to_sections = NULL; | |
951 | v850ice_ops.to_sections_end = NULL; | |
952 | v850ice_ops.to_magic = OPS_MAGIC; | |
6027a0b8 JM |
953 | } |
954 | ||
955 | void | |
956 | _initialize_v850ice () | |
957 | { | |
958 | init_850ice_ops (); | |
959 | add_target (&v850ice_ops); | |
960 | ||
961 | add_com ("ice", class_obscure, v850ice_command, | |
c5aa993b | 962 | "Send command to ICE"); |
6027a0b8 | 963 | } |