Commit | Line | Data |
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6027a0b8 | 1 | /* ICE interface for the NEC V850 for GDB, the GNU debugger. |
d9fcf2fb | 2 | Copyright 1996, 2000 Free Software Foundation, Inc. |
6027a0b8 | 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 | ||
3fc11d3e | 34 | #include <tcl.h> |
6027a0b8 | 35 | #include <windows.h> |
c5aa993b JM |
36 | #include <winuser.h> /* for WM_USER */ |
37 | ||
38 | extern unsigned long int strtoul (const char *nptr, char **endptr, | |
39 | int base); | |
6027a0b8 | 40 | |
6027a0b8 JM |
41 | /* Local data definitions */ |
42 | struct MessageIO | |
c5aa993b JM |
43 | { |
44 | int size; /* length of input or output in bytes */ | |
45 | char *buf; /* buffer having the input/output information */ | |
46 | }; | |
6027a0b8 JM |
47 | |
48 | /* Prototypes for functions located in other files */ | |
49 | extern void break_command PARAMS ((char *, int)); | |
50 | ||
51 | extern void stepi_command PARAMS ((char *, int)); | |
52 | ||
53 | extern void nexti_command PARAMS ((char *, int)); | |
54 | ||
55 | extern void continue_command PARAMS ((char *, int)); | |
56 | ||
57 | extern int (*ui_loop_hook) PARAMS ((int)); | |
58 | ||
59 | /* Prototypes for local functions */ | |
60 | static int init_hidden_window PARAMS ((void)); | |
61 | ||
62 | static LRESULT CALLBACK v850ice_wndproc PARAMS ((HWND, UINT, WPARAM, LPARAM)); | |
63 | ||
c5aa993b | 64 | static void v850ice_files_info PARAMS ((struct target_ops * ignore)); |
6027a0b8 JM |
65 | |
66 | static int v850ice_xfer_memory PARAMS ((CORE_ADDR memaddr, char *myaddr, | |
67 | int len, int should_write, | |
c5aa993b | 68 | struct target_ops * target)); |
6027a0b8 JM |
69 | |
70 | static void v850ice_prepare_to_store PARAMS ((void)); | |
71 | ||
72 | static void v850ice_fetch_registers PARAMS ((int regno)); | |
73 | ||
74 | static void v850ice_resume PARAMS ((int pid, int step, | |
c5aa993b | 75 | enum target_signal siggnal)); |
6027a0b8 JM |
76 | |
77 | static void v850ice_open PARAMS ((char *name, int from_tty)); | |
78 | ||
79 | static void v850ice_close PARAMS ((int quitting)); | |
80 | ||
81 | static void v850ice_stop PARAMS ((void)); | |
82 | ||
83 | static void v850ice_store_registers PARAMS ((int regno)); | |
84 | ||
85 | static void v850ice_mourn PARAMS ((void)); | |
86 | ||
c5aa993b | 87 | static int v850ice_wait PARAMS ((int pid, struct target_waitstatus * status)); |
6027a0b8 JM |
88 | |
89 | static void v850ice_kill PARAMS ((void)); | |
90 | ||
91 | static void v850ice_detach PARAMS ((char *args, int from_tty)); | |
92 | ||
93 | static int v850ice_insert_breakpoint PARAMS ((CORE_ADDR, char *)); | |
94 | ||
95 | static int v850ice_remove_breakpoint PARAMS ((CORE_ADDR, char *)); | |
96 | ||
97 | static void v850ice_command PARAMS ((char *, int)); | |
98 | ||
99 | static int ice_disassemble PARAMS ((unsigned long, int, char *)); | |
100 | ||
101 | static int ice_lookup_addr PARAMS ((unsigned long *, char *, char *)); | |
102 | ||
103 | static int ice_lookup_symbol PARAMS ((unsigned long, char *)); | |
104 | ||
105 | static void ice_SimulateDisassemble PARAMS ((char *, int)); | |
106 | ||
107 | static void ice_SimulateAddrLookup PARAMS ((char *, int)); | |
108 | ||
109 | static void ice_Simulate_SymLookup PARAMS ((char *, int)); | |
110 | ||
d9fcf2fb | 111 | static void ice_fputs (const char *, struct ui_file *); |
6027a0b8 JM |
112 | |
113 | static int ice_file PARAMS ((char *)); | |
114 | ||
115 | static int ice_cont PARAMS ((char *)); | |
116 | ||
117 | static int ice_stepi PARAMS ((char *)); | |
118 | ||
119 | static int ice_nexti PARAMS ((char *)); | |
120 | ||
121 | static void togdb_force_update PARAMS ((void)); | |
122 | ||
3fc11d3e JM |
123 | static void view_source PARAMS ((CORE_ADDR)); |
124 | ||
6027a0b8 JM |
125 | static void do_gdb (char *, char *, void (*func) PARAMS ((char *, int)), int); |
126 | ||
127 | ||
128 | /* Globals */ | |
c5aa993b | 129 | static HWND hidden_hwnd; /* HWND for messages */ |
6027a0b8 | 130 | |
c5aa993b | 131 | long (__stdcall * ExeAppReq) PARAMS ((char *, long, char *, struct MessageIO *)); |
6027a0b8 | 132 | |
c5aa993b | 133 | long (__stdcall * RegisterClient) PARAMS ((HWND)); |
6027a0b8 | 134 | |
c5aa993b | 135 | long (__stdcall * UnregisterClient) PARAMS ((void)); |
6027a0b8 | 136 | |
3fc11d3e | 137 | extern Tcl_Interp *gdbtk_interp; |
6027a0b8 JM |
138 | |
139 | /* Globals local to this file only */ | |
c5aa993b | 140 | static int ice_open = 0; /* Is ICE open? */ |
6027a0b8 | 141 | |
c5aa993b | 142 | static char *v850_CB_Result; /* special char array for saving 'callback' results */ |
6027a0b8 | 143 | |
c5aa993b | 144 | static int SimulateCallback; /* simulate a callback event */ |
6027a0b8 | 145 | |
c5aa993b JM |
146 | #define MAX_BLOCK_SIZE 64*1024 /* Cannot transfer memory in blocks bigger |
147 | than this */ | |
6027a0b8 | 148 | /* MDI/ICE Message IDs */ |
c5aa993b JM |
149 | #define GSINGLESTEP 0x200 /* single-step target */ |
150 | #define GRESUME 0x201 /* resume target */ | |
151 | #define GREADREG 0x202 /* read a register */ | |
152 | #define GWRITEREG 0x203 /* write a register */ | |
153 | #define GWRITEBLOCK 0x204 /* write a block of memory */ | |
154 | #define GREADBLOCK 0x205 /* read a block of memory */ | |
155 | #define GSETBREAK 0x206 /* set a breakpoint */ | |
156 | #define GREMOVEBREAK 0x207 /* remove a breakpoint */ | |
157 | #define GHALT 0x208 /* ??? */ | |
158 | #define GCHECKSTATUS 0x209 /* check status of ICE */ | |
159 | #define GMDIREPLY 0x210 /* Reply for previous query - NOT USED */ | |
160 | #define GDOWNLOAD 0x211 /* something for MDI */ | |
161 | #define GCOMMAND 0x212 /* execute command in ice */ | |
162 | #define GLOADFILENAME 0x213 /* retrieve load filename */ | |
163 | #define GWRITEMEM 0x214 /* write word, half-word, or byte */ | |
6027a0b8 JM |
164 | |
165 | /* GCHECKSTATUS return codes: */ | |
166 | #define ICE_Idle 0x00 | |
c5aa993b JM |
167 | #define ICE_Breakpoint 0x01 /* hit a breakpoint */ |
168 | #define ICE_Stepped 0x02 /* have stepped */ | |
169 | #define ICE_Exception 0x03 /* have exception */ | |
170 | #define ICE_Halted 0x04 /* hit a user halt */ | |
171 | #define ICE_Exited 0x05 /* called exit */ | |
172 | #define ICE_Terminated 0x06 /* user terminated */ | |
6027a0b8 JM |
173 | #define ICE_Running 0x07 |
174 | #define ICE_Unknown 0x99 | |
175 | ||
176 | /* Windows messages */ | |
177 | #define WM_STATE_CHANGE WM_USER+101 | |
178 | #define WM_SYM_TO_ADDR WM_USER+102 | |
179 | #define WM_ADDR_TO_SYM WM_USER+103 | |
180 | #define WM_DISASSEMBLY WM_USER+104 | |
181 | #define WM_SOURCE WM_USER+105 | |
182 | ||
183 | /* STATE_CHANGE codes */ | |
c5aa993b JM |
184 | #define STATE_CHANGE_REGS 1 /* Register(s) changed */ |
185 | #define STATE_CHANGE_LOAD 2 /* HW reset */ | |
186 | #define STATE_CHANGE_RESET 3 /* Load new file */ | |
187 | #define STATE_CHANGE_CONT 4 /* Run target */ | |
188 | #define STATE_CHANGE_STOP 5 /* Stop target */ | |
189 | #define STATE_CHANGE_STEPI 6 /* Stepi target */ | |
190 | #define STATE_CHANGE_NEXTI 7 /* Nexti target */ | |
6027a0b8 JM |
191 | |
192 | static struct target_ops v850ice_ops; /* Forward decl */ | |
193 | ||
194 | /* This function creates a hidden window */ | |
195 | static int | |
196 | init_hidden_window () | |
197 | { | |
198 | WNDCLASS class; | |
199 | ||
200 | if (hidden_hwnd != NULL) | |
201 | return 1; | |
202 | ||
203 | class.style = 0; | |
204 | class.cbClsExtra = 0; | |
205 | class.cbWndExtra = 0; | |
206 | class.hInstance = GetModuleHandle (0); | |
207 | class.hbrBackground = NULL; | |
208 | class.lpszMenuName = NULL; | |
209 | class.lpszClassName = "gdb_v850ice"; | |
210 | class.lpfnWndProc = v850ice_wndproc; | |
211 | class.hIcon = NULL; | |
212 | class.hCursor = NULL; | |
213 | ||
c5aa993b | 214 | if (!RegisterClass (&class)) |
6027a0b8 JM |
215 | return 0; |
216 | ||
217 | hidden_hwnd = CreateWindow ("gdb_v850ice", "gdb_v850ice", WS_TILED, | |
c5aa993b JM |
218 | 0, 0, 0, 0, NULL, NULL, class.hInstance, |
219 | NULL); | |
6027a0b8 JM |
220 | if (hidden_hwnd == NULL) |
221 | { | |
222 | char buf[200]; | |
223 | DWORD err; | |
224 | ||
225 | err = GetLastError (); | |
226 | FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM, NULL, err, | |
c5aa993b | 227 | 0, buf, 200, NULL); |
6027a0b8 JM |
228 | printf_unfiltered ("Could not create window: %s", buf); |
229 | return 0; | |
230 | } | |
231 | ||
232 | return 1; | |
233 | } | |
234 | ||
235 | /* | |
236 | This function is installed as the message handler for the hidden window | |
237 | which QBox will use to communicate with gdb. It recognize and acts | |
238 | on the following messages: | |
239 | ||
240 | WM_SYM_TO_ADDR \ | |
241 | WM_ADDR_TO_SYM | Not implemented at NEC's request | |
242 | WM_DISASSEMBLY / | |
243 | WM_STATE_CHANGE - tells us that a state change has occured in the ICE | |
c5aa993b | 244 | */ |
6027a0b8 JM |
245 | static LRESULT CALLBACK |
246 | v850ice_wndproc (hwnd, message, wParam, lParam) | |
247 | HWND hwnd; | |
248 | UINT message; | |
249 | WPARAM wParam; | |
250 | LPARAM lParam; | |
251 | { | |
252 | LRESULT result = FALSE; | |
253 | ||
254 | switch (message) | |
255 | { | |
256 | case WM_SYM_TO_ADDR: | |
257 | MessageBox (0, "Symbol resolution\nNot implemented", "GDB", MB_OK); | |
258 | break; | |
259 | case WM_ADDR_TO_SYM: | |
260 | MessageBox (0, "Address resolution\nNot implemented", "GDB", MB_OK); | |
261 | break; | |
262 | case WM_SOURCE: | |
3fc11d3e | 263 | view_source ((CORE_ADDR) lParam); |
6027a0b8 JM |
264 | break; |
265 | case WM_STATE_CHANGE: | |
266 | switch (wParam) | |
c5aa993b JM |
267 | { |
268 | case STATE_CHANGE_LOAD: | |
269 | { | |
270 | struct MessageIO iob; | |
271 | char buf[128]; | |
272 | ||
273 | iob.buf = buf; | |
274 | iob.size = 128; | |
275 | ||
276 | /* Load in a new file... Need filename */ | |
277 | ExeAppReq ("GDB", GLOADFILENAME, NULL, &iob); | |
278 | if (!catch_errors ((catch_errors_ftype *) ice_file, iob.buf, "", RETURN_MASK_ALL)) | |
279 | printf_unfiltered ("load errored\n"); | |
280 | } | |
281 | break; | |
282 | case STATE_CHANGE_RESET: | |
283 | registers_changed (); | |
284 | flush_cached_frames (); | |
285 | togdb_force_update (); | |
286 | result = TRUE; | |
287 | break; | |
288 | case STATE_CHANGE_REGS: | |
289 | registers_changed (); | |
290 | togdb_force_update (); | |
291 | result = TRUE; | |
292 | break; | |
293 | case STATE_CHANGE_CONT: | |
294 | if (!catch_errors ((catch_errors_ftype *) ice_cont, NULL, "", RETURN_MASK_ALL)) | |
295 | printf_unfiltered ("continue errored\n"); | |
296 | result = TRUE; | |
297 | break; | |
298 | case STATE_CHANGE_STEPI: | |
299 | if (!catch_errors ((catch_errors_ftype *) ice_stepi, (PTR) (int) lParam, "", | |
300 | RETURN_MASK_ALL)) | |
301 | printf_unfiltered ("stepi errored\n"); | |
302 | result = TRUE; | |
303 | break; | |
304 | case STATE_CHANGE_NEXTI: | |
305 | if (!catch_errors ((catch_errors_ftype *) ice_nexti, (PTR) (int) lParam, "", | |
306 | RETURN_MASK_ALL)) | |
307 | printf_unfiltered ("nexti errored\n"); | |
308 | result = TRUE; | |
309 | break; | |
310 | } | |
6027a0b8 JM |
311 | } |
312 | ||
313 | if (result == FALSE) | |
314 | return DefWindowProc (hwnd, message, wParam, lParam); | |
315 | ||
316 | return FALSE; | |
317 | } | |
318 | ||
319 | /* Code for opening a connection to the ICE. */ | |
320 | ||
321 | static void | |
322 | v850ice_open (name, from_tty) | |
323 | char *name; | |
324 | int from_tty; | |
325 | { | |
326 | HINSTANCE handle; | |
327 | ||
328 | if (name) | |
329 | error ("Too many arguments."); | |
330 | ||
331 | target_preopen (from_tty); | |
332 | ||
333 | unpush_target (&v850ice_ops); | |
334 | ||
335 | if (from_tty) | |
336 | puts_filtered ("V850ice debugging\n"); | |
337 | ||
338 | push_target (&v850ice_ops); /* Switch to using v850ice target now */ | |
339 | ||
340 | target_terminal_init (); | |
341 | ||
342 | /* Initialize everything necessary to facilitate communication | |
343 | between QBox, gdb, and the DLLs which control the ICE */ | |
344 | if (ExeAppReq == NULL) | |
345 | { | |
346 | handle = LoadLibrary ("necmsg.dll"); | |
347 | if (handle == NULL) | |
c5aa993b | 348 | error ("Cannot load necmsg.dll"); |
6027a0b8 | 349 | |
c5aa993b JM |
350 | ExeAppReq = (long (*)PARAMS ((char *, long, char *, struct MessageIO *))) |
351 | GetProcAddress (handle, "ExeAppReq"); | |
352 | RegisterClient = (long (*)PARAMS ((HWND))) | |
353 | GetProcAddress (handle, "RegisterClient"); | |
354 | UnregisterClient = (long (*)PARAMS ((void))) | |
355 | GetProcAddress (handle, "UnregisterClient"); | |
6027a0b8 JM |
356 | |
357 | if (ExeAppReq == NULL || RegisterClient == NULL || UnregisterClient == NULL) | |
c5aa993b | 358 | error ("Could not find requisite functions in necmsg.dll."); |
6027a0b8 JM |
359 | |
360 | if (!init_hidden_window ()) | |
c5aa993b | 361 | error ("could not initialize message handling"); |
6027a0b8 JM |
362 | } |
363 | ||
364 | /* Tell the DLL we are here */ | |
365 | RegisterClient (hidden_hwnd); | |
366 | ||
367 | ice_open = 1; | |
368 | ||
369 | /* Without this, some commands which require an active target (such as kill) | |
370 | won't work. This variable serves (at least) double duty as both the pid | |
371 | of the target process (if it has such), and as a flag indicating that a | |
372 | target is active. These functions should be split out into seperate | |
373 | variables, especially since GDB will someday have a notion of debugging | |
374 | several processes. */ | |
375 | inferior_pid = 42000; | |
376 | ||
377 | start_remote (); | |
378 | return; | |
379 | } | |
380 | ||
381 | /* Clean up connection to a remote debugger. */ | |
382 | ||
383 | /* ARGSUSED */ | |
384 | static void | |
385 | v850ice_close (quitting) | |
386 | int quitting; | |
387 | { | |
388 | if (ice_open) | |
389 | { | |
390 | UnregisterClient (); | |
391 | ice_open = 0; | |
392 | inferior_pid = 0; | |
393 | } | |
394 | } | |
395 | ||
396 | /* Stop the process on the ice. */ | |
397 | static void | |
398 | v850ice_stop () | |
399 | { | |
400 | /* This is silly, but it works... */ | |
401 | v850ice_command ("stop", 0); | |
402 | } | |
403 | ||
404 | static void | |
405 | v850ice_detach (args, from_tty) | |
406 | char *args; | |
407 | int from_tty; | |
408 | { | |
409 | if (args) | |
410 | error ("Argument given to \"detach\" when remotely debugging."); | |
411 | ||
412 | pop_target (); | |
413 | if (from_tty) | |
414 | puts_filtered ("Ending v850ice debugging.\n"); | |
415 | } | |
416 | ||
417 | /* Tell the remote machine to resume. */ | |
418 | ||
419 | static void | |
420 | v850ice_resume (pid, step, siggnal) | |
421 | int pid, step; | |
422 | enum target_signal siggnal; | |
423 | { | |
c5aa993b JM |
424 | long retval; |
425 | char buf[256]; | |
426 | struct MessageIO iob; | |
6027a0b8 JM |
427 | |
428 | iob.size = 0; | |
c5aa993b | 429 | iob.buf = buf; |
6027a0b8 JM |
430 | |
431 | if (step) | |
432 | retval = ExeAppReq ("GDB", GSINGLESTEP, "step", &iob); | |
433 | else | |
434 | retval = ExeAppReq ("GDB", GRESUME, "run", &iob); | |
435 | ||
436 | if (retval) | |
437 | error ("ExeAppReq (step = %d) returned %d", step, retval); | |
438 | } | |
439 | ||
440 | /* Wait until the remote machine stops, then return, | |
441 | storing status in STATUS just as `wait' would. | |
442 | Returns "pid" (though it's not clear what, if anything, that | |
443 | means in the case of this target). */ | |
444 | ||
445 | static int | |
446 | v850ice_wait (pid, status) | |
447 | int pid; | |
448 | struct target_waitstatus *status; | |
449 | { | |
450 | long v850_status; | |
451 | char buf[256]; | |
c5aa993b | 452 | struct MessageIO iob; |
6027a0b8 JM |
453 | int done = 0; |
454 | int count = 0; | |
455 | ||
456 | iob.size = 0; | |
c5aa993b JM |
457 | iob.buf = buf; |
458 | ||
6027a0b8 JM |
459 | do |
460 | { | |
461 | if (count++ % 100000) | |
c5aa993b JM |
462 | { |
463 | ui_loop_hook (0); | |
6027a0b8 | 464 | count = 0; |
c5aa993b | 465 | } |
6027a0b8 JM |
466 | |
467 | v850_status = ExeAppReq ("GDB", GCHECKSTATUS, NULL, &iob); | |
468 | ||
469 | switch (v850_status) | |
c5aa993b JM |
470 | { |
471 | case ICE_Idle: | |
472 | case ICE_Breakpoint: | |
473 | case ICE_Stepped: | |
474 | case ICE_Halted: | |
475 | status->kind = TARGET_WAITKIND_STOPPED; | |
476 | status->value.sig = TARGET_SIGNAL_TRAP; | |
477 | done = 1; | |
478 | break; | |
479 | case ICE_Exception: | |
480 | status->kind = TARGET_WAITKIND_SIGNALLED; | |
481 | status->value.sig = TARGET_SIGNAL_SEGV; | |
482 | done = 1; | |
483 | break; | |
484 | case ICE_Exited: | |
485 | status->kind = TARGET_WAITKIND_EXITED; | |
486 | status->value.integer = 0; | |
487 | done = 1; | |
488 | break; | |
489 | case ICE_Terminated: | |
490 | status->kind = TARGET_WAITKIND_SIGNALLED; | |
491 | status->value.sig = TARGET_SIGNAL_KILL; | |
492 | done = 1; | |
493 | break; | |
494 | default: | |
495 | break; | |
496 | } | |
6027a0b8 JM |
497 | } |
498 | while (!done); | |
c5aa993b | 499 | |
6027a0b8 JM |
500 | return inferior_pid; |
501 | } | |
502 | ||
503 | static int | |
504 | convert_register (regno, buf) | |
505 | int regno; | |
506 | char *buf; | |
507 | { | |
508 | if (regno <= 31) | |
509 | sprintf (buf, "r%d", regno); | |
510 | else if (REGISTER_NAME (regno)[0] == 's' | |
511 | && REGISTER_NAME (regno)[1] == 'r') | |
512 | return 0; | |
513 | else | |
514 | sprintf (buf, "%s", REGISTER_NAME (regno)); | |
515 | ||
516 | return 1; | |
517 | } | |
518 | ||
519 | /* Read the remote registers into the block REGS. */ | |
520 | /* Note that the ICE returns register contents as ascii hex strings. We have | |
521 | to convert that to an unsigned long, and then call store_unsigned_integer to | |
522 | convert it to target byte-order if necessary. */ | |
523 | ||
524 | static void | |
525 | v850ice_fetch_registers (regno) | |
526 | int regno; | |
527 | { | |
528 | long retval; | |
529 | char cmd[100]; | |
530 | char val[100]; | |
531 | struct MessageIO iob; | |
532 | unsigned long regval; | |
533 | char *p; | |
534 | ||
535 | if (regno == -1) | |
536 | { | |
537 | for (regno = 0; regno < NUM_REGS; regno++) | |
c5aa993b | 538 | v850ice_fetch_registers (regno); |
6027a0b8 JM |
539 | return; |
540 | } | |
541 | ||
542 | strcpy (cmd, "reg "); | |
543 | if (!convert_register (regno, &cmd[4])) | |
544 | return; | |
545 | ||
546 | iob.size = sizeof val; | |
547 | iob.buf = val; | |
548 | retval = ExeAppReq ("GDB", GREADREG, cmd, &iob); | |
549 | if (retval) | |
550 | error ("1: ExeAppReq returned %d: cmd = %s", retval, cmd); | |
551 | ||
552 | regval = strtoul (val, NULL, 16); | |
553 | if (regval == 0 && p == val) | |
554 | error ("v850ice_fetch_registers (%d): bad value from ICE: %s.", | |
c5aa993b | 555 | regno, val); |
6027a0b8 JM |
556 | |
557 | store_unsigned_integer (val, REGISTER_RAW_SIZE (regno), regval); | |
558 | supply_register (regno, val); | |
559 | } | |
560 | ||
561 | /* Store register REGNO, or all registers if REGNO == -1, from the contents | |
562 | of REGISTERS. */ | |
563 | ||
564 | static void | |
565 | v850ice_store_registers (regno) | |
566 | int regno; | |
567 | { | |
568 | long retval; | |
569 | char cmd[100]; | |
570 | unsigned long regval; | |
571 | char buf[256]; | |
572 | struct MessageIO iob; | |
573 | iob.size = 0; | |
574 | iob.buf = buf; | |
575 | ||
576 | if (regno == -1) | |
577 | { | |
578 | for (regno = 0; regno < NUM_REGS; regno++) | |
579 | v850ice_store_registers (regno); | |
580 | return; | |
581 | } | |
582 | ||
583 | regval = extract_unsigned_integer (®isters[REGISTER_BYTE (regno)], | |
c5aa993b | 584 | REGISTER_RAW_SIZE (regno)); |
6027a0b8 JM |
585 | strcpy (cmd, "reg "); |
586 | if (!convert_register (regno, &cmd[4])) | |
587 | return; | |
588 | sprintf (cmd + strlen (cmd), "=0x%x", regval); | |
589 | ||
590 | retval = ExeAppReq ("GDB", GWRITEREG, cmd, &iob); | |
591 | if (retval) | |
592 | error ("2: ExeAppReq returned %d: cmd = %s", retval, cmd); | |
593 | } | |
594 | ||
595 | /* Prepare to store registers. Nothing to do here, since the ICE can write one | |
596 | register at a time. */ | |
597 | ||
c5aa993b | 598 | static void |
6027a0b8 JM |
599 | v850ice_prepare_to_store () |
600 | { | |
601 | } | |
602 | ||
603 | /* Read or write LEN bytes from inferior memory at MEMADDR, transferring | |
604 | to or from debugger address MYADDR. Write to inferior if SHOULD_WRITE is | |
605 | nonzero. Returns length of data written or read; 0 for error. | |
606 | ||
607 | We can only read/write MAX_BLOCK_SIZE bytes at a time, though, or the DLL | |
608 | dies */ | |
609 | /* ARGSUSED */ | |
610 | static int | |
611 | v850ice_xfer_memory (memaddr, myaddr, len, should_write, target) | |
612 | CORE_ADDR memaddr; | |
613 | char *myaddr; | |
614 | int len; | |
615 | int should_write; | |
c5aa993b | 616 | struct target_ops *target; /* ignored */ |
6027a0b8 JM |
617 | { |
618 | long retval; | |
619 | char cmd[100]; | |
620 | struct MessageIO iob; | |
621 | int sent; | |
622 | ||
623 | if (should_write) | |
624 | { | |
625 | if (len == 4 || len == 2 || len == 1) | |
c5aa993b JM |
626 | { |
627 | long value = 0; | |
628 | char buf[256]; | |
629 | char c; | |
630 | ||
631 | iob.size = 0; | |
632 | iob.buf = buf; | |
633 | ||
634 | sent = 0; | |
635 | switch (len) | |
636 | { | |
637 | case 4: | |
638 | c = 'w'; | |
639 | value |= (long) ((myaddr[3] << 24) & 0xff000000); | |
640 | value |= (long) ((myaddr[2] << 16) & 0x00ff0000); | |
641 | value |= (long) ((myaddr[1] << 8) & 0x0000ff00); | |
642 | value |= (long) (myaddr[0] & 0x000000ff); | |
643 | break; | |
644 | case 2: | |
645 | c = 'h'; | |
646 | value |= (long) ((myaddr[1] << 8) & 0xff00); | |
647 | value |= (long) (myaddr[0] & 0x00ff); | |
6027a0b8 | 648 | break; |
c5aa993b JM |
649 | case 1: |
650 | c = 'b'; | |
651 | value |= (long) (myaddr[0] & 0xff); | |
652 | break; | |
653 | } | |
654 | ||
655 | sprintf (cmd, "memory %c c 0x%x=0x%x", c, (int) memaddr, value); | |
656 | retval = ExeAppReq ("GDB", GWRITEMEM, cmd, &iob); | |
657 | if (retval == 0) | |
658 | sent = len; | |
659 | } | |
660 | else | |
661 | { | |
662 | sent = 0; | |
663 | do | |
664 | { | |
665 | iob.size = len > MAX_BLOCK_SIZE ? MAX_BLOCK_SIZE : len; | |
666 | iob.buf = myaddr; | |
667 | sprintf (cmd, "memory b c 0x%x=0x00 l=%d", (int) memaddr, iob.size); | |
668 | retval = ExeAppReq ("GDB", GWRITEBLOCK, cmd, &iob); | |
669 | if (retval != 0) | |
670 | break; | |
671 | len -= iob.size; | |
672 | memaddr += iob.size; | |
673 | myaddr += iob.size; | |
674 | sent += iob.size; | |
675 | } | |
676 | while (len > 0); | |
677 | } | |
6027a0b8 JM |
678 | } |
679 | else | |
680 | { | |
681 | unsigned char *tmp; | |
682 | unsigned char *t; | |
683 | int i; | |
c5aa993b | 684 | |
6027a0b8 JM |
685 | tmp = alloca (len + 100); |
686 | t = tmp; | |
687 | memset (tmp + len, 0xff, 100); | |
688 | ||
689 | sent = 0; | |
690 | do | |
c5aa993b JM |
691 | { |
692 | iob.size = len > MAX_BLOCK_SIZE ? MAX_BLOCK_SIZE : len; | |
693 | iob.buf = tmp; | |
694 | sprintf (cmd, "memory b 0x%x l=%d", (int) memaddr, iob.size); | |
695 | retval = ExeAppReq ("GDB", GREADBLOCK, cmd, &iob); | |
696 | if (retval != 0) | |
697 | break; | |
698 | len -= iob.size; | |
699 | memaddr += iob.size; | |
700 | sent += iob.size; | |
701 | tmp += iob.size; | |
702 | } | |
6027a0b8 JM |
703 | while (len > 0); |
704 | ||
705 | if (retval == 0) | |
c5aa993b JM |
706 | { |
707 | for (i = 0; i < 100; i++) | |
708 | { | |
709 | if (t[sent + i] != 0xff) | |
710 | { | |
711 | warning ("GREADBLOCK trashed bytes after transfer area."); | |
712 | break; | |
713 | } | |
714 | } | |
715 | memcpy (myaddr, t, sent); | |
716 | } | |
6027a0b8 | 717 | } |
c5aa993b | 718 | |
6027a0b8 JM |
719 | if (retval != 0) |
720 | error ("3: ExeAppReq returned %d: cmd = %s", retval, cmd); | |
c5aa993b | 721 | |
6027a0b8 JM |
722 | return sent; |
723 | } | |
724 | ||
725 | static void | |
726 | v850ice_files_info (ignore) | |
727 | struct target_ops *ignore; | |
728 | { | |
729 | puts_filtered ("Debugging a target via the NEC V850 ICE.\n"); | |
730 | } | |
731 | ||
732 | static int | |
733 | v850ice_insert_breakpoint (addr, contents_cache) | |
734 | CORE_ADDR addr; | |
735 | char *contents_cache; | |
736 | { | |
737 | long retval; | |
738 | char cmd[100]; | |
739 | char buf[256]; | |
740 | struct MessageIO iob; | |
741 | ||
742 | iob.size = 0; | |
c5aa993b | 743 | iob.buf = buf; |
6027a0b8 JM |
744 | sprintf (cmd, "%d, ", addr); |
745 | ||
746 | retval = ExeAppReq ("GDB", GSETBREAK, cmd, &iob); | |
747 | if (retval) | |
748 | error ("ExeAppReq (GSETBREAK) returned %d: cmd = %s", retval, cmd); | |
749 | ||
750 | return 0; | |
751 | } | |
752 | ||
753 | static int | |
754 | v850ice_remove_breakpoint (addr, contents_cache) | |
755 | CORE_ADDR addr; | |
756 | char *contents_cache; | |
757 | { | |
758 | long retval; | |
759 | char cmd[100]; | |
760 | char buf[256]; | |
761 | struct MessageIO iob; | |
762 | ||
763 | iob.size = 0; | |
c5aa993b | 764 | iob.buf = buf; |
6027a0b8 JM |
765 | |
766 | sprintf (cmd, "%d, ", addr); | |
767 | ||
768 | retval = ExeAppReq ("GDB", GREMOVEBREAK, cmd, &iob); | |
769 | if (retval) | |
770 | error ("ExeAppReq (GREMOVEBREAK) returned %d: cmd = %s", retval, cmd); | |
771 | ||
772 | return 0; | |
773 | } | |
774 | ||
775 | static void | |
776 | v850ice_kill () | |
777 | { | |
778 | target_mourn_inferior (); | |
779 | inferior_pid = 0; | |
780 | } | |
781 | ||
782 | static void | |
783 | v850ice_mourn () | |
784 | { | |
785 | } | |
786 | ||
787 | static void | |
788 | v850ice_load (filename, from_tty) | |
c5aa993b JM |
789 | char *filename; |
790 | int from_tty; | |
6027a0b8 JM |
791 | { |
792 | struct MessageIO iob; | |
793 | char buf[256]; | |
794 | ||
795 | iob.size = 0; | |
c5aa993b JM |
796 | iob.buf = buf; |
797 | generic_load (filename, from_tty); | |
6027a0b8 JM |
798 | ExeAppReq ("GDB", GDOWNLOAD, filename, &iob); |
799 | } | |
800 | ||
801 | static int | |
802 | ice_file (arg) | |
803 | char *arg; | |
804 | { | |
805 | char *s; | |
c5aa993b | 806 | |
6027a0b8 JM |
807 | target_detach (NULL, 0); |
808 | pop_target (); | |
809 | ||
810 | printf_unfiltered ("\n"); | |
811 | ||
812 | s = arg; | |
813 | while (*s != '\0') | |
814 | { | |
815 | if (*s == '\\') | |
c5aa993b | 816 | *s = '/'; |
6027a0b8 JM |
817 | s++; |
818 | } | |
819 | ||
820 | /* Safegaurd against confusing the breakpoint routines... */ | |
c5aa993b | 821 | delete_command (NULL, 0); |
6027a0b8 JM |
822 | |
823 | /* Must supress from_tty, otherwise we could start asking if the | |
824 | user really wants to load a new symbol table, etc... */ | |
825 | printf_unfiltered ("Reading symbols from %s...", arg); | |
826 | exec_file_command (arg, 0); | |
827 | symbol_file_command (arg, 0); | |
828 | printf_unfiltered ("done\n"); | |
829 | ||
830 | /* exec_file_command will kill our target, so reinstall the ICE as | |
831 | the target. */ | |
832 | v850ice_open (NULL, 0); | |
833 | ||
834 | togdb_force_update (); | |
835 | return 1; | |
836 | } | |
837 | ||
838 | static int | |
839 | ice_cont (c) | |
c5aa993b | 840 | char *c; |
6027a0b8 JM |
841 | { |
842 | printf_filtered ("continue (ice)\n"); | |
843 | ReplyMessage ((LRESULT) 1); | |
844 | ||
3fc11d3e JM |
845 | if (gdbtk_interp == NULL) |
846 | { | |
6027a0b8 | 847 | continue_command (NULL, 1); |
3fc11d3e JM |
848 | } |
849 | else | |
850 | Tcl_Eval (gdbtk_interp, "gdb_immediate continue"); | |
6027a0b8 JM |
851 | |
852 | return 1; | |
853 | } | |
854 | ||
855 | static void | |
856 | do_gdb (cmd, str, func, count) | |
857 | char *cmd; | |
858 | char *str; | |
859 | void (*func) PARAMS ((char *, int)); | |
860 | int count; | |
861 | { | |
862 | ReplyMessage ((LRESULT) 1); | |
863 | ||
864 | while (count--) | |
865 | { | |
866 | printf_unfiltered (str); | |
867 | ||
3fc11d3e JM |
868 | if (gdbtk_interp == NULL) |
869 | { | |
6027a0b8 | 870 | func (NULL, 0); |
3fc11d3e JM |
871 | } |
872 | else | |
873 | Tcl_Eval (gdbtk_interp, cmd); | |
6027a0b8 JM |
874 | } |
875 | } | |
876 | ||
877 | ||
878 | static int | |
879 | ice_stepi (c) | |
c5aa993b | 880 | char *c; |
6027a0b8 JM |
881 | { |
882 | int count = (int) c; | |
883 | ||
884 | do_gdb ("gdb_immediate stepi", "stepi (ice)\n", stepi_command, count); | |
885 | return 1; | |
886 | } | |
887 | ||
888 | static int | |
889 | ice_nexti (c) | |
c5aa993b | 890 | char *c; |
6027a0b8 JM |
891 | { |
892 | int count = (int) c; | |
893 | ||
894 | do_gdb ("gdb_immediate nexti", "nexti (ice)\n", nexti_command, count); | |
895 | return 1; | |
896 | } | |
897 | ||
898 | static void | |
899 | v850ice_command (arg, from_tty) | |
c5aa993b JM |
900 | char *arg; |
901 | int from_tty; | |
6027a0b8 JM |
902 | { |
903 | struct MessageIO iob; | |
904 | char buf[256]; | |
905 | ||
906 | iob.buf = buf; | |
907 | iob.size = 0; | |
908 | ExeAppReq ("GDB", GCOMMAND, arg, &iob); | |
909 | } | |
910 | ||
911 | static void | |
912 | togdb_force_update (void) | |
913 | { | |
3fc11d3e JM |
914 | if (gdbtk_interp != NULL) |
915 | Tcl_Eval (gdbtk_interp, "gdbtk_update"); | |
6027a0b8 JM |
916 | } |
917 | ||
3fc11d3e JM |
918 | static void |
919 | view_source (addr) | |
920 | CORE_ADDR addr; | |
921 | { | |
922 | char c[256]; | |
923 | ||
924 | if (gdbtk_interp != NULL) | |
925 | { | |
926 | sprintf (c, "catch {set src [lindex [ManagedWin::find SrcWin] 0]\n$src location BROWSE [gdb_loc *0x%x]}", addr); | |
927 | Tcl_Eval (gdbtk_interp, c); | |
928 | } | |
929 | } | |
6027a0b8 JM |
930 | |
931 | /* Define the target subroutine names */ | |
932 | ||
c5aa993b JM |
933 | static void |
934 | init_850ice_ops (void) | |
6027a0b8 | 935 | { |
c5aa993b JM |
936 | v850ice_ops.to_shortname = "ice"; |
937 | v850ice_ops.to_longname = "NEC V850 ICE interface"; | |
938 | v850ice_ops.to_doc = "Debug a system controlled by a NEC 850 ICE."; | |
939 | v850ice_ops.to_open = v850ice_open; | |
940 | v850ice_ops.to_close = v850ice_close; | |
941 | v850ice_ops.to_attach = NULL; | |
942 | v850ice_ops.to_post_attach = NULL; | |
943 | v850ice_ops.to_require_attach = NULL; | |
944 | v850ice_ops.to_detach = v850ice_detach; | |
945 | v850ice_ops.to_require_detach = NULL; | |
946 | v850ice_ops.to_resume = v850ice_resume; | |
947 | v850ice_ops.to_wait = v850ice_wait; | |
948 | v850ice_ops.to_post_wait = NULL; | |
949 | v850ice_ops.to_fetch_registers = v850ice_fetch_registers; | |
950 | v850ice_ops.to_store_registers = v850ice_store_registers; | |
951 | v850ice_ops.to_prepare_to_store = v850ice_prepare_to_store; | |
952 | v850ice_ops.to_xfer_memory = v850ice_xfer_memory; | |
953 | v850ice_ops.to_files_info = v850ice_files_info; | |
954 | v850ice_ops.to_insert_breakpoint = v850ice_insert_breakpoint; | |
955 | v850ice_ops.to_remove_breakpoint = v850ice_remove_breakpoint; | |
956 | v850ice_ops.to_terminal_init = NULL; | |
957 | v850ice_ops.to_terminal_inferior = NULL; | |
958 | v850ice_ops.to_terminal_ours_for_output = NULL; | |
959 | v850ice_ops.to_terminal_ours = NULL; | |
960 | v850ice_ops.to_terminal_info = NULL; | |
961 | v850ice_ops.to_kill = v850ice_kill; | |
962 | v850ice_ops.to_load = v850ice_load; | |
963 | v850ice_ops.to_lookup_symbol = NULL; | |
964 | v850ice_ops.to_create_inferior = NULL; | |
965 | v850ice_ops.to_mourn_inferior = v850ice_mourn; | |
966 | v850ice_ops.to_can_run = 0; | |
967 | v850ice_ops.to_notice_signals = 0; | |
968 | v850ice_ops.to_thread_alive = NULL; | |
969 | v850ice_ops.to_stop = v850ice_stop; | |
6027a0b8 | 970 | v850ice_ops.to_pid_to_exec_file = NULL; |
c5aa993b JM |
971 | v850ice_ops.to_core_file_to_sym_file = NULL; |
972 | v850ice_ops.to_stratum = process_stratum; | |
973 | v850ice_ops.DONT_USE = NULL; | |
974 | v850ice_ops.to_has_all_memory = 1; | |
975 | v850ice_ops.to_has_memory = 1; | |
976 | v850ice_ops.to_has_stack = 1; | |
977 | v850ice_ops.to_has_registers = 1; | |
978 | v850ice_ops.to_has_execution = 1; | |
979 | v850ice_ops.to_sections = NULL; | |
980 | v850ice_ops.to_sections_end = NULL; | |
981 | v850ice_ops.to_magic = OPS_MAGIC; | |
6027a0b8 JM |
982 | } |
983 | ||
984 | void | |
985 | _initialize_v850ice () | |
986 | { | |
987 | init_850ice_ops (); | |
988 | add_target (&v850ice_ops); | |
989 | ||
990 | add_com ("ice", class_obscure, v850ice_command, | |
c5aa993b | 991 | "Send command to ICE"); |
6027a0b8 | 992 | } |