Commit | Line | Data |
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6c310da8 SG |
1 | /* ICE interface for the NEC V850 for GDB, the GNU debugger. |
2 | Copyright 1996, Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of GDB. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
4ef1f467 | 7 | it under the terms of the GNU General Public License as published by |
6c310da8 SG |
8 | the Free Software Foundation; either version 2 of the License, or |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
19 | ||
20 | #include "defs.h" | |
21 | #include "gdb_string.h" | |
6c310da8 | 22 | #include "frame.h" |
e3ca310c | 23 | #include "symtab.h" |
6c310da8 | 24 | #include "inferior.h" |
e3ca310c | 25 | #include "breakpoint.h" |
6c310da8 SG |
26 | #include "symfile.h" |
27 | #include "target.h" | |
6c310da8 | 28 | #include "objfiles.h" |
e3ca310c KS |
29 | #include "gdbcore.h" |
30 | #include "value.h" | |
31 | #include "command.h" | |
32 | ||
33 | #include <tcl.h> | |
34 | #include <tk.h> | |
35 | #include <windows.h> | |
36 | #include <winuser.h> /* for WM_USER */ | |
37 | ||
38 | extern unsigned long int strtoul(const char *nptr, char **endptr, | |
39 | int base); | |
40 | ||
41 | /* Local data definitions */ | |
42 | struct MessageIO | |
43 | { | |
44 | int size; /* length of input or output in bytes */ | |
45 | char * buf; /* buffer having the input/output information */ | |
46 | }; | |
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 HINSTANCE Tk_GetHINSTANCE PARAMS ((void)); | |
6c310da8 | 58 | |
4ce8d0e9 KS |
59 | extern void (*ui_loop_hook) PARAMS ((int)); |
60 | ||
6c310da8 | 61 | /* Prototypes for local functions */ |
e3ca310c KS |
62 | static int init_hidden_window PARAMS ((void)); |
63 | ||
64 | static LRESULT CALLBACK v850ice_wndproc PARAMS ((HWND, UINT, WPARAM, LPARAM)); | |
6c310da8 SG |
65 | |
66 | static void v850ice_files_info PARAMS ((struct target_ops *ignore)); | |
67 | ||
68 | static int v850ice_xfer_memory PARAMS ((CORE_ADDR memaddr, char *myaddr, | |
69 | int len, int should_write, | |
70 | struct target_ops *target)); | |
71 | ||
72 | static void v850ice_prepare_to_store PARAMS ((void)); | |
73 | ||
74 | static void v850ice_fetch_registers PARAMS ((int regno)); | |
75 | ||
76 | static void v850ice_resume PARAMS ((int pid, int step, | |
77 | enum target_signal siggnal)); | |
78 | ||
79 | static void v850ice_open PARAMS ((char *name, int from_tty)); | |
80 | ||
81 | static void v850ice_close PARAMS ((int quitting)); | |
82 | ||
67205639 KS |
83 | static void v850ice_stop PARAMS ((void)); |
84 | ||
6c310da8 SG |
85 | static void v850ice_store_registers PARAMS ((int regno)); |
86 | ||
87 | static void v850ice_mourn PARAMS ((void)); | |
88 | ||
89 | static int v850ice_wait PARAMS ((int pid, struct target_waitstatus *status)); | |
90 | ||
91 | static void v850ice_kill PARAMS ((void)); | |
92 | ||
93 | static void v850ice_detach PARAMS ((char *args, int from_tty)); | |
94 | ||
95 | static int v850ice_insert_breakpoint PARAMS ((CORE_ADDR, char *)); | |
96 | ||
97 | static int v850ice_remove_breakpoint PARAMS ((CORE_ADDR, char *)); | |
98 | ||
e3ca310c | 99 | static void v850ice_command PARAMS ((char *, int)); |
6c310da8 | 100 | |
e3ca310c | 101 | static int ice_disassemble PARAMS ((unsigned long, int, char *)); |
c719b714 | 102 | |
e3ca310c | 103 | static int ice_lookup_addr PARAMS ((unsigned long *, char *, char *)); |
6c310da8 | 104 | |
e3ca310c KS |
105 | static int ice_lookup_symbol PARAMS ((unsigned long, char *)); |
106 | ||
107 | static void ice_SimulateDisassemble PARAMS ((char *, int)); | |
108 | ||
109 | static void ice_SimulateAddrLookup PARAMS ((char *, int)); | |
110 | ||
111 | static void ice_Simulate_SymLookup PARAMS ((char *, int)); | |
112 | ||
113 | static void ice_fputs PARAMS ((const char *, GDB_FILE *)); | |
114 | ||
115 | static int ice_file PARAMS ((char *)); | |
116 | ||
117 | static int ice_cont PARAMS ((char *)); | |
118 | ||
119 | static int ice_stepi PARAMS ((char *)); | |
120 | ||
121 | static int ice_nexti PARAMS ((char *)); | |
122 | ||
123 | static void togdb_force_update PARAMS ((void)); | |
124 | ||
4ce8d0e9 KS |
125 | static void view_source PARAMS ((CORE_ADDR)); |
126 | ||
badb1b51 KS |
127 | static void do_gdb (char *, char *, int); |
128 | ||
129 | ||
e3ca310c KS |
130 | /* Globals */ |
131 | static HWND hidden_hwnd; /* HWND for messages */ | |
132 | ||
133 | long (__stdcall *ExeAppReq) PARAMS ((char *, long, char *, struct MessageIO *)); | |
134 | ||
135 | long (__stdcall *RegisterClient) PARAMS ((HWND)); | |
136 | ||
137 | long (__stdcall *UnregisterClient) PARAMS ((void)); | |
138 | ||
139 | extern Tcl_Interp *gdbtk_interp; | |
140 | ||
141 | /* Globals local to this file only */ | |
142 | static int ice_open = 0; /* Is ICE open? */ | |
143 | ||
144 | static char * v850_CB_Result; /* special char array for saving 'callback' results */ | |
145 | ||
146 | static int SimulateCallback; /* simulate a callback event */ | |
147 | ||
148 | #define MAX_BLOCK_SIZE 64*1024 /* Cannot transfer memory in blocks bigger | |
149 | than this */ | |
150 | /* MDI/ICE Message IDs */ | |
151 | #define GSINGLESTEP 0x200 /* single-step target */ | |
152 | #define GRESUME 0x201 /* resume target */ | |
153 | #define GREADREG 0x202 /* read a register */ | |
154 | #define GWRITEREG 0x203 /* write a register */ | |
155 | #define GWRITEBLOCK 0x204 /* write a block of memory */ | |
156 | #define GREADBLOCK 0x205 /* read a block of memory */ | |
157 | #define GSETBREAK 0x206 /* set a breakpoint */ | |
158 | #define GREMOVEBREAK 0x207 /* remove a breakpoint */ | |
159 | #define GHALT 0x208 /* ??? */ | |
160 | #define GCHECKSTATUS 0x209 /* check status of ICE */ | |
161 | #define GMDIREPLY 0x210 /* Reply for previous query - NOT USED */ | |
162 | #define GDOWNLOAD 0x211 /* something for MDI */ | |
163 | #define GCOMMAND 0x212 /* execute command in ice */ | |
164 | #define GLOADFILENAME 0x213 /* retrieve load filename */ | |
165 | #define GWRITEMEM 0x214 /* write word, half-word, or byte */ | |
166 | ||
167 | /* GCHECKSTATUS return codes: */ | |
168 | #define ICE_Idle 0x00 | |
169 | #define ICE_Breakpoint 0x01 /* hit a breakpoint */ | |
170 | #define ICE_Stepped 0x02 /* have stepped */ | |
171 | #define ICE_Exception 0x03 /* have exception */ | |
172 | #define ICE_Halted 0x04 /* hit a user halt */ | |
173 | #define ICE_Exited 0x05 /* called exit */ | |
174 | #define ICE_Terminated 0x06 /* user terminated */ | |
175 | #define ICE_Running 0x07 | |
176 | #define ICE_Unknown 0x99 | |
177 | ||
178 | /* Windows messages */ | |
179 | #define WM_STATE_CHANGE WM_USER+101 | |
180 | #define WM_SYM_TO_ADDR WM_USER+102 | |
181 | #define WM_ADDR_TO_SYM WM_USER+103 | |
182 | #define WM_DISASSEMBLY WM_USER+104 | |
4ce8d0e9 | 183 | #define WM_SOURCE WM_USER+105 |
e3ca310c KS |
184 | |
185 | /* STATE_CHANGE codes */ | |
186 | #define STATE_CHANGE_REGS 1 /* Register(s) changed */ | |
187 | #define STATE_CHANGE_LOAD 2 /* HW reset */ | |
188 | #define STATE_CHANGE_RESET 3 /* Load new file */ | |
189 | #define STATE_CHANGE_CONT 4 /* Run target */ | |
190 | #define STATE_CHANGE_STOP 5 /* Stop target */ | |
191 | #define STATE_CHANGE_STEPI 6 /* Stepi target */ | |
192 | #define STATE_CHANGE_NEXTI 7 /* Nexti target */ | |
193 | ||
194 | static struct target_ops v850ice_ops; /* Forward decl */ | |
195 | ||
196 | /* This function creates a hidden window */ | |
197 | static int | |
198 | init_hidden_window () | |
264b9de0 | 199 | { |
e3ca310c KS |
200 | WNDCLASS class; |
201 | ||
202 | if (hidden_hwnd != NULL) | |
203 | return TCL_OK; | |
204 | ||
205 | class.style = 0; | |
206 | class.cbClsExtra = 0; | |
207 | class.cbWndExtra = 0; | |
208 | class.hInstance = Tk_GetHINSTANCE(); | |
209 | class.hbrBackground = NULL; | |
210 | class.lpszMenuName = NULL; | |
211 | class.lpszClassName = "gdbtk_v850ice"; | |
212 | class.lpfnWndProc = v850ice_wndproc; | |
213 | class.hIcon = NULL; | |
214 | class.hCursor = NULL; | |
215 | ||
216 | if (! RegisterClass (&class)) | |
217 | return TCL_ERROR; | |
218 | ||
219 | hidden_hwnd = CreateWindow ("gdbtk_v850ice", "gdbtk_v850ice", WS_TILED, | |
220 | 0, 0, 0, 0, NULL, NULL, class.hInstance, | |
221 | NULL); | |
222 | if (hidden_hwnd == NULL) | |
223 | { | |
224 | char buf[200]; | |
225 | DWORD err; | |
226 | ||
227 | err = GetLastError (); | |
228 | FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM, NULL, err, | |
229 | 0, buf, 200, NULL); | |
230 | printf_unfiltered ("Could not create window: %s", buf); | |
231 | return TCL_ERROR; | |
232 | } | |
233 | ||
234 | return TCL_OK; | |
235 | } | |
236 | ||
237 | /* | |
238 | This function is installed as the message handler for the hidden window | |
239 | which QBox will use to communicate with gdbtk. It recognize and acts | |
240 | on the following messages: | |
241 | ||
242 | WM_SYM_TO_ADDR \ | |
243 | WM_ADDR_TO_SYM | Not implemented at NEC's request | |
244 | WM_DISASSEMBLY / | |
245 | WM_STATE_CHANGE - tells us that a state change has occured in the ICE | |
246 | */ | |
247 | static LRESULT CALLBACK | |
248 | v850ice_wndproc (hwnd, message, wParam, lParam) | |
249 | HWND hwnd; | |
250 | UINT message; | |
251 | WPARAM wParam; | |
252 | LPARAM lParam; | |
253 | { | |
254 | LRESULT result = FALSE; | |
255 | ||
256 | switch (message) | |
257 | { | |
258 | case WM_SYM_TO_ADDR: | |
259 | MessageBox (0, "Symbol resolution\nNot implemented", "GDB", MB_OK); | |
260 | break; | |
261 | case WM_ADDR_TO_SYM: | |
262 | MessageBox (0, "Address resolution\nNot implemented", "GDB", MB_OK); | |
263 | break; | |
4ce8d0e9 KS |
264 | case WM_SOURCE: |
265 | view_source ((CORE_ADDR) lParam); | |
266 | break; | |
e3ca310c KS |
267 | case WM_STATE_CHANGE: |
268 | switch (wParam) | |
269 | { | |
270 | case STATE_CHANGE_LOAD: | |
271 | { | |
272 | struct MessageIO iob; | |
273 | char buf[128]; | |
274 | ||
275 | iob.buf = buf; | |
276 | iob.size = 128; | |
277 | ||
278 | /* Load in a new file... Need filename */ | |
279 | ExeAppReq ("GDB", GLOADFILENAME, NULL, &iob); | |
280 | if (!catch_errors (ice_file, iob.buf, "", RETURN_MASK_ALL)) | |
281 | printf_unfiltered ("load errored\n"); | |
282 | } | |
283 | break; | |
284 | case STATE_CHANGE_RESET: | |
285 | registers_changed (); | |
286 | flush_cached_frames (); | |
287 | togdb_force_update (); | |
288 | result = TRUE; | |
289 | break; | |
290 | case STATE_CHANGE_REGS: | |
291 | registers_changed (); | |
292 | togdb_force_update (); | |
293 | result = TRUE; | |
294 | break; | |
295 | case STATE_CHANGE_CONT: | |
296 | if (!catch_errors (ice_cont, NULL, "", RETURN_MASK_ALL)) | |
297 | printf_unfiltered ("continue errored\n"); | |
298 | result = TRUE; | |
299 | break; | |
300 | case STATE_CHANGE_STEPI: | |
301 | if (!catch_errors (ice_stepi, (PTR)(int) lParam, "", | |
302 | RETURN_MASK_ALL)) | |
303 | printf_unfiltered ("stepi errored\n"); | |
304 | result = TRUE; | |
305 | break; | |
306 | case STATE_CHANGE_NEXTI: | |
307 | if (!catch_errors (ice_nexti, (PTR)(int) lParam, "", | |
308 | RETURN_MASK_ALL)) | |
309 | printf_unfiltered ("nexti errored\n"); | |
310 | result = TRUE; | |
311 | break; | |
312 | } | |
313 | } | |
264b9de0 | 314 | |
e3ca310c KS |
315 | if (result == FALSE) |
316 | return DefWindowProc (hwnd, message, wParam, lParam); | |
317 | ||
318 | return FALSE; | |
319 | } | |
6c310da8 SG |
320 | |
321 | /* Code for opening a connection to the ICE. */ | |
322 | ||
323 | static void | |
324 | v850ice_open (name, from_tty) | |
325 | char *name; | |
326 | int from_tty; | |
327 | { | |
e3ca310c | 328 | HINSTANCE handle; |
6c310da8 SG |
329 | |
330 | if (name) | |
331 | error ("Too many arguments."); | |
332 | ||
333 | target_preopen (from_tty); | |
334 | ||
335 | unpush_target (&v850ice_ops); | |
336 | ||
337 | if (from_tty) | |
338 | puts_filtered ("V850ice debugging\n"); | |
339 | ||
340 | push_target (&v850ice_ops); /* Switch to using v850ice target now */ | |
341 | ||
342 | target_terminal_init (); | |
343 | ||
e3ca310c KS |
344 | /* Initialize everything necessary to facilitate communication |
345 | between QBox, gdbtk, and the DLLs which control the ICE */ | |
346 | if (ExeAppReq == NULL) | |
347 | { | |
348 | handle = LoadLibrary ("necmsg.dll"); | |
349 | if (handle == NULL) | |
350 | error ("Cannot load necmsg.dll"); | |
351 | ||
352 | ExeAppReq = (long (*) PARAMS ((char *, long, char *, struct MessageIO *))) | |
353 | GetProcAddress (handle, "ExeAppReq"); | |
354 | RegisterClient = (long (*) PARAMS ((HWND))) | |
355 | GetProcAddress (handle, "RegisterClient"); | |
356 | UnregisterClient = (long (*) PARAMS ((void))) | |
357 | GetProcAddress (handle, "UnregisterClient"); | |
358 | ||
359 | if (ExeAppReq == NULL || RegisterClient == NULL || UnregisterClient == NULL) | |
360 | error ("Could not find requisite functions in necmsg.dll."); | |
361 | ||
362 | if (init_hidden_window () != TCL_OK) | |
363 | error ("could not initialize message handling"); | |
364 | } | |
365 | ||
366 | /* Tell the DLL we are here */ | |
367 | RegisterClient (hidden_hwnd); | |
368 | ||
369 | ice_open = 1; | |
370 | ||
6c310da8 SG |
371 | /* Without this, some commands which require an active target (such as kill) |
372 | won't work. This variable serves (at least) double duty as both the pid | |
373 | of the target process (if it has such), and as a flag indicating that a | |
374 | target is active. These functions should be split out into seperate | |
375 | variables, especially since GDB will someday have a notion of debugging | |
376 | several processes. */ | |
6c310da8 SG |
377 | inferior_pid = 42000; |
378 | ||
e3ca310c KS |
379 | start_remote (); |
380 | return; | |
6c310da8 SG |
381 | } |
382 | ||
383 | /* Clean up connection to a remote debugger. */ | |
384 | ||
385 | /* ARGSUSED */ | |
386 | static void | |
387 | v850ice_close (quitting) | |
388 | int quitting; | |
389 | { | |
6c310da8 SG |
390 | if (ice_open) |
391 | { | |
264b9de0 | 392 | UnregisterClient (); |
e3ca310c KS |
393 | ice_open = 0; |
394 | inferior_pid = 0; | |
6c310da8 SG |
395 | } |
396 | } | |
397 | ||
67205639 KS |
398 | /* Stop the process on the ice. */ |
399 | static void | |
400 | v850ice_stop () | |
401 | { | |
402 | /* This is silly, but it works... */ | |
403 | v850ice_command ("stop", 0); | |
404 | } | |
405 | ||
6c310da8 SG |
406 | static void |
407 | v850ice_detach (args, from_tty) | |
408 | char *args; | |
409 | int from_tty; | |
410 | { | |
411 | if (args) | |
412 | error ("Argument given to \"detach\" when remotely debugging."); | |
413 | ||
414 | pop_target (); | |
415 | if (from_tty) | |
416 | puts_filtered ("Ending v850ice debugging.\n"); | |
417 | } | |
418 | ||
419 | /* Tell the remote machine to resume. */ | |
420 | ||
421 | static void | |
422 | v850ice_resume (pid, step, siggnal) | |
423 | int pid, step; | |
424 | enum target_signal siggnal; | |
425 | { | |
e3ca310c KS |
426 | long retval; |
427 | char buf[256]; | |
428 | struct MessageIO iob; | |
429 | ||
430 | iob.size = 0; | |
431 | iob.buf = buf; | |
6c310da8 SG |
432 | |
433 | if (step) | |
e3ca310c | 434 | retval = ExeAppReq ("GDB", GSINGLESTEP, "step", &iob); |
6c310da8 | 435 | else |
e3ca310c | 436 | retval = ExeAppReq ("GDB", GRESUME, "run", &iob); |
6c310da8 SG |
437 | |
438 | if (retval) | |
264b9de0 | 439 | error ("ExeAppReq (step = %d) returned %d", step, retval); |
6c310da8 SG |
440 | } |
441 | ||
442 | /* Wait until the remote machine stops, then return, | |
443 | storing status in STATUS just as `wait' would. | |
444 | Returns "pid" (though it's not clear what, if anything, that | |
445 | means in the case of this target). */ | |
446 | ||
447 | static int | |
448 | v850ice_wait (pid, status) | |
449 | int pid; | |
450 | struct target_waitstatus *status; | |
451 | { | |
264b9de0 | 452 | long v850_status; |
e3ca310c KS |
453 | char buf[256]; |
454 | struct MessageIO iob; | |
455 | int done = 0; | |
4ce8d0e9 KS |
456 | int count = 0; |
457 | ||
e3ca310c KS |
458 | iob.size = 0; |
459 | iob.buf = buf; | |
460 | ||
461 | do | |
462 | { | |
4ce8d0e9 KS |
463 | if (count++ % 100000) |
464 | { | |
465 | ui_loop_hook (-2); | |
466 | count = 0; | |
467 | } | |
468 | ||
e3ca310c KS |
469 | v850_status = ExeAppReq ("GDB", GCHECKSTATUS, NULL, &iob); |
470 | ||
471 | switch (v850_status) | |
472 | { | |
473 | case ICE_Idle: | |
474 | case ICE_Breakpoint: | |
475 | case ICE_Stepped: | |
476 | case ICE_Halted: | |
477 | status->kind = TARGET_WAITKIND_STOPPED; | |
478 | status->value.sig = TARGET_SIGNAL_TRAP; | |
479 | done = 1; | |
480 | break; | |
481 | case ICE_Exception: | |
482 | status->kind = TARGET_WAITKIND_SIGNALLED; | |
483 | status->value.sig = TARGET_SIGNAL_SEGV; | |
484 | done = 1; | |
485 | break; | |
486 | case ICE_Exited: | |
487 | status->kind = TARGET_WAITKIND_EXITED; | |
488 | status->value.integer = 0; | |
489 | done = 1; | |
490 | break; | |
491 | case ICE_Terminated: | |
492 | status->kind = TARGET_WAITKIND_SIGNALLED; | |
493 | status->value.sig = TARGET_SIGNAL_KILL; | |
494 | done = 1; | |
495 | break; | |
496 | default: | |
497 | break; | |
498 | } | |
499 | } | |
500 | while (!done); | |
501 | ||
6c310da8 SG |
502 | return inferior_pid; |
503 | } | |
504 | ||
505 | static int | |
506 | convert_register (regno, buf) | |
507 | int regno; | |
508 | char *buf; | |
509 | { | |
510 | if (regno <= 31) | |
511 | sprintf (buf, "r%d", regno); | |
d70a61e7 AC |
512 | else if (REGISTER_NAME (regno)[0] == 's' |
513 | && REGISTER_NAME (regno)[1] == 'r') | |
6c310da8 SG |
514 | return 0; |
515 | else | |
d70a61e7 | 516 | sprintf (buf, "%s", REGISTER_NAME (regno)); |
6c310da8 SG |
517 | |
518 | return 1; | |
519 | } | |
520 | ||
521 | /* Read the remote registers into the block REGS. */ | |
522 | /* Note that the ICE returns register contents as ascii hex strings. We have | |
523 | to convert that to an unsigned long, and then call store_unsigned_integer to | |
524 | convert it to target byte-order if necessary. */ | |
525 | ||
526 | static void | |
527 | v850ice_fetch_registers (regno) | |
528 | int regno; | |
529 | { | |
530 | long retval; | |
531 | char cmd[100]; | |
532 | char val[100]; | |
264b9de0 | 533 | struct MessageIO iob; |
6c310da8 SG |
534 | unsigned long regval; |
535 | char *p; | |
536 | ||
537 | if (regno == -1) | |
538 | { | |
539 | for (regno = 0; regno < NUM_REGS; regno++) | |
e3ca310c | 540 | v850ice_fetch_registers (regno); |
6c310da8 SG |
541 | return; |
542 | } | |
543 | ||
544 | strcpy (cmd, "reg "); | |
545 | if (!convert_register (regno, &cmd[4])) | |
546 | return; | |
547 | ||
264b9de0 SG |
548 | iob.size = sizeof val; |
549 | iob.buf = val; | |
e3ca310c | 550 | retval = ExeAppReq ("GDB", GREADREG, cmd, &iob); |
6c310da8 | 551 | if (retval) |
e3ca310c | 552 | error ("1: ExeAppReq returned %d: cmd = %s", retval, cmd); |
6c310da8 | 553 | |
e3ca310c | 554 | regval = strtoul (val, NULL, 16); |
6c310da8 SG |
555 | if (regval == 0 && p == val) |
556 | error ("v850ice_fetch_registers (%d): bad value from ICE: %s.", | |
e3ca310c | 557 | regno, val); |
6c310da8 SG |
558 | |
559 | store_unsigned_integer (val, REGISTER_RAW_SIZE (regno), regval); | |
560 | supply_register (regno, val); | |
561 | } | |
562 | ||
563 | /* Store register REGNO, or all registers if REGNO == -1, from the contents | |
564 | of REGISTERS. */ | |
565 | ||
566 | static void | |
567 | v850ice_store_registers (regno) | |
568 | int regno; | |
569 | { | |
570 | long retval; | |
571 | char cmd[100]; | |
6c310da8 | 572 | unsigned long regval; |
e3ca310c KS |
573 | char buf[256]; |
574 | struct MessageIO iob; | |
575 | iob.size = 0; | |
576 | iob.buf = buf; | |
6c310da8 SG |
577 | |
578 | if (regno == -1) | |
579 | { | |
580 | for (regno = 0; regno < NUM_REGS; regno++) | |
581 | v850ice_store_registers (regno); | |
582 | return; | |
583 | } | |
584 | ||
585 | regval = extract_unsigned_integer (®isters[REGISTER_BYTE (regno)], | |
e3ca310c | 586 | REGISTER_RAW_SIZE (regno)); |
6c310da8 SG |
587 | strcpy (cmd, "reg "); |
588 | if (!convert_register (regno, &cmd[4])) | |
589 | return; | |
590 | sprintf (cmd + strlen (cmd), "=0x%x", regval); | |
591 | ||
e3ca310c | 592 | retval = ExeAppReq ("GDB", GWRITEREG, cmd, &iob); |
6c310da8 | 593 | if (retval) |
e3ca310c | 594 | error ("2: ExeAppReq returned %d: cmd = %s", retval, cmd); |
6c310da8 SG |
595 | } |
596 | ||
597 | /* Prepare to store registers. Nothing to do here, since the ICE can write one | |
598 | register at a time. */ | |
599 | ||
600 | static void | |
601 | v850ice_prepare_to_store () | |
602 | { | |
603 | } | |
604 | ||
605 | /* Read or write LEN bytes from inferior memory at MEMADDR, transferring | |
606 | to or from debugger address MYADDR. Write to inferior if SHOULD_WRITE is | |
e3ca310c | 607 | nonzero. Returns length of data written or read; 0 for error. |
6c310da8 | 608 | |
e3ca310c KS |
609 | We can only read/write MAX_BLOCK_SIZE bytes at a time, though, or the DLL |
610 | dies */ | |
6c310da8 SG |
611 | /* ARGSUSED */ |
612 | static int | |
613 | v850ice_xfer_memory (memaddr, myaddr, len, should_write, target) | |
614 | CORE_ADDR memaddr; | |
615 | char *myaddr; | |
616 | int len; | |
617 | int should_write; | |
618 | struct target_ops *target; /* ignored */ | |
619 | { | |
620 | long retval; | |
621 | char cmd[100]; | |
264b9de0 | 622 | struct MessageIO iob; |
e3ca310c | 623 | int sent; |
6c310da8 SG |
624 | |
625 | if (should_write) | |
626 | { | |
e3ca310c KS |
627 | if (len == 4 || len == 2 || len == 1) |
628 | { | |
629 | long value = 0; | |
630 | char buf[256]; | |
631 | char c; | |
632 | ||
633 | iob.size = 0; | |
634 | iob.buf = buf; | |
635 | ||
636 | sent = 0; | |
637 | switch (len) | |
638 | { | |
639 | case 4: | |
640 | c = 'w'; | |
641 | value |= (long) (myaddr[3] << 24) & 0xff000000; | |
642 | value |= (long) (myaddr[2] << 16) & 0x00ff0000; | |
643 | value |= (long) (myaddr[1] << 8) & 0x0000ff00; | |
644 | value |= (long) myaddr[0] & 0x000000ff; | |
645 | case 2: | |
646 | c = 'h'; | |
647 | value |= (long) myaddr[1] << 8 & 0xff00; | |
648 | value |= (long) myaddr[0] & 0x00ff; | |
649 | break; | |
650 | case 1: | |
651 | c = 'b'; | |
652 | value |= (long) myaddr[0] & 0xff; | |
653 | break; | |
654 | } | |
655 | ||
656 | sprintf (cmd, "memory %c c 0x%x=0x%x", c, (int) memaddr, value); | |
657 | retval = ExeAppReq ("GDB", GWRITEMEM, cmd, &iob); | |
658 | if (retval == 0) | |
659 | sent = len; | |
660 | } | |
661 | else | |
662 | { | |
663 | sent = 0; | |
664 | do | |
665 | { | |
666 | iob.size = len > MAX_BLOCK_SIZE ? MAX_BLOCK_SIZE : len; | |
667 | iob.buf = myaddr; | |
668 | sprintf (cmd, "memory b c 0x%x=0x00 l=%d", (int)memaddr, iob.size); | |
669 | retval = ExeAppReq ("GDB", GWRITEBLOCK, cmd, &iob); | |
670 | if (retval != 0) | |
671 | break; | |
672 | len -= iob.size; | |
673 | memaddr += iob.size; | |
674 | myaddr += iob.size; | |
675 | sent += iob.size; | |
676 | } | |
677 | while (len > 0); | |
678 | } | |
6c310da8 SG |
679 | } |
680 | else | |
681 | { | |
682 | unsigned char *tmp; | |
e3ca310c | 683 | unsigned char *t; |
6c310da8 | 684 | int i; |
e3ca310c | 685 | |
6c310da8 | 686 | tmp = alloca (len + 100); |
e3ca310c | 687 | t = tmp; |
6c310da8 | 688 | memset (tmp + len, 0xff, 100); |
6c310da8 | 689 | |
e3ca310c KS |
690 | sent = 0; |
691 | do | |
692 | { | |
693 | iob.size = len > MAX_BLOCK_SIZE ? MAX_BLOCK_SIZE : len; | |
694 | iob.buf = tmp; | |
695 | sprintf (cmd, "memory b 0x%x l=%d", (int)memaddr, iob.size); | |
696 | retval = ExeAppReq ("GDB", GREADBLOCK, cmd, &iob); | |
697 | if (retval != 0) | |
698 | break; | |
699 | len -= iob.size; | |
700 | memaddr += iob.size; | |
701 | sent += iob.size; | |
702 | tmp += iob.size; | |
703 | } | |
704 | while (len > 0); | |
705 | ||
706 | if (retval == 0) | |
707 | { | |
708 | for (i = 0; i < 100; i++) | |
709 | { | |
710 | if (t[sent + i] != 0xff) | |
711 | { | |
712 | warning ("GREADBLOCK trashed bytes after transfer area."); | |
713 | break; | |
714 | } | |
715 | } | |
716 | memcpy (myaddr, t, sent); | |
717 | } | |
718 | } | |
719 | ||
720 | if (retval != 0) | |
721 | error ("3: ExeAppReq returned %d: cmd = %s", retval, cmd); | |
722 | ||
723 | return sent; | |
6c310da8 SG |
724 | } |
725 | ||
726 | static void | |
727 | v850ice_files_info (ignore) | |
728 | struct target_ops *ignore; | |
729 | { | |
730 | puts_filtered ("Debugging a target via the NEC V850 ICE.\n"); | |
731 | } | |
732 | ||
733 | static int | |
734 | v850ice_insert_breakpoint (addr, contents_cache) | |
735 | CORE_ADDR addr; | |
736 | char *contents_cache; | |
737 | { | |
738 | long retval; | |
739 | char cmd[100]; | |
e3ca310c KS |
740 | char buf[256]; |
741 | struct MessageIO iob; | |
6c310da8 | 742 | |
e3ca310c KS |
743 | iob.size = 0; |
744 | iob.buf = buf; | |
6c310da8 SG |
745 | sprintf (cmd, "%d, ", addr); |
746 | ||
e3ca310c | 747 | retval = ExeAppReq ("GDB", GSETBREAK, cmd, &iob); |
6c310da8 | 748 | if (retval) |
e3ca310c | 749 | error ("ExeAppReq (GSETBREAK) returned %d: cmd = %s", retval, cmd); |
6c310da8 SG |
750 | |
751 | return 0; | |
752 | } | |
753 | ||
754 | static int | |
755 | v850ice_remove_breakpoint (addr, contents_cache) | |
756 | CORE_ADDR addr; | |
757 | char *contents_cache; | |
758 | { | |
759 | long retval; | |
760 | char cmd[100]; | |
e3ca310c KS |
761 | char buf[256]; |
762 | struct MessageIO iob; | |
763 | ||
764 | iob.size = 0; | |
765 | iob.buf = buf; | |
6c310da8 SG |
766 | |
767 | sprintf (cmd, "%d, ", addr); | |
768 | ||
e3ca310c | 769 | retval = ExeAppReq ("GDB", GREMOVEBREAK, cmd, &iob); |
6c310da8 | 770 | if (retval) |
e3ca310c | 771 | error ("ExeAppReq (GREMOVEBREAK) returned %d: cmd = %s", retval, cmd); |
6c310da8 SG |
772 | |
773 | return 0; | |
774 | } | |
775 | ||
776 | static void | |
777 | v850ice_kill () | |
778 | { | |
779 | target_mourn_inferior (); | |
e3ca310c | 780 | inferior_pid = 0; |
6c310da8 SG |
781 | } |
782 | ||
783 | static void | |
784 | v850ice_mourn () | |
785 | { | |
786 | } | |
787 | ||
e3ca310c KS |
788 | static void |
789 | v850ice_load (filename, from_tty) | |
790 | char * filename; | |
791 | int from_tty; | |
792 | { | |
793 | struct MessageIO iob; | |
794 | char buf[256]; | |
795 | ||
796 | iob.size = 0; | |
797 | iob.buf = buf; | |
798 | generic_load(filename, from_tty); | |
67205639 | 799 | ExeAppReq ("GDB", GDOWNLOAD, filename, &iob); |
e3ca310c KS |
800 | } |
801 | ||
802 | static int | |
803 | ice_file (arg) | |
804 | char *arg; | |
805 | { | |
806 | char *s; | |
807 | ||
808 | target_detach (NULL, 0); | |
809 | pop_target (); | |
810 | ||
811 | printf_unfiltered ("\n"); | |
812 | ||
813 | s = arg; | |
814 | while (*s != '\0') | |
815 | { | |
816 | if (*s == '\\') | |
817 | *s = '/'; | |
818 | s++; | |
819 | } | |
820 | ||
821 | /* Safegaurd against confusing the breakpoint routines... */ | |
822 | delete_command(NULL, 0); | |
823 | ||
824 | /* Must supress from_tty, otherwise we could start asking if the | |
825 | user really wants to load a new symbol table, etc... */ | |
826 | printf_unfiltered ("Reading symbols from %s...", arg); | |
827 | exec_file_command (arg, 0); | |
828 | symbol_file_command (arg, 0); | |
829 | printf_unfiltered ("done\n"); | |
830 | ||
831 | /* exec_file_command will kill our target, so reinstall the ICE as | |
832 | the target. */ | |
833 | v850ice_open (NULL, 0); | |
6c310da8 | 834 | |
e3ca310c KS |
835 | togdb_force_update (); |
836 | return 1; | |
837 | } | |
838 | ||
839 | static int | |
840 | ice_cont (c) | |
841 | char *c; | |
842 | { | |
67205639 | 843 | printf_filtered ("continue (ice)"); |
4ce8d0e9 | 844 | ReplyMessage ((LRESULT) 1); |
67205639 | 845 | Tcl_Eval (gdbtk_interp, "gdb_immediate continue"); |
e3ca310c KS |
846 | return 1; |
847 | } | |
848 | ||
badb1b51 KS |
849 | static void |
850 | do_gdb (cmd, str, count) | |
851 | char *cmd; | |
852 | char *str; | |
853 | int count; | |
854 | { | |
855 | ||
856 | ReplyMessage ((LRESULT) 1); | |
857 | ||
858 | while (count--) | |
859 | { | |
860 | printf_unfiltered (str); | |
861 | Tcl_Eval (gdbtk_interp, cmd); | |
862 | } | |
863 | } | |
864 | ||
865 | ||
e3ca310c KS |
866 | static int |
867 | ice_stepi (c) | |
868 | char *c; | |
869 | { | |
e3ca310c KS |
870 | int count = (int) c; |
871 | ||
badb1b51 | 872 | do_gdb ("gdb_immediate stepi", "stepi (ice)\n", count); |
e3ca310c KS |
873 | return 1; |
874 | } | |
875 | ||
876 | static int | |
877 | ice_nexti (c) | |
878 | char *c; | |
879 | { | |
e3ca310c KS |
880 | int count = (int) c; |
881 | ||
badb1b51 | 882 | do_gdb ("gdb_immediate nexti", "nexti (ice)\n", count); |
e3ca310c KS |
883 | return 1; |
884 | } | |
885 | ||
886 | static void | |
887 | v850ice_command (arg, from_tty) | |
888 | char *arg; | |
889 | int from_tty; | |
890 | { | |
891 | struct MessageIO iob; | |
892 | char buf[256]; | |
893 | ||
894 | iob.buf = buf; | |
895 | iob.size = 0; | |
896 | ExeAppReq ("GDB", GCOMMAND, arg, &iob); | |
897 | } | |
898 | ||
899 | static void | |
900 | togdb_force_update (void) | |
901 | { | |
902 | Tcl_Eval (gdbtk_interp, "gdbtk_update"); | |
903 | } | |
904 | ||
4ce8d0e9 KS |
905 | static void |
906 | view_source (addr) | |
907 | CORE_ADDR addr; | |
908 | { | |
909 | char c[256]; | |
910 | ||
badb1b51 | 911 | sprintf (c, "set src [lindex [manage find src] 0]\n$src location BROWSE [gdb_loc *0x%x]", addr); |
4ce8d0e9 KS |
912 | Tcl_Eval (gdbtk_interp, c); |
913 | } | |
914 | ||
e3ca310c | 915 | /* Define the target subroutine names */ |
c719b714 | 916 | |
ba4d67c2 FN |
917 | static void |
918 | init_850ice_ops(void) | |
c719b714 JM |
919 | { |
920 | v850ice_ops.to_shortname = "ice"; | |
921 | v850ice_ops.to_longname = "NEC V850 ICE interface"; | |
922 | v850ice_ops.to_doc = "Debug a system controlled by a NEC 850 ICE."; | |
923 | v850ice_ops.to_open = v850ice_open; | |
924 | v850ice_ops.to_close = v850ice_close; | |
4ef1f467 DT |
925 | v850ice_ops.to_attach = NULL; |
926 | v850ice_ops.to_post_attach = NULL; | |
927 | v850ice_ops.to_require_attach = NULL; | |
928 | v850ice_ops.to_detach = v850ice_detach; | |
929 | v850ice_ops.to_require_detach = NULL; | |
c719b714 | 930 | v850ice_ops.to_resume = v850ice_resume; |
4ef1f467 DT |
931 | v850ice_ops.to_wait = v850ice_wait; |
932 | v850ice_ops.to_post_wait = NULL; | |
c719b714 JM |
933 | v850ice_ops.to_fetch_registers = v850ice_fetch_registers; |
934 | v850ice_ops.to_store_registers = v850ice_store_registers; | |
935 | v850ice_ops.to_prepare_to_store = v850ice_prepare_to_store; | |
936 | v850ice_ops.to_xfer_memory = v850ice_xfer_memory; | |
937 | v850ice_ops.to_files_info = v850ice_files_info; | |
938 | v850ice_ops.to_insert_breakpoint = v850ice_insert_breakpoint; | |
939 | v850ice_ops.to_remove_breakpoint = v850ice_remove_breakpoint; | |
940 | v850ice_ops.to_terminal_init = NULL; | |
941 | v850ice_ops.to_terminal_inferior = NULL; | |
942 | v850ice_ops.to_terminal_ours_for_output = NULL; | |
943 | v850ice_ops.to_terminal_ours = NULL; | |
944 | v850ice_ops.to_terminal_info = NULL; | |
945 | v850ice_ops.to_kill = v850ice_kill; | |
e3ca310c | 946 | v850ice_ops.to_load = v850ice_load; |
c719b714 | 947 | v850ice_ops.to_lookup_symbol = NULL; |
4ef1f467 | 948 | v850ice_ops.to_create_inferior = NULL; |
c719b714 JM |
949 | v850ice_ops.to_mourn_inferior = v850ice_mourn; |
950 | v850ice_ops.to_can_run = 0; | |
951 | v850ice_ops.to_notice_signals = 0; | |
952 | v850ice_ops.to_thread_alive = NULL; | |
67205639 | 953 | v850ice_ops.to_stop = v850ice_stop; |
4ef1f467 DT |
954 | v850ice_ops.to_pid_to_exec_file = NULL; |
955 | v850ice_ops.to_core_file_to_sym_file = NULL; | |
c719b714 JM |
956 | v850ice_ops.to_stratum = process_stratum; |
957 | v850ice_ops.DONT_USE = NULL; | |
958 | v850ice_ops.to_has_all_memory = 1; | |
959 | v850ice_ops.to_has_memory = 1; | |
960 | v850ice_ops.to_has_stack = 1; | |
961 | v850ice_ops.to_has_registers = 1; | |
962 | v850ice_ops.to_has_execution = 1; | |
963 | v850ice_ops.to_sections = NULL; | |
964 | v850ice_ops.to_sections_end = NULL; | |
965 | v850ice_ops.to_magic = OPS_MAGIC ; | |
966 | } | |
6c310da8 SG |
967 | |
968 | void | |
969 | _initialize_v850ice () | |
970 | { | |
e3ca310c | 971 | init_850ice_ops (); |
6c310da8 | 972 | add_target (&v850ice_ops); |
e3ca310c KS |
973 | |
974 | add_com ("ice", class_obscure, v850ice_command, | |
975 | "Send command to ICE"); | |
6c310da8 | 976 | } |