]>
Commit | Line | Data |
---|---|---|
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 | |
e3ca310c | 7 | it under the terms of the GNU General Pessublic 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 | ||
e3ca310c KS |
127 | /* Globals */ |
128 | static HWND hidden_hwnd; /* HWND for messages */ | |
129 | ||
130 | long (__stdcall *ExeAppReq) PARAMS ((char *, long, char *, struct MessageIO *)); | |
131 | ||
132 | long (__stdcall *RegisterClient) PARAMS ((HWND)); | |
133 | ||
134 | long (__stdcall *UnregisterClient) PARAMS ((void)); | |
135 | ||
136 | extern Tcl_Interp *gdbtk_interp; | |
137 | ||
138 | /* Globals local to this file only */ | |
139 | static int ice_open = 0; /* Is ICE open? */ | |
140 | ||
141 | static char * v850_CB_Result; /* special char array for saving 'callback' results */ | |
142 | ||
143 | static int SimulateCallback; /* simulate a callback event */ | |
144 | ||
145 | #define MAX_BLOCK_SIZE 64*1024 /* Cannot transfer memory in blocks bigger | |
146 | than this */ | |
147 | /* MDI/ICE Message IDs */ | |
148 | #define GSINGLESTEP 0x200 /* single-step target */ | |
149 | #define GRESUME 0x201 /* resume target */ | |
150 | #define GREADREG 0x202 /* read a register */ | |
151 | #define GWRITEREG 0x203 /* write a register */ | |
152 | #define GWRITEBLOCK 0x204 /* write a block of memory */ | |
153 | #define GREADBLOCK 0x205 /* read a block of memory */ | |
154 | #define GSETBREAK 0x206 /* set a breakpoint */ | |
155 | #define GREMOVEBREAK 0x207 /* remove a breakpoint */ | |
156 | #define GHALT 0x208 /* ??? */ | |
157 | #define GCHECKSTATUS 0x209 /* check status of ICE */ | |
158 | #define GMDIREPLY 0x210 /* Reply for previous query - NOT USED */ | |
159 | #define GDOWNLOAD 0x211 /* something for MDI */ | |
160 | #define GCOMMAND 0x212 /* execute command in ice */ | |
161 | #define GLOADFILENAME 0x213 /* retrieve load filename */ | |
162 | #define GWRITEMEM 0x214 /* write word, half-word, or byte */ | |
163 | ||
164 | /* GCHECKSTATUS return codes: */ | |
165 | #define ICE_Idle 0x00 | |
166 | #define ICE_Breakpoint 0x01 /* hit a breakpoint */ | |
167 | #define ICE_Stepped 0x02 /* have stepped */ | |
168 | #define ICE_Exception 0x03 /* have exception */ | |
169 | #define ICE_Halted 0x04 /* hit a user halt */ | |
170 | #define ICE_Exited 0x05 /* called exit */ | |
171 | #define ICE_Terminated 0x06 /* user terminated */ | |
172 | #define ICE_Running 0x07 | |
173 | #define ICE_Unknown 0x99 | |
174 | ||
175 | /* Windows messages */ | |
176 | #define WM_STATE_CHANGE WM_USER+101 | |
177 | #define WM_SYM_TO_ADDR WM_USER+102 | |
178 | #define WM_ADDR_TO_SYM WM_USER+103 | |
179 | #define WM_DISASSEMBLY WM_USER+104 | |
4ce8d0e9 | 180 | #define WM_SOURCE WM_USER+105 |
e3ca310c KS |
181 | |
182 | /* STATE_CHANGE codes */ | |
183 | #define STATE_CHANGE_REGS 1 /* Register(s) changed */ | |
184 | #define STATE_CHANGE_LOAD 2 /* HW reset */ | |
185 | #define STATE_CHANGE_RESET 3 /* Load new file */ | |
186 | #define STATE_CHANGE_CONT 4 /* Run target */ | |
187 | #define STATE_CHANGE_STOP 5 /* Stop target */ | |
188 | #define STATE_CHANGE_STEPI 6 /* Stepi target */ | |
189 | #define STATE_CHANGE_NEXTI 7 /* Nexti target */ | |
190 | ||
191 | static struct target_ops v850ice_ops; /* Forward decl */ | |
192 | ||
193 | /* This function creates a hidden window */ | |
194 | static int | |
195 | init_hidden_window () | |
264b9de0 | 196 | { |
e3ca310c KS |
197 | WNDCLASS class; |
198 | ||
199 | if (hidden_hwnd != NULL) | |
200 | return TCL_OK; | |
201 | ||
202 | class.style = 0; | |
203 | class.cbClsExtra = 0; | |
204 | class.cbWndExtra = 0; | |
205 | class.hInstance = Tk_GetHINSTANCE(); | |
206 | class.hbrBackground = NULL; | |
207 | class.lpszMenuName = NULL; | |
208 | class.lpszClassName = "gdbtk_v850ice"; | |
209 | class.lpfnWndProc = v850ice_wndproc; | |
210 | class.hIcon = NULL; | |
211 | class.hCursor = NULL; | |
212 | ||
213 | if (! RegisterClass (&class)) | |
214 | return TCL_ERROR; | |
215 | ||
216 | hidden_hwnd = CreateWindow ("gdbtk_v850ice", "gdbtk_v850ice", WS_TILED, | |
217 | 0, 0, 0, 0, NULL, NULL, class.hInstance, | |
218 | NULL); | |
219 | if (hidden_hwnd == NULL) | |
220 | { | |
221 | char buf[200]; | |
222 | DWORD err; | |
223 | ||
224 | err = GetLastError (); | |
225 | FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM, NULL, err, | |
226 | 0, buf, 200, NULL); | |
227 | printf_unfiltered ("Could not create window: %s", buf); | |
228 | return TCL_ERROR; | |
229 | } | |
230 | ||
231 | return TCL_OK; | |
232 | } | |
233 | ||
234 | /* | |
235 | This function is installed as the message handler for the hidden window | |
236 | which QBox will use to communicate with gdbtk. It recognize and acts | |
237 | on the following messages: | |
238 | ||
239 | WM_SYM_TO_ADDR \ | |
240 | WM_ADDR_TO_SYM | Not implemented at NEC's request | |
241 | WM_DISASSEMBLY / | |
242 | WM_STATE_CHANGE - tells us that a state change has occured in the ICE | |
243 | */ | |
244 | static LRESULT CALLBACK | |
245 | v850ice_wndproc (hwnd, message, wParam, lParam) | |
246 | HWND hwnd; | |
247 | UINT message; | |
248 | WPARAM wParam; | |
249 | LPARAM lParam; | |
250 | { | |
251 | LRESULT result = FALSE; | |
252 | ||
253 | switch (message) | |
254 | { | |
255 | case WM_SYM_TO_ADDR: | |
256 | MessageBox (0, "Symbol resolution\nNot implemented", "GDB", MB_OK); | |
257 | break; | |
258 | case WM_ADDR_TO_SYM: | |
259 | MessageBox (0, "Address resolution\nNot implemented", "GDB", MB_OK); | |
260 | break; | |
4ce8d0e9 KS |
261 | case WM_SOURCE: |
262 | view_source ((CORE_ADDR) lParam); | |
263 | break; | |
e3ca310c KS |
264 | case WM_STATE_CHANGE: |
265 | switch (wParam) | |
266 | { | |
267 | case STATE_CHANGE_LOAD: | |
268 | { | |
269 | struct MessageIO iob; | |
270 | char buf[128]; | |
271 | ||
272 | iob.buf = buf; | |
273 | iob.size = 128; | |
274 | ||
275 | /* Load in a new file... Need filename */ | |
276 | ExeAppReq ("GDB", GLOADFILENAME, NULL, &iob); | |
277 | if (!catch_errors (ice_file, iob.buf, "", RETURN_MASK_ALL)) | |
278 | printf_unfiltered ("load errored\n"); | |
279 | } | |
280 | break; | |
281 | case STATE_CHANGE_RESET: | |
282 | registers_changed (); | |
283 | flush_cached_frames (); | |
284 | togdb_force_update (); | |
285 | result = TRUE; | |
286 | break; | |
287 | case STATE_CHANGE_REGS: | |
288 | registers_changed (); | |
289 | togdb_force_update (); | |
290 | result = TRUE; | |
291 | break; | |
292 | case STATE_CHANGE_CONT: | |
293 | if (!catch_errors (ice_cont, NULL, "", RETURN_MASK_ALL)) | |
294 | printf_unfiltered ("continue errored\n"); | |
295 | result = TRUE; | |
296 | break; | |
297 | case STATE_CHANGE_STEPI: | |
298 | if (!catch_errors (ice_stepi, (PTR)(int) lParam, "", | |
299 | RETURN_MASK_ALL)) | |
300 | printf_unfiltered ("stepi errored\n"); | |
301 | result = TRUE; | |
302 | break; | |
303 | case STATE_CHANGE_NEXTI: | |
304 | if (!catch_errors (ice_nexti, (PTR)(int) lParam, "", | |
305 | RETURN_MASK_ALL)) | |
306 | printf_unfiltered ("nexti errored\n"); | |
307 | result = TRUE; | |
308 | break; | |
309 | } | |
310 | } | |
264b9de0 | 311 | |
e3ca310c KS |
312 | if (result == FALSE) |
313 | return DefWindowProc (hwnd, message, wParam, lParam); | |
314 | ||
315 | return FALSE; | |
316 | } | |
6c310da8 SG |
317 | |
318 | /* Code for opening a connection to the ICE. */ | |
319 | ||
320 | static void | |
321 | v850ice_open (name, from_tty) | |
322 | char *name; | |
323 | int from_tty; | |
324 | { | |
e3ca310c | 325 | HINSTANCE handle; |
6c310da8 SG |
326 | |
327 | if (name) | |
328 | error ("Too many arguments."); | |
329 | ||
330 | target_preopen (from_tty); | |
331 | ||
332 | unpush_target (&v850ice_ops); | |
333 | ||
334 | if (from_tty) | |
335 | puts_filtered ("V850ice debugging\n"); | |
336 | ||
337 | push_target (&v850ice_ops); /* Switch to using v850ice target now */ | |
338 | ||
339 | target_terminal_init (); | |
340 | ||
e3ca310c KS |
341 | /* Initialize everything necessary to facilitate communication |
342 | between QBox, gdbtk, and the DLLs which control the ICE */ | |
343 | if (ExeAppReq == NULL) | |
344 | { | |
345 | handle = LoadLibrary ("necmsg.dll"); | |
346 | if (handle == NULL) | |
347 | error ("Cannot load necmsg.dll"); | |
348 | ||
349 | ExeAppReq = (long (*) PARAMS ((char *, long, char *, struct MessageIO *))) | |
350 | GetProcAddress (handle, "ExeAppReq"); | |
351 | RegisterClient = (long (*) PARAMS ((HWND))) | |
352 | GetProcAddress (handle, "RegisterClient"); | |
353 | UnregisterClient = (long (*) PARAMS ((void))) | |
354 | GetProcAddress (handle, "UnregisterClient"); | |
355 | ||
356 | if (ExeAppReq == NULL || RegisterClient == NULL || UnregisterClient == NULL) | |
357 | error ("Could not find requisite functions in necmsg.dll."); | |
358 | ||
359 | if (init_hidden_window () != TCL_OK) | |
360 | error ("could not initialize message handling"); | |
361 | } | |
362 | ||
363 | /* Tell the DLL we are here */ | |
364 | RegisterClient (hidden_hwnd); | |
365 | ||
366 | ice_open = 1; | |
367 | ||
6c310da8 SG |
368 | /* Without this, some commands which require an active target (such as kill) |
369 | won't work. This variable serves (at least) double duty as both the pid | |
370 | of the target process (if it has such), and as a flag indicating that a | |
371 | target is active. These functions should be split out into seperate | |
372 | variables, especially since GDB will someday have a notion of debugging | |
373 | several processes. */ | |
6c310da8 SG |
374 | inferior_pid = 42000; |
375 | ||
e3ca310c KS |
376 | start_remote (); |
377 | return; | |
6c310da8 SG |
378 | } |
379 | ||
380 | /* Clean up connection to a remote debugger. */ | |
381 | ||
382 | /* ARGSUSED */ | |
383 | static void | |
384 | v850ice_close (quitting) | |
385 | int quitting; | |
386 | { | |
6c310da8 SG |
387 | if (ice_open) |
388 | { | |
264b9de0 | 389 | UnregisterClient (); |
e3ca310c KS |
390 | ice_open = 0; |
391 | inferior_pid = 0; | |
6c310da8 SG |
392 | } |
393 | } | |
394 | ||
67205639 KS |
395 | /* Stop the process on the ice. */ |
396 | static void | |
397 | v850ice_stop () | |
398 | { | |
399 | /* This is silly, but it works... */ | |
400 | v850ice_command ("stop", 0); | |
401 | } | |
402 | ||
6c310da8 SG |
403 | static void |
404 | v850ice_detach (args, from_tty) | |
405 | char *args; | |
406 | int from_tty; | |
407 | { | |
408 | if (args) | |
409 | error ("Argument given to \"detach\" when remotely debugging."); | |
410 | ||
411 | pop_target (); | |
412 | if (from_tty) | |
413 | puts_filtered ("Ending v850ice debugging.\n"); | |
414 | } | |
415 | ||
416 | /* Tell the remote machine to resume. */ | |
417 | ||
418 | static void | |
419 | v850ice_resume (pid, step, siggnal) | |
420 | int pid, step; | |
421 | enum target_signal siggnal; | |
422 | { | |
e3ca310c KS |
423 | long retval; |
424 | char buf[256]; | |
425 | struct MessageIO iob; | |
426 | ||
427 | iob.size = 0; | |
428 | iob.buf = buf; | |
6c310da8 SG |
429 | |
430 | if (step) | |
e3ca310c | 431 | retval = ExeAppReq ("GDB", GSINGLESTEP, "step", &iob); |
6c310da8 | 432 | else |
e3ca310c | 433 | retval = ExeAppReq ("GDB", GRESUME, "run", &iob); |
6c310da8 SG |
434 | |
435 | if (retval) | |
264b9de0 | 436 | error ("ExeAppReq (step = %d) returned %d", step, retval); |
6c310da8 SG |
437 | } |
438 | ||
439 | /* Wait until the remote machine stops, then return, | |
440 | storing status in STATUS just as `wait' would. | |
441 | Returns "pid" (though it's not clear what, if anything, that | |
442 | means in the case of this target). */ | |
443 | ||
444 | static int | |
445 | v850ice_wait (pid, status) | |
446 | int pid; | |
447 | struct target_waitstatus *status; | |
448 | { | |
264b9de0 | 449 | long v850_status; |
e3ca310c KS |
450 | char buf[256]; |
451 | struct MessageIO iob; | |
452 | int done = 0; | |
4ce8d0e9 KS |
453 | int count = 0; |
454 | ||
e3ca310c KS |
455 | iob.size = 0; |
456 | iob.buf = buf; | |
457 | ||
458 | do | |
459 | { | |
4ce8d0e9 KS |
460 | if (count++ % 100000) |
461 | { | |
462 | ui_loop_hook (-2); | |
463 | count = 0; | |
464 | } | |
465 | ||
e3ca310c KS |
466 | v850_status = ExeAppReq ("GDB", GCHECKSTATUS, NULL, &iob); |
467 | ||
468 | switch (v850_status) | |
469 | { | |
470 | case ICE_Idle: | |
471 | case ICE_Breakpoint: | |
472 | case ICE_Stepped: | |
473 | case ICE_Halted: | |
474 | status->kind = TARGET_WAITKIND_STOPPED; | |
475 | status->value.sig = TARGET_SIGNAL_TRAP; | |
476 | done = 1; | |
477 | break; | |
478 | case ICE_Exception: | |
479 | status->kind = TARGET_WAITKIND_SIGNALLED; | |
480 | status->value.sig = TARGET_SIGNAL_SEGV; | |
481 | done = 1; | |
482 | break; | |
483 | case ICE_Exited: | |
484 | status->kind = TARGET_WAITKIND_EXITED; | |
485 | status->value.integer = 0; | |
486 | done = 1; | |
487 | break; | |
488 | case ICE_Terminated: | |
489 | status->kind = TARGET_WAITKIND_SIGNALLED; | |
490 | status->value.sig = TARGET_SIGNAL_KILL; | |
491 | done = 1; | |
492 | break; | |
493 | default: | |
494 | break; | |
495 | } | |
496 | } | |
497 | while (!done); | |
498 | ||
6c310da8 SG |
499 | return inferior_pid; |
500 | } | |
501 | ||
502 | static int | |
503 | convert_register (regno, buf) | |
504 | int regno; | |
505 | char *buf; | |
506 | { | |
507 | if (regno <= 31) | |
508 | sprintf (buf, "r%d", regno); | |
509 | else if (reg_names[regno][0] == 's' | |
510 | && reg_names[regno][1] == 'r') | |
511 | return 0; | |
512 | else | |
513 | sprintf (buf, "%s", reg_names[regno]); | |
514 | ||
515 | return 1; | |
516 | } | |
517 | ||
518 | /* Read the remote registers into the block REGS. */ | |
519 | /* Note that the ICE returns register contents as ascii hex strings. We have | |
520 | to convert that to an unsigned long, and then call store_unsigned_integer to | |
521 | convert it to target byte-order if necessary. */ | |
522 | ||
523 | static void | |
524 | v850ice_fetch_registers (regno) | |
525 | int regno; | |
526 | { | |
527 | long retval; | |
528 | char cmd[100]; | |
529 | char val[100]; | |
264b9de0 | 530 | struct MessageIO iob; |
6c310da8 SG |
531 | unsigned long regval; |
532 | char *p; | |
533 | ||
534 | if (regno == -1) | |
535 | { | |
536 | for (regno = 0; regno < NUM_REGS; regno++) | |
e3ca310c | 537 | v850ice_fetch_registers (regno); |
6c310da8 SG |
538 | return; |
539 | } | |
540 | ||
541 | strcpy (cmd, "reg "); | |
542 | if (!convert_register (regno, &cmd[4])) | |
543 | return; | |
544 | ||
264b9de0 SG |
545 | iob.size = sizeof val; |
546 | iob.buf = val; | |
e3ca310c | 547 | retval = ExeAppReq ("GDB", GREADREG, cmd, &iob); |
6c310da8 | 548 | if (retval) |
e3ca310c | 549 | error ("1: ExeAppReq returned %d: cmd = %s", retval, cmd); |
6c310da8 | 550 | |
e3ca310c | 551 | regval = strtoul (val, NULL, 16); |
6c310da8 SG |
552 | if (regval == 0 && p == val) |
553 | error ("v850ice_fetch_registers (%d): bad value from ICE: %s.", | |
e3ca310c | 554 | regno, val); |
6c310da8 SG |
555 | |
556 | store_unsigned_integer (val, REGISTER_RAW_SIZE (regno), regval); | |
557 | supply_register (regno, val); | |
558 | } | |
559 | ||
560 | /* Store register REGNO, or all registers if REGNO == -1, from the contents | |
561 | of REGISTERS. */ | |
562 | ||
563 | static void | |
564 | v850ice_store_registers (regno) | |
565 | int regno; | |
566 | { | |
567 | long retval; | |
568 | char cmd[100]; | |
6c310da8 | 569 | unsigned long regval; |
e3ca310c KS |
570 | char buf[256]; |
571 | struct MessageIO iob; | |
572 | iob.size = 0; | |
573 | iob.buf = buf; | |
6c310da8 SG |
574 | |
575 | if (regno == -1) | |
576 | { | |
577 | for (regno = 0; regno < NUM_REGS; regno++) | |
578 | v850ice_store_registers (regno); | |
579 | return; | |
580 | } | |
581 | ||
582 | regval = extract_unsigned_integer (®isters[REGISTER_BYTE (regno)], | |
e3ca310c | 583 | REGISTER_RAW_SIZE (regno)); |
6c310da8 SG |
584 | strcpy (cmd, "reg "); |
585 | if (!convert_register (regno, &cmd[4])) | |
586 | return; | |
587 | sprintf (cmd + strlen (cmd), "=0x%x", regval); | |
588 | ||
e3ca310c | 589 | retval = ExeAppReq ("GDB", GWRITEREG, cmd, &iob); |
6c310da8 | 590 | if (retval) |
e3ca310c | 591 | error ("2: ExeAppReq returned %d: cmd = %s", retval, cmd); |
6c310da8 SG |
592 | } |
593 | ||
594 | /* Prepare to store registers. Nothing to do here, since the ICE can write one | |
595 | register at a time. */ | |
596 | ||
597 | static void | |
598 | v850ice_prepare_to_store () | |
599 | { | |
600 | } | |
601 | ||
602 | /* Read or write LEN bytes from inferior memory at MEMADDR, transferring | |
603 | to or from debugger address MYADDR. Write to inferior if SHOULD_WRITE is | |
e3ca310c | 604 | nonzero. Returns length of data written or read; 0 for error. |
6c310da8 | 605 | |
e3ca310c KS |
606 | We can only read/write MAX_BLOCK_SIZE bytes at a time, though, or the DLL |
607 | dies */ | |
6c310da8 SG |
608 | /* ARGSUSED */ |
609 | static int | |
610 | v850ice_xfer_memory (memaddr, myaddr, len, should_write, target) | |
611 | CORE_ADDR memaddr; | |
612 | char *myaddr; | |
613 | int len; | |
614 | int should_write; | |
615 | struct target_ops *target; /* ignored */ | |
616 | { | |
617 | long retval; | |
618 | char cmd[100]; | |
264b9de0 | 619 | struct MessageIO iob; |
e3ca310c | 620 | int sent; |
6c310da8 SG |
621 | |
622 | if (should_write) | |
623 | { | |
e3ca310c KS |
624 | if (len == 4 || len == 2 || len == 1) |
625 | { | |
626 | long value = 0; | |
627 | char buf[256]; | |
628 | char c; | |
629 | ||
630 | iob.size = 0; | |
631 | iob.buf = buf; | |
632 | ||
633 | sent = 0; | |
634 | switch (len) | |
635 | { | |
636 | case 4: | |
637 | c = 'w'; | |
638 | value |= (long) (myaddr[3] << 24) & 0xff000000; | |
639 | value |= (long) (myaddr[2] << 16) & 0x00ff0000; | |
640 | value |= (long) (myaddr[1] << 8) & 0x0000ff00; | |
641 | value |= (long) myaddr[0] & 0x000000ff; | |
642 | case 2: | |
643 | c = 'h'; | |
644 | value |= (long) myaddr[1] << 8 & 0xff00; | |
645 | value |= (long) myaddr[0] & 0x00ff; | |
646 | break; | |
647 | case 1: | |
648 | c = 'b'; | |
649 | value |= (long) myaddr[0] & 0xff; | |
650 | break; | |
651 | } | |
652 | ||
653 | sprintf (cmd, "memory %c c 0x%x=0x%x", c, (int) memaddr, value); | |
654 | retval = ExeAppReq ("GDB", GWRITEMEM, cmd, &iob); | |
655 | if (retval == 0) | |
656 | sent = len; | |
657 | } | |
658 | else | |
659 | { | |
660 | sent = 0; | |
661 | do | |
662 | { | |
663 | iob.size = len > MAX_BLOCK_SIZE ? MAX_BLOCK_SIZE : len; | |
664 | iob.buf = myaddr; | |
665 | sprintf (cmd, "memory b c 0x%x=0x00 l=%d", (int)memaddr, iob.size); | |
666 | retval = ExeAppReq ("GDB", GWRITEBLOCK, cmd, &iob); | |
667 | if (retval != 0) | |
668 | break; | |
669 | len -= iob.size; | |
670 | memaddr += iob.size; | |
671 | myaddr += iob.size; | |
672 | sent += iob.size; | |
673 | } | |
674 | while (len > 0); | |
675 | } | |
6c310da8 SG |
676 | } |
677 | else | |
678 | { | |
679 | unsigned char *tmp; | |
e3ca310c | 680 | unsigned char *t; |
6c310da8 | 681 | int i; |
e3ca310c | 682 | |
6c310da8 | 683 | tmp = alloca (len + 100); |
e3ca310c | 684 | t = tmp; |
6c310da8 | 685 | memset (tmp + len, 0xff, 100); |
6c310da8 | 686 | |
e3ca310c KS |
687 | sent = 0; |
688 | do | |
689 | { | |
690 | iob.size = len > MAX_BLOCK_SIZE ? MAX_BLOCK_SIZE : len; | |
691 | iob.buf = tmp; | |
692 | sprintf (cmd, "memory b 0x%x l=%d", (int)memaddr, iob.size); | |
693 | retval = ExeAppReq ("GDB", GREADBLOCK, cmd, &iob); | |
694 | if (retval != 0) | |
695 | break; | |
696 | len -= iob.size; | |
697 | memaddr += iob.size; | |
698 | sent += iob.size; | |
699 | tmp += iob.size; | |
700 | } | |
701 | while (len > 0); | |
702 | ||
703 | if (retval == 0) | |
704 | { | |
705 | for (i = 0; i < 100; i++) | |
706 | { | |
707 | if (t[sent + i] != 0xff) | |
708 | { | |
709 | warning ("GREADBLOCK trashed bytes after transfer area."); | |
710 | break; | |
711 | } | |
712 | } | |
713 | memcpy (myaddr, t, sent); | |
714 | } | |
715 | } | |
716 | ||
717 | if (retval != 0) | |
718 | error ("3: ExeAppReq returned %d: cmd = %s", retval, cmd); | |
719 | ||
720 | return sent; | |
6c310da8 SG |
721 | } |
722 | ||
723 | static void | |
724 | v850ice_files_info (ignore) | |
725 | struct target_ops *ignore; | |
726 | { | |
727 | puts_filtered ("Debugging a target via the NEC V850 ICE.\n"); | |
728 | } | |
729 | ||
730 | static int | |
731 | v850ice_insert_breakpoint (addr, contents_cache) | |
732 | CORE_ADDR addr; | |
733 | char *contents_cache; | |
734 | { | |
735 | long retval; | |
736 | char cmd[100]; | |
e3ca310c KS |
737 | char buf[256]; |
738 | struct MessageIO iob; | |
6c310da8 | 739 | |
e3ca310c KS |
740 | iob.size = 0; |
741 | iob.buf = buf; | |
6c310da8 SG |
742 | sprintf (cmd, "%d, ", addr); |
743 | ||
e3ca310c | 744 | retval = ExeAppReq ("GDB", GSETBREAK, cmd, &iob); |
6c310da8 | 745 | if (retval) |
e3ca310c | 746 | error ("ExeAppReq (GSETBREAK) returned %d: cmd = %s", retval, cmd); |
6c310da8 SG |
747 | |
748 | return 0; | |
749 | } | |
750 | ||
751 | static int | |
752 | v850ice_remove_breakpoint (addr, contents_cache) | |
753 | CORE_ADDR addr; | |
754 | char *contents_cache; | |
755 | { | |
756 | long retval; | |
757 | char cmd[100]; | |
e3ca310c KS |
758 | char buf[256]; |
759 | struct MessageIO iob; | |
760 | ||
761 | iob.size = 0; | |
762 | iob.buf = buf; | |
6c310da8 SG |
763 | |
764 | sprintf (cmd, "%d, ", addr); | |
765 | ||
e3ca310c | 766 | retval = ExeAppReq ("GDB", GREMOVEBREAK, cmd, &iob); |
6c310da8 | 767 | if (retval) |
e3ca310c | 768 | error ("ExeAppReq (GREMOVEBREAK) returned %d: cmd = %s", retval, cmd); |
6c310da8 SG |
769 | |
770 | return 0; | |
771 | } | |
772 | ||
773 | static void | |
774 | v850ice_kill () | |
775 | { | |
776 | target_mourn_inferior (); | |
e3ca310c | 777 | inferior_pid = 0; |
6c310da8 SG |
778 | } |
779 | ||
780 | static void | |
781 | v850ice_mourn () | |
782 | { | |
783 | } | |
784 | ||
e3ca310c KS |
785 | static void |
786 | v850ice_load (filename, from_tty) | |
787 | char * filename; | |
788 | int from_tty; | |
789 | { | |
790 | struct MessageIO iob; | |
791 | char buf[256]; | |
792 | ||
793 | iob.size = 0; | |
794 | iob.buf = buf; | |
795 | generic_load(filename, from_tty); | |
67205639 | 796 | ExeAppReq ("GDB", GDOWNLOAD, filename, &iob); |
e3ca310c KS |
797 | } |
798 | ||
799 | static int | |
800 | ice_file (arg) | |
801 | char *arg; | |
802 | { | |
803 | char *s; | |
804 | ||
805 | target_detach (NULL, 0); | |
806 | pop_target (); | |
807 | ||
808 | printf_unfiltered ("\n"); | |
809 | ||
810 | s = arg; | |
811 | while (*s != '\0') | |
812 | { | |
813 | if (*s == '\\') | |
814 | *s = '/'; | |
815 | s++; | |
816 | } | |
817 | ||
818 | /* Safegaurd against confusing the breakpoint routines... */ | |
819 | delete_command(NULL, 0); | |
820 | ||
821 | /* Must supress from_tty, otherwise we could start asking if the | |
822 | user really wants to load a new symbol table, etc... */ | |
823 | printf_unfiltered ("Reading symbols from %s...", arg); | |
824 | exec_file_command (arg, 0); | |
825 | symbol_file_command (arg, 0); | |
826 | printf_unfiltered ("done\n"); | |
827 | ||
828 | /* exec_file_command will kill our target, so reinstall the ICE as | |
829 | the target. */ | |
830 | v850ice_open (NULL, 0); | |
6c310da8 | 831 | |
e3ca310c KS |
832 | togdb_force_update (); |
833 | return 1; | |
834 | } | |
835 | ||
836 | static int | |
837 | ice_cont (c) | |
838 | char *c; | |
839 | { | |
67205639 | 840 | printf_filtered ("continue (ice)"); |
4ce8d0e9 | 841 | ReplyMessage ((LRESULT) 1); |
67205639 | 842 | Tcl_Eval (gdbtk_interp, "gdb_immediate continue"); |
e3ca310c KS |
843 | return 1; |
844 | } | |
845 | ||
846 | static int | |
847 | ice_stepi (c) | |
848 | char *c; | |
849 | { | |
67205639 | 850 | char string[50] = "\0"; |
e3ca310c KS |
851 | int count = (int) c; |
852 | ||
67205639 | 853 | sprintf (string, "gdb_immediate stepi %d", count); |
e3ca310c | 854 | printf_unfiltered ("stepi (ice)\n"); |
e3ca310c | 855 | ReplyMessage ((LRESULT) 1); |
4ce8d0e9 | 856 | Tcl_Eval (gdbtk_interp, string); |
e3ca310c KS |
857 | return 1; |
858 | } | |
859 | ||
860 | static int | |
861 | ice_nexti (c) | |
862 | char *c; | |
863 | { | |
67205639 | 864 | char string[50] = "\0"; |
e3ca310c KS |
865 | int count = (int) c; |
866 | ||
67205639 | 867 | sprintf (string, "gdb_immediate nexti %d", count); |
e3ca310c | 868 | printf_unfiltered ("nexti (ice)\n"); |
4ce8d0e9 | 869 | ReplyMessage ((LRESULT) 1); |
67205639 | 870 | Tcl_Eval (gdbtk_interp, string); |
e3ca310c KS |
871 | return 1; |
872 | } | |
873 | ||
874 | static void | |
875 | v850ice_command (arg, from_tty) | |
876 | char *arg; | |
877 | int from_tty; | |
878 | { | |
879 | struct MessageIO iob; | |
880 | char buf[256]; | |
881 | ||
882 | iob.buf = buf; | |
883 | iob.size = 0; | |
884 | ExeAppReq ("GDB", GCOMMAND, arg, &iob); | |
885 | } | |
886 | ||
887 | static void | |
888 | togdb_force_update (void) | |
889 | { | |
890 | Tcl_Eval (gdbtk_interp, "gdbtk_update"); | |
891 | } | |
892 | ||
4ce8d0e9 KS |
893 | static void |
894 | view_source (addr) | |
895 | CORE_ADDR addr; | |
896 | { | |
897 | char c[256]; | |
898 | ||
899 | sprintf (c, "set src [lindex [manage find src] 0]\n$src location [gdb_loc *0x%x]", addr); | |
900 | Tcl_Eval (gdbtk_interp, c); | |
901 | } | |
902 | ||
e3ca310c | 903 | /* Define the target subroutine names */ |
c719b714 JM |
904 | |
905 | static void init_850ice_ops(void) | |
906 | { | |
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_detach = v850ice_detach; | |
914 | v850ice_ops.to_resume = v850ice_resume; | |
915 | v850ice_ops.to_wait = v850ice_wait; | |
916 | v850ice_ops.to_fetch_registers = v850ice_fetch_registers; | |
917 | v850ice_ops.to_store_registers = v850ice_store_registers; | |
918 | v850ice_ops.to_prepare_to_store = v850ice_prepare_to_store; | |
919 | v850ice_ops.to_xfer_memory = v850ice_xfer_memory; | |
920 | v850ice_ops.to_files_info = v850ice_files_info; | |
921 | v850ice_ops.to_insert_breakpoint = v850ice_insert_breakpoint; | |
922 | v850ice_ops.to_remove_breakpoint = v850ice_remove_breakpoint; | |
923 | v850ice_ops.to_terminal_init = NULL; | |
924 | v850ice_ops.to_terminal_inferior = NULL; | |
925 | v850ice_ops.to_terminal_ours_for_output = NULL; | |
926 | v850ice_ops.to_terminal_ours = NULL; | |
927 | v850ice_ops.to_terminal_info = NULL; | |
928 | v850ice_ops.to_kill = v850ice_kill; | |
e3ca310c | 929 | v850ice_ops.to_load = v850ice_load; |
c719b714 JM |
930 | v850ice_ops.to_lookup_symbol = NULL; |
931 | v850ice_ops.to_create_inferior = NULL; | |
932 | v850ice_ops.to_mourn_inferior = v850ice_mourn; | |
933 | v850ice_ops.to_can_run = 0; | |
934 | v850ice_ops.to_notice_signals = 0; | |
935 | v850ice_ops.to_thread_alive = NULL; | |
67205639 | 936 | v850ice_ops.to_stop = v850ice_stop; |
c719b714 JM |
937 | v850ice_ops.to_stratum = process_stratum; |
938 | v850ice_ops.DONT_USE = NULL; | |
939 | v850ice_ops.to_has_all_memory = 1; | |
940 | v850ice_ops.to_has_memory = 1; | |
941 | v850ice_ops.to_has_stack = 1; | |
942 | v850ice_ops.to_has_registers = 1; | |
943 | v850ice_ops.to_has_execution = 1; | |
944 | v850ice_ops.to_sections = NULL; | |
945 | v850ice_ops.to_sections_end = NULL; | |
946 | v850ice_ops.to_magic = OPS_MAGIC ; | |
947 | } | |
6c310da8 SG |
948 | |
949 | void | |
950 | _initialize_v850ice () | |
951 | { | |
e3ca310c | 952 | init_850ice_ops (); |
6c310da8 | 953 | add_target (&v850ice_ops); |
e3ca310c KS |
954 | |
955 | add_com ("ice", class_obscure, v850ice_command, | |
956 | "Send command to ICE"); | |
6c310da8 | 957 | } |