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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 */ | |
a14ed312 | 49 | extern void break_command (char *, int); |
6027a0b8 | 50 | |
a14ed312 | 51 | extern void stepi_command (char *, int); |
6027a0b8 | 52 | |
a14ed312 | 53 | extern void nexti_command (char *, int); |
6027a0b8 | 54 | |
a14ed312 | 55 | extern void continue_command (char *, int); |
6027a0b8 | 56 | |
507f3c78 | 57 | extern int (*ui_loop_hook) (int); |
6027a0b8 JM |
58 | |
59 | /* Prototypes for local functions */ | |
a14ed312 | 60 | static int init_hidden_window (void); |
6027a0b8 | 61 | |
a14ed312 | 62 | static LRESULT CALLBACK v850ice_wndproc (HWND, UINT, WPARAM, LPARAM); |
6027a0b8 | 63 | |
a14ed312 | 64 | static void v850ice_files_info (struct target_ops *ignore); |
6027a0b8 | 65 | |
a14ed312 KB |
66 | static int v850ice_xfer_memory (CORE_ADDR memaddr, char *myaddr, |
67 | int len, int should_write, | |
68 | struct target_ops *target); | |
6027a0b8 | 69 | |
a14ed312 | 70 | static void v850ice_prepare_to_store (void); |
6027a0b8 | 71 | |
a14ed312 | 72 | static void v850ice_fetch_registers (int regno); |
6027a0b8 | 73 | |
a14ed312 | 74 | static void v850ice_resume (int pid, int step, enum target_signal siggnal); |
6027a0b8 | 75 | |
a14ed312 | 76 | static void v850ice_open (char *name, int from_tty); |
6027a0b8 | 77 | |
a14ed312 | 78 | static void v850ice_close (int quitting); |
6027a0b8 | 79 | |
a14ed312 | 80 | static void v850ice_stop (void); |
6027a0b8 | 81 | |
a14ed312 | 82 | static void v850ice_store_registers (int regno); |
6027a0b8 | 83 | |
a14ed312 | 84 | static void v850ice_mourn (void); |
6027a0b8 | 85 | |
a14ed312 | 86 | static int v850ice_wait (int pid, struct target_waitstatus *status); |
6027a0b8 | 87 | |
a14ed312 | 88 | static void v850ice_kill (void); |
6027a0b8 | 89 | |
a14ed312 | 90 | static void v850ice_detach (char *args, int from_tty); |
6027a0b8 | 91 | |
a14ed312 | 92 | static int v850ice_insert_breakpoint (CORE_ADDR, char *); |
6027a0b8 | 93 | |
a14ed312 | 94 | static int v850ice_remove_breakpoint (CORE_ADDR, char *); |
6027a0b8 | 95 | |
a14ed312 | 96 | static void v850ice_command (char *, int); |
6027a0b8 | 97 | |
a14ed312 | 98 | static int ice_disassemble (unsigned long, int, char *); |
6027a0b8 | 99 | |
a14ed312 | 100 | static int ice_lookup_addr (unsigned long *, char *, char *); |
6027a0b8 | 101 | |
a14ed312 | 102 | static int ice_lookup_symbol (unsigned long, char *); |
6027a0b8 | 103 | |
a14ed312 | 104 | static void ice_SimulateDisassemble (char *, int); |
6027a0b8 | 105 | |
a14ed312 | 106 | static void ice_SimulateAddrLookup (char *, int); |
6027a0b8 | 107 | |
a14ed312 | 108 | static void ice_Simulate_SymLookup (char *, int); |
6027a0b8 | 109 | |
d9fcf2fb | 110 | static void ice_fputs (const char *, struct ui_file *); |
6027a0b8 | 111 | |
a14ed312 | 112 | static int ice_file (char *); |
6027a0b8 | 113 | |
a14ed312 | 114 | static int ice_cont (char *); |
6027a0b8 | 115 | |
a14ed312 | 116 | static int ice_stepi (char *); |
6027a0b8 | 117 | |
a14ed312 | 118 | static int ice_nexti (char *); |
6027a0b8 | 119 | |
a14ed312 | 120 | static void togdb_force_update (void); |
6027a0b8 | 121 | |
a14ed312 | 122 | static void view_source (CORE_ADDR); |
3fc11d3e | 123 | |
ac1d1083 | 124 | static void do_gdb (char *, char *, void (*func) (char *, int), int); |
6027a0b8 JM |
125 | |
126 | ||
127 | /* Globals */ | |
c5aa993b | 128 | static HWND hidden_hwnd; /* HWND for messages */ |
6027a0b8 | 129 | |
ac1d1083 | 130 | long (__stdcall * ExeAppReq) (char *, long, char *, struct MessageIO *); |
6027a0b8 | 131 | |
ac1d1083 | 132 | long (__stdcall * RegisterClient) (HWND); |
6027a0b8 | 133 | |
ac1d1083 | 134 | long (__stdcall * UnregisterClient) (void); |
6027a0b8 | 135 | |
3fc11d3e | 136 | extern Tcl_Interp *gdbtk_interp; |
6027a0b8 JM |
137 | |
138 | /* Globals local to this file only */ | |
c5aa993b | 139 | static int ice_open = 0; /* Is ICE open? */ |
6027a0b8 | 140 | |
c5aa993b | 141 | static char *v850_CB_Result; /* special char array for saving 'callback' results */ |
6027a0b8 | 142 | |
c5aa993b | 143 | static int SimulateCallback; /* simulate a callback event */ |
6027a0b8 | 144 | |
c5aa993b JM |
145 | #define MAX_BLOCK_SIZE 64*1024 /* Cannot transfer memory in blocks bigger |
146 | than this */ | |
6027a0b8 | 147 | /* MDI/ICE Message IDs */ |
c5aa993b JM |
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 */ | |
6027a0b8 JM |
163 | |
164 | /* GCHECKSTATUS return codes: */ | |
165 | #define ICE_Idle 0x00 | |
c5aa993b JM |
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 */ | |
6027a0b8 JM |
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 | |
180 | #define WM_SOURCE WM_USER+105 | |
181 | ||
182 | /* STATE_CHANGE codes */ | |
c5aa993b JM |
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 */ | |
6027a0b8 JM |
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 () | |
196 | { | |
197 | WNDCLASS class; | |
198 | ||
199 | if (hidden_hwnd != NULL) | |
200 | return 1; | |
201 | ||
202 | class.style = 0; | |
203 | class.cbClsExtra = 0; | |
204 | class.cbWndExtra = 0; | |
205 | class.hInstance = GetModuleHandle (0); | |
206 | class.hbrBackground = NULL; | |
207 | class.lpszMenuName = NULL; | |
208 | class.lpszClassName = "gdb_v850ice"; | |
209 | class.lpfnWndProc = v850ice_wndproc; | |
210 | class.hIcon = NULL; | |
211 | class.hCursor = NULL; | |
212 | ||
c5aa993b | 213 | if (!RegisterClass (&class)) |
6027a0b8 JM |
214 | return 0; |
215 | ||
216 | hidden_hwnd = CreateWindow ("gdb_v850ice", "gdb_v850ice", WS_TILED, | |
c5aa993b JM |
217 | 0, 0, 0, 0, NULL, NULL, class.hInstance, |
218 | NULL); | |
6027a0b8 JM |
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, | |
c5aa993b | 226 | 0, buf, 200, NULL); |
6027a0b8 JM |
227 | printf_unfiltered ("Could not create window: %s", buf); |
228 | return 0; | |
229 | } | |
230 | ||
231 | return 1; | |
232 | } | |
233 | ||
234 | /* | |
235 | This function is installed as the message handler for the hidden window | |
236 | which QBox will use to communicate with gdb. 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 | |
c5aa993b | 243 | */ |
6027a0b8 JM |
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; | |
261 | case WM_SOURCE: | |
3fc11d3e | 262 | view_source ((CORE_ADDR) lParam); |
6027a0b8 JM |
263 | break; |
264 | case WM_STATE_CHANGE: | |
265 | switch (wParam) | |
c5aa993b JM |
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 ((catch_errors_ftype *) 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 ((catch_errors_ftype *) 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 ((catch_errors_ftype *) 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 ((catch_errors_ftype *) ice_nexti, (PTR) (int) lParam, "", | |
305 | RETURN_MASK_ALL)) | |
306 | printf_unfiltered ("nexti errored\n"); | |
307 | result = TRUE; | |
308 | break; | |
309 | } | |
6027a0b8 JM |
310 | } |
311 | ||
312 | if (result == FALSE) | |
313 | return DefWindowProc (hwnd, message, wParam, lParam); | |
314 | ||
315 | return FALSE; | |
316 | } | |
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 | { | |
325 | HINSTANCE handle; | |
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 | ||
341 | /* Initialize everything necessary to facilitate communication | |
342 | between QBox, gdb, and the DLLs which control the ICE */ | |
343 | if (ExeAppReq == NULL) | |
344 | { | |
345 | handle = LoadLibrary ("necmsg.dll"); | |
346 | if (handle == NULL) | |
c5aa993b | 347 | error ("Cannot load necmsg.dll"); |
6027a0b8 | 348 | |
ac1d1083 | 349 | ExeAppReq = (long (*) (char *, long, char *, struct MessageIO *)) |
c5aa993b | 350 | GetProcAddress (handle, "ExeAppReq"); |
ac1d1083 | 351 | RegisterClient = (long (*) (HWND)) |
c5aa993b | 352 | GetProcAddress (handle, "RegisterClient"); |
ac1d1083 | 353 | UnregisterClient = (long (*) (void)) |
c5aa993b | 354 | GetProcAddress (handle, "UnregisterClient"); |
6027a0b8 JM |
355 | |
356 | if (ExeAppReq == NULL || RegisterClient == NULL || UnregisterClient == NULL) | |
c5aa993b | 357 | error ("Could not find requisite functions in necmsg.dll."); |
6027a0b8 JM |
358 | |
359 | if (!init_hidden_window ()) | |
c5aa993b | 360 | error ("could not initialize message handling"); |
6027a0b8 JM |
361 | } |
362 | ||
363 | /* Tell the DLL we are here */ | |
364 | RegisterClient (hidden_hwnd); | |
365 | ||
366 | ice_open = 1; | |
367 | ||
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. */ | |
374 | inferior_pid = 42000; | |
375 | ||
376 | start_remote (); | |
377 | return; | |
378 | } | |
379 | ||
380 | /* Clean up connection to a remote debugger. */ | |
381 | ||
382 | /* ARGSUSED */ | |
383 | static void | |
384 | v850ice_close (quitting) | |
385 | int quitting; | |
386 | { | |
387 | if (ice_open) | |
388 | { | |
389 | UnregisterClient (); | |
390 | ice_open = 0; | |
391 | inferior_pid = 0; | |
392 | } | |
393 | } | |
394 | ||
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 | ||
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 | { | |
c5aa993b JM |
423 | long retval; |
424 | char buf[256]; | |
425 | struct MessageIO iob; | |
6027a0b8 JM |
426 | |
427 | iob.size = 0; | |
c5aa993b | 428 | iob.buf = buf; |
6027a0b8 JM |
429 | |
430 | if (step) | |
431 | retval = ExeAppReq ("GDB", GSINGLESTEP, "step", &iob); | |
432 | else | |
433 | retval = ExeAppReq ("GDB", GRESUME, "run", &iob); | |
434 | ||
435 | if (retval) | |
436 | error ("ExeAppReq (step = %d) returned %d", step, retval); | |
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 | { | |
449 | long v850_status; | |
450 | char buf[256]; | |
c5aa993b | 451 | struct MessageIO iob; |
6027a0b8 JM |
452 | int done = 0; |
453 | int count = 0; | |
454 | ||
455 | iob.size = 0; | |
c5aa993b JM |
456 | iob.buf = buf; |
457 | ||
6027a0b8 JM |
458 | do |
459 | { | |
460 | if (count++ % 100000) | |
c5aa993b JM |
461 | { |
462 | ui_loop_hook (0); | |
6027a0b8 | 463 | count = 0; |
c5aa993b | 464 | } |
6027a0b8 JM |
465 | |
466 | v850_status = ExeAppReq ("GDB", GCHECKSTATUS, NULL, &iob); | |
467 | ||
468 | switch (v850_status) | |
c5aa993b JM |
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 | } | |
6027a0b8 JM |
496 | } |
497 | while (!done); | |
c5aa993b | 498 | |
6027a0b8 JM |
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 (REGISTER_NAME (regno)[0] == 's' | |
510 | && REGISTER_NAME (regno)[1] == 'r') | |
511 | return 0; | |
512 | else | |
513 | sprintf (buf, "%s", REGISTER_NAME (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]; | |
530 | struct MessageIO iob; | |
531 | unsigned long regval; | |
532 | char *p; | |
533 | ||
534 | if (regno == -1) | |
535 | { | |
536 | for (regno = 0; regno < NUM_REGS; regno++) | |
c5aa993b | 537 | v850ice_fetch_registers (regno); |
6027a0b8 JM |
538 | return; |
539 | } | |
540 | ||
541 | strcpy (cmd, "reg "); | |
542 | if (!convert_register (regno, &cmd[4])) | |
543 | return; | |
544 | ||
545 | iob.size = sizeof val; | |
546 | iob.buf = val; | |
547 | retval = ExeAppReq ("GDB", GREADREG, cmd, &iob); | |
548 | if (retval) | |
549 | error ("1: ExeAppReq returned %d: cmd = %s", retval, cmd); | |
550 | ||
551 | regval = strtoul (val, NULL, 16); | |
552 | if (regval == 0 && p == val) | |
553 | error ("v850ice_fetch_registers (%d): bad value from ICE: %s.", | |
c5aa993b | 554 | regno, val); |
6027a0b8 JM |
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]; | |
569 | unsigned long regval; | |
570 | char buf[256]; | |
571 | struct MessageIO iob; | |
572 | iob.size = 0; | |
573 | iob.buf = buf; | |
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)], | |
c5aa993b | 583 | REGISTER_RAW_SIZE (regno)); |
6027a0b8 JM |
584 | strcpy (cmd, "reg "); |
585 | if (!convert_register (regno, &cmd[4])) | |
586 | return; | |
587 | sprintf (cmd + strlen (cmd), "=0x%x", regval); | |
588 | ||
589 | retval = ExeAppReq ("GDB", GWRITEREG, cmd, &iob); | |
590 | if (retval) | |
591 | error ("2: ExeAppReq returned %d: cmd = %s", retval, cmd); | |
592 | } | |
593 | ||
594 | /* Prepare to store registers. Nothing to do here, since the ICE can write one | |
595 | register at a time. */ | |
596 | ||
c5aa993b | 597 | static void |
6027a0b8 JM |
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 | |
604 | nonzero. Returns length of data written or read; 0 for error. | |
605 | ||
606 | We can only read/write MAX_BLOCK_SIZE bytes at a time, though, or the DLL | |
607 | dies */ | |
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; | |
c5aa993b | 615 | struct target_ops *target; /* ignored */ |
6027a0b8 JM |
616 | { |
617 | long retval; | |
618 | char cmd[100]; | |
619 | struct MessageIO iob; | |
620 | int sent; | |
621 | ||
622 | if (should_write) | |
623 | { | |
624 | if (len == 4 || len == 2 || len == 1) | |
c5aa993b JM |
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 | break; | |
643 | case 2: | |
644 | c = 'h'; | |
645 | value |= (long) ((myaddr[1] << 8) & 0xff00); | |
646 | value |= (long) (myaddr[0] & 0x00ff); | |
6027a0b8 | 647 | break; |
c5aa993b JM |
648 | case 1: |
649 | c = 'b'; | |
650 | value |= (long) (myaddr[0] & 0xff); | |
651 | break; | |
652 | } | |
653 | ||
654 | sprintf (cmd, "memory %c c 0x%x=0x%x", c, (int) memaddr, value); | |
655 | retval = ExeAppReq ("GDB", GWRITEMEM, cmd, &iob); | |
656 | if (retval == 0) | |
657 | sent = len; | |
658 | } | |
659 | else | |
660 | { | |
661 | sent = 0; | |
662 | do | |
663 | { | |
664 | iob.size = len > MAX_BLOCK_SIZE ? MAX_BLOCK_SIZE : len; | |
665 | iob.buf = myaddr; | |
666 | sprintf (cmd, "memory b c 0x%x=0x00 l=%d", (int) memaddr, iob.size); | |
667 | retval = ExeAppReq ("GDB", GWRITEBLOCK, cmd, &iob); | |
668 | if (retval != 0) | |
669 | break; | |
670 | len -= iob.size; | |
671 | memaddr += iob.size; | |
672 | myaddr += iob.size; | |
673 | sent += iob.size; | |
674 | } | |
675 | while (len > 0); | |
676 | } | |
6027a0b8 JM |
677 | } |
678 | else | |
679 | { | |
680 | unsigned char *tmp; | |
681 | unsigned char *t; | |
682 | int i; | |
c5aa993b | 683 | |
6027a0b8 JM |
684 | tmp = alloca (len + 100); |
685 | t = tmp; | |
686 | memset (tmp + len, 0xff, 100); | |
687 | ||
688 | sent = 0; | |
689 | do | |
c5aa993b JM |
690 | { |
691 | iob.size = len > MAX_BLOCK_SIZE ? MAX_BLOCK_SIZE : len; | |
692 | iob.buf = tmp; | |
693 | sprintf (cmd, "memory b 0x%x l=%d", (int) memaddr, iob.size); | |
694 | retval = ExeAppReq ("GDB", GREADBLOCK, cmd, &iob); | |
695 | if (retval != 0) | |
696 | break; | |
697 | len -= iob.size; | |
698 | memaddr += iob.size; | |
699 | sent += iob.size; | |
700 | tmp += iob.size; | |
701 | } | |
6027a0b8 JM |
702 | while (len > 0); |
703 | ||
704 | if (retval == 0) | |
c5aa993b JM |
705 | { |
706 | for (i = 0; i < 100; i++) | |
707 | { | |
708 | if (t[sent + i] != 0xff) | |
709 | { | |
710 | warning ("GREADBLOCK trashed bytes after transfer area."); | |
711 | break; | |
712 | } | |
713 | } | |
714 | memcpy (myaddr, t, sent); | |
715 | } | |
6027a0b8 | 716 | } |
c5aa993b | 717 | |
6027a0b8 JM |
718 | if (retval != 0) |
719 | error ("3: ExeAppReq returned %d: cmd = %s", retval, cmd); | |
c5aa993b | 720 | |
6027a0b8 JM |
721 | return sent; |
722 | } | |
723 | ||
724 | static void | |
725 | v850ice_files_info (ignore) | |
726 | struct target_ops *ignore; | |
727 | { | |
728 | puts_filtered ("Debugging a target via the NEC V850 ICE.\n"); | |
729 | } | |
730 | ||
731 | static int | |
732 | v850ice_insert_breakpoint (addr, contents_cache) | |
733 | CORE_ADDR addr; | |
734 | char *contents_cache; | |
735 | { | |
736 | long retval; | |
737 | char cmd[100]; | |
738 | char buf[256]; | |
739 | struct MessageIO iob; | |
740 | ||
741 | iob.size = 0; | |
c5aa993b | 742 | iob.buf = buf; |
6027a0b8 JM |
743 | sprintf (cmd, "%d, ", addr); |
744 | ||
745 | retval = ExeAppReq ("GDB", GSETBREAK, cmd, &iob); | |
746 | if (retval) | |
747 | error ("ExeAppReq (GSETBREAK) returned %d: cmd = %s", retval, cmd); | |
748 | ||
749 | return 0; | |
750 | } | |
751 | ||
752 | static int | |
753 | v850ice_remove_breakpoint (addr, contents_cache) | |
754 | CORE_ADDR addr; | |
755 | char *contents_cache; | |
756 | { | |
757 | long retval; | |
758 | char cmd[100]; | |
759 | char buf[256]; | |
760 | struct MessageIO iob; | |
761 | ||
762 | iob.size = 0; | |
c5aa993b | 763 | iob.buf = buf; |
6027a0b8 JM |
764 | |
765 | sprintf (cmd, "%d, ", addr); | |
766 | ||
767 | retval = ExeAppReq ("GDB", GREMOVEBREAK, cmd, &iob); | |
768 | if (retval) | |
769 | error ("ExeAppReq (GREMOVEBREAK) returned %d: cmd = %s", retval, cmd); | |
770 | ||
771 | return 0; | |
772 | } | |
773 | ||
774 | static void | |
775 | v850ice_kill () | |
776 | { | |
777 | target_mourn_inferior (); | |
778 | inferior_pid = 0; | |
779 | } | |
780 | ||
781 | static void | |
782 | v850ice_mourn () | |
783 | { | |
784 | } | |
785 | ||
786 | static void | |
787 | v850ice_load (filename, from_tty) | |
c5aa993b JM |
788 | char *filename; |
789 | int from_tty; | |
6027a0b8 JM |
790 | { |
791 | struct MessageIO iob; | |
792 | char buf[256]; | |
793 | ||
794 | iob.size = 0; | |
c5aa993b JM |
795 | iob.buf = buf; |
796 | generic_load (filename, from_tty); | |
6027a0b8 JM |
797 | ExeAppReq ("GDB", GDOWNLOAD, filename, &iob); |
798 | } | |
799 | ||
800 | static int | |
801 | ice_file (arg) | |
802 | char *arg; | |
803 | { | |
804 | char *s; | |
c5aa993b | 805 | |
6027a0b8 JM |
806 | target_detach (NULL, 0); |
807 | pop_target (); | |
808 | ||
809 | printf_unfiltered ("\n"); | |
810 | ||
811 | s = arg; | |
812 | while (*s != '\0') | |
813 | { | |
814 | if (*s == '\\') | |
c5aa993b | 815 | *s = '/'; |
6027a0b8 JM |
816 | s++; |
817 | } | |
818 | ||
819 | /* Safegaurd against confusing the breakpoint routines... */ | |
c5aa993b | 820 | delete_command (NULL, 0); |
6027a0b8 JM |
821 | |
822 | /* Must supress from_tty, otherwise we could start asking if the | |
823 | user really wants to load a new symbol table, etc... */ | |
824 | printf_unfiltered ("Reading symbols from %s...", arg); | |
825 | exec_file_command (arg, 0); | |
826 | symbol_file_command (arg, 0); | |
827 | printf_unfiltered ("done\n"); | |
828 | ||
829 | /* exec_file_command will kill our target, so reinstall the ICE as | |
830 | the target. */ | |
831 | v850ice_open (NULL, 0); | |
832 | ||
833 | togdb_force_update (); | |
834 | return 1; | |
835 | } | |
836 | ||
837 | static int | |
838 | ice_cont (c) | |
c5aa993b | 839 | char *c; |
6027a0b8 JM |
840 | { |
841 | printf_filtered ("continue (ice)\n"); | |
842 | ReplyMessage ((LRESULT) 1); | |
843 | ||
3fc11d3e JM |
844 | if (gdbtk_interp == NULL) |
845 | { | |
6027a0b8 | 846 | continue_command (NULL, 1); |
3fc11d3e JM |
847 | } |
848 | else | |
849 | Tcl_Eval (gdbtk_interp, "gdb_immediate continue"); | |
6027a0b8 JM |
850 | |
851 | return 1; | |
852 | } | |
853 | ||
854 | static void | |
855 | do_gdb (cmd, str, func, count) | |
856 | char *cmd; | |
857 | char *str; | |
507f3c78 | 858 | void (*func) (char *, int); |
6027a0b8 JM |
859 | int count; |
860 | { | |
861 | ReplyMessage ((LRESULT) 1); | |
862 | ||
863 | while (count--) | |
864 | { | |
865 | printf_unfiltered (str); | |
866 | ||
3fc11d3e JM |
867 | if (gdbtk_interp == NULL) |
868 | { | |
6027a0b8 | 869 | func (NULL, 0); |
3fc11d3e JM |
870 | } |
871 | else | |
872 | Tcl_Eval (gdbtk_interp, cmd); | |
6027a0b8 JM |
873 | } |
874 | } | |
875 | ||
876 | ||
877 | static int | |
878 | ice_stepi (c) | |
c5aa993b | 879 | char *c; |
6027a0b8 JM |
880 | { |
881 | int count = (int) c; | |
882 | ||
883 | do_gdb ("gdb_immediate stepi", "stepi (ice)\n", stepi_command, count); | |
884 | return 1; | |
885 | } | |
886 | ||
887 | static int | |
888 | ice_nexti (c) | |
c5aa993b | 889 | char *c; |
6027a0b8 JM |
890 | { |
891 | int count = (int) c; | |
892 | ||
893 | do_gdb ("gdb_immediate nexti", "nexti (ice)\n", nexti_command, count); | |
894 | return 1; | |
895 | } | |
896 | ||
897 | static void | |
898 | v850ice_command (arg, from_tty) | |
c5aa993b JM |
899 | char *arg; |
900 | int from_tty; | |
6027a0b8 JM |
901 | { |
902 | struct MessageIO iob; | |
903 | char buf[256]; | |
904 | ||
905 | iob.buf = buf; | |
906 | iob.size = 0; | |
907 | ExeAppReq ("GDB", GCOMMAND, arg, &iob); | |
908 | } | |
909 | ||
910 | static void | |
911 | togdb_force_update (void) | |
912 | { | |
3fc11d3e JM |
913 | if (gdbtk_interp != NULL) |
914 | Tcl_Eval (gdbtk_interp, "gdbtk_update"); | |
6027a0b8 JM |
915 | } |
916 | ||
3fc11d3e JM |
917 | static void |
918 | view_source (addr) | |
919 | CORE_ADDR addr; | |
920 | { | |
921 | char c[256]; | |
922 | ||
923 | if (gdbtk_interp != NULL) | |
924 | { | |
925 | sprintf (c, "catch {set src [lindex [ManagedWin::find SrcWin] 0]\n$src location BROWSE [gdb_loc *0x%x]}", addr); | |
926 | Tcl_Eval (gdbtk_interp, c); | |
927 | } | |
928 | } | |
6027a0b8 JM |
929 | |
930 | /* Define the target subroutine names */ | |
931 | ||
c5aa993b JM |
932 | static void |
933 | init_850ice_ops (void) | |
6027a0b8 | 934 | { |
c5aa993b JM |
935 | v850ice_ops.to_shortname = "ice"; |
936 | v850ice_ops.to_longname = "NEC V850 ICE interface"; | |
937 | v850ice_ops.to_doc = "Debug a system controlled by a NEC 850 ICE."; | |
938 | v850ice_ops.to_open = v850ice_open; | |
939 | v850ice_ops.to_close = v850ice_close; | |
940 | v850ice_ops.to_attach = NULL; | |
941 | v850ice_ops.to_post_attach = NULL; | |
942 | v850ice_ops.to_require_attach = NULL; | |
943 | v850ice_ops.to_detach = v850ice_detach; | |
944 | v850ice_ops.to_require_detach = NULL; | |
945 | v850ice_ops.to_resume = v850ice_resume; | |
946 | v850ice_ops.to_wait = v850ice_wait; | |
947 | v850ice_ops.to_post_wait = NULL; | |
948 | v850ice_ops.to_fetch_registers = v850ice_fetch_registers; | |
949 | v850ice_ops.to_store_registers = v850ice_store_registers; | |
950 | v850ice_ops.to_prepare_to_store = v850ice_prepare_to_store; | |
951 | v850ice_ops.to_xfer_memory = v850ice_xfer_memory; | |
952 | v850ice_ops.to_files_info = v850ice_files_info; | |
953 | v850ice_ops.to_insert_breakpoint = v850ice_insert_breakpoint; | |
954 | v850ice_ops.to_remove_breakpoint = v850ice_remove_breakpoint; | |
955 | v850ice_ops.to_terminal_init = NULL; | |
956 | v850ice_ops.to_terminal_inferior = NULL; | |
957 | v850ice_ops.to_terminal_ours_for_output = NULL; | |
958 | v850ice_ops.to_terminal_ours = NULL; | |
959 | v850ice_ops.to_terminal_info = NULL; | |
960 | v850ice_ops.to_kill = v850ice_kill; | |
961 | v850ice_ops.to_load = v850ice_load; | |
962 | v850ice_ops.to_lookup_symbol = NULL; | |
963 | v850ice_ops.to_create_inferior = NULL; | |
964 | v850ice_ops.to_mourn_inferior = v850ice_mourn; | |
965 | v850ice_ops.to_can_run = 0; | |
966 | v850ice_ops.to_notice_signals = 0; | |
967 | v850ice_ops.to_thread_alive = NULL; | |
968 | v850ice_ops.to_stop = v850ice_stop; | |
6027a0b8 | 969 | v850ice_ops.to_pid_to_exec_file = NULL; |
c5aa993b JM |
970 | v850ice_ops.to_core_file_to_sym_file = NULL; |
971 | v850ice_ops.to_stratum = process_stratum; | |
972 | v850ice_ops.DONT_USE = NULL; | |
973 | v850ice_ops.to_has_all_memory = 1; | |
974 | v850ice_ops.to_has_memory = 1; | |
975 | v850ice_ops.to_has_stack = 1; | |
976 | v850ice_ops.to_has_registers = 1; | |
977 | v850ice_ops.to_has_execution = 1; | |
978 | v850ice_ops.to_sections = NULL; | |
979 | v850ice_ops.to_sections_end = NULL; | |
980 | v850ice_ops.to_magic = OPS_MAGIC; | |
6027a0b8 JM |
981 | } |
982 | ||
983 | void | |
984 | _initialize_v850ice () | |
985 | { | |
986 | init_850ice_ops (); | |
987 | add_target (&v850ice_ops); | |
988 | ||
989 | add_com ("ice", class_obscure, v850ice_command, | |
c5aa993b | 990 | "Send command to ICE"); |
6027a0b8 | 991 | } |