Commit | Line | Data |
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6027a0b8 | 1 | /* ICE interface for the NEC V850 for GDB, the GNU debugger. |
4e052eda | 2 | Copyright 1996, 2000, 2001 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" | |
4e052eda | 33 | #include "regcache.h" |
6027a0b8 | 34 | |
3fc11d3e | 35 | #include <tcl.h> |
6027a0b8 | 36 | #include <windows.h> |
c5aa993b JM |
37 | #include <winuser.h> /* for WM_USER */ |
38 | ||
39 | extern unsigned long int strtoul (const char *nptr, char **endptr, | |
40 | int base); | |
6027a0b8 | 41 | |
6027a0b8 JM |
42 | /* Local data definitions */ |
43 | struct MessageIO | |
c5aa993b JM |
44 | { |
45 | int size; /* length of input or output in bytes */ | |
46 | char *buf; /* buffer having the input/output information */ | |
47 | }; | |
6027a0b8 JM |
48 | |
49 | /* Prototypes for functions located in other files */ | |
a14ed312 | 50 | extern void break_command (char *, int); |
6027a0b8 | 51 | |
a14ed312 | 52 | extern void stepi_command (char *, int); |
6027a0b8 | 53 | |
a14ed312 | 54 | extern void nexti_command (char *, int); |
6027a0b8 | 55 | |
a14ed312 | 56 | extern void continue_command (char *, int); |
6027a0b8 | 57 | |
507f3c78 | 58 | extern int (*ui_loop_hook) (int); |
6027a0b8 JM |
59 | |
60 | /* Prototypes for local functions */ | |
a14ed312 | 61 | static int init_hidden_window (void); |
6027a0b8 | 62 | |
a14ed312 | 63 | static LRESULT CALLBACK v850ice_wndproc (HWND, UINT, WPARAM, LPARAM); |
6027a0b8 | 64 | |
a14ed312 | 65 | static void v850ice_files_info (struct target_ops *ignore); |
6027a0b8 | 66 | |
a14ed312 KB |
67 | static int v850ice_xfer_memory (CORE_ADDR memaddr, char *myaddr, |
68 | int len, int should_write, | |
69 | struct target_ops *target); | |
6027a0b8 | 70 | |
a14ed312 | 71 | static void v850ice_prepare_to_store (void); |
6027a0b8 | 72 | |
a14ed312 | 73 | static void v850ice_fetch_registers (int regno); |
6027a0b8 | 74 | |
a14ed312 | 75 | static void v850ice_resume (int pid, int step, enum target_signal siggnal); |
6027a0b8 | 76 | |
a14ed312 | 77 | static void v850ice_open (char *name, int from_tty); |
6027a0b8 | 78 | |
a14ed312 | 79 | static void v850ice_close (int quitting); |
6027a0b8 | 80 | |
a14ed312 | 81 | static void v850ice_stop (void); |
6027a0b8 | 82 | |
a14ed312 | 83 | static void v850ice_store_registers (int regno); |
6027a0b8 | 84 | |
a14ed312 | 85 | static void v850ice_mourn (void); |
6027a0b8 | 86 | |
a14ed312 | 87 | static int v850ice_wait (int pid, struct target_waitstatus *status); |
6027a0b8 | 88 | |
a14ed312 | 89 | static void v850ice_kill (void); |
6027a0b8 | 90 | |
a14ed312 | 91 | static void v850ice_detach (char *args, int from_tty); |
6027a0b8 | 92 | |
a14ed312 | 93 | static int v850ice_insert_breakpoint (CORE_ADDR, char *); |
6027a0b8 | 94 | |
a14ed312 | 95 | static int v850ice_remove_breakpoint (CORE_ADDR, char *); |
6027a0b8 | 96 | |
a14ed312 | 97 | static void v850ice_command (char *, int); |
6027a0b8 | 98 | |
a14ed312 | 99 | static int ice_disassemble (unsigned long, int, char *); |
6027a0b8 | 100 | |
a14ed312 | 101 | static int ice_lookup_addr (unsigned long *, char *, char *); |
6027a0b8 | 102 | |
a14ed312 | 103 | static int ice_lookup_symbol (unsigned long, char *); |
6027a0b8 | 104 | |
a14ed312 | 105 | static void ice_SimulateDisassemble (char *, int); |
6027a0b8 | 106 | |
a14ed312 | 107 | static void ice_SimulateAddrLookup (char *, int); |
6027a0b8 | 108 | |
a14ed312 | 109 | static void ice_Simulate_SymLookup (char *, int); |
6027a0b8 | 110 | |
d9fcf2fb | 111 | static void ice_fputs (const char *, struct ui_file *); |
6027a0b8 | 112 | |
a14ed312 | 113 | static int ice_file (char *); |
6027a0b8 | 114 | |
a14ed312 | 115 | static int ice_cont (char *); |
6027a0b8 | 116 | |
a14ed312 | 117 | static int ice_stepi (char *); |
6027a0b8 | 118 | |
a14ed312 | 119 | static int ice_nexti (char *); |
6027a0b8 | 120 | |
a14ed312 | 121 | static void togdb_force_update (void); |
6027a0b8 | 122 | |
a14ed312 | 123 | static void view_source (CORE_ADDR); |
3fc11d3e | 124 | |
ac1d1083 | 125 | static void do_gdb (char *, char *, void (*func) (char *, int), int); |
6027a0b8 JM |
126 | |
127 | ||
128 | /* Globals */ | |
c5aa993b | 129 | static HWND hidden_hwnd; /* HWND for messages */ |
6027a0b8 | 130 | |
ac1d1083 | 131 | long (__stdcall * ExeAppReq) (char *, long, char *, struct MessageIO *); |
6027a0b8 | 132 | |
ac1d1083 | 133 | long (__stdcall * RegisterClient) (HWND); |
6027a0b8 | 134 | |
ac1d1083 | 135 | long (__stdcall * UnregisterClient) (void); |
6027a0b8 | 136 | |
3fc11d3e | 137 | extern Tcl_Interp *gdbtk_interp; |
6027a0b8 JM |
138 | |
139 | /* Globals local to this file only */ | |
c5aa993b | 140 | static int ice_open = 0; /* Is ICE open? */ |
6027a0b8 | 141 | |
c5aa993b | 142 | static char *v850_CB_Result; /* special char array for saving 'callback' results */ |
6027a0b8 | 143 | |
c5aa993b | 144 | static int SimulateCallback; /* simulate a callback event */ |
6027a0b8 | 145 | |
c5aa993b JM |
146 | #define MAX_BLOCK_SIZE 64*1024 /* Cannot transfer memory in blocks bigger |
147 | than this */ | |
6027a0b8 | 148 | /* MDI/ICE Message IDs */ |
c5aa993b JM |
149 | #define GSINGLESTEP 0x200 /* single-step target */ |
150 | #define GRESUME 0x201 /* resume target */ | |
151 | #define GREADREG 0x202 /* read a register */ | |
152 | #define GWRITEREG 0x203 /* write a register */ | |
153 | #define GWRITEBLOCK 0x204 /* write a block of memory */ | |
154 | #define GREADBLOCK 0x205 /* read a block of memory */ | |
155 | #define GSETBREAK 0x206 /* set a breakpoint */ | |
156 | #define GREMOVEBREAK 0x207 /* remove a breakpoint */ | |
157 | #define GHALT 0x208 /* ??? */ | |
158 | #define GCHECKSTATUS 0x209 /* check status of ICE */ | |
159 | #define GMDIREPLY 0x210 /* Reply for previous query - NOT USED */ | |
160 | #define GDOWNLOAD 0x211 /* something for MDI */ | |
161 | #define GCOMMAND 0x212 /* execute command in ice */ | |
162 | #define GLOADFILENAME 0x213 /* retrieve load filename */ | |
163 | #define GWRITEMEM 0x214 /* write word, half-word, or byte */ | |
6027a0b8 JM |
164 | |
165 | /* GCHECKSTATUS return codes: */ | |
166 | #define ICE_Idle 0x00 | |
c5aa993b JM |
167 | #define ICE_Breakpoint 0x01 /* hit a breakpoint */ |
168 | #define ICE_Stepped 0x02 /* have stepped */ | |
169 | #define ICE_Exception 0x03 /* have exception */ | |
170 | #define ICE_Halted 0x04 /* hit a user halt */ | |
171 | #define ICE_Exited 0x05 /* called exit */ | |
172 | #define ICE_Terminated 0x06 /* user terminated */ | |
6027a0b8 JM |
173 | #define ICE_Running 0x07 |
174 | #define ICE_Unknown 0x99 | |
175 | ||
176 | /* Windows messages */ | |
177 | #define WM_STATE_CHANGE WM_USER+101 | |
178 | #define WM_SYM_TO_ADDR WM_USER+102 | |
179 | #define WM_ADDR_TO_SYM WM_USER+103 | |
180 | #define WM_DISASSEMBLY WM_USER+104 | |
181 | #define WM_SOURCE WM_USER+105 | |
182 | ||
183 | /* STATE_CHANGE codes */ | |
c5aa993b JM |
184 | #define STATE_CHANGE_REGS 1 /* Register(s) changed */ |
185 | #define STATE_CHANGE_LOAD 2 /* HW reset */ | |
186 | #define STATE_CHANGE_RESET 3 /* Load new file */ | |
187 | #define STATE_CHANGE_CONT 4 /* Run target */ | |
188 | #define STATE_CHANGE_STOP 5 /* Stop target */ | |
189 | #define STATE_CHANGE_STEPI 6 /* Stepi target */ | |
190 | #define STATE_CHANGE_NEXTI 7 /* Nexti target */ | |
6027a0b8 JM |
191 | |
192 | static struct target_ops v850ice_ops; /* Forward decl */ | |
193 | ||
194 | /* This function creates a hidden window */ | |
195 | static int | |
fba45db2 | 196 | init_hidden_window (void) |
6027a0b8 JM |
197 | { |
198 | WNDCLASS class; | |
199 | ||
200 | if (hidden_hwnd != NULL) | |
201 | return 1; | |
202 | ||
203 | class.style = 0; | |
204 | class.cbClsExtra = 0; | |
205 | class.cbWndExtra = 0; | |
206 | class.hInstance = GetModuleHandle (0); | |
207 | class.hbrBackground = NULL; | |
208 | class.lpszMenuName = NULL; | |
209 | class.lpszClassName = "gdb_v850ice"; | |
210 | class.lpfnWndProc = v850ice_wndproc; | |
211 | class.hIcon = NULL; | |
212 | class.hCursor = NULL; | |
213 | ||
c5aa993b | 214 | if (!RegisterClass (&class)) |
6027a0b8 JM |
215 | return 0; |
216 | ||
217 | hidden_hwnd = CreateWindow ("gdb_v850ice", "gdb_v850ice", WS_TILED, | |
c5aa993b JM |
218 | 0, 0, 0, 0, NULL, NULL, class.hInstance, |
219 | NULL); | |
6027a0b8 JM |
220 | if (hidden_hwnd == NULL) |
221 | { | |
222 | char buf[200]; | |
223 | DWORD err; | |
224 | ||
225 | err = GetLastError (); | |
226 | FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM, NULL, err, | |
c5aa993b | 227 | 0, buf, 200, NULL); |
6027a0b8 JM |
228 | printf_unfiltered ("Could not create window: %s", buf); |
229 | return 0; | |
230 | } | |
231 | ||
232 | return 1; | |
233 | } | |
234 | ||
235 | /* | |
236 | This function is installed as the message handler for the hidden window | |
237 | which QBox will use to communicate with gdb. It recognize and acts | |
238 | on the following messages: | |
239 | ||
240 | WM_SYM_TO_ADDR \ | |
241 | WM_ADDR_TO_SYM | Not implemented at NEC's request | |
242 | WM_DISASSEMBLY / | |
243 | WM_STATE_CHANGE - tells us that a state change has occured in the ICE | |
c5aa993b | 244 | */ |
6027a0b8 | 245 | static LRESULT CALLBACK |
fba45db2 | 246 | v850ice_wndproc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) |
6027a0b8 JM |
247 | { |
248 | LRESULT result = FALSE; | |
249 | ||
250 | switch (message) | |
251 | { | |
252 | case WM_SYM_TO_ADDR: | |
253 | MessageBox (0, "Symbol resolution\nNot implemented", "GDB", MB_OK); | |
254 | break; | |
255 | case WM_ADDR_TO_SYM: | |
256 | MessageBox (0, "Address resolution\nNot implemented", "GDB", MB_OK); | |
257 | break; | |
258 | case WM_SOURCE: | |
3fc11d3e | 259 | view_source ((CORE_ADDR) lParam); |
6027a0b8 JM |
260 | break; |
261 | case WM_STATE_CHANGE: | |
262 | switch (wParam) | |
c5aa993b JM |
263 | { |
264 | case STATE_CHANGE_LOAD: | |
265 | { | |
266 | struct MessageIO iob; | |
267 | char buf[128]; | |
268 | ||
269 | iob.buf = buf; | |
270 | iob.size = 128; | |
271 | ||
272 | /* Load in a new file... Need filename */ | |
273 | ExeAppReq ("GDB", GLOADFILENAME, NULL, &iob); | |
274 | if (!catch_errors ((catch_errors_ftype *) ice_file, iob.buf, "", RETURN_MASK_ALL)) | |
275 | printf_unfiltered ("load errored\n"); | |
276 | } | |
277 | break; | |
278 | case STATE_CHANGE_RESET: | |
279 | registers_changed (); | |
280 | flush_cached_frames (); | |
281 | togdb_force_update (); | |
282 | result = TRUE; | |
283 | break; | |
284 | case STATE_CHANGE_REGS: | |
285 | registers_changed (); | |
286 | togdb_force_update (); | |
287 | result = TRUE; | |
288 | break; | |
289 | case STATE_CHANGE_CONT: | |
290 | if (!catch_errors ((catch_errors_ftype *) ice_cont, NULL, "", RETURN_MASK_ALL)) | |
291 | printf_unfiltered ("continue errored\n"); | |
292 | result = TRUE; | |
293 | break; | |
294 | case STATE_CHANGE_STEPI: | |
295 | if (!catch_errors ((catch_errors_ftype *) ice_stepi, (PTR) (int) lParam, "", | |
296 | RETURN_MASK_ALL)) | |
297 | printf_unfiltered ("stepi errored\n"); | |
298 | result = TRUE; | |
299 | break; | |
300 | case STATE_CHANGE_NEXTI: | |
301 | if (!catch_errors ((catch_errors_ftype *) ice_nexti, (PTR) (int) lParam, "", | |
302 | RETURN_MASK_ALL)) | |
303 | printf_unfiltered ("nexti errored\n"); | |
304 | result = TRUE; | |
305 | break; | |
306 | } | |
6027a0b8 JM |
307 | } |
308 | ||
309 | if (result == FALSE) | |
310 | return DefWindowProc (hwnd, message, wParam, lParam); | |
311 | ||
312 | return FALSE; | |
313 | } | |
314 | ||
315 | /* Code for opening a connection to the ICE. */ | |
316 | ||
317 | static void | |
fba45db2 | 318 | v850ice_open (char *name, int from_tty) |
6027a0b8 JM |
319 | { |
320 | HINSTANCE handle; | |
321 | ||
322 | if (name) | |
323 | error ("Too many arguments."); | |
324 | ||
325 | target_preopen (from_tty); | |
326 | ||
327 | unpush_target (&v850ice_ops); | |
328 | ||
329 | if (from_tty) | |
330 | puts_filtered ("V850ice debugging\n"); | |
331 | ||
332 | push_target (&v850ice_ops); /* Switch to using v850ice target now */ | |
333 | ||
334 | target_terminal_init (); | |
335 | ||
336 | /* Initialize everything necessary to facilitate communication | |
337 | between QBox, gdb, and the DLLs which control the ICE */ | |
338 | if (ExeAppReq == NULL) | |
339 | { | |
340 | handle = LoadLibrary ("necmsg.dll"); | |
341 | if (handle == NULL) | |
c5aa993b | 342 | error ("Cannot load necmsg.dll"); |
6027a0b8 | 343 | |
ac1d1083 | 344 | ExeAppReq = (long (*) (char *, long, char *, struct MessageIO *)) |
c5aa993b | 345 | GetProcAddress (handle, "ExeAppReq"); |
ac1d1083 | 346 | RegisterClient = (long (*) (HWND)) |
c5aa993b | 347 | GetProcAddress (handle, "RegisterClient"); |
ac1d1083 | 348 | UnregisterClient = (long (*) (void)) |
c5aa993b | 349 | GetProcAddress (handle, "UnregisterClient"); |
6027a0b8 JM |
350 | |
351 | if (ExeAppReq == NULL || RegisterClient == NULL || UnregisterClient == NULL) | |
c5aa993b | 352 | error ("Could not find requisite functions in necmsg.dll."); |
6027a0b8 JM |
353 | |
354 | if (!init_hidden_window ()) | |
c5aa993b | 355 | error ("could not initialize message handling"); |
6027a0b8 JM |
356 | } |
357 | ||
358 | /* Tell the DLL we are here */ | |
359 | RegisterClient (hidden_hwnd); | |
360 | ||
361 | ice_open = 1; | |
362 | ||
363 | /* Without this, some commands which require an active target (such as kill) | |
364 | won't work. This variable serves (at least) double duty as both the pid | |
365 | of the target process (if it has such), and as a flag indicating that a | |
366 | target is active. These functions should be split out into seperate | |
367 | variables, especially since GDB will someday have a notion of debugging | |
368 | several processes. */ | |
369 | inferior_pid = 42000; | |
370 | ||
371 | start_remote (); | |
372 | return; | |
373 | } | |
374 | ||
375 | /* Clean up connection to a remote debugger. */ | |
376 | ||
377 | /* ARGSUSED */ | |
378 | static void | |
fba45db2 | 379 | v850ice_close (int quitting) |
6027a0b8 JM |
380 | { |
381 | if (ice_open) | |
382 | { | |
383 | UnregisterClient (); | |
384 | ice_open = 0; | |
385 | inferior_pid = 0; | |
386 | } | |
387 | } | |
388 | ||
389 | /* Stop the process on the ice. */ | |
390 | static void | |
fba45db2 | 391 | v850ice_stop (void) |
6027a0b8 JM |
392 | { |
393 | /* This is silly, but it works... */ | |
394 | v850ice_command ("stop", 0); | |
395 | } | |
396 | ||
397 | static void | |
fba45db2 | 398 | v850ice_detach (char *args, int from_tty) |
6027a0b8 JM |
399 | { |
400 | if (args) | |
401 | error ("Argument given to \"detach\" when remotely debugging."); | |
402 | ||
403 | pop_target (); | |
404 | if (from_tty) | |
405 | puts_filtered ("Ending v850ice debugging.\n"); | |
406 | } | |
407 | ||
408 | /* Tell the remote machine to resume. */ | |
409 | ||
410 | static void | |
fba45db2 | 411 | v850ice_resume (int pid, int step, enum target_signal siggnal) |
6027a0b8 | 412 | { |
c5aa993b JM |
413 | long retval; |
414 | char buf[256]; | |
415 | struct MessageIO iob; | |
6027a0b8 JM |
416 | |
417 | iob.size = 0; | |
c5aa993b | 418 | iob.buf = buf; |
6027a0b8 JM |
419 | |
420 | if (step) | |
421 | retval = ExeAppReq ("GDB", GSINGLESTEP, "step", &iob); | |
422 | else | |
423 | retval = ExeAppReq ("GDB", GRESUME, "run", &iob); | |
424 | ||
425 | if (retval) | |
426 | error ("ExeAppReq (step = %d) returned %d", step, retval); | |
427 | } | |
428 | ||
429 | /* Wait until the remote machine stops, then return, | |
430 | storing status in STATUS just as `wait' would. | |
431 | Returns "pid" (though it's not clear what, if anything, that | |
432 | means in the case of this target). */ | |
433 | ||
434 | static int | |
fba45db2 | 435 | v850ice_wait (int pid, struct target_waitstatus *status) |
6027a0b8 JM |
436 | { |
437 | long v850_status; | |
438 | char buf[256]; | |
c5aa993b | 439 | struct MessageIO iob; |
6027a0b8 JM |
440 | int done = 0; |
441 | int count = 0; | |
442 | ||
443 | iob.size = 0; | |
c5aa993b JM |
444 | iob.buf = buf; |
445 | ||
6027a0b8 JM |
446 | do |
447 | { | |
448 | if (count++ % 100000) | |
c5aa993b JM |
449 | { |
450 | ui_loop_hook (0); | |
6027a0b8 | 451 | count = 0; |
c5aa993b | 452 | } |
6027a0b8 JM |
453 | |
454 | v850_status = ExeAppReq ("GDB", GCHECKSTATUS, NULL, &iob); | |
455 | ||
456 | switch (v850_status) | |
c5aa993b JM |
457 | { |
458 | case ICE_Idle: | |
459 | case ICE_Breakpoint: | |
460 | case ICE_Stepped: | |
461 | case ICE_Halted: | |
462 | status->kind = TARGET_WAITKIND_STOPPED; | |
463 | status->value.sig = TARGET_SIGNAL_TRAP; | |
464 | done = 1; | |
465 | break; | |
466 | case ICE_Exception: | |
467 | status->kind = TARGET_WAITKIND_SIGNALLED; | |
468 | status->value.sig = TARGET_SIGNAL_SEGV; | |
469 | done = 1; | |
470 | break; | |
471 | case ICE_Exited: | |
472 | status->kind = TARGET_WAITKIND_EXITED; | |
473 | status->value.integer = 0; | |
474 | done = 1; | |
475 | break; | |
476 | case ICE_Terminated: | |
477 | status->kind = TARGET_WAITKIND_SIGNALLED; | |
478 | status->value.sig = TARGET_SIGNAL_KILL; | |
479 | done = 1; | |
480 | break; | |
481 | default: | |
482 | break; | |
483 | } | |
6027a0b8 JM |
484 | } |
485 | while (!done); | |
c5aa993b | 486 | |
6027a0b8 JM |
487 | return inferior_pid; |
488 | } | |
489 | ||
490 | static int | |
fba45db2 | 491 | convert_register (int regno, char *buf) |
6027a0b8 JM |
492 | { |
493 | if (regno <= 31) | |
494 | sprintf (buf, "r%d", regno); | |
495 | else if (REGISTER_NAME (regno)[0] == 's' | |
496 | && REGISTER_NAME (regno)[1] == 'r') | |
497 | return 0; | |
498 | else | |
499 | sprintf (buf, "%s", REGISTER_NAME (regno)); | |
500 | ||
501 | return 1; | |
502 | } | |
503 | ||
504 | /* Read the remote registers into the block REGS. */ | |
505 | /* Note that the ICE returns register contents as ascii hex strings. We have | |
506 | to convert that to an unsigned long, and then call store_unsigned_integer to | |
507 | convert it to target byte-order if necessary. */ | |
508 | ||
509 | static void | |
fba45db2 | 510 | v850ice_fetch_registers (int regno) |
6027a0b8 JM |
511 | { |
512 | long retval; | |
513 | char cmd[100]; | |
514 | char val[100]; | |
515 | struct MessageIO iob; | |
516 | unsigned long regval; | |
517 | char *p; | |
518 | ||
519 | if (regno == -1) | |
520 | { | |
521 | for (regno = 0; regno < NUM_REGS; regno++) | |
c5aa993b | 522 | v850ice_fetch_registers (regno); |
6027a0b8 JM |
523 | return; |
524 | } | |
525 | ||
526 | strcpy (cmd, "reg "); | |
527 | if (!convert_register (regno, &cmd[4])) | |
528 | return; | |
529 | ||
530 | iob.size = sizeof val; | |
531 | iob.buf = val; | |
532 | retval = ExeAppReq ("GDB", GREADREG, cmd, &iob); | |
533 | if (retval) | |
534 | error ("1: ExeAppReq returned %d: cmd = %s", retval, cmd); | |
535 | ||
536 | regval = strtoul (val, NULL, 16); | |
537 | if (regval == 0 && p == val) | |
538 | error ("v850ice_fetch_registers (%d): bad value from ICE: %s.", | |
c5aa993b | 539 | regno, val); |
6027a0b8 JM |
540 | |
541 | store_unsigned_integer (val, REGISTER_RAW_SIZE (regno), regval); | |
542 | supply_register (regno, val); | |
543 | } | |
544 | ||
545 | /* Store register REGNO, or all registers if REGNO == -1, from the contents | |
546 | of REGISTERS. */ | |
547 | ||
548 | static void | |
fba45db2 | 549 | v850ice_store_registers (int regno) |
6027a0b8 JM |
550 | { |
551 | long retval; | |
552 | char cmd[100]; | |
553 | unsigned long regval; | |
554 | char buf[256]; | |
555 | struct MessageIO iob; | |
556 | iob.size = 0; | |
557 | iob.buf = buf; | |
558 | ||
559 | if (regno == -1) | |
560 | { | |
561 | for (regno = 0; regno < NUM_REGS; regno++) | |
562 | v850ice_store_registers (regno); | |
563 | return; | |
564 | } | |
565 | ||
566 | regval = extract_unsigned_integer (®isters[REGISTER_BYTE (regno)], | |
c5aa993b | 567 | REGISTER_RAW_SIZE (regno)); |
6027a0b8 JM |
568 | strcpy (cmd, "reg "); |
569 | if (!convert_register (regno, &cmd[4])) | |
570 | return; | |
571 | sprintf (cmd + strlen (cmd), "=0x%x", regval); | |
572 | ||
573 | retval = ExeAppReq ("GDB", GWRITEREG, cmd, &iob); | |
574 | if (retval) | |
575 | error ("2: ExeAppReq returned %d: cmd = %s", retval, cmd); | |
576 | } | |
577 | ||
578 | /* Prepare to store registers. Nothing to do here, since the ICE can write one | |
579 | register at a time. */ | |
580 | ||
c5aa993b | 581 | static void |
fba45db2 | 582 | v850ice_prepare_to_store (void) |
6027a0b8 JM |
583 | { |
584 | } | |
585 | ||
586 | /* Read or write LEN bytes from inferior memory at MEMADDR, transferring | |
587 | to or from debugger address MYADDR. Write to inferior if SHOULD_WRITE is | |
5af20574 KB |
588 | nonzero. TARGET is unused. Returns length of data written or read; |
589 | 0 for error. | |
6027a0b8 JM |
590 | |
591 | We can only read/write MAX_BLOCK_SIZE bytes at a time, though, or the DLL | |
5af20574 | 592 | dies. */ |
6027a0b8 JM |
593 | /* ARGSUSED */ |
594 | static int | |
5af20574 KB |
595 | v850ice_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, |
596 | int should_write, struct target_ops *target) | |
6027a0b8 JM |
597 | { |
598 | long retval; | |
599 | char cmd[100]; | |
600 | struct MessageIO iob; | |
601 | int sent; | |
602 | ||
603 | if (should_write) | |
604 | { | |
605 | if (len == 4 || len == 2 || len == 1) | |
c5aa993b JM |
606 | { |
607 | long value = 0; | |
608 | char buf[256]; | |
609 | char c; | |
610 | ||
611 | iob.size = 0; | |
612 | iob.buf = buf; | |
613 | ||
614 | sent = 0; | |
615 | switch (len) | |
616 | { | |
617 | case 4: | |
618 | c = 'w'; | |
619 | value |= (long) ((myaddr[3] << 24) & 0xff000000); | |
620 | value |= (long) ((myaddr[2] << 16) & 0x00ff0000); | |
621 | value |= (long) ((myaddr[1] << 8) & 0x0000ff00); | |
622 | value |= (long) (myaddr[0] & 0x000000ff); | |
623 | break; | |
624 | case 2: | |
625 | c = 'h'; | |
626 | value |= (long) ((myaddr[1] << 8) & 0xff00); | |
627 | value |= (long) (myaddr[0] & 0x00ff); | |
6027a0b8 | 628 | break; |
c5aa993b JM |
629 | case 1: |
630 | c = 'b'; | |
631 | value |= (long) (myaddr[0] & 0xff); | |
632 | break; | |
633 | } | |
634 | ||
635 | sprintf (cmd, "memory %c c 0x%x=0x%x", c, (int) memaddr, value); | |
636 | retval = ExeAppReq ("GDB", GWRITEMEM, cmd, &iob); | |
637 | if (retval == 0) | |
638 | sent = len; | |
639 | } | |
640 | else | |
641 | { | |
642 | sent = 0; | |
643 | do | |
644 | { | |
645 | iob.size = len > MAX_BLOCK_SIZE ? MAX_BLOCK_SIZE : len; | |
646 | iob.buf = myaddr; | |
647 | sprintf (cmd, "memory b c 0x%x=0x00 l=%d", (int) memaddr, iob.size); | |
648 | retval = ExeAppReq ("GDB", GWRITEBLOCK, cmd, &iob); | |
649 | if (retval != 0) | |
650 | break; | |
651 | len -= iob.size; | |
652 | memaddr += iob.size; | |
653 | myaddr += iob.size; | |
654 | sent += iob.size; | |
655 | } | |
656 | while (len > 0); | |
657 | } | |
6027a0b8 JM |
658 | } |
659 | else | |
660 | { | |
661 | unsigned char *tmp; | |
662 | unsigned char *t; | |
663 | int i; | |
c5aa993b | 664 | |
6027a0b8 JM |
665 | tmp = alloca (len + 100); |
666 | t = tmp; | |
667 | memset (tmp + len, 0xff, 100); | |
668 | ||
669 | sent = 0; | |
670 | do | |
c5aa993b JM |
671 | { |
672 | iob.size = len > MAX_BLOCK_SIZE ? MAX_BLOCK_SIZE : len; | |
673 | iob.buf = tmp; | |
674 | sprintf (cmd, "memory b 0x%x l=%d", (int) memaddr, iob.size); | |
675 | retval = ExeAppReq ("GDB", GREADBLOCK, cmd, &iob); | |
676 | if (retval != 0) | |
677 | break; | |
678 | len -= iob.size; | |
679 | memaddr += iob.size; | |
680 | sent += iob.size; | |
681 | tmp += iob.size; | |
682 | } | |
6027a0b8 JM |
683 | while (len > 0); |
684 | ||
685 | if (retval == 0) | |
c5aa993b JM |
686 | { |
687 | for (i = 0; i < 100; i++) | |
688 | { | |
689 | if (t[sent + i] != 0xff) | |
690 | { | |
691 | warning ("GREADBLOCK trashed bytes after transfer area."); | |
692 | break; | |
693 | } | |
694 | } | |
695 | memcpy (myaddr, t, sent); | |
696 | } | |
6027a0b8 | 697 | } |
c5aa993b | 698 | |
6027a0b8 JM |
699 | if (retval != 0) |
700 | error ("3: ExeAppReq returned %d: cmd = %s", retval, cmd); | |
c5aa993b | 701 | |
6027a0b8 JM |
702 | return sent; |
703 | } | |
704 | ||
705 | static void | |
fba45db2 | 706 | v850ice_files_info (struct target_ops *ignore) |
6027a0b8 JM |
707 | { |
708 | puts_filtered ("Debugging a target via the NEC V850 ICE.\n"); | |
709 | } | |
710 | ||
711 | static int | |
fba45db2 | 712 | v850ice_insert_breakpoint (CORE_ADDR addr, char *contents_cache) |
6027a0b8 JM |
713 | { |
714 | long retval; | |
715 | char cmd[100]; | |
716 | char buf[256]; | |
717 | struct MessageIO iob; | |
718 | ||
719 | iob.size = 0; | |
c5aa993b | 720 | iob.buf = buf; |
6027a0b8 JM |
721 | sprintf (cmd, "%d, ", addr); |
722 | ||
723 | retval = ExeAppReq ("GDB", GSETBREAK, cmd, &iob); | |
724 | if (retval) | |
725 | error ("ExeAppReq (GSETBREAK) returned %d: cmd = %s", retval, cmd); | |
726 | ||
727 | return 0; | |
728 | } | |
729 | ||
730 | static int | |
fba45db2 | 731 | v850ice_remove_breakpoint (CORE_ADDR addr, char *contents_cache) |
6027a0b8 JM |
732 | { |
733 | long retval; | |
734 | char cmd[100]; | |
735 | char buf[256]; | |
736 | struct MessageIO iob; | |
737 | ||
738 | iob.size = 0; | |
c5aa993b | 739 | iob.buf = buf; |
6027a0b8 JM |
740 | |
741 | sprintf (cmd, "%d, ", addr); | |
742 | ||
743 | retval = ExeAppReq ("GDB", GREMOVEBREAK, cmd, &iob); | |
744 | if (retval) | |
745 | error ("ExeAppReq (GREMOVEBREAK) returned %d: cmd = %s", retval, cmd); | |
746 | ||
747 | return 0; | |
748 | } | |
749 | ||
750 | static void | |
fba45db2 | 751 | v850ice_kill (void) |
6027a0b8 JM |
752 | { |
753 | target_mourn_inferior (); | |
754 | inferior_pid = 0; | |
755 | } | |
756 | ||
757 | static void | |
fba45db2 | 758 | v850ice_mourn (void) |
6027a0b8 JM |
759 | { |
760 | } | |
761 | ||
762 | static void | |
fba45db2 | 763 | v850ice_load (char *filename, int from_tty) |
6027a0b8 JM |
764 | { |
765 | struct MessageIO iob; | |
766 | char buf[256]; | |
767 | ||
768 | iob.size = 0; | |
c5aa993b JM |
769 | iob.buf = buf; |
770 | generic_load (filename, from_tty); | |
6027a0b8 JM |
771 | ExeAppReq ("GDB", GDOWNLOAD, filename, &iob); |
772 | } | |
773 | ||
774 | static int | |
fba45db2 | 775 | ice_file (char *arg) |
6027a0b8 JM |
776 | { |
777 | char *s; | |
c5aa993b | 778 | |
6027a0b8 JM |
779 | target_detach (NULL, 0); |
780 | pop_target (); | |
781 | ||
782 | printf_unfiltered ("\n"); | |
783 | ||
784 | s = arg; | |
785 | while (*s != '\0') | |
786 | { | |
787 | if (*s == '\\') | |
c5aa993b | 788 | *s = '/'; |
6027a0b8 JM |
789 | s++; |
790 | } | |
791 | ||
792 | /* Safegaurd against confusing the breakpoint routines... */ | |
c5aa993b | 793 | delete_command (NULL, 0); |
6027a0b8 JM |
794 | |
795 | /* Must supress from_tty, otherwise we could start asking if the | |
796 | user really wants to load a new symbol table, etc... */ | |
797 | printf_unfiltered ("Reading symbols from %s...", arg); | |
1adeb98a FN |
798 | exec_open (arg, 0); |
799 | symbol_file_add_main (arg, 0); | |
6027a0b8 JM |
800 | printf_unfiltered ("done\n"); |
801 | ||
1adeb98a | 802 | /* exec_open will kill our target, so reinstall the ICE as |
6027a0b8 JM |
803 | the target. */ |
804 | v850ice_open (NULL, 0); | |
805 | ||
806 | togdb_force_update (); | |
807 | return 1; | |
808 | } | |
809 | ||
810 | static int | |
fba45db2 | 811 | ice_cont (char *c) |
6027a0b8 JM |
812 | { |
813 | printf_filtered ("continue (ice)\n"); | |
814 | ReplyMessage ((LRESULT) 1); | |
815 | ||
3fc11d3e JM |
816 | if (gdbtk_interp == NULL) |
817 | { | |
6027a0b8 | 818 | continue_command (NULL, 1); |
3fc11d3e JM |
819 | } |
820 | else | |
821 | Tcl_Eval (gdbtk_interp, "gdb_immediate continue"); | |
6027a0b8 JM |
822 | |
823 | return 1; | |
824 | } | |
825 | ||
826 | static void | |
5af20574 | 827 | do_gdb (char *cmd, char *str, void (*func) (char *, int), int count) |
6027a0b8 JM |
828 | { |
829 | ReplyMessage ((LRESULT) 1); | |
830 | ||
831 | while (count--) | |
832 | { | |
833 | printf_unfiltered (str); | |
834 | ||
3fc11d3e JM |
835 | if (gdbtk_interp == NULL) |
836 | { | |
6027a0b8 | 837 | func (NULL, 0); |
3fc11d3e JM |
838 | } |
839 | else | |
840 | Tcl_Eval (gdbtk_interp, cmd); | |
6027a0b8 JM |
841 | } |
842 | } | |
843 | ||
844 | ||
845 | static int | |
fba45db2 | 846 | ice_stepi (char *c) |
6027a0b8 JM |
847 | { |
848 | int count = (int) c; | |
849 | ||
850 | do_gdb ("gdb_immediate stepi", "stepi (ice)\n", stepi_command, count); | |
851 | return 1; | |
852 | } | |
853 | ||
854 | static int | |
fba45db2 | 855 | ice_nexti (char *c) |
6027a0b8 JM |
856 | { |
857 | int count = (int) c; | |
858 | ||
859 | do_gdb ("gdb_immediate nexti", "nexti (ice)\n", nexti_command, count); | |
860 | return 1; | |
861 | } | |
862 | ||
863 | static void | |
fba45db2 | 864 | v850ice_command (char *arg, int from_tty) |
6027a0b8 JM |
865 | { |
866 | struct MessageIO iob; | |
867 | char buf[256]; | |
868 | ||
869 | iob.buf = buf; | |
870 | iob.size = 0; | |
871 | ExeAppReq ("GDB", GCOMMAND, arg, &iob); | |
872 | } | |
873 | ||
874 | static void | |
875 | togdb_force_update (void) | |
876 | { | |
3fc11d3e JM |
877 | if (gdbtk_interp != NULL) |
878 | Tcl_Eval (gdbtk_interp, "gdbtk_update"); | |
6027a0b8 JM |
879 | } |
880 | ||
3fc11d3e | 881 | static void |
fba45db2 | 882 | view_source (CORE_ADDR addr) |
3fc11d3e JM |
883 | { |
884 | char c[256]; | |
885 | ||
886 | if (gdbtk_interp != NULL) | |
887 | { | |
888 | sprintf (c, "catch {set src [lindex [ManagedWin::find SrcWin] 0]\n$src location BROWSE [gdb_loc *0x%x]}", addr); | |
889 | Tcl_Eval (gdbtk_interp, c); | |
890 | } | |
891 | } | |
6027a0b8 JM |
892 | |
893 | /* Define the target subroutine names */ | |
894 | ||
c5aa993b JM |
895 | static void |
896 | init_850ice_ops (void) | |
6027a0b8 | 897 | { |
c5aa993b JM |
898 | v850ice_ops.to_shortname = "ice"; |
899 | v850ice_ops.to_longname = "NEC V850 ICE interface"; | |
900 | v850ice_ops.to_doc = "Debug a system controlled by a NEC 850 ICE."; | |
901 | v850ice_ops.to_open = v850ice_open; | |
902 | v850ice_ops.to_close = v850ice_close; | |
903 | v850ice_ops.to_attach = NULL; | |
904 | v850ice_ops.to_post_attach = NULL; | |
905 | v850ice_ops.to_require_attach = NULL; | |
906 | v850ice_ops.to_detach = v850ice_detach; | |
907 | v850ice_ops.to_require_detach = NULL; | |
908 | v850ice_ops.to_resume = v850ice_resume; | |
909 | v850ice_ops.to_wait = v850ice_wait; | |
910 | v850ice_ops.to_post_wait = NULL; | |
911 | v850ice_ops.to_fetch_registers = v850ice_fetch_registers; | |
912 | v850ice_ops.to_store_registers = v850ice_store_registers; | |
913 | v850ice_ops.to_prepare_to_store = v850ice_prepare_to_store; | |
914 | v850ice_ops.to_xfer_memory = v850ice_xfer_memory; | |
915 | v850ice_ops.to_files_info = v850ice_files_info; | |
916 | v850ice_ops.to_insert_breakpoint = v850ice_insert_breakpoint; | |
917 | v850ice_ops.to_remove_breakpoint = v850ice_remove_breakpoint; | |
918 | v850ice_ops.to_terminal_init = NULL; | |
919 | v850ice_ops.to_terminal_inferior = NULL; | |
920 | v850ice_ops.to_terminal_ours_for_output = NULL; | |
921 | v850ice_ops.to_terminal_ours = NULL; | |
922 | v850ice_ops.to_terminal_info = NULL; | |
923 | v850ice_ops.to_kill = v850ice_kill; | |
924 | v850ice_ops.to_load = v850ice_load; | |
925 | v850ice_ops.to_lookup_symbol = NULL; | |
926 | v850ice_ops.to_create_inferior = NULL; | |
927 | v850ice_ops.to_mourn_inferior = v850ice_mourn; | |
928 | v850ice_ops.to_can_run = 0; | |
929 | v850ice_ops.to_notice_signals = 0; | |
930 | v850ice_ops.to_thread_alive = NULL; | |
931 | v850ice_ops.to_stop = v850ice_stop; | |
6027a0b8 | 932 | v850ice_ops.to_pid_to_exec_file = NULL; |
c5aa993b JM |
933 | v850ice_ops.to_core_file_to_sym_file = NULL; |
934 | v850ice_ops.to_stratum = process_stratum; | |
935 | v850ice_ops.DONT_USE = NULL; | |
936 | v850ice_ops.to_has_all_memory = 1; | |
937 | v850ice_ops.to_has_memory = 1; | |
938 | v850ice_ops.to_has_stack = 1; | |
939 | v850ice_ops.to_has_registers = 1; | |
940 | v850ice_ops.to_has_execution = 1; | |
941 | v850ice_ops.to_sections = NULL; | |
942 | v850ice_ops.to_sections_end = NULL; | |
943 | v850ice_ops.to_magic = OPS_MAGIC; | |
6027a0b8 JM |
944 | } |
945 | ||
946 | void | |
fba45db2 | 947 | _initialize_v850ice (void) |
6027a0b8 JM |
948 | { |
949 | init_850ice_ops (); | |
950 | add_target (&v850ice_ops); | |
951 | ||
952 | add_com ("ice", class_obscure, v850ice_command, | |
c5aa993b | 953 | "Send command to ICE"); |
6027a0b8 | 954 | } |