Commit | Line | Data |
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6027a0b8 | 1 | /* ICE interface for the NEC V850 for GDB, the GNU debugger. |
b6ba6518 KB |
2 | Copyright 1996, 1997, 1998, 1999, 2000, 2001 |
3 | Free Software Foundation, Inc. | |
6027a0b8 | 4 | |
c5aa993b | 5 | This file is part of GDB. |
6027a0b8 | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
6027a0b8 | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
6027a0b8 | 16 | |
c5aa993b JM |
17 | You should have received a copy of the GNU General Public License |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, | |
20 | Boston, MA 02111-1307, USA. */ | |
6027a0b8 JM |
21 | |
22 | #include "defs.h" | |
23 | #include "gdb_string.h" | |
24 | #include "frame.h" | |
25 | #include "symtab.h" | |
26 | #include "inferior.h" | |
27 | #include "breakpoint.h" | |
28 | #include "symfile.h" | |
29 | #include "target.h" | |
30 | #include "objfiles.h" | |
31 | #include "gdbcore.h" | |
32 | #include "value.h" | |
33 | #include "command.h" | |
4e052eda | 34 | #include "regcache.h" |
6027a0b8 | 35 | |
3fc11d3e | 36 | #include <tcl.h> |
6027a0b8 | 37 | #include <windows.h> |
c5aa993b JM |
38 | #include <winuser.h> /* for WM_USER */ |
39 | ||
40 | extern unsigned long int strtoul (const char *nptr, char **endptr, | |
41 | int base); | |
6027a0b8 | 42 | |
6027a0b8 JM |
43 | /* Local data definitions */ |
44 | struct MessageIO | |
c5aa993b JM |
45 | { |
46 | int size; /* length of input or output in bytes */ | |
47 | char *buf; /* buffer having the input/output information */ | |
48 | }; | |
6027a0b8 JM |
49 | |
50 | /* Prototypes for functions located in other files */ | |
a14ed312 | 51 | extern void break_command (char *, int); |
6027a0b8 | 52 | |
a14ed312 | 53 | extern void stepi_command (char *, int); |
6027a0b8 | 54 | |
a14ed312 | 55 | extern void nexti_command (char *, int); |
6027a0b8 | 56 | |
a14ed312 | 57 | extern void continue_command (char *, int); |
6027a0b8 | 58 | |
507f3c78 | 59 | extern int (*ui_loop_hook) (int); |
6027a0b8 JM |
60 | |
61 | /* Prototypes for local functions */ | |
a14ed312 | 62 | static int init_hidden_window (void); |
6027a0b8 | 63 | |
a14ed312 | 64 | static LRESULT CALLBACK v850ice_wndproc (HWND, UINT, WPARAM, LPARAM); |
6027a0b8 | 65 | |
a14ed312 | 66 | static void v850ice_files_info (struct target_ops *ignore); |
6027a0b8 | 67 | |
a14ed312 KB |
68 | static int v850ice_xfer_memory (CORE_ADDR memaddr, char *myaddr, |
69 | int len, int should_write, | |
70 | struct target_ops *target); | |
6027a0b8 | 71 | |
a14ed312 | 72 | static void v850ice_prepare_to_store (void); |
6027a0b8 | 73 | |
a14ed312 | 74 | static void v850ice_fetch_registers (int regno); |
6027a0b8 | 75 | |
a14ed312 | 76 | static void v850ice_resume (int pid, int step, enum target_signal siggnal); |
6027a0b8 | 77 | |
a14ed312 | 78 | static void v850ice_open (char *name, int from_tty); |
6027a0b8 | 79 | |
a14ed312 | 80 | static void v850ice_close (int quitting); |
6027a0b8 | 81 | |
a14ed312 | 82 | static void v850ice_stop (void); |
6027a0b8 | 83 | |
a14ed312 | 84 | static void v850ice_store_registers (int regno); |
6027a0b8 | 85 | |
a14ed312 | 86 | static void v850ice_mourn (void); |
6027a0b8 | 87 | |
a14ed312 | 88 | static int v850ice_wait (int pid, struct target_waitstatus *status); |
6027a0b8 | 89 | |
a14ed312 | 90 | static void v850ice_kill (void); |
6027a0b8 | 91 | |
a14ed312 | 92 | static void v850ice_detach (char *args, int from_tty); |
6027a0b8 | 93 | |
a14ed312 | 94 | static int v850ice_insert_breakpoint (CORE_ADDR, char *); |
6027a0b8 | 95 | |
a14ed312 | 96 | static int v850ice_remove_breakpoint (CORE_ADDR, char *); |
6027a0b8 | 97 | |
a14ed312 | 98 | static void v850ice_command (char *, int); |
6027a0b8 | 99 | |
a14ed312 | 100 | static int ice_disassemble (unsigned long, int, char *); |
6027a0b8 | 101 | |
a14ed312 | 102 | static int ice_lookup_addr (unsigned long *, char *, char *); |
6027a0b8 | 103 | |
a14ed312 | 104 | static int ice_lookup_symbol (unsigned long, char *); |
6027a0b8 | 105 | |
a14ed312 | 106 | static void ice_SimulateDisassemble (char *, int); |
6027a0b8 | 107 | |
a14ed312 | 108 | static void ice_SimulateAddrLookup (char *, int); |
6027a0b8 | 109 | |
a14ed312 | 110 | static void ice_Simulate_SymLookup (char *, int); |
6027a0b8 | 111 | |
d9fcf2fb | 112 | static void ice_fputs (const char *, struct ui_file *); |
6027a0b8 | 113 | |
a14ed312 | 114 | static int ice_file (char *); |
6027a0b8 | 115 | |
a14ed312 | 116 | static int ice_cont (char *); |
6027a0b8 | 117 | |
a14ed312 | 118 | static int ice_stepi (char *); |
6027a0b8 | 119 | |
a14ed312 | 120 | static int ice_nexti (char *); |
6027a0b8 | 121 | |
a14ed312 | 122 | static void togdb_force_update (void); |
6027a0b8 | 123 | |
a14ed312 | 124 | static void view_source (CORE_ADDR); |
3fc11d3e | 125 | |
ac1d1083 | 126 | static void do_gdb (char *, char *, void (*func) (char *, int), int); |
6027a0b8 JM |
127 | |
128 | ||
129 | /* Globals */ | |
c5aa993b | 130 | static HWND hidden_hwnd; /* HWND for messages */ |
6027a0b8 | 131 | |
ac1d1083 | 132 | long (__stdcall * ExeAppReq) (char *, long, char *, struct MessageIO *); |
6027a0b8 | 133 | |
ac1d1083 | 134 | long (__stdcall * RegisterClient) (HWND); |
6027a0b8 | 135 | |
ac1d1083 | 136 | long (__stdcall * UnregisterClient) (void); |
6027a0b8 | 137 | |
3fc11d3e | 138 | extern Tcl_Interp *gdbtk_interp; |
6027a0b8 JM |
139 | |
140 | /* Globals local to this file only */ | |
c5aa993b | 141 | static int ice_open = 0; /* Is ICE open? */ |
6027a0b8 | 142 | |
c5aa993b | 143 | static char *v850_CB_Result; /* special char array for saving 'callback' results */ |
6027a0b8 | 144 | |
c5aa993b | 145 | static int SimulateCallback; /* simulate a callback event */ |
6027a0b8 | 146 | |
c5aa993b JM |
147 | #define MAX_BLOCK_SIZE 64*1024 /* Cannot transfer memory in blocks bigger |
148 | than this */ | |
6027a0b8 | 149 | /* MDI/ICE Message IDs */ |
c5aa993b JM |
150 | #define GSINGLESTEP 0x200 /* single-step target */ |
151 | #define GRESUME 0x201 /* resume target */ | |
152 | #define GREADREG 0x202 /* read a register */ | |
153 | #define GWRITEREG 0x203 /* write a register */ | |
154 | #define GWRITEBLOCK 0x204 /* write a block of memory */ | |
155 | #define GREADBLOCK 0x205 /* read a block of memory */ | |
156 | #define GSETBREAK 0x206 /* set a breakpoint */ | |
157 | #define GREMOVEBREAK 0x207 /* remove a breakpoint */ | |
158 | #define GHALT 0x208 /* ??? */ | |
159 | #define GCHECKSTATUS 0x209 /* check status of ICE */ | |
160 | #define GMDIREPLY 0x210 /* Reply for previous query - NOT USED */ | |
161 | #define GDOWNLOAD 0x211 /* something for MDI */ | |
162 | #define GCOMMAND 0x212 /* execute command in ice */ | |
163 | #define GLOADFILENAME 0x213 /* retrieve load filename */ | |
164 | #define GWRITEMEM 0x214 /* write word, half-word, or byte */ | |
6027a0b8 JM |
165 | |
166 | /* GCHECKSTATUS return codes: */ | |
167 | #define ICE_Idle 0x00 | |
c5aa993b JM |
168 | #define ICE_Breakpoint 0x01 /* hit a breakpoint */ |
169 | #define ICE_Stepped 0x02 /* have stepped */ | |
170 | #define ICE_Exception 0x03 /* have exception */ | |
171 | #define ICE_Halted 0x04 /* hit a user halt */ | |
172 | #define ICE_Exited 0x05 /* called exit */ | |
173 | #define ICE_Terminated 0x06 /* user terminated */ | |
6027a0b8 JM |
174 | #define ICE_Running 0x07 |
175 | #define ICE_Unknown 0x99 | |
176 | ||
177 | /* Windows messages */ | |
178 | #define WM_STATE_CHANGE WM_USER+101 | |
179 | #define WM_SYM_TO_ADDR WM_USER+102 | |
180 | #define WM_ADDR_TO_SYM WM_USER+103 | |
181 | #define WM_DISASSEMBLY WM_USER+104 | |
182 | #define WM_SOURCE WM_USER+105 | |
183 | ||
184 | /* STATE_CHANGE codes */ | |
c5aa993b JM |
185 | #define STATE_CHANGE_REGS 1 /* Register(s) changed */ |
186 | #define STATE_CHANGE_LOAD 2 /* HW reset */ | |
187 | #define STATE_CHANGE_RESET 3 /* Load new file */ | |
188 | #define STATE_CHANGE_CONT 4 /* Run target */ | |
189 | #define STATE_CHANGE_STOP 5 /* Stop target */ | |
190 | #define STATE_CHANGE_STEPI 6 /* Stepi target */ | |
191 | #define STATE_CHANGE_NEXTI 7 /* Nexti target */ | |
6027a0b8 JM |
192 | |
193 | static struct target_ops v850ice_ops; /* Forward decl */ | |
194 | ||
195 | /* This function creates a hidden window */ | |
196 | static int | |
fba45db2 | 197 | init_hidden_window (void) |
6027a0b8 JM |
198 | { |
199 | WNDCLASS class; | |
200 | ||
201 | if (hidden_hwnd != NULL) | |
202 | return 1; | |
203 | ||
204 | class.style = 0; | |
205 | class.cbClsExtra = 0; | |
206 | class.cbWndExtra = 0; | |
207 | class.hInstance = GetModuleHandle (0); | |
208 | class.hbrBackground = NULL; | |
209 | class.lpszMenuName = NULL; | |
210 | class.lpszClassName = "gdb_v850ice"; | |
211 | class.lpfnWndProc = v850ice_wndproc; | |
212 | class.hIcon = NULL; | |
213 | class.hCursor = NULL; | |
214 | ||
c5aa993b | 215 | if (!RegisterClass (&class)) |
6027a0b8 JM |
216 | return 0; |
217 | ||
218 | hidden_hwnd = CreateWindow ("gdb_v850ice", "gdb_v850ice", WS_TILED, | |
c5aa993b JM |
219 | 0, 0, 0, 0, NULL, NULL, class.hInstance, |
220 | NULL); | |
6027a0b8 JM |
221 | if (hidden_hwnd == NULL) |
222 | { | |
223 | char buf[200]; | |
224 | DWORD err; | |
225 | ||
226 | err = GetLastError (); | |
227 | FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM, NULL, err, | |
c5aa993b | 228 | 0, buf, 200, NULL); |
6027a0b8 JM |
229 | printf_unfiltered ("Could not create window: %s", buf); |
230 | return 0; | |
231 | } | |
232 | ||
233 | return 1; | |
234 | } | |
235 | ||
236 | /* | |
237 | This function is installed as the message handler for the hidden window | |
238 | which QBox will use to communicate with gdb. It recognize and acts | |
239 | on the following messages: | |
240 | ||
241 | WM_SYM_TO_ADDR \ | |
242 | WM_ADDR_TO_SYM | Not implemented at NEC's request | |
243 | WM_DISASSEMBLY / | |
244 | WM_STATE_CHANGE - tells us that a state change has occured in the ICE | |
c5aa993b | 245 | */ |
6027a0b8 | 246 | static LRESULT CALLBACK |
fba45db2 | 247 | v850ice_wndproc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) |
6027a0b8 JM |
248 | { |
249 | LRESULT result = FALSE; | |
250 | ||
251 | switch (message) | |
252 | { | |
253 | case WM_SYM_TO_ADDR: | |
254 | MessageBox (0, "Symbol resolution\nNot implemented", "GDB", MB_OK); | |
255 | break; | |
256 | case WM_ADDR_TO_SYM: | |
257 | MessageBox (0, "Address resolution\nNot implemented", "GDB", MB_OK); | |
258 | break; | |
259 | case WM_SOURCE: | |
3fc11d3e | 260 | view_source ((CORE_ADDR) lParam); |
6027a0b8 JM |
261 | break; |
262 | case WM_STATE_CHANGE: | |
263 | switch (wParam) | |
c5aa993b JM |
264 | { |
265 | case STATE_CHANGE_LOAD: | |
266 | { | |
267 | struct MessageIO iob; | |
268 | char buf[128]; | |
269 | ||
270 | iob.buf = buf; | |
271 | iob.size = 128; | |
272 | ||
273 | /* Load in a new file... Need filename */ | |
274 | ExeAppReq ("GDB", GLOADFILENAME, NULL, &iob); | |
275 | if (!catch_errors ((catch_errors_ftype *) ice_file, iob.buf, "", RETURN_MASK_ALL)) | |
276 | printf_unfiltered ("load errored\n"); | |
277 | } | |
278 | break; | |
279 | case STATE_CHANGE_RESET: | |
280 | registers_changed (); | |
281 | flush_cached_frames (); | |
282 | togdb_force_update (); | |
283 | result = TRUE; | |
284 | break; | |
285 | case STATE_CHANGE_REGS: | |
286 | registers_changed (); | |
287 | togdb_force_update (); | |
288 | result = TRUE; | |
289 | break; | |
290 | case STATE_CHANGE_CONT: | |
291 | if (!catch_errors ((catch_errors_ftype *) ice_cont, NULL, "", RETURN_MASK_ALL)) | |
292 | printf_unfiltered ("continue errored\n"); | |
293 | result = TRUE; | |
294 | break; | |
295 | case STATE_CHANGE_STEPI: | |
296 | if (!catch_errors ((catch_errors_ftype *) ice_stepi, (PTR) (int) lParam, "", | |
297 | RETURN_MASK_ALL)) | |
298 | printf_unfiltered ("stepi errored\n"); | |
299 | result = TRUE; | |
300 | break; | |
301 | case STATE_CHANGE_NEXTI: | |
302 | if (!catch_errors ((catch_errors_ftype *) ice_nexti, (PTR) (int) lParam, "", | |
303 | RETURN_MASK_ALL)) | |
304 | printf_unfiltered ("nexti errored\n"); | |
305 | result = TRUE; | |
306 | break; | |
307 | } | |
6027a0b8 JM |
308 | } |
309 | ||
310 | if (result == FALSE) | |
311 | return DefWindowProc (hwnd, message, wParam, lParam); | |
312 | ||
313 | return FALSE; | |
314 | } | |
315 | ||
316 | /* Code for opening a connection to the ICE. */ | |
317 | ||
318 | static void | |
fba45db2 | 319 | v850ice_open (char *name, int from_tty) |
6027a0b8 JM |
320 | { |
321 | HINSTANCE handle; | |
322 | ||
323 | if (name) | |
324 | error ("Too many arguments."); | |
325 | ||
326 | target_preopen (from_tty); | |
327 | ||
328 | unpush_target (&v850ice_ops); | |
329 | ||
330 | if (from_tty) | |
331 | puts_filtered ("V850ice debugging\n"); | |
332 | ||
333 | push_target (&v850ice_ops); /* Switch to using v850ice target now */ | |
334 | ||
335 | target_terminal_init (); | |
336 | ||
337 | /* Initialize everything necessary to facilitate communication | |
338 | between QBox, gdb, and the DLLs which control the ICE */ | |
339 | if (ExeAppReq == NULL) | |
340 | { | |
341 | handle = LoadLibrary ("necmsg.dll"); | |
342 | if (handle == NULL) | |
c5aa993b | 343 | error ("Cannot load necmsg.dll"); |
6027a0b8 | 344 | |
ac1d1083 | 345 | ExeAppReq = (long (*) (char *, long, char *, struct MessageIO *)) |
c5aa993b | 346 | GetProcAddress (handle, "ExeAppReq"); |
ac1d1083 | 347 | RegisterClient = (long (*) (HWND)) |
c5aa993b | 348 | GetProcAddress (handle, "RegisterClient"); |
ac1d1083 | 349 | UnregisterClient = (long (*) (void)) |
c5aa993b | 350 | GetProcAddress (handle, "UnregisterClient"); |
6027a0b8 JM |
351 | |
352 | if (ExeAppReq == NULL || RegisterClient == NULL || UnregisterClient == NULL) | |
c5aa993b | 353 | error ("Could not find requisite functions in necmsg.dll."); |
6027a0b8 JM |
354 | |
355 | if (!init_hidden_window ()) | |
c5aa993b | 356 | error ("could not initialize message handling"); |
6027a0b8 JM |
357 | } |
358 | ||
359 | /* Tell the DLL we are here */ | |
360 | RegisterClient (hidden_hwnd); | |
361 | ||
362 | ice_open = 1; | |
363 | ||
364 | /* Without this, some commands which require an active target (such as kill) | |
365 | won't work. This variable serves (at least) double duty as both the pid | |
366 | of the target process (if it has such), and as a flag indicating that a | |
367 | target is active. These functions should be split out into seperate | |
368 | variables, especially since GDB will someday have a notion of debugging | |
369 | several processes. */ | |
370 | inferior_pid = 42000; | |
371 | ||
372 | start_remote (); | |
373 | return; | |
374 | } | |
375 | ||
376 | /* Clean up connection to a remote debugger. */ | |
377 | ||
378 | /* ARGSUSED */ | |
379 | static void | |
fba45db2 | 380 | v850ice_close (int quitting) |
6027a0b8 JM |
381 | { |
382 | if (ice_open) | |
383 | { | |
384 | UnregisterClient (); | |
385 | ice_open = 0; | |
386 | inferior_pid = 0; | |
387 | } | |
388 | } | |
389 | ||
390 | /* Stop the process on the ice. */ | |
391 | static void | |
fba45db2 | 392 | v850ice_stop (void) |
6027a0b8 JM |
393 | { |
394 | /* This is silly, but it works... */ | |
395 | v850ice_command ("stop", 0); | |
396 | } | |
397 | ||
398 | static void | |
fba45db2 | 399 | v850ice_detach (char *args, int from_tty) |
6027a0b8 JM |
400 | { |
401 | if (args) | |
402 | error ("Argument given to \"detach\" when remotely debugging."); | |
403 | ||
404 | pop_target (); | |
405 | if (from_tty) | |
406 | puts_filtered ("Ending v850ice debugging.\n"); | |
407 | } | |
408 | ||
409 | /* Tell the remote machine to resume. */ | |
410 | ||
411 | static void | |
fba45db2 | 412 | v850ice_resume (int pid, int step, enum target_signal siggnal) |
6027a0b8 | 413 | { |
c5aa993b JM |
414 | long retval; |
415 | char buf[256]; | |
416 | struct MessageIO iob; | |
6027a0b8 JM |
417 | |
418 | iob.size = 0; | |
c5aa993b | 419 | iob.buf = buf; |
6027a0b8 JM |
420 | |
421 | if (step) | |
422 | retval = ExeAppReq ("GDB", GSINGLESTEP, "step", &iob); | |
423 | else | |
424 | retval = ExeAppReq ("GDB", GRESUME, "run", &iob); | |
425 | ||
426 | if (retval) | |
427 | error ("ExeAppReq (step = %d) returned %d", step, retval); | |
428 | } | |
429 | ||
430 | /* Wait until the remote machine stops, then return, | |
431 | storing status in STATUS just as `wait' would. | |
432 | Returns "pid" (though it's not clear what, if anything, that | |
433 | means in the case of this target). */ | |
434 | ||
435 | static int | |
fba45db2 | 436 | v850ice_wait (int pid, struct target_waitstatus *status) |
6027a0b8 JM |
437 | { |
438 | long v850_status; | |
439 | char buf[256]; | |
c5aa993b | 440 | struct MessageIO iob; |
6027a0b8 JM |
441 | int done = 0; |
442 | int count = 0; | |
443 | ||
444 | iob.size = 0; | |
c5aa993b JM |
445 | iob.buf = buf; |
446 | ||
6027a0b8 JM |
447 | do |
448 | { | |
449 | if (count++ % 100000) | |
c5aa993b JM |
450 | { |
451 | ui_loop_hook (0); | |
6027a0b8 | 452 | count = 0; |
c5aa993b | 453 | } |
6027a0b8 JM |
454 | |
455 | v850_status = ExeAppReq ("GDB", GCHECKSTATUS, NULL, &iob); | |
456 | ||
457 | switch (v850_status) | |
c5aa993b JM |
458 | { |
459 | case ICE_Idle: | |
460 | case ICE_Breakpoint: | |
461 | case ICE_Stepped: | |
462 | case ICE_Halted: | |
463 | status->kind = TARGET_WAITKIND_STOPPED; | |
464 | status->value.sig = TARGET_SIGNAL_TRAP; | |
465 | done = 1; | |
466 | break; | |
467 | case ICE_Exception: | |
468 | status->kind = TARGET_WAITKIND_SIGNALLED; | |
469 | status->value.sig = TARGET_SIGNAL_SEGV; | |
470 | done = 1; | |
471 | break; | |
472 | case ICE_Exited: | |
473 | status->kind = TARGET_WAITKIND_EXITED; | |
474 | status->value.integer = 0; | |
475 | done = 1; | |
476 | break; | |
477 | case ICE_Terminated: | |
478 | status->kind = TARGET_WAITKIND_SIGNALLED; | |
479 | status->value.sig = TARGET_SIGNAL_KILL; | |
480 | done = 1; | |
481 | break; | |
482 | default: | |
483 | break; | |
484 | } | |
6027a0b8 JM |
485 | } |
486 | while (!done); | |
c5aa993b | 487 | |
6027a0b8 JM |
488 | return inferior_pid; |
489 | } | |
490 | ||
491 | static int | |
fba45db2 | 492 | convert_register (int regno, char *buf) |
6027a0b8 JM |
493 | { |
494 | if (regno <= 31) | |
495 | sprintf (buf, "r%d", regno); | |
496 | else if (REGISTER_NAME (regno)[0] == 's' | |
497 | && REGISTER_NAME (regno)[1] == 'r') | |
498 | return 0; | |
499 | else | |
500 | sprintf (buf, "%s", REGISTER_NAME (regno)); | |
501 | ||
502 | return 1; | |
503 | } | |
504 | ||
505 | /* Read the remote registers into the block REGS. */ | |
506 | /* Note that the ICE returns register contents as ascii hex strings. We have | |
507 | to convert that to an unsigned long, and then call store_unsigned_integer to | |
508 | convert it to target byte-order if necessary. */ | |
509 | ||
510 | static void | |
fba45db2 | 511 | v850ice_fetch_registers (int regno) |
6027a0b8 JM |
512 | { |
513 | long retval; | |
514 | char cmd[100]; | |
515 | char val[100]; | |
516 | struct MessageIO iob; | |
517 | unsigned long regval; | |
518 | char *p; | |
519 | ||
520 | if (regno == -1) | |
521 | { | |
522 | for (regno = 0; regno < NUM_REGS; regno++) | |
c5aa993b | 523 | v850ice_fetch_registers (regno); |
6027a0b8 JM |
524 | return; |
525 | } | |
526 | ||
527 | strcpy (cmd, "reg "); | |
528 | if (!convert_register (regno, &cmd[4])) | |
529 | return; | |
530 | ||
531 | iob.size = sizeof val; | |
532 | iob.buf = val; | |
533 | retval = ExeAppReq ("GDB", GREADREG, cmd, &iob); | |
534 | if (retval) | |
535 | error ("1: ExeAppReq returned %d: cmd = %s", retval, cmd); | |
536 | ||
537 | regval = strtoul (val, NULL, 16); | |
538 | if (regval == 0 && p == val) | |
539 | error ("v850ice_fetch_registers (%d): bad value from ICE: %s.", | |
c5aa993b | 540 | regno, val); |
6027a0b8 JM |
541 | |
542 | store_unsigned_integer (val, REGISTER_RAW_SIZE (regno), regval); | |
543 | supply_register (regno, val); | |
544 | } | |
545 | ||
546 | /* Store register REGNO, or all registers if REGNO == -1, from the contents | |
547 | of REGISTERS. */ | |
548 | ||
549 | static void | |
fba45db2 | 550 | v850ice_store_registers (int regno) |
6027a0b8 JM |
551 | { |
552 | long retval; | |
553 | char cmd[100]; | |
554 | unsigned long regval; | |
555 | char buf[256]; | |
556 | struct MessageIO iob; | |
557 | iob.size = 0; | |
558 | iob.buf = buf; | |
559 | ||
560 | if (regno == -1) | |
561 | { | |
562 | for (regno = 0; regno < NUM_REGS; regno++) | |
563 | v850ice_store_registers (regno); | |
564 | return; | |
565 | } | |
566 | ||
567 | regval = extract_unsigned_integer (®isters[REGISTER_BYTE (regno)], | |
c5aa993b | 568 | REGISTER_RAW_SIZE (regno)); |
6027a0b8 JM |
569 | strcpy (cmd, "reg "); |
570 | if (!convert_register (regno, &cmd[4])) | |
571 | return; | |
572 | sprintf (cmd + strlen (cmd), "=0x%x", regval); | |
573 | ||
574 | retval = ExeAppReq ("GDB", GWRITEREG, cmd, &iob); | |
575 | if (retval) | |
576 | error ("2: ExeAppReq returned %d: cmd = %s", retval, cmd); | |
577 | } | |
578 | ||
579 | /* Prepare to store registers. Nothing to do here, since the ICE can write one | |
580 | register at a time. */ | |
581 | ||
c5aa993b | 582 | static void |
fba45db2 | 583 | v850ice_prepare_to_store (void) |
6027a0b8 JM |
584 | { |
585 | } | |
586 | ||
587 | /* Read or write LEN bytes from inferior memory at MEMADDR, transferring | |
588 | to or from debugger address MYADDR. Write to inferior if SHOULD_WRITE is | |
5af20574 KB |
589 | nonzero. TARGET is unused. Returns length of data written or read; |
590 | 0 for error. | |
6027a0b8 JM |
591 | |
592 | We can only read/write MAX_BLOCK_SIZE bytes at a time, though, or the DLL | |
5af20574 | 593 | dies. */ |
6027a0b8 JM |
594 | /* ARGSUSED */ |
595 | static int | |
5af20574 KB |
596 | v850ice_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, |
597 | int should_write, struct target_ops *target) | |
6027a0b8 JM |
598 | { |
599 | long retval; | |
600 | char cmd[100]; | |
601 | struct MessageIO iob; | |
602 | int sent; | |
603 | ||
604 | if (should_write) | |
605 | { | |
606 | if (len == 4 || len == 2 || len == 1) | |
c5aa993b JM |
607 | { |
608 | long value = 0; | |
609 | char buf[256]; | |
610 | char c; | |
611 | ||
612 | iob.size = 0; | |
613 | iob.buf = buf; | |
614 | ||
615 | sent = 0; | |
616 | switch (len) | |
617 | { | |
618 | case 4: | |
619 | c = 'w'; | |
620 | value |= (long) ((myaddr[3] << 24) & 0xff000000); | |
621 | value |= (long) ((myaddr[2] << 16) & 0x00ff0000); | |
622 | value |= (long) ((myaddr[1] << 8) & 0x0000ff00); | |
623 | value |= (long) (myaddr[0] & 0x000000ff); | |
624 | break; | |
625 | case 2: | |
626 | c = 'h'; | |
627 | value |= (long) ((myaddr[1] << 8) & 0xff00); | |
628 | value |= (long) (myaddr[0] & 0x00ff); | |
6027a0b8 | 629 | break; |
c5aa993b JM |
630 | case 1: |
631 | c = 'b'; | |
632 | value |= (long) (myaddr[0] & 0xff); | |
633 | break; | |
634 | } | |
635 | ||
636 | sprintf (cmd, "memory %c c 0x%x=0x%x", c, (int) memaddr, value); | |
637 | retval = ExeAppReq ("GDB", GWRITEMEM, cmd, &iob); | |
638 | if (retval == 0) | |
639 | sent = len; | |
640 | } | |
641 | else | |
642 | { | |
643 | sent = 0; | |
644 | do | |
645 | { | |
646 | iob.size = len > MAX_BLOCK_SIZE ? MAX_BLOCK_SIZE : len; | |
647 | iob.buf = myaddr; | |
648 | sprintf (cmd, "memory b c 0x%x=0x00 l=%d", (int) memaddr, iob.size); | |
649 | retval = ExeAppReq ("GDB", GWRITEBLOCK, cmd, &iob); | |
650 | if (retval != 0) | |
651 | break; | |
652 | len -= iob.size; | |
653 | memaddr += iob.size; | |
654 | myaddr += iob.size; | |
655 | sent += iob.size; | |
656 | } | |
657 | while (len > 0); | |
658 | } | |
6027a0b8 JM |
659 | } |
660 | else | |
661 | { | |
662 | unsigned char *tmp; | |
663 | unsigned char *t; | |
664 | int i; | |
c5aa993b | 665 | |
6027a0b8 JM |
666 | tmp = alloca (len + 100); |
667 | t = tmp; | |
668 | memset (tmp + len, 0xff, 100); | |
669 | ||
670 | sent = 0; | |
671 | do | |
c5aa993b JM |
672 | { |
673 | iob.size = len > MAX_BLOCK_SIZE ? MAX_BLOCK_SIZE : len; | |
674 | iob.buf = tmp; | |
675 | sprintf (cmd, "memory b 0x%x l=%d", (int) memaddr, iob.size); | |
676 | retval = ExeAppReq ("GDB", GREADBLOCK, cmd, &iob); | |
677 | if (retval != 0) | |
678 | break; | |
679 | len -= iob.size; | |
680 | memaddr += iob.size; | |
681 | sent += iob.size; | |
682 | tmp += iob.size; | |
683 | } | |
6027a0b8 JM |
684 | while (len > 0); |
685 | ||
686 | if (retval == 0) | |
c5aa993b JM |
687 | { |
688 | for (i = 0; i < 100; i++) | |
689 | { | |
690 | if (t[sent + i] != 0xff) | |
691 | { | |
692 | warning ("GREADBLOCK trashed bytes after transfer area."); | |
693 | break; | |
694 | } | |
695 | } | |
696 | memcpy (myaddr, t, sent); | |
697 | } | |
6027a0b8 | 698 | } |
c5aa993b | 699 | |
6027a0b8 JM |
700 | if (retval != 0) |
701 | error ("3: ExeAppReq returned %d: cmd = %s", retval, cmd); | |
c5aa993b | 702 | |
6027a0b8 JM |
703 | return sent; |
704 | } | |
705 | ||
706 | static void | |
fba45db2 | 707 | v850ice_files_info (struct target_ops *ignore) |
6027a0b8 JM |
708 | { |
709 | puts_filtered ("Debugging a target via the NEC V850 ICE.\n"); | |
710 | } | |
711 | ||
712 | static int | |
fba45db2 | 713 | v850ice_insert_breakpoint (CORE_ADDR addr, char *contents_cache) |
6027a0b8 JM |
714 | { |
715 | long retval; | |
716 | char cmd[100]; | |
717 | char buf[256]; | |
718 | struct MessageIO iob; | |
719 | ||
720 | iob.size = 0; | |
c5aa993b | 721 | iob.buf = buf; |
6027a0b8 JM |
722 | sprintf (cmd, "%d, ", addr); |
723 | ||
724 | retval = ExeAppReq ("GDB", GSETBREAK, cmd, &iob); | |
725 | if (retval) | |
726 | error ("ExeAppReq (GSETBREAK) returned %d: cmd = %s", retval, cmd); | |
727 | ||
728 | return 0; | |
729 | } | |
730 | ||
731 | static int | |
fba45db2 | 732 | v850ice_remove_breakpoint (CORE_ADDR addr, char *contents_cache) |
6027a0b8 JM |
733 | { |
734 | long retval; | |
735 | char cmd[100]; | |
736 | char buf[256]; | |
737 | struct MessageIO iob; | |
738 | ||
739 | iob.size = 0; | |
c5aa993b | 740 | iob.buf = buf; |
6027a0b8 JM |
741 | |
742 | sprintf (cmd, "%d, ", addr); | |
743 | ||
744 | retval = ExeAppReq ("GDB", GREMOVEBREAK, cmd, &iob); | |
745 | if (retval) | |
746 | error ("ExeAppReq (GREMOVEBREAK) returned %d: cmd = %s", retval, cmd); | |
747 | ||
748 | return 0; | |
749 | } | |
750 | ||
751 | static void | |
fba45db2 | 752 | v850ice_kill (void) |
6027a0b8 JM |
753 | { |
754 | target_mourn_inferior (); | |
755 | inferior_pid = 0; | |
756 | } | |
757 | ||
758 | static void | |
fba45db2 | 759 | v850ice_mourn (void) |
6027a0b8 JM |
760 | { |
761 | } | |
762 | ||
763 | static void | |
fba45db2 | 764 | v850ice_load (char *filename, int from_tty) |
6027a0b8 JM |
765 | { |
766 | struct MessageIO iob; | |
767 | char buf[256]; | |
768 | ||
769 | iob.size = 0; | |
c5aa993b JM |
770 | iob.buf = buf; |
771 | generic_load (filename, from_tty); | |
6027a0b8 JM |
772 | ExeAppReq ("GDB", GDOWNLOAD, filename, &iob); |
773 | } | |
774 | ||
775 | static int | |
fba45db2 | 776 | ice_file (char *arg) |
6027a0b8 JM |
777 | { |
778 | char *s; | |
c5aa993b | 779 | |
6027a0b8 JM |
780 | target_detach (NULL, 0); |
781 | pop_target (); | |
782 | ||
783 | printf_unfiltered ("\n"); | |
784 | ||
785 | s = arg; | |
786 | while (*s != '\0') | |
787 | { | |
788 | if (*s == '\\') | |
c5aa993b | 789 | *s = '/'; |
6027a0b8 JM |
790 | s++; |
791 | } | |
792 | ||
793 | /* Safegaurd against confusing the breakpoint routines... */ | |
c5aa993b | 794 | delete_command (NULL, 0); |
6027a0b8 JM |
795 | |
796 | /* Must supress from_tty, otherwise we could start asking if the | |
797 | user really wants to load a new symbol table, etc... */ | |
798 | printf_unfiltered ("Reading symbols from %s...", arg); | |
1adeb98a FN |
799 | exec_open (arg, 0); |
800 | symbol_file_add_main (arg, 0); | |
6027a0b8 JM |
801 | printf_unfiltered ("done\n"); |
802 | ||
1adeb98a | 803 | /* exec_open will kill our target, so reinstall the ICE as |
6027a0b8 JM |
804 | the target. */ |
805 | v850ice_open (NULL, 0); | |
806 | ||
807 | togdb_force_update (); | |
808 | return 1; | |
809 | } | |
810 | ||
811 | static int | |
fba45db2 | 812 | ice_cont (char *c) |
6027a0b8 JM |
813 | { |
814 | printf_filtered ("continue (ice)\n"); | |
815 | ReplyMessage ((LRESULT) 1); | |
816 | ||
3fc11d3e JM |
817 | if (gdbtk_interp == NULL) |
818 | { | |
6027a0b8 | 819 | continue_command (NULL, 1); |
3fc11d3e JM |
820 | } |
821 | else | |
822 | Tcl_Eval (gdbtk_interp, "gdb_immediate continue"); | |
6027a0b8 JM |
823 | |
824 | return 1; | |
825 | } | |
826 | ||
827 | static void | |
5af20574 | 828 | do_gdb (char *cmd, char *str, void (*func) (char *, int), int count) |
6027a0b8 JM |
829 | { |
830 | ReplyMessage ((LRESULT) 1); | |
831 | ||
832 | while (count--) | |
833 | { | |
834 | printf_unfiltered (str); | |
835 | ||
3fc11d3e JM |
836 | if (gdbtk_interp == NULL) |
837 | { | |
6027a0b8 | 838 | func (NULL, 0); |
3fc11d3e JM |
839 | } |
840 | else | |
841 | Tcl_Eval (gdbtk_interp, cmd); | |
6027a0b8 JM |
842 | } |
843 | } | |
844 | ||
845 | ||
846 | static int | |
fba45db2 | 847 | ice_stepi (char *c) |
6027a0b8 JM |
848 | { |
849 | int count = (int) c; | |
850 | ||
851 | do_gdb ("gdb_immediate stepi", "stepi (ice)\n", stepi_command, count); | |
852 | return 1; | |
853 | } | |
854 | ||
855 | static int | |
fba45db2 | 856 | ice_nexti (char *c) |
6027a0b8 JM |
857 | { |
858 | int count = (int) c; | |
859 | ||
860 | do_gdb ("gdb_immediate nexti", "nexti (ice)\n", nexti_command, count); | |
861 | return 1; | |
862 | } | |
863 | ||
864 | static void | |
fba45db2 | 865 | v850ice_command (char *arg, int from_tty) |
6027a0b8 JM |
866 | { |
867 | struct MessageIO iob; | |
868 | char buf[256]; | |
869 | ||
870 | iob.buf = buf; | |
871 | iob.size = 0; | |
872 | ExeAppReq ("GDB", GCOMMAND, arg, &iob); | |
873 | } | |
874 | ||
875 | static void | |
876 | togdb_force_update (void) | |
877 | { | |
3fc11d3e JM |
878 | if (gdbtk_interp != NULL) |
879 | Tcl_Eval (gdbtk_interp, "gdbtk_update"); | |
6027a0b8 JM |
880 | } |
881 | ||
3fc11d3e | 882 | static void |
fba45db2 | 883 | view_source (CORE_ADDR addr) |
3fc11d3e JM |
884 | { |
885 | char c[256]; | |
886 | ||
887 | if (gdbtk_interp != NULL) | |
888 | { | |
889 | sprintf (c, "catch {set src [lindex [ManagedWin::find SrcWin] 0]\n$src location BROWSE [gdb_loc *0x%x]}", addr); | |
890 | Tcl_Eval (gdbtk_interp, c); | |
891 | } | |
892 | } | |
6027a0b8 JM |
893 | |
894 | /* Define the target subroutine names */ | |
895 | ||
c5aa993b JM |
896 | static void |
897 | init_850ice_ops (void) | |
6027a0b8 | 898 | { |
c5aa993b JM |
899 | v850ice_ops.to_shortname = "ice"; |
900 | v850ice_ops.to_longname = "NEC V850 ICE interface"; | |
901 | v850ice_ops.to_doc = "Debug a system controlled by a NEC 850 ICE."; | |
902 | v850ice_ops.to_open = v850ice_open; | |
903 | v850ice_ops.to_close = v850ice_close; | |
904 | v850ice_ops.to_attach = NULL; | |
905 | v850ice_ops.to_post_attach = NULL; | |
906 | v850ice_ops.to_require_attach = NULL; | |
907 | v850ice_ops.to_detach = v850ice_detach; | |
908 | v850ice_ops.to_require_detach = NULL; | |
909 | v850ice_ops.to_resume = v850ice_resume; | |
910 | v850ice_ops.to_wait = v850ice_wait; | |
911 | v850ice_ops.to_post_wait = NULL; | |
912 | v850ice_ops.to_fetch_registers = v850ice_fetch_registers; | |
913 | v850ice_ops.to_store_registers = v850ice_store_registers; | |
914 | v850ice_ops.to_prepare_to_store = v850ice_prepare_to_store; | |
915 | v850ice_ops.to_xfer_memory = v850ice_xfer_memory; | |
916 | v850ice_ops.to_files_info = v850ice_files_info; | |
917 | v850ice_ops.to_insert_breakpoint = v850ice_insert_breakpoint; | |
918 | v850ice_ops.to_remove_breakpoint = v850ice_remove_breakpoint; | |
919 | v850ice_ops.to_terminal_init = NULL; | |
920 | v850ice_ops.to_terminal_inferior = NULL; | |
921 | v850ice_ops.to_terminal_ours_for_output = NULL; | |
922 | v850ice_ops.to_terminal_ours = NULL; | |
923 | v850ice_ops.to_terminal_info = NULL; | |
924 | v850ice_ops.to_kill = v850ice_kill; | |
925 | v850ice_ops.to_load = v850ice_load; | |
926 | v850ice_ops.to_lookup_symbol = NULL; | |
927 | v850ice_ops.to_create_inferior = NULL; | |
928 | v850ice_ops.to_mourn_inferior = v850ice_mourn; | |
929 | v850ice_ops.to_can_run = 0; | |
930 | v850ice_ops.to_notice_signals = 0; | |
931 | v850ice_ops.to_thread_alive = NULL; | |
932 | v850ice_ops.to_stop = v850ice_stop; | |
6027a0b8 | 933 | v850ice_ops.to_pid_to_exec_file = NULL; |
c5aa993b JM |
934 | v850ice_ops.to_core_file_to_sym_file = NULL; |
935 | v850ice_ops.to_stratum = process_stratum; | |
936 | v850ice_ops.DONT_USE = NULL; | |
937 | v850ice_ops.to_has_all_memory = 1; | |
938 | v850ice_ops.to_has_memory = 1; | |
939 | v850ice_ops.to_has_stack = 1; | |
940 | v850ice_ops.to_has_registers = 1; | |
941 | v850ice_ops.to_has_execution = 1; | |
942 | v850ice_ops.to_sections = NULL; | |
943 | v850ice_ops.to_sections_end = NULL; | |
944 | v850ice_ops.to_magic = OPS_MAGIC; | |
6027a0b8 JM |
945 | } |
946 | ||
947 | void | |
fba45db2 | 948 | _initialize_v850ice (void) |
6027a0b8 JM |
949 | { |
950 | init_850ice_ops (); | |
951 | add_target (&v850ice_ops); | |
952 | ||
953 | add_com ("ice", class_obscure, v850ice_command, | |
c5aa993b | 954 | "Send command to ICE"); |
6027a0b8 | 955 | } |