Commit | Line | Data |
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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 | |
fba45db2 | 195 | init_hidden_window (void) |
6027a0b8 JM |
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 | 244 | static LRESULT CALLBACK |
fba45db2 | 245 | v850ice_wndproc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) |
6027a0b8 JM |
246 | { |
247 | LRESULT result = FALSE; | |
248 | ||
249 | switch (message) | |
250 | { | |
251 | case WM_SYM_TO_ADDR: | |
252 | MessageBox (0, "Symbol resolution\nNot implemented", "GDB", MB_OK); | |
253 | break; | |
254 | case WM_ADDR_TO_SYM: | |
255 | MessageBox (0, "Address resolution\nNot implemented", "GDB", MB_OK); | |
256 | break; | |
257 | case WM_SOURCE: | |
3fc11d3e | 258 | view_source ((CORE_ADDR) lParam); |
6027a0b8 JM |
259 | break; |
260 | case WM_STATE_CHANGE: | |
261 | switch (wParam) | |
c5aa993b JM |
262 | { |
263 | case STATE_CHANGE_LOAD: | |
264 | { | |
265 | struct MessageIO iob; | |
266 | char buf[128]; | |
267 | ||
268 | iob.buf = buf; | |
269 | iob.size = 128; | |
270 | ||
271 | /* Load in a new file... Need filename */ | |
272 | ExeAppReq ("GDB", GLOADFILENAME, NULL, &iob); | |
273 | if (!catch_errors ((catch_errors_ftype *) ice_file, iob.buf, "", RETURN_MASK_ALL)) | |
274 | printf_unfiltered ("load errored\n"); | |
275 | } | |
276 | break; | |
277 | case STATE_CHANGE_RESET: | |
278 | registers_changed (); | |
279 | flush_cached_frames (); | |
280 | togdb_force_update (); | |
281 | result = TRUE; | |
282 | break; | |
283 | case STATE_CHANGE_REGS: | |
284 | registers_changed (); | |
285 | togdb_force_update (); | |
286 | result = TRUE; | |
287 | break; | |
288 | case STATE_CHANGE_CONT: | |
289 | if (!catch_errors ((catch_errors_ftype *) ice_cont, NULL, "", RETURN_MASK_ALL)) | |
290 | printf_unfiltered ("continue errored\n"); | |
291 | result = TRUE; | |
292 | break; | |
293 | case STATE_CHANGE_STEPI: | |
294 | if (!catch_errors ((catch_errors_ftype *) ice_stepi, (PTR) (int) lParam, "", | |
295 | RETURN_MASK_ALL)) | |
296 | printf_unfiltered ("stepi errored\n"); | |
297 | result = TRUE; | |
298 | break; | |
299 | case STATE_CHANGE_NEXTI: | |
300 | if (!catch_errors ((catch_errors_ftype *) ice_nexti, (PTR) (int) lParam, "", | |
301 | RETURN_MASK_ALL)) | |
302 | printf_unfiltered ("nexti errored\n"); | |
303 | result = TRUE; | |
304 | break; | |
305 | } | |
6027a0b8 JM |
306 | } |
307 | ||
308 | if (result == FALSE) | |
309 | return DefWindowProc (hwnd, message, wParam, lParam); | |
310 | ||
311 | return FALSE; | |
312 | } | |
313 | ||
314 | /* Code for opening a connection to the ICE. */ | |
315 | ||
316 | static void | |
fba45db2 | 317 | v850ice_open (char *name, int from_tty) |
6027a0b8 JM |
318 | { |
319 | HINSTANCE handle; | |
320 | ||
321 | if (name) | |
322 | error ("Too many arguments."); | |
323 | ||
324 | target_preopen (from_tty); | |
325 | ||
326 | unpush_target (&v850ice_ops); | |
327 | ||
328 | if (from_tty) | |
329 | puts_filtered ("V850ice debugging\n"); | |
330 | ||
331 | push_target (&v850ice_ops); /* Switch to using v850ice target now */ | |
332 | ||
333 | target_terminal_init (); | |
334 | ||
335 | /* Initialize everything necessary to facilitate communication | |
336 | between QBox, gdb, and the DLLs which control the ICE */ | |
337 | if (ExeAppReq == NULL) | |
338 | { | |
339 | handle = LoadLibrary ("necmsg.dll"); | |
340 | if (handle == NULL) | |
c5aa993b | 341 | error ("Cannot load necmsg.dll"); |
6027a0b8 | 342 | |
ac1d1083 | 343 | ExeAppReq = (long (*) (char *, long, char *, struct MessageIO *)) |
c5aa993b | 344 | GetProcAddress (handle, "ExeAppReq"); |
ac1d1083 | 345 | RegisterClient = (long (*) (HWND)) |
c5aa993b | 346 | GetProcAddress (handle, "RegisterClient"); |
ac1d1083 | 347 | UnregisterClient = (long (*) (void)) |
c5aa993b | 348 | GetProcAddress (handle, "UnregisterClient"); |
6027a0b8 JM |
349 | |
350 | if (ExeAppReq == NULL || RegisterClient == NULL || UnregisterClient == NULL) | |
c5aa993b | 351 | error ("Could not find requisite functions in necmsg.dll."); |
6027a0b8 JM |
352 | |
353 | if (!init_hidden_window ()) | |
c5aa993b | 354 | error ("could not initialize message handling"); |
6027a0b8 JM |
355 | } |
356 | ||
357 | /* Tell the DLL we are here */ | |
358 | RegisterClient (hidden_hwnd); | |
359 | ||
360 | ice_open = 1; | |
361 | ||
362 | /* Without this, some commands which require an active target (such as kill) | |
363 | won't work. This variable serves (at least) double duty as both the pid | |
364 | of the target process (if it has such), and as a flag indicating that a | |
365 | target is active. These functions should be split out into seperate | |
366 | variables, especially since GDB will someday have a notion of debugging | |
367 | several processes. */ | |
368 | inferior_pid = 42000; | |
369 | ||
370 | start_remote (); | |
371 | return; | |
372 | } | |
373 | ||
374 | /* Clean up connection to a remote debugger. */ | |
375 | ||
376 | /* ARGSUSED */ | |
377 | static void | |
fba45db2 | 378 | v850ice_close (int quitting) |
6027a0b8 JM |
379 | { |
380 | if (ice_open) | |
381 | { | |
382 | UnregisterClient (); | |
383 | ice_open = 0; | |
384 | inferior_pid = 0; | |
385 | } | |
386 | } | |
387 | ||
388 | /* Stop the process on the ice. */ | |
389 | static void | |
fba45db2 | 390 | v850ice_stop (void) |
6027a0b8 JM |
391 | { |
392 | /* This is silly, but it works... */ | |
393 | v850ice_command ("stop", 0); | |
394 | } | |
395 | ||
396 | static void | |
fba45db2 | 397 | v850ice_detach (char *args, int from_tty) |
6027a0b8 JM |
398 | { |
399 | if (args) | |
400 | error ("Argument given to \"detach\" when remotely debugging."); | |
401 | ||
402 | pop_target (); | |
403 | if (from_tty) | |
404 | puts_filtered ("Ending v850ice debugging.\n"); | |
405 | } | |
406 | ||
407 | /* Tell the remote machine to resume. */ | |
408 | ||
409 | static void | |
fba45db2 | 410 | v850ice_resume (int pid, int step, enum target_signal siggnal) |
6027a0b8 | 411 | { |
c5aa993b JM |
412 | long retval; |
413 | char buf[256]; | |
414 | struct MessageIO iob; | |
6027a0b8 JM |
415 | |
416 | iob.size = 0; | |
c5aa993b | 417 | iob.buf = buf; |
6027a0b8 JM |
418 | |
419 | if (step) | |
420 | retval = ExeAppReq ("GDB", GSINGLESTEP, "step", &iob); | |
421 | else | |
422 | retval = ExeAppReq ("GDB", GRESUME, "run", &iob); | |
423 | ||
424 | if (retval) | |
425 | error ("ExeAppReq (step = %d) returned %d", step, retval); | |
426 | } | |
427 | ||
428 | /* Wait until the remote machine stops, then return, | |
429 | storing status in STATUS just as `wait' would. | |
430 | Returns "pid" (though it's not clear what, if anything, that | |
431 | means in the case of this target). */ | |
432 | ||
433 | static int | |
fba45db2 | 434 | v850ice_wait (int pid, struct target_waitstatus *status) |
6027a0b8 JM |
435 | { |
436 | long v850_status; | |
437 | char buf[256]; | |
c5aa993b | 438 | struct MessageIO iob; |
6027a0b8 JM |
439 | int done = 0; |
440 | int count = 0; | |
441 | ||
442 | iob.size = 0; | |
c5aa993b JM |
443 | iob.buf = buf; |
444 | ||
6027a0b8 JM |
445 | do |
446 | { | |
447 | if (count++ % 100000) | |
c5aa993b JM |
448 | { |
449 | ui_loop_hook (0); | |
6027a0b8 | 450 | count = 0; |
c5aa993b | 451 | } |
6027a0b8 JM |
452 | |
453 | v850_status = ExeAppReq ("GDB", GCHECKSTATUS, NULL, &iob); | |
454 | ||
455 | switch (v850_status) | |
c5aa993b JM |
456 | { |
457 | case ICE_Idle: | |
458 | case ICE_Breakpoint: | |
459 | case ICE_Stepped: | |
460 | case ICE_Halted: | |
461 | status->kind = TARGET_WAITKIND_STOPPED; | |
462 | status->value.sig = TARGET_SIGNAL_TRAP; | |
463 | done = 1; | |
464 | break; | |
465 | case ICE_Exception: | |
466 | status->kind = TARGET_WAITKIND_SIGNALLED; | |
467 | status->value.sig = TARGET_SIGNAL_SEGV; | |
468 | done = 1; | |
469 | break; | |
470 | case ICE_Exited: | |
471 | status->kind = TARGET_WAITKIND_EXITED; | |
472 | status->value.integer = 0; | |
473 | done = 1; | |
474 | break; | |
475 | case ICE_Terminated: | |
476 | status->kind = TARGET_WAITKIND_SIGNALLED; | |
477 | status->value.sig = TARGET_SIGNAL_KILL; | |
478 | done = 1; | |
479 | break; | |
480 | default: | |
481 | break; | |
482 | } | |
6027a0b8 JM |
483 | } |
484 | while (!done); | |
c5aa993b | 485 | |
6027a0b8 JM |
486 | return inferior_pid; |
487 | } | |
488 | ||
489 | static int | |
fba45db2 | 490 | convert_register (int regno, char *buf) |
6027a0b8 JM |
491 | { |
492 | if (regno <= 31) | |
493 | sprintf (buf, "r%d", regno); | |
494 | else if (REGISTER_NAME (regno)[0] == 's' | |
495 | && REGISTER_NAME (regno)[1] == 'r') | |
496 | return 0; | |
497 | else | |
498 | sprintf (buf, "%s", REGISTER_NAME (regno)); | |
499 | ||
500 | return 1; | |
501 | } | |
502 | ||
503 | /* Read the remote registers into the block REGS. */ | |
504 | /* Note that the ICE returns register contents as ascii hex strings. We have | |
505 | to convert that to an unsigned long, and then call store_unsigned_integer to | |
506 | convert it to target byte-order if necessary. */ | |
507 | ||
508 | static void | |
fba45db2 | 509 | v850ice_fetch_registers (int regno) |
6027a0b8 JM |
510 | { |
511 | long retval; | |
512 | char cmd[100]; | |
513 | char val[100]; | |
514 | struct MessageIO iob; | |
515 | unsigned long regval; | |
516 | char *p; | |
517 | ||
518 | if (regno == -1) | |
519 | { | |
520 | for (regno = 0; regno < NUM_REGS; regno++) | |
c5aa993b | 521 | v850ice_fetch_registers (regno); |
6027a0b8 JM |
522 | return; |
523 | } | |
524 | ||
525 | strcpy (cmd, "reg "); | |
526 | if (!convert_register (regno, &cmd[4])) | |
527 | return; | |
528 | ||
529 | iob.size = sizeof val; | |
530 | iob.buf = val; | |
531 | retval = ExeAppReq ("GDB", GREADREG, cmd, &iob); | |
532 | if (retval) | |
533 | error ("1: ExeAppReq returned %d: cmd = %s", retval, cmd); | |
534 | ||
535 | regval = strtoul (val, NULL, 16); | |
536 | if (regval == 0 && p == val) | |
537 | error ("v850ice_fetch_registers (%d): bad value from ICE: %s.", | |
c5aa993b | 538 | regno, val); |
6027a0b8 JM |
539 | |
540 | store_unsigned_integer (val, REGISTER_RAW_SIZE (regno), regval); | |
541 | supply_register (regno, val); | |
542 | } | |
543 | ||
544 | /* Store register REGNO, or all registers if REGNO == -1, from the contents | |
545 | of REGISTERS. */ | |
546 | ||
547 | static void | |
fba45db2 | 548 | v850ice_store_registers (int regno) |
6027a0b8 JM |
549 | { |
550 | long retval; | |
551 | char cmd[100]; | |
552 | unsigned long regval; | |
553 | char buf[256]; | |
554 | struct MessageIO iob; | |
555 | iob.size = 0; | |
556 | iob.buf = buf; | |
557 | ||
558 | if (regno == -1) | |
559 | { | |
560 | for (regno = 0; regno < NUM_REGS; regno++) | |
561 | v850ice_store_registers (regno); | |
562 | return; | |
563 | } | |
564 | ||
565 | regval = extract_unsigned_integer (®isters[REGISTER_BYTE (regno)], | |
c5aa993b | 566 | REGISTER_RAW_SIZE (regno)); |
6027a0b8 JM |
567 | strcpy (cmd, "reg "); |
568 | if (!convert_register (regno, &cmd[4])) | |
569 | return; | |
570 | sprintf (cmd + strlen (cmd), "=0x%x", regval); | |
571 | ||
572 | retval = ExeAppReq ("GDB", GWRITEREG, cmd, &iob); | |
573 | if (retval) | |
574 | error ("2: ExeAppReq returned %d: cmd = %s", retval, cmd); | |
575 | } | |
576 | ||
577 | /* Prepare to store registers. Nothing to do here, since the ICE can write one | |
578 | register at a time. */ | |
579 | ||
c5aa993b | 580 | static void |
fba45db2 | 581 | v850ice_prepare_to_store (void) |
6027a0b8 JM |
582 | { |
583 | } | |
584 | ||
585 | /* Read or write LEN bytes from inferior memory at MEMADDR, transferring | |
586 | to or from debugger address MYADDR. Write to inferior if SHOULD_WRITE is | |
587 | nonzero. Returns length of data written or read; 0 for error. | |
588 | ||
589 | We can only read/write MAX_BLOCK_SIZE bytes at a time, though, or the DLL | |
590 | dies */ | |
591 | /* ARGSUSED */ | |
592 | static int | |
593 | v850ice_xfer_memory (memaddr, myaddr, len, should_write, target) | |
594 | CORE_ADDR memaddr; | |
595 | char *myaddr; | |
596 | int len; | |
597 | int should_write; | |
c5aa993b | 598 | struct target_ops *target; /* ignored */ |
6027a0b8 JM |
599 | { |
600 | long retval; | |
601 | char cmd[100]; | |
602 | struct MessageIO iob; | |
603 | int sent; | |
604 | ||
605 | if (should_write) | |
606 | { | |
607 | if (len == 4 || len == 2 || len == 1) | |
c5aa993b JM |
608 | { |
609 | long value = 0; | |
610 | char buf[256]; | |
611 | char c; | |
612 | ||
613 | iob.size = 0; | |
614 | iob.buf = buf; | |
615 | ||
616 | sent = 0; | |
617 | switch (len) | |
618 | { | |
619 | case 4: | |
620 | c = 'w'; | |
621 | value |= (long) ((myaddr[3] << 24) & 0xff000000); | |
622 | value |= (long) ((myaddr[2] << 16) & 0x00ff0000); | |
623 | value |= (long) ((myaddr[1] << 8) & 0x0000ff00); | |
624 | value |= (long) (myaddr[0] & 0x000000ff); | |
625 | break; | |
626 | case 2: | |
627 | c = 'h'; | |
628 | value |= (long) ((myaddr[1] << 8) & 0xff00); | |
629 | value |= (long) (myaddr[0] & 0x00ff); | |
6027a0b8 | 630 | break; |
c5aa993b JM |
631 | case 1: |
632 | c = 'b'; | |
633 | value |= (long) (myaddr[0] & 0xff); | |
634 | break; | |
635 | } | |
636 | ||
637 | sprintf (cmd, "memory %c c 0x%x=0x%x", c, (int) memaddr, value); | |
638 | retval = ExeAppReq ("GDB", GWRITEMEM, cmd, &iob); | |
639 | if (retval == 0) | |
640 | sent = len; | |
641 | } | |
642 | else | |
643 | { | |
644 | sent = 0; | |
645 | do | |
646 | { | |
647 | iob.size = len > MAX_BLOCK_SIZE ? MAX_BLOCK_SIZE : len; | |
648 | iob.buf = myaddr; | |
649 | sprintf (cmd, "memory b c 0x%x=0x00 l=%d", (int) memaddr, iob.size); | |
650 | retval = ExeAppReq ("GDB", GWRITEBLOCK, cmd, &iob); | |
651 | if (retval != 0) | |
652 | break; | |
653 | len -= iob.size; | |
654 | memaddr += iob.size; | |
655 | myaddr += iob.size; | |
656 | sent += iob.size; | |
657 | } | |
658 | while (len > 0); | |
659 | } | |
6027a0b8 JM |
660 | } |
661 | else | |
662 | { | |
663 | unsigned char *tmp; | |
664 | unsigned char *t; | |
665 | int i; | |
c5aa993b | 666 | |
6027a0b8 JM |
667 | tmp = alloca (len + 100); |
668 | t = tmp; | |
669 | memset (tmp + len, 0xff, 100); | |
670 | ||
671 | sent = 0; | |
672 | do | |
c5aa993b JM |
673 | { |
674 | iob.size = len > MAX_BLOCK_SIZE ? MAX_BLOCK_SIZE : len; | |
675 | iob.buf = tmp; | |
676 | sprintf (cmd, "memory b 0x%x l=%d", (int) memaddr, iob.size); | |
677 | retval = ExeAppReq ("GDB", GREADBLOCK, cmd, &iob); | |
678 | if (retval != 0) | |
679 | break; | |
680 | len -= iob.size; | |
681 | memaddr += iob.size; | |
682 | sent += iob.size; | |
683 | tmp += iob.size; | |
684 | } | |
6027a0b8 JM |
685 | while (len > 0); |
686 | ||
687 | if (retval == 0) | |
c5aa993b JM |
688 | { |
689 | for (i = 0; i < 100; i++) | |
690 | { | |
691 | if (t[sent + i] != 0xff) | |
692 | { | |
693 | warning ("GREADBLOCK trashed bytes after transfer area."); | |
694 | break; | |
695 | } | |
696 | } | |
697 | memcpy (myaddr, t, sent); | |
698 | } | |
6027a0b8 | 699 | } |
c5aa993b | 700 | |
6027a0b8 JM |
701 | if (retval != 0) |
702 | error ("3: ExeAppReq returned %d: cmd = %s", retval, cmd); | |
c5aa993b | 703 | |
6027a0b8 JM |
704 | return sent; |
705 | } | |
706 | ||
707 | static void | |
fba45db2 | 708 | v850ice_files_info (struct target_ops *ignore) |
6027a0b8 JM |
709 | { |
710 | puts_filtered ("Debugging a target via the NEC V850 ICE.\n"); | |
711 | } | |
712 | ||
713 | static int | |
fba45db2 | 714 | v850ice_insert_breakpoint (CORE_ADDR addr, char *contents_cache) |
6027a0b8 JM |
715 | { |
716 | long retval; | |
717 | char cmd[100]; | |
718 | char buf[256]; | |
719 | struct MessageIO iob; | |
720 | ||
721 | iob.size = 0; | |
c5aa993b | 722 | iob.buf = buf; |
6027a0b8 JM |
723 | sprintf (cmd, "%d, ", addr); |
724 | ||
725 | retval = ExeAppReq ("GDB", GSETBREAK, cmd, &iob); | |
726 | if (retval) | |
727 | error ("ExeAppReq (GSETBREAK) returned %d: cmd = %s", retval, cmd); | |
728 | ||
729 | return 0; | |
730 | } | |
731 | ||
732 | static int | |
fba45db2 | 733 | v850ice_remove_breakpoint (CORE_ADDR addr, char *contents_cache) |
6027a0b8 JM |
734 | { |
735 | long retval; | |
736 | char cmd[100]; | |
737 | char buf[256]; | |
738 | struct MessageIO iob; | |
739 | ||
740 | iob.size = 0; | |
c5aa993b | 741 | iob.buf = buf; |
6027a0b8 JM |
742 | |
743 | sprintf (cmd, "%d, ", addr); | |
744 | ||
745 | retval = ExeAppReq ("GDB", GREMOVEBREAK, cmd, &iob); | |
746 | if (retval) | |
747 | error ("ExeAppReq (GREMOVEBREAK) returned %d: cmd = %s", retval, cmd); | |
748 | ||
749 | return 0; | |
750 | } | |
751 | ||
752 | static void | |
fba45db2 | 753 | v850ice_kill (void) |
6027a0b8 JM |
754 | { |
755 | target_mourn_inferior (); | |
756 | inferior_pid = 0; | |
757 | } | |
758 | ||
759 | static void | |
fba45db2 | 760 | v850ice_mourn (void) |
6027a0b8 JM |
761 | { |
762 | } | |
763 | ||
764 | static void | |
fba45db2 | 765 | v850ice_load (char *filename, int from_tty) |
6027a0b8 JM |
766 | { |
767 | struct MessageIO iob; | |
768 | char buf[256]; | |
769 | ||
770 | iob.size = 0; | |
c5aa993b JM |
771 | iob.buf = buf; |
772 | generic_load (filename, from_tty); | |
6027a0b8 JM |
773 | ExeAppReq ("GDB", GDOWNLOAD, filename, &iob); |
774 | } | |
775 | ||
776 | static int | |
fba45db2 | 777 | ice_file (char *arg) |
6027a0b8 JM |
778 | { |
779 | char *s; | |
c5aa993b | 780 | |
6027a0b8 JM |
781 | target_detach (NULL, 0); |
782 | pop_target (); | |
783 | ||
784 | printf_unfiltered ("\n"); | |
785 | ||
786 | s = arg; | |
787 | while (*s != '\0') | |
788 | { | |
789 | if (*s == '\\') | |
c5aa993b | 790 | *s = '/'; |
6027a0b8 JM |
791 | s++; |
792 | } | |
793 | ||
794 | /* Safegaurd against confusing the breakpoint routines... */ | |
c5aa993b | 795 | delete_command (NULL, 0); |
6027a0b8 JM |
796 | |
797 | /* Must supress from_tty, otherwise we could start asking if the | |
798 | user really wants to load a new symbol table, etc... */ | |
799 | printf_unfiltered ("Reading symbols from %s...", arg); | |
800 | exec_file_command (arg, 0); | |
801 | symbol_file_command (arg, 0); | |
802 | printf_unfiltered ("done\n"); | |
803 | ||
804 | /* exec_file_command will kill our target, so reinstall the ICE as | |
805 | the target. */ | |
806 | v850ice_open (NULL, 0); | |
807 | ||
808 | togdb_force_update (); | |
809 | return 1; | |
810 | } | |
811 | ||
812 | static int | |
fba45db2 | 813 | ice_cont (char *c) |
6027a0b8 JM |
814 | { |
815 | printf_filtered ("continue (ice)\n"); | |
816 | ReplyMessage ((LRESULT) 1); | |
817 | ||
3fc11d3e JM |
818 | if (gdbtk_interp == NULL) |
819 | { | |
6027a0b8 | 820 | continue_command (NULL, 1); |
3fc11d3e JM |
821 | } |
822 | else | |
823 | Tcl_Eval (gdbtk_interp, "gdb_immediate continue"); | |
6027a0b8 JM |
824 | |
825 | return 1; | |
826 | } | |
827 | ||
828 | static void | |
829 | do_gdb (cmd, str, func, count) | |
830 | char *cmd; | |
831 | char *str; | |
507f3c78 | 832 | void (*func) (char *, int); |
6027a0b8 JM |
833 | int count; |
834 | { | |
835 | ReplyMessage ((LRESULT) 1); | |
836 | ||
837 | while (count--) | |
838 | { | |
839 | printf_unfiltered (str); | |
840 | ||
3fc11d3e JM |
841 | if (gdbtk_interp == NULL) |
842 | { | |
6027a0b8 | 843 | func (NULL, 0); |
3fc11d3e JM |
844 | } |
845 | else | |
846 | Tcl_Eval (gdbtk_interp, cmd); | |
6027a0b8 JM |
847 | } |
848 | } | |
849 | ||
850 | ||
851 | static int | |
fba45db2 | 852 | ice_stepi (char *c) |
6027a0b8 JM |
853 | { |
854 | int count = (int) c; | |
855 | ||
856 | do_gdb ("gdb_immediate stepi", "stepi (ice)\n", stepi_command, count); | |
857 | return 1; | |
858 | } | |
859 | ||
860 | static int | |
fba45db2 | 861 | ice_nexti (char *c) |
6027a0b8 JM |
862 | { |
863 | int count = (int) c; | |
864 | ||
865 | do_gdb ("gdb_immediate nexti", "nexti (ice)\n", nexti_command, count); | |
866 | return 1; | |
867 | } | |
868 | ||
869 | static void | |
fba45db2 | 870 | v850ice_command (char *arg, int from_tty) |
6027a0b8 JM |
871 | { |
872 | struct MessageIO iob; | |
873 | char buf[256]; | |
874 | ||
875 | iob.buf = buf; | |
876 | iob.size = 0; | |
877 | ExeAppReq ("GDB", GCOMMAND, arg, &iob); | |
878 | } | |
879 | ||
880 | static void | |
881 | togdb_force_update (void) | |
882 | { | |
3fc11d3e JM |
883 | if (gdbtk_interp != NULL) |
884 | Tcl_Eval (gdbtk_interp, "gdbtk_update"); | |
6027a0b8 JM |
885 | } |
886 | ||
3fc11d3e | 887 | static void |
fba45db2 | 888 | view_source (CORE_ADDR addr) |
3fc11d3e JM |
889 | { |
890 | char c[256]; | |
891 | ||
892 | if (gdbtk_interp != NULL) | |
893 | { | |
894 | sprintf (c, "catch {set src [lindex [ManagedWin::find SrcWin] 0]\n$src location BROWSE [gdb_loc *0x%x]}", addr); | |
895 | Tcl_Eval (gdbtk_interp, c); | |
896 | } | |
897 | } | |
6027a0b8 JM |
898 | |
899 | /* Define the target subroutine names */ | |
900 | ||
c5aa993b JM |
901 | static void |
902 | init_850ice_ops (void) | |
6027a0b8 | 903 | { |
c5aa993b JM |
904 | v850ice_ops.to_shortname = "ice"; |
905 | v850ice_ops.to_longname = "NEC V850 ICE interface"; | |
906 | v850ice_ops.to_doc = "Debug a system controlled by a NEC 850 ICE."; | |
907 | v850ice_ops.to_open = v850ice_open; | |
908 | v850ice_ops.to_close = v850ice_close; | |
909 | v850ice_ops.to_attach = NULL; | |
910 | v850ice_ops.to_post_attach = NULL; | |
911 | v850ice_ops.to_require_attach = NULL; | |
912 | v850ice_ops.to_detach = v850ice_detach; | |
913 | v850ice_ops.to_require_detach = NULL; | |
914 | v850ice_ops.to_resume = v850ice_resume; | |
915 | v850ice_ops.to_wait = v850ice_wait; | |
916 | v850ice_ops.to_post_wait = NULL; | |
917 | v850ice_ops.to_fetch_registers = v850ice_fetch_registers; | |
918 | v850ice_ops.to_store_registers = v850ice_store_registers; | |
919 | v850ice_ops.to_prepare_to_store = v850ice_prepare_to_store; | |
920 | v850ice_ops.to_xfer_memory = v850ice_xfer_memory; | |
921 | v850ice_ops.to_files_info = v850ice_files_info; | |
922 | v850ice_ops.to_insert_breakpoint = v850ice_insert_breakpoint; | |
923 | v850ice_ops.to_remove_breakpoint = v850ice_remove_breakpoint; | |
924 | v850ice_ops.to_terminal_init = NULL; | |
925 | v850ice_ops.to_terminal_inferior = NULL; | |
926 | v850ice_ops.to_terminal_ours_for_output = NULL; | |
927 | v850ice_ops.to_terminal_ours = NULL; | |
928 | v850ice_ops.to_terminal_info = NULL; | |
929 | v850ice_ops.to_kill = v850ice_kill; | |
930 | v850ice_ops.to_load = v850ice_load; | |
931 | v850ice_ops.to_lookup_symbol = NULL; | |
932 | v850ice_ops.to_create_inferior = NULL; | |
933 | v850ice_ops.to_mourn_inferior = v850ice_mourn; | |
934 | v850ice_ops.to_can_run = 0; | |
935 | v850ice_ops.to_notice_signals = 0; | |
936 | v850ice_ops.to_thread_alive = NULL; | |
937 | v850ice_ops.to_stop = v850ice_stop; | |
6027a0b8 | 938 | v850ice_ops.to_pid_to_exec_file = NULL; |
c5aa993b JM |
939 | v850ice_ops.to_core_file_to_sym_file = NULL; |
940 | v850ice_ops.to_stratum = process_stratum; | |
941 | v850ice_ops.DONT_USE = NULL; | |
942 | v850ice_ops.to_has_all_memory = 1; | |
943 | v850ice_ops.to_has_memory = 1; | |
944 | v850ice_ops.to_has_stack = 1; | |
945 | v850ice_ops.to_has_registers = 1; | |
946 | v850ice_ops.to_has_execution = 1; | |
947 | v850ice_ops.to_sections = NULL; | |
948 | v850ice_ops.to_sections_end = NULL; | |
949 | v850ice_ops.to_magic = OPS_MAGIC; | |
6027a0b8 JM |
950 | } |
951 | ||
952 | void | |
fba45db2 | 953 | _initialize_v850ice (void) |
6027a0b8 JM |
954 | { |
955 | init_850ice_ops (); | |
956 | add_target (&v850ice_ops); | |
957 | ||
958 | add_com ("ice", class_obscure, v850ice_command, | |
c5aa993b | 959 | "Send command to ICE"); |
6027a0b8 | 960 | } |