Commit | Line | Data |
---|---|---|
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 | |
507f3c78 | 53 | extern int (*ui_loop_hook) (int); |
6027a0b8 JM |
54 | |
55 | /* Prototypes for local functions */ | |
a14ed312 | 56 | static int init_hidden_window (void); |
6027a0b8 | 57 | |
a14ed312 | 58 | static LRESULT CALLBACK v850ice_wndproc (HWND, UINT, WPARAM, LPARAM); |
6027a0b8 | 59 | |
a14ed312 | 60 | static void v850ice_files_info (struct target_ops *ignore); |
6027a0b8 | 61 | |
a14ed312 KB |
62 | static int v850ice_xfer_memory (CORE_ADDR memaddr, char *myaddr, |
63 | int len, int should_write, | |
64 | struct target_ops *target); | |
6027a0b8 | 65 | |
a14ed312 | 66 | static void v850ice_prepare_to_store (void); |
6027a0b8 | 67 | |
a14ed312 | 68 | static void v850ice_fetch_registers (int regno); |
6027a0b8 | 69 | |
39f77062 KB |
70 | static void v850ice_resume (ptid_t ptid, int step, |
71 | enum target_signal siggnal); | |
6027a0b8 | 72 | |
a14ed312 | 73 | static void v850ice_open (char *name, int from_tty); |
6027a0b8 | 74 | |
a14ed312 | 75 | static void v850ice_close (int quitting); |
6027a0b8 | 76 | |
a14ed312 | 77 | static void v850ice_stop (void); |
6027a0b8 | 78 | |
a14ed312 | 79 | static void v850ice_store_registers (int regno); |
6027a0b8 | 80 | |
a14ed312 | 81 | static void v850ice_mourn (void); |
6027a0b8 | 82 | |
39f77062 KB |
83 | static ptid_t v850ice_wait (ptid_t ptid, |
84 | struct target_waitstatus *status); | |
6027a0b8 | 85 | |
a14ed312 | 86 | static void v850ice_kill (void); |
6027a0b8 | 87 | |
a14ed312 | 88 | static void v850ice_detach (char *args, int from_tty); |
6027a0b8 | 89 | |
a14ed312 | 90 | static int v850ice_insert_breakpoint (CORE_ADDR, char *); |
6027a0b8 | 91 | |
a14ed312 | 92 | static int v850ice_remove_breakpoint (CORE_ADDR, char *); |
6027a0b8 | 93 | |
a14ed312 | 94 | static void v850ice_command (char *, int); |
6027a0b8 | 95 | |
a14ed312 | 96 | static int ice_disassemble (unsigned long, int, char *); |
6027a0b8 | 97 | |
a14ed312 | 98 | static int ice_lookup_addr (unsigned long *, char *, char *); |
6027a0b8 | 99 | |
a14ed312 | 100 | static int ice_lookup_symbol (unsigned long, char *); |
6027a0b8 | 101 | |
a14ed312 | 102 | static void ice_SimulateDisassemble (char *, int); |
6027a0b8 | 103 | |
a14ed312 | 104 | static void ice_SimulateAddrLookup (char *, int); |
6027a0b8 | 105 | |
a14ed312 | 106 | static void ice_Simulate_SymLookup (char *, int); |
6027a0b8 | 107 | |
d9fcf2fb | 108 | static void ice_fputs (const char *, struct ui_file *); |
6027a0b8 | 109 | |
a14ed312 | 110 | static int ice_file (char *); |
6027a0b8 | 111 | |
a14ed312 | 112 | static int ice_cont (char *); |
6027a0b8 | 113 | |
a14ed312 | 114 | static int ice_stepi (char *); |
6027a0b8 | 115 | |
a14ed312 | 116 | static int ice_nexti (char *); |
6027a0b8 | 117 | |
a14ed312 | 118 | static void togdb_force_update (void); |
6027a0b8 | 119 | |
a14ed312 | 120 | static void view_source (CORE_ADDR); |
3fc11d3e | 121 | |
ac1d1083 | 122 | static void do_gdb (char *, char *, void (*func) (char *, int), int); |
6027a0b8 JM |
123 | |
124 | ||
125 | /* Globals */ | |
c5aa993b | 126 | static HWND hidden_hwnd; /* HWND for messages */ |
6027a0b8 | 127 | |
ac1d1083 | 128 | long (__stdcall * ExeAppReq) (char *, long, char *, struct MessageIO *); |
6027a0b8 | 129 | |
ac1d1083 | 130 | long (__stdcall * RegisterClient) (HWND); |
6027a0b8 | 131 | |
ac1d1083 | 132 | long (__stdcall * UnregisterClient) (void); |
6027a0b8 | 133 | |
3fc11d3e | 134 | extern Tcl_Interp *gdbtk_interp; |
6027a0b8 JM |
135 | |
136 | /* Globals local to this file only */ | |
c5aa993b | 137 | static int ice_open = 0; /* Is ICE open? */ |
6027a0b8 | 138 | |
c5aa993b | 139 | static char *v850_CB_Result; /* special char array for saving 'callback' results */ |
6027a0b8 | 140 | |
c5aa993b | 141 | static int SimulateCallback; /* simulate a callback event */ |
6027a0b8 | 142 | |
c5aa993b JM |
143 | #define MAX_BLOCK_SIZE 64*1024 /* Cannot transfer memory in blocks bigger |
144 | than this */ | |
6027a0b8 | 145 | /* MDI/ICE Message IDs */ |
c5aa993b JM |
146 | #define GSINGLESTEP 0x200 /* single-step target */ |
147 | #define GRESUME 0x201 /* resume target */ | |
148 | #define GREADREG 0x202 /* read a register */ | |
149 | #define GWRITEREG 0x203 /* write a register */ | |
150 | #define GWRITEBLOCK 0x204 /* write a block of memory */ | |
151 | #define GREADBLOCK 0x205 /* read a block of memory */ | |
152 | #define GSETBREAK 0x206 /* set a breakpoint */ | |
153 | #define GREMOVEBREAK 0x207 /* remove a breakpoint */ | |
154 | #define GHALT 0x208 /* ??? */ | |
155 | #define GCHECKSTATUS 0x209 /* check status of ICE */ | |
156 | #define GMDIREPLY 0x210 /* Reply for previous query - NOT USED */ | |
157 | #define GDOWNLOAD 0x211 /* something for MDI */ | |
158 | #define GCOMMAND 0x212 /* execute command in ice */ | |
159 | #define GLOADFILENAME 0x213 /* retrieve load filename */ | |
160 | #define GWRITEMEM 0x214 /* write word, half-word, or byte */ | |
6027a0b8 JM |
161 | |
162 | /* GCHECKSTATUS return codes: */ | |
163 | #define ICE_Idle 0x00 | |
c5aa993b JM |
164 | #define ICE_Breakpoint 0x01 /* hit a breakpoint */ |
165 | #define ICE_Stepped 0x02 /* have stepped */ | |
166 | #define ICE_Exception 0x03 /* have exception */ | |
167 | #define ICE_Halted 0x04 /* hit a user halt */ | |
168 | #define ICE_Exited 0x05 /* called exit */ | |
169 | #define ICE_Terminated 0x06 /* user terminated */ | |
6027a0b8 JM |
170 | #define ICE_Running 0x07 |
171 | #define ICE_Unknown 0x99 | |
172 | ||
173 | /* Windows messages */ | |
174 | #define WM_STATE_CHANGE WM_USER+101 | |
175 | #define WM_SYM_TO_ADDR WM_USER+102 | |
176 | #define WM_ADDR_TO_SYM WM_USER+103 | |
177 | #define WM_DISASSEMBLY WM_USER+104 | |
178 | #define WM_SOURCE WM_USER+105 | |
179 | ||
180 | /* STATE_CHANGE codes */ | |
c5aa993b JM |
181 | #define STATE_CHANGE_REGS 1 /* Register(s) changed */ |
182 | #define STATE_CHANGE_LOAD 2 /* HW reset */ | |
183 | #define STATE_CHANGE_RESET 3 /* Load new file */ | |
184 | #define STATE_CHANGE_CONT 4 /* Run target */ | |
185 | #define STATE_CHANGE_STOP 5 /* Stop target */ | |
186 | #define STATE_CHANGE_STEPI 6 /* Stepi target */ | |
187 | #define STATE_CHANGE_NEXTI 7 /* Nexti target */ | |
6027a0b8 JM |
188 | |
189 | static struct target_ops v850ice_ops; /* Forward decl */ | |
190 | ||
191 | /* This function creates a hidden window */ | |
192 | static int | |
fba45db2 | 193 | init_hidden_window (void) |
6027a0b8 JM |
194 | { |
195 | WNDCLASS class; | |
196 | ||
197 | if (hidden_hwnd != NULL) | |
198 | return 1; | |
199 | ||
200 | class.style = 0; | |
201 | class.cbClsExtra = 0; | |
202 | class.cbWndExtra = 0; | |
203 | class.hInstance = GetModuleHandle (0); | |
204 | class.hbrBackground = NULL; | |
205 | class.lpszMenuName = NULL; | |
206 | class.lpszClassName = "gdb_v850ice"; | |
207 | class.lpfnWndProc = v850ice_wndproc; | |
208 | class.hIcon = NULL; | |
209 | class.hCursor = NULL; | |
210 | ||
c5aa993b | 211 | if (!RegisterClass (&class)) |
6027a0b8 JM |
212 | return 0; |
213 | ||
214 | hidden_hwnd = CreateWindow ("gdb_v850ice", "gdb_v850ice", WS_TILED, | |
c5aa993b JM |
215 | 0, 0, 0, 0, NULL, NULL, class.hInstance, |
216 | NULL); | |
6027a0b8 JM |
217 | if (hidden_hwnd == NULL) |
218 | { | |
219 | char buf[200]; | |
220 | DWORD err; | |
221 | ||
222 | err = GetLastError (); | |
223 | FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM, NULL, err, | |
c5aa993b | 224 | 0, buf, 200, NULL); |
6027a0b8 JM |
225 | printf_unfiltered ("Could not create window: %s", buf); |
226 | return 0; | |
227 | } | |
228 | ||
229 | return 1; | |
230 | } | |
231 | ||
232 | /* | |
233 | This function is installed as the message handler for the hidden window | |
234 | which QBox will use to communicate with gdb. It recognize and acts | |
235 | on the following messages: | |
236 | ||
237 | WM_SYM_TO_ADDR \ | |
238 | WM_ADDR_TO_SYM | Not implemented at NEC's request | |
239 | WM_DISASSEMBLY / | |
240 | WM_STATE_CHANGE - tells us that a state change has occured in the ICE | |
c5aa993b | 241 | */ |
6027a0b8 | 242 | static LRESULT CALLBACK |
fba45db2 | 243 | v850ice_wndproc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) |
6027a0b8 JM |
244 | { |
245 | LRESULT result = FALSE; | |
246 | ||
247 | switch (message) | |
248 | { | |
249 | case WM_SYM_TO_ADDR: | |
250 | MessageBox (0, "Symbol resolution\nNot implemented", "GDB", MB_OK); | |
251 | break; | |
252 | case WM_ADDR_TO_SYM: | |
253 | MessageBox (0, "Address resolution\nNot implemented", "GDB", MB_OK); | |
254 | break; | |
255 | case WM_SOURCE: | |
3fc11d3e | 256 | view_source ((CORE_ADDR) lParam); |
6027a0b8 JM |
257 | break; |
258 | case WM_STATE_CHANGE: | |
259 | switch (wParam) | |
c5aa993b JM |
260 | { |
261 | case STATE_CHANGE_LOAD: | |
262 | { | |
263 | struct MessageIO iob; | |
264 | char buf[128]; | |
265 | ||
266 | iob.buf = buf; | |
267 | iob.size = 128; | |
268 | ||
269 | /* Load in a new file... Need filename */ | |
270 | ExeAppReq ("GDB", GLOADFILENAME, NULL, &iob); | |
271 | if (!catch_errors ((catch_errors_ftype *) ice_file, iob.buf, "", RETURN_MASK_ALL)) | |
272 | printf_unfiltered ("load errored\n"); | |
273 | } | |
274 | break; | |
275 | case STATE_CHANGE_RESET: | |
276 | registers_changed (); | |
277 | flush_cached_frames (); | |
278 | togdb_force_update (); | |
279 | result = TRUE; | |
280 | break; | |
281 | case STATE_CHANGE_REGS: | |
282 | registers_changed (); | |
283 | togdb_force_update (); | |
284 | result = TRUE; | |
285 | break; | |
286 | case STATE_CHANGE_CONT: | |
287 | if (!catch_errors ((catch_errors_ftype *) ice_cont, NULL, "", RETURN_MASK_ALL)) | |
288 | printf_unfiltered ("continue errored\n"); | |
289 | result = TRUE; | |
290 | break; | |
291 | case STATE_CHANGE_STEPI: | |
4efb68b1 | 292 | if (!catch_errors ((catch_errors_ftype *) ice_stepi, (int) lParam, "", |
c5aa993b JM |
293 | RETURN_MASK_ALL)) |
294 | printf_unfiltered ("stepi errored\n"); | |
295 | result = TRUE; | |
296 | break; | |
297 | case STATE_CHANGE_NEXTI: | |
4efb68b1 | 298 | if (!catch_errors ((catch_errors_ftype *) ice_nexti, (int) lParam, "", |
c5aa993b JM |
299 | RETURN_MASK_ALL)) |
300 | printf_unfiltered ("nexti errored\n"); | |
301 | result = TRUE; | |
302 | break; | |
303 | } | |
6027a0b8 JM |
304 | } |
305 | ||
306 | if (result == FALSE) | |
307 | return DefWindowProc (hwnd, message, wParam, lParam); | |
308 | ||
309 | return FALSE; | |
310 | } | |
311 | ||
312 | /* Code for opening a connection to the ICE. */ | |
313 | ||
314 | static void | |
fba45db2 | 315 | v850ice_open (char *name, int from_tty) |
6027a0b8 JM |
316 | { |
317 | HINSTANCE handle; | |
318 | ||
319 | if (name) | |
320 | error ("Too many arguments."); | |
321 | ||
322 | target_preopen (from_tty); | |
323 | ||
324 | unpush_target (&v850ice_ops); | |
325 | ||
326 | if (from_tty) | |
327 | puts_filtered ("V850ice debugging\n"); | |
328 | ||
329 | push_target (&v850ice_ops); /* Switch to using v850ice target now */ | |
330 | ||
331 | target_terminal_init (); | |
332 | ||
333 | /* Initialize everything necessary to facilitate communication | |
334 | between QBox, gdb, and the DLLs which control the ICE */ | |
335 | if (ExeAppReq == NULL) | |
336 | { | |
337 | handle = LoadLibrary ("necmsg.dll"); | |
338 | if (handle == NULL) | |
c5aa993b | 339 | error ("Cannot load necmsg.dll"); |
6027a0b8 | 340 | |
ac1d1083 | 341 | ExeAppReq = (long (*) (char *, long, char *, struct MessageIO *)) |
c5aa993b | 342 | GetProcAddress (handle, "ExeAppReq"); |
ac1d1083 | 343 | RegisterClient = (long (*) (HWND)) |
c5aa993b | 344 | GetProcAddress (handle, "RegisterClient"); |
ac1d1083 | 345 | UnregisterClient = (long (*) (void)) |
c5aa993b | 346 | GetProcAddress (handle, "UnregisterClient"); |
6027a0b8 JM |
347 | |
348 | if (ExeAppReq == NULL || RegisterClient == NULL || UnregisterClient == NULL) | |
c5aa993b | 349 | error ("Could not find requisite functions in necmsg.dll."); |
6027a0b8 JM |
350 | |
351 | if (!init_hidden_window ()) | |
c5aa993b | 352 | error ("could not initialize message handling"); |
6027a0b8 JM |
353 | } |
354 | ||
355 | /* Tell the DLL we are here */ | |
356 | RegisterClient (hidden_hwnd); | |
357 | ||
358 | ice_open = 1; | |
359 | ||
360 | /* Without this, some commands which require an active target (such as kill) | |
361 | won't work. This variable serves (at least) double duty as both the pid | |
362 | of the target process (if it has such), and as a flag indicating that a | |
363 | target is active. These functions should be split out into seperate | |
364 | variables, especially since GDB will someday have a notion of debugging | |
365 | several processes. */ | |
39f77062 | 366 | inferior_ptid = pid_to_ptid (42000); |
6027a0b8 JM |
367 | |
368 | start_remote (); | |
369 | return; | |
370 | } | |
371 | ||
372 | /* Clean up connection to a remote debugger. */ | |
373 | ||
6027a0b8 | 374 | static void |
fba45db2 | 375 | v850ice_close (int quitting) |
6027a0b8 JM |
376 | { |
377 | if (ice_open) | |
378 | { | |
379 | UnregisterClient (); | |
380 | ice_open = 0; | |
39f77062 | 381 | inferior_ptid = null_ptid; |
6027a0b8 JM |
382 | } |
383 | } | |
384 | ||
385 | /* Stop the process on the ice. */ | |
386 | static void | |
fba45db2 | 387 | v850ice_stop (void) |
6027a0b8 JM |
388 | { |
389 | /* This is silly, but it works... */ | |
390 | v850ice_command ("stop", 0); | |
391 | } | |
392 | ||
393 | static void | |
fba45db2 | 394 | v850ice_detach (char *args, int from_tty) |
6027a0b8 JM |
395 | { |
396 | if (args) | |
397 | error ("Argument given to \"detach\" when remotely debugging."); | |
398 | ||
399 | pop_target (); | |
400 | if (from_tty) | |
401 | puts_filtered ("Ending v850ice debugging.\n"); | |
402 | } | |
403 | ||
404 | /* Tell the remote machine to resume. */ | |
405 | ||
406 | static void | |
39f77062 | 407 | v850ice_resume (ptid_t ptid, int step, enum target_signal siggnal) |
6027a0b8 | 408 | { |
c5aa993b JM |
409 | long retval; |
410 | char buf[256]; | |
411 | struct MessageIO iob; | |
6027a0b8 JM |
412 | |
413 | iob.size = 0; | |
c5aa993b | 414 | iob.buf = buf; |
6027a0b8 JM |
415 | |
416 | if (step) | |
417 | retval = ExeAppReq ("GDB", GSINGLESTEP, "step", &iob); | |
418 | else | |
419 | retval = ExeAppReq ("GDB", GRESUME, "run", &iob); | |
420 | ||
421 | if (retval) | |
422 | error ("ExeAppReq (step = %d) returned %d", step, retval); | |
423 | } | |
424 | ||
425 | /* Wait until the remote machine stops, then return, | |
426 | storing status in STATUS just as `wait' would. | |
427 | Returns "pid" (though it's not clear what, if anything, that | |
428 | means in the case of this target). */ | |
429 | ||
39f77062 KB |
430 | static ptid_t |
431 | v850ice_wait (ptid_t ptid, struct target_waitstatus *status) | |
6027a0b8 JM |
432 | { |
433 | long v850_status; | |
434 | char buf[256]; | |
c5aa993b | 435 | struct MessageIO iob; |
6027a0b8 JM |
436 | int done = 0; |
437 | int count = 0; | |
438 | ||
439 | iob.size = 0; | |
c5aa993b JM |
440 | iob.buf = buf; |
441 | ||
6027a0b8 JM |
442 | do |
443 | { | |
444 | if (count++ % 100000) | |
c5aa993b JM |
445 | { |
446 | ui_loop_hook (0); | |
6027a0b8 | 447 | count = 0; |
c5aa993b | 448 | } |
6027a0b8 JM |
449 | |
450 | v850_status = ExeAppReq ("GDB", GCHECKSTATUS, NULL, &iob); | |
451 | ||
452 | switch (v850_status) | |
c5aa993b JM |
453 | { |
454 | case ICE_Idle: | |
455 | case ICE_Breakpoint: | |
456 | case ICE_Stepped: | |
457 | case ICE_Halted: | |
458 | status->kind = TARGET_WAITKIND_STOPPED; | |
459 | status->value.sig = TARGET_SIGNAL_TRAP; | |
460 | done = 1; | |
461 | break; | |
462 | case ICE_Exception: | |
463 | status->kind = TARGET_WAITKIND_SIGNALLED; | |
464 | status->value.sig = TARGET_SIGNAL_SEGV; | |
465 | done = 1; | |
466 | break; | |
467 | case ICE_Exited: | |
468 | status->kind = TARGET_WAITKIND_EXITED; | |
469 | status->value.integer = 0; | |
470 | done = 1; | |
471 | break; | |
472 | case ICE_Terminated: | |
473 | status->kind = TARGET_WAITKIND_SIGNALLED; | |
474 | status->value.sig = TARGET_SIGNAL_KILL; | |
475 | done = 1; | |
476 | break; | |
477 | default: | |
478 | break; | |
479 | } | |
6027a0b8 JM |
480 | } |
481 | while (!done); | |
c5aa993b | 482 | |
39f77062 | 483 | return inferior_ptid; |
6027a0b8 JM |
484 | } |
485 | ||
486 | static int | |
fba45db2 | 487 | convert_register (int regno, char *buf) |
6027a0b8 JM |
488 | { |
489 | if (regno <= 31) | |
490 | sprintf (buf, "r%d", regno); | |
491 | else if (REGISTER_NAME (regno)[0] == 's' | |
492 | && REGISTER_NAME (regno)[1] == 'r') | |
493 | return 0; | |
494 | else | |
495 | sprintf (buf, "%s", REGISTER_NAME (regno)); | |
496 | ||
497 | return 1; | |
498 | } | |
499 | ||
500 | /* Read the remote registers into the block REGS. */ | |
501 | /* Note that the ICE returns register contents as ascii hex strings. We have | |
502 | to convert that to an unsigned long, and then call store_unsigned_integer to | |
503 | convert it to target byte-order if necessary. */ | |
504 | ||
505 | static void | |
fba45db2 | 506 | v850ice_fetch_registers (int regno) |
6027a0b8 JM |
507 | { |
508 | long retval; | |
509 | char cmd[100]; | |
510 | char val[100]; | |
511 | struct MessageIO iob; | |
512 | unsigned long regval; | |
513 | char *p; | |
514 | ||
515 | if (regno == -1) | |
516 | { | |
517 | for (regno = 0; regno < NUM_REGS; regno++) | |
c5aa993b | 518 | v850ice_fetch_registers (regno); |
6027a0b8 JM |
519 | return; |
520 | } | |
521 | ||
522 | strcpy (cmd, "reg "); | |
523 | if (!convert_register (regno, &cmd[4])) | |
524 | return; | |
525 | ||
526 | iob.size = sizeof val; | |
527 | iob.buf = val; | |
528 | retval = ExeAppReq ("GDB", GREADREG, cmd, &iob); | |
529 | if (retval) | |
530 | error ("1: ExeAppReq returned %d: cmd = %s", retval, cmd); | |
531 | ||
532 | regval = strtoul (val, NULL, 16); | |
533 | if (regval == 0 && p == val) | |
534 | error ("v850ice_fetch_registers (%d): bad value from ICE: %s.", | |
c5aa993b | 535 | regno, val); |
6027a0b8 | 536 | |
12c266ea | 537 | store_unsigned_integer (val, DEPRECATED_REGISTER_RAW_SIZE (regno), regval); |
6027a0b8 JM |
538 | supply_register (regno, val); |
539 | } | |
540 | ||
541 | /* Store register REGNO, or all registers if REGNO == -1, from the contents | |
542 | of REGISTERS. */ | |
543 | ||
544 | static void | |
fba45db2 | 545 | v850ice_store_registers (int regno) |
6027a0b8 JM |
546 | { |
547 | long retval; | |
548 | char cmd[100]; | |
549 | unsigned long regval; | |
550 | char buf[256]; | |
551 | struct MessageIO iob; | |
552 | iob.size = 0; | |
553 | iob.buf = buf; | |
554 | ||
555 | if (regno == -1) | |
556 | { | |
557 | for (regno = 0; regno < NUM_REGS; regno++) | |
558 | v850ice_store_registers (regno); | |
559 | return; | |
560 | } | |
561 | ||
62700349 | 562 | regval = extract_unsigned_integer (&deprecated_registers[DEPRECATED_REGISTER_BYTE (regno)], |
12c266ea | 563 | DEPRECATED_REGISTER_RAW_SIZE (regno)); |
6027a0b8 JM |
564 | strcpy (cmd, "reg "); |
565 | if (!convert_register (regno, &cmd[4])) | |
566 | return; | |
567 | sprintf (cmd + strlen (cmd), "=0x%x", regval); | |
568 | ||
569 | retval = ExeAppReq ("GDB", GWRITEREG, cmd, &iob); | |
570 | if (retval) | |
571 | error ("2: ExeAppReq returned %d: cmd = %s", retval, cmd); | |
572 | } | |
573 | ||
574 | /* Prepare to store registers. Nothing to do here, since the ICE can write one | |
575 | register at a time. */ | |
576 | ||
c5aa993b | 577 | static void |
fba45db2 | 578 | v850ice_prepare_to_store (void) |
6027a0b8 JM |
579 | { |
580 | } | |
581 | ||
582 | /* Read or write LEN bytes from inferior memory at MEMADDR, transferring | |
583 | to or from debugger address MYADDR. Write to inferior if SHOULD_WRITE is | |
5af20574 KB |
584 | nonzero. TARGET is unused. Returns length of data written or read; |
585 | 0 for error. | |
6027a0b8 JM |
586 | |
587 | We can only read/write MAX_BLOCK_SIZE bytes at a time, though, or the DLL | |
5af20574 | 588 | dies. */ |
6027a0b8 | 589 | static int |
5af20574 KB |
590 | v850ice_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, |
591 | int should_write, struct target_ops *target) | |
6027a0b8 JM |
592 | { |
593 | long retval; | |
594 | char cmd[100]; | |
595 | struct MessageIO iob; | |
596 | int sent; | |
597 | ||
598 | if (should_write) | |
599 | { | |
600 | if (len == 4 || len == 2 || len == 1) | |
c5aa993b JM |
601 | { |
602 | long value = 0; | |
603 | char buf[256]; | |
604 | char c; | |
605 | ||
606 | iob.size = 0; | |
607 | iob.buf = buf; | |
608 | ||
609 | sent = 0; | |
610 | switch (len) | |
611 | { | |
612 | case 4: | |
613 | c = 'w'; | |
614 | value |= (long) ((myaddr[3] << 24) & 0xff000000); | |
615 | value |= (long) ((myaddr[2] << 16) & 0x00ff0000); | |
616 | value |= (long) ((myaddr[1] << 8) & 0x0000ff00); | |
617 | value |= (long) (myaddr[0] & 0x000000ff); | |
618 | break; | |
619 | case 2: | |
620 | c = 'h'; | |
621 | value |= (long) ((myaddr[1] << 8) & 0xff00); | |
622 | value |= (long) (myaddr[0] & 0x00ff); | |
6027a0b8 | 623 | break; |
c5aa993b JM |
624 | case 1: |
625 | c = 'b'; | |
626 | value |= (long) (myaddr[0] & 0xff); | |
627 | break; | |
628 | } | |
629 | ||
630 | sprintf (cmd, "memory %c c 0x%x=0x%x", c, (int) memaddr, value); | |
631 | retval = ExeAppReq ("GDB", GWRITEMEM, cmd, &iob); | |
632 | if (retval == 0) | |
633 | sent = len; | |
634 | } | |
635 | else | |
636 | { | |
637 | sent = 0; | |
638 | do | |
639 | { | |
640 | iob.size = len > MAX_BLOCK_SIZE ? MAX_BLOCK_SIZE : len; | |
641 | iob.buf = myaddr; | |
642 | sprintf (cmd, "memory b c 0x%x=0x00 l=%d", (int) memaddr, iob.size); | |
643 | retval = ExeAppReq ("GDB", GWRITEBLOCK, cmd, &iob); | |
644 | if (retval != 0) | |
645 | break; | |
646 | len -= iob.size; | |
647 | memaddr += iob.size; | |
648 | myaddr += iob.size; | |
649 | sent += iob.size; | |
650 | } | |
651 | while (len > 0); | |
652 | } | |
6027a0b8 JM |
653 | } |
654 | else | |
655 | { | |
656 | unsigned char *tmp; | |
657 | unsigned char *t; | |
658 | int i; | |
c5aa993b | 659 | |
6027a0b8 JM |
660 | tmp = alloca (len + 100); |
661 | t = tmp; | |
662 | memset (tmp + len, 0xff, 100); | |
663 | ||
664 | sent = 0; | |
665 | do | |
c5aa993b JM |
666 | { |
667 | iob.size = len > MAX_BLOCK_SIZE ? MAX_BLOCK_SIZE : len; | |
668 | iob.buf = tmp; | |
669 | sprintf (cmd, "memory b 0x%x l=%d", (int) memaddr, iob.size); | |
670 | retval = ExeAppReq ("GDB", GREADBLOCK, cmd, &iob); | |
671 | if (retval != 0) | |
672 | break; | |
673 | len -= iob.size; | |
674 | memaddr += iob.size; | |
675 | sent += iob.size; | |
676 | tmp += iob.size; | |
677 | } | |
6027a0b8 JM |
678 | while (len > 0); |
679 | ||
680 | if (retval == 0) | |
c5aa993b JM |
681 | { |
682 | for (i = 0; i < 100; i++) | |
683 | { | |
684 | if (t[sent + i] != 0xff) | |
685 | { | |
686 | warning ("GREADBLOCK trashed bytes after transfer area."); | |
687 | break; | |
688 | } | |
689 | } | |
690 | memcpy (myaddr, t, sent); | |
691 | } | |
6027a0b8 | 692 | } |
c5aa993b | 693 | |
6027a0b8 JM |
694 | if (retval != 0) |
695 | error ("3: ExeAppReq returned %d: cmd = %s", retval, cmd); | |
c5aa993b | 696 | |
6027a0b8 JM |
697 | return sent; |
698 | } | |
699 | ||
700 | static void | |
fba45db2 | 701 | v850ice_files_info (struct target_ops *ignore) |
6027a0b8 JM |
702 | { |
703 | puts_filtered ("Debugging a target via the NEC V850 ICE.\n"); | |
704 | } | |
705 | ||
706 | static int | |
fba45db2 | 707 | v850ice_insert_breakpoint (CORE_ADDR addr, char *contents_cache) |
6027a0b8 JM |
708 | { |
709 | long retval; | |
710 | char cmd[100]; | |
711 | char buf[256]; | |
712 | struct MessageIO iob; | |
713 | ||
714 | iob.size = 0; | |
c5aa993b | 715 | iob.buf = buf; |
6027a0b8 JM |
716 | sprintf (cmd, "%d, ", addr); |
717 | ||
718 | retval = ExeAppReq ("GDB", GSETBREAK, cmd, &iob); | |
719 | if (retval) | |
720 | error ("ExeAppReq (GSETBREAK) returned %d: cmd = %s", retval, cmd); | |
721 | ||
722 | return 0; | |
723 | } | |
724 | ||
725 | static int | |
fba45db2 | 726 | v850ice_remove_breakpoint (CORE_ADDR addr, char *contents_cache) |
6027a0b8 JM |
727 | { |
728 | long retval; | |
729 | char cmd[100]; | |
730 | char buf[256]; | |
731 | struct MessageIO iob; | |
732 | ||
733 | iob.size = 0; | |
c5aa993b | 734 | iob.buf = buf; |
6027a0b8 JM |
735 | |
736 | sprintf (cmd, "%d, ", addr); | |
737 | ||
738 | retval = ExeAppReq ("GDB", GREMOVEBREAK, cmd, &iob); | |
739 | if (retval) | |
740 | error ("ExeAppReq (GREMOVEBREAK) returned %d: cmd = %s", retval, cmd); | |
741 | ||
742 | return 0; | |
743 | } | |
744 | ||
745 | static void | |
fba45db2 | 746 | v850ice_kill (void) |
6027a0b8 JM |
747 | { |
748 | target_mourn_inferior (); | |
39f77062 | 749 | inferior_ptid = null_ptid; |
6027a0b8 JM |
750 | } |
751 | ||
752 | static void | |
fba45db2 | 753 | v850ice_mourn (void) |
6027a0b8 JM |
754 | { |
755 | } | |
756 | ||
757 | static void | |
fba45db2 | 758 | v850ice_load (char *filename, int from_tty) |
6027a0b8 JM |
759 | { |
760 | struct MessageIO iob; | |
761 | char buf[256]; | |
762 | ||
763 | iob.size = 0; | |
c5aa993b JM |
764 | iob.buf = buf; |
765 | generic_load (filename, from_tty); | |
6027a0b8 JM |
766 | ExeAppReq ("GDB", GDOWNLOAD, filename, &iob); |
767 | } | |
768 | ||
769 | static int | |
fba45db2 | 770 | ice_file (char *arg) |
6027a0b8 JM |
771 | { |
772 | char *s; | |
c5aa993b | 773 | |
6027a0b8 JM |
774 | target_detach (NULL, 0); |
775 | pop_target (); | |
776 | ||
777 | printf_unfiltered ("\n"); | |
778 | ||
779 | s = arg; | |
780 | while (*s != '\0') | |
781 | { | |
782 | if (*s == '\\') | |
c5aa993b | 783 | *s = '/'; |
6027a0b8 JM |
784 | s++; |
785 | } | |
786 | ||
787 | /* Safegaurd against confusing the breakpoint routines... */ | |
c5aa993b | 788 | delete_command (NULL, 0); |
6027a0b8 JM |
789 | |
790 | /* Must supress from_tty, otherwise we could start asking if the | |
791 | user really wants to load a new symbol table, etc... */ | |
792 | printf_unfiltered ("Reading symbols from %s...", arg); | |
1adeb98a FN |
793 | exec_open (arg, 0); |
794 | symbol_file_add_main (arg, 0); | |
6027a0b8 JM |
795 | printf_unfiltered ("done\n"); |
796 | ||
1adeb98a | 797 | /* exec_open will kill our target, so reinstall the ICE as |
6027a0b8 JM |
798 | the target. */ |
799 | v850ice_open (NULL, 0); | |
800 | ||
801 | togdb_force_update (); | |
802 | return 1; | |
803 | } | |
804 | ||
805 | static int | |
fba45db2 | 806 | ice_cont (char *c) |
6027a0b8 JM |
807 | { |
808 | printf_filtered ("continue (ice)\n"); | |
809 | ReplyMessage ((LRESULT) 1); | |
810 | ||
3fc11d3e JM |
811 | if (gdbtk_interp == NULL) |
812 | { | |
6027a0b8 | 813 | continue_command (NULL, 1); |
3fc11d3e JM |
814 | } |
815 | else | |
816 | Tcl_Eval (gdbtk_interp, "gdb_immediate continue"); | |
6027a0b8 JM |
817 | |
818 | return 1; | |
819 | } | |
820 | ||
821 | static void | |
5af20574 | 822 | do_gdb (char *cmd, char *str, void (*func) (char *, int), int count) |
6027a0b8 JM |
823 | { |
824 | ReplyMessage ((LRESULT) 1); | |
825 | ||
826 | while (count--) | |
827 | { | |
828 | printf_unfiltered (str); | |
829 | ||
3fc11d3e JM |
830 | if (gdbtk_interp == NULL) |
831 | { | |
6027a0b8 | 832 | func (NULL, 0); |
3fc11d3e JM |
833 | } |
834 | else | |
835 | Tcl_Eval (gdbtk_interp, cmd); | |
6027a0b8 JM |
836 | } |
837 | } | |
838 | ||
839 | ||
840 | static int | |
fba45db2 | 841 | ice_stepi (char *c) |
6027a0b8 JM |
842 | { |
843 | int count = (int) c; | |
844 | ||
845 | do_gdb ("gdb_immediate stepi", "stepi (ice)\n", stepi_command, count); | |
846 | return 1; | |
847 | } | |
848 | ||
849 | static int | |
fba45db2 | 850 | ice_nexti (char *c) |
6027a0b8 JM |
851 | { |
852 | int count = (int) c; | |
853 | ||
854 | do_gdb ("gdb_immediate nexti", "nexti (ice)\n", nexti_command, count); | |
855 | return 1; | |
856 | } | |
857 | ||
858 | static void | |
fba45db2 | 859 | v850ice_command (char *arg, int from_tty) |
6027a0b8 JM |
860 | { |
861 | struct MessageIO iob; | |
862 | char buf[256]; | |
863 | ||
864 | iob.buf = buf; | |
865 | iob.size = 0; | |
866 | ExeAppReq ("GDB", GCOMMAND, arg, &iob); | |
867 | } | |
868 | ||
869 | static void | |
870 | togdb_force_update (void) | |
871 | { | |
3fc11d3e JM |
872 | if (gdbtk_interp != NULL) |
873 | Tcl_Eval (gdbtk_interp, "gdbtk_update"); | |
6027a0b8 JM |
874 | } |
875 | ||
3fc11d3e | 876 | static void |
fba45db2 | 877 | view_source (CORE_ADDR addr) |
3fc11d3e JM |
878 | { |
879 | char c[256]; | |
880 | ||
881 | if (gdbtk_interp != NULL) | |
882 | { | |
883 | sprintf (c, "catch {set src [lindex [ManagedWin::find SrcWin] 0]\n$src location BROWSE [gdb_loc *0x%x]}", addr); | |
884 | Tcl_Eval (gdbtk_interp, c); | |
885 | } | |
886 | } | |
6027a0b8 JM |
887 | |
888 | /* Define the target subroutine names */ | |
889 | ||
c5aa993b JM |
890 | static void |
891 | init_850ice_ops (void) | |
6027a0b8 | 892 | { |
c5aa993b JM |
893 | v850ice_ops.to_shortname = "ice"; |
894 | v850ice_ops.to_longname = "NEC V850 ICE interface"; | |
895 | v850ice_ops.to_doc = "Debug a system controlled by a NEC 850 ICE."; | |
896 | v850ice_ops.to_open = v850ice_open; | |
897 | v850ice_ops.to_close = v850ice_close; | |
c5aa993b | 898 | v850ice_ops.to_detach = v850ice_detach; |
c5aa993b JM |
899 | v850ice_ops.to_resume = v850ice_resume; |
900 | v850ice_ops.to_wait = v850ice_wait; | |
c5aa993b JM |
901 | v850ice_ops.to_fetch_registers = v850ice_fetch_registers; |
902 | v850ice_ops.to_store_registers = v850ice_store_registers; | |
903 | v850ice_ops.to_prepare_to_store = v850ice_prepare_to_store; | |
904 | v850ice_ops.to_xfer_memory = v850ice_xfer_memory; | |
905 | v850ice_ops.to_files_info = v850ice_files_info; | |
906 | v850ice_ops.to_insert_breakpoint = v850ice_insert_breakpoint; | |
907 | v850ice_ops.to_remove_breakpoint = v850ice_remove_breakpoint; | |
c5aa993b JM |
908 | v850ice_ops.to_kill = v850ice_kill; |
909 | v850ice_ops.to_load = v850ice_load; | |
c5aa993b | 910 | v850ice_ops.to_mourn_inferior = v850ice_mourn; |
c5aa993b | 911 | v850ice_ops.to_stop = v850ice_stop; |
c5aa993b | 912 | v850ice_ops.to_stratum = process_stratum; |
c5aa993b JM |
913 | v850ice_ops.to_has_all_memory = 1; |
914 | v850ice_ops.to_has_memory = 1; | |
915 | v850ice_ops.to_has_stack = 1; | |
916 | v850ice_ops.to_has_registers = 1; | |
917 | v850ice_ops.to_has_execution = 1; | |
c5aa993b | 918 | v850ice_ops.to_magic = OPS_MAGIC; |
6027a0b8 JM |
919 | } |
920 | ||
921 | void | |
fba45db2 | 922 | _initialize_v850ice (void) |
6027a0b8 JM |
923 | { |
924 | init_850ice_ops (); | |
925 | add_target (&v850ice_ops); | |
926 | ||
927 | add_com ("ice", class_obscure, v850ice_command, | |
c5aa993b | 928 | "Send command to ICE"); |
6027a0b8 | 929 | } |