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0f07afe1 CF |
1 | /* Target-vector operations for controlling Windows CE child processes, for GDB. |
2 | Copyright 1999, 2000 Free Software Foundation, Inc. | |
3 | Contributed by Cygnus Solutions, A Red Hat Company. | |
4 | ||
5 | This file is part of GDB. | |
6 | ||
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. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
dc8d251e | 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
0f07afe1 CF |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | GNU General Public License for more details. | |
16 | ||
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. | |
21 | */ | |
22 | ||
23 | /* by Christopher Faylor (cgf@cygnus.com) */ | |
24 | ||
25 | /* We assume we're being built with and will be used for cygwin. */ | |
26 | ||
27 | #ifdef SHx | |
28 | #undef SH4 | |
29 | #define SH4 /* Just to get all of the CONTEXT defines. */ | |
30 | #endif | |
31 | ||
32 | #include "defs.h" | |
33 | #include "frame.h" /* required by inferior.h */ | |
34 | #include "inferior.h" | |
35 | #include "target.h" | |
0f07afe1 CF |
36 | #include "gdbcore.h" |
37 | #include "command.h" | |
38 | #include <signal.h> | |
39 | #include <sys/types.h> | |
40 | #include <fcntl.h> | |
41 | #include <stdlib.h> | |
42 | ||
43 | #include <windows.h> | |
44 | #include <rapi.h> | |
45 | #include <netdb.h> | |
46 | #include <cygwin/in.h> | |
47 | #include <cygwin/socket.h> | |
48 | ||
49 | #include "buildsym.h" | |
50 | #include "symfile.h" | |
51 | #include "objfiles.h" | |
52 | #include "gdb_string.h" | |
53 | #include "gdbthread.h" | |
54 | #include "gdbcmd.h" | |
55 | #include <sys/param.h> | |
56 | #include "wince-stub.h" | |
57 | #include "dcache.h" | |
61c37cee | 58 | #include <time.h> |
0f07afe1 CF |
59 | |
60 | /* The ui's event loop. */ | |
507f3c78 | 61 | extern int (*ui_loop_hook) (int signo); |
0f07afe1 CF |
62 | |
63 | /* If we're not using the old Cygwin header file set, define the | |
64 | following which never should have been in the generic Win32 API | |
65 | headers in the first place since they were our own invention... */ | |
66 | #ifndef _GNU_H_WINDOWS_H | |
67 | #define FLAG_TRACE_BIT 0x100 | |
68 | #ifdef CONTEXT_FLOATING_POINT | |
69 | #define CONTEXT_DEBUGGER0 (CONTEXT_FULL | CONTEXT_FLOATING_POINT) | |
70 | #else | |
71 | #define CONTEXT_DEBUGGER0 (CONTEXT_FULL) | |
72 | #endif | |
73 | #endif | |
74 | ||
75 | #ifdef SH4 | |
76 | #define CONTEXT_DEBUGGER ((CONTEXT_DEBUGGER0 & ~(CONTEXT_SH4 | CONTEXT_FLOATING_POINT)) | CONTEXT_SH3) | |
77 | #else | |
78 | #define CONTEXT_DEBUGGER CONTEXT_DEBUGGER0 | |
79 | #endif | |
80 | /* The string sent by cygwin when it processes a signal. | |
81 | FIXME: This should be in a cygwin include file. */ | |
82 | #define CYGWIN_SIGNAL_STRING "cygwin: signal" | |
83 | ||
84 | #define CHECK(x) check (x, __FILE__,__LINE__) | |
85 | #define DEBUG_EXEC(x) if (debug_exec) printf x | |
86 | #define DEBUG_EVENTS(x) if (debug_events) printf x | |
87 | #define DEBUG_MEM(x) if (debug_memory) printf x | |
88 | #define DEBUG_EXCEPT(x) if (debug_exceptions) printf x | |
89 | ||
90 | static int connection_initialized = 0; /* True if we've initialized a RAPI session. */ | |
91 | ||
92 | static DCACHE *remote_dcache; | |
93 | ||
94 | /* The directory where the stub and executable files are uploaded. */ | |
95 | static const char *remote_directory = "\\gdb"; | |
96 | ||
97 | /* The types automatic upload available. */ | |
98 | static enum | |
99 | { | |
100 | UPLOAD_ALWAYS = 0, | |
101 | UPLOAD_NEWER = 1, | |
102 | UPLOAD_NEVER = 2 | |
103 | } | |
104 | upload_when = UPLOAD_NEWER; | |
105 | ||
106 | /* Valid options for 'set remoteupload'. Note that options | |
107 | must track upload_when enum. */ | |
108 | static struct opts | |
109 | { | |
110 | const char *name; | |
111 | int abbrev; | |
112 | } | |
113 | upload_options[3] = | |
114 | { | |
115 | { | |
116 | "always", 1 | |
117 | } | |
118 | , | |
119 | { | |
120 | "newer", 3 | |
121 | } | |
122 | , | |
123 | { | |
124 | "never", 3 | |
125 | } | |
126 | }; | |
127 | ||
128 | static char *remote_upload = NULL; /* Set by set remoteupload */ | |
129 | static int remote_add_host = 0; | |
130 | ||
131 | /* Forward declaration */ | |
132 | extern struct target_ops child_ops; | |
133 | ||
a14ed312 KB |
134 | static int win32_child_thread_alive (int); |
135 | void child_kill_inferior (void); | |
0f07afe1 CF |
136 | |
137 | static int last_sig = 0; /* Set if a signal was received from the | |
138 | debugged process */ | |
139 | ||
140 | /* Thread information structure used to track information that is | |
141 | not available in gdb's thread structure. */ | |
142 | typedef struct thread_info_struct | |
143 | { | |
144 | struct thread_info_struct *next; | |
145 | DWORD id; | |
146 | HANDLE h; | |
147 | char *name; | |
148 | int suspend_count; | |
149 | int stepped; /* True if stepped. */ | |
150 | CORE_ADDR step_pc; | |
0f07afe1 CF |
151 | unsigned long step_prev; |
152 | CONTEXT context; | |
153 | } | |
154 | thread_info; | |
155 | ||
156 | static thread_info thread_head = | |
157 | {NULL}; | |
61c37cee | 158 | static thread_info * thread_rec (DWORD id, int get_context); |
0f07afe1 CF |
159 | |
160 | /* The process and thread handles for the above context. */ | |
161 | ||
162 | static DEBUG_EVENT current_event; /* The current debug event from | |
163 | WaitForDebugEvent */ | |
164 | static HANDLE current_process_handle; /* Currently executing process */ | |
165 | static thread_info *current_thread; /* Info on currently selected thread */ | |
166 | static thread_info *this_thread; /* Info on thread returned by wait_for_debug_event */ | |
167 | static DWORD main_thread_id; /* Thread ID of the main thread */ | |
168 | ||
169 | /* Counts of things. */ | |
170 | static int exception_count = 0; | |
171 | static int event_count = 0; | |
172 | ||
173 | /* User options. */ | |
174 | static int debug_exec = 0; /* show execution */ | |
175 | static int debug_events = 0; /* show events from kernel */ | |
176 | static int debug_memory = 0; /* show target memory accesses */ | |
177 | static int debug_exceptions = 0; /* show target exceptions */ | |
178 | ||
179 | /* An array of offset mappings into a Win32 Context structure. | |
180 | This is a one-to-one mapping which is indexed by gdb's register | |
181 | numbers. It retrieves an offset into the context structure where | |
182 | the 4 byte register is located. | |
183 | An offset value of -1 indicates that Win32 does not provide this | |
184 | register in it's CONTEXT structure. regptr will return zero for this | |
185 | register. | |
186 | ||
187 | This is used by the regptr function. */ | |
188 | #define context_offset(x) ((int)&(((PCONTEXT)NULL)->x)) | |
189 | static const int mappings[NUM_REGS + 1] = | |
190 | { | |
191 | #ifdef __i386__ | |
192 | context_offset (Eax), | |
193 | context_offset (Ecx), | |
194 | context_offset (Edx), | |
195 | context_offset (Ebx), | |
196 | context_offset (Esp), | |
197 | context_offset (Ebp), | |
198 | context_offset (Esi), | |
199 | context_offset (Edi), | |
200 | context_offset (Eip), | |
201 | context_offset (EFlags), | |
202 | context_offset (SegCs), | |
203 | context_offset (SegSs), | |
204 | context_offset (SegDs), | |
205 | context_offset (SegEs), | |
206 | context_offset (SegFs), | |
207 | context_offset (SegGs), | |
208 | context_offset (FloatSave.RegisterArea[0 * 10]), | |
209 | context_offset (FloatSave.RegisterArea[1 * 10]), | |
210 | context_offset (FloatSave.RegisterArea[2 * 10]), | |
211 | context_offset (FloatSave.RegisterArea[3 * 10]), | |
212 | context_offset (FloatSave.RegisterArea[4 * 10]), | |
213 | context_offset (FloatSave.RegisterArea[5 * 10]), | |
214 | context_offset (FloatSave.RegisterArea[6 * 10]), | |
215 | context_offset (FloatSave.RegisterArea[7 * 10]), | |
216 | #elif defined(SHx) | |
217 | context_offset (R0), | |
218 | context_offset (R1), | |
219 | context_offset (R2), | |
220 | context_offset (R3), | |
221 | context_offset (R4), | |
222 | context_offset (R5), | |
223 | context_offset (R6), | |
224 | context_offset (R7), | |
225 | context_offset (R8), | |
226 | context_offset (R9), | |
227 | context_offset (R10), | |
228 | context_offset (R11), | |
229 | context_offset (R12), | |
230 | context_offset (R13), | |
231 | context_offset (R14), | |
232 | context_offset (R15), | |
233 | context_offset (Fir), | |
234 | context_offset (PR), /* Procedure Register */ | |
235 | context_offset (GBR), /* Global Base Register */ | |
236 | context_offset (MACH), /* Accumulate */ | |
237 | context_offset (MACL), /* Multiply */ | |
238 | context_offset (Psr), | |
239 | context_offset (Fpul), | |
240 | context_offset (Fpscr), | |
241 | context_offset (FRegs[0]), | |
242 | context_offset (FRegs[1]), | |
243 | context_offset (FRegs[2]), | |
244 | context_offset (FRegs[3]), | |
245 | context_offset (FRegs[4]), | |
246 | context_offset (FRegs[5]), | |
247 | context_offset (FRegs[6]), | |
248 | context_offset (FRegs[7]), | |
249 | context_offset (FRegs[8]), | |
250 | context_offset (FRegs[9]), | |
251 | context_offset (FRegs[10]), | |
252 | context_offset (FRegs[11]), | |
253 | context_offset (FRegs[12]), | |
254 | context_offset (FRegs[13]), | |
255 | context_offset (FRegs[14]), | |
256 | context_offset (FRegs[15]), | |
257 | context_offset (xFRegs[0]), | |
258 | context_offset (xFRegs[1]), | |
259 | context_offset (xFRegs[2]), | |
260 | context_offset (xFRegs[3]), | |
261 | context_offset (xFRegs[4]), | |
262 | context_offset (xFRegs[5]), | |
263 | context_offset (xFRegs[6]), | |
264 | context_offset (xFRegs[7]), | |
265 | context_offset (xFRegs[8]), | |
266 | context_offset (xFRegs[9]), | |
267 | context_offset (xFRegs[10]), | |
268 | context_offset (xFRegs[11]), | |
269 | context_offset (xFRegs[12]), | |
270 | context_offset (xFRegs[13]), | |
271 | context_offset (xFRegs[14]), | |
272 | context_offset (xFRegs[15]), | |
273 | #elif defined(MIPS) | |
274 | context_offset (IntZero), | |
275 | context_offset (IntAt), | |
276 | context_offset (IntV0), | |
277 | context_offset (IntV1), | |
278 | context_offset (IntA0), | |
279 | context_offset (IntA1), | |
280 | context_offset (IntA2), | |
281 | context_offset (IntA3), | |
282 | context_offset (IntT0), | |
283 | context_offset (IntT1), | |
284 | context_offset (IntT2), | |
285 | context_offset (IntT3), | |
286 | context_offset (IntT4), | |
287 | context_offset (IntT5), | |
288 | context_offset (IntT6), | |
289 | context_offset (IntT7), | |
290 | context_offset (IntS0), | |
291 | context_offset (IntS1), | |
292 | context_offset (IntS2), | |
293 | context_offset (IntS3), | |
294 | context_offset (IntS4), | |
295 | context_offset (IntS5), | |
296 | context_offset (IntS6), | |
297 | context_offset (IntS7), | |
298 | context_offset (IntT8), | |
299 | context_offset (IntT9), | |
300 | context_offset (IntK0), | |
301 | context_offset (IntK1), | |
302 | context_offset (IntGp), | |
303 | context_offset (IntSp), | |
304 | context_offset (IntS8), | |
305 | context_offset (IntRa), | |
306 | context_offset (Psr), | |
307 | context_offset (IntLo), | |
308 | context_offset (IntHi), | |
309 | -1, /* bad */ | |
310 | -1, /* cause */ | |
311 | context_offset (Fir), | |
312 | context_offset (FltF0), | |
313 | context_offset (FltF1), | |
314 | context_offset (FltF2), | |
315 | context_offset (FltF3), | |
316 | context_offset (FltF4), | |
317 | context_offset (FltF5), | |
318 | context_offset (FltF6), | |
319 | context_offset (FltF7), | |
320 | context_offset (FltF8), | |
321 | context_offset (FltF9), | |
322 | context_offset (FltF10), | |
323 | context_offset (FltF11), | |
324 | context_offset (FltF12), | |
325 | context_offset (FltF13), | |
326 | context_offset (FltF14), | |
327 | context_offset (FltF15), | |
328 | context_offset (FltF16), | |
329 | context_offset (FltF17), | |
330 | context_offset (FltF18), | |
331 | context_offset (FltF19), | |
332 | context_offset (FltF20), | |
333 | context_offset (FltF21), | |
334 | context_offset (FltF22), | |
335 | context_offset (FltF23), | |
336 | context_offset (FltF24), | |
337 | context_offset (FltF25), | |
338 | context_offset (FltF26), | |
339 | context_offset (FltF27), | |
340 | context_offset (FltF28), | |
341 | context_offset (FltF29), | |
342 | context_offset (FltF30), | |
343 | context_offset (FltF31), | |
344 | context_offset (Fsr), | |
345 | context_offset (Fir), | |
346 | -1, /* fp */ | |
347 | #elif defined(ARM) | |
348 | context_offset (R0), | |
349 | context_offset (R1), | |
350 | context_offset (R2), | |
351 | context_offset (R3), | |
352 | context_offset (R4), | |
353 | context_offset (R5), | |
354 | context_offset (R6), | |
355 | context_offset (R7), | |
356 | context_offset (R8), | |
357 | context_offset (R9), | |
358 | context_offset (R10), | |
359 | context_offset (R11), | |
360 | context_offset (R12), | |
361 | context_offset (Sp), | |
362 | context_offset (Lr), | |
363 | context_offset (Pc), | |
364 | -1, | |
365 | -1, | |
366 | -1, | |
367 | -1, | |
368 | -1, | |
369 | -1, | |
370 | -1, | |
371 | -1, | |
372 | -1, | |
373 | context_offset (Psr), | |
374 | #endif | |
375 | -1 | |
376 | }; | |
377 | ||
61c37cee CF |
378 | /* Return a pointer into a CONTEXT field indexed by gdb register number. |
379 | Return a pointer to an address pointing to zero if there is no | |
380 | corresponding CONTEXT field for the given register number. | |
381 | */ | |
382 | static ULONG * | |
383 | regptr (LPCONTEXT c, int r) | |
0f07afe1 | 384 | { |
61c37cee CF |
385 | static ULONG zero = 0; |
386 | ULONG *p; | |
387 | if (mappings[r] < 0) | |
388 | p = &zero; | |
389 | else | |
390 | p = (ULONG *) (((char *) c) + mappings[r]); | |
391 | return p; | |
392 | } | |
0f07afe1 CF |
393 | |
394 | /******************** Beginning of stub interface ********************/ | |
395 | ||
396 | /* Stub interface description: | |
397 | ||
398 | The Windows CE stub implements a crude RPC. The hand-held device | |
399 | connects to gdb using port 7000. gdb and the stub then communicate | |
400 | using packets where: | |
401 | ||
402 | byte 0: command id (e.g. Create Process) | |
403 | ||
404 | byte 1-4: DWORD | |
405 | ||
406 | byte 1-2: WORD | |
407 | ||
408 | byte 1-2: length | |
409 | byte 3-n: arbitrary memory. | |
410 | ||
411 | The interface is deterministic, i.e., if the stub expects a DWORD then | |
412 | the gdb server should send a DWORD. | |
413 | */ | |
414 | ||
415 | /* Note: In the functions below, the `huh' parameter is a string passed from the | |
416 | function containing a descriptive string concerning the current operation. | |
417 | This is used for error reporting. | |
418 | ||
419 | The 'what' parameter is a command id as found in wince-stub.h. | |
420 | ||
421 | Hopefully, the rest of the parameters are self-explanatory. | |
422 | */ | |
423 | ||
424 | static int s; /* communication socket */ | |
425 | ||
426 | /* v-style interface for handling varying argyment list error messages. | |
427 | Displays the error message in a dialog box and exits when user clicks | |
428 | on OK. */ | |
429 | static void | |
430 | vstub_error (LPCSTR fmt, va_list * args) | |
431 | { | |
432 | char buf[4096]; | |
433 | vsprintf (buf, fmt, args); | |
434 | s = -1; | |
435 | error ("%s", buf); | |
436 | } | |
437 | ||
438 | /* The standard way to display an error message and exit. */ | |
439 | static void | |
440 | stub_error (LPCSTR fmt,...) | |
441 | { | |
442 | va_list args; | |
443 | va_start (args, fmt); | |
444 | vstub_error (fmt, args); | |
445 | } | |
446 | ||
447 | /* Standard "oh well" can't communicate error. Someday this might attempt | |
448 | synchronization. */ | |
449 | static void | |
450 | attempt_resync (LPCSTR huh, int s) | |
451 | { | |
452 | stub_error ("lost synchronization with target attempting %s", huh); | |
453 | } | |
454 | ||
455 | /* Read arbitrary stuff from a socket. */ | |
456 | static int | |
457 | sockread (LPCSTR huh, int s, void *str, size_t n) | |
458 | { | |
459 | for (;;) | |
460 | { | |
461 | if (recv (s, str, n, 0) == n) | |
462 | return n; | |
463 | attempt_resync (huh, s); | |
464 | } | |
465 | } | |
466 | ||
467 | /* Write arbitrary stuff to a socket. */ | |
468 | static int | |
469 | sockwrite (LPCSTR huh, const void *str, size_t n) | |
470 | { | |
471 | for (;;) | |
472 | { | |
473 | if (send (s, str, n, 0) == n) | |
474 | return n; | |
475 | attempt_resync (huh, s); | |
476 | } | |
477 | } | |
478 | ||
479 | /* Output an id/dword to the host */ | |
480 | static void | |
481 | putdword (LPCSTR huh, gdb_wince_id what, DWORD n) | |
482 | { | |
483 | if (sockwrite (huh, &what, sizeof (what)) != sizeof (what)) | |
484 | stub_error ("error writing record id to host for %s", huh); | |
485 | if (sockwrite (huh, &n, sizeof (n)) != sizeof (n)) | |
486 | stub_error ("error writing %s to host.", huh); | |
487 | } | |
488 | ||
489 | /* Output an id/word to the host */ | |
490 | static void | |
491 | putword (LPCSTR huh, gdb_wince_id what, WORD n) | |
492 | { | |
493 | if (sockwrite (huh, &what, sizeof (what)) != sizeof (what)) | |
494 | stub_error ("error writing record id to host for %s", huh); | |
495 | if (sockwrite (huh, &n, sizeof (n)) != sizeof (n)) | |
496 | stub_error ("error writing %s host.", huh); | |
497 | } | |
498 | ||
499 | /* Convenience define for outputting a "gdb_wince_len" type. */ | |
500 | #define putlen(huh, what, n) putword((huh), (what), (gdb_wince_len) (n)) | |
501 | ||
502 | /* Put an arbitrary block of memory to the gdb host. This comes in | |
503 | two chunks an id/dword representing the length and the stream of memory | |
504 | itself. */ | |
505 | static void | |
506 | putmemory (LPCSTR huh, gdb_wince_id what, const void *mem, gdb_wince_len len) | |
507 | { | |
508 | putlen (huh, what, len); | |
509 | if (((short) len > 0) && sockwrite (huh, mem, len) != len) | |
510 | stub_error ("error writing %s to host.", huh); | |
511 | } | |
512 | ||
513 | /* Output the result of an operation to the host. If res != 0, sends a block of | |
514 | memory starting at mem of len bytes. If res == 0, sends -GetLastError () and | |
515 | avoids sending the mem. */ | |
516 | static DWORD | |
517 | getdword (LPCSTR huh, gdb_wince_id what_this) | |
518 | { | |
519 | DWORD n; | |
520 | gdb_wince_id what; | |
521 | do | |
522 | if (sockread (huh, s, &what, sizeof (what)) != sizeof (what)) | |
523 | stub_error ("error getting record type from host - %s.", huh); | |
524 | while (what_this != what); | |
525 | ||
526 | if (sockread (huh, s, &n, sizeof (n)) != sizeof (n)) | |
527 | stub_error ("error getting %s from host.", huh); | |
528 | ||
529 | return n; | |
530 | } | |
531 | ||
532 | /* Get a an ID (possibly) and a WORD from the host gdb. | |
533 | Don't bother with the id if the main loop has already | |
534 | read it. */ | |
535 | static WORD | |
536 | getword (LPCSTR huh, gdb_wince_id what_this) | |
537 | { | |
538 | WORD n; | |
539 | gdb_wince_id what; | |
540 | do | |
541 | if (sockread (huh, s, &what, sizeof (what)) != sizeof (what)) | |
542 | stub_error ("error getting record type from host - %s.", huh); | |
543 | while (what_this != what); | |
544 | ||
545 | if (sockread (huh, s, &n, sizeof (n)) != sizeof (n)) | |
546 | stub_error ("error getting %s from host.", huh); | |
547 | ||
548 | return n; | |
549 | } | |
550 | ||
551 | /* Handy defines for getting/putting various types of values. */ | |
552 | #define gethandle(huh, what) (HANDLE) getdword ((huh), (what)) | |
553 | #define getpvoid(huh, what) (LPVOID) getdword ((huh), (what)) | |
554 | #define getlen(huh, what) (gdb_wince_len) getword ((huh), (what)) | |
555 | #define puthandle(huh, what, h) putdword ((huh), (what), (DWORD) (h)) | |
556 | #define putpvoid(huh, what, p) putdword ((huh), (what), (DWORD) (p)) | |
557 | ||
558 | /* Retrieve the result of an operation from the stub. If nbytes < 0) then nbytes | |
559 | is actually an error and nothing else follows. Use SetLastError to remember this. | |
560 | if nbytes > 0, retrieve a block of *nbytes into buf. | |
561 | */ | |
562 | int | |
563 | getresult (LPCSTR huh, gdb_wince_id what, LPVOID buf, gdb_wince_len * nbytes) | |
564 | { | |
565 | gdb_wince_len dummy; | |
566 | if (nbytes == NULL) | |
567 | nbytes = &dummy; | |
568 | ||
569 | *nbytes = getlen (huh, what); | |
570 | ||
571 | if ((short) *nbytes < 0) | |
572 | { | |
573 | SetLastError (-(short) *nbytes); | |
574 | return 0; | |
575 | } | |
576 | ||
577 | if ((gdb_wince_len) sockread (huh, s, buf, *nbytes) != *nbytes) | |
578 | stub_error ("couldn't read information from wince stub - %s", huh); | |
579 | ||
580 | return 1; | |
581 | } | |
582 | ||
583 | /* Convert "narrow" string to "wide". Manipulates a buffer ring of 8 | |
584 | buffers which hold the translated string. This is an arbitrary limit | |
585 | but it is approximately double the current needs of this module. | |
586 | */ | |
587 | LPWSTR | |
588 | towide (const char *s, gdb_wince_len * out_len) | |
589 | { | |
590 | static int n = -1; | |
591 | static LPWSTR outs[8] = | |
592 | {NULL /*, NULL, etc. */ }; | |
593 | gdb_wince_len dummy; | |
594 | ||
595 | if (!out_len) | |
596 | out_len = &dummy; | |
597 | ||
598 | /* First determine the length required to hold the converted string. */ | |
599 | *out_len = sizeof (WCHAR) * MultiByteToWideChar (CP_ACP, 0, s, -1, NULL, 0); | |
600 | if (!*out_len) | |
601 | return NULL; /* The conversion failed */ | |
602 | ||
603 | if (++n >= (sizeof (outs) / sizeof (outs[0]))) | |
604 | n = 0; /* wrap */ | |
605 | ||
606 | /* Allocate space for the converted string, reusing any previously allocated | |
607 | space, if applicable. Note that if outs[n] is NULL, realloc will act as | |
608 | a malloc (under cygwin, at least). | |
609 | */ | |
610 | outs[n] = (LPWSTR) realloc (outs[n], *out_len); | |
611 | memset (outs[n], 0, *out_len); | |
612 | (void) MultiByteToWideChar (CP_ACP, 0, s, -1, outs[n], *out_len); | |
613 | return outs[n]; | |
614 | } | |
615 | ||
616 | /******************** Emulation routines start here. ******************** | |
617 | ||
618 | The functions below are modelled after their Win32 counterparts. They are named | |
619 | similarly to Win32 and take exactly the same arguments except where otherwise noted. | |
620 | They communicate with the stub on the hand-held device by sending their arguments | |
621 | over the socket and waiting for results from the socket. | |
622 | ||
623 | There is one universal change. In cases where a length is expected to be returned | |
624 | in a DWORD, we use a gdb_wince_len type instead. Currently this is an unsigned short | |
625 | which is smaller than the standard Win32 DWORD. This is done to minimize unnecessary | |
626 | traffic since the connection to Windows CE can be slow. To change this, modify the | |
627 | typedef in wince-stub.h and change the putlen/getlen macros in this file and in | |
628 | the stub. | |
629 | */ | |
61c37cee | 630 | |
0f07afe1 CF |
631 | static int |
632 | create_process (LPSTR exec_file, LPSTR args, DWORD flags, PROCESS_INFORMATION * pi) | |
633 | { | |
634 | gdb_wince_len len; | |
635 | LPWSTR buf; | |
636 | ||
637 | buf = towide (exec_file, &len); | |
638 | putmemory ("CreateProcess exec_file", GDB_CREATEPROCESS, buf, len); | |
639 | buf = towide (args, &len); | |
640 | putmemory ("CreateProcess args", GDB_CREATEPROCESS, buf, len); | |
641 | putdword ("CreateProcess flags", GDB_CREATEPROCESS, flags); | |
642 | return getresult ("CreateProcess result", GDB_CREATEPROCESS, pi, NULL); | |
643 | } | |
644 | ||
645 | /* Emulate TerminateProcess. Don't bother with the second argument since CE | |
646 | ignores it. | |
647 | */ | |
648 | static int | |
649 | terminate_process (HANDLE h) | |
650 | { | |
651 | gdb_wince_result res; | |
652 | if (s < 0) | |
653 | return 1; | |
654 | puthandle ("TerminateProcess handle", GDB_TERMINATEPROCESS, h); | |
655 | return getresult ("TerminateProcess result", GDB_TERMINATEPROCESS, &res, NULL); | |
656 | } | |
657 | ||
658 | static int | |
659 | wait_for_debug_event (DEBUG_EVENT * ev, DWORD ms) | |
660 | { | |
661 | if (s < 0) | |
662 | return 1; | |
663 | putdword ("WaitForDebugEvent ms", GDB_WAITFORDEBUGEVENT, ms); | |
664 | return getresult ("WaitForDebugEvent event", GDB_WAITFORDEBUGEVENT, ev, NULL); | |
665 | } | |
666 | ||
667 | static int | |
668 | get_thread_context (HANDLE h, CONTEXT * c) | |
669 | { | |
670 | if (s < 0) | |
671 | return 1; | |
672 | puthandle ("GetThreadContext handle", GDB_GETTHREADCONTEXT, h); | |
673 | putdword ("GetThreadContext flags", GDB_GETTHREADCONTEXT, c->ContextFlags); | |
674 | return getresult ("GetThreadContext context", GDB_GETTHREADCONTEXT, c, NULL); | |
675 | } | |
676 | ||
677 | static int | |
678 | set_thread_context (HANDLE h, CONTEXT * c) | |
679 | { | |
680 | gdb_wince_result res; | |
681 | if (s < 0) | |
682 | return 1; | |
683 | puthandle ("SetThreadContext handle", GDB_SETTHREADCONTEXT, h); | |
684 | putmemory ("SetThreadContext context", GDB_SETTHREADCONTEXT, c, sizeof (*c)); | |
685 | return getresult ("SetThreadContext context", GDB_SETTHREADCONTEXT, &res, NULL); | |
686 | } | |
687 | ||
688 | static int | |
689 | read_process_memory (HANDLE h, LPCVOID where, LPVOID buf, gdb_wince_len len, gdb_wince_len * nbytes) | |
690 | { | |
691 | if (s < 0) | |
692 | return 1; | |
693 | puthandle ("ReadProcessMemory handle", GDB_READPROCESSMEMORY, h); | |
694 | putpvoid ("ReadProcessMemory location", GDB_READPROCESSMEMORY, where); | |
695 | putlen ("ReadProcessMemory size", GDB_READPROCESSMEMORY, len); | |
696 | ||
697 | return getresult ("ReadProcessMemory buf", GDB_READPROCESSMEMORY, buf, nbytes); | |
698 | } | |
699 | ||
700 | static int | |
701 | write_process_memory (HANDLE h, LPCVOID where, LPCVOID buf, gdb_wince_len len, gdb_wince_len * nbytes) | |
702 | { | |
703 | if (s < 0) | |
704 | return 1; | |
705 | puthandle ("WriteProcessMemory handle", GDB_WRITEPROCESSMEMORY, h); | |
706 | putpvoid ("WriteProcessMemory location", GDB_WRITEPROCESSMEMORY, where); | |
707 | putmemory ("WriteProcProcessMemory buf", GDB_WRITEPROCESSMEMORY, buf, len); | |
708 | ||
709 | return getresult ("WriteProcessMemory result", GDB_WRITEPROCESSMEMORY, nbytes, NULL); | |
710 | } | |
711 | ||
712 | static int | |
713 | remote_read_bytes (CORE_ADDR memaddr, char *myaddr, int len) | |
714 | { | |
715 | gdb_wince_len nbytes; | |
716 | if (!read_process_memory (current_process_handle, (LPCVOID) memaddr, | |
717 | (LPVOID) myaddr, len, &nbytes)) | |
718 | return -1; | |
719 | return nbytes; | |
720 | } | |
721 | ||
722 | static int | |
723 | remote_write_bytes (CORE_ADDR memaddr, char *myaddr, int len) | |
724 | { | |
725 | gdb_wince_len nbytes; | |
726 | if (!write_process_memory (current_process_handle, (LPCVOID) memaddr, | |
727 | (LPCVOID) myaddr, len, &nbytes)) | |
728 | return -1; | |
729 | return nbytes; | |
730 | } | |
731 | ||
732 | /* This is not a standard Win32 function. It instructs the stub to return TRUE | |
733 | if the thread referenced by HANDLE h is alive. | |
734 | */ | |
735 | static int | |
736 | thread_alive (HANDLE h) | |
737 | { | |
738 | gdb_wince_result res; | |
739 | if (s < 0) | |
740 | return 1; | |
741 | puthandle ("ThreadAlive handle", GDB_THREADALIVE, h); | |
742 | return getresult ("ThreadAlive result", GDB_THREADALIVE, &res, NULL); | |
743 | } | |
744 | ||
745 | static int | |
746 | suspend_thread (HANDLE h) | |
747 | { | |
748 | if (s < 0) | |
749 | return 1; | |
750 | puthandle ("SuspendThread handle", GDB_SUSPENDTHREAD, h); | |
751 | return (int) getdword ("SuspendThread result", GDB_SUSPENDTHREAD); | |
752 | } | |
753 | ||
754 | static int | |
755 | resume_thread (HANDLE h) | |
756 | { | |
757 | if (s < 0) | |
758 | return 1; | |
759 | puthandle ("ResumeThread handle", GDB_RESUMETHREAD, h); | |
760 | return (int) getdword ("SuspendThread result", GDB_RESUMETHREAD); | |
761 | } | |
762 | ||
763 | static int | |
764 | continue_debug_event (DWORD pid, DWORD tid, DWORD status) | |
765 | { | |
766 | gdb_wince_result res; | |
767 | if (s < 0) | |
768 | return 0; | |
769 | putdword ("ContinueDebugEvent pid", GDB_CONTINUEDEBUGEVENT, pid); | |
770 | putdword ("ContinueDebugEvent tid", GDB_CONTINUEDEBUGEVENT, tid); | |
771 | putdword ("ContinueDebugEvent status", GDB_CONTINUEDEBUGEVENT, status); | |
772 | return getresult ("ContinueDebugEvent result", GDB_CONTINUEDEBUGEVENT, &res, NULL); | |
773 | } | |
774 | ||
775 | static int | |
776 | close_handle (HANDLE h) | |
777 | { | |
778 | gdb_wince_result res; | |
779 | if (s < 0) | |
780 | return 1; | |
781 | puthandle ("CloseHandle handle", GDB_CLOSEHANDLE, h); | |
782 | return (int) getresult ("CloseHandle result", GDB_CLOSEHANDLE, &res, NULL); | |
783 | } | |
784 | ||
785 | /* This is not a standard Win32 interface. This function tells the stub | |
786 | to terminate. | |
787 | */ | |
788 | static void | |
fba45db2 | 789 | stop_stub (void) |
0f07afe1 CF |
790 | { |
791 | if (s < 0) | |
792 | return; | |
793 | (void) putdword ("Stopping gdb stub", GDB_STOPSTUB, 0); | |
794 | s = -1; | |
795 | } | |
796 | ||
797 | /******************** End of emulation routines. ********************/ | |
798 | /******************** End of stub interface ********************/ | |
799 | ||
61c37cee CF |
800 | #define check_for_step(a, x) (x) |
801 | ||
802 | #ifdef MIPS | |
803 | static void | |
804 | undoSStep (thread_info * th) | |
805 | { | |
806 | if (th->stepped) | |
807 | { | |
808 | memory_remove_breakpoint (th->step_pc, (void *) &th->step_prev); | |
809 | th->stepped = 0; | |
810 | } | |
811 | } | |
812 | ||
813 | void | |
814 | wince_software_single_step (unsigned int ignore, int insert_breakpoints_p) | |
815 | { | |
816 | unsigned long pc; | |
817 | thread_info *th = current_thread; /* Info on currently selected thread */ | |
818 | CORE_ADDR mips_next_pc (CORE_ADDR pc); | |
819 | ||
820 | if (!insert_breakpoints_p) | |
821 | { | |
822 | undoSStep (th); | |
823 | return; | |
824 | } | |
825 | ||
826 | th->stepped = 1; | |
827 | pc = read_register (PC_REGNUM); | |
828 | th->step_pc = mips_next_pc (pc); | |
829 | th->step_prev = 0; | |
830 | memory_insert_breakpoint (th->step_pc, (void *) &th->step_prev); | |
831 | return; | |
832 | } | |
833 | #elif SHx | |
834 | /* Hitachi SH architecture instruction encoding masks */ | |
835 | ||
836 | #define COND_BR_MASK 0xff00 | |
837 | #define UCOND_DBR_MASK 0xe000 | |
838 | #define UCOND_RBR_MASK 0xf0df | |
839 | #define TRAPA_MASK 0xff00 | |
840 | ||
841 | #define COND_DISP 0x00ff | |
842 | #define UCOND_DISP 0x0fff | |
843 | #define UCOND_REG 0x0f00 | |
844 | ||
845 | /* Hitachi SH instruction opcodes */ | |
846 | ||
847 | #define BF_INSTR 0x8b00 | |
848 | #define BT_INSTR 0x8900 | |
849 | #define BRA_INSTR 0xa000 | |
850 | #define BSR_INSTR 0xb000 | |
851 | #define JMP_INSTR 0x402b | |
852 | #define JSR_INSTR 0x400b | |
853 | #define RTS_INSTR 0x000b | |
854 | #define RTE_INSTR 0x002b | |
855 | #define TRAPA_INSTR 0xc300 | |
856 | #define SSTEP_INSTR 0xc3ff | |
857 | ||
858 | ||
859 | #define T_BIT_MASK 0x0001 | |
860 | ||
861 | static CORE_ADDR | |
862 | sh_get_next_pc (CONTEXT *c) | |
863 | { | |
864 | short *instrMem; | |
865 | int displacement; | |
866 | int reg; | |
867 | unsigned short opcode; | |
868 | ||
869 | instrMem = (short *) c->Fir; | |
870 | ||
871 | opcode = read_memory_integer ((CORE_ADDR) c->Fir, sizeof (opcode)); | |
872 | ||
873 | if ((opcode & COND_BR_MASK) == BT_INSTR) | |
874 | { | |
875 | if (c->Psr & T_BIT_MASK) | |
876 | { | |
877 | displacement = (opcode & COND_DISP) << 1; | |
878 | if (displacement & 0x80) | |
879 | displacement |= 0xffffff00; | |
880 | /* | |
881 | * Remember PC points to second instr. | |
882 | * after PC of branch ... so add 4 | |
883 | */ | |
884 | instrMem = (short *) (c->Fir + displacement + 4); | |
885 | } | |
886 | else | |
887 | instrMem += 1; | |
888 | } | |
889 | else if ((opcode & COND_BR_MASK) == BF_INSTR) | |
890 | { | |
891 | if (c->Psr & T_BIT_MASK) | |
892 | instrMem += 1; | |
893 | else | |
894 | { | |
895 | displacement = (opcode & COND_DISP) << 1; | |
896 | if (displacement & 0x80) | |
897 | displacement |= 0xffffff00; | |
898 | /* | |
899 | * Remember PC points to second instr. | |
900 | * after PC of branch ... so add 4 | |
901 | */ | |
902 | instrMem = (short *) (c->Fir + displacement + 4); | |
903 | } | |
904 | } | |
905 | else if ((opcode & UCOND_DBR_MASK) == BRA_INSTR) | |
906 | { | |
907 | displacement = (opcode & UCOND_DISP) << 1; | |
908 | if (displacement & 0x0800) | |
909 | displacement |= 0xfffff000; | |
910 | ||
911 | /* | |
912 | * Remember PC points to second instr. | |
913 | * after PC of branch ... so add 4 | |
914 | */ | |
915 | instrMem = (short *) (c->Fir + displacement + 4); | |
916 | } | |
917 | else if ((opcode & UCOND_RBR_MASK) == JSR_INSTR) | |
918 | { | |
919 | reg = (char) ((opcode & UCOND_REG) >> 8); | |
920 | ||
921 | instrMem = (short *) *regptr (c, reg); | |
922 | } | |
923 | else if (opcode == RTS_INSTR) | |
924 | instrMem = (short *) c->PR; | |
925 | else if (opcode == RTE_INSTR) | |
926 | instrMem = (short *) *regptr (c, 15); | |
927 | else if ((opcode & TRAPA_MASK) == TRAPA_INSTR) | |
928 | instrMem = (short *) ((opcode & ~TRAPA_MASK) << 2); | |
929 | else | |
930 | instrMem += 1; | |
931 | ||
932 | return (CORE_ADDR) instrMem; | |
933 | } | |
934 | /* Single step (in a painstaking fashion) by inspecting the current | |
935 | instruction and setting a breakpoint on the "next" instruction | |
936 | which would be executed. This code hails from sh-stub.c. | |
937 | */ | |
938 | static void | |
939 | undoSStep (thread_info * th) | |
940 | { | |
941 | if (th->stepped) | |
942 | { | |
943 | memory_remove_breakpoint (th->step_pc, (void *) &th->step_prev); | |
944 | th->stepped = 0; | |
945 | } | |
946 | return; | |
947 | } | |
948 | ||
949 | /* Single step (in a painstaking fashion) by inspecting the current | |
950 | instruction and setting a breakpoint on the "next" instruction | |
951 | which would be executed. This code hails from sh-stub.c. | |
952 | */ | |
953 | void | |
954 | wince_software_single_step (unsigned int ignore, int insert_breakpoints_p) | |
955 | { | |
956 | thread_info *th = current_thread; /* Info on currently selected thread */ | |
957 | ||
958 | if (!insert_breakpoints_p) | |
959 | { | |
960 | undoSStep (th); | |
961 | return; | |
962 | } | |
963 | ||
964 | th->stepped = 1; | |
965 | th->step_pc = sh_get_next_pc (&th->context); | |
966 | th->step_prev = 0; | |
967 | memory_insert_breakpoint (th->step_pc, (void *) &th->step_prev); | |
968 | return; | |
969 | } | |
970 | #elif defined (ARM) | |
971 | #undef check_for_step | |
972 | ||
973 | static enum target_signal | |
974 | check_for_step (DEBUG_EVENT *ev, enum target_signal x) | |
975 | { | |
976 | thread_info *th = thread_rec (ev->dwThreadId, 1); | |
977 | ||
978 | if (th->stepped && | |
979 | th->step_pc == (CORE_ADDR) ev->u.Exception.ExceptionRecord.ExceptionAddress) | |
980 | return TARGET_SIGNAL_TRAP; | |
981 | else | |
982 | return x; | |
983 | } | |
984 | ||
985 | /* Single step (in a painstaking fashion) by inspecting the current | |
986 | instruction and setting a breakpoint on the "next" instruction | |
987 | which would be executed. This code hails from sh-stub.c. | |
988 | */ | |
989 | static void | |
990 | undoSStep (thread_info * th) | |
991 | { | |
992 | if (th->stepped) | |
993 | { | |
994 | memory_remove_breakpoint (th->step_pc, (void *) &th->step_prev); | |
995 | th->stepped = 0; | |
996 | } | |
997 | } | |
998 | ||
999 | void | |
1000 | wince_software_single_step (unsigned int ignore, int insert_breakpoints_p) | |
1001 | { | |
1002 | unsigned long pc; | |
1003 | thread_info *th = current_thread; /* Info on currently selected thread */ | |
1004 | CORE_ADDR mips_next_pc (CORE_ADDR pc); | |
1005 | ||
1006 | if (!insert_breakpoints_p) | |
1007 | { | |
1008 | undoSStep (th); | |
1009 | return; | |
1010 | } | |
1011 | ||
1012 | th->stepped = 1; | |
1013 | pc = read_register (PC_REGNUM); | |
1014 | th->step_pc = arm_get_next_pc (pc); | |
1015 | th->step_prev = 0; | |
1016 | memory_insert_breakpoint (th->step_pc, (void *) &th->step_prev); | |
1017 | return; | |
1018 | } | |
1019 | #endif | |
1020 | ||
0f07afe1 CF |
1021 | /* Find a thread record given a thread id. |
1022 | If get_context then also retrieve the context for this | |
1023 | thread. */ | |
1024 | static thread_info * | |
1025 | thread_rec (DWORD id, int get_context) | |
1026 | { | |
1027 | thread_info *th; | |
1028 | ||
1029 | for (th = &thread_head; (th = th->next) != NULL;) | |
1030 | if (th->id == id) | |
1031 | { | |
1032 | if (!th->suspend_count && get_context) | |
1033 | { | |
1034 | if (get_context > 0 && th != this_thread) | |
1035 | th->suspend_count = suspend_thread (th->h) + 1; | |
1036 | else if (get_context < 0) | |
1037 | th->suspend_count = -1; | |
1038 | ||
1039 | th->context.ContextFlags = CONTEXT_DEBUGGER; | |
1040 | get_thread_context (th->h, &th->context); | |
1041 | } | |
1042 | return th; | |
1043 | } | |
1044 | ||
1045 | return NULL; | |
1046 | } | |
1047 | ||
1048 | /* Add a thread to the thread list */ | |
1049 | static thread_info * | |
1050 | child_add_thread (DWORD id, HANDLE h) | |
1051 | { | |
1052 | thread_info *th; | |
1053 | ||
1054 | if ((th = thread_rec (id, FALSE))) | |
1055 | return th; | |
1056 | ||
1057 | th = (thread_info *) xmalloc (sizeof (*th)); | |
1058 | memset (th, 0, sizeof (*th)); | |
1059 | th->id = id; | |
1060 | th->h = h; | |
1061 | th->next = thread_head.next; | |
1062 | thread_head.next = th; | |
1063 | add_thread (id); | |
1064 | return th; | |
1065 | } | |
1066 | ||
1067 | /* Clear out any old thread list and reintialize it to a | |
1068 | pristine state. */ | |
1069 | static void | |
fba45db2 | 1070 | child_init_thread_list (void) |
0f07afe1 CF |
1071 | { |
1072 | thread_info *th = &thread_head; | |
1073 | ||
1074 | DEBUG_EVENTS (("gdb: child_init_thread_list\n")); | |
1075 | init_thread_list (); | |
1076 | while (th->next != NULL) | |
1077 | { | |
1078 | thread_info *here = th->next; | |
1079 | th->next = here->next; | |
1080 | (void) close_handle (here->h); | |
1081 | free (here); | |
1082 | } | |
1083 | } | |
1084 | ||
1085 | /* Delete a thread from the list of threads */ | |
1086 | static void | |
1087 | child_delete_thread (DWORD id) | |
1088 | { | |
1089 | thread_info *th; | |
1090 | ||
1091 | if (info_verbose) | |
1092 | printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (id)); | |
1093 | delete_thread (id); | |
1094 | ||
1095 | for (th = &thread_head; | |
1096 | th->next != NULL && th->next->id != id; | |
1097 | th = th->next) | |
1098 | continue; | |
1099 | ||
1100 | if (th->next != NULL) | |
1101 | { | |
1102 | thread_info *here = th->next; | |
1103 | th->next = here->next; | |
1104 | close_handle (here->h); | |
1105 | free (here); | |
1106 | } | |
1107 | } | |
1108 | ||
1109 | static void | |
1110 | check (BOOL ok, const char *file, int line) | |
1111 | { | |
1112 | if (!ok) | |
1113 | printf_filtered ("error return %s:%d was %d\n", file, line, GetLastError ()); | |
1114 | } | |
1115 | ||
0f07afe1 CF |
1116 | static void |
1117 | do_child_fetch_inferior_registers (int r) | |
1118 | { | |
1119 | if (r >= 0) | |
1120 | { | |
1121 | supply_register (r, (char *) regptr (¤t_thread->context, r)); | |
1122 | } | |
1123 | else | |
1124 | { | |
1125 | for (r = 0; r < NUM_REGS; r++) | |
1126 | do_child_fetch_inferior_registers (r); | |
1127 | } | |
1128 | } | |
1129 | ||
1130 | static void | |
1131 | child_fetch_inferior_registers (int r) | |
1132 | { | |
1133 | current_thread = thread_rec (inferior_pid, TRUE); | |
1134 | do_child_fetch_inferior_registers (r); | |
1135 | } | |
1136 | ||
1137 | static void | |
1138 | do_child_store_inferior_registers (int r) | |
1139 | { | |
1140 | if (r >= 0) | |
1141 | read_register_gen (r, ((char *) ¤t_thread->context) + mappings[r]); | |
1142 | else | |
1143 | { | |
1144 | for (r = 0; r < NUM_REGS; r++) | |
1145 | do_child_store_inferior_registers (r); | |
1146 | } | |
1147 | } | |
1148 | ||
1149 | /* Store a new register value into the current thread context */ | |
1150 | static void | |
1151 | child_store_inferior_registers (int r) | |
1152 | { | |
1153 | current_thread = thread_rec (inferior_pid, TRUE); | |
1154 | do_child_store_inferior_registers (r); | |
1155 | } | |
1156 | ||
1157 | /* Wait for child to do something. Return pid of child, or -1 in case | |
1158 | of error; store status through argument pointer OURSTATUS. */ | |
1159 | ||
1160 | static int | |
1161 | handle_load_dll (PTR dummy) | |
1162 | { | |
1163 | LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll; | |
1164 | char dll_buf[MAX_PATH + 1]; | |
1165 | char *p, *bufp, *imgp, *dll_name, *dll_basename; | |
1166 | int len; | |
1167 | ||
1168 | dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0'; | |
1169 | if (!event->lpImageName) | |
1170 | return 1; | |
1171 | ||
1172 | len = 0; | |
1173 | for (bufp = dll_buf, imgp = event->lpImageName; | |
1174 | bufp < dll_buf + sizeof (dll_buf); | |
1175 | bufp += 16, imgp += 16) | |
1176 | { | |
1177 | gdb_wince_len nbytes = 0; | |
1178 | (void) read_process_memory (current_process_handle, | |
1179 | imgp, bufp, 16, &nbytes); | |
1180 | ||
1181 | if (!nbytes && bufp == dll_buf) | |
1182 | return 1; /* couldn't read it */ | |
1183 | for (p = bufp; p < bufp + nbytes; p++) | |
1184 | { | |
1185 | len++; | |
1186 | if (*p == '\0') | |
1187 | goto out; | |
1188 | if (event->fUnicode) | |
1189 | p++; | |
1190 | } | |
1191 | if (!nbytes) | |
1192 | break; | |
1193 | } | |
1194 | ||
1195 | out: | |
1196 | if (!len) | |
1197 | return 1; | |
61c37cee | 1198 | #if 0 |
0f07afe1 | 1199 | dll_buf[len] = '\0'; |
61c37cee | 1200 | #endif |
0f07afe1 CF |
1201 | dll_name = alloca (len); |
1202 | ||
1203 | if (!dll_name) | |
1204 | return 1; | |
1205 | ||
1206 | if (!event->fUnicode) | |
1207 | memcpy (dll_name, dll_buf, len); | |
1208 | else | |
1209 | WideCharToMultiByte (CP_ACP, 0, (LPCWSTR) dll_buf, len, | |
1210 | dll_name, len, 0, 0); | |
1211 | ||
1212 | while ((p = strchr (dll_name, '\\'))) | |
1213 | *p = '/'; | |
1214 | ||
1215 | /* FIXME!! It would be nice to define one symbol which pointed to the | |
1216 | front of the dll if we can't find any symbols. */ | |
1217 | ||
1218 | if (!(dll_basename = strrchr (dll_name, '/'))) | |
1219 | dll_basename = dll_name; | |
1220 | else | |
1221 | dll_basename++; | |
1222 | ||
1223 | /* The symbols in a dll are offset by 0x1000, which is the | |
1224 | the offset from 0 of the first byte in an image - because | |
1225 | of the file header and the section alignment. | |
1226 | ||
1227 | FIXME: Is this the real reason that we need the 0x1000 ? */ | |
1228 | ||
1229 | printf_unfiltered ("%x:%s", event->lpBaseOfDll, dll_name); | |
0f07afe1 CF |
1230 | printf_unfiltered ("\n"); |
1231 | ||
1232 | return 1; | |
1233 | } | |
1234 | ||
61c37cee | 1235 | /* Handle DEBUG_STRING output from child process. */ |
0f07afe1 CF |
1236 | static void |
1237 | handle_output_debug_string (struct target_waitstatus *ourstatus) | |
1238 | { | |
1239 | char p[256]; | |
1240 | char s[255]; | |
1241 | char *q; | |
1242 | gdb_wince_len nbytes_read; | |
1243 | gdb_wince_len nbytes = current_event.u.DebugString.nDebugStringLength; | |
1244 | ||
1245 | if (nbytes > 255) | |
1246 | nbytes = 255; | |
1247 | ||
1248 | memset (p, 0, sizeof (p)); | |
1249 | if (!read_process_memory (current_process_handle, | |
1250 | current_event.u.DebugString.lpDebugStringData, | |
1251 | &p, nbytes, &nbytes_read) | |
1252 | || !*p) | |
1253 | return; | |
1254 | ||
1255 | memset (s, 0, sizeof (s)); | |
1256 | WideCharToMultiByte (CP_ACP, 0, (LPCWSTR) p, (int) nbytes_read, s, | |
1257 | sizeof (s) - 1, NULL, NULL); | |
1258 | q = strchr (s, '\n'); | |
1259 | if (q != NULL) | |
1260 | { | |
1261 | *q = '\0'; | |
1262 | if (*--q = '\r') | |
1263 | *q = '\0'; | |
1264 | } | |
1265 | ||
1266 | warning (s); | |
61c37cee | 1267 | |
0f07afe1 CF |
1268 | return; |
1269 | } | |
1270 | ||
1271 | /* Handle target exceptions. */ | |
1272 | static int | |
1273 | handle_exception (struct target_waitstatus *ourstatus) | |
1274 | { | |
61c37cee | 1275 | #if 0 |
0f07afe1 CF |
1276 | if (current_event.u.Exception.dwFirstChance) |
1277 | return 0; | |
61c37cee | 1278 | #endif |
0f07afe1 CF |
1279 | |
1280 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
1281 | ||
0f07afe1 CF |
1282 | switch (current_event.u.Exception.ExceptionRecord.ExceptionCode) |
1283 | { | |
1284 | case EXCEPTION_ACCESS_VIOLATION: | |
1285 | DEBUG_EXCEPT (("gdb: Target exception ACCESS_VIOLATION at 0x%08x\n", | |
1286 | (unsigned) current_event.u.Exception.ExceptionRecord.ExceptionAddress)); | |
1287 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; | |
1288 | break; | |
1289 | case STATUS_STACK_OVERFLOW: | |
1290 | DEBUG_EXCEPT (("gdb: Target exception STACK_OVERFLOW at 0x%08x\n", | |
1291 | (unsigned) current_event.u.Exception.ExceptionRecord.ExceptionAddress)); | |
1292 | ourstatus->value.sig = TARGET_SIGNAL_SEGV; | |
1293 | break; | |
1294 | case EXCEPTION_BREAKPOINT: | |
1295 | DEBUG_EXCEPT (("gdb: Target exception BREAKPOINT at 0x%08x\n", | |
1296 | (unsigned) current_event.u.Exception.ExceptionRecord.ExceptionAddress)); | |
1297 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; | |
1298 | break; | |
1299 | case DBG_CONTROL_C: | |
1300 | DEBUG_EXCEPT (("gdb: Target exception CONTROL_C at 0x%08x\n", | |
1301 | (unsigned) current_event.u.Exception.ExceptionRecord.ExceptionAddress)); | |
1302 | ourstatus->value.sig = TARGET_SIGNAL_INT; | |
1303 | /* User typed CTRL-C. Continue with this status */ | |
1304 | last_sig = SIGINT; /* FIXME - should check pass state */ | |
1305 | break; | |
1306 | case EXCEPTION_SINGLE_STEP: | |
1307 | DEBUG_EXCEPT (("gdb: Target exception SINGLE_STEP at 0x%08x\n", | |
1308 | (unsigned) current_event.u.Exception.ExceptionRecord.ExceptionAddress)); | |
1309 | ourstatus->value.sig = TARGET_SIGNAL_TRAP; | |
1310 | break; | |
61c37cee CF |
1311 | case EXCEPTION_ILLEGAL_INSTRUCTION: |
1312 | DEBUG_EXCEPT (("gdb: Target exception SINGLE_ILL at 0x%08x\n", | |
1313 | current_event.u.Exception.ExceptionRecord.ExceptionAddress)); | |
1314 | ourstatus->value.sig = check_for_step (¤t_event, TARGET_SIGNAL_ILL); | |
1315 | break; | |
0f07afe1 CF |
1316 | default: |
1317 | /* This may be a structured exception handling exception. In | |
61c37cee CF |
1318 | that case, we want to let the program try to handle it, and |
1319 | only break if we see the exception a second time. */ | |
0f07afe1 CF |
1320 | |
1321 | printf_unfiltered ("gdb: unknown target exception 0x%08x at 0x%08x\n", | |
1322 | current_event.u.Exception.ExceptionRecord.ExceptionCode, | |
1323 | current_event.u.Exception.ExceptionRecord.ExceptionAddress); | |
1324 | ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN; | |
1325 | break; | |
1326 | } | |
1327 | exception_count++; | |
1328 | return 1; | |
1329 | } | |
1330 | ||
1331 | /* Resume all artificially suspended threads if we are continuing | |
1332 | execution */ | |
1333 | static BOOL | |
1334 | child_continue (DWORD continue_status, int id) | |
1335 | { | |
1336 | int i; | |
1337 | thread_info *th; | |
1338 | BOOL res; | |
1339 | ||
1340 | DEBUG_EVENTS (("ContinueDebugEvent (cpid=%d, ctid=%d, DBG_CONTINUE);\n", | |
1341 | (unsigned) current_event.dwProcessId, (unsigned) current_event.dwThreadId)); | |
1342 | res = continue_debug_event (current_event.dwProcessId, | |
1343 | current_event.dwThreadId, | |
1344 | continue_status); | |
1345 | if (res) | |
1346 | for (th = &thread_head; (th = th->next) != NULL;) | |
1347 | if (((id == -1) || (id == th->id)) && th->suspend_count) | |
1348 | { | |
1349 | for (i = 0; i < th->suspend_count; i++) | |
1350 | (void) resume_thread (th->h); | |
1351 | th->suspend_count = 0; | |
1352 | } | |
1353 | ||
1354 | return res; | |
1355 | } | |
1356 | ||
1357 | /* Get the next event from the child. Return 1 if the event requires | |
1358 | handling by WFI (or whatever). | |
1359 | */ | |
1360 | static int | |
61c37cee CF |
1361 | get_child_debug_event (int pid, struct target_waitstatus *ourstatus, |
1362 | DWORD target_event_code, int *retval) | |
0f07afe1 | 1363 | { |
61c37cee | 1364 | int breakout = 0; |
0f07afe1 | 1365 | BOOL debug_event; |
61c37cee CF |
1366 | DWORD continue_status, event_code; |
1367 | thread_info *th = NULL; | |
1368 | static thread_info dummy_thread_info; | |
0f07afe1 CF |
1369 | |
1370 | if (!(debug_event = wait_for_debug_event (¤t_event, 1000))) | |
1371 | { | |
61c37cee | 1372 | *retval = 0; |
0f07afe1 CF |
1373 | goto out; |
1374 | } | |
1375 | ||
0f07afe1 CF |
1376 | event_count++; |
1377 | continue_status = DBG_CONTINUE; | |
1378 | *retval = 0; | |
61c37cee CF |
1379 | |
1380 | event_code = current_event.dwDebugEventCode; | |
1381 | breakout = event_code == target_event_code; | |
1382 | ||
1383 | switch (event_code) | |
0f07afe1 CF |
1384 | { |
1385 | case CREATE_THREAD_DEBUG_EVENT: | |
1386 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n", | |
1387 | (unsigned) current_event.dwProcessId, | |
1388 | (unsigned) current_event.dwThreadId, | |
1389 | "CREATE_THREAD_DEBUG_EVENT")); | |
1390 | /* Record the existence of this thread */ | |
61c37cee CF |
1391 | th = child_add_thread (current_event.dwThreadId, |
1392 | current_event.u.CreateThread.hThread); | |
0f07afe1 CF |
1393 | if (info_verbose) |
1394 | printf_unfiltered ("[New %s]\n", | |
1395 | target_pid_to_str (current_event.dwThreadId)); | |
1396 | break; | |
1397 | ||
1398 | case EXIT_THREAD_DEBUG_EVENT: | |
1399 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
1400 | (unsigned) current_event.dwProcessId, | |
1401 | (unsigned) current_event.dwThreadId, | |
1402 | "EXIT_THREAD_DEBUG_EVENT")); | |
1403 | child_delete_thread (current_event.dwThreadId); | |
61c37cee | 1404 | th = &dummy_thread_info; |
0f07afe1 CF |
1405 | break; |
1406 | ||
1407 | case CREATE_PROCESS_DEBUG_EVENT: | |
1408 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
1409 | (unsigned) current_event.dwProcessId, | |
1410 | (unsigned) current_event.dwThreadId, | |
1411 | "CREATE_PROCESS_DEBUG_EVENT")); | |
1412 | current_process_handle = current_event.u.CreateProcessInfo.hProcess; | |
1413 | ||
1414 | main_thread_id = inferior_pid = current_event.dwThreadId; | |
1415 | /* Add the main thread */ | |
61c37cee CF |
1416 | th = child_add_thread (inferior_pid, |
1417 | current_event.u.CreateProcessInfo.hThread); | |
0f07afe1 CF |
1418 | break; |
1419 | ||
1420 | case EXIT_PROCESS_DEBUG_EVENT: | |
1421 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
1422 | (unsigned) current_event.dwProcessId, | |
1423 | (unsigned) current_event.dwThreadId, | |
1424 | "EXIT_PROCESS_DEBUG_EVENT")); | |
1425 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1426 | ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode; | |
1427 | close_handle (current_process_handle); | |
1428 | *retval = current_event.dwProcessId; | |
61c37cee CF |
1429 | breakout = 1; |
1430 | break; | |
0f07afe1 CF |
1431 | |
1432 | case LOAD_DLL_DEBUG_EVENT: | |
1433 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
1434 | (unsigned) current_event.dwProcessId, | |
1435 | (unsigned) current_event.dwThreadId, | |
1436 | "LOAD_DLL_DEBUG_EVENT")); | |
1437 | catch_errors (handle_load_dll, NULL, (char *) "", RETURN_MASK_ALL); | |
1438 | registers_changed (); /* mark all regs invalid */ | |
1439 | break; | |
1440 | ||
1441 | case UNLOAD_DLL_DEBUG_EVENT: | |
1442 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
1443 | (unsigned) current_event.dwProcessId, | |
1444 | (unsigned) current_event.dwThreadId, | |
1445 | "UNLOAD_DLL_DEBUG_EVENT")); | |
1446 | break; /* FIXME: don't know what to do here */ | |
1447 | ||
1448 | case EXCEPTION_DEBUG_EVENT: | |
1449 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
1450 | (unsigned) current_event.dwProcessId, | |
1451 | (unsigned) current_event.dwThreadId, | |
1452 | "EXCEPTION_DEBUG_EVENT")); | |
1453 | if (handle_exception (ourstatus)) | |
61c37cee CF |
1454 | *retval = current_event.dwThreadId; |
1455 | else | |
0f07afe1 | 1456 | { |
61c37cee CF |
1457 | continue_status = DBG_EXCEPTION_NOT_HANDLED; |
1458 | breakout = 0; | |
0f07afe1 | 1459 | } |
0f07afe1 CF |
1460 | break; |
1461 | ||
1462 | case OUTPUT_DEBUG_STRING_EVENT: /* message from the kernel */ | |
1463 | DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n", | |
1464 | (unsigned) current_event.dwProcessId, | |
1465 | (unsigned) current_event.dwThreadId, | |
1466 | "OUTPUT_DEBUG_STRING_EVENT")); | |
61c37cee | 1467 | handle_output_debug_string ( ourstatus); |
0f07afe1 CF |
1468 | break; |
1469 | default: | |
1470 | printf_unfiltered ("gdb: kernel event for pid=%d tid=%d\n", | |
1471 | current_event.dwProcessId, | |
1472 | current_event.dwThreadId); | |
1473 | printf_unfiltered (" unknown event code %d\n", | |
1474 | current_event.dwDebugEventCode); | |
1475 | break; | |
1476 | } | |
1477 | ||
61c37cee CF |
1478 | if (breakout) |
1479 | this_thread = current_thread = th ?: thread_rec (current_event.dwThreadId, TRUE); | |
1480 | else | |
1481 | CHECK (child_continue (continue_status, -1)); | |
0f07afe1 CF |
1482 | |
1483 | out: | |
1484 | return breakout; | |
1485 | } | |
1486 | ||
1487 | /* Wait for interesting events to occur in the target process. */ | |
1488 | static int | |
1489 | child_wait (int pid, struct target_waitstatus *ourstatus) | |
1490 | { | |
1491 | DWORD event_code; | |
1492 | int retval; | |
1493 | ||
1494 | /* We loop when we get a non-standard exception rather than return | |
1495 | with a SPURIOUS because resume can try and step or modify things, | |
1496 | which needs a current_thread->h. But some of these exceptions mark | |
1497 | the birth or death of threads, which mean that the current thread | |
1498 | isn't necessarily what you think it is. */ | |
1499 | ||
1500 | while (1) | |
61c37cee | 1501 | if (get_child_debug_event (pid, ourstatus, EXCEPTION_DEBUG_EVENT, &retval)) |
0f07afe1 CF |
1502 | return retval; |
1503 | else | |
1504 | { | |
1505 | int detach = 0; | |
1506 | ||
1507 | if (ui_loop_hook != NULL) | |
1508 | detach = ui_loop_hook (0); | |
1509 | ||
1510 | if (detach) | |
1511 | child_kill_inferior (); | |
1512 | } | |
1513 | } | |
1514 | ||
1515 | /* Print status information about what we're accessing. */ | |
1516 | ||
1517 | static void | |
fba45db2 | 1518 | child_files_info (struct target_ops *ignore) |
0f07afe1 CF |
1519 | { |
1520 | printf_unfiltered ("\tUsing the running image of child %s.\n", | |
1521 | target_pid_to_str (inferior_pid)); | |
1522 | } | |
1523 | ||
1524 | /* ARGSUSED */ | |
1525 | static void | |
fba45db2 | 1526 | child_open (char *arg, int from_tty) |
0f07afe1 CF |
1527 | { |
1528 | error ("Use the \"run\" command to start a child process."); | |
1529 | } | |
1530 | ||
1531 | #define FACTOR (0x19db1ded53ea710LL) | |
1532 | #define NSPERSEC 10000000 | |
1533 | ||
1534 | /* Convert a Win32 time to "UNIX" format. */ | |
1535 | long | |
1536 | to_time_t (FILETIME * ptr) | |
1537 | { | |
1538 | /* A file time is the number of 100ns since jan 1 1601 | |
1539 | stuffed into two long words. | |
1540 | A time_t is the number of seconds since jan 1 1970. */ | |
1541 | ||
1542 | long rem; | |
1543 | long long x = ((long long) ptr->dwHighDateTime << 32) + ((unsigned) ptr->dwLowDateTime); | |
1544 | x -= FACTOR; /* number of 100ns between 1601 and 1970 */ | |
1545 | rem = x % ((long long) NSPERSEC); | |
1546 | rem += (NSPERSEC / 2); | |
1547 | x /= (long long) NSPERSEC; /* number of 100ns in a second */ | |
1548 | x += (long long) (rem / NSPERSEC); | |
1549 | return x; | |
1550 | } | |
1551 | ||
1552 | /* Upload a file to the remote device depending on the user's | |
1553 | 'set remoteupload' specification. */ | |
1554 | char * | |
1555 | upload_to_device (const char *to, const char *from) | |
1556 | { | |
1557 | HANDLE h; | |
61c37cee | 1558 | const char *dir = remote_directory ?: "\\gdb"; |
0f07afe1 CF |
1559 | int len; |
1560 | static char *remotefile = NULL; | |
1561 | LPWSTR wstr; | |
1562 | char *p; | |
1563 | DWORD err; | |
1564 | const char *in_to = to; | |
61c37cee CF |
1565 | FILETIME crtime, actime, wrtime; |
1566 | time_t utime; | |
0f07afe1 CF |
1567 | struct stat st; |
1568 | int fd; | |
1569 | ||
1570 | /* Look for a path separator and only use trailing part. */ | |
1571 | while ((p = strpbrk (to, "/\\")) != NULL) | |
1572 | to = p + 1; | |
1573 | ||
1574 | if (!*to) | |
1575 | error ("no filename found to upload - %s.", in_to); | |
1576 | ||
1577 | len = strlen (dir) + strlen (to) + 2; | |
1578 | remotefile = (char *) realloc (remotefile, len); | |
1579 | strcpy (remotefile, dir); | |
1580 | strcat (remotefile, "\\"); | |
1581 | strcat (remotefile, to); | |
1582 | ||
1583 | if (upload_when == UPLOAD_NEVER) | |
1584 | return remotefile; /* Don't bother uploading. */ | |
1585 | ||
1586 | /* Open the source. */ | |
1587 | if ((fd = openp (getenv ("PATH"), TRUE, (char *) from, O_RDONLY, 0, NULL)) < 0) | |
1588 | error ("couldn't open %s", from); | |
1589 | ||
1590 | /* Get the time for later comparison. */ | |
1591 | if (fstat (fd, &st)) | |
1592 | st.st_mtime = (time_t) - 1; | |
1593 | ||
1594 | /* Always attempt to create the directory on the remote system. */ | |
1595 | wstr = towide (dir, NULL); | |
1596 | (void) CeCreateDirectory (wstr, NULL); | |
1597 | ||
1598 | /* Attempt to open the remote file, creating it if it doesn't exist. */ | |
1599 | wstr = towide (remotefile, NULL); | |
1600 | h = CeCreateFile (wstr, GENERIC_READ | GENERIC_WRITE, 0, NULL, | |
1601 | OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); | |
1602 | ||
1603 | /* Some kind of problem? */ | |
1604 | err = CeGetLastError (); | |
61c37cee CF |
1605 | if (h == NULL || h == INVALID_HANDLE_VALUE) |
1606 | error ("error opening file \"%s\". Windows error %d.", | |
0f07afe1 CF |
1607 | remotefile, err); |
1608 | ||
61c37cee CF |
1609 | CeGetFileTime (h, &crtime, &actime, &wrtime); |
1610 | utime = to_time_t (&wrtime); | |
1611 | #if 0 | |
1612 | if (utime < st.st_mtime) | |
1613 | { | |
1614 | char buf[80]; | |
1615 | strcpy (buf, ctime(&utime)); | |
1616 | printf ("%s < %s\n", buf, ctime(&st.st_mtime)); | |
1617 | } | |
1618 | #endif | |
0f07afe1 CF |
1619 | /* See if we need to upload the file. */ |
1620 | if (upload_when == UPLOAD_ALWAYS || | |
1621 | err != ERROR_ALREADY_EXISTS || | |
61c37cee CF |
1622 | !CeGetFileTime (h, &crtime, &actime, &wrtime) || |
1623 | to_time_t (&wrtime) < st.st_mtime) | |
0f07afe1 CF |
1624 | { |
1625 | DWORD nbytes; | |
1626 | char buf[4096]; | |
1627 | int n; | |
1628 | ||
1629 | /* Upload the file. */ | |
1630 | while ((n = read (fd, buf, sizeof (buf))) > 0) | |
1631 | if (!CeWriteFile (h, buf, (DWORD) n, &nbytes, NULL)) | |
1632 | error ("error writing to remote device - %d.", | |
1633 | CeGetLastError ()); | |
1634 | } | |
1635 | ||
1636 | close (fd); | |
61c37cee CF |
1637 | if (!CeCloseHandle (h)) |
1638 | error ("error closing remote file - %d.", CeGetLastError ()); | |
0f07afe1 CF |
1639 | |
1640 | return remotefile; | |
1641 | } | |
1642 | ||
1643 | /* Initialize the connection to the remote device. */ | |
1644 | static void | |
fba45db2 | 1645 | wince_initialize (void) |
0f07afe1 CF |
1646 | { |
1647 | int tmp; | |
1648 | char args[256]; | |
1649 | char *hostname; | |
1650 | struct sockaddr_in sin; | |
1651 | char *stub_file_name; | |
1652 | int s0; | |
1653 | PROCESS_INFORMATION pi; | |
1654 | ||
1655 | if (!connection_initialized) | |
1656 | switch (CeRapiInit ()) | |
1657 | { | |
1658 | case 0: | |
1659 | connection_initialized = 1; | |
1660 | break; | |
1661 | default: | |
1662 | CeRapiUninit (); | |
1663 | error ("Can't initialize connection to remote device.\n"); | |
1664 | break; | |
1665 | } | |
1666 | ||
1667 | /* Upload the stub to the handheld device. */ | |
1668 | stub_file_name = upload_to_device ("wince-stub.exe", WINCE_STUB); | |
1669 | strcpy (args, stub_file_name); | |
1670 | ||
1671 | if (remote_add_host) | |
1672 | { | |
1673 | strcat (args, " "); | |
1674 | hostname = strchr (args, '\0'); | |
1675 | if (gethostname (hostname, sizeof (args) - strlen (args))) | |
1676 | error ("couldn't get hostname of this system."); | |
1677 | } | |
1678 | ||
1679 | /* Get a socket. */ | |
1680 | if ((s0 = socket (AF_INET, SOCK_STREAM, 0)) < 0) | |
1681 | stub_error ("Couldn't connect to host system."); | |
1682 | ||
1683 | /* Allow rapid reuse of the port. */ | |
1684 | tmp = 1; | |
1685 | (void) setsockopt (s0, SOL_SOCKET, SO_REUSEADDR, (char *) &tmp, sizeof (tmp)); | |
1686 | ||
1687 | ||
1688 | /* Set up the information for connecting to the host gdb process. */ | |
1689 | memset (&sin, 0, sizeof (sin)); | |
1690 | sin.sin_family = AF_INET; | |
1691 | sin.sin_port = htons (7000); /* FIXME: This should be configurable */ | |
1692 | ||
1693 | if (bind (s0, (struct sockaddr *) &sin, sizeof (sin))) | |
1694 | error ("couldn't bind socket"); | |
1695 | ||
1696 | if (listen (s0, 1)) | |
1697 | error ("Couldn't open socket for listening.\n"); | |
1698 | ||
1699 | /* Start up the stub on the remote device. */ | |
1700 | if (!CeCreateProcess (towide (stub_file_name, NULL), towide (args, NULL), | |
1701 | NULL, NULL, 0, 0, NULL, NULL, NULL, &pi)) | |
1702 | error ("Unable to start remote stub '%s'. Windows CE error %d.", | |
1703 | stub_file_name, CeGetLastError ()); | |
1704 | ||
1705 | /* Wait for a connection */ | |
1706 | ||
1707 | if ((s = accept (s0, NULL, NULL)) < 0) | |
1708 | error ("couldn't set up server for connection."); | |
1709 | ||
1710 | close (s0); | |
1711 | } | |
1712 | ||
1713 | /* Start an inferior win32 child process and sets inferior_pid to its pid. | |
1714 | EXEC_FILE is the file to run. | |
1715 | ALLARGS is a string containing the arguments to the program. | |
1716 | ENV is the environment vector to pass. Errors reported with error(). */ | |
1717 | static void | |
1718 | child_create_inferior (char *exec_file, char *args, char **env) | |
1719 | { | |
1720 | PROCESS_INFORMATION pi; | |
1721 | struct target_waitstatus dummy; | |
1722 | int ret; | |
1723 | DWORD flags, event_code; | |
1724 | char *exec_and_args; | |
1725 | ||
1726 | if (!exec_file) | |
1727 | error ("No executable specified, use `target exec'.\n"); | |
1728 | ||
1729 | flags = DEBUG_PROCESS; | |
1730 | ||
1731 | wince_initialize (); /* Make sure we've got a connection. */ | |
1732 | if (!remote_dcache) | |
1733 | remote_dcache = dcache_init (remote_read_bytes, remote_write_bytes); | |
1734 | else | |
e99586d5 | 1735 | dcache_invd (remote_dcache); |
0f07afe1 CF |
1736 | |
1737 | exec_file = upload_to_device (exec_file, exec_file); | |
1738 | ||
1739 | while (*args == ' ') | |
1740 | args++; | |
1741 | ||
1742 | /* Allocate space for "command<sp>args" */ | |
1743 | if (*args == '\0') | |
1744 | { | |
1745 | exec_and_args = alloca (strlen (exec_file) + 1); | |
1746 | strcpy (exec_and_args, exec_file); | |
1747 | } | |
1748 | else | |
1749 | { | |
1750 | exec_and_args = alloca (strlen (exec_file + strlen (args) + 2)); | |
1751 | sprintf (exec_and_args, "%s %s", exec_file, args); | |
1752 | } | |
1753 | ||
1754 | memset (&pi, 0, sizeof (pi)); | |
1755 | /* Execute the process */ | |
1756 | if (!create_process (exec_file, exec_and_args, flags, &pi)) | |
1757 | error ("Error creating process %s, (error %d)\n", exec_file, GetLastError ()); | |
1758 | ||
1759 | exception_count = 0; | |
1760 | event_count = 0; | |
1761 | ||
1762 | current_process_handle = pi.hProcess; | |
1763 | current_event.dwProcessId = pi.dwProcessId; | |
1764 | memset (¤t_event, 0, sizeof (current_event)); | |
1765 | inferior_pid = current_event.dwThreadId = pi.dwThreadId; | |
1766 | push_target (&child_ops); | |
1767 | child_init_thread_list (); | |
1768 | child_add_thread (pi.dwThreadId, pi.hThread); | |
1769 | init_wait_for_inferior (); | |
1770 | clear_proceed_status (); | |
1771 | target_terminal_init (); | |
1772 | target_terminal_inferior (); | |
1773 | ||
0f07afe1 | 1774 | /* Run until process and threads are loaded */ |
61c37cee CF |
1775 | while (!get_child_debug_event (inferior_pid, &dummy, |
1776 | CREATE_PROCESS_DEBUG_EVENT, &ret)) | |
1777 | continue; | |
0f07afe1 CF |
1778 | |
1779 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_0, 0); | |
1780 | } | |
1781 | ||
1782 | /* Chile has gone bye-bye. */ | |
1783 | static void | |
fba45db2 | 1784 | child_mourn_inferior (void) |
0f07afe1 CF |
1785 | { |
1786 | (void) child_continue (DBG_CONTINUE, -1); | |
1787 | unpush_target (&child_ops); | |
1788 | stop_stub (); | |
1789 | CeRapiUninit (); | |
1790 | connection_initialized = 0; | |
1791 | generic_mourn_inferior (); | |
1792 | } | |
1793 | ||
1794 | /* Move memory from child to/from gdb. */ | |
1795 | int | |
1796 | child_xfer_memory (CORE_ADDR memaddr, char *our, int len, | |
1797 | int write, struct target_ops *target) | |
1798 | { | |
1799 | if (len <= 0) | |
1800 | return 0; | |
1801 | return dcache_xfer_memory (remote_dcache, memaddr, our, len, write); | |
1802 | } | |
1803 | ||
1804 | /* Terminate the process and wait for child to tell us it has completed. */ | |
1805 | void | |
1806 | child_kill_inferior (void) | |
1807 | { | |
1808 | CHECK (terminate_process (current_process_handle)); | |
1809 | ||
1810 | for (;;) | |
1811 | { | |
1812 | if (!child_continue (DBG_CONTINUE, -1)) | |
1813 | break; | |
1814 | if (!wait_for_debug_event (¤t_event, INFINITE)) | |
1815 | break; | |
1816 | if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT) | |
1817 | break; | |
1818 | } | |
1819 | ||
1820 | CHECK (close_handle (current_process_handle)); | |
1821 | close_handle (current_thread->h); | |
1822 | target_mourn_inferior (); /* or just child_mourn_inferior? */ | |
1823 | } | |
1824 | ||
0f07afe1 CF |
1825 | /* Resume the child after an exception. */ |
1826 | void | |
1827 | child_resume (int pid, int step, enum target_signal sig) | |
1828 | { | |
1829 | thread_info *th; | |
1830 | DWORD continue_status = last_sig > 0 && last_sig < NSIG ? | |
1831 | DBG_EXCEPTION_NOT_HANDLED : DBG_CONTINUE; | |
1832 | ||
1833 | DEBUG_EXEC (("gdb: child_resume (pid=%d, step=%d, sig=%d);\n", | |
1834 | pid, step, sig)); | |
1835 | ||
1836 | /* Get context for currently selected thread */ | |
1837 | th = thread_rec (current_event.dwThreadId, FALSE); | |
1838 | ||
1839 | if (th->context.ContextFlags) | |
1840 | { | |
1841 | CHECK (set_thread_context (th->h, &th->context)); | |
1842 | th->context.ContextFlags = 0; | |
1843 | } | |
1844 | ||
e99586d5 | 1845 | dcache_invd (remote_dcache); |
0f07afe1 CF |
1846 | |
1847 | /* Allow continuing with the same signal that interrupted us. | |
1848 | Otherwise complain. */ | |
1849 | if (sig && sig != last_sig) | |
1850 | fprintf_unfiltered (gdb_stderr, "Can't send signals to the child. signal %d\n", sig); | |
1851 | ||
1852 | last_sig = 0; | |
1853 | child_continue (continue_status, pid); | |
1854 | } | |
1855 | ||
1856 | static void | |
fba45db2 | 1857 | child_prepare_to_store (void) |
0f07afe1 CF |
1858 | { |
1859 | /* Do nothing, since we can store individual regs */ | |
1860 | } | |
1861 | ||
1862 | static int | |
fba45db2 | 1863 | child_can_run (void) |
0f07afe1 CF |
1864 | { |
1865 | return 1; | |
1866 | } | |
1867 | ||
1868 | static void | |
fba45db2 | 1869 | child_close (void) |
0f07afe1 CF |
1870 | { |
1871 | DEBUG_EVENTS (("gdb: child_close, inferior_pid=%d\n", inferior_pid)); | |
1872 | } | |
1873 | ||
1874 | /* Explicitly upload file to remotedir */ | |
1875 | ||
1876 | static void | |
1877 | child_load (char *file, int from_tty) | |
1878 | { | |
1879 | upload_to_device (file, file); | |
1880 | } | |
1881 | ||
1882 | struct target_ops child_ops; | |
1883 | ||
1884 | static void | |
1885 | init_child_ops (void) | |
1886 | { | |
1887 | memset (&child_ops, 0, sizeof (child_ops)); | |
1888 | child_ops.to_shortname = (char *) "child"; | |
1889 | child_ops.to_longname = (char *) "Windows CE process"; | |
1890 | child_ops.to_doc = (char *) "Windows CE process (started by the \"run\" command)."; | |
1891 | child_ops.to_open = child_open; | |
1892 | child_ops.to_close = child_close; | |
1893 | child_ops.to_resume = child_resume; | |
1894 | child_ops.to_wait = child_wait; | |
1895 | child_ops.to_fetch_registers = child_fetch_inferior_registers; | |
1896 | child_ops.to_store_registers = child_store_inferior_registers; | |
1897 | child_ops.to_prepare_to_store = child_prepare_to_store; | |
1898 | child_ops.to_xfer_memory = child_xfer_memory; | |
1899 | child_ops.to_files_info = child_files_info; | |
1900 | child_ops.to_insert_breakpoint = memory_insert_breakpoint; | |
1901 | child_ops.to_remove_breakpoint = memory_remove_breakpoint; | |
1902 | child_ops.to_terminal_init = terminal_init_inferior; | |
1903 | child_ops.to_terminal_inferior = terminal_inferior; | |
1904 | child_ops.to_terminal_ours_for_output = terminal_ours_for_output; | |
1905 | child_ops.to_terminal_ours = terminal_ours; | |
1906 | child_ops.to_terminal_info = child_terminal_info; | |
1907 | child_ops.to_kill = child_kill_inferior; | |
1908 | child_ops.to_load = child_load; | |
1909 | child_ops.to_create_inferior = child_create_inferior; | |
1910 | child_ops.to_mourn_inferior = child_mourn_inferior; | |
1911 | child_ops.to_can_run = child_can_run; | |
1912 | child_ops.to_thread_alive = win32_child_thread_alive; | |
1913 | child_ops.to_stratum = process_stratum; | |
1914 | child_ops.to_has_all_memory = 1; | |
1915 | child_ops.to_has_memory = 1; | |
1916 | child_ops.to_has_stack = 1; | |
1917 | child_ops.to_has_registers = 1; | |
1918 | child_ops.to_has_execution = 1; | |
1919 | child_ops.to_sections = 0; | |
1920 | child_ops.to_sections_end = 0; | |
1921 | child_ops.to_magic = OPS_MAGIC; | |
1922 | } | |
1923 | ||
1924 | ||
1925 | /* Handle 'set remoteupload' parameter. */ | |
1926 | ||
1927 | #define replace_upload(what) \ | |
61c37cee CF |
1928 | upload_when = what; \ |
1929 | remote_upload = realloc (remote_upload, strlen (upload_options[upload_when].name) + 1); \ | |
0f07afe1 CF |
1930 | strcpy (remote_upload, upload_options[upload_when].name); |
1931 | ||
1932 | static void | |
1933 | set_upload_type (char *ignore, int from_tty) | |
1934 | { | |
1935 | int i, len; | |
1936 | char *bad_option; | |
1937 | ||
1938 | if (!remote_upload || !remote_upload[0]) | |
1939 | { | |
1940 | replace_upload (UPLOAD_NEWER); | |
1941 | if (from_tty) | |
1942 | printf_unfiltered ("Upload upload_options are: always, newer, never.\n"); | |
1943 | return; | |
1944 | } | |
1945 | ||
1946 | len = strlen (remote_upload); | |
1947 | for (i = 0; i < (sizeof (upload_options) / sizeof (upload_options[0])); i++) | |
1948 | if (len >= upload_options[i].abbrev && | |
1949 | strncasecmp (remote_upload, upload_options[i].name, len) == 0) | |
1950 | { | |
61c37cee | 1951 | replace_upload (i); |
0f07afe1 CF |
1952 | return; |
1953 | } | |
1954 | ||
1955 | bad_option = remote_upload; | |
1956 | replace_upload (UPLOAD_NEWER); | |
1957 | error ("Unknown upload type: %s.", bad_option); | |
1958 | } | |
1959 | ||
1960 | void | |
fba45db2 | 1961 | _initialize_inftarg (void) |
0f07afe1 CF |
1962 | { |
1963 | struct cmd_list_element *set; | |
1964 | init_child_ops (); | |
1965 | ||
1966 | add_show_from_set | |
1967 | (add_set_cmd ((char *) "remotedirectory", no_class, | |
1968 | var_string_noescape, (char *) &remote_directory, | |
1969 | (char *) "Set directory for remote upload.\n", | |
1970 | &setlist), | |
1971 | &showlist); | |
1972 | remote_directory = xstrdup (remote_directory); | |
1973 | ||
1974 | set = add_set_cmd ((char *) "remoteupload", no_class, | |
1975 | var_string_noescape, (char *) &remote_upload, | |
1976 | (char *) "Set how to upload executables to remote device.\n", | |
1977 | &setlist); | |
1978 | add_show_from_set (set, &showlist); | |
1979 | set->function.cfunc = set_upload_type; | |
1980 | set_upload_type (NULL, 0); | |
1981 | set_dcache_state (1); | |
1982 | ||
1983 | add_show_from_set | |
1984 | (add_set_cmd ((char *) "debugexec", class_support, var_boolean, | |
1985 | (char *) &debug_exec, | |
1986 | (char *) "Set whether to display execution in child process.", | |
1987 | &setlist), | |
1988 | &showlist); | |
1989 | ||
1990 | add_show_from_set | |
1991 | (add_set_cmd ((char *) "remoteaddhost", class_support, var_boolean, | |
1992 | (char *) &remote_add_host, | |
1993 | (char *) "Set whether to add this host to remote stub arguments for\n | |
1994 | debugging over a network.", &setlist), | |
1995 | &showlist); | |
1996 | ||
1997 | add_show_from_set | |
1998 | (add_set_cmd ((char *) "debugevents", class_support, var_boolean, | |
1999 | (char *) &debug_events, | |
2000 | (char *) "Set whether to display kernel events in child process.", | |
2001 | &setlist), | |
2002 | &showlist); | |
2003 | ||
2004 | add_show_from_set | |
2005 | (add_set_cmd ((char *) "debugmemory", class_support, var_boolean, | |
2006 | (char *) &debug_memory, | |
2007 | (char *) "Set whether to display memory accesses in child process.", | |
2008 | &setlist), | |
2009 | &showlist); | |
2010 | ||
2011 | add_show_from_set | |
2012 | (add_set_cmd ((char *) "debugexceptions", class_support, var_boolean, | |
2013 | (char *) &debug_exceptions, | |
2014 | (char *) "Set whether to display kernel exceptions in child process.", | |
2015 | &setlist), | |
2016 | &showlist); | |
2017 | ||
2018 | add_target (&child_ops); | |
2019 | } | |
2020 | ||
2021 | /* Determine if the thread referenced by "pid" is alive | |
2022 | by "polling" it. If WaitForSingleObject returns WAIT_OBJECT_0 | |
2023 | it means that the pid has died. Otherwise it is assumed to be alive. */ | |
2024 | static int | |
2025 | win32_child_thread_alive (int pid) | |
2026 | { | |
2027 | return thread_alive (thread_rec (pid, FALSE)->h); | |
2028 | } | |
2029 | ||
2030 | /* Convert pid to printable format. */ | |
2031 | char * | |
2032 | cygwin_pid_to_str (int pid) | |
2033 | { | |
2034 | static char buf[80]; | |
2035 | if (pid == current_event.dwProcessId) | |
2036 | sprintf (buf, "process %d", pid); | |
2037 | else | |
2038 | sprintf (buf, "thread %d.0x%x", (unsigned) current_event.dwProcessId, pid); | |
2039 | return buf; | |
2040 | } |