| 1 | /* wince-stub.c -- debugging stub for a Windows CE device |
| 2 | |
| 3 | Copyright (C) 1999, 2000 Free Software Foundation, Inc. |
| 4 | Contributed by Cygnus Solutions, A Red Hat Company. |
| 5 | |
| 6 | This file is part of GDB. |
| 7 | |
| 8 | This program is free software; you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation; either version 2 of the License, or |
| 11 | (at your option) any later version. |
| 12 | |
| 13 | This program is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without eve nthe implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with this program; if not, write to the Free Software |
| 20 | Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| 21 | Boston, MA 02110-1301, USA. |
| 22 | */ |
| 23 | |
| 24 | /* by Christopher Faylor (cgf@cygnus.com) */ |
| 25 | |
| 26 | #include <stdarg.h> |
| 27 | #include <windows.h> |
| 28 | #include <winsock.h> |
| 29 | #include "wince-stub.h" |
| 30 | |
| 31 | #define MALLOC(n) (void *) LocalAlloc (LMEM_MOVEABLE | LMEM_ZEROINIT, (UINT)(n)) |
| 32 | #define REALLOC(s, n) (void *) LocalReAlloc ((HLOCAL)(s), (UINT)(n), LMEM_MOVEABLE) |
| 33 | #define FREE(s) LocalFree ((HLOCAL)(s)) |
| 34 | |
| 35 | static int skip_next_id = 0; /* Don't read next API code from socket */ |
| 36 | |
| 37 | /* v-style interface for handling varying argument list error messages. |
| 38 | Displays the error message in a dialog box and exits when user clicks |
| 39 | on OK. */ |
| 40 | static void |
| 41 | vstub_error (LPCWSTR fmt, va_list args) |
| 42 | { |
| 43 | WCHAR buf[4096]; |
| 44 | wvsprintfW (buf, fmt, args); |
| 45 | |
| 46 | MessageBoxW (NULL, buf, L"GDB", MB_ICONERROR); |
| 47 | WSACleanup (); |
| 48 | ExitThread (1); |
| 49 | } |
| 50 | |
| 51 | /* The standard way to display an error message and exit. */ |
| 52 | static void |
| 53 | stub_error (LPCWSTR fmt, ...) |
| 54 | { |
| 55 | va_list args; |
| 56 | va_start (args, fmt); |
| 57 | vstub_error (fmt, args); |
| 58 | } |
| 59 | |
| 60 | /* Allocate a limited pool of memory, reallocating over unused |
| 61 | buffers. This assumes that there will never be more than four |
| 62 | "buffers" required which, so far, is a safe assumption. */ |
| 63 | static LPVOID |
| 64 | mempool (unsigned int len) |
| 65 | { |
| 66 | static int outn = -1; |
| 67 | static LPWSTR outs[4] = {NULL, NULL, NULL, NULL}; |
| 68 | |
| 69 | if (++outn >= (sizeof (outs) / sizeof (outs[0]))) |
| 70 | outn = 0; |
| 71 | |
| 72 | /* Allocate space for the converted string, reusing any previously allocated |
| 73 | space, if applicable. */ |
| 74 | if (outs[outn]) |
| 75 | FREE (outs[outn]); |
| 76 | outs[outn] = (LPWSTR) MALLOC (len); |
| 77 | |
| 78 | return outs[outn]; |
| 79 | } |
| 80 | |
| 81 | /* Standard "oh well" can't communicate error. Someday this might attempt |
| 82 | synchronization. */ |
| 83 | static void |
| 84 | attempt_resync (LPCWSTR huh, int s) |
| 85 | { |
| 86 | stub_error (L"lost synchronization with host attempting %s. Error %d", huh, WSAGetLastError ()); |
| 87 | } |
| 88 | |
| 89 | /* Read arbitrary stuff from a socket. */ |
| 90 | static int |
| 91 | sockread (LPCWSTR huh, int s, void *str, size_t n) |
| 92 | { |
| 93 | for (;;) |
| 94 | { |
| 95 | if (recv (s, str, n, 0) == (int) n) |
| 96 | return n; |
| 97 | attempt_resync (huh, s); |
| 98 | } |
| 99 | } |
| 100 | |
| 101 | /* Write arbitrary stuff to a socket. */ |
| 102 | static int |
| 103 | sockwrite (LPCWSTR huh, int s, const void *str, size_t n) |
| 104 | { |
| 105 | for (;;) |
| 106 | { |
| 107 | if (send (s, str, n, 0) == (int) n) |
| 108 | return n; |
| 109 | attempt_resync (huh, s); |
| 110 | } |
| 111 | } |
| 112 | |
| 113 | /* Get a an ID (possibly) and a DWORD from the host gdb. |
| 114 | Don't bother with the id if the main loop has already |
| 115 | read it. */ |
| 116 | static DWORD |
| 117 | getdword (LPCWSTR huh, int s, gdb_wince_id what_this) |
| 118 | { |
| 119 | DWORD n; |
| 120 | gdb_wince_id what; |
| 121 | |
| 122 | if (skip_next_id) |
| 123 | skip_next_id = 0; |
| 124 | else |
| 125 | do |
| 126 | if (sockread (huh, s, &what, sizeof (what)) != sizeof (what)) |
| 127 | stub_error (L"error getting record type from host - %s.", huh); |
| 128 | while (what_this != what); |
| 129 | |
| 130 | if (sockread (huh, s, &n, sizeof (n)) != sizeof (n)) |
| 131 | stub_error (L"error getting %s from host.", huh); |
| 132 | |
| 133 | return n; |
| 134 | } |
| 135 | |
| 136 | /* Get a an ID (possibly) and a WORD from the host gdb. |
| 137 | Don't bother with the id if the main loop has already |
| 138 | read it. */ |
| 139 | static WORD |
| 140 | getword (LPCWSTR huh, int s, gdb_wince_id what_this) |
| 141 | { |
| 142 | WORD n; |
| 143 | gdb_wince_id what; |
| 144 | |
| 145 | if (skip_next_id) |
| 146 | skip_next_id = 0; |
| 147 | else |
| 148 | do |
| 149 | if (sockread (huh, s, &what, sizeof (what)) != sizeof (what)) |
| 150 | stub_error (L"error getting record type from host - %s.", huh); |
| 151 | while (what_this != what); |
| 152 | |
| 153 | if (sockread (huh, s, &n, sizeof (n)) != sizeof (n)) |
| 154 | stub_error (L"error getting %s from host.", huh); |
| 155 | |
| 156 | return n; |
| 157 | } |
| 158 | |
| 159 | /* Handy defines for getting various types of values. */ |
| 160 | #define gethandle(huh, s, what) (HANDLE) getdword ((huh), (s), (what)) |
| 161 | #define getpvoid(huh, s, what) (LPVOID) getdword ((huh), (s), (what)) |
| 162 | #define getlen(huh, s, what) (gdb_wince_len) getword ((huh), (s), (what)) |
| 163 | |
| 164 | /* Get an arbitrary block of memory from the gdb host. This comes in |
| 165 | two chunks an id/dword representing the length and the stream of memory |
| 166 | itself. Returns a pointer, allocated via mempool, to a memory buffer. */ |
| 167 | static LPWSTR |
| 168 | getmemory (LPCWSTR huh, int s, gdb_wince_id what, gdb_wince_len *inlen) |
| 169 | { |
| 170 | LPVOID p; |
| 171 | gdb_wince_len dummy; |
| 172 | |
| 173 | if (!inlen) |
| 174 | inlen = &dummy; |
| 175 | |
| 176 | *inlen = getlen (huh, s, what); |
| 177 | |
| 178 | p = mempool ((unsigned int) *inlen); /* FIXME: check for error */ |
| 179 | |
| 180 | if ((gdb_wince_len) sockread (huh, s, p, *inlen) != *inlen) |
| 181 | stub_error (L"error getting string from host."); |
| 182 | |
| 183 | return p; |
| 184 | } |
| 185 | |
| 186 | /* Output an id/dword to the host */ |
| 187 | static void |
| 188 | putdword (LPCWSTR huh, int s, gdb_wince_id what, DWORD n) |
| 189 | { |
| 190 | if (sockwrite (huh, s, &what, sizeof (what)) != sizeof (what)) |
| 191 | stub_error (L"error writing record id for %s to host.", huh); |
| 192 | if (sockwrite (huh, s, &n, sizeof (n)) != sizeof (n)) |
| 193 | stub_error (L"error writing %s to host.", huh); |
| 194 | } |
| 195 | |
| 196 | /* Output an id/word to the host */ |
| 197 | static void |
| 198 | putword (LPCWSTR huh, int s, gdb_wince_id what, WORD n) |
| 199 | { |
| 200 | if (sockwrite (huh, s, &what, sizeof (what)) != sizeof (what)) |
| 201 | stub_error (L"error writing record id for %s to host.", huh); |
| 202 | if (sockwrite (huh, s, &n, sizeof (n)) != sizeof (n)) |
| 203 | stub_error (L"error writing %s to host.", huh); |
| 204 | } |
| 205 | |
| 206 | /* Convenience define for outputting a "gdb_wince_len" type. */ |
| 207 | #define putlen(huh, s, what, n) putword ((huh), (s), (what), (gdb_wince_len) (n)) |
| 208 | |
| 209 | /* Put an arbitrary block of memory to the gdb host. This comes in |
| 210 | two chunks an id/dword representing the length and the stream of memory |
| 211 | itself. */ |
| 212 | static void |
| 213 | putmemory (LPCWSTR huh, int s, gdb_wince_id what, const void *mem, gdb_wince_len len) |
| 214 | { |
| 215 | putlen (huh, s, what, len); |
| 216 | if (((short) len > 0) && (gdb_wince_len) sockwrite (huh, s, mem, len) != len) |
| 217 | stub_error (L"error writing memory to host."); |
| 218 | } |
| 219 | |
| 220 | /* Output the result of an operation to the host. If res != 0, sends a block of |
| 221 | memory starting at mem of len bytes. If res == 0, sends -GetLastError () and |
| 222 | avoids sending the mem. */ |
| 223 | static void |
| 224 | putresult (LPCWSTR huh, gdb_wince_result res, int s, gdb_wince_id what, const void *mem, gdb_wince_len len) |
| 225 | { |
| 226 | if (!res) |
| 227 | len = -(int) GetLastError (); |
| 228 | putmemory (huh, s, what, mem, len); |
| 229 | } |
| 230 | |
| 231 | static HANDLE curproc; /* Currently unused, but nice for debugging */ |
| 232 | |
| 233 | /* Emulate CreateProcess. Returns &pi if no error. */ |
| 234 | static void |
| 235 | create_process (int s) |
| 236 | { |
| 237 | LPWSTR exec_file = getmemory (L"CreateProcess exec_file", s, GDB_CREATEPROCESS, NULL); |
| 238 | LPWSTR args = getmemory (L"CreateProcess args", s, GDB_CREATEPROCESS, NULL); |
| 239 | DWORD flags = getdword (L"CreateProcess flags", s, GDB_CREATEPROCESS); |
| 240 | PROCESS_INFORMATION pi; |
| 241 | gdb_wince_result res; |
| 242 | |
| 243 | res = CreateProcessW (exec_file, |
| 244 | args, /* command line */ |
| 245 | NULL, /* Security */ |
| 246 | NULL, /* thread */ |
| 247 | FALSE, /* inherit handles */ |
| 248 | flags, /* start flags */ |
| 249 | NULL, |
| 250 | NULL, /* current directory */ |
| 251 | NULL, |
| 252 | &pi); |
| 253 | putresult (L"CreateProcess", res, s, GDB_CREATEPROCESS, &pi, sizeof (pi)); |
| 254 | curproc = pi.hProcess; |
| 255 | } |
| 256 | |
| 257 | /* Emulate TerminateProcess. Returns return value of TerminateProcess if |
| 258 | no error. |
| 259 | *** NOTE: For some unknown reason, TerminateProcess seems to always return |
| 260 | an ACCESS_DENIED (on Windows CE???) error. So, force a TRUE value for now. */ |
| 261 | static void |
| 262 | terminate_process (int s) |
| 263 | { |
| 264 | gdb_wince_result res; |
| 265 | HANDLE h = gethandle (L"TerminateProcess handle", s, GDB_TERMINATEPROCESS); |
| 266 | |
| 267 | res = TerminateProcess (h, 0) || 1; /* Doesn't seem to work on SH so default to TRUE */ |
| 268 | putresult (L"Terminate process result", res, s, GDB_TERMINATEPROCESS, |
| 269 | &res, sizeof (res)); |
| 270 | } |
| 271 | |
| 272 | static int stepped = 0; |
| 273 | /* Handle single step instruction. FIXME: unneded? */ |
| 274 | static void |
| 275 | flag_single_step (int s) |
| 276 | { |
| 277 | stepped = 1; |
| 278 | skip_next_id = 0; |
| 279 | } |
| 280 | |
| 281 | struct skipper |
| 282 | { |
| 283 | wchar_t *s; |
| 284 | int nskip; |
| 285 | } skippy[] = |
| 286 | { |
| 287 | {L"Undefined Instruction:", 1}, |
| 288 | {L"Data Abort:", 2}, |
| 289 | {NULL, 0} |
| 290 | }; |
| 291 | |
| 292 | static int |
| 293 | skip_message (DEBUG_EVENT *ev) |
| 294 | { |
| 295 | char s[80]; |
| 296 | DWORD nread; |
| 297 | struct skipper *skp; |
| 298 | int nbytes = ev->u.DebugString.nDebugStringLength; |
| 299 | |
| 300 | if (nbytes > sizeof(s)) |
| 301 | nbytes = sizeof(s); |
| 302 | |
| 303 | memset (s, 0, sizeof (s)); |
| 304 | if (!ReadProcessMemory (curproc, ev->u.DebugString.lpDebugStringData, |
| 305 | s, nbytes, &nread)) |
| 306 | return 0; |
| 307 | |
| 308 | for (skp = skippy; skp->s != NULL; skp++) |
| 309 | if (wcsncmp ((wchar_t *) s, skp->s, wcslen (skp->s)) == 0) |
| 310 | return skp->nskip; |
| 311 | |
| 312 | return 0; |
| 313 | } |
| 314 | |
| 315 | /* Emulate WaitForDebugEvent. Returns the debug event on success. */ |
| 316 | static void |
| 317 | wait_for_debug_event (int s) |
| 318 | { |
| 319 | DWORD ms = getdword (L"WaitForDebugEvent ms", s, GDB_WAITFORDEBUGEVENT); |
| 320 | gdb_wince_result res; |
| 321 | DEBUG_EVENT ev; |
| 322 | static int skip_next = 0; |
| 323 | |
| 324 | for (;;) |
| 325 | { |
| 326 | res = WaitForDebugEvent (&ev, ms); |
| 327 | |
| 328 | if (ev.dwDebugEventCode == OUTPUT_DEBUG_STRING_EVENT) |
| 329 | { |
| 330 | if (skip_next) |
| 331 | { |
| 332 | skip_next--; |
| 333 | goto ignore; |
| 334 | } |
| 335 | if (skip_next = skip_message (&ev)) |
| 336 | goto ignore; |
| 337 | } |
| 338 | |
| 339 | putresult (L"WaitForDebugEvent event", res, s, GDB_WAITFORDEBUGEVENT, |
| 340 | &ev, sizeof (ev)); |
| 341 | break; |
| 342 | |
| 343 | ignore: |
| 344 | ContinueDebugEvent (ev.dwProcessId, ev.dwThreadId, DBG_CONTINUE); |
| 345 | } |
| 346 | |
| 347 | return; |
| 348 | } |
| 349 | |
| 350 | /* Emulate GetThreadContext. Returns CONTEXT structure on success. */ |
| 351 | static void |
| 352 | get_thread_context (int s) |
| 353 | { |
| 354 | CONTEXT c; |
| 355 | HANDLE h = gethandle (L"GetThreadContext handle", s, GDB_GETTHREADCONTEXT); |
| 356 | gdb_wince_result res; |
| 357 | |
| 358 | memset (&c, 0, sizeof (c)); |
| 359 | c.ContextFlags = getdword (L"GetThreadContext flags", s, GDB_GETTHREADCONTEXT); |
| 360 | |
| 361 | res = (gdb_wince_result) GetThreadContext (h, &c); |
| 362 | putresult (L"GetThreadContext data", res, s, GDB_GETTHREADCONTEXT, |
| 363 | &c, sizeof (c)); |
| 364 | } |
| 365 | |
| 366 | /* Emulate GetThreadContext. Returns success of SetThreadContext. */ |
| 367 | static void |
| 368 | set_thread_context (int s) |
| 369 | { |
| 370 | gdb_wince_result res; |
| 371 | HANDLE h = gethandle (L"SetThreadContext handle", s, GDB_SETTHREADCONTEXT); |
| 372 | LPCONTEXT pc = (LPCONTEXT) getmemory (L"SetThreadContext context", s, |
| 373 | GDB_SETTHREADCONTEXT, NULL); |
| 374 | |
| 375 | res = SetThreadContext (h, pc); |
| 376 | putresult (L"SetThreadContext result", res, s, GDB_SETTHREADCONTEXT, |
| 377 | &res, sizeof (res)); |
| 378 | } |
| 379 | |
| 380 | /* Emulate ReadProcessMemory. Returns memory read on success. */ |
| 381 | static void |
| 382 | read_process_memory (int s) |
| 383 | { |
| 384 | HANDLE h = gethandle (L"ReadProcessMemory handle", s, GDB_READPROCESSMEMORY); |
| 385 | LPVOID p = getpvoid (L"ReadProcessMemory base", s, GDB_READPROCESSMEMORY); |
| 386 | gdb_wince_len len = getlen (L"ReadProcessMemory size", s, GDB_READPROCESSMEMORY); |
| 387 | LPVOID buf = mempool ((unsigned int) len); |
| 388 | DWORD outlen; |
| 389 | gdb_wince_result res; |
| 390 | |
| 391 | outlen = 0; |
| 392 | res = (gdb_wince_result) ReadProcessMemory (h, p, buf, len, &outlen); |
| 393 | putresult (L"ReadProcessMemory data", res, s, GDB_READPROCESSMEMORY, |
| 394 | buf, (gdb_wince_len) outlen); |
| 395 | } |
| 396 | |
| 397 | /* Emulate WriteProcessMemory. Returns WriteProcessMemory success. */ |
| 398 | static void |
| 399 | write_process_memory (int s) |
| 400 | { |
| 401 | HANDLE h = gethandle (L"WriteProcessMemory handle", s, GDB_WRITEPROCESSMEMORY); |
| 402 | LPVOID p = getpvoid (L"WriteProcessMemory base", s, GDB_WRITEPROCESSMEMORY); |
| 403 | gdb_wince_len len; |
| 404 | LPVOID buf = getmemory (L"WriteProcessMemory buf", s, GDB_WRITEPROCESSMEMORY, &len); |
| 405 | DWORD outlen; |
| 406 | gdb_wince_result res; |
| 407 | |
| 408 | outlen = 0; |
| 409 | res = WriteProcessMemory (h, p, buf, (DWORD) len, &outlen); |
| 410 | putresult (L"WriteProcessMemory data", res, s, GDB_WRITEPROCESSMEMORY, |
| 411 | (gdb_wince_len *) & outlen, sizeof (gdb_wince_len)); |
| 412 | } |
| 413 | |
| 414 | /* Return non-zero to gdb host if given thread is alive. */ |
| 415 | static void |
| 416 | thread_alive (int s) |
| 417 | { |
| 418 | HANDLE h = gethandle (L"ThreadAlive handle", s, GDB_THREADALIVE); |
| 419 | gdb_wince_result res; |
| 420 | |
| 421 | res = WaitForSingleObject (h, 0) == WAIT_OBJECT_0 ? 1 : 0; |
| 422 | putresult (L"WriteProcessMemory data", res, s, GDB_THREADALIVE, |
| 423 | &res, sizeof (res)); |
| 424 | } |
| 425 | |
| 426 | /* Emulate SuspendThread. Returns value returned from SuspendThread. */ |
| 427 | static void |
| 428 | suspend_thread (int s) |
| 429 | { |
| 430 | DWORD res; |
| 431 | HANDLE h = gethandle (L"SuspendThread handle", s, GDB_SUSPENDTHREAD); |
| 432 | res = SuspendThread (h); |
| 433 | putdword (L"SuspendThread result", s, GDB_SUSPENDTHREAD, res); |
| 434 | } |
| 435 | |
| 436 | /* Emulate ResumeThread. Returns value returned from ResumeThread. */ |
| 437 | static void |
| 438 | resume_thread (int s) |
| 439 | { |
| 440 | DWORD res; |
| 441 | HANDLE h = gethandle (L"ResumeThread handle", s, GDB_RESUMETHREAD); |
| 442 | res = ResumeThread (h); |
| 443 | putdword (L"ResumeThread result", s, GDB_RESUMETHREAD, res); |
| 444 | } |
| 445 | |
| 446 | /* Emulate ContinueDebugEvent. Returns ContinueDebugEvent success. */ |
| 447 | static void |
| 448 | continue_debug_event (int s) |
| 449 | { |
| 450 | gdb_wince_result res; |
| 451 | DWORD pid = getdword (L"ContinueDebugEvent pid", s, GDB_CONTINUEDEBUGEVENT); |
| 452 | DWORD tid = getdword (L"ContinueDebugEvent tid", s, GDB_CONTINUEDEBUGEVENT); |
| 453 | DWORD status = getdword (L"ContinueDebugEvent status", s, GDB_CONTINUEDEBUGEVENT); |
| 454 | res = (gdb_wince_result) ContinueDebugEvent (pid, tid, status); |
| 455 | putresult (L"ContinueDebugEvent result", res, s, GDB_CONTINUEDEBUGEVENT, &res, sizeof (res)); |
| 456 | } |
| 457 | |
| 458 | /* Emulate CloseHandle. Returns CloseHandle success. */ |
| 459 | static void |
| 460 | close_handle (int s) |
| 461 | { |
| 462 | gdb_wince_result res; |
| 463 | HANDLE h = gethandle (L"CloseHandle handle", s, GDB_CLOSEHANDLE); |
| 464 | res = (gdb_wince_result) CloseHandle (h); |
| 465 | putresult (L"CloseHandle result", res, s, GDB_CLOSEHANDLE, &res, sizeof (res)); |
| 466 | } |
| 467 | |
| 468 | /* Main loop for reading requests from gdb host on the socket. */ |
| 469 | static void |
| 470 | dispatch (int s) |
| 471 | { |
| 472 | gdb_wince_id id; |
| 473 | |
| 474 | /* Continue reading from socket until receive a GDB_STOPSUB. */ |
| 475 | while (sockread (L"Dispatch", s, &id, sizeof (id)) > 0) |
| 476 | { |
| 477 | skip_next_id = 1; |
| 478 | switch (id) |
| 479 | { |
| 480 | case GDB_CREATEPROCESS: |
| 481 | create_process (s); |
| 482 | break; |
| 483 | case GDB_TERMINATEPROCESS: |
| 484 | terminate_process (s); |
| 485 | break; |
| 486 | case GDB_WAITFORDEBUGEVENT: |
| 487 | wait_for_debug_event (s); |
| 488 | break; |
| 489 | case GDB_GETTHREADCONTEXT: |
| 490 | get_thread_context (s); |
| 491 | break; |
| 492 | case GDB_SETTHREADCONTEXT: |
| 493 | set_thread_context (s); |
| 494 | break; |
| 495 | case GDB_READPROCESSMEMORY: |
| 496 | read_process_memory (s); |
| 497 | break; |
| 498 | case GDB_WRITEPROCESSMEMORY: |
| 499 | write_process_memory (s); |
| 500 | break; |
| 501 | case GDB_THREADALIVE: |
| 502 | thread_alive (s); |
| 503 | break; |
| 504 | case GDB_SUSPENDTHREAD: |
| 505 | suspend_thread (s); |
| 506 | break; |
| 507 | case GDB_RESUMETHREAD: |
| 508 | resume_thread (s); |
| 509 | break; |
| 510 | case GDB_CONTINUEDEBUGEVENT: |
| 511 | continue_debug_event (s); |
| 512 | break; |
| 513 | case GDB_CLOSEHANDLE: |
| 514 | close_handle (s); |
| 515 | break; |
| 516 | case GDB_STOPSTUB: |
| 517 | terminate_process (s); |
| 518 | return; |
| 519 | case GDB_SINGLESTEP: |
| 520 | flag_single_step (s); |
| 521 | break; |
| 522 | default: |
| 523 | { |
| 524 | WCHAR buf[80]; |
| 525 | wsprintfW (buf, L"Invalid command id received: %d", id); |
| 526 | MessageBoxW (NULL, buf, L"GDB", MB_ICONERROR); |
| 527 | skip_next_id = 0; |
| 528 | } |
| 529 | } |
| 530 | } |
| 531 | } |
| 532 | |
| 533 | /* The Windows Main entry point */ |
| 534 | int WINAPI |
| 535 | WinMain (HINSTANCE hi, HINSTANCE hp, LPWSTR cmd, int show) |
| 536 | { |
| 537 | struct hostent *h; |
| 538 | int s; |
| 539 | struct WSAData wd; |
| 540 | struct sockaddr_in sin; |
| 541 | int tmp; |
| 542 | LPWSTR whost; |
| 543 | char host[80]; |
| 544 | |
| 545 | whost = wcschr (cmd, L' '); /* Look for argument. */ |
| 546 | |
| 547 | /* If no host is specified, just use default */ |
| 548 | if (whost) |
| 549 | { |
| 550 | /* Eat any spaces. */ |
| 551 | while (*whost == L' ' || *whost == L'\t') |
| 552 | whost++; |
| 553 | |
| 554 | wcstombs (host, whost, 80); /* Convert from UNICODE to ascii */ |
| 555 | } |
| 556 | |
| 557 | /* Winsock initialization. */ |
| 558 | if (WSAStartup (MAKEWORD (1, 1), &wd)) |
| 559 | stub_error (L"Couldn't initialize WINSOCK."); |
| 560 | |
| 561 | /* If whost was specified, first try it. If it was not specified or the |
| 562 | host lookup failed, try the Windows CE magic ppp_peer lookup. ppp_peer |
| 563 | is supposed to be the Windows host sitting on the other end of the |
| 564 | serial cable. */ |
| 565 | if (whost && *whost && (h = gethostbyname (host)) != NULL) |
| 566 | /* nothing to do */ ; |
| 567 | else if ((h = gethostbyname ("ppp_peer")) == NULL) |
| 568 | stub_error (L"Couldn't get IP address of host system. Error %d", WSAGetLastError ()); |
| 569 | |
| 570 | /* Get a socket. */ |
| 571 | if ((s = socket (AF_INET, SOCK_STREAM, 0)) < 0) |
| 572 | stub_error (L"Couldn't connect to host system. Error %d", WSAGetLastError ()); |
| 573 | |
| 574 | /* Allow rapid reuse of the port. */ |
| 575 | tmp = 1; |
| 576 | setsockopt (s, SOL_SOCKET, SO_REUSEADDR, (char *) &tmp, sizeof (tmp)); |
| 577 | |
| 578 | /* Set up the information for connecting to the host gdb process. */ |
| 579 | memset (&sin, 0, sizeof (sin)); |
| 580 | sin.sin_family = h->h_addrtype; |
| 581 | memcpy (&sin.sin_addr, h->h_addr, h->h_length); |
| 582 | sin.sin_port = htons (7000); /* FIXME: This should be configurable */ |
| 583 | |
| 584 | /* Connect to host */ |
| 585 | if (connect (s, (struct sockaddr *) &sin, sizeof (sin)) < 0) |
| 586 | stub_error (L"Couldn't connect to host gdb."); |
| 587 | |
| 588 | /* Read from socket until told to exit. */ |
| 589 | dispatch (s); |
| 590 | WSACleanup (); |
| 591 | return 0; |
| 592 | } |