1 /* 2 * Copyright 2005, Ingo Weinhold, bonefish@users.sf.net. 3 * Distributed under the terms of the MIT License. 4 */ 5 #ifndef _DEBUGGER_H 6 #define _DEBUGGER_H 7 8 9 #include <signal.h> 10 11 #include <image.h> 12 #include <OS.h> 13 14 // include architecture specific definitions 15 #include <arch/x86/arch_debugger.h> 16 #include <arch/ppc/arch_debugger.h> 17 #include <arch/m68k/arch_debugger.h> 18 #include <arch/mipsel/arch_debugger.h> 19 #include <arch/arm/arch_debugger.h> 20 21 22 #ifdef __INTEL__ 23 typedef struct x86_debug_cpu_state debug_cpu_state; 24 #elif __POWERPC__ 25 typedef struct ppc_debug_cpu_state debug_cpu_state; 26 #elif __M68K__ 27 typedef struct m68k_debug_cpu_state debug_cpu_state; 28 #elif __MIPSEL__ 29 typedef struct mipsel_debug_cpu_state debug_cpu_state; 30 #elif __ARM__ 31 typedef struct arm_debug_cpu_state debug_cpu_state; 32 #else 33 #error unsupported architecture 34 #endif 35 36 37 #ifdef __cplusplus 38 extern "C" { 39 #endif 40 41 extern status_t install_default_debugger(port_id debuggerPort); 42 extern port_id install_team_debugger(team_id team, port_id debuggerPort); 43 extern status_t remove_team_debugger(team_id team); 44 extern status_t debug_thread(thread_id thread); 45 extern void wait_for_debugger(void); 46 47 // EXPERIMENTAL: Self-debugging functions. Will fail when a team debugger is 48 // installed. A breakpoint/watchpoint hit will cause the default debugger to 49 // be installed for the team. 50 extern status_t set_debugger_breakpoint(void *address); 51 extern status_t clear_debugger_breakpoint(void *address); 52 extern status_t set_debugger_watchpoint(void *address, uint32 type, 53 int32 length); 54 extern status_t clear_debugger_watchpoint(void *address); 55 56 57 // team debugging flags 58 enum { 59 // event mask: If a flag is set, any of the team's threads will stop when 60 // the respective event occurs. None of the flags are enabled by default. 61 // Always enabled are debugger() calls and hardware exceptions, as well as 62 // the deletion of the debugged team. 63 B_TEAM_DEBUG_SIGNALS = 0x00010000, 64 B_TEAM_DEBUG_PRE_SYSCALL = 0x00020000, 65 B_TEAM_DEBUG_POST_SYSCALL = 0x00040000, 66 B_TEAM_DEBUG_TEAM_CREATION = 0x00080000, 67 B_TEAM_DEBUG_THREADS = 0x00100000, 68 B_TEAM_DEBUG_IMAGES = 0x00200000, 69 B_TEAM_DEBUG_PREVENT_EXIT = 0x00400000, 70 71 // new thread handling 72 B_TEAM_DEBUG_STOP_NEW_THREADS = 0x01000000, 73 74 B_TEAM_DEBUG_USER_FLAG_MASK = 0xffff0000, 75 }; 76 77 // per-thread debugging flags 78 enum { 79 // event mask: If a flag is set, the thread will stop when the respective 80 // event occurs. If there is a corresponding team flag, it is sufficient, 81 // if either is set. Per default none of the flags is set. 82 B_THREAD_DEBUG_PRE_SYSCALL = 0x00010000, 83 B_THREAD_DEBUG_POST_SYSCALL = 0x00020000, 84 85 // child thread handling 86 B_THREAD_DEBUG_STOP_CHILD_THREADS = 0x00100000, 87 B_THREAD_DEBUG_SYSCALL_TRACE_CHILD_THREADS = 0x00200000, 88 89 B_THREAD_DEBUG_USER_FLAG_MASK = 0xffff0000, 90 }; 91 92 // in case of a B_EXCEPTION_OCCURRED event: the type of the exception 93 typedef enum { 94 B_NON_MASKABLE_INTERRUPT = 0, 95 B_MACHINE_CHECK_EXCEPTION, 96 B_SEGMENT_VIOLATION, 97 B_ALIGNMENT_EXCEPTION, 98 B_DIVIDE_ERROR, 99 B_OVERFLOW_EXCEPTION, 100 B_BOUNDS_CHECK_EXCEPTION, 101 B_INVALID_OPCODE_EXCEPTION, 102 B_SEGMENT_NOT_PRESENT, 103 B_STACK_FAULT, 104 B_GENERAL_PROTECTION_FAULT, 105 B_FLOATING_POINT_EXCEPTION, 106 } debug_exception_type; 107 108 // Value indicating how a stopped thread shall continue. 109 enum { 110 B_THREAD_DEBUG_HANDLE_EVENT = 0, // handle the event normally 111 // (e.g. a signal is delivered, a 112 // CPU fault kills the team,...) 113 B_THREAD_DEBUG_IGNORE_EVENT, // ignore the event and continue as if 114 // it didn't occur (e.g. a signal or 115 // a CPU fault will be ignored) 116 }; 117 118 // watchpoint types (ToDo: Check PPC support.) 119 enum { 120 B_DATA_READ_WATCHPOINT = 0, // !x86 121 B_DATA_WRITE_WATCHPOINT, 122 B_DATA_READ_WRITE_WATCHPOINT, 123 }; 124 125 // how to apply signal ignore masks 126 typedef enum { 127 B_DEBUG_SIGNAL_MASK_AND = 0, 128 B_DEBUG_SIGNAL_MASK_OR, 129 B_DEBUG_SIGNAL_MASK_SET, 130 } debug_signal_mask_op; 131 132 #define B_DEBUG_SIGNAL_TO_MASK(signal) (1ULL << ((signal) - 1)) 133 134 // maximal number of bytes to read/write via B_DEBUG_MESSAGE_{READ,WRITE]_MEMORY 135 enum { 136 B_MAX_READ_WRITE_MEMORY_SIZE = 1024, 137 }; 138 139 // messages to the debug nub thread 140 typedef enum { 141 B_DEBUG_MESSAGE_READ_MEMORY = 0, // read from the team's memory 142 B_DEBUG_MESSAGE_WRITE_MEMORY, // write to the team's memory 143 B_DEBUG_MESSAGE_SET_TEAM_FLAGS, // set the team's debugging flags 144 B_DEBUG_MESSAGE_SET_THREAD_FLAGS, // set a thread's debugging flags 145 B_DEBUG_MESSAGE_CONTINUE_THREAD, // continue a stopped thread 146 B_DEBUG_MESSAGE_SET_CPU_STATE, // change a stopped thread's CPU state 147 B_DEBUG_MESSAGE_GET_CPU_STATE, // get the thread's current CPU state 148 B_DEBUG_MESSAGE_SET_BREAKPOINT, // set a breakpoint 149 B_DEBUG_MESSAGE_CLEAR_BREAKPOINT, // clear a breakpoint 150 B_DEBUG_MESSAGE_SET_WATCHPOINT, // set a watchpoint 151 B_DEBUG_MESSAGE_CLEAR_WATCHPOINT, // clear a watchpoint 152 B_DEBUG_MESSAGE_SET_SIGNAL_MASKS, // set/get a thread's masks of signals 153 B_DEBUG_MESSAGE_GET_SIGNAL_MASKS, // the debugger is interested in 154 B_DEBUG_MESSAGE_SET_SIGNAL_HANDLER, // set/get the team's signal handler for 155 B_DEBUG_MESSAGE_GET_SIGNAL_HANDLER, // a signal 156 157 B_DEBUG_MESSAGE_PREPARE_HANDOVER, // prepares the debugged team for being 158 // handed over to another debugger; 159 // the new debugger can just invoke 160 // install_team_debugger() 161 162 B_DEBUG_START_PROFILER, // start/stop sampling 163 B_DEBUG_STOP_PROFILER // 164 } debug_nub_message; 165 166 // messages sent to the debugger 167 typedef enum { 168 B_DEBUGGER_MESSAGE_THREAD_DEBUGGED = 0, // debugger message in reaction to 169 // an invocation of debug_thread() 170 B_DEBUGGER_MESSAGE_DEBUGGER_CALL, // thread called debugger() 171 B_DEBUGGER_MESSAGE_BREAKPOINT_HIT, // thread hit a breakpoint 172 B_DEBUGGER_MESSAGE_WATCHPOINT_HIT, // thread hit a watchpoint 173 B_DEBUGGER_MESSAGE_SINGLE_STEP, // thread was single-stepped 174 B_DEBUGGER_MESSAGE_PRE_SYSCALL, // begin of a syscall 175 B_DEBUGGER_MESSAGE_POST_SYSCALL, // end of a syscall 176 B_DEBUGGER_MESSAGE_SIGNAL_RECEIVED, // thread received a signal 177 B_DEBUGGER_MESSAGE_EXCEPTION_OCCURRED, // an exception occurred 178 B_DEBUGGER_MESSAGE_TEAM_CREATED, // the debugged team created a new 179 // one 180 B_DEBUGGER_MESSAGE_TEAM_DELETED, // the debugged team is gone 181 B_DEBUGGER_MESSAGE_TEAM_EXEC, // the debugged team executes exec() 182 B_DEBUGGER_MESSAGE_THREAD_CREATED, // a thread has been created 183 B_DEBUGGER_MESSAGE_THREAD_DELETED, // a thread has been deleted 184 B_DEBUGGER_MESSAGE_IMAGE_CREATED, // an image has been created 185 B_DEBUGGER_MESSAGE_IMAGE_DELETED, // an image has been deleted 186 187 B_DEBUGGER_MESSAGE_PROFILER_UPDATE, // flush the profiling buffer for a 188 // thread 189 190 B_DEBUGGER_MESSAGE_HANDED_OVER, // the debugged team has been 191 // handed over to another debugger, 192 // sent to both debuggers 193 } debug_debugger_message; 194 195 196 // profile events -- when the buffer is in variable stack depth format, a sample 197 // count entry >= B_DEBUG_PROFILE_EVENT_BASE indicates a profile event 198 enum { 199 B_DEBUG_PROFILE_EVENT_BASE = 0x80000000, 200 B_DEBUG_PROFILE_EVENT_PARAMETER_MASK = 0x0000ffff, 201 // & with to get the event's parameter count 202 203 B_DEBUG_PROFILE_IMAGE_EVENT = 0x80010001 204 // single parameter: the respective image event counter 205 }; 206 207 208 // #pragma mark - 209 // #pragma mark ----- messages to the debug nub thread ----- 210 211 // B_DEBUG_MESSAGE_READ_MEMORY 212 213 typedef struct { 214 port_id reply_port; // port to send the reply to 215 void *address; // address from which to read 216 int32 size; // number of bytes to read 217 } debug_nub_read_memory; 218 219 typedef struct { 220 status_t error; // B_OK, if reading went fine 221 int32 size; // the number of bytes actually read 222 // > 0, iff error == B_OK 223 char data[B_MAX_READ_WRITE_MEMORY_SIZE]; 224 // the read data 225 } debug_nub_read_memory_reply; 226 227 // B_DEBUG_MESSAGE_WRITE_MEMORY 228 229 typedef struct { 230 port_id reply_port; // port to send the reply to 231 void *address; // address to which to write 232 int32 size; // number of bytes to write 233 char data[B_MAX_READ_WRITE_MEMORY_SIZE]; 234 // data to write 235 } debug_nub_write_memory; 236 237 typedef struct { 238 status_t error; // B_OK, if writing went fine 239 int32 size; // the number of bytes actually written 240 } debug_nub_write_memory_reply; 241 242 // B_DEBUG_MESSAGE_SET_TEAM_FLAGS 243 244 typedef struct { 245 int32 flags; // the new team debugging flags 246 } debug_nub_set_team_flags; 247 248 // B_DEBUG_MESSAGE_SET_THREAD_FLAGS 249 250 typedef struct { 251 thread_id thread; // the thread 252 int32 flags; // the new thread debugging flags 253 } debug_nub_set_thread_flags; 254 255 // B_DEBUG_MESSAGE_CONTINUE_THREAD 256 257 typedef struct { 258 thread_id thread; // the thread 259 uint32 handle_event; // how to handle the occurred event 260 bool single_step; // true == single step, false == run full speed 261 } debug_nub_continue_thread; 262 263 // B_DEBUG_MESSAGE_SET_CPU_STATE 264 265 typedef struct { 266 thread_id thread; // the thread 267 debug_cpu_state cpu_state; // the new CPU state 268 } debug_nub_set_cpu_state; 269 270 // B_DEBUG_MESSAGE_GET_CPU_STATE 271 272 typedef struct { 273 port_id reply_port; // port to send the reply to 274 thread_id thread; // the thread 275 } debug_nub_get_cpu_state; 276 277 typedef struct { 278 status_t error; // != B_OK, if something went wrong 279 // (bad thread ID, thread not stopped) 280 debug_debugger_message message; // the reason why the thread stopped 281 debug_cpu_state cpu_state; // the thread's CPU state 282 } debug_nub_get_cpu_state_reply; 283 284 // B_DEBUG_MESSAGE_SET_BREAKPOINT 285 286 typedef struct { 287 port_id reply_port; // port to send the reply to 288 void *address; // breakpoint address 289 } debug_nub_set_breakpoint; 290 291 typedef struct { 292 status_t error; // B_OK, if the breakpoint has been set 293 // successfully 294 } debug_nub_set_breakpoint_reply; 295 296 // B_DEBUG_MESSAGE_CLEAR_BREAKPOINT 297 298 typedef struct { 299 void *address; // breakpoint address 300 } debug_nub_clear_breakpoint; 301 302 // B_DEBUG_MESSAGE_SET_WATCHPOINT 303 304 typedef struct { 305 port_id reply_port; // port to send the reply to 306 void *address; // watchpoint address 307 uint32 type; // watchpoint type (see type constants above) 308 int32 length; // number of bytes to watch (typically 1, 2, 309 // 4); architecture specific alignment 310 // restrictions apply. 311 } debug_nub_set_watchpoint; 312 313 typedef struct { 314 status_t error; // B_OK, if the watchpoint has been set 315 // successfully 316 } debug_nub_set_watchpoint_reply; 317 318 // B_DEBUG_MESSAGE_CLEAR_WATCHPOINT 319 320 typedef struct { 321 void *address; // watchpoint address 322 } debug_nub_clear_watchpoint; 323 324 // B_DEBUG_MESSAGE_SET_SIGNAL_MASKS 325 326 typedef struct { 327 thread_id thread; // the thread 328 uint64 ignore_mask; // the mask for signals the 329 // debugger wishes not to be 330 // notified of 331 uint64 ignore_once_mask; // the mask for signals the 332 // debugger wishes not to be 333 // notified of when they next 334 // occur 335 debug_signal_mask_op ignore_op; // what to do with ignore_mask 336 debug_signal_mask_op ignore_once_op; // what to do with 337 // ignore_once_mask 338 } debug_nub_set_signal_masks; 339 340 // B_DEBUG_MESSAGE_GET_SIGNAL_MASKS 341 342 typedef struct { 343 port_id reply_port; // port to send the reply to 344 thread_id thread; // the thread 345 } debug_nub_get_signal_masks; 346 347 typedef struct { 348 status_t error; // B_OK, if the thread exists 349 uint64 ignore_mask; // the mask for signals the debugger wishes 350 // not to be notified of 351 uint64 ignore_once_mask; // the mask for signals the debugger wishes 352 // not to be notified of when they next 353 // occur 354 } debug_nub_get_signal_masks_reply; 355 356 // B_DEBUG_MESSAGE_SET_SIGNAL_HANDLER 357 358 typedef struct { 359 int signal; // the signal 360 struct sigaction handler; // the new signal handler 361 } debug_nub_set_signal_handler; 362 363 // B_DEBUG_MESSAGE_GET_SIGNAL_HANDLER 364 365 typedef struct { 366 port_id reply_port; // port to send the reply to 367 int signal; // the signal 368 } debug_nub_get_signal_handler; 369 370 typedef struct { 371 status_t error; // B_OK, if the thread exists 372 struct sigaction handler; // the signal handler 373 } debug_nub_get_signal_handler_reply; 374 375 // B_DEBUG_MESSAGE_PREPARE_HANDOVER 376 377 // no parameters, no reply 378 379 // B_DEBUG_START_PROFILER 380 381 struct debug_profile_function { 382 addr_t base; // function base address 383 size_t size; // function size 384 }; 385 386 typedef struct { 387 port_id reply_port; // port to send the reply to 388 thread_id thread; // thread to profile 389 bigtime_t interval; // sample interval 390 area_id sample_area; // area into which the sample will be 391 // written 392 int32 stack_depth; // number of return address per hit 393 bool variable_stack_depth; 394 // variable number of samples per hit; 395 // cf. debug_profiler_update 396 } debug_nub_start_profiler; 397 398 typedef struct { 399 status_t error; 400 int32 image_event; // number of the last image event 401 bigtime_t interval; // actual sample interval (might 402 // differ from the requested one) 403 } debug_nub_start_profiler_reply; 404 405 // B_DEBUG_STOP_PROFILER 406 407 typedef struct { 408 port_id reply_port; // port to send the reply to 409 thread_id thread; // thread to profile 410 } debug_nub_stop_profiler; 411 412 // reply is debug_profiler_update 413 414 // union of all messages structures sent to the debug nub thread 415 typedef union { 416 debug_nub_read_memory read_memory; 417 debug_nub_write_memory write_memory; 418 debug_nub_set_team_flags set_team_flags; 419 debug_nub_set_thread_flags set_thread_flags; 420 debug_nub_continue_thread continue_thread; 421 debug_nub_set_cpu_state set_cpu_state; 422 debug_nub_get_cpu_state get_cpu_state; 423 debug_nub_set_breakpoint set_breakpoint; 424 debug_nub_clear_breakpoint clear_breakpoint; 425 debug_nub_set_watchpoint set_watchpoint; 426 debug_nub_clear_watchpoint clear_watchpoint; 427 debug_nub_set_signal_masks set_signal_masks; 428 debug_nub_get_signal_masks get_signal_masks; 429 debug_nub_set_signal_handler set_signal_handler; 430 debug_nub_get_signal_handler get_signal_handler; 431 debug_nub_start_profiler start_profiler; 432 debug_nub_stop_profiler stop_profiler; 433 } debug_nub_message_data; 434 435 436 // #pragma mark - 437 // #pragma mark ----- messages to the debugger ----- 438 439 // first member of all debugger messages -- not a message by itself 440 typedef struct { 441 thread_id thread; // the thread being the event origin 442 team_id team; // the thread's team 443 port_id nub_port; // port to debug nub for this team (only set 444 // for synchronous messages) 445 } debug_origin; 446 447 // B_DEBUGGER_MESSAGE_THREAD_DEBUGGED 448 449 typedef struct { 450 debug_origin origin; 451 } debug_thread_debugged; 452 453 // B_DEBUGGER_MESSAGE_DEBUGGER_CALL 454 455 typedef struct { 456 debug_origin origin; 457 void *message; // address of the message passed to 458 // debugger() 459 } debug_debugger_call; 460 461 // B_DEBUGGER_MESSAGE_BREAKPOINT_HIT 462 463 typedef struct { 464 debug_origin origin; 465 debug_cpu_state cpu_state; // cpu state 466 } debug_breakpoint_hit; 467 468 // B_DEBUGGER_MESSAGE_WATCHPOINT_HIT 469 470 typedef struct { 471 debug_origin origin; 472 debug_cpu_state cpu_state; // cpu state 473 } debug_watchpoint_hit; 474 475 // B_DEBUGGER_MESSAGE_SINGLE_STEP 476 477 typedef struct { 478 debug_origin origin; 479 debug_cpu_state cpu_state; // cpu state 480 } debug_single_step; 481 482 // B_DEBUGGER_MESSAGE_PRE_SYSCALL 483 484 typedef struct { 485 debug_origin origin; 486 uint32 syscall; // the syscall number 487 uint32 args[16]; // syscall arguments 488 } debug_pre_syscall; 489 490 // B_DEBUGGER_MESSAGE_POST_SYSCALL 491 492 typedef struct { 493 debug_origin origin; 494 bigtime_t start_time; // time of syscall start 495 bigtime_t end_time; // time of syscall completion 496 uint64 return_value; // the syscall's return value 497 uint32 syscall; // the syscall number 498 uint32 args[16]; // syscall arguments 499 } debug_post_syscall; 500 501 // B_DEBUGGER_MESSAGE_SIGNAL_RECEIVED 502 503 typedef struct { 504 debug_origin origin; 505 int signal; // the signal 506 struct sigaction handler; // the signal handler 507 bool deadly; // true, if handling the signal will kill 508 // the team 509 } debug_signal_received; 510 511 // B_DEBUGGER_MESSAGE_EXCEPTION_OCCURRED 512 513 typedef struct { 514 debug_origin origin; 515 debug_exception_type exception; // the exception 516 int signal; // the signal that will be sent, 517 // when the thread continues 518 // normally 519 } debug_exception_occurred; 520 521 // B_DEBUGGER_MESSAGE_TEAM_CREATED 522 523 typedef struct { 524 debug_origin origin; 525 team_id new_team; // the newly created team 526 } debug_team_created; 527 528 // B_DEBUGGER_MESSAGE_TEAM_DELETED 529 530 typedef struct { 531 debug_origin origin; // thread is < 0, team is the deleted team 532 // (asynchronous message) 533 } debug_team_deleted; 534 535 // B_DEBUGGER_MESSAGE_TEAM_EXEC 536 537 typedef struct { 538 debug_origin origin; 539 int32 image_event; // number of the image event 540 } debug_team_exec; 541 542 // B_DEBUGGER_MESSAGE_THREAD_CREATED 543 544 typedef struct { 545 debug_origin origin; // the thread that created the new thread 546 team_id new_thread; // the newly created thread 547 } debug_thread_created; 548 549 // B_DEBUGGER_MESSAGE_THREAD_DELETED 550 551 typedef struct { 552 debug_origin origin; // the deleted thread (asynchronous message) 553 } debug_thread_deleted; 554 555 // B_DEBUGGER_MESSAGE_IMAGE_CREATED 556 557 typedef struct { 558 debug_origin origin; 559 image_info info; // info for the image 560 int32 image_event; // number of the image event 561 } debug_image_created; 562 563 // B_DEBUGGER_MESSAGE_IMAGE_DELETED 564 565 typedef struct { 566 debug_origin origin; 567 image_info info; // info for the image 568 int32 image_event; // number of the image event 569 } debug_image_deleted; 570 571 // B_DEBUGGER_MESSAGE_PROFILER_UPDATE 572 573 typedef struct { 574 debug_origin origin; 575 int32 image_event; // number of the last image event; all 576 // samples were recorded after this 577 // event and before the next one 578 int32 stack_depth; // number of return addresses per tick 579 int32 sample_count; // number of samples in the buffer 580 int32 dropped_ticks; // number of ticks that had been 581 // dropped, since the buffer was full 582 bool variable_stack_depth; 583 // the number of samples per hit is 584 // variable, i.e. the format for the 585 // samples of a hit in the buffer is 586 // <n> <sample 1> ... <sample n> 587 // instead of 588 // <sample 1> ... <sample stack_depth> 589 bool stopped; // if true, the thread is no longer 590 // being profiled 591 } debug_profiler_update; 592 593 // B_DEBUGGER_MESSAGE_HANDED_OVER 594 595 typedef struct { 596 debug_origin origin; // thread is < 0, team is the deleted team 597 // (asynchronous message) 598 team_id debugger; // the new debugger 599 port_id debugger_port; // the port the new debugger uses 600 thread_id causing_thread; // the thread that caused entering the 601 // debugger in the first place, -1 if the 602 // debugger wasn't attached automatically 603 } debug_handed_over; 604 605 // union of all messages structures sent to the debugger 606 typedef union { 607 debug_thread_debugged thread_debugged; 608 debug_debugger_call debugger_call; 609 debug_breakpoint_hit breakpoint_hit; 610 debug_watchpoint_hit watchpoint_hit; 611 debug_single_step single_step; 612 debug_pre_syscall pre_syscall; 613 debug_post_syscall post_syscall; 614 debug_signal_received signal_received; 615 debug_exception_occurred exception_occurred; 616 debug_team_created team_created; 617 debug_team_deleted team_deleted; 618 debug_team_exec team_exec; 619 debug_thread_created thread_created; 620 debug_thread_deleted thread_deleted; 621 debug_image_created image_created; 622 debug_image_deleted image_deleted; 623 debug_profiler_update profiler_update; 624 debug_handed_over handed_over; 625 626 debug_origin origin; // for convenience (no real message) 627 } debug_debugger_message_data; 628 629 630 extern void get_debug_message_string(debug_debugger_message message, 631 char *buffer, int32 bufferSize); 632 extern void get_debug_exception_string(debug_exception_type exception, 633 char *buffer, int32 bufferSize); 634 635 636 #ifdef __cplusplus 637 } // extern "C" 638 #endif 639 640 #endif // _DEBUGGER_H 641