3 * Parser for command lines in the Wine debugger
5 * Copyright 1993 Eric Youngdale
6 * Copyright 1995 Morten Welinder
26 #include "wine/winbase16.h"
39 unsigned int dbg_mode = 0;
43 static enum exec_mode dbg_exec_mode = EXEC_CONT;
44 static int dbg_exec_count = 0;
46 void issue_prompt(void);
47 void mode_command(int);
48 void flush_symbols(void);
53 #define malloc(x) DBG_alloc(x)
54 #define realloc(x,y) DBG_realloc(x,y)
55 #define free(x) DBG_free(x)
58 extern void VIRTUAL_Dump(void); /* memory/virtual.c */
68 struct list_id listing;
69 struct expr * expression;
70 struct datatype * type;
73 %token tCONT tPASS tSTEP tLIST tNEXT tQUIT tHELP tBACKTRACE tINFO tWALK tUP tDOWN
74 %token tENABLE tDISABLE tBREAK tDELETE tSET tMODE tPRINT tEXAM tABORT tDEBUGMSG
75 %token tCLASS tMAPS tMODULE tSTACK tSEGMENTS tREGS tWND tQUEUE tLOCAL
76 %token tPROCESS tMODREF
77 %token tEOL tSTRING tDEBUGSTR
78 %token tFRAME tSHARE tCOND tDISPLAY tUNDISPLAY tDISASSEMBLE
79 %token tSTEPI tNEXTI tFINISH tSHOW tDIR
81 %token <string> tIDENTIFIER tSTRING tDEBUGSTR
82 %token <integer> tNUM tFORMAT
86 %token tCHAR tSHORT tINT tLONG tFLOAT tDOUBLE tUNSIGNED tSIGNED
87 %token tSTRUCT tUNION tENUM
90 /* %left '=' OP_OR_EQUAL OP_XOR_EQUAL OP_AND_EQUAL OP_SHL_EQUAL \
91 OP_SHR_EQUAL OP_PLUS_EQUAL OP_MINUS_EQUAL \
92 OP_TIMES_EQUAL OP_DIVIDE_EQUAL OP_MODULO_EQUAL */
93 /* %left OP_COND */ /* ... ? ... : ... */
100 %left '<' '>' OP_LE OP_GE
104 %left OP_SIGN '!' '~' OP_DEREF /* OP_INC OP_DEC OP_ADDR */
108 %type <expression> expr lval lvalue
109 %type <type> type_cast type_expr
110 %type <address> expr_addr lval_addr
111 %type <integer> expr_value
112 %type <string> pathname
114 %type <listing> list_arg
118 input: line { issue_prompt(); }
119 | input line { issue_prompt(); }
123 | error tEOL { yyerrok; }
126 tQUIT tEOL { DEBUG_Exit(0); }
127 | tHELP tEOL { DEBUG_Help(); }
128 | tHELP tINFO tEOL { DEBUG_HelpInfo(); }
129 | tCONT tEOL { dbg_exec_count = 1;
130 dbg_exec_mode = EXEC_CONT; return 0; }
131 | tPASS tEOL { dbg_exec_count = 1;
132 dbg_exec_mode = EXEC_PASS; return 0; }
133 | tCONT tNUM tEOL { dbg_exec_count = $2;
134 dbg_exec_mode = EXEC_CONT; return 0; }
135 | tSTEP tEOL { dbg_exec_count = 1;
136 dbg_exec_mode = EXEC_STEP_INSTR; return 0; }
137 | tNEXT tEOL { dbg_exec_count = 1;
138 dbg_exec_mode = EXEC_STEP_OVER; return 0; }
139 | tSTEP tNUM tEOL { dbg_exec_count = $2;
140 dbg_exec_mode = EXEC_STEP_INSTR; return 0; }
141 | tNEXT tNUM tEOL { dbg_exec_count = $2;
142 dbg_exec_mode = EXEC_STEP_OVER; return 0; }
143 | tSTEPI tEOL { dbg_exec_count = 1;
144 dbg_exec_mode = EXEC_STEPI_INSTR; return 0; }
145 | tNEXTI tEOL { dbg_exec_count = 1;
146 dbg_exec_mode = EXEC_STEPI_OVER; return 0; }
147 | tSTEPI tNUM tEOL { dbg_exec_count = $2;
148 dbg_exec_mode = EXEC_STEPI_INSTR; return 0; }
149 | tNEXTI tNUM tEOL { dbg_exec_count = $2;
150 dbg_exec_mode = EXEC_STEPI_OVER; return 0; }
151 | tABORT tEOL { kill(getpid(), SIGABRT); }
152 | tMODE tNUM tEOL { mode_command($2); }
153 | tENABLE tNUM tEOL { DEBUG_EnableBreakpoint( $2, TRUE ); }
154 | tDISABLE tNUM tEOL { DEBUG_EnableBreakpoint( $2, FALSE ); }
155 | tDELETE tBREAK tNUM tEOL { DEBUG_DelBreakpoint( $3 ); }
156 | tBACKTRACE tEOL { DEBUG_BackTrace(); }
157 | tUP tEOL { DEBUG_SetFrame( curr_frame + 1 ); }
158 | tUP tNUM tEOL { DEBUG_SetFrame( curr_frame + $2 ); }
159 | tDOWN tEOL { DEBUG_SetFrame( curr_frame - 1 ); }
160 | tDOWN tNUM tEOL { DEBUG_SetFrame( curr_frame - $2 ); }
161 | tFRAME tNUM tEOL { DEBUG_SetFrame( $2 ); }
162 | tFINISH tEOL { dbg_exec_count = 0;
163 dbg_exec_mode = EXEC_FINISH; return 0; }
164 | tSHOW tDIR tEOL { DEBUG_ShowDir(); }
165 | tDIR pathname tEOL { DEBUG_AddPath( $2 ); }
166 | tDIR tEOL { DEBUG_NukePath(); }
167 | tDISPLAY tEOL { DEBUG_InfoDisplay(); }
168 | tDISPLAY expr tEOL { DEBUG_AddDisplay($2, 1, 0); }
169 | tDISPLAY tFORMAT expr tEOL { DEBUG_AddDisplay($3, $2 >> 8, $2 & 0xff); }
170 | tDELETE tDISPLAY tNUM tEOL { DEBUG_DelDisplay( $3 ); }
171 | tDELETE tDISPLAY tEOL { DEBUG_DelDisplay( -1 ); }
172 | tUNDISPLAY tNUM tEOL { DEBUG_DelDisplay( $2 ); }
173 | tUNDISPLAY tEOL { DEBUG_DelDisplay( -1 ); }
174 | tCOND tNUM tEOL { DEBUG_AddBPCondition($2, NULL); }
175 | tCOND tNUM expr tEOL { DEBUG_AddBPCondition($2, $3); }
176 | tDEBUGMSG tDEBUGSTR tEOL { MAIN_ParseDebugOptions($2); }
177 | tSYMBOLFILE pathname tEOL{ DEBUG_ReadSymbolTable($2); }
179 | disassemble_command
188 tSET tREG '=' expr_value tEOL { DEBUG_SetRegister( $2, $4 );
189 DEBUG_FreeExprMem(); }
190 | tSET lval_addr '=' expr_value tEOL { DEBUG_WriteMemory( &$2, $4 );
191 DEBUG_FreeExprMem(); }
194 tIDENTIFIER { $$ = $1; }
198 tDISASSEMBLE tEOL { DEBUG_Disassemble( NULL, NULL, 10 ); }
199 | tDISASSEMBLE expr_addr tEOL { DEBUG_Disassemble( & $2, NULL, 10 ); }
200 | tDISASSEMBLE expr_addr ',' expr_addr tEOL { DEBUG_Disassemble( & $2, & $4, 0 ); }
203 tLIST tEOL { DEBUG_List( NULL, NULL, 10 ); }
204 | tLIST '-' tEOL { DEBUG_List( NULL, NULL, -10 ); }
205 | tLIST list_arg tEOL { DEBUG_List( & $2, NULL, 10 ); }
206 | tLIST ',' list_arg tEOL { DEBUG_List( NULL, & $3, -10 ); }
207 | tLIST list_arg ',' list_arg tEOL { DEBUG_List( & $2, & $4, 0 ); }
210 tNUM { $$.sourcefile = NULL; $$.line = $1; }
211 | pathname ':' tNUM { $$.sourcefile = $1; $$.line = $3; }
212 | tIDENTIFIER { DEBUG_GetFuncInfo( & $$, NULL, $1); }
213 | pathname ':' tIDENTIFIER { DEBUG_GetFuncInfo( & $$, $1, $3); }
214 | '*' expr_addr { DEBUG_FindNearestSymbol( & $2, FALSE, NULL,
216 DEBUG_FreeExprMem(); }
219 tEXAM expr_addr tEOL { DEBUG_ExamineMemory( &$2, 1, 'x');
220 DEBUG_FreeExprMem(); }
221 | tEXAM tFORMAT expr_addr tEOL { DEBUG_ExamineMemory( &$3, $2>>8, $2&0xff );
222 DEBUG_FreeExprMem(); }
225 tPRINT expr_addr tEOL { DEBUG_Print( &$2, 1, 0, 0 );
226 DEBUG_FreeExprMem(); }
227 | tPRINT tFORMAT expr_addr tEOL { DEBUG_Print( &$3, $2 >> 8, $2 & 0xff, 0 );
228 DEBUG_FreeExprMem(); }
231 tBREAK '*' expr_addr tEOL { DEBUG_AddBreakpoint( &$3 );
232 DEBUG_FreeExprMem(); }
233 | tBREAK tIDENTIFIER tEOL { DBG_ADDR addr;
234 if( DEBUG_GetSymbolValue($2, -1, &addr, TRUE) )
236 DEBUG_AddBreakpoint( &addr );
240 fprintf(stderr,"Unable to add breakpoint\n");
243 | tBREAK tIDENTIFIER ':' tNUM tEOL { DBG_ADDR addr;
244 if( DEBUG_GetSymbolValue($2, $4, &addr, TRUE) )
246 DEBUG_AddBreakpoint( &addr );
250 fprintf(stderr,"Unable to add breakpoint\n");
253 | tBREAK tNUM tEOL { struct name_hash *nh;
255 TDB *pTask = (TDB*)GlobalLock16( GetCurrentTask() );
258 addr.seg = CS_reg(&DEBUG_context);
259 addr.off = EIP_reg(&DEBUG_context);
261 if (ISV86(&DEBUG_context))
262 addr.seg |= (DWORD)(pTask?(pTask->hModule):0)<<16;
263 DBG_FIX_ADDR_SEG( &addr, CS_reg(&DEBUG_context) );
264 GlobalUnlock16( GetCurrentTask() );
265 DEBUG_FindNearestSymbol(&addr, TRUE,
269 DEBUG_GetLineNumberAddr(nh,
271 DEBUG_AddBreakpoint( &addr );
275 fprintf(stderr,"Unable to add breakpoint\n");
279 | tBREAK tEOL { DBG_ADDR addr;
280 TDB *pTask = (TDB*)GlobalLock16( GetCurrentTask() );
283 addr.seg = CS_reg(&DEBUG_context);
284 addr.off = EIP_reg(&DEBUG_context);
286 if (ISV86(&DEBUG_context))
287 addr.seg |= (DWORD)(pTask?(pTask->hModule):0)<<16;
288 GlobalUnlock16( GetCurrentTask() );
289 DEBUG_AddBreakpoint( &addr );
293 tINFO tBREAK tEOL { DEBUG_InfoBreakpoints(); }
294 | tINFO tCLASS expr_value tEOL { CLASS_DumpClass( (struct tagCLASS *)$3 );
295 DEBUG_FreeExprMem(); }
296 | tINFO tSHARE tEOL { DEBUG_InfoShare(); }
297 | tINFO tMODULE expr_value tEOL { NE_DumpModule( $3 );
298 DEBUG_FreeExprMem(); }
299 | tINFO tQUEUE expr_value tEOL { QUEUE_DumpQueue( $3 );
300 DEBUG_FreeExprMem(); }
301 | tINFO tREGS tEOL { DEBUG_InfoRegisters(); }
302 | tINFO tSEGMENTS expr_value tEOL { LDT_Print( SELECTOR_TO_ENTRY($3), 1 );
303 DEBUG_FreeExprMem(); }
304 | tINFO tSEGMENTS tEOL { LDT_Print( 0, -1 ); }
305 | tINFO tSTACK tEOL { DEBUG_InfoStack(); }
306 | tINFO tMAPS tEOL { VIRTUAL_Dump(); }
307 | tINFO tWND expr_value tEOL { WIN_DumpWindow( $3 );
308 DEBUG_FreeExprMem(); }
309 | tINFO tLOCAL tEOL { DEBUG_InfoLocals(); }
310 | tINFO tDISPLAY tEOL { DEBUG_InfoDisplay(); }
313 tWALK tCLASS tEOL { CLASS_WalkClasses(); }
314 | tWALK tMODULE tEOL { NE_WalkModules(); }
315 | tWALK tQUEUE tEOL { QUEUE_WalkQueues(); }
316 | tWALK tWND tEOL { WIN_WalkWindows( 0, 0 ); }
317 | tWALK tWND tNUM tEOL { WIN_WalkWindows( $3, 0 ); }
318 | tWALK tPROCESS tEOL { PROCESS_WalkProcess(); }
319 | tWALK tMODREF expr_value tEOL { MODULE_WalkModref( $3 ); }
323 '(' type_expr ')' { $$ = $2; }
326 type_expr '*' { $$ = DEBUG_FindOrMakePointerType($1); }
327 | tINT { $$ = DEBUG_TypeCast(DT_BASIC, "int"); }
328 | tCHAR { $$ = DEBUG_TypeCast(DT_BASIC, "char"); }
329 | tLONG tINT { $$ = DEBUG_TypeCast(DT_BASIC, "long int"); }
330 | tUNSIGNED tINT { $$ = DEBUG_TypeCast(DT_BASIC, "unsigned int"); }
331 | tLONG tUNSIGNED tINT { $$ = DEBUG_TypeCast(DT_BASIC, "long unsigned int"); }
332 | tLONG tLONG tINT { $$ = DEBUG_TypeCast(DT_BASIC, "long long int"); }
333 | tLONG tLONG tUNSIGNED tINT { $$ = DEBUG_TypeCast(DT_BASIC, "long long unsigned int"); }
334 | tSHORT tINT { $$ = DEBUG_TypeCast(DT_BASIC, "short int"); }
335 | tSHORT tUNSIGNED tINT { $$ = DEBUG_TypeCast(DT_BASIC, "short unsigned int"); }
336 | tSIGNED tCHAR { $$ = DEBUG_TypeCast(DT_BASIC, "signed char"); }
337 | tUNSIGNED tCHAR { $$ = DEBUG_TypeCast(DT_BASIC, "unsigned char"); }
338 | tFLOAT { $$ = DEBUG_TypeCast(DT_BASIC, "float"); }
339 | tDOUBLE { $$ = DEBUG_TypeCast(DT_BASIC, "double"); }
340 | tLONG tDOUBLE { $$ = DEBUG_TypeCast(DT_BASIC, "long double"); }
341 | tSTRUCT tIDENTIFIER { $$ = DEBUG_TypeCast(DT_STRUCT, $2); }
342 | tUNION tIDENTIFIER { $$ = DEBUG_TypeCast(DT_STRUCT, $2); }
343 | tENUM tIDENTIFIER { $$ = DEBUG_TypeCast(DT_ENUM, $2); }
346 expr { $$ = DEBUG_EvalExpr($1); }
349 expr { DBG_ADDR addr = DEBUG_EvalExpr($1);
350 $$ = addr.off ? *(unsigned int *) addr.off : 0; }
352 * The expr rule builds an expression tree. When we are done, we call
353 * EvalExpr to evaluate the value of the expression. The advantage of
354 * the two-step approach is that it is possible to save expressions for
355 * use in 'display' commands, and in conditional watchpoints.
358 tNUM { $$ = DEBUG_ConstExpr($1); }
359 | tSTRING { $$ = DEBUG_StringExpr($1); }
360 | tREG { $$ = DEBUG_RegisterExpr($1); }
361 | tIDENTIFIER { $$ = DEBUG_SymbolExpr($1); }
362 | expr OP_DRF tIDENTIFIER { $$ = DEBUG_StructPExpr($1, $3); }
363 | expr '.' tIDENTIFIER { $$ = DEBUG_StructExpr($1, $3); }
364 | tIDENTIFIER '(' ')' { $$ = DEBUG_CallExpr($1, 0); }
365 | tIDENTIFIER '(' expr ')' { $$ = DEBUG_CallExpr($1, 1, $3); }
366 | tIDENTIFIER '(' expr ',' expr ')' { $$ = DEBUG_CallExpr($1, 2, $3,
368 | tIDENTIFIER '(' expr ',' expr ',' expr ')' { $$ = DEBUG_CallExpr($1, 3, $3, $5, $7); }
369 | tIDENTIFIER '(' expr ',' expr ',' expr ',' expr ')' { $$ = DEBUG_CallExpr($1, 3, $3, $5, $7, $9); }
370 | tIDENTIFIER '(' expr ',' expr ',' expr ',' expr ',' expr ')' { $$ = DEBUG_CallExpr($1, 3, $3, $5, $7, $9, $11); }
371 | expr '[' expr ']' { $$ = DEBUG_BinopExpr(EXP_OP_ARR, $1, $3); }
372 | expr ':' expr { $$ = DEBUG_BinopExpr(EXP_OP_SEG, $1, $3); }
373 | expr OP_LOR expr { $$ = DEBUG_BinopExpr(EXP_OP_LOR, $1, $3); }
374 | expr OP_LAND expr { $$ = DEBUG_BinopExpr(EXP_OP_LAND, $1, $3); }
375 | expr '|' expr { $$ = DEBUG_BinopExpr(EXP_OP_OR, $1, $3); }
376 | expr '&' expr { $$ = DEBUG_BinopExpr(EXP_OP_AND, $1, $3); }
377 | expr '^' expr { $$ = DEBUG_BinopExpr(EXP_OP_XOR, $1, $3); }
378 | expr OP_EQ expr { $$ = DEBUG_BinopExpr(EXP_OP_EQ, $1, $3); }
379 | expr '>' expr { $$ = DEBUG_BinopExpr(EXP_OP_GT, $1, $3); }
380 | expr '<' expr { $$ = DEBUG_BinopExpr(EXP_OP_LT, $1, $3); }
381 | expr OP_GE expr { $$ = DEBUG_BinopExpr(EXP_OP_GE, $1, $3); }
382 | expr OP_LE expr { $$ = DEBUG_BinopExpr(EXP_OP_LE, $1, $3); }
383 | expr OP_NE expr { $$ = DEBUG_BinopExpr(EXP_OP_NE, $1, $3); }
384 | expr OP_SHL expr { $$ = DEBUG_BinopExpr(EXP_OP_SHL, $1, $3); }
385 | expr OP_SHR expr { $$ = DEBUG_BinopExpr(EXP_OP_SHR, $1, $3); }
386 | expr '+' expr { $$ = DEBUG_BinopExpr(EXP_OP_ADD, $1, $3); }
387 | expr '-' expr { $$ = DEBUG_BinopExpr(EXP_OP_SUB, $1, $3); }
388 | expr '*' expr { $$ = DEBUG_BinopExpr(EXP_OP_MUL, $1, $3); }
389 | expr '/' expr { $$ = DEBUG_BinopExpr(EXP_OP_DIV, $1, $3); }
390 | expr '%' expr { $$ = DEBUG_BinopExpr(EXP_OP_REM, $1, $3); }
391 | '-' expr %prec OP_SIGN { $$ = DEBUG_UnopExpr(EXP_OP_NEG, $2); }
392 | '+' expr %prec OP_SIGN { $$ = $2; }
393 | '!' expr { $$ = DEBUG_UnopExpr(EXP_OP_NOT, $2); }
394 | '~' expr { $$ = DEBUG_UnopExpr(EXP_OP_LNOT, $2); }
395 | '(' expr ')' { $$ = $2; }
396 | '*' expr %prec OP_DEREF { $$ = DEBUG_UnopExpr(EXP_OP_DEREF, $2); }
397 | '&' expr %prec OP_DEREF { $$ = DEBUG_UnopExpr(EXP_OP_ADDR, $2); }
398 | type_cast expr %prec OP_DEREF { $$ = DEBUG_TypeCastExpr($1, $2); }
401 * The lvalue rule builds an expression tree. This is a limited form
402 * of expression that is suitable to be used as an lvalue.
405 lval { $$ = DEBUG_EvalExpr($1); }
409 | '*' expr { $$ = DEBUG_UnopExpr(EXP_OP_FORCE_DEREF, $2); }
412 tNUM { $$ = DEBUG_ConstExpr($1); }
413 | tREG { $$ = DEBUG_RegisterExpr($1); }
414 | tIDENTIFIER { $$ = DEBUG_SymbolExpr($1); }
415 | lvalue OP_DRF tIDENTIFIER { $$ = DEBUG_StructPExpr($1, $3); }
416 | lvalue '.' tIDENTIFIER { $$ = DEBUG_StructExpr($1, $3); }
417 | lvalue '[' expr ']' { $$ = DEBUG_BinopExpr(EXP_OP_ARR, $1, $3); }
423 #ifdef DONT_USE_READLINE
424 fprintf(stderr,"Wine-dbg>");
428 void mode_command(int newmode)
430 if ((newmode == 16) || (newmode == 32)) dbg_mode = newmode;
431 else fprintf(stderr,"Invalid mode (use 16 or 32)\n");
434 /***********************************************************************
437 static void DEBUG_Freeze( BOOL freeze )
439 static BOOL frozen = FALSE;
441 if ( freeze && !frozen )
443 /* Don't freeze thread currently holding the X crst! */
444 EnterCriticalSection( &X11DRV_CritSection );
445 CLIENT_DebuggerRequest( DEBUGGER_FREEZE_ALL );
446 LeaveCriticalSection( &X11DRV_CritSection );
450 if ( !freeze && frozen )
452 CLIENT_DebuggerRequest( DEBUGGER_UNFREEZE_ALL );
457 /***********************************************************************
460 * Kill current process.
462 void DEBUG_Exit( DWORD exit_code )
464 DEBUG_Freeze( FALSE );
466 TASK_KillTask( 0 ); /* FIXME: should not be necessary */
467 TerminateProcess( GetCurrentProcess(), exit_code );
470 /***********************************************************************
473 * Debugger main loop.
475 static void DEBUG_Main( BOOL is_debug )
477 static int loaded_symbols = 0;
478 static BOOL in_debugger = FALSE;
479 char SymbolTableFile[256];
488 fprintf( stderr, " inside debugger, exiting.\n" );
494 DEBUG_SetBreakpoints( FALSE );
498 if (IS_SELECTOR_SYSTEM(CS_reg(&DEBUG_context)))
499 fprintf( stderr, " in 32-bit code (0x%08lx).\n", EIP_reg(&DEBUG_context));
501 fprintf( stderr, " in 16-bit code (%04x:%04lx).\n",
502 (WORD)CS_reg(&DEBUG_context), EIP_reg(&DEBUG_context) );
509 DEBUG_Freeze( TRUE );
513 * Initialize the debugger heap.
515 dbg_heap = HeapCreate(HEAP_NO_SERIALIZE, 0x1000, 0x8000000); /* 128MB */
519 * Initialize the type handling stuff.
522 DEBUG_InitCVDataTypes();
525 * In some cases we can read the stabs information directly
526 * from the executable. If this is the case, we don't need
527 * to bother with trying to read a symbol file, as the stabs
528 * also have line number and local variable information.
529 * As long as gcc is used for the compiler, stabs will
530 * be the default. On SVr4, DWARF could be used, but we
531 * don't grok that yet, and in this case we fall back to using
534 if( DEBUG_ReadExecutableDbgInfo() == FALSE )
536 char *symfilename = "wine.sym";
538 if (-1 == stat(symfilename, &statbuf) )
539 symfilename = LIBDIR "wine.sym";
541 PROFILE_GetWineIniString( "wine", "SymbolTableFile", symfilename,
542 SymbolTableFile, sizeof(SymbolTableFile));
543 DEBUG_ReadSymbolTable( SymbolTableFile );
545 DEBUG_LoadEntryPoints(NULL);
546 DEBUG_ProcessDeferredDebug();
550 if (DEBUG_LoadEntryPoints("Loading new modules symbols:\n"))
551 DEBUG_ProcessDeferredDebug();
555 fprintf(stderr, "Entering debugger PC=%x, mode=%d, count=%d\n",
556 EIP_reg(&DEBUG_context),
557 dbg_exec_mode, dbg_exec_count);
562 if (!is_debug || !DEBUG_ShouldContinue( dbg_exec_mode, &dbg_exec_count ))
565 TDB *pTask = (TDB*)GlobalLock16( GetCurrentTask() );
567 addr.seg = CS_reg(&DEBUG_context);
568 addr.off = EIP_reg(&DEBUG_context);
569 if (ISV86(&DEBUG_context)) addr.seg |= (DWORD)(pTask?(pTask->hModule):0)<<16;
571 DBG_FIX_ADDR_SEG( &addr, 0 );
573 GlobalUnlock16( GetCurrentTask() );
575 DEBUG_Freeze( TRUE );
577 /* Put the display in a correct state */
578 USER_Driver->pBeginDebugging();
580 newmode = ISV86(&DEBUG_context) ? 16 : IS_SELECTOR_32BIT(addr.seg) ? 32 : 16;
581 if (newmode != dbg_mode)
582 fprintf(stderr,"In %d bit mode.\n", dbg_mode = newmode);
586 if (!is_debug) /* This is a real crash, dump some info */
588 DEBUG_InfoRegisters();
592 LDT_Print( SELECTOR_TO_ENTRY(DS_reg(&DEBUG_context)), 1 );
593 if (ES_reg(&DEBUG_context) != DS_reg(&DEBUG_context))
594 LDT_Print( SELECTOR_TO_ENTRY(ES_reg(&DEBUG_context)), 1 );
596 LDT_Print( SELECTOR_TO_ENTRY(FS_reg(&DEBUG_context)), 1 );
602 * Do a quiet backtrace so that we have an idea of what the situation
603 * is WRT the source files.
605 DEBUG_SilentBackTrace();
609 (dbg_exec_mode == EXEC_STEPI_OVER) ||
610 (dbg_exec_mode == EXEC_STEPI_INSTR))
612 /* Show where we crashed */
614 DEBUG_PrintAddress( &addr, dbg_mode, TRUE );
615 fprintf(stderr,": ");
616 if (DBG_CHECK_READ_PTR( &addr, 1 ))
618 DEBUG_Disasm( &addr, TRUE );
619 fprintf(stderr,"\n");
629 addr.seg = CS_reg(&DEBUG_context) | (addr.seg&0xffff0000);
630 addr.off = EIP_reg(&DEBUG_context);
631 DBG_FIX_ADDR_SEG( &addr, 0 );
632 ret_ok = DEBUG_ValidateRegisters();
633 if (ret_ok) ret_ok = DBG_CHECK_READ_PTR( &addr, 1 );
637 dbg_exec_mode = DEBUG_RestartExecution( dbg_exec_mode, dbg_exec_count );
639 * This will have gotten absorbed into the breakpoint info
640 * if it was used. Otherwise it would have been ignored.
641 * In any case, we don't mess with it any more.
643 if ((dbg_exec_mode == EXEC_CONT) || (dbg_exec_mode == EXEC_PASS))
647 DEBUG_Freeze( FALSE );
652 USER_Driver->pEndDebugging();
656 DWORD wine_debugger( EXCEPTION_RECORD *rec, CONTEXT *context, BOOL first_chance )
658 BOOL is_debug = FALSE;
660 if (first_chance && !Options.debug) return 0; /* pass to app first */
662 switch(rec->ExceptionCode)
664 case EXCEPTION_BREAKPOINT:
665 case EXCEPTION_SINGLE_STEP:
669 if (!Options.debug) DEBUG_Exit(0);
675 /* print some infos */
676 fprintf( stderr, "%s: ",
677 first_chance ? "First chance exception" : "Unhandled exception" );
678 switch(rec->ExceptionCode)
680 case EXCEPTION_INT_DIVIDE_BY_ZERO:
681 fprintf( stderr, "divide by zero" );
683 case EXCEPTION_INT_OVERFLOW:
684 fprintf( stderr, "overflow" );
686 case EXCEPTION_ARRAY_BOUNDS_EXCEEDED:
687 fprintf( stderr, "array bounds " );
689 case EXCEPTION_ILLEGAL_INSTRUCTION:
690 fprintf( stderr, "illegal instruction" );
692 case EXCEPTION_STACK_OVERFLOW:
693 fprintf( stderr, "stack overflow" );
695 case EXCEPTION_PRIV_INSTRUCTION:
696 fprintf( stderr, "priviledged instruction" );
698 case EXCEPTION_ACCESS_VIOLATION:
699 if (rec->NumberParameters == 2)
700 fprintf( stderr, "page fault on %s access to 0x%08lx",
701 rec->ExceptionInformation[0] ? "write" : "read",
702 rec->ExceptionInformation[1] );
704 fprintf( stderr, "page fault" );
706 case EXCEPTION_DATATYPE_MISALIGNMENT:
707 fprintf( stderr, "Alignment" );
710 fprintf( stderr, "^C" );
713 fprintf( stderr, "%08lx", rec->ExceptionCode );
718 DEBUG_context = *context;
719 DEBUG_Main( is_debug );
720 *context = DEBUG_context;
721 return (dbg_exec_mode == EXEC_PASS) ? 0 : DBG_CONTINUE;
724 int yyerror(char * s)
726 fprintf(stderr,"%s\n", s);