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wine/debugger/dbg.y
Eric Pouech a88cae1a0b Allow loading of modules debug information after first invocation of 
debugger.
1999-10-23 18:55:02 +00:00

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%{
/*
* Parser for command lines in the Wine debugger
*
* Copyright 1993 Eric Youngdale
* Copyright 1995 Morten Welinder
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <signal.h>
#include <sys/stat.h>
#include <unistd.h>
#ifdef HAVE_ALLOCA_H
#include <alloca.h>
#endif
#include "winbase.h"
#include "module.h"
#include "task.h"
#include "options.h"
#include "queue.h"
#include "wine/winbase16.h"
#include "winnt.h"
#include "x11drv.h"
#include "win.h"
#include "debugger.h"
#include "neexe.h"
#include "process.h"
#include "server.h"
#include "main.h"
#include "expr.h"
#include "user.h"
extern FILE * yyin;
unsigned int dbg_mode = 0;
HANDLE dbg_heap = 0;
int curr_frame = 0;
static enum exec_mode dbg_exec_mode = EXEC_CONT;
static int dbg_exec_count = 0;
void issue_prompt(void);
void mode_command(int);
void flush_symbols(void);
int yylex(void);
int yyerror(char *);
#ifdef DBG_need_heap
#define malloc(x) DBG_alloc(x)
#define realloc(x,y) DBG_realloc(x,y)
#define free(x) DBG_free(x)
#endif
extern void VIRTUAL_Dump(void); /* memory/virtual.c */
%}
%union
{
DBG_ADDR address;
enum debug_regs reg;
char * string;
int integer;
struct list_id listing;
struct expr * expression;
struct datatype * type;
}
%token tCONT tPASS tSTEP tLIST tNEXT tQUIT tHELP tBACKTRACE tINFO tWALK tUP tDOWN
%token tENABLE tDISABLE tBREAK tDELETE tSET tMODE tPRINT tEXAM tABORT tDEBUGMSG
%token tCLASS tMAPS tMODULE tSTACK tSEGMENTS tREGS tWND tQUEUE tLOCAL
%token tPROCESS tMODREF
%token tEOL tSTRING tDEBUGSTR
%token tFRAME tSHARE tCOND tDISPLAY tUNDISPLAY tDISASSEMBLE
%token tSTEPI tNEXTI tFINISH tSHOW tDIR
%token <string> tPATH
%token <string> tIDENTIFIER tSTRING tDEBUGSTR
%token <integer> tNUM tFORMAT
%token <reg> tREG
%token tSYMBOLFILE
%token tCHAR tSHORT tINT tLONG tFLOAT tDOUBLE tUNSIGNED tSIGNED
%token tSTRUCT tUNION tENUM
/* %left ',' */
/* %left '=' OP_OR_EQUAL OP_XOR_EQUAL OP_AND_EQUAL OP_SHL_EQUAL \
OP_SHR_EQUAL OP_PLUS_EQUAL OP_MINUS_EQUAL \
OP_TIMES_EQUAL OP_DIVIDE_EQUAL OP_MODULO_EQUAL */
/* %left OP_COND */ /* ... ? ... : ... */
%left OP_LOR
%left OP_LAND
%left '|'
%left '^'
%left '&'
%left OP_EQ OP_NE
%left '<' '>' OP_LE OP_GE
%left OP_SHL OP_SHR
%left '+' '-'
%left '*' '/' '%'
%left OP_SIGN '!' '~' OP_DEREF /* OP_INC OP_DEC OP_ADDR */
%left '.' '[' OP_DRF
%nonassoc ':'
%type <expression> expr lval lvalue
%type <type> type_cast type_expr
%type <address> expr_addr lval_addr
%type <integer> expr_value
%type <string> pathname
%type <listing> list_arg
%%
input: line { issue_prompt(); }
| input line { issue_prompt(); }
line: command
| tEOL
| error tEOL { yyerrok; }
command:
tQUIT tEOL { DEBUG_Exit(0); }
| tHELP tEOL { DEBUG_Help(); }
| tHELP tINFO tEOL { DEBUG_HelpInfo(); }
| tCONT tEOL { dbg_exec_count = 1;
dbg_exec_mode = EXEC_CONT; return 0; }
| tPASS tEOL { dbg_exec_count = 1;
dbg_exec_mode = EXEC_PASS; return 0; }
| tCONT tNUM tEOL { dbg_exec_count = $2;
dbg_exec_mode = EXEC_CONT; return 0; }
| tSTEP tEOL { dbg_exec_count = 1;
dbg_exec_mode = EXEC_STEP_INSTR; return 0; }
| tNEXT tEOL { dbg_exec_count = 1;
dbg_exec_mode = EXEC_STEP_OVER; return 0; }
| tSTEP tNUM tEOL { dbg_exec_count = $2;
dbg_exec_mode = EXEC_STEP_INSTR; return 0; }
| tNEXT tNUM tEOL { dbg_exec_count = $2;
dbg_exec_mode = EXEC_STEP_OVER; return 0; }
| tSTEPI tEOL { dbg_exec_count = 1;
dbg_exec_mode = EXEC_STEPI_INSTR; return 0; }
| tNEXTI tEOL { dbg_exec_count = 1;
dbg_exec_mode = EXEC_STEPI_OVER; return 0; }
| tSTEPI tNUM tEOL { dbg_exec_count = $2;
dbg_exec_mode = EXEC_STEPI_INSTR; return 0; }
| tNEXTI tNUM tEOL { dbg_exec_count = $2;
dbg_exec_mode = EXEC_STEPI_OVER; return 0; }
| tABORT tEOL { kill(getpid(), SIGABRT); }
| tMODE tNUM tEOL { mode_command($2); }
| tENABLE tNUM tEOL { DEBUG_EnableBreakpoint( $2, TRUE ); }
| tDISABLE tNUM tEOL { DEBUG_EnableBreakpoint( $2, FALSE ); }
| tDELETE tBREAK tNUM tEOL { DEBUG_DelBreakpoint( $3 ); }
| tBACKTRACE tEOL { DEBUG_BackTrace(); }
| tUP tEOL { DEBUG_SetFrame( curr_frame + 1 ); }
| tUP tNUM tEOL { DEBUG_SetFrame( curr_frame + $2 ); }
| tDOWN tEOL { DEBUG_SetFrame( curr_frame - 1 ); }
| tDOWN tNUM tEOL { DEBUG_SetFrame( curr_frame - $2 ); }
| tFRAME tNUM tEOL { DEBUG_SetFrame( $2 ); }
| tFINISH tEOL { dbg_exec_count = 0;
dbg_exec_mode = EXEC_FINISH; return 0; }
| tSHOW tDIR tEOL { DEBUG_ShowDir(); }
| tDIR pathname tEOL { DEBUG_AddPath( $2 ); }
| tDIR tEOL { DEBUG_NukePath(); }
| tDISPLAY tEOL { DEBUG_InfoDisplay(); }
| tDISPLAY expr tEOL { DEBUG_AddDisplay($2, 1, 0); }
| tDISPLAY tFORMAT expr tEOL { DEBUG_AddDisplay($3, $2 >> 8, $2 & 0xff); }
| tDELETE tDISPLAY tNUM tEOL { DEBUG_DelDisplay( $3 ); }
| tDELETE tDISPLAY tEOL { DEBUG_DelDisplay( -1 ); }
| tUNDISPLAY tNUM tEOL { DEBUG_DelDisplay( $2 ); }
| tUNDISPLAY tEOL { DEBUG_DelDisplay( -1 ); }
| tCOND tNUM tEOL { DEBUG_AddBPCondition($2, NULL); }
| tCOND tNUM expr tEOL { DEBUG_AddBPCondition($2, $3); }
| tDEBUGMSG tDEBUGSTR tEOL { MAIN_ParseDebugOptions($2); }
| tSYMBOLFILE pathname tEOL{ DEBUG_ReadSymbolTable($2); }
| list_command
| disassemble_command
| set_command
| x_command
| print_command
| break_command
| info_command
| walk_command
set_command:
tSET tREG '=' expr_value tEOL { DEBUG_SetRegister( $2, $4 );
DEBUG_FreeExprMem(); }
| tSET lval_addr '=' expr_value tEOL { DEBUG_WriteMemory( &$2, $4 );
DEBUG_FreeExprMem(); }
pathname:
tIDENTIFIER { $$ = $1; }
| tPATH { $$ = $1; }
disassemble_command:
tDISASSEMBLE tEOL { DEBUG_Disassemble( NULL, NULL, 10 ); }
| tDISASSEMBLE expr_addr tEOL { DEBUG_Disassemble( & $2, NULL, 10 ); }
| tDISASSEMBLE expr_addr ',' expr_addr tEOL { DEBUG_Disassemble( & $2, & $4, 0 ); }
list_command:
tLIST tEOL { DEBUG_List( NULL, NULL, 10 ); }
| tLIST '-' tEOL { DEBUG_List( NULL, NULL, -10 ); }
| tLIST list_arg tEOL { DEBUG_List( & $2, NULL, 10 ); }
| tLIST ',' list_arg tEOL { DEBUG_List( NULL, & $3, -10 ); }
| tLIST list_arg ',' list_arg tEOL { DEBUG_List( & $2, & $4, 0 ); }
list_arg:
tNUM { $$.sourcefile = NULL; $$.line = $1; }
| pathname ':' tNUM { $$.sourcefile = $1; $$.line = $3; }
| tIDENTIFIER { DEBUG_GetFuncInfo( & $$, NULL, $1); }
| pathname ':' tIDENTIFIER { DEBUG_GetFuncInfo( & $$, $1, $3); }
| '*' expr_addr { DEBUG_FindNearestSymbol( & $2, FALSE, NULL,
0, & $$ );
DEBUG_FreeExprMem(); }
x_command:
tEXAM expr_addr tEOL { DEBUG_ExamineMemory( &$2, 1, 'x');
DEBUG_FreeExprMem(); }
| tEXAM tFORMAT expr_addr tEOL { DEBUG_ExamineMemory( &$3, $2>>8, $2&0xff );
DEBUG_FreeExprMem(); }
print_command:
tPRINT expr_addr tEOL { DEBUG_Print( &$2, 1, 0, 0 );
DEBUG_FreeExprMem(); }
| tPRINT tFORMAT expr_addr tEOL { DEBUG_Print( &$3, $2 >> 8, $2 & 0xff, 0 );
DEBUG_FreeExprMem(); }
break_command:
tBREAK '*' expr_addr tEOL { DEBUG_AddBreakpoint( &$3 );
DEBUG_FreeExprMem(); }
| tBREAK tIDENTIFIER tEOL { DBG_ADDR addr;
if( DEBUG_GetSymbolValue($2, -1, &addr, TRUE) )
{
DEBUG_AddBreakpoint( &addr );
}
else
{
fprintf(stderr,"Unable to add breakpoint\n");
}
}
| tBREAK tIDENTIFIER ':' tNUM tEOL { DBG_ADDR addr;
if( DEBUG_GetSymbolValue($2, $4, &addr, TRUE) )
{
DEBUG_AddBreakpoint( &addr );
}
else
{
fprintf(stderr,"Unable to add breakpoint\n");
}
}
| tBREAK tNUM tEOL { struct name_hash *nh;
DBG_ADDR addr;
TDB *pTask = (TDB*)GlobalLock16( GetCurrentTask() );
addr.type = NULL;
addr.seg = CS_reg(&DEBUG_context);
addr.off = EIP_reg(&DEBUG_context);
if (ISV86(&DEBUG_context))
addr.seg |= (DWORD)(pTask?(pTask->hModule):0)<<16;
DBG_FIX_ADDR_SEG( &addr, CS_reg(&DEBUG_context) );
GlobalUnlock16( GetCurrentTask() );
DEBUG_FindNearestSymbol(&addr, TRUE,
&nh, 0, NULL);
if( nh != NULL )
{
DEBUG_GetLineNumberAddr(nh,
$2, &addr, TRUE);
DEBUG_AddBreakpoint( &addr );
}
else
{
fprintf(stderr,"Unable to add breakpoint\n");
}
}
| tBREAK tEOL { DBG_ADDR addr;
TDB *pTask = (TDB*)GlobalLock16( GetCurrentTask() );
addr.type = NULL;
addr.seg = CS_reg(&DEBUG_context);
addr.off = EIP_reg(&DEBUG_context);
if (ISV86(&DEBUG_context))
addr.seg |= (DWORD)(pTask?(pTask->hModule):0)<<16;
GlobalUnlock16( GetCurrentTask() );
DEBUG_AddBreakpoint( &addr );
}
info_command:
tINFO tBREAK tEOL { DEBUG_InfoBreakpoints(); }
| tINFO tCLASS expr_value tEOL { CLASS_DumpClass( (struct tagCLASS *)$3 );
DEBUG_FreeExprMem(); }
| tINFO tSHARE tEOL { DEBUG_InfoShare(); }
| tINFO tMODULE expr_value tEOL { NE_DumpModule( $3 );
DEBUG_FreeExprMem(); }
| tINFO tQUEUE expr_value tEOL { QUEUE_DumpQueue( $3 );
DEBUG_FreeExprMem(); }
| tINFO tREGS tEOL { DEBUG_InfoRegisters(); }
| tINFO tSEGMENTS expr_value tEOL { LDT_Print( SELECTOR_TO_ENTRY($3), 1 );
DEBUG_FreeExprMem(); }
| tINFO tSEGMENTS tEOL { LDT_Print( 0, -1 ); }
| tINFO tSTACK tEOL { DEBUG_InfoStack(); }
| tINFO tMAPS tEOL { VIRTUAL_Dump(); }
| tINFO tWND expr_value tEOL { WIN_DumpWindow( $3 );
DEBUG_FreeExprMem(); }
| tINFO tLOCAL tEOL { DEBUG_InfoLocals(); }
| tINFO tDISPLAY tEOL { DEBUG_InfoDisplay(); }
walk_command:
tWALK tCLASS tEOL { CLASS_WalkClasses(); }
| tWALK tMODULE tEOL { NE_WalkModules(); }
| tWALK tQUEUE tEOL { QUEUE_WalkQueues(); }
| tWALK tWND tEOL { WIN_WalkWindows( 0, 0 ); }
| tWALK tWND tNUM tEOL { WIN_WalkWindows( $3, 0 ); }
| tWALK tPROCESS tEOL { PROCESS_WalkProcess(); }
| tWALK tMODREF expr_value tEOL { MODULE_WalkModref( $3 ); }
type_cast:
'(' type_expr ')' { $$ = $2; }
type_expr:
type_expr '*' { $$ = DEBUG_FindOrMakePointerType($1); }
| tINT { $$ = DEBUG_TypeCast(DT_BASIC, "int"); }
| tCHAR { $$ = DEBUG_TypeCast(DT_BASIC, "char"); }
| tLONG tINT { $$ = DEBUG_TypeCast(DT_BASIC, "long int"); }
| tUNSIGNED tINT { $$ = DEBUG_TypeCast(DT_BASIC, "unsigned int"); }
| tLONG tUNSIGNED tINT { $$ = DEBUG_TypeCast(DT_BASIC, "long unsigned int"); }
| tLONG tLONG tINT { $$ = DEBUG_TypeCast(DT_BASIC, "long long int"); }
| tLONG tLONG tUNSIGNED tINT { $$ = DEBUG_TypeCast(DT_BASIC, "long long unsigned int"); }
| tSHORT tINT { $$ = DEBUG_TypeCast(DT_BASIC, "short int"); }
| tSHORT tUNSIGNED tINT { $$ = DEBUG_TypeCast(DT_BASIC, "short unsigned int"); }
| tSIGNED tCHAR { $$ = DEBUG_TypeCast(DT_BASIC, "signed char"); }
| tUNSIGNED tCHAR { $$ = DEBUG_TypeCast(DT_BASIC, "unsigned char"); }
| tFLOAT { $$ = DEBUG_TypeCast(DT_BASIC, "float"); }
| tDOUBLE { $$ = DEBUG_TypeCast(DT_BASIC, "double"); }
| tLONG tDOUBLE { $$ = DEBUG_TypeCast(DT_BASIC, "long double"); }
| tSTRUCT tIDENTIFIER { $$ = DEBUG_TypeCast(DT_STRUCT, $2); }
| tUNION tIDENTIFIER { $$ = DEBUG_TypeCast(DT_STRUCT, $2); }
| tENUM tIDENTIFIER { $$ = DEBUG_TypeCast(DT_ENUM, $2); }
expr_addr:
expr { $$ = DEBUG_EvalExpr($1); }
expr_value:
expr { DBG_ADDR addr = DEBUG_EvalExpr($1);
$$ = addr.off ? *(unsigned int *) addr.off : 0; }
/*
* The expr rule builds an expression tree. When we are done, we call
* EvalExpr to evaluate the value of the expression. The advantage of
* the two-step approach is that it is possible to save expressions for
* use in 'display' commands, and in conditional watchpoints.
*/
expr:
tNUM { $$ = DEBUG_ConstExpr($1); }
| tSTRING { $$ = DEBUG_StringExpr($1); }
| tREG { $$ = DEBUG_RegisterExpr($1); }
| tIDENTIFIER { $$ = DEBUG_SymbolExpr($1); }
| expr OP_DRF tIDENTIFIER { $$ = DEBUG_StructPExpr($1, $3); }
| expr '.' tIDENTIFIER { $$ = DEBUG_StructExpr($1, $3); }
| tIDENTIFIER '(' ')' { $$ = DEBUG_CallExpr($1, 0); }
| tIDENTIFIER '(' expr ')' { $$ = DEBUG_CallExpr($1, 1, $3); }
| tIDENTIFIER '(' expr ',' expr ')' { $$ = DEBUG_CallExpr($1, 2, $3,
$5); }
| tIDENTIFIER '(' expr ',' expr ',' expr ')' { $$ = DEBUG_CallExpr($1, 3, $3, $5, $7); }
| tIDENTIFIER '(' expr ',' expr ',' expr ',' expr ')' { $$ = DEBUG_CallExpr($1, 3, $3, $5, $7, $9); }
| tIDENTIFIER '(' expr ',' expr ',' expr ',' expr ',' expr ')' { $$ = DEBUG_CallExpr($1, 3, $3, $5, $7, $9, $11); }
| expr '[' expr ']' { $$ = DEBUG_BinopExpr(EXP_OP_ARR, $1, $3); }
| expr ':' expr { $$ = DEBUG_BinopExpr(EXP_OP_SEG, $1, $3); }
| expr OP_LOR expr { $$ = DEBUG_BinopExpr(EXP_OP_LOR, $1, $3); }
| expr OP_LAND expr { $$ = DEBUG_BinopExpr(EXP_OP_LAND, $1, $3); }
| expr '|' expr { $$ = DEBUG_BinopExpr(EXP_OP_OR, $1, $3); }
| expr '&' expr { $$ = DEBUG_BinopExpr(EXP_OP_AND, $1, $3); }
| expr '^' expr { $$ = DEBUG_BinopExpr(EXP_OP_XOR, $1, $3); }
| expr OP_EQ expr { $$ = DEBUG_BinopExpr(EXP_OP_EQ, $1, $3); }
| expr '>' expr { $$ = DEBUG_BinopExpr(EXP_OP_GT, $1, $3); }
| expr '<' expr { $$ = DEBUG_BinopExpr(EXP_OP_LT, $1, $3); }
| expr OP_GE expr { $$ = DEBUG_BinopExpr(EXP_OP_GE, $1, $3); }
| expr OP_LE expr { $$ = DEBUG_BinopExpr(EXP_OP_LE, $1, $3); }
| expr OP_NE expr { $$ = DEBUG_BinopExpr(EXP_OP_NE, $1, $3); }
| expr OP_SHL expr { $$ = DEBUG_BinopExpr(EXP_OP_SHL, $1, $3); }
| expr OP_SHR expr { $$ = DEBUG_BinopExpr(EXP_OP_SHR, $1, $3); }
| expr '+' expr { $$ = DEBUG_BinopExpr(EXP_OP_ADD, $1, $3); }
| expr '-' expr { $$ = DEBUG_BinopExpr(EXP_OP_SUB, $1, $3); }
| expr '*' expr { $$ = DEBUG_BinopExpr(EXP_OP_MUL, $1, $3); }
| expr '/' expr { $$ = DEBUG_BinopExpr(EXP_OP_DIV, $1, $3); }
| expr '%' expr { $$ = DEBUG_BinopExpr(EXP_OP_REM, $1, $3); }
| '-' expr %prec OP_SIGN { $$ = DEBUG_UnopExpr(EXP_OP_NEG, $2); }
| '+' expr %prec OP_SIGN { $$ = $2; }
| '!' expr { $$ = DEBUG_UnopExpr(EXP_OP_NOT, $2); }
| '~' expr { $$ = DEBUG_UnopExpr(EXP_OP_LNOT, $2); }
| '(' expr ')' { $$ = $2; }
| '*' expr %prec OP_DEREF { $$ = DEBUG_UnopExpr(EXP_OP_DEREF, $2); }
| '&' expr %prec OP_DEREF { $$ = DEBUG_UnopExpr(EXP_OP_ADDR, $2); }
| type_cast expr %prec OP_DEREF { $$ = DEBUG_TypeCastExpr($1, $2); }
/*
* The lvalue rule builds an expression tree. This is a limited form
* of expression that is suitable to be used as an lvalue.
*/
lval_addr:
lval { $$ = DEBUG_EvalExpr($1); }
lval:
lvalue { $$ = $1; }
| '*' expr { $$ = DEBUG_UnopExpr(EXP_OP_FORCE_DEREF, $2); }
lvalue:
tNUM { $$ = DEBUG_ConstExpr($1); }
| tREG { $$ = DEBUG_RegisterExpr($1); }
| tIDENTIFIER { $$ = DEBUG_SymbolExpr($1); }
| lvalue OP_DRF tIDENTIFIER { $$ = DEBUG_StructPExpr($1, $3); }
| lvalue '.' tIDENTIFIER { $$ = DEBUG_StructExpr($1, $3); }
| lvalue '[' expr ']' { $$ = DEBUG_BinopExpr(EXP_OP_ARR, $1, $3); }
%%
void
issue_prompt(){
#ifdef DONT_USE_READLINE
fprintf(stderr,"Wine-dbg>");
#endif
}
void mode_command(int newmode)
{
if ((newmode == 16) || (newmode == 32)) dbg_mode = newmode;
else fprintf(stderr,"Invalid mode (use 16 or 32)\n");
}
/***********************************************************************
* DEBUG_Freeze
*/
static void DEBUG_Freeze( BOOL freeze )
{
static BOOL frozen = FALSE;
if ( freeze && !frozen )
{
/* Don't freeze thread currently holding the X crst! */
EnterCriticalSection( &X11DRV_CritSection );
CLIENT_DebuggerRequest( DEBUGGER_FREEZE_ALL );
LeaveCriticalSection( &X11DRV_CritSection );
frozen = TRUE;
}
if ( !freeze && frozen )
{
CLIENT_DebuggerRequest( DEBUGGER_UNFREEZE_ALL );
frozen = FALSE;
}
}
/***********************************************************************
* DEBUG_Exit
*
* Kill current process.
*/
void DEBUG_Exit( DWORD exit_code )
{
DEBUG_Freeze( FALSE );
TASK_KillTask( 0 ); /* FIXME: should not be necessary */
TerminateProcess( GetCurrentProcess(), exit_code );
}
/***********************************************************************
* DEBUG_Main
*
* Debugger main loop.
*/
static void DEBUG_Main( BOOL is_debug )
{
static int loaded_symbols = 0;
static BOOL in_debugger = FALSE;
char SymbolTableFile[256];
int newmode;
BOOL ret_ok;
#ifdef YYDEBUG
yydebug = 0;
#endif
if (in_debugger)
{
fprintf( stderr, " inside debugger, exiting.\n" );
DEBUG_Exit(1);
}
in_debugger = TRUE;
yyin = stdin;
DEBUG_SetBreakpoints( FALSE );
if (!is_debug)
{
if (IS_SELECTOR_SYSTEM(CS_reg(&DEBUG_context)))
fprintf( stderr, " in 32-bit code (0x%08lx).\n", EIP_reg(&DEBUG_context));
else
fprintf( stderr, " in 16-bit code (%04x:%04lx).\n",
(WORD)CS_reg(&DEBUG_context), EIP_reg(&DEBUG_context) );
}
if (!loaded_symbols)
{
loaded_symbols++;
DEBUG_Freeze( TRUE );
#ifdef DBG_need_heap
/*
* Initialize the debugger heap.
*/
dbg_heap = HeapCreate(HEAP_NO_SERIALIZE, 0x1000, 0x8000000); /* 128MB */
#endif
/*
* Initialize the type handling stuff.
*/
DEBUG_InitTypes();
DEBUG_InitCVDataTypes();
/*
* In some cases we can read the stabs information directly
* from the executable. If this is the case, we don't need
* to bother with trying to read a symbol file, as the stabs
* also have line number and local variable information.
* As long as gcc is used for the compiler, stabs will
* be the default. On SVr4, DWARF could be used, but we
* don't grok that yet, and in this case we fall back to using
* the wine.sym file.
*/
if( DEBUG_ReadExecutableDbgInfo() == FALSE )
{
char *symfilename = "wine.sym";
struct stat statbuf;
if (-1 == stat(symfilename, &statbuf) )
symfilename = LIBDIR "wine.sym";
PROFILE_GetWineIniString( "wine", "SymbolTableFile", symfilename,
SymbolTableFile, sizeof(SymbolTableFile));
DEBUG_ReadSymbolTable( SymbolTableFile );
}
DEBUG_LoadEntryPoints(NULL);
DEBUG_ProcessDeferredDebug();
}
else
{
if (DEBUG_LoadEntryPoints("Loading new modules symbols:\n"))
DEBUG_ProcessDeferredDebug();
}
#if 0
fprintf(stderr, "Entering debugger PC=%x, mode=%d, count=%d\n",
EIP_reg(&DEBUG_context),
dbg_exec_mode, dbg_exec_count);
sleep(1);
#endif
if (!is_debug || !DEBUG_ShouldContinue( dbg_exec_mode, &dbg_exec_count ))
{
DBG_ADDR addr;
TDB *pTask = (TDB*)GlobalLock16( GetCurrentTask() );
addr.seg = CS_reg(&DEBUG_context);
addr.off = EIP_reg(&DEBUG_context);
if (ISV86(&DEBUG_context)) addr.seg |= (DWORD)(pTask?(pTask->hModule):0)<<16;
addr.type = NULL;
DBG_FIX_ADDR_SEG( &addr, 0 );
GlobalUnlock16( GetCurrentTask() );
DEBUG_Freeze( TRUE );
/* Put the display in a correct state */
USER_Driver->pBeginDebugging();
newmode = ISV86(&DEBUG_context) ? 16 : IS_SELECTOR_32BIT(addr.seg) ? 32 : 16;
if (newmode != dbg_mode)
fprintf(stderr,"In %d bit mode.\n", dbg_mode = newmode);
DEBUG_DoDisplay();
if (!is_debug) /* This is a real crash, dump some info */
{
DEBUG_InfoRegisters();
DEBUG_InfoStack();
if (dbg_mode == 16)
{
LDT_Print( SELECTOR_TO_ENTRY(DS_reg(&DEBUG_context)), 1 );
if (ES_reg(&DEBUG_context) != DS_reg(&DEBUG_context))
LDT_Print( SELECTOR_TO_ENTRY(ES_reg(&DEBUG_context)), 1 );
}
LDT_Print( SELECTOR_TO_ENTRY(FS_reg(&DEBUG_context)), 1 );
DEBUG_BackTrace();
}
else
{
/*
* Do a quiet backtrace so that we have an idea of what the situation
* is WRT the source files.
*/
DEBUG_SilentBackTrace();
}
if (!is_debug ||
(dbg_exec_mode == EXEC_STEPI_OVER) ||
(dbg_exec_mode == EXEC_STEPI_INSTR))
{
/* Show where we crashed */
curr_frame = 0;
DEBUG_PrintAddress( &addr, dbg_mode, TRUE );
fprintf(stderr,": ");
if (DBG_CHECK_READ_PTR( &addr, 1 ))
{
DEBUG_Disasm( &addr, TRUE );
fprintf(stderr,"\n");
}
}
ret_ok = 0;
do
{
issue_prompt();
yyparse();
flush_symbols();
addr.seg = CS_reg(&DEBUG_context) | (addr.seg&0xffff0000);
addr.off = EIP_reg(&DEBUG_context);
DBG_FIX_ADDR_SEG( &addr, 0 );
ret_ok = DEBUG_ValidateRegisters();
if (ret_ok) ret_ok = DBG_CHECK_READ_PTR( &addr, 1 );
} while (!ret_ok);
}
dbg_exec_mode = DEBUG_RestartExecution( dbg_exec_mode, dbg_exec_count );
/*
* This will have gotten absorbed into the breakpoint info
* if it was used. Otherwise it would have been ignored.
* In any case, we don't mess with it any more.
*/
if ((dbg_exec_mode == EXEC_CONT) || (dbg_exec_mode == EXEC_PASS))
{
dbg_exec_count = 0;
DEBUG_Freeze( FALSE );
}
in_debugger = FALSE;
USER_Driver->pEndDebugging();
}
DWORD wine_debugger( EXCEPTION_RECORD *rec, CONTEXT *context, BOOL first_chance )
{
BOOL is_debug = FALSE;
if (first_chance && !Options.debug) return 0; /* pass to app first */
switch(rec->ExceptionCode)
{
case EXCEPTION_BREAKPOINT:
case EXCEPTION_SINGLE_STEP:
is_debug = TRUE;
break;
case CONTROL_C_EXIT:
if (!Options.debug) DEBUG_Exit(0);
break;
}
if (!is_debug)
{
/* print some infos */
fprintf( stderr, "%s: ",
first_chance ? "First chance exception" : "Unhandled exception" );
switch(rec->ExceptionCode)
{
case EXCEPTION_INT_DIVIDE_BY_ZERO:
fprintf( stderr, "divide by zero" );
break;
case EXCEPTION_INT_OVERFLOW:
fprintf( stderr, "overflow" );
break;
case EXCEPTION_ARRAY_BOUNDS_EXCEEDED:
fprintf( stderr, "array bounds " );
break;
case EXCEPTION_ILLEGAL_INSTRUCTION:
fprintf( stderr, "illegal instruction" );
break;
case EXCEPTION_STACK_OVERFLOW:
fprintf( stderr, "stack overflow" );
break;
case EXCEPTION_PRIV_INSTRUCTION:
fprintf( stderr, "priviledged instruction" );
break;
case EXCEPTION_ACCESS_VIOLATION:
if (rec->NumberParameters == 2)
fprintf( stderr, "page fault on %s access to 0x%08lx",
rec->ExceptionInformation[0] ? "write" : "read",
rec->ExceptionInformation[1] );
else
fprintf( stderr, "page fault" );
break;
case EXCEPTION_DATATYPE_MISALIGNMENT:
fprintf( stderr, "Alignment" );
break;
case CONTROL_C_EXIT:
fprintf( stderr, "^C" );
break;
default:
fprintf( stderr, "%08lx", rec->ExceptionCode );
break;
}
}
DEBUG_context = *context;
DEBUG_Main( is_debug );
*context = DEBUG_context;
return (dbg_exec_mode == EXEC_PASS) ? 0 : DBG_CONTINUE;
}
int yyerror(char * s)
{
fprintf(stderr,"%s\n", s);
return 0;
}
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