Sweden-Number/debugger/dbg.y

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Plaintext

%{
/*
* Parser for command lines in the Wine debugger
*
* Copyright 1993 Eric Youngdale
* Copyright 1995 Morten Welinder
* Copyright 2000 Eric Pouech
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <signal.h>
#include <unistd.h>
#include "wine/exception.h"
#include "debugger.h"
#include "expr.h"
#include "msvcrt/excpt.h"
extern FILE * yyin;
static void mode_command(int);
int yylex(void);
int yyerror(char *);
%}
%union
{
DBG_VALUE value;
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 tWATCH tDELETE tSET tMODE tPRINT tEXAM tABORT tVM86
%token tCLASS tMAPS tMODULE tSTACK tSEGMENTS tREGS tWND tQUEUE tLOCAL
%token tPROCESS tTHREAD tMODREF tEOL
%token tFRAME tSHARE tCOND tDISPLAY tUNDISPLAY tDISASSEMBLE
%token tSTEPI tNEXTI tFINISH tSHOW tDIR tWHATIS
%token <string> tPATH
%token <string> tIDENTIFIER tSTRING tDEBUGSTR tINTVAR
%token <integer> tNUM tFORMAT
%token tSYMBOLFILE tRUN tATTACH tDETACH tNOPROCESS
%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_expr
%type <value> expr_addr lval_addr
%type <integer> expr_value
%type <string> pathname identifier
%type <listing> list_arg
%%
input: line
| input line
;
line: command
| tEOL
| error tEOL { yyerrok; }
;
command:
tQUIT tEOL { DEBUG_ExitMode = EXIT_QUIT; return 1; }
| tHELP tEOL { DEBUG_Help(); }
| tHELP tINFO tEOL { DEBUG_HelpInfo(); }
| tCONT tEOL { DEBUG_CurrThread->exec_count = 1;
DEBUG_CurrThread->exec_mode = EXEC_CONT; return 1; }
| tPASS tEOL { DEBUG_ExitMode = EXIT_PASS; return 1; }
| tCONT tNUM tEOL { DEBUG_CurrThread->exec_count = $2;
DEBUG_CurrThread->exec_mode = EXEC_CONT; return 1; }
| tSTEP tEOL { DEBUG_CurrThread->exec_count = 1;
DEBUG_CurrThread->exec_mode = EXEC_STEP_INSTR; return 1; }
| tNEXT tEOL { DEBUG_CurrThread->exec_count = 1;
DEBUG_CurrThread->exec_mode = EXEC_STEP_OVER; return 1; }
| tSTEP tNUM tEOL { DEBUG_CurrThread->exec_count = $2;
DEBUG_CurrThread->exec_mode = EXEC_STEP_INSTR; return 1; }
| tNEXT tNUM tEOL { DEBUG_CurrThread->exec_count = $2;
DEBUG_CurrThread->exec_mode = EXEC_STEP_OVER; return 1; }
| tSTEPI tEOL { DEBUG_CurrThread->exec_count = 1;
DEBUG_CurrThread->exec_mode = EXEC_STEPI_INSTR; return 1; }
| tNEXTI tEOL { DEBUG_CurrThread->exec_count = 1;
DEBUG_CurrThread->exec_mode = EXEC_STEPI_OVER; return 1; }
| tSTEPI tNUM tEOL { DEBUG_CurrThread->exec_count = $2;
DEBUG_CurrThread->exec_mode = EXEC_STEPI_INSTR; return 1; }
| tNEXTI tNUM tEOL { DEBUG_CurrThread->exec_count = $2;
DEBUG_CurrThread->exec_mode = EXEC_STEPI_OVER; return 1; }
| tABORT tEOL { kill(getpid(), SIGABRT); }
| tMODE tNUM tEOL { mode_command($2); }
| tMODE tVM86 tEOL { DEBUG_CurrThread->dbg_mode = MODE_VM86; }
| 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(DEBUG_CurrTid, TRUE); }
| tBACKTRACE tNUM tEOL { DEBUG_BackTrace($2, TRUE); }
| 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 { DEBUG_CurrThread->exec_count = 0;
DEBUG_CurrThread->exec_mode = EXEC_FINISH; return 1; }
| 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); }
| tSYMBOLFILE pathname tEOL { DEBUG_ReadSymbolTable($2); }
| tWHATIS expr_addr tEOL { DEBUG_PrintType(&$2); DEBUG_FreeExprMem(); }
| tATTACH tNUM tEOL { if (DEBUG_Attach($2, FALSE)) return 1; }
| tDETACH tEOL { DEBUG_ExitMode = EXIT_DETACH; return 1; }
| list_command
| disassemble_command
| set_command
| x_command
| print_command
| break_command
| watch_command
| info_command
| walk_command
| run_command
| noprocess_state
;
set_command: 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.addr, 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, NULL ); DEBUG_FreeExprMem(); }
| tBREAK identifier tEOL { DEBUG_AddBreakpointFromId($2, -1); }
| tBREAK identifier ':' tNUM tEOL { DEBUG_AddBreakpointFromId($2, $4); }
| tBREAK tNUM tEOL { DEBUG_AddBreakpointFromLineno($2); }
| tBREAK tEOL { DEBUG_AddBreakpointFromLineno(-1); }
;
watch_command:
tWATCH '*' expr_addr tEOL { DEBUG_AddWatchpoint( &$3, 1 ); DEBUG_FreeExprMem(); }
| tWATCH identifier tEOL { DEBUG_AddWatchpointFromId($2); }
;
info_command:
tINFO tBREAK tEOL { DEBUG_InfoBreakpoints(); }
| tINFO tCLASS tSTRING tEOL { DEBUG_InfoClass( $3 ); }
| tINFO tSHARE tEOL { DEBUG_InfoShare(); }
| tINFO tMODULE expr_value tEOL { DEBUG_DumpModule( $3 ); DEBUG_FreeExprMem(); }
| tINFO tQUEUE expr_value tEOL { DEBUG_DumpQueue( $3 ); DEBUG_FreeExprMem(); }
| tINFO tREGS tEOL { DEBUG_InfoRegisters(); }
| tINFO tSEGMENTS expr_value tEOL { DEBUG_InfoSegments( $3, 1 ); DEBUG_FreeExprMem(); }
| tINFO tSEGMENTS tEOL { DEBUG_InfoSegments( 0, -1 ); }
| tINFO tSTACK tEOL { DEBUG_InfoStack(); }
| tINFO tMAPS tEOL { DEBUG_InfoVirtual(); }
| tINFO tWND expr_value tEOL{ DEBUG_InfoWindow( (HWND)$3 ); DEBUG_FreeExprMem(); }
| tINFO tLOCAL tEOL { DEBUG_InfoLocals(); }
| tINFO tDISPLAY tEOL { DEBUG_InfoDisplay(); }
;
walk_command:
tWALK tCLASS tEOL { DEBUG_WalkClasses(); }
| tWALK tMODULE tEOL { DEBUG_WalkModules(); }
| tWALK tQUEUE tEOL { DEBUG_WalkQueues(); }
| tWALK tWND tEOL { DEBUG_WalkWindows( 0, 0 ); }
| tWALK tWND tNUM tEOL { DEBUG_WalkWindows( (HWND)$3, 0 ); }
| tWALK tPROCESS tEOL { DEBUG_WalkProcess(); }
| tWALK tTHREAD tEOL { DEBUG_WalkThreads(); }
| tWALK tMODREF expr_value tEOL { DEBUG_WalkModref( $3 ); DEBUG_FreeExprMem(); }
;
run_command:
tRUN tEOL { DEBUG_Run(NULL); }
| tRUN tSTRING tEOL { DEBUG_Run($2); }
;
noprocess_state:
tNOPROCESS tEOL {} /* <CR> shall not barf anything */
| tNOPROCESS tSTRING tEOL { DEBUG_Printf(DBG_CHN_MESG, "No process loaded, cannot execute '%s'\n", $2); }
;
type_expr:
type_expr '*' { $$ = $1 ? DEBUG_FindOrMakePointerType($1) : NULL; }
| tINT { $$ = DEBUG_GetBasicType(DT_BASIC_INT); }
| tCHAR { $$ = DEBUG_GetBasicType(DT_BASIC_CHAR); }
| tLONG tINT { $$ = DEBUG_GetBasicType(DT_BASIC_LONGINT); }
| tUNSIGNED tINT { $$ = DEBUG_GetBasicType(DT_BASIC_UINT); }
| tLONG tUNSIGNED tINT { $$ = DEBUG_GetBasicType(DT_BASIC_ULONGINT); }
| tLONG tLONG tINT { $$ = DEBUG_GetBasicType(DT_BASIC_LONGLONGINT); }
| tLONG tLONG tUNSIGNED tINT{ $$ = DEBUG_GetBasicType(DT_BASIC_ULONGLONGINT); }
| tSHORT tINT { $$ = DEBUG_GetBasicType(DT_BASIC_SHORTINT); }
| tSHORT tUNSIGNED tINT { $$ = DEBUG_GetBasicType(DT_BASIC_USHORTINT); }
| tSIGNED tCHAR { $$ = DEBUG_GetBasicType(DT_BASIC_SCHAR); }
| tUNSIGNED tCHAR { $$ = DEBUG_GetBasicType(DT_BASIC_UCHAR); }
| tFLOAT { $$ = DEBUG_GetBasicType(DT_BASIC_FLOAT); }
| tDOUBLE { $$ = DEBUG_GetBasicType(DT_BASIC_DOUBLE); }
| tLONG tDOUBLE { $$ = DEBUG_GetBasicType(DT_BASIC_LONGDOUBLE); }
| 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_VALUE value = DEBUG_EvalExpr($1);
/* expr_value is typed as an integer */
$$ = DEBUG_ReadMemory(&value); }
;
/*
* The expr rule builds an expression tree. When we are done, we call
* EvalExpr to evaluate the value of the expression. The advantage of
* the two-step approach is that it is possible to save expressions for
* use in 'display' commands, and in conditional watchpoints.
*/
expr:
tNUM { $$ = DEBUG_ConstExpr($1); }
| tSTRING { $$ = DEBUG_StringExpr($1); }
| tINTVAR { $$ = DEBUG_IntVarExpr($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, 4, $3, $5, $7, $9); }
| tIDENTIFIER '(' expr ',' expr ',' expr ',' expr ',' expr ')' { $$ = DEBUG_CallExpr($1, 5, $3, $5, $7, $9, $11); }
| expr '[' expr ']' { $$ = 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_expr ')' expr %prec OP_DEREF { $$ = DEBUG_TypeCastExpr($2, $4); }
;
/*
* The lvalue rule builds an expression tree. This is a limited form
* of expression that is suitable to be used as an lvalue.
*/
lval_addr: lval { $$ = DEBUG_EvalExpr($1); }
;
lval: lvalue { $$ = $1; }
| '*' expr { $$ = DEBUG_UnopExpr(EXP_OP_FORCE_DEREF, $2); }
;
lvalue: tNUM { $$ = DEBUG_ConstExpr($1); }
| tINTVAR { $$ = DEBUG_IntVarExpr($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); }
;
identifier: tIDENTIFIER { $$ = $1; }
| identifier '.' tIDENTIFIER { char* ptr = DBG_alloc(strlen($1) + 1 + strlen($3)+ 1);
sprintf(ptr, "%s.%s", $1, $3); $$ = DEBUG_MakeSymbol(ptr);
DBG_free(ptr); }
| identifier ':' ':' tIDENTIFIER { char* ptr = DBG_alloc(strlen($1) + 2 + strlen($4) + 1);
sprintf(ptr, "%s::%s", $1, $4); $$ = DEBUG_MakeSymbol(ptr);
DBG_free(ptr); }
;
%%
static void mode_command(int newmode)
{
switch(newmode)
{
case 16: DEBUG_CurrThread->dbg_mode = MODE_16; break;
case 32: DEBUG_CurrThread->dbg_mode = MODE_32; break;
default: DEBUG_Printf(DBG_CHN_MESG,"Invalid mode (use 16, 32 or vm86)\n");
}
}
void DEBUG_Exit(DWORD ec)
{
ExitProcess(ec);
}
static WINE_EXCEPTION_FILTER(wine_dbg_cmd)
{
DEBUG_Printf(DBG_CHN_MESG, "\nwine_dbg_cmd: ");
switch (GetExceptionCode()) {
case DEBUG_STATUS_INTERNAL_ERROR:
DEBUG_Printf(DBG_CHN_MESG, "WineDbg internal error\n");
break;
case DEBUG_STATUS_NO_SYMBOL:
DEBUG_Printf(DBG_CHN_MESG, "Undefined symbol\n");
break;
case DEBUG_STATUS_DIV_BY_ZERO:
DEBUG_Printf(DBG_CHN_MESG, "Division by zero\n");
break;
case DEBUG_STATUS_BAD_TYPE:
DEBUG_Printf(DBG_CHN_MESG, "No type or type mismatch\n");
break;
case DEBUG_STATUS_NO_FIELD:
DEBUG_Printf(DBG_CHN_MESG, "No such field in structure or union\n");
break;
default:
DEBUG_Printf(DBG_CHN_MESG, "Exception %lx\n", GetExceptionCode());
break;
}
return EXCEPTION_EXECUTE_HANDLER;
}
/***********************************************************************
* DEBUG_Parser
*
* Debugger editline parser
*/
void DEBUG_Parser(void)
{
BOOL ret_ok;
#ifdef YYDEBUG
yydebug = 0;
#endif
yyin = stdin;
DEBUG_ExitMode = EXIT_CONTINUE;
ret_ok = FALSE;
do {
__TRY {
ret_ok = TRUE;
yyparse();
} __EXCEPT(wine_dbg_cmd) {
ret_ok = FALSE;
}
__ENDTRY;
DEBUG_FlushSymbols();
} while (!ret_ok);
}
int yyerror(char* s)
{
DEBUG_Printf(DBG_CHN_MESG, "%s\n", s);
return 0;
}