885 lines
28 KiB
C
885 lines
28 KiB
C
/*
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* File expr.c - expression handling for Wine internal debugger.
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*
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* Copyright (C) 1997, Eric Youngdale.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "config.h"
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#include <stdlib.h>
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#include <string.h>
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#include <stdarg.h>
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#include "debugger.h"
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#include "expr.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(winedbg);
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struct expr
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{
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unsigned int type;
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union
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{
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struct
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{
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int value;
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} s_const;
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struct
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{
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unsigned int value;
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} u_const;
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struct
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{
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const char* str;
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} string;
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struct
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{
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const char* name;
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} symbol;
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struct
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{
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const char* name;
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} intvar;
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struct
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{
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int unop_type;
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struct expr* exp1;
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long int result;
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} unop;
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struct
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{
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int binop_type;
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struct expr* exp1;
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struct expr* exp2;
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long int result;
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} binop;
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struct
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{
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struct type_expr_t cast_to;
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struct expr* expr;
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} cast;
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struct
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{
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struct expr* exp1;
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const char* element_name;
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long int result;
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} structure;
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struct
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{
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const char* funcname;
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int nargs;
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struct expr* arg[5];
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long int result;
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} call;
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} un;
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};
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#define EXPR_TYPE_S_CONST 0
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#define EXPR_TYPE_U_CONST 1
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#define EXPR_TYPE_SYMBOL 2
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#define EXPR_TYPE_INTVAR 3
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#define EXPR_TYPE_BINOP 4
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#define EXPR_TYPE_UNOP 5
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#define EXPR_TYPE_STRUCT 6
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#define EXPR_TYPE_PSTRUCT 7
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#define EXPR_TYPE_CALL 8
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#define EXPR_TYPE_STRING 9
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#define EXPR_TYPE_CAST 10
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static char expr_list[4096];
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static unsigned int next_expr_free = 0;
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static struct expr* expr_alloc(void)
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{
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struct expr* rtn;
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rtn = (struct expr*)&expr_list[next_expr_free];
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next_expr_free += sizeof(struct expr);
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assert(next_expr_free < sizeof(expr_list));
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return rtn;
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}
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void expr_free_all(void)
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{
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next_expr_free = 0;
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}
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struct expr* expr_alloc_typecast(struct type_expr_t* tet, struct expr* exp)
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{
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struct expr* ex;
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ex = expr_alloc();
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ex->type = EXPR_TYPE_CAST;
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ex->un.cast.cast_to = *tet;
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ex->un.cast.expr = exp;
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return ex;
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}
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struct expr* expr_alloc_internal_var(const char* name)
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{
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struct expr* ex;
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ex = expr_alloc();
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ex->type = EXPR_TYPE_INTVAR;
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ex->un.intvar.name = name;
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return ex;
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}
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struct expr* expr_alloc_symbol(const char* name)
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{
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struct expr* ex;
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ex = expr_alloc();
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ex->type = EXPR_TYPE_SYMBOL;
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ex->un.symbol.name = name;
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return ex;
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}
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struct expr* expr_alloc_sconstant(int value)
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{
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struct expr* ex;
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ex = expr_alloc();
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ex->type = EXPR_TYPE_S_CONST;
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ex->un.s_const.value = value;
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return ex;
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}
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struct expr* expr_alloc_uconstant(unsigned int value)
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{
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struct expr* ex;
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ex = expr_alloc();
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ex->type = EXPR_TYPE_U_CONST;
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ex->un.u_const.value = value;
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return ex;
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}
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struct expr* expr_alloc_string(const char* str)
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{
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struct expr* ex;
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ex = expr_alloc();
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ex->type = EXPR_TYPE_STRING;
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ex->un.string.str = str;
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return ex;
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}
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struct expr* expr_alloc_binary_op(int op_type, struct expr* exp1, struct expr* exp2)
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{
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struct expr* ex;
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ex = expr_alloc();
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ex->type = EXPR_TYPE_BINOP;
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ex->un.binop.binop_type = op_type;
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ex->un.binop.exp1 = exp1;
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ex->un.binop.exp2 = exp2;
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return ex;
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}
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struct expr* expr_alloc_unary_op(int op_type, struct expr* exp1)
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{
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struct expr* ex;
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ex = expr_alloc();
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ex->type = EXPR_TYPE_UNOP;
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ex->un.unop.unop_type = op_type;
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ex->un.unop.exp1 = exp1;
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return ex;
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}
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struct expr* expr_alloc_struct(struct expr* exp, const char* element)
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{
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struct expr* ex;
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ex = expr_alloc();
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ex->type = EXPR_TYPE_STRUCT;
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ex->un.structure.exp1 = exp;
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ex->un.structure.element_name = element;
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return ex;
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}
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struct expr* expr_alloc_pstruct(struct expr* exp, const char* element)
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{
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struct expr* ex;
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ex = expr_alloc();
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ex->type = EXPR_TYPE_PSTRUCT;
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ex->un.structure.exp1 = exp;
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ex->un.structure.element_name = element;
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return ex;
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}
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struct expr* expr_alloc_func_call(const char* funcname, int nargs, ...)
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{
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struct expr* ex;
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va_list ap;
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int i;
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ex = expr_alloc();
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ex->type = EXPR_TYPE_CALL;
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ex->un.call.funcname = funcname;
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ex->un.call.nargs = nargs;
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va_start(ap, nargs);
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for (i = 0; i < nargs; i++)
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{
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ex->un.call.arg[i] = va_arg(ap, struct expr*);
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}
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va_end(ap);
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return ex;
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}
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/******************************************************************
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* expr_eval
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*
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*/
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struct dbg_lvalue expr_eval(struct expr* exp)
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{
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struct dbg_lvalue rtn;
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int i;
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struct dbg_lvalue exp1;
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struct dbg_lvalue exp2;
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unsigned int cexp[5];
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DWORD64 scale1, scale2, scale3;
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struct dbg_type type1, type2;
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DWORD tag;
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const struct dbg_internal_var* div;
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rtn.cookie = 0;
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rtn.type.id = dbg_itype_none;
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rtn.type.module = 0;
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rtn.addr.Mode = AddrModeFlat;
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rtn.addr.Offset = 0;
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rtn.addr.Segment = 0;
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switch (exp->type)
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{
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case EXPR_TYPE_CAST:
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/* this is really brute force, we simply change the type... without
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* checking if this is right or not
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*/
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rtn = expr_eval(exp->un.cast.expr);
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switch (exp->un.cast.cast_to.type)
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{
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case type_expr_type_id:
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if (exp->un.cast.cast_to.u.type.id == dbg_itype_none)
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{
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dbg_printf("Can't cast to unknown type\n");
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RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
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}
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rtn.type = exp->un.cast.cast_to.u.type;
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break;
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case type_expr_udt_class:
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case type_expr_udt_struct:
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case type_expr_udt_union:
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rtn.type = types_find_type(rtn.type.module, exp->un.cast.cast_to.u.name,
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SymTagUDT);
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if (rtn.type.id == dbg_itype_none)
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{
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dbg_printf("Can't cast to UDT %s\n", exp->un.cast.cast_to.u.name);
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RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
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}
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break;
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case type_expr_enumeration:
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rtn.type = types_find_type(rtn.type.module, exp->un.cast.cast_to.u.name,
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SymTagEnum);
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if (rtn.type.id == dbg_itype_none)
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{
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dbg_printf("Can't cast to enumeration %s\n", exp->un.cast.cast_to.u.name);
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RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
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}
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break;
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default:
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dbg_printf("Unsupported cast type %u\n", exp->un.cast.cast_to.type);
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RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
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}
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for (i = 0; i < exp->un.cast.cast_to.deref_count; i++)
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{
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rtn.type = types_find_pointer(&rtn.type);
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if (rtn.type.id == dbg_itype_none)
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{
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dbg_printf("Cannot find pointer type\n");
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RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
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}
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}
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break;
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case EXPR_TYPE_STRING:
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rtn.cookie = DLV_HOST;
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rtn.type.id = dbg_itype_astring;
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rtn.type.module = 0;
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rtn.addr.Offset = (unsigned int)&exp->un.string.str;
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break;
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case EXPR_TYPE_U_CONST:
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rtn.cookie = DLV_HOST;
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rtn.type.id = dbg_itype_unsigned_int;
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rtn.type.module = 0;
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rtn.addr.Offset = (unsigned int)&exp->un.u_const.value;
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break;
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case EXPR_TYPE_S_CONST:
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rtn.cookie = DLV_HOST;
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rtn.type.id = dbg_itype_signed_int;
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rtn.type.module = 0;
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rtn.addr.Offset = (unsigned int)&exp->un.s_const.value;
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break;
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case EXPR_TYPE_SYMBOL:
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switch (symbol_get_lvalue(exp->un.symbol.name, -1, &rtn, FALSE))
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{
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case sglv_found:
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break;
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case sglv_unknown:
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RaiseException(DEBUG_STATUS_NO_SYMBOL, 0, 0, NULL);
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/* should never be here */
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case sglv_aborted:
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RaiseException(DEBUG_STATUS_ABORT, 0, 0, NULL);
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/* should never be here */
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}
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break;
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case EXPR_TYPE_PSTRUCT:
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exp1 = expr_eval(exp->un.structure.exp1);
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if (exp1.type.id == dbg_itype_none || !types_deref(&exp1, &rtn) ||
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rtn.type.id == dbg_itype_none)
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RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
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if (!types_udt_find_element(&rtn, exp->un.structure.element_name,
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&exp->un.structure.result))
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{
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dbg_printf("%s\n", exp->un.structure.element_name);
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RaiseException(DEBUG_STATUS_NO_FIELD, 0, 0, NULL);
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}
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break;
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case EXPR_TYPE_STRUCT:
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exp1 = expr_eval(exp->un.structure.exp1);
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if (exp1.type.id == dbg_itype_none) RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
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rtn = exp1;
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if (!types_udt_find_element(&rtn, exp->un.structure.element_name,
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&exp->un.structure.result))
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{
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dbg_printf("%s\n", exp->un.structure.element_name);
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RaiseException(DEBUG_STATUS_NO_FIELD, 0, 0, NULL);
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}
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break;
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case EXPR_TYPE_CALL:
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/*
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* First, evaluate all of the arguments. If any of them are not
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* evaluable, then bail.
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*/
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for (i = 0; i < exp->un.call.nargs; i++)
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{
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exp1 = expr_eval(exp->un.call.arg[i]);
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if (exp1.type.id == dbg_itype_none)
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RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
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cexp[i] = types_extract_as_integer(&exp1);
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}
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/*
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* Now look up the address of the function itself.
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*/
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switch (symbol_get_lvalue(exp->un.call.funcname, -1, &rtn, FALSE))
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{
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case sglv_found:
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break;
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case sglv_unknown:
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RaiseException(DEBUG_STATUS_NO_SYMBOL, 0, 0, NULL);
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/* should never be here */
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case sglv_aborted:
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RaiseException(DEBUG_STATUS_ABORT, 0, 0, NULL);
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/* should never be here */
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}
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#if 0
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/* FIXME: NEWDBG NIY */
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/* Anyway, I wonder how this could work depending on the calling order of
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* the function (cdecl vs pascal for example)
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*/
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int (*fptr)();
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fptr = (int (*)()) rtn.addr.off;
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switch (exp->un.call.nargs)
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{
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case 0:
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exp->un.call.result = (*fptr)();
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break;
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case 1:
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exp->un.call.result = (*fptr)(cexp[0]);
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break;
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case 2:
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exp->un.call.result = (*fptr)(cexp[0], cexp[1]);
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break;
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case 3:
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exp->un.call.result = (*fptr)(cexp[0], cexp[1], cexp[2]);
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break;
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case 4:
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exp->un.call.result = (*fptr)(cexp[0], cexp[1], cexp[2], cexp[3]);
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break;
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case 5:
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exp->un.call.result = (*fptr)(cexp[0], cexp[1], cexp[2], cexp[3], cexp[4]);
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break;
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}
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#else
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dbg_printf("Function call no longer implemented\n");
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/* would need to set up a call to this function, and then restore the current
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* context afterwards...
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*/
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exp->un.call.result = 0;
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#endif
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rtn.cookie = DLV_HOST;
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/* get return type from function signature tupe */
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types_get_info(&rtn.type, TI_GET_TYPE, &rtn.type.id);
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rtn.addr.Offset = (unsigned int)&exp->un.call.result;
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break;
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case EXPR_TYPE_INTVAR:
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rtn.cookie = DLV_HOST;
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if (!(div = dbg_get_internal_var(exp->un.intvar.name)))
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RaiseException(DEBUG_STATUS_NO_SYMBOL, 0, 0, NULL);
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rtn.type.id = div->typeid;
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rtn.type.module = 0;
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rtn.addr.Offset = (unsigned int)div->pval;
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break;
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case EXPR_TYPE_BINOP:
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rtn.cookie = DLV_HOST;
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exp1 = expr_eval(exp->un.binop.exp1);
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exp2 = expr_eval(exp->un.binop.exp2);
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if (exp1.type.id == dbg_itype_none || exp2.type.id == dbg_itype_none)
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RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
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rtn.type.id = dbg_itype_signed_int;
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rtn.type.module = 0;
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rtn.addr.Offset = (unsigned int)&exp->un.binop.result;
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type1 = exp1.type;
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type2 = exp2.type;
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switch (exp->un.binop.binop_type)
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{
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case EXP_OP_ADD:
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if (!types_get_info(&exp1.type, TI_GET_SYMTAG, &tag) ||
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tag != SymTagPointerType ||
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!types_get_info(&exp1.type, TI_GET_TYPE, &type1.id))
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type1.id = dbg_itype_none;
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if (!types_get_info(&exp2.type, TI_GET_SYMTAG, &tag) ||
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tag != SymTagPointerType ||
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!types_get_info(&exp2.type, TI_GET_TYPE, &type2.id))
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type2.id = dbg_itype_none;
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scale1 = 1;
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scale2 = 1;
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if (type1.id != dbg_itype_none && type2.id != dbg_itype_none)
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RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
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if (type1.id != dbg_itype_none)
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{
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types_get_info(&type1, TI_GET_LENGTH, &scale2);
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rtn.type = exp1.type;
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}
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else if (type2.id != dbg_itype_none)
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{
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types_get_info(&type2, TI_GET_LENGTH, &scale1);
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rtn.type = exp2.type;
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}
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exp->un.binop.result = types_extract_as_integer(&exp1) * (DWORD)scale1 +
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(DWORD)scale2 * types_extract_as_integer(&exp2);
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break;
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case EXP_OP_SUB:
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if (!types_get_info(&exp1.type, TI_GET_SYMTAG, &tag) ||
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tag != SymTagPointerType ||
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!types_get_info(&exp1.type, TI_GET_TYPE, &type1.id))
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type1.id = dbg_itype_none;
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if (!types_get_info(&exp2.type, TI_GET_SYMTAG, &tag) ||
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tag != SymTagPointerType ||
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!types_get_info(&exp2.type, TI_GET_TYPE, &type2.id))
|
|
type2.id = dbg_itype_none;
|
|
scale1 = 1;
|
|
scale2 = 1;
|
|
scale3 = 1;
|
|
if (type1.id != dbg_itype_none && type2.id != dbg_itype_none)
|
|
{
|
|
WINE_FIXME("This may fail (if module base address are wrongly calculated)\n");
|
|
if (memcmp(&type1, &type2, sizeof(struct dbg_type)))
|
|
RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
|
|
types_get_info(&type1, TI_GET_LENGTH, &scale3);
|
|
}
|
|
else if (type1.id != dbg_itype_none)
|
|
{
|
|
types_get_info(&type1, TI_GET_LENGTH, &scale2);
|
|
rtn.type = exp1.type;
|
|
}
|
|
else if (type2.id != dbg_itype_none)
|
|
{
|
|
types_get_info(&type2, TI_GET_LENGTH, &scale1);
|
|
rtn.type = exp2.type;
|
|
}
|
|
exp->un.binop.result = (types_extract_as_integer(&exp1) * (DWORD)scale1 -
|
|
types_extract_as_integer(&exp2) * (DWORD)scale2) / (DWORD)scale3;
|
|
break;
|
|
case EXP_OP_SEG:
|
|
rtn.type.id = dbg_itype_segptr;
|
|
rtn.type.module = 0;
|
|
be_cpu->build_addr(dbg_curr_thread->handle, &dbg_context, &rtn.addr,
|
|
types_extract_as_integer(&exp1), types_extract_as_integer(&exp2));
|
|
break;
|
|
case EXP_OP_LOR:
|
|
exp->un.binop.result = (types_extract_as_integer(&exp1) || types_extract_as_integer(&exp2));
|
|
break;
|
|
case EXP_OP_LAND:
|
|
exp->un.binop.result = (types_extract_as_integer(&exp1) && types_extract_as_integer(&exp2));
|
|
break;
|
|
case EXP_OP_OR:
|
|
exp->un.binop.result = (types_extract_as_integer(&exp1) | types_extract_as_integer(&exp2));
|
|
break;
|
|
case EXP_OP_AND:
|
|
exp->un.binop.result = (types_extract_as_integer(&exp1) & types_extract_as_integer(&exp2));
|
|
break;
|
|
case EXP_OP_XOR:
|
|
exp->un.binop.result = (types_extract_as_integer(&exp1) ^ types_extract_as_integer(&exp2));
|
|
break;
|
|
case EXP_OP_EQ:
|
|
exp->un.binop.result = (types_extract_as_integer(&exp1) == types_extract_as_integer(&exp2));
|
|
break;
|
|
case EXP_OP_GT:
|
|
exp->un.binop.result = (types_extract_as_integer(&exp1) > types_extract_as_integer(&exp2));
|
|
break;
|
|
case EXP_OP_LT:
|
|
exp->un.binop.result = (types_extract_as_integer(&exp1) < types_extract_as_integer(&exp2));
|
|
break;
|
|
case EXP_OP_GE:
|
|
exp->un.binop.result = (types_extract_as_integer(&exp1) >= types_extract_as_integer(&exp2));
|
|
break;
|
|
case EXP_OP_LE:
|
|
exp->un.binop.result = (types_extract_as_integer(&exp1) <= types_extract_as_integer(&exp2));
|
|
break;
|
|
case EXP_OP_NE:
|
|
exp->un.binop.result = (types_extract_as_integer(&exp1) != types_extract_as_integer(&exp2));
|
|
break;
|
|
case EXP_OP_SHL:
|
|
exp->un.binop.result = ((unsigned long)types_extract_as_integer(&exp1) << types_extract_as_integer(&exp2));
|
|
break;
|
|
case EXP_OP_SHR:
|
|
exp->un.binop.result = ((unsigned long)types_extract_as_integer(&exp1) >> types_extract_as_integer(&exp2));
|
|
break;
|
|
case EXP_OP_MUL:
|
|
exp->un.binop.result = (types_extract_as_integer(&exp1) * types_extract_as_integer(&exp2));
|
|
break;
|
|
case EXP_OP_DIV:
|
|
if (types_extract_as_integer(&exp2) == 0) RaiseException(DEBUG_STATUS_DIV_BY_ZERO, 0, 0, NULL);
|
|
exp->un.binop.result = (types_extract_as_integer(&exp1) / types_extract_as_integer(&exp2));
|
|
break;
|
|
case EXP_OP_REM:
|
|
if (types_extract_as_integer(&exp2) == 0) RaiseException(DEBUG_STATUS_DIV_BY_ZERO, 0, 0, NULL);
|
|
exp->un.binop.result = (types_extract_as_integer(&exp1) % types_extract_as_integer(&exp2));
|
|
break;
|
|
case EXP_OP_ARR:
|
|
if (!types_array_index(&exp1, types_extract_as_integer(&exp2), &rtn))
|
|
RaiseException(DEBUG_STATUS_CANT_DEREF, 0, 0, NULL);
|
|
break;
|
|
default: RaiseException(DEBUG_STATUS_INTERNAL_ERROR, 0, 0, NULL);
|
|
}
|
|
break;
|
|
case EXPR_TYPE_UNOP:
|
|
rtn.cookie = DLV_HOST;
|
|
exp1 = expr_eval(exp->un.unop.exp1);
|
|
if (exp1.type.id == dbg_itype_none) RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
|
|
rtn.addr.Offset = (unsigned int)&exp->un.unop.result;
|
|
rtn.type.id = dbg_itype_signed_int;
|
|
rtn.type.module = 0;
|
|
switch (exp->un.unop.unop_type)
|
|
{
|
|
case EXP_OP_NEG:
|
|
exp->un.unop.result = -types_extract_as_integer(&exp1);
|
|
break;
|
|
case EXP_OP_NOT:
|
|
exp->un.unop.result = !types_extract_as_integer(&exp1);
|
|
break;
|
|
case EXP_OP_LNOT:
|
|
exp->un.unop.result = ~types_extract_as_integer(&exp1);
|
|
break;
|
|
case EXP_OP_DEREF:
|
|
if (!types_deref(&exp1, &rtn))
|
|
RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
|
|
break;
|
|
case EXP_OP_FORCE_DEREF:
|
|
rtn = exp1;
|
|
if (exp1.cookie == DLV_TARGET)
|
|
dbg_read_memory(memory_to_linear_addr(&exp1.addr), &rtn.addr.Offset, sizeof(rtn.addr.Offset));
|
|
break;
|
|
case EXP_OP_ADDR:
|
|
/* only do it on linear addresses */
|
|
if (exp1.addr.Mode != AddrModeFlat)
|
|
RaiseException(DEBUG_STATUS_CANT_DEREF, 0, 0, NULL);
|
|
exp->un.unop.result = (unsigned int)memory_to_linear_addr(&exp1.addr);
|
|
rtn.type = types_find_pointer(&exp1.type);
|
|
if (rtn.type.id == dbg_itype_none)
|
|
RaiseException(DEBUG_STATUS_CANT_DEREF, 0, 0, NULL);
|
|
break;
|
|
default: RaiseException(DEBUG_STATUS_INTERNAL_ERROR, 0, 0, NULL);
|
|
}
|
|
break;
|
|
default:
|
|
WINE_FIXME("Unexpected expression (%d).\n", exp->type);
|
|
RaiseException(DEBUG_STATUS_INTERNAL_ERROR, 0, 0, NULL);
|
|
break;
|
|
}
|
|
|
|
return rtn;
|
|
}
|
|
|
|
int expr_print(const struct expr* exp)
|
|
{
|
|
int i;
|
|
struct dbg_type type;
|
|
|
|
switch (exp->type)
|
|
{
|
|
case EXPR_TYPE_CAST:
|
|
WINE_FIXME("No longer supported (missing module base)\n");
|
|
dbg_printf("((");
|
|
switch (exp->un.cast.cast_to.type)
|
|
{
|
|
case type_expr_type_id:
|
|
type.module = 0;
|
|
type.id = exp->un.cast.cast_to.type;
|
|
types_print_type(&type, FALSE); break;
|
|
case type_expr_udt_class:
|
|
dbg_printf("class %s", exp->un.cast.cast_to.u.name); break;
|
|
case type_expr_udt_struct:
|
|
dbg_printf("struct %s", exp->un.cast.cast_to.u.name); break;
|
|
case type_expr_udt_union:
|
|
dbg_printf("union %s", exp->un.cast.cast_to.u.name); break;
|
|
case type_expr_enumeration:
|
|
dbg_printf("enum %s", exp->un.cast.cast_to.u.name); break;
|
|
}
|
|
for (i = 0; i < exp->un.cast.cast_to.deref_count; i++)
|
|
dbg_printf("*");
|
|
dbg_printf(")");
|
|
expr_print(exp->un.cast.expr);
|
|
dbg_printf(")");
|
|
break;
|
|
case EXPR_TYPE_INTVAR:
|
|
dbg_printf("$%s", exp->un.intvar.name);
|
|
break;
|
|
case EXPR_TYPE_U_CONST:
|
|
dbg_printf("%u", exp->un.u_const.value);
|
|
break;
|
|
case EXPR_TYPE_S_CONST:
|
|
dbg_printf("%d", exp->un.s_const.value);
|
|
break;
|
|
case EXPR_TYPE_STRING:
|
|
dbg_printf("\"%s\"", exp->un.string.str);
|
|
break;
|
|
case EXPR_TYPE_SYMBOL:
|
|
dbg_printf("%s" , exp->un.symbol.name);
|
|
break;
|
|
case EXPR_TYPE_PSTRUCT:
|
|
expr_print(exp->un.structure.exp1);
|
|
dbg_printf("->%s", exp->un.structure.element_name);
|
|
break;
|
|
case EXPR_TYPE_STRUCT:
|
|
expr_print(exp->un.structure.exp1);
|
|
dbg_printf(".%s", exp->un.structure.element_name);
|
|
break;
|
|
case EXPR_TYPE_CALL:
|
|
dbg_printf("%s(",exp->un.call.funcname);
|
|
for (i = 0; i < exp->un.call.nargs; i++)
|
|
{
|
|
expr_print(exp->un.call.arg[i]);
|
|
if (i != exp->un.call.nargs - 1) dbg_printf(", ");
|
|
}
|
|
dbg_printf(")");
|
|
break;
|
|
case EXPR_TYPE_BINOP:
|
|
dbg_printf("(");
|
|
expr_print(exp->un.binop.exp1);
|
|
switch (exp->un.binop.binop_type)
|
|
{
|
|
case EXP_OP_ADD: dbg_printf(" + "); break;
|
|
case EXP_OP_SUB: dbg_printf(" - "); break;
|
|
case EXP_OP_SEG: dbg_printf(":"); break;
|
|
case EXP_OP_LOR: dbg_printf(" || "); break;
|
|
case EXP_OP_LAND: dbg_printf(" && "); break;
|
|
case EXP_OP_OR: dbg_printf(" | "); break;
|
|
case EXP_OP_AND: dbg_printf(" & "); break;
|
|
case EXP_OP_XOR: dbg_printf(" ^ "); break;
|
|
case EXP_OP_EQ: dbg_printf(" == "); break;
|
|
case EXP_OP_GT: dbg_printf(" > "); break;
|
|
case EXP_OP_LT: dbg_printf(" < "); break;
|
|
case EXP_OP_GE: dbg_printf(" >= "); break;
|
|
case EXP_OP_LE: dbg_printf(" <= "); break;
|
|
case EXP_OP_NE: dbg_printf(" != "); break;
|
|
case EXP_OP_SHL: dbg_printf(" << "); break;
|
|
case EXP_OP_SHR: dbg_printf(" >> "); break;
|
|
case EXP_OP_MUL: dbg_printf(" * "); break;
|
|
case EXP_OP_DIV: dbg_printf(" / "); break;
|
|
case EXP_OP_REM: dbg_printf(" %% "); break;
|
|
case EXP_OP_ARR: dbg_printf("["); break;
|
|
default: break;
|
|
}
|
|
expr_print(exp->un.binop.exp2);
|
|
if (exp->un.binop.binop_type == EXP_OP_ARR) dbg_printf("]");
|
|
dbg_printf(")");
|
|
break;
|
|
case EXPR_TYPE_UNOP:
|
|
switch (exp->un.unop.unop_type)
|
|
{
|
|
case EXP_OP_NEG: dbg_printf("-"); break;
|
|
case EXP_OP_NOT: dbg_printf("!"); break;
|
|
case EXP_OP_LNOT: dbg_printf("~"); break;
|
|
case EXP_OP_DEREF: dbg_printf("*"); break;
|
|
case EXP_OP_ADDR: dbg_printf("&"); break;
|
|
}
|
|
expr_print(exp->un.unop.exp1);
|
|
break;
|
|
default:
|
|
WINE_FIXME("Unexpected expression (%u).\n", exp->type);
|
|
RaiseException(DEBUG_STATUS_INTERNAL_ERROR, 0, 0, NULL);
|
|
break;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
struct expr* expr_clone(const struct expr* exp, BOOL *local_binding)
|
|
{
|
|
int i;
|
|
struct expr* rtn;
|
|
|
|
rtn = HeapAlloc(GetProcessHeap(), 0, sizeof(struct expr));
|
|
|
|
/*
|
|
* First copy the contents of the expression itself.
|
|
*/
|
|
*rtn = *exp;
|
|
|
|
switch (exp->type)
|
|
{
|
|
case EXPR_TYPE_CAST:
|
|
rtn->un.cast.expr = expr_clone(exp->un.cast.expr, local_binding);
|
|
break;
|
|
case EXPR_TYPE_INTVAR:
|
|
rtn->un.intvar.name = strcpy(HeapAlloc(GetProcessHeap(), 0, strlen(exp->un.intvar.name) + 1), exp->un.intvar.name);
|
|
break;
|
|
case EXPR_TYPE_U_CONST:
|
|
case EXPR_TYPE_S_CONST:
|
|
break;
|
|
case EXPR_TYPE_STRING:
|
|
rtn->un.string.str = strcpy(HeapAlloc(GetProcessHeap(), 0, strlen(exp->un.string.str) + 1), exp->un.string.str);
|
|
break;
|
|
case EXPR_TYPE_SYMBOL:
|
|
rtn->un.symbol.name = strcpy(HeapAlloc(GetProcessHeap(), 0, strlen(exp->un.symbol.name) + 1), exp->un.symbol.name);
|
|
if (local_binding && symbol_is_local(exp->un.symbol.name))
|
|
*local_binding = TRUE;
|
|
break;
|
|
case EXPR_TYPE_PSTRUCT:
|
|
case EXPR_TYPE_STRUCT:
|
|
rtn->un.structure.exp1 = expr_clone(exp->un.structure.exp1, local_binding);
|
|
rtn->un.structure.element_name = strcpy(HeapAlloc(GetProcessHeap(), 0, strlen(exp->un.structure.element_name) + 1), exp->un.structure.element_name);
|
|
break;
|
|
case EXPR_TYPE_CALL:
|
|
for (i = 0; i < exp->un.call.nargs; i++)
|
|
{
|
|
rtn->un.call.arg[i] = expr_clone(exp->un.call.arg[i], local_binding);
|
|
}
|
|
rtn->un.call.funcname = strcpy(HeapAlloc(GetProcessHeap(), 0, strlen(exp->un.call.funcname) + 1), exp->un.call.funcname);
|
|
break;
|
|
case EXPR_TYPE_BINOP:
|
|
rtn->un.binop.exp1 = expr_clone(exp->un.binop.exp1, local_binding);
|
|
rtn->un.binop.exp2 = expr_clone(exp->un.binop.exp2, local_binding);
|
|
break;
|
|
case EXPR_TYPE_UNOP:
|
|
rtn->un.unop.exp1 = expr_clone(exp->un.unop.exp1, local_binding);
|
|
break;
|
|
default:
|
|
WINE_FIXME("Unexpected expression (%u).\n", exp->type);
|
|
RaiseException(DEBUG_STATUS_INTERNAL_ERROR, 0, 0, NULL);
|
|
break;
|
|
}
|
|
|
|
return rtn;
|
|
}
|
|
|
|
|
|
/*
|
|
* Recursively go through an expression tree and free all memory associated
|
|
* with it.
|
|
*/
|
|
int expr_free(struct expr* exp)
|
|
{
|
|
int i;
|
|
|
|
switch (exp->type)
|
|
{
|
|
case EXPR_TYPE_CAST:
|
|
expr_free(exp->un.cast.expr);
|
|
break;
|
|
case EXPR_TYPE_INTVAR:
|
|
HeapFree(GetProcessHeap(), 0, (char*)exp->un.intvar.name);
|
|
break;
|
|
case EXPR_TYPE_U_CONST:
|
|
case EXPR_TYPE_S_CONST:
|
|
break;
|
|
case EXPR_TYPE_STRING:
|
|
HeapFree(GetProcessHeap(), 0, (char*)exp->un.string.str);
|
|
break;
|
|
case EXPR_TYPE_SYMBOL:
|
|
HeapFree(GetProcessHeap(), 0, (char*)exp->un.symbol.name);
|
|
break;
|
|
case EXPR_TYPE_PSTRUCT:
|
|
case EXPR_TYPE_STRUCT:
|
|
expr_free(exp->un.structure.exp1);
|
|
HeapFree(GetProcessHeap(), 0, (char*)exp->un.structure.element_name);
|
|
break;
|
|
case EXPR_TYPE_CALL:
|
|
for (i = 0; i < exp->un.call.nargs; i++)
|
|
{
|
|
expr_free(exp->un.call.arg[i]);
|
|
}
|
|
HeapFree(GetProcessHeap(), 0, (char*)exp->un.call.funcname);
|
|
break;
|
|
case EXPR_TYPE_BINOP:
|
|
expr_free(exp->un.binop.exp1);
|
|
expr_free(exp->un.binop.exp2);
|
|
break;
|
|
case EXPR_TYPE_UNOP:
|
|
expr_free(exp->un.unop.exp1);
|
|
break;
|
|
default:
|
|
WINE_FIXME("Unexpected expression (%u).\n", exp->type);
|
|
RaiseException(DEBUG_STATUS_INTERNAL_ERROR, 0, 0, NULL);
|
|
break;
|
|
}
|
|
|
|
HeapFree(GetProcessHeap(), 0, exp);
|
|
return TRUE;
|
|
}
|