static int r_print_format_struct(RPrint* p, ut64 seek, const ut8* b, int len, char *name, int slide) {
const char *fmt;
int flag = (slide>=STRUCTFLAG)?SEEFLAG:-1;
if ((slide%STRUCTPTR) > NESTDEPTH) {
eprintf ("Too much nested struct, recursion too deep...\n");
return 0;
}
if (flag) p->printf = realprintf;
fmt = r_strht_get (p->formats, name);
if (!fmt || !*fmt) {
eprintf ("Undefined struct '%s'.\n", name);
return 0;
}
r_print_format (p, seek, b, len, fmt, flag, NULL);
return computeStructSize(strdup(fmt));
}
int computeStructSize(FieldList var){
FieldList fp = var->tail;
int size = 0;
int array_size = 0;
int struct_size = 0;
while(fp != NULL){
switch(fp->type->kind){
case basic:
size += 4;
break;
case array:
array_size = (fp->type->u).array.size;
size += array_size*4;
break;
case structure:
struct_size = computeStructSize((fp->type->u).structure);
size += struct_size;
break;
}
fp = fp->tail;
}
return size;
}
InterCodeNode translate_VarDec(treenode *VarDec_n, Operand place){
if(VarDec_n == NULL){
//deprintf("VarDec is NULL\n");
return NULL;
}
treenode *id = VarDec_n->node[0];
char *name = id->idval;
if(VarDec_n->child_num == 1){
// vardec -> id
FieldList var = fetchArg(name);
if(var != NULL){
if(var->type->kind == basic){
struct Var_info *new_var = new_VarInfo(name,++g_var_count,BASIC,4);
insertVarInfo(new_var);
place->kind = VARIABLE;
place->u.var_no = g_var_count;
return NULL;
}else{
assert(var->type->kind == structure);
int size = computeStructSize((var->type->u).structure);
struct Var_info *new_var = new_VarInfo(name,++g_var_count,STRUCT,size);
insertVarInfo(new_var);
Operand var_op = new_Operand();
Operand size_op = new_Operand();
var_op->kind = VARIABLE;
var_op->u.var_no = g_var_count;
size_op->kind = SIZE;
size_op->u.value = size;
InterCode dec_code = new_InterCode();
dec_code->kind = DEC;
dec_code->u.dec.var = var_op;
dec_code->u.dec.size = size_op;
return produceNodeByCode(dec_code);
}
}
}
assert(VarDec_n->child_num == 4);
//vardec -> vardec [int]
//vardec -> id
treenode *num_node = VarDec_n->node[2];
treenode *check_multi = VarDec_n->node[0];
int size = num_node->ival;
if(check_multi->child_num != 1){
printf("Can not translate the code: contain multidimensional array and function parameters of array type\n");
exit(1);
}
treenode *array_id = check_multi->node[0];
FieldList array_var = fetchArg(array_id->idval);
if(array_var != NULL){
int elem = 4;
Type base_type = (array_var->type->u).array.elem;
if(base_type->kind == basic){
struct Var_info *new_var = new_VarInfo(array_var->name,++g_var_count,ARRAY,size*elem);
insertVarInfo(new_var);
}else if(base_type->kind == structure){
elem = computeStructSize(base_type->u.structure);
struct Var_info *new_var = new_VarInfo(array_var->name,++g_var_count,STRUCT,size*elem);
insertVarInfo(new_var);
}
Operand var_op = new_Operand();
Operand size_op = new_Operand();
size_op->kind = SIZE;
size_op->u.value = size*elem;
var_op->kind = VARIABLE;
var_op->u.var_no = g_var_count;
//array size dec
InterCode dec_code = new_InterCode();
dec_code->kind = DEC;
dec_code->u.dec.var = var_op;
dec_code->u.dec.size = size_op;
return produceNodeByCode(dec_code);
}
//deprintf("Error NULL!\n");
return NULL;
}
//maybe useless
InterCodeNode translate_ExpDotExp(treenode *enode, Operand place){
//Exp -> Exp [Exp]
// Exp -> Exp.id
//
// Exp -> Exp[Exp].id[Exp]
treenode *exp1 = enode->node[0];
treenode *index_exp = enode->node[2];
treenode *exp2 = exp1->node[0];
treenode *field_id = exp1->node[2];
treenode *var_id = exp2->node[0];
Operand start = new_Operand();
FieldList if_para = fetchPara(var_id->idval);
FieldList field = NULL;
if(if_para != NULL){
struct Var_info *temp_var = fetchVarInfo(var_id->idval);
start->kind = VARIABLE;
start->u.var_no = temp_var->var_no;
field = (if_para->type->u).structure->tail;
}else{
struct Var_info *temp_var = fetchVarInfo(var_id->idval);
start->kind = REFERENCE;
start->u.var_no = temp_var->var_no;
FieldList temp_var2 = fetchArg(var_id->idval);
field = (temp_var2->type->u).structure->tail;
}
int count = 0;
FieldList p = field;
while(p != NULL){
if(strcmp(p->name,field_id->idval) == 0)
break;
switch(p->type->kind){
case basic:
count += 4;break;
case array:
count += 4*((p->type->u).array.size);break;
case structure:
count += computeStructSize((p->type->u).structure);
break;
}
p = p->tail;
}
Operand field_offset = new_Operand();
field_offset->kind = CONSTANT;
field_offset->u.value = count;
Operand array_start = new_Temp();
InterCode add_code = new_InterCode();
add_code->kind = ADD;
add_code->u.binop.result = array_start;
add_code->u.binop.op1 = start;
add_code->u.binop.op2 = field_offset;
InterCodeNode node1 = produceNodeByCode(add_code);
Operand t1 = new_Temp();
InterCodeNode node2 = translate_Exp(index_exp,t1);
Operand t2 = new_Temp();
Operand length4 = new_Operand();
length4->kind = CONSTANT;
length4->u.value = 4;
InterCode mul_code = new_InterCode();
mul_code->kind = MUL;
mul_code->u.binop.result = t2;
mul_code->u.binop.op1 = t1;
mul_code->u.binop.op2 = length4;
InterCodeNode node3 = produceNodeByCode(mul_code);
Operand addr = new_Temp();
InterCode add_code1 = new_InterCode();
add_code1->kind = ADD;
add_code1->u.binop.result = addr;
add_code1->u.binop.op1 = array_start;
if(t1->kind == CONSTANT){
t1->u.value = t1->u.value * 4;
add_code1->u.binop.op2 = t1;
node3 = NULL;
}else{
add_code1->u.binop.op2 = t2;
}
InterCodeNode node4 = produceNodeByCode(add_code1);
// Operand new_addr = new_Operand();
// new_addr->kind = ADDRESS;
// new_addr->u.temp_no = addr->u.temp_no;
// Operand data = new_Temp();
// InterCode assign_code = new_InterCode();
// assign_code->kind = ASSIGN;
// assign_code->u.assign.left = data;
// assign_code->u.assign.right = new_addr;
// InterCodeNode node5 = produceNodeByCode(assign_code);
//show(node4);
place->kind = ADDRESS;
place->u.temp_no = addr->u.temp_no;
InterCodeNode temp12 = produceNodeByNode(node1,node2);
InterCodeNode temp123 = produceNodeByNode(temp12,node3);
InterCodeNode temp1234 = produceNodeByNode(temp123,node4);
return temp1234;
//return produceNodeByNode(temp1234,node5);
}