radare2/libr/anal/var.c
pancake 6d6ede7ee6 * Disassemble branch-in-the-middle instructions
- Uses reflines code analysis to get some hints
* Rename RAnalysis into RAnal
2010-03-19 12:00:04 +01:00

209 lines
4.8 KiB
C

/* radare - LGPL - Copyright 2010 */
/* nibble<.ds@gmail.com> */
/* pancake<nopcode.org> */
#include <r_anal.h>
#include <r_util.h>
#include <r_list.h>
R_API RAnalVar *r_anal_var_new() {
return r_anal_var_init (R_NEW (RAnalVar));
}
R_API RAnalVarType *r_anal_var_type_new() {
return r_anal_var_type_init (R_NEW (RAnalVarType));
}
R_API RAnalVarAccess *r_anal_var_access_new() {
return r_anal_var_access_init (R_NEW (RAnalVarAccess));
}
R_API RList *r_anal_var_list_new() {
RList *list = r_list_new ();
list->free = &r_anal_var_free;
return list;
}
R_API RList *r_anal_var_type_list_new() {
RList *list = r_list_new ();
list->free = &r_anal_var_type_free;
return list;
}
R_API RList *r_anal_var_access_list_new() {
RList *list = r_list_new ();
list->free = &r_anal_var_access_free;
return list;
}
R_API void r_anal_var_free(void *var) {
if (var) {
if (((RAnalVar*)var)->name)
free (((RAnalVar*)var)->name);
if (((RAnalVar*)var)->vartype)
free (((RAnalVar*)var)->vartype);
if (((RAnalVar*)var)->accesses)
r_list_destroy (((RAnalVar*)var)->accesses);
}
free (var);
}
R_API void r_anal_var_type_free(void *vartype) {
if (vartype) {
if (((RAnalVarType*)vartype)->name)
free (((RAnalVarType*)vartype)->name);
if (((RAnalVarType*)vartype)->fmt)
free (((RAnalVarType*)vartype)->fmt);
}
free (vartype);
}
R_API void r_anal_var_access_free(void *access) {
free (access);
}
R_API RAnalVar *r_anal_var_init(RAnalVar *var) {
if (var) {
memset (var, 0, sizeof (RAnalVar));
var->accesses = r_anal_var_access_list_new ();
}
return var;
}
R_API RAnalVarType *r_anal_var_type_init(RAnalVarType *vartype) {
if (vartype)
memset (vartype, 0, sizeof (RAnalVarType));
return vartype;
}
R_API RAnalVarAccess *r_anal_var_access_init(RAnalVarAccess *access) {
if (access)
memset (access, 0, sizeof (RAnalVarAccess));
return access;
}
R_API int r_anal_var_type_add(RAnal *anal, const char *name, int size, const char *fmt) {
RAnalVarType *t;
if (!(t = r_anal_var_type_new ()))
return R_FALSE;
if (name)
t->name = strdup (name);
if (fmt)
t->fmt = strdup (fmt);
t->size = size;
r_list_append (anal->vartypes, t);
return R_TRUE;
}
R_API int r_anal_var_type_del(RAnal *anal, const char *name) {
RAnalVarType *vti;
RListIter *iter;
r_list_foreach(anal->vartypes, iter, vti)
if (!strcmp (name, vti->name)) {
r_list_unlink (anal->vartypes, vti);
return R_TRUE;
}
return R_FALSE;
}
R_API RAnalVarType *r_anal_var_type_get(RAnal *anal, const char *name) {
RAnalVarType *vti;
RListIter *iter;
r_list_foreach(anal->vartypes, iter, vti)
if (!strcmp (name, vti->name))
return vti;
return NULL;
}
R_API int r_anal_var_add(RAnal *anal, RAnalFcn *fcn, ut64 from, int delta, int type, const char *vartype, const char *name, int set) {
RAnalVar *var, *vari;
RListIter *iter;
r_list_foreach(fcn->vars, iter, vari)
if (vari->type == type && vari->delta == delta)
return r_anal_var_access_add (anal, vari, from, set);
if (!(var = r_anal_var_new ()))
return R_FALSE;
if (name)
var->name = strdup (name);
if (vartype)
var->vartype = strdup (vartype);
var->type = type;
var->delta = delta;
r_anal_var_access_add (anal, var, from, set);
r_list_append (fcn->vars, var);
return R_TRUE;
}
R_API int r_anal_var_del(RAnal *anal, RAnalFcn *fcn, int delta, int type) {
RAnalVar *vari;
RListIter *iter;
r_list_foreach(fcn->vars, iter, vari)
if (vari->type == type && vari->delta == delta) {
r_list_unlink (fcn->vars, vari);
return R_TRUE;
}
return R_FALSE;
}
R_API RAnalVar *r_anal_var_get(RAnal *anal, RAnalFcn *fcn, int delta, int type) {
RAnalVar *vari;
RListIter *iter;
r_list_foreach(fcn->vars, iter, vari)
if (vari->type == type && vari->delta == delta)
return vari;
return NULL;
}
R_API const char *r_anal_var_type_to_str (RAnal *anal, int type) {
switch(type) {
case R_ANAL_VAR_TYPE_GLOBAL: return "global";
case R_ANAL_VAR_TYPE_LOCAL: return "local";
case R_ANAL_VAR_TYPE_ARG: return "arg";
case R_ANAL_VAR_TYPE_ARGREG: return "fastarg";
}
return "(?)";
}
R_API int r_anal_var_access_add(RAnal *anal, RAnalVar *var, ut64 from, int set) {
RAnalVarAccess *acc, *acci;
RListIter *iter;
r_list_foreach(var->accesses, iter, acci)
if (acci->addr == from)
return R_TRUE;
if (!(acc = r_anal_var_access_new ()))
return R_FALSE;
acc->addr = from;
acc->set = set;
r_list_append (var->accesses, acc);
return R_TRUE;
}
R_API int r_anal_var_access_del(RAnal *anal, RAnalVar *var, ut64 from) {
RAnalVarAccess *acci;
RListIter *iter;
r_list_foreach(var->accesses, iter, acci)
if (acci->addr == from) {
r_list_unlink (var->accesses, acci);
return R_TRUE;
}
return R_TRUE;
}
R_API RAnalVarAccess *r_anal_var_access_get(RAnal *anal, RAnalVar *var, ut64 from) {
RAnalVarAccess *acci;
RListIter *iter;
r_list_foreach(var->accesses, iter, acci)
if (acci->addr == from)
return acci;
return NULL;
}