+/** Find the DWARF offset for this ELF object
+ *
+ * An offset is applied to address found in DWARF:
+ *
+ * * for an executable obejct, addresses are virtual address
+ * (there is no offset) i.e.
+ * \f$\text{virtual address} = \{dwarf address}\f$;
+ *
+ * * for a shared object, the addreses are offset from the begining
+ * of the shared object (the base address of the mapped shared
+ * object must be used as offset
+ * i.e. \f$\text{virtual address} = \text{shared object base address}
+ * + \text{dwarf address}\f$.
+ */
+void *ObjectInformation::base_address() const
+{
+ if (this->executable())
+ return nullptr;
+
+ void *result = this->start_exec;
+ if (this->start_rw != NULL && result > (void *) this->start_rw)
+ result = this->start_rw;
+ if (this->start_ro != NULL && result > (void *) this->start_ro)
+ result = this->start_ro;
+ return result;
+}