haide frame storage from user and introduce separate method

pst_get_register() to obtain register value within function's stack frame
2020-05-02 13:51:31 +04:00
parent 1825515ca0
commit d1441b3b6f
6 changed files with 33 additions and 9 deletions
@@ -74,6 +74,15 @@ const pst_function* pst_function_next(pst_handler* handler, pst_function* curren
 */
 const pst_function_info* pst_get_function_info(pst_function* function);

+/**
+ * @brief Get value of CPU register in function's frame
+ * @param function function's handler obtained by pst_get_next_function()
+ * @param regno index of register
+ * @param val pointer to store register's value
+ * @return zero on success, UNW_EUNSPEC in case of unspecified error, UNW_EBADREG - register that is either invalid or not accessible in the current frame
+ */
+int pst_get_register(pst_function* function, int regno, unw_word_t* val);
+
 /**
 * @brief Get next parameter's handle in function
 * @param function Function's handler obtained by pst_get_next_function()