diff --git a/cm_backtrace/cm_backtrace.c b/cm_backtrace/cm_backtrace.c
index 8390803..f690590 100644
--- a/cm_backtrace/cm_backtrace.c
+++ b/cm_backtrace/cm_backtrace.c
@@ -208,8 +208,9 @@ static void get_cur_thread_stack_info(uint32_t *sp, uint32_t *start_addr, size_t
     *start_addr = (uint32_t) OSTCBCurPtr->StkBasePtr;
     *size = OSTCBCurPtr->StkSize * sizeof(CPU_STK_SIZE);
 #elif (CMB_OS_PLATFORM_TYPE == CMB_OS_PLATFORM_FREERTOS)
-    *start_addr = (uint32_t)vTaskStackAddr();
-    *size = vTaskStackSize() * sizeof( StackType_t );
+    tskTCB_t * task_handle = (tskTCB_t *)xTaskGetCurrentTaskHandle();
+    *start_addr = (StackType_t)task_handle->pxStack;
+    *size = (StackType_t)task_handle - (StackType_t)task_handle->pxStack - 4 * sizeof(StackType_t);
 #elif (CMB_OS_PLATFORM_TYPE == CMB_OS_PLATFORM_RTX5)
     osRtxThread_t *thread = osRtxInfo.thread.run.curr;
     *start_addr = (uint32_t)thread->stack_mem;
@@ -241,7 +242,8 @@ static const char *get_cur_thread_name(void) {
 
     return (const char *)OSTCBCurPtr->NamePtr;
 #elif (CMB_OS_PLATFORM_TYPE == CMB_OS_PLATFORM_FREERTOS)
-    return vTaskName();
+    tskTCB_t * task_handle = (tskTCB_t *)xTaskGetCurrentTaskHandle();
+    return task_handle->pcTaskName;
 #elif (CMB_OS_PLATFORM_TYPE == CMB_OS_PLATFORM_RTX5)
     return osRtxInfo.thread.run.curr->name;
 #endif
diff --git a/cm_backtrace/cmb_def.h b/cm_backtrace/cmb_def.h
index a78894b..ea110e5 100644
--- a/cm_backtrace/cmb_def.h
+++ b/cm_backtrace/cmb_def.h
@@ -342,10 +342,23 @@ if (!(EXPR))                                                                   \
     #elif (CMB_OS_PLATFORM_TYPE == CMB_OS_PLATFORM_UCOSIII)
         #include <os.h>
     #elif (CMB_OS_PLATFORM_TYPE == CMB_OS_PLATFORM_FREERTOS)
-        #include <FreeRTOS.h>  
-        extern uint32_t *vTaskStackAddr(void);/* need to modify the FreeRTOS/tasks source code */
-        extern uint32_t vTaskStackSize(void);
-        extern char * vTaskName(void);
+        #include <FreeRTOS.h>
+        #include <task.h>
+        typedef struct       /* The old naming convention is used to prevent breaking kernel aware debuggers. */
+        {
+            volatile StackType_t * pxTopOfStack; /*< Points to the location of the last item placed on the tasks stack.  THIS MUST BE THE FIRST MEMBER OF THE TCB STRUCT. */
+
+            #if ( portUSING_MPU_WRAPPERS == 1 )
+                xMPU_SETTINGS xMPUSettings; /*< The MPU settings are defined as part of the port layer.  THIS MUST BE THE SECOND MEMBER OF THE TCB STRUCT. */
+            #endif
+
+            ListItem_t xStateListItem;                  /*< The list that the state list item of a task is reference from denotes the state of that task (Ready, Blocked, Suspended ). */
+            ListItem_t xEventListItem;                  /*< Used to reference a task from an event list. */
+            UBaseType_t uxPriority;                     /*< The priority of the task.  0 is the lowest priority. */
+            StackType_t * pxStack;                      /*< Points to the start of the stack. */
+            char pcTaskName[ configMAX_TASK_NAME_LEN ]; /*< Descriptive name given to the task when created.  Facilitates debugging only. */ /*lint !e971 Unqualified char types are allowed for strings and single characters only. */
+        } tskTCB_t;
+        extern TaskHandle_t xTaskGetCurrentTaskHandle(void);
     #elif (CMB_OS_PLATFORM_TYPE == CMB_OS_PLATFORM_RTX5)
         #include "rtx_os.h"
     #else