【添加】FreeRTOS Demo

cm_backtrace/cm_backtrace.c

@@ -253,9 +253,9 @@ static void get_cur_thread_stack_info(uint32_t sp, uint32_t *start_addr, size_t
 #elif (CMB_OS_PLATFORM_TYPE == CMB_OS_PLATFORM_UCOSIII)
     #error "not implemented, I hope you can do this"
     //TODO 待实现
-#elif (CMB_OS_PLATFORM_TYPE == CMB_OS_PLATFORM_FREERTOS)
-    #error "not implemented, I hope you can do this"
-    //TODO 待实现
+#elif (CMB_OS_PLATFORM_TYPE == CMB_OS_PLATFORM_FREERTOS)   
+    *start_addr = (uint32_t)vTaskStackAddr();
+    *size = vTaskStackSize() * sizeof( StackType_t );
 #endif
 }
 
@@ -278,8 +278,7 @@ static const char *get_cur_thread_name(void) {
     #error "not implemented, I hope you can do this"
     //TODO 待实现
 #elif (CMB_OS_PLATFORM_TYPE == CMB_OS_PLATFORM_FREERTOS)
-    #error "not implemented, I hope you can do this"
-    //TODO 待实现
+    return vTaskName();
 #endif
 }
 

cm_backtrace/cmb_def.h

@@ -307,8 +307,10 @@ if (!(EXPR))                                                                   \
         #include <os.h>
         //TODO ´ý²âÊÔ
     #elif (CMB_OS_PLATFORM_TYPE == CMB_OS_PLATFORM_FREERTOS)
-        #error "not implemented, I hope you can do this"
-        //TODO ´ýʵÏÖ
+        #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);
     #else
         #error "not supported OS type"
     #endif /* (CMB_OS_PLATFORM_TYPE == CMB_OS_PLATFORM_RTT) */