【完善】通过traceRETURN_xTaskGetCurrentTaskHandle获取FreeRTOS任务栈信息, 避免修改源码

Author: Gang Li

cm_backtrace/cm_backtrace.c

@@ -182,6 +182,12 @@ void cm_backtrace_firmware_info(void) {
 }
 
 #ifdef CMB_USING_OS_PLATFORM
+
+#if (CMB_OS_PLATFORM_TYPE == CMB_OS_PLATFORM_FREERTOS)
+uint32_t start_addr;
+size_t size;
+#endif
+
 /**
  * Get current thread stack information
  *
@@ -208,8 +214,9 @@ 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 );
+    xTaskGetCurrentTaskHandle();
+    *start_addr = (uint32_t) start_addr;
+    *size = (size_t) size;
 #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 +248,8 @@ static const char *get_cur_thread_name(void) {
 
     return (const char *)OSTCBCurPtr->NamePtr;
 #elif (CMB_OS_PLATFORM_TYPE == CMB_OS_PLATFORM_FREERTOS)
-    return vTaskName();
+    char *taskName = pcTaskGetName(NULL);
+    return (const char *)taskName;
 #elif (CMB_OS_PLATFORM_TYPE == CMB_OS_PLATFORM_RTX5)
     return osRtxInfo.thread.run.curr->name;
 #endif

cm_backtrace/cmb_def.h

@@ -342,10 +342,10 @@ 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"
+        extern TaskHandle_t xTaskGetCurrentTaskHandle(void);
+        extern char * pcTaskGetName(TaskHandle_t xTaskToQuery);
     #elif (CMB_OS_PLATFORM_TYPE == CMB_OS_PLATFORM_RTX5)
         #include "rtx_os.h"
     #else
@@ -423,4 +423,17 @@ if (!(EXPR))                                                                   \
     #error "not supported compiler"
 #endif
 
+#if (CMB_OS_PLATFORM_TYPE == CMB_OS_PLATFORM_FREERTOS)
+extern uint32_t start_addr;
+extern size_t size;
+
+#undef traceRETURN_xTaskGetCurrentTaskHandle
+#define traceRETURN_xTaskGetCurrentTaskHandle(xReturn)                                  \
+  {                                                                                     \
+      start_addr = (xReturn != NULL ? (StackType_t)xReturn->pxStack : 0);               \
+      size = (xReturn != NULL ? (StackType_t)xReturn - (StackType_t)xReturn->pxStack -  \
+              4 * sizeof(StackType_t) : 0);                                             \
+  }
+#endif
+
 #endif /* _CMB_DEF_H_ */