diff --git a/components/freertos/port/esp8266/include/freertos/portmacro.h b/components/freertos/port/esp8266/include/freertos/portmacro.h
index d04b4558..0c1ad695 100644
--- a/components/freertos/port/esp8266/include/freertos/portmacro.h
+++ b/components/freertos/port/esp8266/include/freertos/portmacro.h
@@ -167,6 +167,8 @@ void PortEnableInt_NoNest( void );
 #define portENTER_CRITICAL()                vPortEnterCritical()
 #define portEXIT_CRITICAL()                 vPortExitCritical()
 
+#define xPortGetCoreID()                    0
+
 // no need to disable/enable lvl1 isr again in ISR
 //#define  portSET_INTERRUPT_MASK_FROM_ISR()		PortDisableInt_NoNest()
 //#define  portCLEAR_INTERRUPT_MASK_FROM_ISR(x)		PortEnableInt_NoNest()
diff --git a/components/newlib/newlib/port/syscall.c b/components/newlib/newlib/port/syscall.c
index 29eaacd2..9c0145b8 100644
--- a/components/newlib/newlib/port/syscall.c
+++ b/components/newlib/newlib/port/syscall.c
@@ -135,6 +135,10 @@ void _exit(int status)
 
 void abort(void)
 {
-    ESP_LOGE("ABORT","Error found and abort!");
-    while(1);
+    ets_printf("abort() was called at PC %p on core %d\r\n", __builtin_return_address(0) - 3, xPortGetCoreID());
+
+    /* cause a exception to jump into panic function */
+    while (1) {
+        *((int *)NULL) = 0;
+    }
 }
\ No newline at end of file