From 8ca593aee9e07ba6e1aa94089447770906b2314e Mon Sep 17 00:00:00 2001
From: Frederic Pillon <frederic.pillon@st.com>
Date: Fri, 13 Mar 2020 11:36:11 +0100
Subject: [PATCH] Fix weaked serialEventRun() not being called

Fixes #985

Signed-off-by: Frederic Pillon <frederic.pillon@st.com>
---
 cores/arduino/WSerial.cpp | 2 +-
 cores/arduino/WSerial.h   | 2 +-
 cores/arduino/main.cpp    | 4 +---
 3 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/cores/arduino/WSerial.cpp b/cores/arduino/WSerial.cpp
index 7fba4df0d1..3d866cae2f 100644
--- a/cores/arduino/WSerial.cpp
+++ b/cores/arduino/WSerial.cpp
@@ -1,6 +1,6 @@
 #include "WSerial.h"
 
-void serialEventRun(void)
+WEAK void serialEventRun(void)
 {
 #if defined(HAVE_HWSERIAL1)
   if (serialEvent1 && Serial1.available()) {
diff --git a/cores/arduino/WSerial.h b/cores/arduino/WSerial.h
index 753a38c25b..ffdc98ad52 100644
--- a/cores/arduino/WSerial.h
+++ b/cores/arduino/WSerial.h
@@ -165,6 +165,6 @@ extern void serialEvent10(void) __attribute__((weak));
 extern void serialEventLP1(void) __attribute__((weak));
 #endif /* HAL_UART_MODULE_ENABLED  && !HAL_UART_MODULE_ONLY */
 
-extern void serialEventRun(void) __attribute__((weak));
+extern void serialEventRun(void);
 
 #endif /* WIRING_SERIAL_H */
diff --git a/cores/arduino/main.cpp b/cores/arduino/main.cpp
index d7a9a51cea..450f01bd33 100644
--- a/cores/arduino/main.cpp
+++ b/cores/arduino/main.cpp
@@ -62,9 +62,7 @@ int main(void)
     CoreCallback();
 #endif
     loop();
-    if (serialEventRun) {
-      serialEventRun();
-    }
+    serialEventRun();
   }
 
   return 0;