From 0f7183fe4b393f5985009b0ffe382c0de46943a6 Mon Sep 17 00:00:00 2001
From: Martin Kojtal <martin.kojtal@arm.com>
Date: Wed, 13 Jan 2016 13:23:53 +0000
Subject: [PATCH] Retarget - main - invoke serial init

Some toolchains might not call open() for stdio handle prior main, which breaks usage:
```
void app_start(int, char**)
{
    Serial pc(tx, rx);
	pc.baud(115200);
	printf("sss \n"); //open stdio might happen here
}
```
---
 source/retarget.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/source/retarget.cpp b/source/retarget.cpp
index 5f719316..c62efdbc 100644
--- a/source/retarget.cpp
+++ b/source/retarget.cpp
@@ -493,6 +493,8 @@ extern "C" void __iar_argc_argv() {
 // the user should set up their application in app_start
 extern void app_start(int, char**);
 extern "C" int main(void) {
+    // init serial if it has not been invoked prior main
+    init_serial();
     minar::Scheduler::postCallback(
         mbed::util::FunctionPointer2<void, int, char**>(&app_start).bind(0, NULL)
     );