From 715517b1a0c2c5215f87fc17d34bb72263094583 Mon Sep 17 00:00:00 2001
From: Masayuki Ishikawa <masayuki.ishikawa@gmail.com>
Date: Thu, 30 Jan 2020 13:24:07 +0900
Subject: [PATCH] examples: hello: Show CPU index when running in SMP mode

Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>
---
 examples/hello/hello_main.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/examples/hello/hello_main.c b/examples/hello/hello_main.c
index 953597aa2..a533eff35 100644
--- a/examples/hello/hello_main.c
+++ b/examples/hello/hello_main.c
@@ -40,6 +40,10 @@
 #include <nuttx/config.h>
 #include <stdio.h>
 
+#ifdef CONFIG_SMP
+#  include <nuttx/arch.h>
+#endif
+
 /****************************************************************************
  * Public Functions
  ****************************************************************************/
@@ -50,6 +54,12 @@
 
 int main(int argc, FAR char *argv[])
 {
+#ifdef CONFIG_SMP
+  uint32_t cpu = up_cpu_index();
+
+  printf("Hello, World from CPU%d !!\n", cpu);
+#else
   printf("Hello, World!!\n");
+#endif
   return 0;
 }