From 1319c5e8743038e348d00da30831cd2f9e3c20e7 Mon Sep 17 00:00:00 2001
From: Oleg Hahm <oleg@hobbykeller.org>
Date: Thu, 21 Apr 2016 15:00:13 +0200
Subject: [PATCH] doc: add a hint to cpu_conf.h

---
 core/include/thread.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/core/include/thread.h b/core/include/thread.h
index ebf597687..88828188b 100644
--- a/core/include/thread.h
+++ b/core/include/thread.h
@@ -105,6 +105,9 @@ struct _thread {
 /**
  * @def THREAD_STACKSIZE_DEFAULT
  * @brief A reasonable default stack size that will suffice most smaller tasks
+ *
+ * @note This value must be defined by the CPU specific implementation, please
+ *       take a look at @c cpu/$CPU/include/cpu_conf.h
  */
 #ifndef THREAD_STACKSIZE_DEFAULT
 #error THREAD_STACKSIZE_DEFAULT must be defined per CPU
@@ -116,6 +119,9 @@ struct _thread {
 /**
  * @def THREAD_STACKSIZE_IDLE
  * @brief Size of the idle task's stack in bytes
+ *
+ * @note This value must be defined by the CPU specific implementation, please
+ *       take a look at @c cpu/$CPU/include/cpu_conf.h
  */
 #ifndef THREAD_STACKSIZE_IDLE
 #error THREAD_STACKSIZE_IDLE must be defined per CPU
@@ -128,6 +134,9 @@ struct _thread {
  * @def THREAD_EXTRA_STACKSIZE_PRINTF
  * @ingroup conf
  * @brief Size of the task's printf stack in bytes
+ *
+ * @note This value must be defined by the CPU specific implementation, please
+ *       take a look at @c cpu/$CPU/include/cpu_conf.h
  */
 #ifndef THREAD_EXTRA_STACKSIZE_PRINTF
 #error THREAD_EXTRA_STACKSIZE_PRINTF must be defined per CPU