From 69b703729fdffef80a684dd82931d667a6f5c2f6 Mon Sep 17 00:00:00 2001
From: Oleg Hahm <oleg@hobbykeller.org>
Date: Mon, 17 Oct 2016 11:05:22 +0200
Subject: [PATCH] cpu: make standard stack sizes configurable

---
 cpu/atmega1281/include/cpu_conf.h    |  9 +++++++--
 cpu/msp430-common/include/cpu_conf.h | 22 ++++++++++++++++------
 2 files changed, 23 insertions(+), 8 deletions(-)

diff --git a/cpu/atmega1281/include/cpu_conf.h b/cpu/atmega1281/include/cpu_conf.h
index 6fb1d27dc4..ccad511d09 100644
--- a/cpu/atmega1281/include/cpu_conf.h
+++ b/cpu/atmega1281/include/cpu_conf.h
@@ -38,8 +38,13 @@ extern "C" {
 #   define THREAD_STACKSIZE_DEFAULT   (256)
 #endif
 
-#define THREAD_STACKSIZE_IDLE      (128)
-#define ISR_STACKSIZE              (0)
+#ifndef THREAD_STACKSIZE_IDLE
+#   define THREAD_STACKSIZE_IDLE      (128)
+#endif
+
+#ifndef ISR_STACKSIZE
+#   define ISR_STACKSIZE              (0)
+#endif
 /** @} */
 
 #ifdef __cplusplus
diff --git a/cpu/msp430-common/include/cpu_conf.h b/cpu/msp430-common/include/cpu_conf.h
index 004918b115..edd54020b5 100644
--- a/cpu/msp430-common/include/cpu_conf.h
+++ b/cpu/msp430-common/include/cpu_conf.h
@@ -17,19 +17,29 @@ extern "C" {
  * @name Kernel configuration
  * @{
  */
-#define THREAD_EXTRA_STACKSIZE_PRINTF    (256)
-#define THREAD_EXTRA_STACKSIZE_PRINTF_FLOAT (THREAD_EXTRA_STACKSIZE_PRINTF)
+#ifndef THREAD_EXTRA_STACKSIZE_PRINTF
+#   define THREAD_EXTRA_STACKSIZE_PRINTF    (256)
+#endif
+
+#ifndef THREAD_EXTRA_STACKSIZE_PRINTF
+#   define THREAD_EXTRA_STACKSIZE_PRINTF_FLOAT (THREAD_EXTRA_STACKSIZE_PRINTF)
+#endif
 
 #ifndef THREAD_STACKSIZE_DEFAULT
 #   define THREAD_STACKSIZE_DEFAULT         (256)
 #endif
 
-#define THREAD_STACKSIZE_IDLE      (96)
-#define ISR_STACKSIZE              (256)
+#ifndef THREAD_STACKSIZE_IDLE
+#   define THREAD_STACKSIZE_IDLE            (96)
+#endif
+
+#ifndef ISR_STACKSIZE
+#   define ISR_STACKSIZE                    (256)
+#endif
 
 #ifndef GNRC_PKTBUF_SIZE
-#   define GNRC_PKTBUF_SIZE                (2560)    /* TODO: Make this value
-                                                   * overall MTU dependent */
+/* TODO: Make this value overall MTU dependent */
+#   define GNRC_PKTBUF_SIZE                 (2560)
 #endif
 /** @} */