Merge changes I8123b26d,Iba069b97

* changes:
  [ion] Fix a volatile error
  [ion] Add a Ion::Log::print method

ion/include/ion.h

@@ -8,11 +8,11 @@
 #include <ion/events.h>
 #include <ion/keyboard.h>
 #include <ion/led.h>
+#include <ion/log.h>
 #include <ion/power.h>
 #include <stdint.h>
 #include <string.h>
 
-
 /* ION is not your regular library. It is a library you link against, but it
  * will take care of configuring the whole environment for you. In POSIX terms,
  * ION will implement the "main" function.

ion/include/ion/log.h

@@ -0,0 +1,12 @@
+#ifndef ION_LOG_H
+#define ION_LOG_H
+
+namespace Ion {
+namespace Log {
+
+void print(const char * message);
+
+}
+}
+
+#endif

ion/src/device/regs/gpio.h

@@ -46,7 +46,7 @@ public:
 
   class ODR : Register32 {
   public:
-    bool get(int index) { return (bool)getBitRange(index, index); }
+    bool get(int index) volatile { return (bool)getBitRange(index, index); }
     void set(int index, bool state) volatile { setBitRange(index, index, state); }
   };
 

ion/src/shared/log.cpp

@@ -0,0 +1,6 @@
+#include <ion/log.h>
+#include <stdio.h>
+
+void Ion::Log::print(const char * message) {
+  printf("%s\n", message);
+}