1 files changed, 77 insertions, 0 deletions
diff --git a/FreeRTOS/readme.uC-sdk.txt b/FreeRTOS/readme.uC-sdk.txt
new file mode 100644
index 0000000..e00f132
--- /dev/null
+++ b/FreeRTOS/readme.uC-sdk.txt
@@ -0,0 +1,77 @@
+This is a reduced version of FreeRTOSV6.1.1. This file describes the alterations being made.
+
+All the demos have been removed.
+
+Almost all the ports have been removed, except the following:
+    ARM-CM3
+    ARM-CM3-MPU
+
+The following modifications have been made:
+
+-) Introducing the newlib's reent system into task.c
+-) Fixing heap_3.c to add missing calls
+
+--- tasks.c	2011-01-14 20:14:24.000000000 -0800
++++ tasks.c	2011-01-22 22:33:27.000000000 -0800
+@@ -114,6 +114,10 @@
+ 		unsigned long ulRunTimeCounter;		/*< Used for calculating how much CPU time each task is utilising. */
+ 	#endif
+ 
++	#if ( configUSE_NEWLIB_REENTRANT == 1 )
++		struct _reent reent;
++	#endif
++
+ } tskTCB;
+ 
+ 
+@@ -1635,6 +1639,10 @@
+ 	same priority get an equal share of the processor time. */
+ 	listGET_OWNER_OF_NEXT_ENTRY( pxCurrentTCB, &( pxReadyTasksLists[ uxTopReadyPriority ] ) );
+ 
++	#if ( configUSE_NEWLIB_REENTRANT == 1 )
++		_impure_ptr = &(pxCurrentTCB->reent);
++	#endif
++
+ 	traceTASK_SWITCHED_IN();
+ 	vWriteTraceToBuffer();
+ }
+@@ -1952,6 +1960,10 @@
+ 		( void ) usStackDepth;
+ 	}
+ 	#endif
++
++	#if ( configUSE_NEWLIB_REENTRANT == 1 )
++		_REENT_INIT_PTR((&(pxTCB->reent)));
++	#endif
+ }
+ /*-----------------------------------------------------------*/
+ 
+--- heap_3.c	2011-01-14 20:14:24.000000000 -0800
++++ heap_3.c	2011-01-22 23:44:03.000000000 -0800
+@@ -99,6 +99,7 @@
+ 	
+ 	return pvReturn;
+ }
++
+ /*-----------------------------------------------------------*/
+ 
+ void vPortFree( void *pv )
+@@ -113,5 +114,18 @@
+ 	}
+ }
+ 
++/*-----------------------------------------------------------*/
++
++void vPortInitialiseBlocks( void )
++{
++	/* Not necessary */
++}
++
++/*-----------------------------------------------------------*/
++
++size_t xPortGetFreeHeapSize( void )
++{
++	return 0; /* Not necessary anyway */
++}
+ 
+