1 files changed, 10 insertions, 8 deletions
diff --git a/cpukit/score/include/rtems/score/heap.h b/cpukit/score/include/rtems/score/heap.h
index 0587852d78..78c15522fd 100644
--- a/cpukit/score/include/rtems/score/heap.h
+++ b/cpukit/score/include/rtems/score/heap.h
@@ -31,6 +31,8 @@
 #ifndef _RTEMS_SCORE_HEAP_H
 #define _RTEMS_SCORE_HEAP_H
 
+#include <sys/types.h>
+
 /**
  *  @defgroup ScoreHeap Heap Handler
  *
@@ -262,7 +264,7 @@ typedef struct {
 uint32_t   _Heap_Initialize(
   Heap_Control *the_heap,
   void         *starting_address,
-  size_t        size,
+  ssize_t       size,
   uint32_t      page_size
 );
 
@@ -281,7 +283,7 @@ uint32_t   _Heap_Initialize(
 Heap_Extend_status _Heap_Extend(
   Heap_Control *the_heap,
   void         *starting_address,
-  size_t        size,
+  ssize_t       size,
   uint32_t     *amount_extended
 );
 
@@ -296,7 +298,7 @@ Heap_Extend_status _Heap_Extend(
  */
 void *_Heap_Allocate(
   Heap_Control *the_heap,
-  size_t        size
+  ssize_t       size
 );
 
 /**
@@ -315,7 +317,7 @@ void *_Heap_Allocate(
  */
 void *_Heap_Allocate_aligned(
   Heap_Control *the_heap,
-  size_t        size,
+  ssize_t       size,
   uint32_t      alignment
 );
 
@@ -336,7 +338,7 @@ void *_Heap_Allocate_aligned(
 bool _Heap_Size_of_user_area(
   Heap_Control        *the_heap,
   void                *starting_address,
-  size_t              *size
+  ssize_t             *size
 );
 
 /**
@@ -364,7 +366,7 @@ bool _Heap_Size_of_user_area(
 Heap_Resize_status _Heap_Resize_block(
   Heap_Control *the_heap,
   void         *starting_address,
-  size_t        size,
+  ssize_t       size,
   uint32_t     *old_mem_size,
   uint32_t     *avail_mem_size
 );
@@ -449,8 +451,8 @@ void _Heap_Get_free_information(
  *
  *  @return This method returns block size on success, 0 if overflow occured.
  */
-extern size_t _Heap_Calc_block_size(
-  size_t   size,
+extern ssize_t _Heap_Calc_block_size(
+  ssize_t  size,
   uint32_t page_size,
   uint32_t min_size
 );