added a simple test for malloc/free

added a memorymanager initilializer which works on a buffer instead on an offset
(thus we can but the heap area also onto the stack for testing)
added a kernel_stub module to test modules using kernel_panic (for now, maybe
have a callback later)

2 files changed, 12 insertions, 1 deletions

diff --git a/src/kernel/memorymanagement.c b/src/kernel/memorymanagement.c
index b8a84b2..bc7252e 100644
--- a/src/kernel/memorymanagement.c
+++ b/src/kernel/memorymanagement.c
@@ -10,7 +10,17 @@ void memory_manager_init( memory_manager_t *memory_manager, size_t offset, size_
 
 	memory_manager->offset = offset;
 	memory_manager->size = size;
-	memory_manager->free_ptr = offset;
+	memory_manager->free_ptr = memory_manager->offset;
+	memory_manager->prev_ptr = 0xFFFFFFFF;
+}
+
+void memory_manager_init_with_buf( memory_manager_t *memory_manager, void *buf, size_t size )
+{
+	memset( memory_manager, 0, sizeof( memory_manager_t ) );
+
+	memory_manager->offset = (uint32_t)buf;
+	memory_manager->size = size;
+	memory_manager->free_ptr = memory_manager->offset;
 	memory_manager->prev_ptr = 0xFFFFFFFF;
 }
 
diff --git a/src/kernel/memorymanagement.h b/src/kernel/memorymanagement.h
index 647c05d..5ea2618 100644
--- a/src/kernel/memorymanagement.h
+++ b/src/kernel/memorymanagement.h
@@ -11,6 +11,7 @@ typedef struct {
 } memory_manager_t;
 
 void memory_manager_init( memory_manager_t *memory_manager, size_t offset, size_t size );
+void memory_manager_init_with_buf( memory_manager_t *memory_manager, void *buf, size_t size );
 void *memory_manager_allocate( memory_manager_t *memory_manager, size_t size );
 void memory_manager_deallocate( memory_manager_t *memory_manager, void **p );