Changes between Initial Version and Version 1 of user_libraries

Timestamp:

Oct 15, 2014, 12:55:34 PM (11 years ago)

Author:

alain

Comment:

--

user_libraries

@@ +1 @@
+= GIET_VM / User Level Libraries =
+
+This section describes the libraries available for user applications:
+
+ === [wiki:library_stdio Stdio library] ===
+
+This library contains all system calls allowing an application
+to access a protected ressource (peripheral register, or protected processor register). 
+Each function in this library contains at least one SYSCALL instruction to enter the kernel mode.
+
+=== [wiki:library_stdlib  Stdlib user library] ===
+
+This library contains various utility functions that do not use system calls.
+
+=== [wiki:library_mwmr  MWMR user library] ===
+
+This library defines a communication middleware
+supporting channelised communications in a multi-tasks parallel application.
+This middleware does not use system calls.
+
+=== [wiki:library_barrier Barrier user library] ===
+
+This library contains functions used to synchronize
+severals tasks in a multi-task parallel application. Most of these functions
+do not use system calls.
+
+=== [wiki:library_locks  Spin_lock user library] ===
+
+This library contains functions used to provide
+exclusive access to a shared ressource in a multi-task parallel application. 
+These functions do not use system calls.
+
+=== [wiki:library_malloc  Malloc user library] ===
+
+This library contains functions allowing an user application
+to dynamically allocate virtual memory from the application heap.
+When the target architecture is clusterized (several physical banks), the heap
+is physically distributed on the clusters, and there is actually on allocator per cluster.