libl4thread skeleton is introduced.

With this library, it is aimed at easing thread manipulation, utcb handling etc.

SConstruct.userlibs

@@ -44,9 +44,13 @@ libmm, libmc, libmalloc = SConscript('conts/libmem/SConscript', \
                          duplicate = 0, variant_dir = \
                          join(BUILDDIR, os.path.relpath('conts/libmem', PROJROOT)))
 
+libl4thread = SConscript('conts/libl4thread/SConscript', \
+                   exports = { 'env' : env }, duplicate = 0, \
+                   variant_dir = join(BUILDDIR, os.path.relpath('conts/libl4thread', PROJROOT)))
 
 Alias('libl4', libl4)
 Alias('libc', libc)
 Alias('libmm', libmm)
 Alias('libmc', libmc)
 Alias('libmalloc', libmalloc)
+Alias('libl4thread', libl4thread)

conts/libl4thread/SConscript

@@ -0,0 +1,25 @@
+# -*- mode: python; coding: utf-8; -*-
+#
+#  Codezero -- Virtualization microkernel for embedded systems.
+#
+#  Copyright © 2009  B Labs Ltd
+
+import os, sys
+
+# Get global paths
+PROJRELROOT = '../..'
+
+sys.path.append(PROJRELROOT)
+
+from config.projpaths import *
+
+Import('env')
+
+e = env.Clone()
+e.Append(CPPPATH = ['include/l4thread'])
+
+source = [Glob('*.[cS]') + Glob('src/*.[cS]')]
+objects = e.StaticObject(source)
+library = e.StaticLibrary('l4thread', objects)
+
+Return('library')

conts/libl4thread/include/l4thread/thread.h

@@ -0,0 +1,9 @@
+/*
+ *
+ */
+#ifndef __LIB_THREAD_H__
+#define __LIB_THREAD_H__
+
+void l4thread_print(void);
+
+#endif /* __LIB_THREAD_H__ */

conts/libl4thread/src/thread.c

@@ -0,0 +1,10 @@
+/*
+ *
+ */
+
+#include <stdio.h>
+
+void l4thread_print(void)
+{
+	printf("Hello world from libl4thread!\n");
+}