meta: add build system

programs/CMakeLists.txt

@@ -0,0 +1,9 @@
+file(GLOB items *)
+
+foreach(item ${items})
+	if (NOT IS_DIRECTORY ${item})
+		continue()
+	endif ()
+
+	add_subdirectory(${item})
+endforeach (item)

programs/test/CMakeLists.txt

@@ -0,0 +1,9 @@
+add_executable(test test.c)
+target_link_libraries(test c)
+
+sysroot_add_program(
+	NAME test
+	BIN_DIR /usr/bin)
+bsp_add_program(
+	NAME test
+	BIN_DIR /usr/bin)

programs/test/test.c

@@ -0,0 +1,6 @@
+#include <function.h>
+
+int _start(void)
+{
+	return function();
+}