Cmake build generator support: build stage

Multi-target architecture implementation:
    each root source code directory presents the one
    *INTERFACE* target to it's subdirectory subtargets
    that link only as *STATIC* library.
    For instance, *arch* directory presents *Architecture* target
    then *Architecture* target has *CPUID*, *IO*, *PORT*
    and etc. dependencies

Exact order of linking targets is: boot.o CRTIBUNDLE <TARGETS> CRTNBUNDLE.
Sequence destruction cause to UB. Please to pay attention to this.

TODO
- Debug information
- Build type
- Toolchain file
- Image creation
- Build by WinGW compiler on Windows platform (optional)

Signed-off-by: Alexey Gavrilov <alexey.gavrilov@mail.com>

1 files changed, 17 insertions, 0 deletions

diff --git a/arch/CMakeLists.txt b/arch/CMakeLists.txt
new file mode 100644
index 0000000..c8719ce
--- /dev/null
+++ b/arch/CMakeLists.txt
@@ -0,0 +1,17 @@
+add_library(Architecture INTERFACE)
+
+add_library(Initialization STATIC)
+target_link_libraries(Initialization PUBLIC CXX_COMPILER_REQUIREMENTS)
+
+target_sources(Initialization PRIVATE
+    ${CMAKE_CURRENT_LIST_DIR}/SecondaryInit.cpp
+)
+
+target_sources(Initialization
+    PUBLIC
+        FILE_SET HEADERS
+        FILES
+            ${CMAKE_CURRENT_LIST_DIR}/SecondaryInit.h
+)
+
+add_subdirectory(${ARCH})