From 12ae01cda220cc9a1c559df89ff370f050d0e685 Mon Sep 17 00:00:00 2001
From: Eyck-Alexander Jentzsch <alex@minres.com>
Date: Fri, 10 Apr 2026 13:14:40 +0200
Subject: [PATCH] WIP: makes moonlight now the base library with no
 dependencies to be consumed by others

---
 port/moonlight/CMakeLists.txt | 110 ++++++++++------------------------
 1 file changed, 30 insertions(+), 80 deletions(-)

diff --git a/port/moonlight/CMakeLists.txt b/port/moonlight/CMakeLists.txt
index f56fa22..9aaa935 100644
--- a/port/moonlight/CMakeLists.txt
+++ b/port/moonlight/CMakeLists.txt
@@ -1,91 +1,41 @@
-set(MOONLIGHT_ROOT ${CMAKE_CURRENT_LIST_DIR})
-set(THREADX4TGFS_ROOT ${CMAKE_CURRENT_SOURCE_DIR}/../..)
-set(MOONLIGHT_SRC_DIR ${MOONLIGHT_ROOT}/src)
-set(MOONLIGHT_INC_DIR ${MOONLIGHT_ROOT}/inc)
+cmake_minimum_required(VERSION 3.21)
+project(moonlight LANGUAGES C)
 
-if(NOT DEFINED MOONLIGHT_TRAP_SOURCE) # Hook to use vectored traps, also used in regression testing
+
+set(MOONLIGHT_ROOT ${CMAKE_CURRENT_LIST_DIR})
+set(MOONLIGHT_INC_DIR ${MOONLIGHT_ROOT}/inc)
+set(MOONLIGHT_SRC_DIR ${MOONLIGHT_ROOT}/src)
+set(MOONLIGHT_LDS_DIR ${MOONLIGHT_ROOT}/lds)
+
+if(NOT DEFINED TARGET_MEM)
+  set(TARGET_MEM "ram" CACHE STRING "memory map to use")
+endif()
+
+if(NOT DEFINED MOONLIGHT_TRAP_SOURCE)
   set(MOONLIGHT_TRAP_SOURCE ${MOONLIGHT_SRC_DIR}/trap_non_vectored.c)
 endif()
 
-set(MOONLIGHT_PLATFORM_SOURCES
-  ${THREADX4TGFS_ROOT}/port/picolibc/port.c
-  ${MOONLIGHT_SRC_DIR}/bootup.c
+add_library(moonlight STATIC
   ${MOONLIGHT_SRC_DIR}/board.c
-  ${MOONLIGHT_TRAP_SOURCE}
+  ${MOONLIGHT_SRC_DIR}/bootup.c
   ${MOONLIGHT_SRC_DIR}/exception.c
-  ${MOONLIGHT_SRC_DIR}/vector_table.c)
+  ${MOONLIGHT_TRAP_SOURCE}
+)
 
-# define a basic library containing all generic board components
-add_library(moonlight_platform_defaults INTERFACE)
-target_include_directories(moonlight_platform_defaults INTERFACE
-  ${MOONLIGHT_INC_DIR}
-  ${THREADX4TGFS_ROOT}/src)
-target_compile_options(moonlight_platform_defaults INTERFACE
+target_include_directories(moonlight PUBLIC ${MOONLIGHT_INC_DIR})
+target_link_directories(moonlight INTERFACE ${MOONLIGHT_LDS_DIR})
+
+target_compile_options(moonlight
+  PUBLIC
   -ffreestanding
   -fno-builtin
   -fdata-sections
-  -ffunction-sections)
-target_link_directories(moonlight_platform_defaults INTERFACE
-  ${THREADX4TGFS_ROOT}/src)
-if(NX_DEBUG)
-  target_compile_definitions(moonlight_platform_defaults INTERFACE
-    NX_DEBUG
-    NX_DEBUG_PACKET)
-endif()
+  -ffunction-sections
+)
 
-# helper to tie in different threadx runtimes
-function(moonlight_define_platform TARGET THREADX_TARGET)
-  add_library(${TARGET} OBJECT
-    ${MOONLIGHT_PLATFORM_SOURCES})
-  target_link_libraries(${TARGET} PUBLIC
-    moonlight_platform_defaults
-    c
-    ${THREADX_TARGET})
-endfunction()
-
-if(TARGET threadx)
-  moonlight_define_platform(moonlight_platform_common threadx)
-endif()
-
-if(TARGET threadx_smp)
-  moonlight_define_platform(moonlight_platform_common_smp threadx_smp)
-endif()
-
-if(DEFINED NETXDUO_CUSTOM_PORT)
-  add_library(moonlight_network_driver OBJECT
-    ${MOONLIGHT_SRC_DIR}/mnrs_network_driver.c)
-  target_link_libraries(moonlight_network_driver PUBLIC
-    moonlight_platform_defaults
-    c
-    threadx
-    netxduo)
-endif()
-
-# helper for consumers to inject moonlight as a dependency into a target
-function(target_add_moonlight_platform TARGET)
-  set(options)
-  set(oneValueArgs PLATFORM_TARGET)
-  cmake_parse_arguments(TAMP "${options}" "${oneValueArgs}" "" ${ARGN})
-
-  if(TAMP_UNPARSED_ARGUMENTS)
-    message(FATAL_ERROR "target_add_moonlight_platform(${TARGET} ...): unknown args: ${TAMP_UNPARSED_ARGUMENTS}")
-  endif()
-
-  if(NOT TAMP_PLATFORM_TARGET)
-    if(NOT TARGET moonlight_platform_common)
-      message(FATAL_ERROR "moonlight_platform_common is not available in this build; pass PLATFORM_TARGET explicitly")
-    endif()
-    set(TAMP_PLATFORM_TARGET moonlight_platform_common)
-  endif()
-
-  target_link_libraries(${TARGET} PRIVATE ${TAMP_PLATFORM_TARGET})
-endfunction()
-
-# helper to inject the network driver into a target
-function(target_add_moonlight_network_driver TARGET)
-  if(NOT TARGET moonlight_network_driver)
-    message(FATAL_ERROR "moonlight_network_driver requires netxduo to be available in this build")
-  endif()
-
-  target_link_libraries(${TARGET} PRIVATE moonlight_network_driver)
-endfunction()
+target_link_options(moonlight
+  INTERFACE
+  -nostartfiles
+  -T ${MOONLIGHT_LDS_DIR}/${TARGET_MEM}.lds
+  -Wl,--gc-sections
+)