Initial TWL toolchain

.gitignore

@@ -103,6 +103,7 @@ build_linux_arm64_flatpak/*
 build_linux_x86_64_flatpak/*
 build_android_aarch64/*
 build_android_arm32/*
+build_nintendo_dsi/*
 flatpak_openjkdf2/*
 .flatpak-builder/*
 OpenJKDF2.flatpak

CMakeLists.txt

@@ -31,10 +31,11 @@ set(PLAT_WASM FALSE CACHE BOOL "Emscripten WASM target")
 set(PLAT_HOOKS FALSE CACHE BOOL "Hook DLL target")
 set(PLAT_MSVC FALSE CACHE BOOL "Windows 64-bit MSVC")
 set(PLAT_ANDROID_ARM64 FALSE CACHE BOOL "Android AArch64")
+set(PLAT_TWL FALSE CACHE BOOL "Nintendo DSi")
 set(PLAT_AUTO FALSE CACHE BOOL "Target the host OS")
 
 # Set PLAT_AUTO if a platform isn't specifically selected
-if(NOT PLAT_LINUX_32 AND NOT PLAT_LINUX_64 AND NOT PLAT_MACOS AND NOT PLAT_MACOS_X86_64 AND NOT PLAT_MINGW_X86_64 AND NOT PLAT_WASM AND NOT PLAT_HOOKS)
+if(NOT PLAT_LINUX_32 AND NOT PLAT_LINUX_64 AND NOT PLAT_MACOS AND NOT PLAT_MACOS_X86_64 AND NOT PLAT_MINGW_X86_64 AND NOT PLAT_WASM AND NOT PLAT_HOOKS AND NOT PLAT_TWL)
     set(PLAT_AUTO TRUE)
 endif()
 
@@ -57,6 +58,7 @@ set(TARGET_WIN32 FALSE)
 set(TARGET_WASM FALSE)
 set(TARGET_ANDROID FALSE)
 set(TARGET_ANDROID_ARM64 FALSE)
+set(TARGET_TWL FALSE)
 set(TARGET_HOOKS FALSE)
 set(TARGET_NO_BLOBS FALSE)
 set(TARGET_CAN_JKGM FALSE)
@@ -133,6 +135,8 @@ elseif(PLAT_ANDROID_ARM64)
     include(cmake_modules/plat_android_arm64.cmake)
 elseif(PLAT_MSVC)
     include(cmake_modules/plat_msvc.cmake)
+elseif(PLAT_TWL)
+    include(cmake_modules/plat_twl.cmake)
 else()
     message(FATAL_ERROR "Unknown platform! Cannot continue.")
 endif()

build_twl.sh

@@ -0,0 +1,19 @@
+#!/bin/sh
+#make flex/flex
+#make byacc/yacc
+
+export OPENJKDF2_RELEASE_COMMIT=$(git log -1 --format="%H")
+export OPENJKDF2_RELEASE_COMMIT_SHORT=$(git rev-parse --short=8 HEAD)
+
+#NDK_TOOLCHAIN_BINS=$(dirname $(find "$ANDROID_NDK_HOME/" -name "aarch64-linux-android31-clang"))
+#PATH=$PATH:$NDK_TOOLCHAIN_BINS
+
+#rm -rf build_win64
+mkdir -p build_nintendo_dsi && cd build_nintendo_dsi
+OPENJKDF2_BUILD_DIR=$(pwd)
+
+# Prevent macOS headers from getting linked in
+export -n SDKROOT MACOSX_DEPLOYMENT_TARGET CPLUS_INCLUDE_PATH C_INCLUDE_PATH
+
+cmake .. --toolchain $(pwd)/../cmake_modules/toolchain_twl.cmake && make -j10 openjkdf2
+cd ..

cmake_modules/plat_twl.cmake

@@ -0,0 +1,45 @@
+macro(plat_initialize)
+    message( STATUS "Targeting Nintendo DSi" )
+
+    set(BIN_NAME "openjkdf2")
+
+    #add_definitions(-DARCH_WASM)
+
+    # These are the standard features for full game support
+    set(TARGET_USE_PHYSFS FALSE)
+    #set(TARGET_USE_BASICSOCKETS TRUE)
+    set(TARGET_USE_GAMENETWORKINGSOCKETS FALSE)
+    set(TARGET_USE_LIBSMACKER TRUE)
+    set(TARGET_USE_LIBSMUSHER TRUE)
+    set(TARGET_USE_SDL2 FALSE)
+    set(TARGET_USE_OPENGL FALSE)
+    set(TARGET_USE_OPENAL FALSE)
+    set(TARGET_POSIX TRUE)
+    set(TARGET_NO_BLOBS TRUE)
+    set(TARGET_CAN_JKGM FALSE)
+    set(OPENJKDF2_NO_ASAN TRUE)
+    set(TARGET_USE_CURL FALSE)
+    set(TARGET_FIND_OPENAL FALSE)
+
+    if(OPENJKDF2_USE_BLOBS)
+        set(TARGET_NO_BLOBS FALSE)
+    endif()
+
+    set(TARGET_BUILD_TESTS FALSE)
+    set(SDL2_COMMON_LIBS "")
+
+    set(TARGET_TWL TRUE)
+
+    add_link_options(-fno-exceptions)
+    add_compile_options(-fno-exceptions)
+    add_compile_options(-O2 -Wuninitialized -fshort-wchar -Wall -Wno-unused-variable -Wno-parentheses -Wno-missing-braces)
+endmacro()
+
+macro(plat_specific_deps)
+    set(SDL2_COMMON_LIBS "")
+endmacro()
+
+macro(plat_link_and_package)
+    target_link_libraries(${BIN_NAME} PRIVATE -lm -lSDL2 -lSDL2_mixer -lGL -lGLEW -lopenal)
+    target_link_libraries(sith_engine PRIVATE nlohmann_json::nlohmann_json)
+endmacro()

cmake_modules/toolchain_twl.cmake

@@ -0,0 +1,40 @@
+# CMake toolchain file
+set(CMAKE_SYSTEM_NAME Generic)
+set(CMAKE_SYSTEM_VERSION "0.0.0")
+set(CMAKE_SYSTEM_PROCESSOR arm)
+
+if(DEFINED ENV{DEVKITPRO})
+    set(DEVKITPRO $ENV{DEVKITPRO})
+else()
+    set(DEVKITPRO /opt/devkitpro)
+endif()
+
+if(DEFINED ENV{DEVKITARM})
+    set(DEVKITARM $ENV{DEVKITARM})
+else()
+    set(DEVKITARM ${DEVKITPRO}/devkitARM)
+endif()
+
+if(DEFINED ENV{NDSTOOL})
+    set(NDSTOOL $ENV{NDSTOOL})
+else()
+    set(NDSTOOL ${DEVKITPRO}/tools/bin/ndstool)
+endif()
+
+set(TOOLCHAIN_PREFIX arm-none-eabi)
+set(TOOLCHAIN_PREFIX_PATH ${DEVKITARM}/bin/${TOOLCHAIN_PREFIX})
+
+set(CMAKE_C_COMPILER   "${TOOLCHAIN_PREFIX_PATH}-gcc" CACHE STRING "C compiler" FORCE)
+set(CMAKE_CXX_COMPILER "${TOOLCHAIN_PREFIX_PATH}-g++" CACHE STRING "C++ compiler" FORCE)
+
+set(CMAKE_C_FLAGS_INIT "")
+set(CMAKE_CXX_FLAGS_INIT ${CMAKE_C_FLAGS_INIT})
+
+set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
+
+set(PLAT_TWL TRUE)
+
+message( STATUS "Nintendo DSi ARM32 toolchain invoked" )