From a67288f62e5466987acb7d29c39aec981965655a Mon Sep 17 00:00:00 2001
From: Matt Penny <mwpenny@users.noreply.github.com>
Date: Tue, 24 Sep 2024 01:01:57 -0400
Subject: [PATCH] Add barebones N64 CMake toolchain files

Just focus on compilation for now
---
 cmake/toolchain_libultra.cmake |  9 +++++++++
 cmake/toolchain_n64.cmake      | 21 +++++++++++++++++++++
 2 files changed, 30 insertions(+)
 create mode 100644 cmake/toolchain_libultra.cmake
 create mode 100644 cmake/toolchain_n64.cmake

diff --git a/cmake/toolchain_libultra.cmake b/cmake/toolchain_libultra.cmake
new file mode 100644
index 0000000..a7ff50f
--- /dev/null
+++ b/cmake/toolchain_libultra.cmake
@@ -0,0 +1,9 @@
+include("${CMAKE_CURRENT_LIST_DIR}/toolchain_n64.cmake")
+set(LIBULTRA TRUE)
+
+set(LIBULTRA_INCLUDE_DIRS
+    "${N64_TOOLCHAIN_PREFIX}/usr/include/n64"
+    "${N64_TOOLCHAIN_PREFIX}/usr/include/n64/PR"
+)
+
+# TODO: libs
diff --git a/cmake/toolchain_n64.cmake b/cmake/toolchain_n64.cmake
new file mode 100644
index 0000000..237f1fa
--- /dev/null
+++ b/cmake/toolchain_n64.cmake
@@ -0,0 +1,21 @@
+set(CMAKE_SYSTEM_NAME Generic)
+
+set(N64_TOOLCHAIN_PREFIX "" CACHE PATH "Root directory of N64 toolchain")
+set(N64_BIN_DIR "${N64_TOOLCHAIN_PREFIX}/bin")
+
+# Search for programs in the host environment
+# Search for headers and libraries in the target environment
+set(CMAKE_FIND_ROOT_PATH "${N64_TOOLCHAIN_PREFIX}")
+set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
+
+# Ensure CMake can find toolchain during compiler tests
+list(APPEND CMAKE_TRY_COMPILE_PLATFORM_VARIABLES N64_TOOLCHAIN_PREFIX)
+
+# Don't try to dynamically link during compiler tests
+set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY)
+
+# TODO: find assembler, linker, etc.
+# TODO: set flags
+find_program(CMAKE_C_COMPILER mips64-elf-gcc PATHS ${N64_BIN_DIR} REQUIRED)