From b66ab5706d0f179bac0881736666a3a88fe36ff4 Mon Sep 17 00:00:00 2001
From: Kosmas Raptis <keeperkosmas6@gmail.com>
Date: Tue, 19 Apr 2022 18:58:53 +0300
Subject: [PATCH] Rust! (but better)

---
 samples/rust/.cargo/config |  2 ++
 samples/rust/Cargo.toml    | 15 +++++++++++++++
 samples/rust/Makefile      | 25 +++++++++++++++++++++++++
 samples/rust/build.rs      | 21 +++++++++++++++++++++
 samples/rust/src/main.rs   | 28 ++++++++++++++++++++++++++++
 samples/rust/xbox.json     | 32 ++++++++++++++++++++++++++++++++
 6 files changed, 123 insertions(+)
 create mode 100644 samples/rust/.cargo/config
 create mode 100644 samples/rust/Cargo.toml
 create mode 100644 samples/rust/Makefile
 create mode 100644 samples/rust/build.rs
 create mode 100644 samples/rust/src/main.rs
 create mode 100644 samples/rust/xbox.json

diff --git a/samples/rust/.cargo/config b/samples/rust/.cargo/config
new file mode 100644
index 000000000..0ab361db3
--- /dev/null
+++ b/samples/rust/.cargo/config
@@ -0,0 +1,2 @@
+[build]
+target = "xbox.json"
\ No newline at end of file
diff --git a/samples/rust/Cargo.toml b/samples/rust/Cargo.toml
new file mode 100644
index 000000000..41a80f3f2
--- /dev/null
+++ b/samples/rust/Cargo.toml
@@ -0,0 +1,15 @@
+[package]
+name = "rustnxdk"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+
+# Default cargo profile
+[profile.dev]
+panic = "abort"
+
+[profile.release]
+panic = "abort"
\ No newline at end of file
diff --git a/samples/rust/Makefile b/samples/rust/Makefile
new file mode 100644
index 000000000..b63a34ecf
--- /dev/null
+++ b/samples/rust/Makefile
@@ -0,0 +1,25 @@
+PROJECT_NAME = rustnxdk
+XISO_NAME = rusttest
+XBE_TITLE = rusttest
+NXDK_DIR = /home/$(USER)/nxdk
+OUTPUT_DIR = bin
+RUSTFLAGS := --target xbox.json -Zbuild-std=core
+
+CXBE = $(NXDK_DIR)/tools/cxbe/cxbe
+XISO = $(NXDK_DIR)/tools/extract-xiso/build/extract-xiso
+
+EXEC_DIR = target/xbox/release
+
+ifeq ($(DEBUG),y)
+    EXEC_DIR = target/xbox/debug
+else
+    RUSTFLAGS += --release
+endif
+
+all:
+	@mkdir -p $(OUTPUT_DIR)
+	@cargo build $(RUSTFLAGS)
+	@cp $(EXEC_DIR)/$(PROJECT_NAME).exe ./main.exe
+	$(CXBE) -OUT:default.xbe -TITLE:$(XBE_TITLE) ./main.exe
+	@mv default.xbe $(OUTPUT_DIR)
+	$(XISO) -c $(OUTPUT_DIR) $(XISO_NAME).iso
\ No newline at end of file
diff --git a/samples/rust/build.rs b/samples/rust/build.rs
new file mode 100644
index 000000000..de0debe53
--- /dev/null
+++ b/samples/rust/build.rs
@@ -0,0 +1,21 @@
+extern crate core;
+use std::env;
+
+fn main() {
+    let nxdk_dir = match env::var("NXDK_DIR") {
+        Ok(value) => value,
+        Err(e) => panic!("Error getting NXDK_DIR variable: {}", e)
+    };
+
+    println!("cargo:build-std=core");
+    println!("cargo:rustc-link-search={}/lib/xboxkrnl", nxdk_dir);
+    println!("cargo:rustc-link-lib=static=libxboxkrnl");
+    println!("cargo:rustc-link-search={}/lib/", nxdk_dir);
+    println!("cargo:rustc-link-lib=static=libpdclib");
+    println!("cargo:rustc-link-lib=static=libwinapi");
+    println!("cargo:rustc-link-lib=static=libxboxrt");
+    println!("cargo:rustc-link-lib=static=libnxdk_hal");
+
+
+
+}
\ No newline at end of file
diff --git a/samples/rust/src/main.rs b/samples/rust/src/main.rs
new file mode 100644
index 000000000..c65bb2da6
--- /dev/null
+++ b/samples/rust/src/main.rs
@@ -0,0 +1,28 @@
+#![no_std] // don't link the Rust standard library
+#![no_main] // disable all Rust-level entry points
+
+use core::panic::PanicInfo;
+
+#[link (name="libnxdk_hal")]
+extern "C" {
+    fn XVideoSetMode(_: i32, _: i32, _: i32, _:i32);
+    fn debugPrint(_: &str);
+}
+
+#[no_mangle]
+fn main() -> i32 {
+    unsafe {
+        // 640x480, 32bpp, 60Hz
+        XVideoSetMode(640, 480, 32, 60);
+        debugPrint("Hello from Rust");
+    }
+    loop {
+
+    }
+}
+
+// This function is called on panic.
+#[panic_handler]
+fn panic(_info: &PanicInfo) -> ! {
+    loop {}
+}
\ No newline at end of file
diff --git a/samples/rust/xbox.json b/samples/rust/xbox.json
new file mode 100644
index 000000000..197ff063a
--- /dev/null
+++ b/samples/rust/xbox.json
@@ -0,0 +1,32 @@
+{
+  "abi-return-struct-as-int": true,
+  "arch": "x86",
+  "cpu": "pentium3",
+  "data-layout": "e-m:x-p:32:32-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32-a:0:32-S32",
+  "dll-prefix": "",
+  "dll-suffix": ".dll",
+  "env": "msvc",
+  "exe-suffix": ".exe",
+  "executables": true,
+  "is-like-msvc": false,
+  "is-like-windows": true,
+  "linker-flavor": "lld-link",
+  "linker-is-gnu": false,
+  "lld-flavor": "link",
+  "llvm-target": "i386-pc-win32",
+  "max-atomic-width": 64,
+  "os": "none",
+  "pre-link-args": {
+    "lld-link": [
+      "-subsystem:windows",
+      "-fixed",
+      "-base:0x00010000",
+      "-stack:65536",
+      "-merge:.edata=.edataxb"
+    ]
+  },
+  "requires-uwtable": true,
+  "target-pointer-width": "32",
+  "target-family": "windows",
+  "vendor": "pc"
+}