From 3f7102d7193d3c0f6cdda8e3106aac77188bb475 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Gustav=20S=C3=B6rn=C3=A4s?= <gustav@sornas.net>
Date: Mon, 23 Nov 2020 04:07:45 +0100
Subject: intial rs

---
 TODO                | 19 +++++++++++++++++++
 halt/Cargo.toml     | 18 ++++++++++++++++++
 halt/main.c         |  5 +++++
 halt/rust-toolchain |  1 +
 halt/rust.h         |  1 +
 halt/src/main.rs    | 26 ++++++++++++++++++++++++++
 6 files changed, 70 insertions(+)
 create mode 100644 TODO
 create mode 100644 halt/Cargo.toml
 create mode 100644 halt/main.c
 create mode 100644 halt/rust-toolchain
 create mode 100644 halt/rust.h
 create mode 100644 halt/src/main.rs

diff --git a/TODO b/TODO
new file mode 100644
index 0000000..8813f46
--- /dev/null
+++ b/TODO
@@ -0,0 +1,19 @@
+1: Hijacka deras Makefiler så de bygger rust, kopierar rust FFI och länkar.
+Deras Makefiler fungerar uppenbarligen och koden borde kunna anropa rust FFI utan problem.
+
+2: Anropa deras libc från Rust, men börja med att typ returnera en int.
+
+3: userprog/rust.c som skickar allt till rust.
+
+4: build.rs som hanterar hela bygg-grejen.
+
+.
+.
+.
+
+99: i686-unknown-pintos
+
+rust.h:
+int rust_main(int argc, char **argv);
+
+Haltar via exit i entry.c
diff --git a/halt/Cargo.toml b/halt/Cargo.toml
new file mode 100644
index 0000000..160a513
--- /dev/null
+++ b/halt/Cargo.toml
@@ -0,0 +1,18 @@
+[package]
+name = "halt"
+version = "0.1.0"
+authors = ["Gustav Sörnäs <gustav@sornas.net>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[profile.dev]
+panic = "abort"
+
+[profile.release]
+panic = "abort"
+
+[dependencies.libc]
+version = "0.2"
+default-features = false
+features = ["extra_traits"]
diff --git a/halt/main.c b/halt/main.c
new file mode 100644
index 0000000..c89be21
--- /dev/null
+++ b/halt/main.c
@@ -0,0 +1,5 @@
+#include "rust.h"
+
+void _start (int argc, char **argv) {
+    main();
+}
diff --git a/halt/rust-toolchain b/halt/rust-toolchain
new file mode 100644
index 0000000..adfa491
--- /dev/null
+++ b/halt/rust-toolchain
@@ -0,0 +1 @@
+nightly-i686-unknown-linux-gnu
diff --git a/halt/rust.h b/halt/rust.h
new file mode 100644
index 0000000..eba2976
--- /dev/null
+++ b/halt/rust.h
@@ -0,0 +1 @@
+int main(void);
diff --git a/halt/src/main.rs b/halt/src/main.rs
new file mode 100644
index 0000000..8abf38a
--- /dev/null
+++ b/halt/src/main.rs
@@ -0,0 +1,26 @@
+#![no_std]
+#![no_main]
+#![feature(start)]
+//#![feature(asm)]
+//#![link_args = "-L -lmain"]
+
+#[panic_handler]
+fn panic(_info: &core::panic::PanicInfo) -> ! {
+    loop {}
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn main() {
+    exit(0x69);
+}
+
+#[link(name="pintos", kind="static")]
+extern {
+    fn exit(status: i32);
+}
+
+//#[no_mangle]
+//#[start]
+//unsafe extern "C" fn _start() {
+//    exit(main());
+//}
-- 
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