feat(cargo): compile freestanding binary

Signed-off-by: Julien CLEMENT <julien.clement@epita.fr>

.cargo/config.toml

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+[target.'cfg(target_os = "linux")']
+rustflags = ["-C", "link-arg=-nostartfiles"]

.gitignore

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+/target

Cargo.lock

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+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "julios"
+version = "0.1.0"

Cargo.toml

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+[package]
+name = "julios"
+version = "0.1.0"
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+
+
+[profile.dev]
+panic = "abort"
+
+[profile.release]
+panic = "abort"
+

src/main.rs

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+#![no_std]
+#![no_main]
+
+#[panic_handler]
+fn panic(_info: &core::panic::PanicInfo) -> !
+{
+    loop {}
+}
+
+#[no_mangle]
+pub extern "C" fn _start() -> !
+{
+    loop {}
+}