lib: project structure for rustsbi-prototyper package

Signed-off-by: Zhouqi Jiang <luojia@hust.edu.cn>

Cargo.lock

@@ -2,9 +2,18 @@
 # It is not intended for manual editing.
 version = 3
 
+[[package]]
+name = "panic-halt"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "de96540e0ebde571dc55c73d60ef407c653844e6f9a1e2fdbd40c07b9252d812"
+
 [[package]]
 name = "rustsbi-prototyper"
-version = "0.1.0"
+version = "0.0.0"
+dependencies = [
+ "panic-halt",
+]
 
 [[package]]
 name = "xtask"

Cargo.toml

@@ -1,9 +1,23 @@
+cargo-features = ["per-package-target"]
+
 [package]
 name = "rustsbi-prototyper"
-version = "0.1.0"
-edition = "2021"
+version = "0.0.0"
+edition.workspace = true
+license.workspace = true
+repository.workspace = true
+forced-target = "riscv64imac-unknown-none-elf"
 
 [dependencies]
+panic-halt = "0.2.0"
 
 [workspace]
 members = ["xtask"]
+
+[workspace.package]
+edition = "2021"
+license = "MulanPSL-2.0 OR MIT"
+repository = "https://github.com/rustsbi/prototyper"
+
+[profile.release]
+debug = true

src/main.rs

@@ -1,3 +1,4 @@
-fn main() {
-    println!("Hello, world!");
-}
+#![no_std]
+#![no_main]
+
+use panic_halt as _;