cargoプロジェクトからLLVM IRを生成するデモを追加

example/Makefile

@@ -5,9 +5,11 @@ all:
 	${MAKE} -C 8cc         all
 	${MAKE} -C zlib        all
 	${MAKE} -C fizzbuzz-rs all
+	${MAKE} -C numguess-rs all
 
 test:
 	${MAKE} -C fizzbuzz    test
 	${MAKE} -C 8cc         test
 	${MAKE} -C zlib        test
 	${MAKE} -C fizzbuzz-rs test
+	${MAKE} -C numguess-rs test

example/numguess-rs/.gitignore

+target/

example/numguess-rs/Cargo.lock

+[[package]]
+name = "bitflags"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "fuchsia-zircon"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fuchsia-zircon-sys 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "fuchsia-zircon-sys"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "libc"
+version = "0.2.45"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "numguess-rs"
+version = "1.0.0"
+dependencies = [
+ "rand 0.3.22 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "rand"
+version = "0.3.22"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.45 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "rand"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.45 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "winapi"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "winapi-i686-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "winapi-x86_64-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[metadata]
+"checksum bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "228047a76f468627ca71776ecdebd732a3423081fcf5125585bcd7c49886ce12"
+"checksum fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "2e9763c69ebaae630ba35f74888db465e49e259ba1bc0eda7d06f4a067615d82"
+"checksum fuchsia-zircon-sys 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "3dcaa9ae7725d12cdb85b3ad99a434db70b468c09ded17e012d86b5c1010f7a7"
+"checksum libc 0.2.45 (registry+https://github.com/rust-lang/crates.io-index)" = "2d2857ec59fadc0773853c664d2d18e7198e83883e7060b63c924cb077bd5c74"
+"checksum rand 0.3.22 (registry+https://github.com/rust-lang/crates.io-index)" = "15a732abf9d20f0ad8eeb6f909bf6868722d9a06e1e50802b6a70351f40b4eb1"
+"checksum rand 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "8356f47b32624fef5b3301c1be97e5944ecdd595409cc5da11d05f211db6cfbd"
+"checksum winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "92c1eb33641e276cfa214a0522acad57be5c56b10cb348b3c5117db75f3ac4b0"
+"checksum winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
+"checksum winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"

example/numguess-rs/Cargo.toml

+[package]
+name = "numguess-rs"
+version = "1.0.0"
+authors = ["NagayamaRyoga <nagayama15@sec.is.kit.ac.jp>"]
+edition = "2018"
+
+[dependencies]
+rand="0.3.0"

example/numguess-rs/Makefile

+include ../../common.mk
+
+LDFLAGS := \
+	-pthread \
+	-lbacktrace \
+	-ldl \
+	-ljemalloc
+
+all: ${BIN_DIR}/numguess.out
+
+test: ${BIN_DIR}/numguess.out
+
+clean:
+	cargo clean
+
+${BIN_DIR}/numguess.out:
+	@mkdir -p ${@D}
+	cargo rustc --release -v -- -Clto --emit=llvm-ir
+	clang -o $@ target/release/deps/*.ll probestack.s ${LDFLAGS}

example/numguess-rs/probestack.s

+# To avoid undefined reference to `__rust_probestack`.
+# From https://github.com/rust-lang-nursery/compiler-builtins/blob/master/src/probestack.rs
+
+	.global __rust_probestack
+__rust_probestack:
+	mov %rax, %r11
+	cmp $0x1000, %r11
+	jna 3f
+2:
+	sub $0x1000, %rsp
+	test %rsp, 8(%rsp)
+	sub $0x1000, %r11
+	cmp $0x1000, %r11
+	ja 2b
+3:
+	sub %r11, %rsp
+	test %rsp, 8(%rsp)
+	add %rax, %rsp
+	ret

example/numguess-rs/src/main.rs

+extern crate rand;
+
+use std::io;
+use std::cmp::Ordering;
+use rand::Rng;
+
+fn main() {
+    println!("Guess the number!");
+
+    let secret_number = rand::thread_rng().gen_range(1, 101);
+
+    loop {
+        println!("Please input your guess.");
+
+        let mut guess = String::new();
+
+        io::stdin().read_line(&mut guess)
+            .expect("failed to read line");
+
+        let guess: u32 = match guess.trim().parse() {
+            Ok(num) => num,
+            Err(_) => continue,
+        };
+
+        println!("You guessed: {}", guess);
+
+        match guess.cmp(&secret_number) {
+            Ordering::Less    => println!("Too small!"),
+            Ordering::Greater => println!("Too big!"),
+            Ordering::Equal   => {
+                println!("You win!");
+                break;
+            }
+        }
+    }
+}