rust example test1

.vscode/tasks.json

@@ -14,6 +14,21 @@
                 "kind": "build",
                 "isDefault": true
             }
+        },
+        {
+            "label": "cargo build",
+            "type": "shell",
+            "command": "cargo rustc --release -- -C linker=true --emit=llvm-ir,llvm-bc",
+            "options": {
+                "cwd": "${workspaceFolder}/rust"
+            },
+            "problemMatcher": [
+                "$rustc"
+            ],
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            }
         }
     ]
 }
\ No newline at end of file

README.md

@@ -27,4 +27,8 @@ Conseqitive re-build is done from the `build` directory using `make`.
     $ cd ctest
     $ clang -S -emit-llvm test1.c 
     $ opt -load ../build/skeleton/libSkeletonPass.* -callgirl test1.ll -o dummy.ll
+    $
+    $ cd rust
+    $ cargo rustc --release -- -C linker=true --emit=llvm-ir,llvm-bc
+    $ opt -load build/callgirl/libCallgirlPass.so -print-callgirl rust/target/release/deps/rust-*.ll -o dummy.ll
 ```

rust/.vscode/tasks.json

+{
+    // See https://go.microsoft.com/fwlink/?LinkId=733558
+    // for the documentation about the tasks.json format
+    "version": "2.0.0",
+    "tasks": [
+        {
+            "label": "cargo src/main",
+            "type": "shell",
+            "command": "cargo rustc --release -- -C linker=true --emit=llvm-ir,llvm-bc",
+            "problemMatcher": [
+                "$rustc"
+            ],
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            }
+        },
+        {
+            "label": "cargo test1",
+            "type": "shell",
+            "command": "cargo rustc --release --example test1 -- -C linker=true --emit=llvm-ir,llvm-bc",
+            "problemMatcher": [
+                "$rustc"
+            ],
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            }
+        }
+    ]
+}
\ No newline at end of file

rust/Cargo.lock

+[[package]]
+name = "panic-abort"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "rust"
 version = "0.1.0"
+dependencies = [
+ "panic-abort 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
 
+[metadata]
+"checksum panic-abort 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2c14a66511ed17b6a8b4256b868d7fd207836d891db15eea5195dbcaf87e630f"

rust/Cargo.toml

@@ -5,6 +5,7 @@ authors = ["pln <Per Lindgren>"]
 # edition = "2018"
 
 [dependencies]
+panic-abort = "0.3.1"
 
 [profile.dev]
 panic = "abort"

rust/examples/test1.rs

+#![no_std]
+#![no_main]
+
+extern crate panic_abort;
+
+use core::ptr;
+
+#[inline(never)]
+fn f1() -> u32 {
+    unsafe { ptr::read_volatile(&0) }
+}
+
+#[no_mangle]
+fn main() {
+    f1();
+}
+
+// cargo rustc --release -- -C linker=true --emit=llvm-ir,llvm-bc

rust/src/main.rs

 #![no_std]
-#![feature(compiler_builtins_lib)]
-#![feature(lang_items)]
-#![feature(core_intrinsics)]
 #![no_main]
 
-use core::intrinsics;
-use core::panic::PanicInfo;
+extern crate panic_abort;
 
-#[panic_handler]
-fn panic(_info: &PanicInfo) -> ! {
-    unsafe { intrinsics::abort() }
-}
+use core::ptr;
 
 #[inline(never)]
 fn f1() -> u32 {
-    0
+    unsafe { ptr::read_volatile(&0) }
 }
 
 #[no_mangle]