From 18262cfb1b079cb14c98d3d5e5859351bafd36d9 Mon Sep 17 00:00:00 2001
From: Per Lindgren <per.lindgren@ltu.se>
Date: Thu, 15 Nov 2018 14:57:00 +0100
Subject: [PATCH] create args and run opt
---
src/main.rs | 40 +++++++++++++++++++++++++++++++++++++++-
1 file changed, 39 insertions(+), 1 deletion(-)
diff --git a/src/main.rs b/src/main.rs
index fa72331..7758096 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -80,7 +80,7 @@ fn main() {
// print full command for debugging purposes
eprintln!("{:?}", c);
- // spawn process and drive it completion while replicating its stderr in ours
+ // spawn process and drive it until completion while replicating its stderr in ours
let mut p = c.spawn().unwrap();
let mut pstderr = p.stderr.take().unwrap();
let mut buf = [0; 1024];
@@ -102,6 +102,44 @@ fn main() {
let out = parse_out(str::from_utf8(&output).unwrap());
println!("{:?}", out);
+
+ use std::fmt::Write;
+ let mut s = String::new();
+ write!(
+ &mut s,
+ "{}/{}{}.ll",
+ out.out_dir.expect("--out-dir missing"),
+ out.crate_name.expect("--crate-name missing"),
+ out.hash.expect("extra-filename missing")
+ )
+ .expect("internal error");
+
+ println!("s: {}", s);
+
+ let mut c = Command::new("opt");
+ c.arg("-analyze").arg("-print-callgraph").arg(s);
+
+ let mut p = c.spawn().unwrap();
+ let mut pstderr = p.stderr.take().unwrap();
+ let mut buf = [0; 1024];
+ let mut output = vec![];
+
+ let stderr = io::stderr();
+ let mut stderr = stderr.lock();
+ loop {
+ if let Ok(n) = pstderr.read(&mut buf) {
+ stderr.write(&buf[..n]).unwrap();
+ output.extend_from_slice(&buf[..n]);
+ }
+
+ if let Some(status) = p.try_wait().unwrap() {
+ assert!(status.success());
+ break;
+ }
+ }
+
+ // -analyze -print-callgraph /home/pln/rust/stack-test/target/thumbv7m-none-eabi/release/deps/stack_test-87f399c0e9e1fb93.ll
+
// } else {
// panic!("could not determine hash, please recompile in `--release` mode");
// }
--
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