use less unstable features

.travis.yml

@@ -0,0 +1,51 @@
+language: rust
+
+matrix:
+  include:
+    - env: TARGET=x86_64-unknown-linux-gnu
+      rust: nightly
+
+    - env: TARGET=thumbv7m-none-eabi
+      rust: nightly
+      addons:
+        apt:
+          packages:
+            - gcc-arm-none-eabi
+
+    - env: TARGET=thumbv7em-none-eabi
+      rust: nightly
+      addons:
+        apt:
+          packages:
+            - gcc-arm-none-eabi
+
+    - env: TARGET=thumbv7em-none-eabihf
+      rust: nightly
+      addons:
+        apt:
+          packages:
+            - gcc-arm-none-eabi
+
+before_install: set -e
+
+install:
+  - bash ci/install.sh
+
+script:
+  - bash ci/script.sh
+
+after_script: set +e
+
+cache: cache
+
+before_cache:
+  - chmod -R a+r $HOME/.cargo;
+
+branches:
+  only:
+    - staging
+    - trying
+
+notifications:
+  email:
+    on_success: never

Cargo.toml

@@ -6,8 +6,8 @@ keywords = ["panic-impl", "panic", "ITM", "ARM", "Cortex-M"]
 license = "MIT OR Apache-2.0"
 name = "panic-itm"
 repository = "https://github.com/japaric/panic-itm"
-version = "0.1.0"
+version = "0.1.1"
 
 [dependencies]
-cortex-m = "0.4.3"
-aligned = "0.1.1"
+aligned = "0.2.0"
+cortex-m = "0.5.0"

bors.toml

@@ -0,0 +1,3 @@
+status = [
+  "continuous-integration/travis-ci/push",
+]

ci/install.sh

@@ -0,0 +1,9 @@
+set -euxo pipefail
+
+main() {
+    if [ $TARGET != x86_64-unknown-linux-gnu ]; then
+        rustup target add $TARGET
+    fi
+}
+
+main

ci/script.sh

@@ -0,0 +1,7 @@
+set -euxo pipefail
+
+main() {
+    cargo check --target $TARGET
+}
+
+main

src/lib.rs

@@ -29,16 +29,13 @@
 
 #![deny(missing_docs)]
 #![deny(warnings)]
-#![feature(core_intrinsics)]
 #![feature(lang_items)]
 #![no_std]
 
 extern crate aligned;
 #[macro_use]
 extern crate cortex_m;
 
-use core::intrinsics;
-
 use aligned::Aligned;
 use cortex_m::peripheral::ITM;
 use cortex_m::{interrupt, itm};
@@ -57,10 +54,9 @@ unsafe extern "C" fn panic_fmt(
 
     itm::write_aligned(stim, &Aligned(*b"panicked at '"));
     itm::write_fmt(stim, args);
-    itm::write_str(stim, "', ");
+    itm::write_aligned(stim, &Aligned(*b"', "));
     itm::write_str(stim, file);
     iprintln!(stim, ":{}:{}", line, col);
 
-    // XXX What should be the behavior after logging the message?
-    intrinsics::abort()
+    loop {}
 }