Merge #447

447: Add implementation for critical-section 1.0 r=adamgreig a=Dirbaio

Picking up #433 since it seems stalled. Changes from #433 are:
- Update to `critical-section 1.0.0-alpha.2`
- Use `bool` restore token
- Name Cargo feature `critical-section-single-core`.

TODO before merging:

- [x] Wait for `critical-section 1.0` release https://github.com/rust-embedded/critical-section/pull/19

Co-Authored-By: Markus Reiter `@reitermarkus` 

Co-authored-by: Dario Nieuwenhuis <dirbaio@dirbaio.net>

1 files changed, 7 insertions, 0 deletions

diff --git a/xtask/tests/ci.rs b/xtask/tests/ci.rs
index 603491c..1dc4754 100644
--- a/xtask/tests/ci.rs
+++ b/xtask/tests/ci.rs
@@ -32,6 +32,13 @@ fn build(package: &str, target: &str, features: &[&str]) {
         cargo.args(&["--features", *feat]);
     }
 
+    // A `critical_section` implementation is always needed.
+    if package == "cortex-m" {
+        cargo.args(&["--features", "critical-section-single-core"]);
+    } else {
+        cargo.args(&["--features", "cortex-m/critical-section-single-core"]);
+    }
+
     // Cargo features don't work right when invoked from the workspace root, so change to the
     // package's directory when necessary.
     if package != "cortex-m" {