Merge #176

176:  implement RFCs 147 and 155, fix #141, etc. r=japaric a=japaric

This PR:

- Implements RFC 147: "all functions must be safe"

- Implements RFC 155: "explicit Context parameter"

- Implements the pending breaking change #141: reject assign syntax in `init`
  (which was used to initialize late resources)

- Refactors code generation to make it more readable -- there are no more random
  identifiers in the output -- and align it with the book description of RTFM
  internals (see PR #175).

- Makes the framework hard depend on `core::mem::MaybeUninit` and thus will
  require nightly until that API is stabilized.

- Fixes a ceiling analysis bug where the priority of the system timer was not
  considered in the analysis (TODO backport this into the v0.4.x branch).

- Shrinks the size of all the internal queues by turning `AtomicUsize` indices
  into `AtomicU8`s.

- Removes the integration with `owned_singleton`.

closes #141
closes #147
closes #155

Additionally:

- This changes CI to push v0.5.x docs to
  https://japaric.github.io/rtfm5/book/en/ -- we need to do this because our
  official docs are hosted on https://japaric.github.io/cortex-m-rtfm and we
  need to keep them on v0.4.x until we release v0.5.0

- I propose that we use the master branch to develop the upcoming v0.5.0.

- I have created a branch v0.4.x for backports; new v0.4.x releases will come
  from that branch.

r? @korken89 @texitoi, sorry for doing all the impl work in a single commit --
I know that makes things harder to review for you.

Suggestions for compile-pass and compile-fail tests are welcome


Co-authored-by: Jorge Aparicio <jorge@japaric.io>

1 files changed, 6 insertions, 6 deletions

diff --git a/tests/cpass/late-not-send.rs b/tests/cpass/late-not-send.rs
index 5b278ab..0f69096 100644
--- a/tests/cpass/late-not-send.rs
+++ b/tests/cpass/late-not-send.rs
@@ -1,3 +1,5 @@
+#![deny(unsafe_code)]
+#![deny(warnings)]
 #![no_main]
 #![no_std]
 
@@ -7,20 +9,18 @@ extern crate rtfm;
 
 use core::marker::PhantomData;
 
-use rtfm::app;
-
 pub struct NotSend {
     _0: PhantomData<*const ()>,
 }
 
-#[app(device = lm3s6965)]
+#[rtfm::app(device = lm3s6965)]
 const APP: () = {
     static mut X: NotSend = ();
     static mut Y: Option<NotSend> = None;
 
     #[init(resources = [Y])]
-    fn init() -> init::LateResources {
-        *resources.Y = Some(NotSend { _0: PhantomData });
+    fn init(c: init::Context) -> init::LateResources {
+        *c.resources.Y = Some(NotSend { _0: PhantomData });
 
         init::LateResources {
             X: NotSend { _0: PhantomData },
@@ -28,7 +28,7 @@ const APP: () = {
     }
 
     #[idle(resources = [X, Y])]
-    fn idle() -> ! {
+    fn idle(_: idle::Context) -> ! {
         loop {}
     }
 };