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, 0 insertions, 66 deletions

diff --git a/tests/cpass/singleton.rs b/tests/cpass/singleton.rs
deleted file mode 100644
index d50f8523..00000000
--- a/tests/cpass/singleton.rs
+++ /dev/null
@@ -1,66 +0,0 @@
-#![no_main]
-#![no_std]
-
-extern crate lm3s6965;
-extern crate owned_singleton;
-extern crate panic_halt;
-extern crate rtfm;
-
-use rtfm::{app, Exclusive};
-
-#[app(device = lm3s6965)]
-const APP: () = {
-    #[Singleton]
-    static mut O1: u32 = 0;
-    #[Singleton]
-    static mut O2: u32 = 0;
-    #[Singleton]
-    static mut O3: u32 = 0;
-    #[Singleton]
-    static O4: u32 = 0;
-    #[Singleton]
-    static O5: u32 = 0;
-    #[Singleton]
-    static O6: u32 = 0;
-
-    #[Singleton]
-    static mut S1: u32 = 0;
-    #[Singleton]
-    static S2: u32 = 0;
-
-    #[init(resources = [O1, O2, O3, O4, O5, O6, S1, S2])]
-    fn init() {
-        let _: O1 = resources.O1;
-        let _: &mut O2 = resources.O2;
-        let _: &mut O3 = resources.O3;
-        let _: O4 = resources.O4;
-        let _: &mut O5 = resources.O5;
-        let _: &mut O6 = resources.O6;
-
-        let _: &mut S1 = resources.S1;
-        let _: &mut S2 = resources.S2;
-    }
-
-    #[idle(resources = [O2, O5])]
-    fn idle() -> ! {
-        let _: O2 = resources.O2;
-        let _: O5 = resources.O5;
-
-        loop {}
-    }
-
-    #[interrupt(resources = [O3, O6, S1, S2])]
-    fn UART0() {
-        let _: &mut O3 = resources.O3;
-        let _: &O6 = resources.O6;
-
-        let _: Exclusive<S1> = resources.S1;
-        let _: &S2 = resources.S2;
-    }
-
-    #[interrupt(resources = [S1, S2])]
-    fn UART1() {
-        let _: Exclusive<S1> = resources.S1;
-        let _: &S2 = resources.S2;
-    }
-};