RISC-V support over CLINT (#815)

* Rebase to master

* using interrupt_mod

* bug fixes

* fix other backends

* Add changelog

* forgot about rtic-macros

* backend-specific configuration

* core peripherals optional over macro argument

* pre_init_preprocessing binding

* CI for RISC-V (WIP)

* separation of concerns

* add targets for RISC-V examples

* remove qemu feature

* prepare examples folder

* move examples all together

* move ci out of examples

* minor changes

* add cortex-m

* new xtask: proof of concept

* fix build.yml

* feature typo

* clean rtic examples

* reproduce weird issue

* remove unsafe code in user app

* update dependencies

* allow builds on riscv32imc

* let's fix QEMU

* Update .github/workflows/build.yml

Co-authored-by: Henrik Tjäder <henrik@tjaders.com>

* New build.rs

* removing test features

* adapt ui test to new version of clippy

* add more examples to RISC-V backend

* proper configuration of heapless for riscv32imc

* opt-out examples for riscv32imc

* point to new version of riscv-slic

* adapt new macro bindings

* adapt examples and CI to stable

* fix cortex-m CI

* Review

---------

Co-authored-by: Henrik Tjäder <henrik@tjaders.com>

1 files changed, 14 insertions, 2 deletions

diff --git a/rtic-macros/src/codegen/main.rs b/rtic-macros/src/codegen/main.rs
index 5612796..80f2cf6 100644
--- a/rtic-macros/src/codegen/main.rs
+++ b/rtic-macros/src/codegen/main.rs
@@ -1,4 +1,3 @@
-use super::{assertions, post_init, pre_init};
 use crate::{
     analyze::Analysis,
     codegen::{bindings, util},
@@ -7,8 +6,12 @@ use crate::{
 use proc_macro2::TokenStream as TokenStream2;
 use quote::quote;
 
+use super::{assertions, extra_mods, post_init, pre_init};
+
 /// Generates code for `fn main`
 pub fn codegen(app: &App, analysis: &Analysis) -> TokenStream2 {
+    let extra_mods_stmts = extra_mods::codegen(app, analysis);
+
     let assertion_stmts = assertions::codegen(app, analysis);
 
     let pre_init_stmts = pre_init::codegen(app, analysis);
@@ -40,9 +43,18 @@ pub fn codegen(app: &App, analysis: &Analysis) -> TokenStream2 {
 
     let main = util::suffixed("main");
     let init_name = &app.init.name;
+
+    let init_args = if app.args.core {
+        quote!(core.into(), executors_size)
+    } else {
+        quote!(executors_size)
+    };
+
     let msp_check = bindings::check_stack_overflow_before_init(app, analysis);
 
     quote!(
+        #(#extra_mods_stmts)*
+
         #[doc(hidden)]
         #[no_mangle]
         unsafe extern "C" fn #main() -> ! {
@@ -63,7 +75,7 @@ pub fn codegen(app: &App, analysis: &Analysis) -> TokenStream2 {
 
             // Wrap late_init_stmts in a function to ensure that stack space is reclaimed.
             __rtic_init_resources(||{
-                let (shared_resources, local_resources) = #init_name(#init_name::Context::new(core.into(), executors_size));
+                let (shared_resources, local_resources) = #init_name(#init_name::Context::new(#init_args));
 
                 #(#post_init_stmts)*
             });