Merge #694

694: RTIC 2 r=AfoHT a=korken89



Co-authored-by: Emil Fresk <emil.fresk@gmail.com>
Co-authored-by: Per Lindgren <per.lindgren@ltu.se>

1 files changed, 24 insertions, 0 deletions

diff --git a/rtic-macros/src/codegen/pre_init.rs b/rtic-macros/src/codegen/pre_init.rs
new file mode 100644
index 00000000..a2d0e8c1
--- /dev/null
+++ b/rtic-macros/src/codegen/pre_init.rs
@@ -0,0 +1,24 @@
+use super::bindings::{pre_init_checks, pre_init_enable_interrupts};
+use crate::analyze::Analysis;
+use crate::syntax::ast::App;
+use proc_macro2::TokenStream as TokenStream2;
+use quote::quote;
+
+/// Generates code that runs before `#[init]`
+pub fn codegen(app: &App, analysis: &Analysis) -> Vec<TokenStream2> {
+    let mut stmts = vec![];
+
+    // Disable interrupts -- `init` must run with interrupts disabled
+    stmts.push(quote!(rtic::export::interrupt::disable();));
+
+    stmts.push(quote!(
+        // To set the variable in cortex_m so the peripherals cannot be taken multiple times
+        let mut core: rtic::export::Peripherals = rtic::export::Peripherals::steal().into();
+    ));
+
+    stmts.append(&mut pre_init_checks(app, analysis));
+
+    stmts.append(&mut pre_init_enable_interrupts(app, analysis));
+
+    stmts
+}