Get started on a descriptor for the atmega32u4 processor

avr-atmega32u4.json

@@ -0,0 +1,31 @@
+{
+  "arch": "avr",
+  "cpu": "atmega32u4",
+  "data-layout": "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8",
+  "env": "",
+  "executables": true,
+  "linker": "avr-gcc",
+  "linker-flavor": "gcc",
+  "linker-is-gnu": true,
+  "llvm-target": "avr-unknown-unknown",
+  "os": "unknown",
+  "position-independent-executables": false,
+  "exe-suffix": ".elf",
+  "eh-frame-header": false,
+  "pre-link-args": {
+    "gcc": [
+      "-Os",
+      "-mmcu=atmega32u4"
+    ]
+  },
+  "late-link-args": {
+    "gcc": [
+      "-lc",
+      "-lgcc"
+    ]
+  },
+  "target-c-int-width": "16",
+  "target-endian": "little",
+  "target-pointer-width": "16",
+  "vendor": "unknown"
+}

src/cores/mod.rs

@@ -1,61 +1,93 @@
 //! The primary module containing microcontroller-specific core definitions
 
 /// The ATmega88.
-#[cfg(any(avr_mcu_atmega88, feature = "all-mcus"))] pub mod atmega88;
+#[cfg(any(avr_mcu_atmega88, feature = "all-mcus"))]
-#[cfg(avr_mcu_atmega88)] pub use self::atmega88 as current;
+pub mod atmega88;
+#[cfg(avr_mcu_atmega88)]
+pub use self::atmega88 as current;
 
 /// The ATmega48A.
-#[cfg(any(avr_mcu_atmega48a, feature = "all-mcus"))] pub mod atmega48a;
+#[cfg(any(avr_mcu_atmega48a, feature = "all-mcus"))]
-#[cfg(avr_mcu_atmega48a)] pub use self::atmega48a as current;
+pub mod atmega48a;
+#[cfg(avr_mcu_atmega48a)]
+pub use self::atmega48a as current;
 
 /// The ATmega168A.
-#[cfg(any(avr_mcu_atmega168a, feature = "all-mcus"))] pub mod atmega168a;
+#[cfg(any(avr_mcu_atmega168a, feature = "all-mcus"))]
-#[cfg(avr_mcu_atmega168a)] pub use self::atmega168a as current;
+pub mod atmega168a;
+#[cfg(avr_mcu_atmega168a)]
+pub use self::atmega168a as current;
 
 /// The ATmega88P.
-#[cfg(any(avr_mcu_atmega88p, feature = "all-mcus"))] pub mod atmega88p;
+#[cfg(any(avr_mcu_atmega88p, feature = "all-mcus"))]
-#[cfg(avr_mcu_atmega88p)] pub use self::atmega88p as current;
+pub mod atmega88p;
+#[cfg(avr_mcu_atmega88p)]
+pub use self::atmega88p as current;
 
 /// The ATmega168P.
-#[cfg(any(avr_mcu_atmega168p, feature = "all-mcus"))] pub mod atmega168p;
+#[cfg(any(avr_mcu_atmega168p, feature = "all-mcus"))]
-#[cfg(avr_mcu_atmega168p)] pub use self::atmega168p as current;
+pub mod atmega168p;
+#[cfg(avr_mcu_atmega168p)]
+pub use self::atmega168p as current;
 
 /// The ATmega88PA.
-#[cfg(any(avr_mcu_atmega88pa, feature = "all-mcus"))] pub mod atmega88pa;
+#[cfg(any(avr_mcu_atmega88pa, feature = "all-mcus"))]
-#[cfg(avr_mcu_atmega88pa)] pub use self::atmega88pa as current;
+pub mod atmega88pa;
+#[cfg(avr_mcu_atmega88pa)]
+pub use self::atmega88pa as current;
 
 /// The ATmega168.
-#[cfg(any(avr_mcu_atmega168, feature = "all-mcus"))] pub mod atmega168;
+#[cfg(any(avr_mcu_atmega168, feature = "all-mcus"))]
-#[cfg(avr_mcu_atmega168)] pub use self::atmega168 as current;
+pub mod atmega168;
+#[cfg(avr_mcu_atmega168)]
+pub use self::atmega168 as current;
 
 /// The ATmega328P.
-#[cfg(any(avr_mcu_atmega328p, feature = "all-mcus"))] pub mod atmega328p;
+#[cfg(any(avr_mcu_atmega328p, feature = "all-mcus"))]
-#[cfg(avr_mcu_atmega328p)] pub use self::atmega328p as current;
+pub mod atmega328p;
+#[cfg(avr_mcu_atmega328p)]
+pub use self::atmega328p as current;
 
 /// The ATmega48PA.
-#[cfg(any(avr_mcu_atmega48pa, feature = "all-mcus"))] pub mod atmega48pa;
+#[cfg(any(avr_mcu_atmega48pa, feature = "all-mcus"))]
-#[cfg(avr_mcu_atmega48pa)] pub use self::atmega48pa as current;
+pub mod atmega48pa;
+#[cfg(avr_mcu_atmega48pa)]
+pub use self::atmega48pa as current;
 
 /// The ATmega168PA.
-#[cfg(any(avr_mcu_atmega168pa, feature = "all-mcus"))] pub mod atmega168pa;
+#[cfg(any(avr_mcu_atmega168pa, feature = "all-mcus"))]
-#[cfg(avr_mcu_atmega168pa)] pub use self::atmega168pa as current;
+pub mod atmega168pa;
+#[cfg(avr_mcu_atmega168pa)]
+pub use self::atmega168pa as current;
 
 /// The ATmega48P.
-#[cfg(any(avr_mcu_atmega48p, feature = "all-mcus"))] pub mod atmega48p;
+#[cfg(any(avr_mcu_atmega48p, feature = "all-mcus"))]
-#[cfg(avr_mcu_atmega48p)] pub use self::atmega48p as current;
+pub mod atmega48p;
+#[cfg(avr_mcu_atmega48p)]
+pub use self::atmega48p as current;
 
 /// The ATmega328.
 ///
 /// This device is chosen as the default when the crate is targeting non-AVR devices.
-#[cfg(any(avr_mcu_atmega328, feature = "all-mcus", not(target_arch = "avr")))] pub mod atmega328;
+#[cfg(any(avr_mcu_atmega328, feature = "all-mcus", not(target_arch = "avr")))]
-#[cfg(any(avr_mcu_atmega328, not(target_arch = "avr")))] pub use self::atmega328 as current;
+pub mod atmega328;
+#[cfg(any(avr_mcu_atmega328, not(target_arch = "avr")))]
+pub use self::atmega328 as current;
 
 /// The ATmega88A.
-#[cfg(any(avr_mcu_atmega88a, feature = "all-mcus"))] pub mod atmega88a;
+#[cfg(any(avr_mcu_atmega88a, feature = "all-mcus"))]
-#[cfg(avr_mcu_atmega88a)] pub use self::atmega88a as current;
+pub mod atmega88a;
+#[cfg(avr_mcu_atmega88a)]
+pub use self::atmega88a as current;
 
 /// The ATmega48.
-#[cfg(any(avr_mcu_atmega48, feature = "all-mcus"))] pub mod atmega48;
+#[cfg(any(avr_mcu_atmega48, feature = "all-mcus"))]
-#[cfg(avr_mcu_atmega48)] pub use self::atmega48 as current;
+pub mod atmega48;
-
+#[cfg(avr_mcu_atmega48)]
+pub use self::atmega48 as current;
 
+/// The ATmega48.
+#[cfg(any(avr_mcu_atmega32u4, feature = "all-mcus"))]
+pub mod atmega32u4;
+#[cfg(avr_mcu_atmega32u4)]
+pub use self::atmega32u4 as current;