Merge #90

90: turn macros into attributes r=adamgreig a=japaric

This is a PoC implementation of RFC #82. Assuming that we are OK with this implementation we should
add some compile fail tests (e.g. using a function with the wrong signature as the entry point)
before landing this.

Look at the diff of the examples to get an overview of the changes.

cc @rust-embedded/cortex-m

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

1 files changed, 2 insertions, 3 deletions

diff --git a/cortex-m-rt/examples/device.rs b/cortex-m-rt/examples/device.rs
index 4395db2..950a564 100644
--- a/cortex-m-rt/examples/device.rs
+++ b/cortex-m-rt/examples/device.rs
@@ -5,13 +5,12 @@
 #![no_main]
 #![no_std]
 
-#[macro_use(entry)]
 extern crate cortex_m_rt as rt;
 extern crate panic_semihosting;
 
-// the program entry point
-entry!(main);
+use rt::entry;
 
+#[entry]
 fn main() -> ! {
     loop {}
 }