Merge #88

88: v0.5.2 r=therealprof a=japaric

changes required for a new release

this commit also simplifies the examples by removing the exception handler overrides and adds an
example that overrides the exception handlers.

r? @adamgreig (chosen at random)

Co-authored-by: Jorge Aparicio <jorge@japaric.io>
Co-authored-by: Adam Greig <adam@adamgreig.com>

1 files changed, 35 insertions, 0 deletions

diff --git a/cortex-m-rt/examples/override-exception.rs b/cortex-m-rt/examples/override-exception.rs
new file mode 100644
index 0000000..2f100a2
--- /dev/null
+++ b/cortex-m-rt/examples/override-exception.rs
@@ -0,0 +1,35 @@
+//! How to override the hard fault exception handler and the default exception handler
+
+#![deny(unsafe_code)]
+#![deny(warnings)]
+#![no_main]
+#![no_std]
+
+extern crate cortex_m;
+#[macro_use(entry, exception)]
+extern crate cortex_m_rt as rt;
+extern crate panic_semihosting;
+
+use cortex_m::asm;
+use rt::ExceptionFrame;
+
+// the program entry point
+entry!(main);
+
+fn main() -> ! {
+    loop {}
+}
+
+exception!(*, default_handler);
+
+fn default_handler(_irqn: i16) {
+    asm::bkpt();
+}
+
+exception!(HardFault, hard_fault);
+
+fn hard_fault(_ef: &ExceptionFrame) -> ! {
+    asm::bkpt();
+
+    loop {}
+}