use core::intrinsics::*;
use core::ops::FnOnce;

#[cfg(not(test))]
#[inline(always)]
/// NOP instruction
pub fn nop() {
  unsafe { asm!("nop" :::: "volatile"); }
}

#[cfg(test)]
/// NOP instruction (mock)
pub fn nop() {
}

#[cfg(not(test))]
#[inline(always)]
/// WFI instruction
pub unsafe fn wfi() {
    asm!("wfi" :::: "volatile");
}

#[cfg(test)]
/// WFI instruction (mock)
pub unsafe fn wfi() {
}

pub unsafe fn atomic<F,R>(f: F) -> R where F: FnOnce() -> R {
    // Set PRIMASK
    asm!("cpsid i" :::: "volatile");

    let res = f();

    // Unset PRIMASK
    asm!("cpsie i" :::: "volatile");
    return res;
}

#[cfg(not(test))]
#[lang="eh_personality"]
pub extern fn eh_personality() {}


use core::intrinsics::*;
use core::ops::FnOnce;

#[cfg(not(test))]
#[inline(always)]
/// NOP instruction
pub fn nop() {
  unsafe { asm!("nop" :::: "volatile"); }
}

#[cfg(test)]
/// NOP instruction (mock)
pub fn nop() {
}

#[cfg(not(test))]
#[inline(always)]
/// WFI instruction
pub unsafe fn wfi() {
    asm!("wfi" :::: "volatile");
}

#[cfg(test)]
/// WFI instruction (mock)
pub unsafe fn wfi() {
}

pub unsafe fn atomic<F,R>(f: F) -> R where F: FnOnce() -> R {
    // Set PRIMASK
    asm!("cpsid i" :::: "volatile");

    let res = f();

    // Unset PRIMASK
    asm!("cpsie i" :::: "volatile");
    return res;
}

#[cfg(not(test))]
#[lang="eh_personality"]
pub extern fn eh_personality() {}

#[doc(hidden)]
#[no_mangle]
pub unsafe extern fn __aeabi_unwind_cpp_pr0() {
  abort();
}

#[doc(hidden)]
#[no_mangle]
pub unsafe extern fn __aeabi_unwind_cpp_pr1() {
  abort();
}


--- 
+++ 
@@ -40,15 +40,3 @@
 #[lang="eh_personality"]
 pub extern fn eh_personality() {}
 
-#[doc(hidden)]
-#[no_mangle]
-pub unsafe extern fn __aeabi_unwind_cpp_pr0() {
-  abort();
-}
-
-#[doc(hidden)]
-#[no_mangle]
-pub unsafe extern fn __aeabi_unwind_cpp_pr1() {
-  abort();
-}
-
Remove stale definitions for __aeabi_unwind_cpp_*
