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Always inline disabling interrupts 

It never makes sense to call a function for these two instructions.

Additionally, I use this at system boot time to configure the stack
pointer itself. If this becomes a function call, then _everything_ is
broken!
This commit is contained in:
Jake Goulding 2020-07-25 09:44:54 -04:00 committed by Dylan McKay
parent 74a824ba29
commit fe0720d53e
1 changed files with 3 additions and 2 deletions
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5
src/interrupt.rs
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@ -11,6 +11,7 @@ struct DisableInterrupts(PhantomData<()>);
/// ///
/// Restores interrupts after the closure has completed /// Restores interrupts after the closure has completed
/// execution. /// execution.
#[inline(always)]
pub fn without_interrupts<F, T>(f: F) -> T pub fn without_interrupts<F, T>(f: F) -> T
where F: FnOnce() -> T where F: FnOnce() -> T
{ {
@ -19,7 +20,7 @@ pub fn without_interrupts<F, T>(f: F) -> T
} }
impl DisableInterrupts { impl DisableInterrupts {
#[inline] #[inline(always)]
pub fn new() -> DisableInterrupts { pub fn new() -> DisableInterrupts {
unsafe { llvm_asm!("CLI") } unsafe { llvm_asm!("CLI") }
DisableInterrupts(PhantomData) DisableInterrupts(PhantomData)
@ -27,7 +28,7 @@ impl DisableInterrupts {
} }
impl Drop for DisableInterrupts { impl Drop for DisableInterrupts {
#[inline] #[inline(always)]
fn drop(&mut self) { fn drop(&mut self) {
unsafe { llvm_asm!("SEI") } unsafe { llvm_asm!("SEI") }
} }