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fix: 🐛 Use inline(always) to optimize code 

This removes additional dummy jumps.
This commit is contained in:
Berkus Decker 2021-12-26 17:16:53 +02:00
parent 162592beaa
commit a95d4e3fb0
3 changed files with 4 additions and 0 deletions
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1
bin/chainboot/src/boot.rs
View File

@ -62,6 +62,7 @@ pub unsafe extern "C" fn _start() -> ! {
/// ///
/// The function is called from the assembly `_start` function, keep it to support "asm" feature. /// The function is called from the assembly `_start` function, keep it to support "asm" feature.
#[no_mangle] #[no_mangle]
#[inline(always)]
pub unsafe fn _start_rust(max_kernel_size: u64) -> ! { pub unsafe fn _start_rust(max_kernel_size: u64) -> ! {
crate::kernel_init(max_kernel_size) crate::kernel_init(max_kernel_size)
} }

2
bin/chainboot/src/main.rs
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@ -25,6 +25,7 @@ mod boot;
/// ///
/// - Only a single core must be active and running this function. /// - Only a single core must be active and running this function.
/// - The init calls in this function must appear in the correct order. /// - The init calls in this function must appear in the correct order.
#[inline(always)]
unsafe fn kernel_init(max_kernel_size: u64) -> ! { unsafe fn kernel_init(max_kernel_size: u64) -> ! {
#[cfg(feature = "jtag")] #[cfg(feature = "jtag")]
machine::arch::jtag::wait_debugger(); machine::arch::jtag::wait_debugger();
@ -66,6 +67,7 @@ fn read_u64() -> u64 {
} }
/// The main function running after the early init. /// The main function running after the early init.
#[inline(always)]
fn kernel_main(max_kernel_size: u64) -> ! { fn kernel_main(max_kernel_size: u64) -> ! {
#[cfg(test)] #[cfg(test)]
test_main(); test_main();

1
machine/src/arch/aarch64/boot.rs
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@ -24,6 +24,7 @@ macro_rules! entry {
/// # Safety /// # Safety
/// Only type-checks! /// Only type-checks!
#[export_name = "main"] #[export_name = "main"]
#[inline(always)]
pub unsafe fn __main() -> ! { pub unsafe fn __main() -> ! {
// type check the given path // type check the given path
let f: fn() -> ! = $path; let f: fn() -> ! = $path;