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Fix aarch64 switch_to function

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This commit is contained in:
Jeremy Soller
2021-05-04 08:07:44 -06:00
parent b9a89f2160
commit 3dc08c878f
1 changed files with 3 additions and 2 deletions
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5
src/context/arch/aarch64.rs
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@@ -225,7 +225,7 @@ impl Context {
#[cold]
#[inline(never)]
#[naked]
pub unsafe fn switch_to(prev: &mut Context, next: &mut Context) {
pub unsafe extern "C" fn switch_to(prev: &mut Context, next: &mut Context) {
let mut float_regs = &mut *(prev.fx_address as *mut FloatRegisters);
asm!(
"stp q0, q1, [{0}, #16 * 0]",
@@ -376,7 +376,8 @@ pub unsafe fn switch_to(prev: &mut Context, next: &mut Context) {
llvm_asm!("mov $0, sp" : "=r"(prev.sp) : : "memory" : "volatile");
llvm_asm!("mov sp, $0" : : "r"(next.sp) : "memory" : "volatile");
CONTEXT_SWITCH_LOCK.store(false, Ordering::SeqCst);
// Jump to switch hook
asm!("b {switch_hook}", switch_hook = sym crate::context::switch_finish_hook);
}
#[allow(dead_code)]