Enable thread_local_dtor on horizon OS

ian-h-chamberlain · AzureMarker · commit bc63d5a26a65 · 2022-06-13T20:45:24.000-07:00
Always use fallback thread_local destructor, since __cxa_thread_atexit_impl is never defined on the target. See AzureMarker#2
diff --git a/library/std/src/sys/unix/thread_local_dtor.rs b/library/std/src/sys/unix/thread_local_dtor.rs
@@ -93,7 +93,7 @@ pub unsafe fn register_dtor(t: *mut u8, dtor: unsafe extern "C" fn(*mut u8)) {
     }
 }
 
-#[cfg(target_os = "vxworks")]
+#[cfg(any(target_os = "vxworks", target_os = "horizon"))]
 pub unsafe fn register_dtor(t: *mut u8, dtor: unsafe extern "C" fn(*mut u8)) {
     use crate::sys_common::thread_local_dtor::register_dtor_fallback;
     register_dtor_fallback(t, dtor);

Original file line number	Diff line number	Diff line change
`@@ -93,7 +93,7 @@ pub unsafe fn register_dtor(t: mut u8, dtor: unsafe extern "C" fn(mut u8)) {`
`93`	`93`	`}`
`94`	`94`	`}`
`95`	`95`
`96`		`-#[cfg(target_os = "vxworks")]`
	`96`	`+#[cfg(any(target_os = "vxworks", target_os = "horizon"))]`
`97`	`97`	`pub unsafe fn register_dtor(t: mut u8, dtor: unsafe extern "C" fn(mut u8)) {`
`98`	`98`	`use crate::sys_common::thread_local_dtor::register_dtor_fallback;`
`99`	`99`	`register_dtor_fallback(t, dtor);`