rust/patches/0025-Remove-usage-of-extern_weak-in-thread_local_dtor.patch

From 7496bb94a2fb2bc34629c9781c3bc3a470becaee Mon Sep 17 00:00:00 2001
From: bjorn3 <bjorn3@users.noreply.github.com>
Date: Fri, 10 Apr 2020 13:47:42 +0200
Subject: [PATCH] Remove usage of extern_weak in thread_local_dtor

---
 library/std/src/sys/unix/thread_local_dtor.rs | 20 --------------------
 1 files changed, 0 insertions(+), 20 deletions(-)

diff --git a/library/std/src/sys/unix/thread_local_dtor.rs b/library/std/src/sys/unix/thread_local_dtor.rs
index 8730b4d..8d6e3d5 100644
--- a/library/std/src/sys/unix/thread_local_dtor.rs
+++ b/library/std/src/sys/unix/thread_local_dtor.rs
@@ -15,28 +15,8 @@
     target_os = "emscripten"
 ))]
 pub unsafe fn register_dtor(t: *mut u8, dtor: unsafe extern "C" fn(*mut u8)) {
-    use crate::mem;
     use crate::sys_common::thread_local_dtor::register_dtor_fallback;
 
-    extern "C" {
-        #[linkage = "extern_weak"]
-        static __dso_handle: *mut u8;
-        #[linkage = "extern_weak"]
-        static __cxa_thread_atexit_impl: *const libc::c_void;
-    }
-    if !__cxa_thread_atexit_impl.is_null() {
-        type F = unsafe extern "C" fn(
-            dtor: unsafe extern "C" fn(*mut u8),
-            arg: *mut u8,
-            dso_handle: *mut u8,
-        ) -> libc::c_int;
-        mem::transmute::<*const libc::c_void, F>(__cxa_thread_atexit_impl)(
-            dtor,
-            t,
-            &__dso_handle as *const _ as *mut _,
-        );
-        return;
-    }
     register_dtor_fallback(t, dtor);
 }
 
-- 
2.20.1