From bff186bef3532240249f4b637966a17db2379c96 Mon Sep 17 00:00:00 2001
From: Oliver Scherer <github35764891676564198441@oli-obk.de>
Date: Thu, 7 Nov 2019 20:04:11 +0100
Subject: [PATCH] Emit `_fltused` on `uefi` targets as a short-term workaround
 (#317)

* Emit `_fltused` on `uefi` targets as a short-term workaround

* Remove stray docker container
---
 library/compiler-builtins/src/x86_64.rs | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/library/compiler-builtins/src/x86_64.rs b/library/compiler-builtins/src/x86_64.rs
index 2360ab8a6fa6..6940f8d9d291 100644
--- a/library/compiler-builtins/src/x86_64.rs
+++ b/library/compiler-builtins/src/x86_64.rs
@@ -73,3 +73,10 @@ pub unsafe fn ___chkstk() {
     );
     intrinsics::unreachable();
 }
+
+// HACK(https://github.com/rust-lang/rust/issues/62785): x86_64-unknown-uefi needs special LLVM
+// support unless we emit the _fltused
+#[no_mangle]
+#[used]
+#[cfg(target_os = "uefi")]
+static _fltused: i32 = 0;