From 8a8fa53a5d28fa3e849e26e907480dd28b8f2aa3 Mon Sep 17 00:00:00 2001
From: Christian Poveda <christianpoveda@protonmail.com>
Date: Fri, 18 Oct 2019 14:44:48 -0500
Subject: [PATCH] Transform the last error place to an immediate instead

---
 src/shims/foreign_items.rs | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/shims/foreign_items.rs b/src/shims/foreign_items.rs
index 51be7ea5bcd3..1933aee1151d 100644
--- a/src/shims/foreign_items.rs
+++ b/src/shims/foreign_items.rs
@@ -415,8 +415,7 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriEvalContextExt<'mir, 'tcx
 
             "__errno_location" | "__error" => {
                 let errno_place = this.machine.last_error.unwrap();
-                let errno_scalar: Scalar<Tag> = this.check_mplace_access(errno_place.into(), Some(Size::from_bits(32)))?.unwrap().into();
-                this.write_scalar(errno_scalar, dest)?;
+                this.write_scalar(errno_place.to_ref().to_scalar()?, dest)?;
             }
 
             "getenv" => {