1 files changed, 23 insertions, 0 deletions
diff --git a/compiler/rustc_target/src/spec/i686_uwp_windows_gnu.rs b/compiler/rustc_target/src/spec/i686_uwp_windows_gnu.rs
new file mode 100644
index 000000000..d52810d2f
--- /dev/null
+++ b/compiler/rustc_target/src/spec/i686_uwp_windows_gnu.rs
@@ -0,0 +1,23 @@
+use crate::spec::{FramePointer, LinkerFlavor, Target};
+
+pub fn target() -> Target {
+    let mut base = super::windows_uwp_gnu_base::opts();
+    base.cpu = "pentium4".into();
+    base.max_atomic_width = Some(64);
+    base.frame_pointer = FramePointer::Always; // Required for backtraces
+
+    // Mark all dynamic libraries and executables as compatible with the larger 4GiB address
+    // space available to x86 Windows binaries on x86_64.
+    base.add_pre_link_args(LinkerFlavor::Ld, &["-m", "i386pe", "--large-address-aware"]);
+    base.add_pre_link_args(LinkerFlavor::Gcc, &["-Wl,--large-address-aware"]);
+
+    Target {
+        llvm_target: "i686-pc-windows-gnu".into(),
+        pointer_width: 32,
+        data_layout: "e-m:x-p:32:32-p270:32:32-p271:32:32-p272:64:64-\
+            i64:64-f80:32-n8:16:32-a:0:32-S32"
+            .into(),
+        arch: "x86".into(),
+        options: base,
+    }
+}