From 9281958c6ac7dd55f4fe143f7268694eeade5abd Mon Sep 17 00:00:00 2001
From: Berrysoft <Strawberry_Str@hotmail.com>
Date: Thu, 29 May 2025 13:55:50 +0800
Subject: [PATCH] Add tls_model for cygwin and enable has_thread_local

---
 compiler/rustc_target/src/spec/base/cygwin.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/compiler/rustc_target/src/spec/base/cygwin.rs b/compiler/rustc_target/src/spec/base/cygwin.rs
index 819d1d68a71d9..d6ae0a905bf60 100644
--- a/compiler/rustc_target/src/spec/base/cygwin.rs
+++ b/compiler/rustc_target/src/spec/base/cygwin.rs
@@ -1,7 +1,8 @@
 use std::borrow::Cow;
 
 use crate::spec::{
-    BinaryFormat, Cc, DebuginfoKind, LinkerFlavor, Lld, SplitDebuginfo, TargetOptions, cvs,
+    BinaryFormat, Cc, DebuginfoKind, LinkerFlavor, Lld, SplitDebuginfo, TargetOptions, TlsModel,
+    cvs,
 };
 
 pub(crate) fn opts() -> TargetOptions {
@@ -44,6 +45,8 @@ pub(crate) fn opts() -> TargetOptions {
         eh_frame_header: false,
         debuginfo_kind: DebuginfoKind::Dwarf,
         supported_split_debuginfo: Cow::Borrowed(&[SplitDebuginfo::Off]),
+        tls_model: TlsModel::Emulated,
+        has_thread_local: true,
         ..Default::default()
     }
 }