2 files changed, 7 insertions, 0 deletions
diff --git a/compiler/rustc_lint/src/builtin.rs b/compiler/rustc_lint/src/builtin.rs
index faa35f51cd4..f00177fde7c 100644
--- a/compiler/rustc_lint/src/builtin.rs
+++ b/compiler/rustc_lint/src/builtin.rs
@@ -393,6 +393,10 @@ impl EarlyLintPass for UnsafeCode {
                 }
             }
 
+            ast::ItemKind::GlobalAsm(..) => {
+                self.report_unsafe(cx, it.span, BuiltinUnsafe::GlobalAsm);
+            }
+
             _ => {}
         }
     }
diff --git a/compiler/rustc_lint/src/lints.rs b/compiler/rustc_lint/src/lints.rs
index c204c67fc1f..7015d813390 100644
--- a/compiler/rustc_lint/src/lints.rs
+++ b/compiler/rustc_lint/src/lints.rs
@@ -114,6 +114,9 @@ pub enum BuiltinUnsafe {
     DeclUnsafeMethod,
     #[diag(lint_builtin_impl_unsafe_method)]
     ImplUnsafeMethod,
+    #[diag(lint_builtin_global_asm)]
+    #[note(lint_builtin_global_macro_unsafety)]
+    GlobalAsm,
 }
 
 #[derive(LintDiagnostic)]