2 files changed, 8 insertions, 2 deletions
diff --git a/compiler/rustc_codegen_llvm/src/back/archive.rs b/compiler/rustc_codegen_llvm/src/back/archive.rs
index e6ab0e74b7d..01d4cda18d4 100644
--- a/compiler/rustc_codegen_llvm/src/back/archive.rs
+++ b/compiler/rustc_codegen_llvm/src/back/archive.rs
@@ -12,7 +12,7 @@ use std::str;
 use object::read::macho::FatArch;
 
 use crate::common;
-use crate::errors::{ErrorCreatingImportLibrary, ArchiveBuildFailure};
+use crate::errors::{ArchiveBuildFailure, ErrorCreatingImportLibrary, ErrorWritingDEFFile};
 use crate::llvm::archive_ro::{ArchiveRO, Child};
 use crate::llvm::{self, ArchiveKind, LLVMMachineType, LLVMRustCOFFShortExport};
 use rustc_codegen_ssa::back::archive::{ArchiveBuilder, ArchiveBuilderBuilder};
@@ -218,7 +218,7 @@ impl ArchiveBuilderBuilder for LlvmArchiveBuilderBuilder {
             match std::fs::write(&def_file_path, def_file_content) {
                 Ok(_) => {}
                 Err(e) => {
-                    sess.fatal(&format!("Error writing .DEF file: {}", e));
+                    sess.emit_fatal(ErrorWritingDEFFile { error: e });
                 }
             };
 
diff --git a/compiler/rustc_codegen_llvm/src/errors.rs b/compiler/rustc_codegen_llvm/src/errors.rs
index 12ea4166cf4..b7962fd0bae 100644
--- a/compiler/rustc_codegen_llvm/src/errors.rs
+++ b/compiler/rustc_codegen_llvm/src/errors.rs
@@ -90,3 +90,9 @@ pub(crate) struct SanitizerMemtagRequiresMte;
 pub(crate) struct ArchiveBuildFailure {
     pub error: std::io::Error,
 }
+
+#[derive(SessionDiagnostic)]
+#[diag(codegen_llvm::error_writing_def_file)]
+pub(crate) struct ErrorWritingDEFFile {
+    pub error: std::io::Error,
+}