Add RanlibFailure

compiler/rustc_codegen_gcc/src/archive.rs

@@ -1,6 +1,8 @@
 use std::fs::File;
 use std::path::{Path, PathBuf};
 
+use crate::errors::RanlibFailure;
+
 use rustc_codegen_ssa::back::archive::{ArchiveBuilder, ArchiveBuilderBuilder};
 use rustc_session::Session;
 
@@ -181,7 +183,7 @@ impl<'a> ArchiveBuilder<'a> for ArArchiveBuilder<'a> {
             std::process::Command::new("ranlib").arg(output).status().expect("Couldn't run ranlib");
 
         if !status.success() {
-            self.config.sess.fatal(&format!("Ranlib exited with code {:?}", status.code()));
+            self.config.sess.emit_fatal(RanlibFailure { exit_code: status.code() });
         }
 
         any_members

compiler/rustc_codegen_gcc/src/errors.rs

@@ -0,0 +1,7 @@
+use rustc_macros::SessionDiagnostic;
+
+#[derive(SessionDiagnostic)]
+#[diag(codegen_gcc::ranlib_failure)]
+pub(crate) struct RanlibFailure {
+    pub exit_code: Option<i32>
+}

compiler/rustc_codegen_gcc/src/lib.rs

@@ -25,6 +25,7 @@ extern crate rustc_codegen_ssa;
 extern crate rustc_data_structures;
 extern crate rustc_errors;
 extern crate rustc_hir;
+extern crate rustc_macros;
 extern crate rustc_metadata;
 extern crate rustc_middle;
 extern crate rustc_session;
@@ -50,6 +51,7 @@ mod context;
 mod coverageinfo;
 mod debuginfo;
 mod declare;
+mod errors;
 mod int;
 mod intrinsic;
 mod mono_item;

compiler/rustc_error_messages/locales/en-US/codegen_gcc.ftl

@@ -0,0 +1,2 @@
+codegen_gcc_ranlib_failure =
+    Ranlib exited with code {$exit_code}

compiler/rustc_error_messages/src/lib.rs

@@ -41,6 +41,7 @@ fluent_messages! {
     borrowck => "../locales/en-US/borrowck.ftl",
     builtin_macros => "../locales/en-US/builtin_macros.ftl",
     const_eval => "../locales/en-US/const_eval.ftl",
+    codegen_gcc => "../locales/en-US/codegen_gcc.ftl",
     driver => "../locales/en-US/driver.ftl",
     expand => "../locales/en-US/expand.ftl",
     session => "../locales/en-US/session.ftl",

compiler/rustc_errors/src/diagnostic.rs

@@ -114,6 +114,15 @@ impl IntoDiagnosticArg for char {
     }
 }
 
+impl<T: IntoDiagnosticArg> IntoDiagnosticArg for Option<T> {
+    fn into_diagnostic_arg(self) -> DiagnosticArgValue<'static> {
+        match self {
+            Some(t) => t.into_diagnostic_arg(),
+            None => DiagnosticArgValue::Str(Cow::Borrowed("None")),
+        }
+    }
+}
+
 impl IntoDiagnosticArg for Symbol {
     fn into_diagnostic_arg(self) -> DiagnosticArgValue<'static> {
         self.to_ident_string().into_diagnostic_arg()