Add panic=immediate-abort

compiler/rustc_codegen_gcc/src/base.rs

@@ -15,9 +15,9 @@ use rustc_middle::mir::mono::Visibility;
 use rustc_middle::ty::TyCtxt;
 use rustc_session::config::DebugInfo;
 use rustc_span::Symbol;
+use rustc_target::spec::RelocModel;
 #[cfg(feature = "master")]
 use rustc_target::spec::SymbolVisibility;
-use rustc_target::spec::{PanicStrategy, RelocModel};
 
 use crate::builder::Builder;
 use crate::context::CodegenCx;
@@ -101,7 +101,7 @@ pub fn compile_codegen_unit(
         // Instantiate monomorphizations without filling out definitions yet...
         let context = new_context(tcx);
 
-        if tcx.sess.panic_strategy() == PanicStrategy::Unwind {
+        if tcx.sess.panic_strategy().unwinds() {
             context.add_command_line_option("-fexceptions");
             context.add_driver_option("-fexceptions");
         }