tmp: enable rust-lld by default

Author: lqd

compiler/rustc_target/src/spec/mod.rs

@@ -619,6 +619,12 @@ impl LinkSelfContained {
             _ => "crt-objects-fallback",
         }
     }
+
+    /// Creates a `LinkSelfContained` enabling the self-contained linker for target specs (the
+    /// equivalent of `-Clink-self-contained=+linker` on the CLI).
+    pub(crate) fn with_linker() -> LinkSelfContained {
+        LinkSelfContained::WithComponents(LinkSelfContainedComponents::LINKER)
+    }
 }
 
 impl From<LinkSelfContainedDefault> for LinkSelfContained {

compiler/rustc_target/src/spec/x86_64_unknown_linux_gnu.rs

@@ -1,10 +1,13 @@
+use crate::spec::LinkSelfContained;
 use crate::spec::{Cc, LinkerFlavor, Lld, SanitizerSet, StackProbeType, Target};
 
 pub fn target() -> Target {
     let mut base = super::linux_gnu_base::opts();
     base.cpu = "x86-64".into();
     base.plt_by_default = false;
     base.max_atomic_width = Some(64);
+    base.linker_flavor = LinkerFlavor::Gnu(Cc::Yes, Lld::Yes);
+    base.link_self_contained = LinkSelfContained::with_linker();
     base.add_pre_link_args(LinkerFlavor::Gnu(Cc::Yes, Lld::No), &["-m64"]);
     base.stack_probes = StackProbeType::X86;
     base.static_position_independent_executables = true;