diff --git a/src/librustc_codegen_llvm/debuginfo/metadata.rs b/src/librustc_codegen_llvm/debuginfo/metadata.rs index 9bdce37b8ba..13590faa123 100644 --- a/src/librustc_codegen_llvm/debuginfo/metadata.rs +++ b/src/librustc_codegen_llvm/debuginfo/metadata.rs @@ -31,7 +31,7 @@ use rustc::ty::{self, AdtKind, ParamEnv, Ty, TyCtxt}; use rustc::ty::layout::{self, Align, Integer, IntegerExt, LayoutOf, PrimitiveExt, Size, TyLayout, VariantIdx}; use rustc::ty::subst::UnpackedKind; -use rustc::session::config; +use rustc::session::config::{self, DebugInfo}; use rustc::util::nodemap::FxHashMap; use rustc_fs_util::path_to_c_string; use rustc_data_structures::small_c_str::SmallCStr; @@ -925,7 +925,26 @@ pub fn compile_unit_metadata(tcx: TyCtxt<'_, '_, '_>, let producer = CString::new(producer).unwrap(); let flags = "\0"; let split_name = "\0"; - let kind = DebugEmissionKind::from_generic(tcx.sess.opts.debuginfo); + + // FIXME(#60020): + // + // This should actually be + // + // ``` + // let kind = DebugEmissionKind::from_generic(tcx.sess.opts.debuginfo); + // ``` + // + // that is, we should set LLVM's emission kind to `LineTablesOnly` if + // we are compiling with "limited" debuginfo. However, some of the + // existing tools relied on slightly more debuginfo being generated than + // would be the case with `LineTablesOnly`, and we did not want to break + // these tools in a "drive-by fix", without a good idea or plan about + // what limited debuginfo should exactly look like. So for now we keep + // the emission kind as `FullDebug`. + // + // See https://github.com/rust-lang/rust/issues/60020 for details. + let kind = DebugEmissionKind::FullDebug; + assert!(tcx.sess.opts.debuginfo != DebugInfo::None); unsafe { let file_metadata = llvm::LLVMRustDIBuilderCreateFile(