diff --git a/src/librustc_codegen_utils/symbol_export.rs b/src/librustc_codegen_utils/symbol_export.rs index 2d650f7f18d6..6c40296b2ef3 100644 --- a/src/librustc_codegen_utils/symbol_export.rs +++ b/src/librustc_codegen_utils/symbol_export.rs @@ -388,6 +388,16 @@ fn symbol_export_level(tcx: TyCtxt, sym_def_id: DefId) -> SymbolExportLevel { codegen_fn_attrs.flags.contains(CodegenFnAttrFlags::RUSTC_STD_INTERNAL_SYMBOL); if is_extern && !std_internal { + // Emscripten cannot export statics, so reduce their export level here + if tcx.sess.target.target.options.is_like_emscripten { + if let Some(Node::Item(&hir::Item { + node: hir::ItemKind::Static(..), + .. + })) = tcx.hir.get_if_local(sym_def_id) { + return SymbolExportLevel::Rust; + } + } + SymbolExportLevel::C } else { SymbolExportLevel::Rust