use std::fmt::Write;
use std::ptr;
use std::path::{Path, PathBuf};
-use syntax::ast;
+use syntax::{ast, attr};
use syntax::symbol::{Interner, InternedString, Symbol};
use syntax_pos::{self, Span, FileName};
}
let tcx = cx.tcx();
-
let node_def_id = tcx.hir.local_def_id(node_id);
+ let no_mangle = attr::contains_name(&tcx.get_attrs(node_def_id), "no_mangle");
+ // We may want to remove the namespace scope if we're in an extern block, see:
+ // https://github.com/rust-lang/rust/pull/46457#issuecomment-351750952
let var_scope = get_namespace_for_item(cx, node_def_id);
let span = cx.tcx().def_span(node_def_id);
let variable_type = common::def_ty(cx.tcx(), node_def_id, Substs::empty());
let type_metadata = type_metadata(cx, variable_type, span);
let var_name = tcx.item_name(node_def_id).to_string();
- let linkage_name = mangled_name_of_item(cx, node_def_id, "");
-
let var_name = CString::new(var_name).unwrap();
- let linkage_name = CString::new(linkage_name).unwrap();
+ let linkage_name = if no_mangle {
+ None
+ } else {
+ let linkage_name = mangled_name_of_item(cx, node_def_id, "");
+ Some(CString::new(linkage_name).unwrap())
+ };
let global_align = cx.align_of(variable_type);
llvm::LLVMRustDIBuilderCreateStaticVariable(DIB(cx),
var_scope,
var_name.as_ptr(),
- linkage_name.as_ptr(),
+ // If null, linkage_name field is omitted,
+ // which is what we want for no_mangle statics
+ linkage_name.as_ref()
+ .map_or(ptr::null(), |name| name.as_ptr()),
file_metadata,
line_number,
type_metadata,