mikros/rust
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Create _imp__ symbols also when doing ThinLTO

Browse Source
This commit is contained in:
John Kåre Alsaker 2024-08-14 08:40:30 +02:00
parent 1f9a018fa3
commit b7a490ab33
1 changed files with 7 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
compiler/rustc_codegen_ssa/src/back/write.rs
View File

@ -2165,8 +2165,14 @@ fn msvc_imps_needed(tcx: TyCtxt<'_>) -> bool {
&& tcx.sess.opts.cg.prefer_dynamic)
);
// We need to generate _imp__ symbol if we are generating an rlib or we include one
// indirectly from ThinLTO. In theory these are not needed as ThinLTO could resolve
// these, but it currently does not do so.
let can_have_static_objects =
tcx.sess.lto() == Lto::Thin || tcx.crate_types().iter().any(|ct| *ct == CrateType::Rlib);
tcx.sess.target.is_like_windows &&
tcx.crate_types().iter().any(|ct| *ct == CrateType::Rlib) &&
can_have_static_objects &&
// ThinLTO can't handle this workaround in all cases, so we don't
// emit the `__imp_` symbols. Instead we make them unnecessary by disallowing
// dynamic linking when linker plugin LTO is enabled.