diff options
Diffstat (limited to 'src/librustc_codegen_ssa/back')
| -rw-r--r-- | src/librustc_codegen_ssa/back/link.rs | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/src/librustc_codegen_ssa/back/link.rs b/src/librustc_codegen_ssa/back/link.rs index d8b38cf3370..a54160cdd71 100644 --- a/src/librustc_codegen_ssa/back/link.rs +++ b/src/librustc_codegen_ssa/back/link.rs @@ -1179,6 +1179,28 @@ fn add_pre_link_args( cmd.args(&sess.opts.debugging_opts.pre_link_args); } +/// Add a link script embedded in the target, if applicable. +fn add_link_script(cmd: &mut dyn Linker, sess: &Session, tmpdir: &Path, crate_type: CrateType) { + match (crate_type, &sess.target.target.options.link_script) { + (CrateType::Cdylib | CrateType::Executable, Some(script)) => { + if !sess.target.target.options.linker_is_gnu { + sess.fatal("can only use link script when linking with GNU-like linker"); + } + + let file_name = ["rustc", &sess.target.target.llvm_target, "linkfile.ld"].join("-"); + + let path = tmpdir.join(file_name); + if let Err(e) = fs::write(&path, script) { + sess.fatal(&format!("failed to write link script to {}: {}", path.display(), e)); + } + + cmd.arg("--script"); + cmd.arg(path); + } + _ => {} + } +} + /// Add arbitrary "user defined" args defined from command line and by `#[link_args]` attributes. /// FIXME: Determine where exactly these args need to be inserted. fn add_user_defined_link_args( @@ -1421,6 +1443,9 @@ fn linker_with_args<'a, B: ArchiveBuilder<'a>>( // NO-OPT-OUT, OBJECT-FILES-MAYBE, CUSTOMIZATION-POINT add_pre_link_args(cmd, sess, flavor, crate_type); + // NO-OPT-OUT + add_link_script(cmd, sess, tmpdir, crate_type); + // NO-OPT-OUT, OBJECT-FILES-NO, AUDIT-ORDER if sess.target.target.options.is_like_fuchsia { let prefix = match sess.opts.debugging_opts.sanitizer { |