bjoernager/rust
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Rollup merge of #91566 - cbeuw:remap-dwo-name, r=davidtwco

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Apply path remapping to DW_AT_GNU_dwo_name when producing split DWARF

`--remap-path-prefix` doesn't apply to paths to `.o` (in case of packed) or `.dwo` (in case of unpacked) files in `DW_AT_GNU_dwo_name`. GCC also has this bug https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91888
This commit is contained in:
Matthias Krüger 2021-12-18 14:49:38 +01:00 • committed by GitHub
commit 1c42199c8f
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4 changed files with 31 additions and 10 deletions
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5
compiler/rustc_codegen_llvm/src/back/write.rs
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@ -205,8 +205,11 @@ pub fn target_machine_factory(
let use_init_array =
!sess.opts.debugging_opts.use_ctors_section.unwrap_or(sess.target.use_ctors_section);
let path_mapping = sess.source_map().path_mapping().clone();
Arc::new(move |config: TargetMachineFactoryConfig| {
let split_dwarf_file = config.split_dwarf_file.unwrap_or_default();
let split_dwarf_file =
path_mapping.map_prefix(config.split_dwarf_file.unwrap_or_default()).0;
let split_dwarf_file = CString::new(split_dwarf_file.to_str().unwrap()).unwrap();
let tm = unsafe {