Tracking issue for `-Z strip=val` option

[petrochenkov]

Option -Z strip=val controls stripping of debuginfo and similar auxiliary data from binaries
during linking.

Supported values for this option are:

• none - debuginfo and symbols (if they exist) are copied to the produced binary or separate files
  depending on the target (e.g. .pdb files in case of MSVC).
• debuginfo - debuginfo sections and debuginfo symbols from the symbol table section
  are stripped at link time and are not copied to the produced binary or separate files.
• symbols - same as debuginfo, but the rest of the symbol table section is stripped as well
  if the linker supports it.

---

History:

• The option was introduced in add codegen option strip #71825.
• Documentation is added in rustc-book: Document -Z strip=val option #72111.

[ccope]

Is there a way to make the compiler emit separate debug symbol files (besides the default on Windows)?

[ehuss]

@ccope I think split debug support on Linux is tracked in #34651.

[ehuss]

This flag doesn't seem to work with the Darwin linker (ld64). MacOS is defined to use the gcc linker flavor, but although it uses clang, the underlying ld64 doesn't support gcc options.

Is there an intent to support that?

[petrochenkov]

src\librustc_codegen_ssa\back\linker.rs has a bunch of special cases for the MacOS linker, but it's still considered a GccLinker linker flavor.
Perhaps it needs one more such case for symbol stripping.

That's pretty much all I know about MacOS linker and MacOS in general, so no plans to fix it from me.