Rollup of 9 pull requests#89656

Closed

Manishearth wants to merge 30 commits intorust-lang:masterfrom

Manishearth:rollup-3dw7zsm

Commits on Aug 18, 2021

On macOS, make strip="symbols" not pass any options to strip
joshtriplett
committed

Commits on Sep 20, 2021

Implement #[link_ordinal] attribute in the context of #[link(kind = "raw-dylib")].
ricobbe
committed

Commits on Oct 3, 2021

Skip platforms without unwinding support
c410-f3r
committed

Commits on Oct 5, 2021

Add documentation
smoelius
committed

Commits on Oct 7, 2021

Commits on Oct 8, 2021