[PATCH] D135345: [libunwind] Add module maps for libunwind

Thu Oct 6 15:27:38 PDT 2022

iana added a comment.

In D135345#3841584 <https://reviews.llvm.org/D135345#3841584>, @MaskRay wrote:

> Can you state the motivation for this change?

It's so that usr/include/module.modulemap can include these modulemap files on Apple platforms (or other platforms that want them).

================
Comment at: libunwind/include/libunwind.modulemap:1
+module libunwind [system] {
+  header "libunwind.h"
----------------
libunwind.h includes Availability.h/AvailabilityMacros.h which are part of the `Darwin.Availability` module on Apple platforms.

The `Darwin` module will include the clang builtin header unwind.h, which does include_next to this unwind.h.

All together the module hierarchy will go `libunwind` -> `Darwin` -> `_Builtin_unwind` (coming soon) -> `unwind`.

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D135345/new/

https://reviews.llvm.org/D135345