[PATCH] D96563: gn build: Support cross-compiling libunwind for Android.

[Peter Collingbourne via Phabricator via llvm-commits]

pcc created this revision.
pcc added reviewers: thakis, phosek.
Herald added a subscriber: danielkiss.
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- Usual cross-compilation fix: s/target_/current_/g

- Define _LIBUNWIND_IS_NATIVE_ONLY to enable unwinding past functions with return pointer authentication.

- Android needs two libunwind static libraries: one with symbols exported and one without. These both need to be in the same build tree so the libunwind_hermetic_static_library configuration option doesn't help here. Replace it with build rules that build both libraries.

- Install the libraries in the location that Android expects them to be.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D96563

Files:
  llvm/utils/gn/secondary/libunwind/BUILD.gn
  llvm/utils/gn/secondary/libunwind/src/BUILD.gn

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