Enable zero-cost exceptions on non-Apple arm64 platforms

Use the canonical __aarch64__ predefined macro for 64-bit ARM. Apple-
specific cases are left as __arm64__. Also add an #error for unsupported
architectures to catch this sort of case in the future.

Differential Revision: http://reviews.llvm.org/D12005


git-svn-id: https://llvm.org/svn/llvm-project/libunwind/trunk@244893 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed
tree: aa8b056ee8003db7909c86511db839d325e9b4ff
  1. cmake/
  2. include/
  3. src/
  4. test/
  5. .arcconfig
  6. .clang-format
  7. CMakeLists.txt