[compiler-rt] [libcxx] [libcxxabi] [libunwind] [runtimes][PAC] Harden unwinding when possible (PR #143230)

[Oliver Hunt via llvm-commits]

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@@ -103,6 +103,52 @@
 #define _LIBCXXABI_DTOR_FUNC
 #endif
 
+#if __has_include(<ptrauth.h>)
+#  include <ptrauth.h>
+#endif
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ojhunt wrote:

Once I get my local build setup again I will be doing a bunch of the ptrauth.h cleanup - there are many places that were obviously transitively included, and I'd rather minimize the different includes and guards

https://github.com/llvm/llvm-project/pull/143230