[libunwind] [libunwind] Call `__arm_za_disable` before entering EH (PR #160905)

[Benjamin Maxwell via cfe-commits]

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@@ -1971,6 +1975,32 @@ Registers_arm64::operator=(const Registers_arm64 &other) {
   return *this;
 }
 
+void Registers_arm64::jumpto() {
+#if !defined(__APPLE__)
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MacDue wrote:

This should work on macOS too (as the same routines should be present); however, I think weak symbols are handled differently there (looks like it's `weak_import` instead). I'm going to try that on the CI (as I don't have a Mac to hand right now).

https://github.com/llvm/llvm-project/pull/160905