[compiler-rt] [libcxxabi] [libunwind] [runtimes][PAC] Harden unwinding when possible (#138571) (PR #143230)

[Anatoly Trosinenko via llvm-commits]

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@@ -61,10 +62,10 @@ struct _LIBCXXABI_HIDDEN __cxa_exception {
     int propagationCount;
 #else
     int handlerSwitchValue;
-    const unsigned char *actionRecord;
-    const unsigned char *languageSpecificData;
-    void *catchTemp;
-    void *adjustedPtr;
+    const unsigned char* _LIBCXXABI_PTRAUTH_PDD("__cxa_exception::actionRecord") actionRecord;
+    const unsigned char* _LIBCXXABI_PTRAUTH_PDD("__cxa_exception::languageSpecificData") languageSpecificData;
+    void* _LIBCXXABI_PTRAUTH_PDD("__cxa_exception::catchTemp") catchTemp;
+    void* _LIBCXXABI_PTRAUTH_PDD("__cxa_exception::adjustedPtr") adjustedPtr;
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atrosinenko wrote:

Same here.

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