================
@@ -103,6 +103,52 @@
#define _LIBCXXABI_DTOR_FUNC
#endif
+#if __has_include(<ptrauth.h>)
+# include <ptrauth.h>
+#endif
----------------
atrosinenko wrote:
I wonder if it is a supported configuration when `ptrauth.h` header is not
available, but `__has_extension(ptrauth_qualifier)` is true? Note that the
macro definitions guarded with `#if __has_extension(ptrauth_qualifier)` still
refer to identifiers like `ptrauth_key_process_dependent_data`.
Maybe this could be simplified by assuming that `__ptrauth_cxxabi_*` are
defined to non-empty expressions if and only if
`__has_extension(ptrauth_qualifier)` is true, and in that case `ptrauth.h`
header must exist:
```cpp
#if __has_extension(ptrauth_qualifier)
# include <ptrauth.h>
// ptrauth_string_discriminator("__cxa_exception::actionRecord") == 0xFC91
# define __ptrauth_cxxabi_action_record \
__ptrauth(ptrauth_key_process_dependent_data, 1, 0xFC91)
// ...
#endif
```
https://github.com/llvm/llvm-project/pull/143230
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