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[cxx-interop] Handle missing <ptrauth.h> #85979

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Merged
egorzhdan merged 1 commit into from
Dec 12, 2025
Merged

[cxx-interop] Handle missing <ptrauth.h> #85979

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8 changes: 8 additions & 0 deletions stdlib/public/Cxx/cxxshim/libcxxstdlibshim.h
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,9 @@
#include <functional>
#include <string>
#include <type_traits>
#if __has_include(<ptrauth.h>)
#include <ptrauth.h>
#endif

/// Used for std::string conformance to Swift.Hashable
typedef std::hash<std::string> __swift_interopHashOfString;
Expand Down Expand Up @@ -68,10 +70,16 @@ struct __SwiftFunctionWrapper {
__swift_interop_closure closure;

Result operator()(Args... args) const {
#if __has_include(<ptrauth.h>)
return ((LoweredFunction *)ptrauth_auth_and_resign(
closure.func, ptrauth_key_asia, PtrAuthTypeDiscriminator,
ptrauth_key_function_pointer, 0))(std::forward<Args>(args)...,
closure.context);
#else
// Android NDK 28 does not define the ptrauth macros.
return ((LoweredFunction *)closure.func)(std::forward<Args>(args)...,
closure.context);
#endif
}

// A memberwise constructor is synthesized by Swift.
Expand Down