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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2020 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
#if defined(__APPLE__)
#include <mach/vm_param.h>
#include <stdint.h>
#include <ptrauth.h>
struct CSTypeRef {
uintptr_t a, b;
};
struct Range {
uintptr_t location, length;
};
static inline uintptr_t GetPtrauthMask(void) {
#if __has_feature(ptrauth_calls)
return (uintptr_t)ptrauth_strip((void*)0x0007ffffffffffff, 0);
#elif __arm64__ && __LP64__
// Mask all bits above the top of MACH_VM_MAX_ADDRESS, which will
// match the above ptrauth_strip.
return (uintptr_t)~0ull >> __builtin_clzll(MACH_VM_MAX_ADDRESS);
#else
return (uintptr_t)~0ull;
#endif
}
#endif
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