a3283a92ae
The qualifier allows programmer to directly control how pointers are signed when they are stored in a particular variable. The qualifier takes three arguments: the signing key, a flag specifying whether address discrimination should be used, and a non-negative integer that is used for additional discrimination. ``` typedef void (*my_callback)(const void*); my_callback __ptrauth(ptrauth_key_process_dependent_code, 1, 0xe27a) callback; ``` Co-Authored-By: John McCall rjmccall@apple.com
18 lines
579 B
C++
18 lines
579 B
C++
// RUN: %clang_cc1 -std=c++11 -fptrauth-intrinsics -fptrauth-calls -emit-llvm -o - -triple=aarch64-windows-msvc %s | FileCheck %s
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template <class T>
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struct S {};
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// CHECK: @"?s@@3U?$S@PE__ptrauth1A@ENC@AH@@A" =
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S<int * __ptrauth(2, 0, 1234)> s;
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// CHECK: define dso_local void @"?foo@@YAXPEAPE__ptrauth20OK@AH@Z"(
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void foo(int * __ptrauth(3, 1, 234) *) {}
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template <class T>
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void foo(T t) {}
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// CHECK: define weak_odr dso_local void @"??$foo@PEAPE__ptrauth0A@EA@AH@@YAXPEAPE__ptrauth0A@EA@AH@Z"(
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template void foo<int * __ptrauth(1, 0, 64) *>(int * __ptrauth(1, 0, 64) *);
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