e23250ecb7
The functions are currently always signed/authenticated with zero discriminator. Co-Authored-By: John McCall <rjmccall@apple.com>
37 lines
1.4 KiB
C
37 lines
1.4 KiB
C
// RUN: %clang_cc1 %s -triple arm64e-apple-ios13 -fptrauth-calls -fptrauth-intrinsics -disable-llvm-passes -emit-llvm -o- | FileCheck %s
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// RUN: %clang_cc1 %s -triple aarch64-linux-gnu -fptrauth-calls -fptrauth-intrinsics -disable-llvm-passes -emit-llvm -o- | FileCheck %s
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// RUN: %clang_cc1 -xc++ %s -triple arm64e-apple-ios13 -fptrauth-calls -fptrauth-intrinsics -disable-llvm-passes -emit-llvm -o- | FileCheck %s --check-prefixes=CHECK,CXX
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// RUN: %clang_cc1 -xc++ %s -triple aarch64-linux-gnu -fptrauth-calls -fptrauth-intrinsics -disable-llvm-passes -emit-llvm -o- | FileCheck %s --check-prefixes=CHECK,CXX
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#ifdef __cplusplus
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extern "C" {
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#endif
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void f(void);
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#ifdef __cplusplus
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// CXX: define {{(dso_local )?}}internal void @__cxx_global_var_init()
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// CXX: store ptr getelementptr inbounds (i32, ptr ptrauth (ptr @f, i32 0), i64 2), ptr @_ZL2fp, align 8
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// This is rejected in C mode as adding a non-zero constant to a signed pointer
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// is unrepresentable in relocations. In C++ mode, this can be done dynamically
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// by the global constructor.
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__attribute__((used))
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void (*const fp)(void) = (void (*)(void))((int *)&f + 2);
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#endif
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// CHECK: define {{(dso_local )?}}void @t1()
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void t1() {
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// CHECK: [[PF:%.*]] = alloca ptr
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// CHECK: store ptr getelementptr inbounds (i32, ptr ptrauth (ptr @f, i32 0), i64 2), ptr [[PF]]
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void (*pf)(void) = (void (*)(void))((int *)&f + 2);
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(void)pf;
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}
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#ifdef __cplusplus
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}
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#endif
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