3fd61df186
* Runtime diagnostic data for cfi-icall changed to match the rest of cfi checks * Layout of all CFI diagnostic data changed to put Kind at the beginning. There is no ABI stability promise yet. * Call cfi_slowpath_diag instead of cfi_slowpath when needed. * Emit __cfi_check_fail function, which dispatches a CFI check faliure according to trap/recover settings of the current module. * A tiny driver change to match the way the new handlers are done in compiler-rt. llvm-svn: 258745
46 lines
1.6 KiB
C++
46 lines
1.6 KiB
C++
// RUN: %clang_cc1 -triple x86_64-unknown-linux -fsanitize=cfi-vcall -fsanitize-cfi-cross-dso -emit-llvm -o - %s | FileCheck --check-prefix=CHECK --check-prefix=ITANIUM %s
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// RUN: %clang_cc1 -triple x86_64-pc-windows-msvc -fsanitize=cfi-vcall -fsanitize-cfi-cross-dso -emit-llvm -o - %s | FileCheck --check-prefix=CHECK --check-prefix=MS %s
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struct A {
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A();
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virtual void f();
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};
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A::A() {}
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void A::f() {}
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void caller(A* a) {
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a->f();
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}
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namespace {
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struct B {
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virtual void f();
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};
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void B::f() {}
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} // namespace
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void g() {
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B b;
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b.f();
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}
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// MS: @[[B_VTABLE:.*]] = private unnamed_addr constant [2 x i8*] {{.*}}@"\01??_R4B@?A@@6B@"{{.*}}@"\01?f@B@?A@@UEAAXXZ"
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// CHECK: %[[VT:.*]] = load void (%struct.A*)**, void (%struct.A*)***
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// CHECK: %[[VT2:.*]] = bitcast {{.*}}%[[VT]] to i8*, !nosanitize
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// ITANIUM: %[[TEST:.*]] = call i1 @llvm.bitset.test(i8* %[[VT2]], metadata !"_ZTS1A"), !nosanitize
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// MS: %[[TEST:.*]] = call i1 @llvm.bitset.test(i8* %[[VT2]], metadata !"?AUA@@"), !nosanitize
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// CHECK: br i1 %[[TEST]], label %[[CONT:.*]], label %[[SLOW:.*]], {{.*}} !nosanitize
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// CHECK: [[SLOW]]
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// ITANIUM: call void @__cfi_slowpath_diag(i64 7004155349499253778, i8* %[[VT2]], {{.*}}) {{.*}} !nosanitize
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// MS: call void @__cfi_slowpath_diag(i64 -8005289897957287421, i8* %[[VT2]], {{.*}}) {{.*}} !nosanitize
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// CHECK: br label %[[CONT]], !nosanitize
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// CHECK: [[CONT]]
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// CHECK: call void %{{.*}}(%struct.A* %{{.*}})
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// No hash-based bit set entry for (anonymous namespace)::B
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// ITANIUM-NOT: !{i64 {{.*}}, [3 x i8*]* @_ZTVN12_GLOBAL__N_11BE,
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// MS-NOT: !{i64 {{.*}}, [2 x i8*]* @[[B_VTABLE]],
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