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36597fa128
test/msan/dtor-trivial.cpp. Runtime testing for poisoning vtable pointer in dtor. Summary: Runtime testing for vtable ptr poisoning in dtor. Reviewers: eugenis, kcc Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D12713 Clean test case & comments. Update tests for vptr poisoning order. Simplify test to rely upon globals. Assertions verify that vtable still accessible from dtors. Testing linear inheritance and multiple inheritance for vtable poisoning. Macros for testing expected failing functions. Rename macros. Removed xfail, modified FileCheck commands, to expect test to crash. llvm-svn: 247763
73 lines
1.6 KiB
C++
73 lines
1.6 KiB
C++
// RUN: %clangxx_msan %s -O0 -fsanitize=memory -fsanitize-memory-use-after-dtor -o %t && MSAN_OPTIONS=poison_in_dtor=1 %run %t
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// RUN: %clangxx_msan %s -O1 -fsanitize=memory -fsanitize-memory-use-after-dtor -o %t && MSAN_OPTIONS=poison_in_dtor=1 %run %t
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// RUN: %clangxx_msan %s -O2 -fsanitize=memory -fsanitize-memory-use-after-dtor -o %t && MSAN_OPTIONS=poison_in_dtor=1 %run %t
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// RUN: %clangxx_msan %s -DCVPTR=1 -O2 -fsanitize=memory -fsanitize-memory-use-after-dtor -o %t && MSAN_OPTIONS=poison_in_dtor=1 not %run %t
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// RUN: %clangxx_msan %s -DEAVPTR=1 -O2 -fsanitize=memory -fsanitize-memory-use-after-dtor -o %t && MSAN_OPTIONS=poison_in_dtor=1 not %run %t
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// RUN: %clangxx_msan %s -DEDVPTR=1 -O2 -fsanitize=memory -fsanitize-memory-use-after-dtor -o %t && MSAN_OPTIONS=poison_in_dtor=1 not %run %t
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// Expected to quit due to invalid access when invoking
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// function using vtable.
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class A {
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public:
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int x;
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virtual ~A() {
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// Should succeed
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this->A_Foo();
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}
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virtual void A_Foo() {}
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};
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class B : public virtual A {
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public:
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int y;
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virtual ~B() {}
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virtual void A_Foo() {}
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};
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class C : public B {
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public:
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int z;
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~C() {}
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};
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class D {
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public:
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int w;
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~D() {}
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virtual void D_Foo() {}
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};
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class E : public virtual A, public virtual D {
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public:
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int u;
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~E() {}
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void A_Foo() {}
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};
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int main() {
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// Simple linear inheritance
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C *c = new C();
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c->~C();
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// This fails
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#ifdef CVPTR
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c->A_Foo();
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#endif
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// Multiple inheritance, so has multiple vtables
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E *e = new E();
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e->~E();
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// Both of these fail
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#ifdef EAVPTR
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e->A_Foo();
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#endif
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#ifdef EDVPTR
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e->D_Foo();
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#endif
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}
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