derek.holloway
7502bf64a4
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92 lines
2.7 KiB
C++
92 lines
2.7 KiB
C++
// RUN: %clangxx_cfi -c -DTU1 -o %t1.o %s
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// RUN: %clangxx_cfi -c -DTU2 -o %t2.o %S/../cfi/anon-namespace.cpp
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// RUN: %clangxx_cfi -o %t1 %t1.o %t2.o
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// RUN: %expect_crash %run %t1 2>&1 | FileCheck --check-prefix=CFI %s
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// RUN: %clangxx_cfi -c -DTU1 -DB32 -o %t1.o %s
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// RUN: %clangxx_cfi -c -DTU2 -DB32 -o %t2.o %S/../cfi/anon-namespace.cpp
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// RUN: %clangxx_cfi -o %t2 %t1.o %t2.o
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// RUN: %expect_crash %run %t2 2>&1 | FileCheck --check-prefix=CFI %s
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// RUN: %clangxx_cfi -c -DTU1 -DB64 -o %t1.o %s
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// RUN: %clangxx_cfi -c -DTU2 -DB64 -o %t2.o %S/../cfi/anon-namespace.cpp
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// RUN: %clangxx_cfi -o %t3 %t1.o %t2.o
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// RUN: %expect_crash %run %t3 2>&1 | FileCheck --check-prefix=CFI %s
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// RUN: %clangxx_cfi -c -DTU1 -DBM -o %t1.o %s
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// RUN: %clangxx_cfi -c -DTU2 -DBM -o %t2.o %S/../cfi/anon-namespace.cpp
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// RUN: %clangxx_cfi -o %t4 %t1.o %t2.o
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// RUN: %expect_crash %run %t4 2>&1 | FileCheck --check-prefix=CFI %s
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// RUN: %clangxx -c -DTU1 -o %t1.o %s
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// RUN: %clangxx -c -DTU2 -o %t2.o %S/../cfi/anon-namespace.cpp
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// RUN: %clangxx -o %t5 %t1.o %t2.o
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// RUN: %run %t5 2>&1 | FileCheck --check-prefix=NCFI %s
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// RUN: %clangxx_cfi_diag -c -DTU1 -o %t1.o %s
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// RUN: %clangxx_cfi_diag -c -DTU2 -o %t2.o %S/../cfi/anon-namespace.cpp
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// RUN: %clangxx_cfi_diag -o %t6 %t1.o %t2.o
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// RUN: %run %t6 2>&1 | FileCheck --check-prefix=CFI-DIAG %s
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// Tests that the CFI mechanism treats classes in the anonymous namespace in
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// different translation units as having distinct identities. This is done by
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// compiling two translation units TU1 and TU2 containing a class named B in an
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// anonymous namespace, and testing that the program crashes if TU2 attempts to
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// use a TU1 B as a TU2 B.
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// FIXME: This test should not require that the paths supplied to the compiler
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// are different. It currently does so because bitset names have global scope
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// so we have to mangle the file path into the bitset name.
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// REQUIRES: cxxabi
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#include <stdio.h>
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#include "utils.h"
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struct A {
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virtual void f() = 0;
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};
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namespace {
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struct B : A {
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virtual void f() {}
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};
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}
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A *mkb();
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#ifdef TU1
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A *mkb() {
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return new B;
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}
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#endif // TU1
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#ifdef TU2
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int main() {
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create_derivers<B>();
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A *a = mkb();
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break_optimization(a);
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// CFI: 1
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// NCFI: 1
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fprintf(stderr, "1\n");
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// CFI-DIAG: runtime error: control flow integrity check for type '(anonymous namespace)::B' failed during base-to-derived cast
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// CFI-DIAG-NEXT: note: vtable is of type '{{.*}}anonymous namespace{{.*}}::B'
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// CFI-DIAG: runtime error: control flow integrity check for type '(anonymous namespace)::B' failed during virtual call
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// CFI-DIAG-NEXT: note: vtable is of type '{{.*}}anonymous namespace{{.*}}::B'
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((B *)a)->f(); // UB here
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// CFI-NOT: {{^2$}}
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// NCFI: {{^2$}}
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fprintf(stderr, "2\n");
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}
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#endif // TU2
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