1f8031cd74
Some tests are broken at API level 30 on AOSP-master devices. When we change the buildbuit to API level 30, the following tests get enabled. They're currently broken due to various issues, and so fix up those issues. Reviewed By: oontvoo, eugenis Differential Revision: https://reviews.llvm.org/D94100
71 lines
2.9 KiB
C++
71 lines
2.9 KiB
C++
// RUN: %clangxx_cfi_dso_diag -std=c++11 %s -o %t
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// RUN: %t zero 2>&1 | FileCheck --check-prefix=CHECK-ZERO %s
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// RUN: %t unaddressable 2>&1 | FileCheck --check-prefix=CHECK-UNADDR %s
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// RUN: %t 2>&1 | FileCheck --check-prefix=CHECK-TYPEINFO %s
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// RUN: %clangxx_cfi_diag -std=c++11 %s -o %t2
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// RUN: %t2 zero 2>&1 | FileCheck --check-prefix=CHECK-ZERO %s
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// RUN: %t2 unaddressable 2>&1 | FileCheck --check-prefix=CHECK-UNADDR %s
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// RUN: %t2 2>&1 | FileCheck --check-prefix=CHECK-TYPEINFO %s
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// REQUIRES: cxxabi
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// These checks are unsupported on newer versions of Android due to the
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// following patch that makes it harder to defeat ASLR by not mapping unused
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// shadow regions:
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// https://android-review.googlesource.com/c/platform/bionic/+/1333960
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// UNSUPPORTED: android
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#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/mman.h>
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struct A {
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virtual void f();
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};
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void A::f() {}
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int main(int argc, char *argv[]) {
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char *volatile p = reinterpret_cast<char *>(new A());
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if (argc > 1 && strcmp(argv[1], "unaddressable") == 0) {
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void *vtable = mmap(nullptr, 4096, PROT_NONE, MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);
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// Create an object with a vtable in an unaddressable memory region.
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*(uintptr_t *)p = (uintptr_t)vtable + 64;
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// CHECK-UNADDR: runtime error: control flow integrity check for type 'A' failed during cast
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// CHECK-UNADDR: note: invalid vtable
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// CHECK-UNADDR: <memory cannot be printed>
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// CHECK-UNADDR: runtime error: control flow integrity check for type 'A' failed during cast
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// CHECK-UNADDR: note: invalid vtable
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// CHECK-UNADDR: <memory cannot be printed>
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} else if (argc > 1 && strcmp(argv[1], "zero") == 0) {
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// Create an object with a vtable outside of any known DSO, but still in an
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// addressable area.
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void *vtable = calloc(1, 128);
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*(uintptr_t *)p = (uintptr_t)vtable + 64;
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// CHECK-ZERO: runtime error: control flow integrity check for type 'A' failed during cast
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// CHECK-ZERO: note: invalid vtable
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// CHECK-ZERO: 00 00 00 00 00 00 00 00
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// CHECK-ZERO: runtime error: control flow integrity check for type 'A' failed during cast
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// CHECK-ZERO: note: invalid vtable
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// CHECK-ZERO: 00 00 00 00 00 00 00 00
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} else {
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// Create an object with a seemingly fine vtable, but with an unaddressable
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// typeinfo pointer.
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void *vtable = calloc(1, 128);
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memset(vtable, 0xFE, 128);
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*(uintptr_t *)p = (uintptr_t)vtable + 64;
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// CHECK-TYPEINFO: runtime error: control flow integrity check for type 'A' failed during cast
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// CHECK-TYPEINFO: note: invalid vtable
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// CHECK-TYPEINFO: fe fe fe fe fe fe fe fe
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// CHECK-TYPEINFO: runtime error: control flow integrity check for type 'A' failed during cast
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// CHECK-TYPEINFO: note: invalid vtable
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// CHECK-TYPEINFO: fe fe fe fe fe fe fe fe
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}
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A *volatile pa = reinterpret_cast<A *>(p);
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pa = reinterpret_cast<A *>(p);
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}
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