You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
187 lines
8.4 KiB
187 lines
8.4 KiB
4 months ago
|
/*
|
||
|
|
* Copyright (C) 2017 The Android Open Source Project
|
||
|
|
*
|
||
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
* you may not use this file except in compliance with the License.
|
||
|
|
* You may obtain a copy of the License at
|
||
|
|
*
|
||
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
*
|
||
|
|
* Unless required by applicable law or agreed to in writing, software
|
||
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
* See the License for the specific language governing permissions and
|
||
|
|
* limitations under the License.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "common_runtime_test.h"
|
||
|
|
|
||
|
|
#include "base/memory_tool.h"
|
||
|
|
#include "class_linker-inl.h"
|
||
|
|
#include "class_root-inl.h"
|
||
|
|
#include "handle_scope-inl.h"
|
||
|
|
#include "mirror/object-inl.h"
|
||
|
|
#include "mirror/object_array-alloc-inl.h"
|
||
|
|
#include "mirror/object_array-inl.h"
|
||
|
|
#include "mirror/string.h"
|
||
|
|
#include "runtime.h"
|
||
|
|
#include "scoped_thread_state_change-inl.h"
|
||
|
|
#include "verification.h"
|
||
|
|
|
||
|
|
namespace art {
|
||
|
|
namespace gc {
|
||
|
|
|
||
|
|
class VerificationTest : public CommonRuntimeTest {
|
||
|
|
protected:
|
||
|
|
VerificationTest() {}
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
ObjPtr<mirror::ObjectArray<T>> AllocObjectArray(Thread* self, size_t length)
|
||
|
|
REQUIRES_SHARED(Locks::mutator_lock_) {
|
||
|
|
return mirror::ObjectArray<T>::Alloc(
|
||
|
|
self,
|
||
|
|
GetClassRoot<mirror::ObjectArray<mirror::Object>>(),
|
||
|
|
length);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
TEST_F(VerificationTest, IsValidHeapObjectAddress) {
|
||
|
|
ScopedObjectAccess soa(Thread::Current());
|
||
|
|
const Verification* const v = Runtime::Current()->GetHeap()->GetVerification();
|
||
|
|
EXPECT_FALSE(v->IsValidHeapObjectAddress(reinterpret_cast<const void*>(1)));
|
||
|
|
EXPECT_FALSE(v->IsValidHeapObjectAddress(reinterpret_cast<const void*>(4)));
|
||
|
|
EXPECT_FALSE(v->IsValidHeapObjectAddress(nullptr));
|
||
|
|
VariableSizedHandleScope hs(soa.Self());
|
||
|
|
Handle<mirror::String> string(
|
||
|
|
hs.NewHandle(mirror::String::AllocFromModifiedUtf8(soa.Self(), "test")));
|
||
|
|
EXPECT_TRUE(v->IsValidHeapObjectAddress(string.Get()));
|
||
|
|
// Address in the heap that isn't aligned.
|
||
|
|
const void* unaligned_address =
|
||
|
|
reinterpret_cast<const void*>(reinterpret_cast<uintptr_t>(string.Get()) + 1);
|
||
|
|
EXPECT_TRUE(v->IsAddressInHeapSpace(unaligned_address));
|
||
|
|
EXPECT_FALSE(v->IsValidHeapObjectAddress(unaligned_address));
|
||
|
|
EXPECT_TRUE(v->IsValidHeapObjectAddress(string->GetClass()));
|
||
|
|
const uintptr_t uint_klass = reinterpret_cast<uintptr_t>(string->GetClass());
|
||
|
|
// Not actually a valid object but the verification can't know that. Guaranteed to be inside a
|
||
|
|
// heap space.
|
||
|
|
EXPECT_TRUE(v->IsValidHeapObjectAddress(
|
||
|
|
reinterpret_cast<const void*>(uint_klass + kObjectAlignment)));
|
||
|
|
EXPECT_FALSE(v->IsValidHeapObjectAddress(
|
||
|
|
reinterpret_cast<const void*>(&uint_klass)));
|
||
|
|
}
|
||
|
|
|
||
|
|
TEST_F(VerificationTest, IsValidClassOrNotInHeap) {
|
||
|
|
ScopedObjectAccess soa(Thread::Current());
|
||
|
|
VariableSizedHandleScope hs(soa.Self());
|
||
|
|
Handle<mirror::String> string(
|
||
|
|
hs.NewHandle(mirror::String::AllocFromModifiedUtf8(soa.Self(), "test")));
|
||
|
|
const Verification* const v = Runtime::Current()->GetHeap()->GetVerification();
|
||
|
|
EXPECT_FALSE(v->IsValidClass(reinterpret_cast<const void*>(1)));
|
||
|
|
EXPECT_FALSE(v->IsValidClass(reinterpret_cast<const void*>(4)));
|
||
|
|
EXPECT_FALSE(v->IsValidClass(nullptr));
|
||
|
|
EXPECT_TRUE(v->IsValidClass(string->GetClass()));
|
||
|
|
EXPECT_FALSE(v->IsValidClass(string.Get()));
|
||
|
|
}
|
||
|
|
|
||
|
|
TEST_F(VerificationTest, IsValidClassInHeap) {
|
||
|
|
// Now that the String class is allocated in the non-moving space when the
|
||
|
|
// runtime is running without a boot image (which is the case in this gtest),
|
||
|
|
// and we run with AddressSanizer, it is possible that the (presumably
|
||
|
|
// invalid) memory location `uint_klass - kObjectAlignment` tested below is
|
||
|
|
// poisoned when running with AddressSanizer. Disable this test in that case.
|
||
|
|
TEST_DISABLED_FOR_MEMORY_TOOL();
|
||
|
|
ScopedObjectAccess soa(Thread::Current());
|
||
|
|
VariableSizedHandleScope hs(soa.Self());
|
||
|
|
Handle<mirror::String> string(
|
||
|
|
hs.NewHandle(mirror::String::AllocFromModifiedUtf8(soa.Self(), "test")));
|
||
|
|
const Verification* const v = Runtime::Current()->GetHeap()->GetVerification();
|
||
|
|
const uintptr_t uint_klass = reinterpret_cast<uintptr_t>(string->GetClass());
|
||
|
|
EXPECT_FALSE(v->IsValidClass(reinterpret_cast<const void*>(uint_klass - kObjectAlignment)));
|
||
|
|
EXPECT_FALSE(v->IsValidClass(reinterpret_cast<const void*>(&uint_klass)));
|
||
|
|
}
|
||
|
|
|
||
|
|
TEST_F(VerificationTest, DumpInvalidObjectInfo) {
|
||
|
|
ScopedLogSeverity sls(LogSeverity::INFO);
|
||
|
|
ScopedObjectAccess soa(Thread::Current());
|
||
|
|
Runtime* const runtime = Runtime::Current();
|
||
|
|
VariableSizedHandleScope hs(soa.Self());
|
||
|
|
const Verification* const v = runtime->GetHeap()->GetVerification();
|
||
|
|
LOG(INFO) << v->DumpObjectInfo(reinterpret_cast<const void*>(1), "obj");
|
||
|
|
LOG(INFO) << v->DumpObjectInfo(reinterpret_cast<const void*>(4), "obj");
|
||
|
|
LOG(INFO) << v->DumpObjectInfo(nullptr, "obj");
|
||
|
|
}
|
||
|
|
|
||
|
|
TEST_F(VerificationTest, DumpValidObjectInfo) {
|
||
|
|
// Now that the String class is allocated in the non-moving space when the
|
||
|
|
// runtime is running without a boot image (which is the case in this gtest),
|
||
|
|
// and we run with AddressSanizer, it is possible that the calls to
|
||
|
|
// Verification::DumpObjectInfo below involving the String class object
|
||
|
|
// (`string->GetClass()`, `uint_klass`, etc.) access poisoned memory when they
|
||
|
|
// call Verification::DumpRAMAroundAddress. Disable this test in that case.
|
||
|
|
TEST_DISABLED_FOR_MEMORY_TOOL();
|
||
|
|
ScopedLogSeverity sls(LogSeverity::INFO);
|
||
|
|
ScopedObjectAccess soa(Thread::Current());
|
||
|
|
Runtime* const runtime = Runtime::Current();
|
||
|
|
VariableSizedHandleScope hs(soa.Self());
|
||
|
|
Handle<mirror::String> string(
|
||
|
|
hs.NewHandle(mirror::String::AllocFromModifiedUtf8(soa.Self(), "obj")));
|
||
|
|
Handle<mirror::ObjectArray<mirror::Object>> arr(
|
||
|
|
hs.NewHandle(AllocObjectArray<mirror::Object>(soa.Self(), 256)));
|
||
|
|
const Verification* const v = runtime->GetHeap()->GetVerification();
|
||
|
|
LOG(INFO) << v->DumpObjectInfo(string.Get(), "test");
|
||
|
|
LOG(INFO) << v->DumpObjectInfo(string->GetClass(), "obj");
|
||
|
|
const uintptr_t uint_klass = reinterpret_cast<uintptr_t>(string->GetClass());
|
||
|
|
LOG(INFO) << v->DumpObjectInfo(reinterpret_cast<const void*>(uint_klass - kObjectAlignment),
|
||
|
|
"obj");
|
||
|
|
LOG(INFO) << v->DumpObjectInfo(reinterpret_cast<const void*>(&uint_klass), "obj");
|
||
|
|
LOG(INFO) << v->DumpObjectInfo(arr.Get(), "arr");
|
||
|
|
}
|
||
|
|
|
||
|
|
TEST_F(VerificationTest, LogHeapCorruption) {
|
||
|
|
// Now that the String class is allocated in the non-moving space when the
|
||
|
|
// runtime is running without a boot image (which is the case in this gtest),
|
||
|
|
// and we run with AddressSanizer, it is possible that the call to
|
||
|
|
// Verification::LogHeapCorruption below involving the String class object
|
||
|
|
// (`string->GetClass()`) accesses poisoned memory when it calls
|
||
|
|
// Verification::DumpRAMAroundAddress. Disable this test in that case.
|
||
|
|
TEST_DISABLED_FOR_MEMORY_TOOL();
|
||
|
|
ScopedLogSeverity sls(LogSeverity::INFO);
|
||
|
|
ScopedObjectAccess soa(Thread::Current());
|
||
|
|
Runtime* const runtime = Runtime::Current();
|
||
|
|
VariableSizedHandleScope hs(soa.Self());
|
||
|
|
Handle<mirror::String> string(
|
||
|
|
hs.NewHandle(mirror::String::AllocFromModifiedUtf8(soa.Self(), "obj")));
|
||
|
|
using ObjArray = mirror::ObjectArray<mirror::Object>;
|
||
|
|
Handle<ObjArray> arr(
|
||
|
|
hs.NewHandle(AllocObjectArray<mirror::Object>(soa.Self(), 256)));
|
||
|
|
const Verification* const v = runtime->GetHeap()->GetVerification();
|
||
|
|
arr->Set(0, string.Get());
|
||
|
|
// Test normal cases.
|
||
|
|
v->LogHeapCorruption(arr.Get(), ObjArray::DataOffset(kHeapReferenceSize), string.Get(), false);
|
||
|
|
v->LogHeapCorruption(string.Get(), mirror::Object::ClassOffset(), string->GetClass(), false);
|
||
|
|
// Test null holder cases.
|
||
|
|
v->LogHeapCorruption(nullptr, MemberOffset(0), string.Get(), false);
|
||
|
|
v->LogHeapCorruption(nullptr, MemberOffset(0), arr.Get(), false);
|
||
|
|
}
|
||
|
|
|
||
|
|
TEST_F(VerificationTest, FindPathFromRootSet) {
|
||
|
|
ScopedLogSeverity sls(LogSeverity::INFO);
|
||
|
|
ScopedObjectAccess soa(Thread::Current());
|
||
|
|
Runtime* const runtime = Runtime::Current();
|
||
|
|
VariableSizedHandleScope hs(soa.Self());
|
||
|
|
Handle<mirror::ObjectArray<mirror::Object>> arr(
|
||
|
|
hs.NewHandle(AllocObjectArray<mirror::Object>(soa.Self(), 256)));
|
||
|
|
ObjPtr<mirror::String> str = mirror::String::AllocFromModifiedUtf8(soa.Self(), "obj");
|
||
|
|
arr->Set(0, str);
|
||
|
|
const Verification* const v = runtime->GetHeap()->GetVerification();
|
||
|
|
std::string path = v->FirstPathFromRootSet(str);
|
||
|
|
EXPECT_GT(path.length(), 0u);
|
||
|
|
std::ostringstream oss;
|
||
|
|
oss << arr.Get();
|
||
|
|
EXPECT_NE(path.find(oss.str()), std::string::npos);
|
||
|
|
LOG(INFO) << path;
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace gc
|
||
|
|
} // namespace art
|