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/*
* Copyright (C) 2014 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 <memory>
#include "base/macros.h"
#include "common_runtime_test.h"
#include "thread.h"
// This test checks the offsets of values in the thread TLS and entrypoint structures. A failure
// of this test means that offsets have changed from the last update of the test. This indicates
// that an oat version bump may be in order, and some defines should be carefully checked (or their
// corresponding tests run).
namespace art {
// OFFSETOF_MEMBER uses reinterpret_cast. This means it is not a constexpr. So we cannot use
// compile-time assertions. Once we find another way, adjust the define accordingly.
#define CHECKED(expr, name) \
EXPECT_TRUE(expr) << #name
// Macro to check whether two fields have an expected difference in offsets. The error is named
// name.
#define EXPECT_OFFSET_DIFF(first_type, first_field, second_type, second_field, diff, name) \
CHECKED(OFFSETOF_MEMBER(second_type, second_field) \
- OFFSETOF_MEMBER(first_type, first_field) == diff, name)
// Helper macro for when the fields are from the same type.
#define EXPECT_OFFSET_DIFFNP(type, first_field, second_field, diff) \
EXPECT_OFFSET_DIFF(type, first_field, type, second_field, diff, \
type ## _ ## first_field ## _ ## second_field)
// Helper macro for when the fields are from the same type and in the same member of said type.
#define EXPECT_OFFSET_DIFFP(type, prefix, first_field, second_field, diff) \
EXPECT_OFFSET_DIFF(type, prefix . first_field, type, prefix . second_field, diff, \
type ## _ ## prefix ## _ ## first_field ## _ ## second_field)
// Macro to check whether two fields have at least an expected difference in offsets. The error is
// named name.
#define EXPECT_OFFSET_DIFF_GT(first_type, first_field, second_type, second_field, diff, name) \
CHECKED(OFFSETOF_MEMBER(second_type, second_field) \
- OFFSETOF_MEMBER(first_type, first_field) >= diff, name)
// Helper macro for when the fields are from the same type.
#define EXPECT_OFFSET_DIFF_GT3(type, first_field, second_field, diff, name) \
EXPECT_OFFSET_DIFF_GT(type, first_field, type, second_field, diff, name)
class EntrypointsOrderTest : public CommonRuntimeTest {
protected:
void CheckThreadOffsets() {
CHECKED(OFFSETOF_MEMBER(Thread, tls32_.state_and_flags) == 0, thread_flags_at_zero);
EXPECT_OFFSET_DIFFP(Thread, tls32_, state_and_flags, suspend_count, 4);
EXPECT_OFFSET_DIFFP(Thread, tls32_, suspend_count, debug_suspend_count, 4);
EXPECT_OFFSET_DIFFP(Thread, tls32_, debug_suspend_count, thin_lock_thread_id, 4);
EXPECT_OFFSET_DIFFP(Thread, tls32_, thin_lock_thread_id, tid, 4);
EXPECT_OFFSET_DIFFP(Thread, tls32_, tid, daemon, 4);
EXPECT_OFFSET_DIFFP(Thread, tls32_, daemon, throwing_OutOfMemoryError, 4);
EXPECT_OFFSET_DIFFP(Thread, tls32_, throwing_OutOfMemoryError, no_thread_suspension, 4);
EXPECT_OFFSET_DIFFP(Thread, tls32_, no_thread_suspension, thread_exit_check_count, 4);
// TODO: Better connection. Take alignment into account.
EXPECT_OFFSET_DIFF_GT3(Thread, tls32_.thread_exit_check_count, tls64_.trace_clock_base, 4,
thread_tls32_to_tls64);
EXPECT_OFFSET_DIFFP(Thread, tls64_, trace_clock_base, deoptimization_return_value, 8);
EXPECT_OFFSET_DIFFP(Thread, tls64_, deoptimization_return_value, stats, 8);
// TODO: Better connection. Take alignment into account.
EXPECT_OFFSET_DIFF_GT3(Thread, tls64_.stats, tlsPtr_.card_table, 8, thread_tls64_to_tlsptr);
EXPECT_OFFSET_DIFFP(Thread, tlsPtr_, card_table, exception, kPointerSize);
EXPECT_OFFSET_DIFFP(Thread, tlsPtr_, exception, stack_end, kPointerSize);
EXPECT_OFFSET_DIFFP(Thread, tlsPtr_, stack_end, managed_stack, kPointerSize);
EXPECT_OFFSET_DIFFP(Thread, tlsPtr_, managed_stack, suspend_trigger, sizeof(ManagedStack));
EXPECT_OFFSET_DIFFP(Thread, tlsPtr_, suspend_trigger, jni_env, kPointerSize);
EXPECT_OFFSET_DIFFP(Thread, tlsPtr_, jni_env, self, kPointerSize);
EXPECT_OFFSET_DIFFP(Thread, tlsPtr_, self, opeer, kPointerSize);
EXPECT_OFFSET_DIFFP(Thread, tlsPtr_, opeer, jpeer, kPointerSize);
EXPECT_OFFSET_DIFFP(Thread, tlsPtr_, jpeer, stack_begin, kPointerSize);
EXPECT_OFFSET_DIFFP(Thread, tlsPtr_, stack_begin, stack_size, kPointerSize);
EXPECT_OFFSET_DIFFP(Thread, tlsPtr_, stack_size, throw_location, kPointerSize);
EXPECT_OFFSET_DIFFP(Thread, tlsPtr_, throw_location, stack_trace_sample, sizeof(ThrowLocation));
EXPECT_OFFSET_DIFFP(Thread, tlsPtr_, stack_trace_sample, wait_next, kPointerSize);
EXPECT_OFFSET_DIFFP(Thread, tlsPtr_, wait_next, monitor_enter_object, kPointerSize);
EXPECT_OFFSET_DIFFP(Thread, tlsPtr_, monitor_enter_object, top_handle_scope, kPointerSize);
EXPECT_OFFSET_DIFFP(Thread, tlsPtr_, top_handle_scope, class_loader_override, kPointerSize);
EXPECT_OFFSET_DIFFP(Thread, tlsPtr_, class_loader_override, long_jump_context, kPointerSize);
EXPECT_OFFSET_DIFFP(Thread, tlsPtr_, long_jump_context, instrumentation_stack, kPointerSize);
EXPECT_OFFSET_DIFFP(Thread, tlsPtr_, instrumentation_stack, debug_invoke_req, kPointerSize);
EXPECT_OFFSET_DIFFP(Thread, tlsPtr_, debug_invoke_req, single_step_control, kPointerSize);
EXPECT_OFFSET_DIFFP(Thread, tlsPtr_, single_step_control, deoptimization_shadow_frame,
kPointerSize);
EXPECT_OFFSET_DIFFP(Thread, tlsPtr_, deoptimization_shadow_frame,
shadow_frame_under_construction, kPointerSize);
EXPECT_OFFSET_DIFFP(Thread, tlsPtr_, shadow_frame_under_construction, name, kPointerSize);
EXPECT_OFFSET_DIFFP(Thread, tlsPtr_, name, pthread_self, kPointerSize);
EXPECT_OFFSET_DIFFP(Thread, tlsPtr_, pthread_self, last_no_thread_suspension_cause,
kPointerSize);
EXPECT_OFFSET_DIFFP(Thread, tlsPtr_, last_no_thread_suspension_cause, checkpoint_functions,
kPointerSize);
EXPECT_OFFSET_DIFFP(Thread, tlsPtr_, checkpoint_functions, interpreter_entrypoints,
kPointerSize * 3);
// Skip across the entrypoints structures.
EXPECT_OFFSET_DIFFP(Thread, tlsPtr_, thread_local_start, thread_local_pos, kPointerSize);
EXPECT_OFFSET_DIFFP(Thread, tlsPtr_, thread_local_pos, thread_local_end, kPointerSize);
EXPECT_OFFSET_DIFFP(Thread, tlsPtr_, thread_local_end, thread_local_objects, kPointerSize);
EXPECT_OFFSET_DIFFP(Thread, tlsPtr_, thread_local_objects, rosalloc_runs, kPointerSize);
EXPECT_OFFSET_DIFFP(Thread, tlsPtr_, rosalloc_runs, thread_local_alloc_stack_top,
kPointerSize * kNumRosAllocThreadLocalSizeBrackets);
EXPECT_OFFSET_DIFFP(Thread, tlsPtr_, thread_local_alloc_stack_top, thread_local_alloc_stack_end,
kPointerSize);
EXPECT_OFFSET_DIFFP(Thread, tlsPtr_, thread_local_alloc_stack_end, held_mutexes, kPointerSize);
EXPECT_OFFSET_DIFF(Thread, tlsPtr_.held_mutexes, Thread, wait_mutex_,
kPointerSize * kLockLevelCount, thread_tlsptr_end);
}
void CheckInterpreterEntryPoints() {
CHECKED(OFFSETOF_MEMBER(InterpreterEntryPoints, pInterpreterToInterpreterBridge) == 0,
InterpreterEntryPoints_start_with_i2i);
EXPECT_OFFSET_DIFFNP(InterpreterEntryPoints, pInterpreterToInterpreterBridge,
pInterpreterToCompiledCodeBridge, kPointerSize);
CHECKED(OFFSETOF_MEMBER(InterpreterEntryPoints, pInterpreterToCompiledCodeBridge)
+ kPointerSize == sizeof(InterpreterEntryPoints), InterpreterEntryPoints_all);
}
void CheckJniEntryPoints() {
CHECKED(OFFSETOF_MEMBER(JniEntryPoints, pDlsymLookup) == 0,
JniEntryPoints_start_with_dlsymlookup);
CHECKED(OFFSETOF_MEMBER(JniEntryPoints, pDlsymLookup)
+ kPointerSize == sizeof(JniEntryPoints), JniEntryPoints_all);
}
void CheckPortableEntryPoints() {
CHECKED(OFFSETOF_MEMBER(PortableEntryPoints, pPortableImtConflictTrampoline) == 0,
PortableEntryPoints_start_with_imt);
EXPECT_OFFSET_DIFFNP(PortableEntryPoints, pPortableImtConflictTrampoline,
pPortableResolutionTrampoline, kPointerSize);
EXPECT_OFFSET_DIFFNP(PortableEntryPoints, pPortableResolutionTrampoline,
pPortableToInterpreterBridge, kPointerSize);
CHECKED(OFFSETOF_MEMBER(PortableEntryPoints, pPortableToInterpreterBridge)
+ kPointerSize == sizeof(PortableEntryPoints), PortableEntryPoints_all);
}
void CheckQuickEntryPoints() {
CHECKED(OFFSETOF_MEMBER(QuickEntryPoints, pAllocArray) == 0,
QuickEntryPoints_start_with_allocarray);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pAllocArray, pAllocArrayResolved, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pAllocArrayResolved, pAllocArrayWithAccessCheck,
kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pAllocArrayWithAccessCheck, pAllocObject, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pAllocObject, pAllocObjectResolved, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pAllocObjectResolved, pAllocObjectInitialized,
kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pAllocObjectInitialized, pAllocObjectWithAccessCheck,
kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pAllocObjectWithAccessCheck, pCheckAndAllocArray,
kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pCheckAndAllocArray, pCheckAndAllocArrayWithAccessCheck,
kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pCheckAndAllocArrayWithAccessCheck,
pInstanceofNonTrivial, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pInstanceofNonTrivial, pCheckCast, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pCheckCast, pInitializeStaticStorage, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pInitializeStaticStorage, pInitializeTypeAndVerifyAccess,
kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pInitializeTypeAndVerifyAccess, pInitializeType,
kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pInitializeType, pResolveString, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pResolveString, pSet32Instance, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pSet32Instance, pSet32Static, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pSet32Static, pSet64Instance, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pSet64Instance, pSet64Static, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pSet64Static, pSetObjInstance, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pSetObjInstance, pSetObjStatic, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pSetObjStatic, pGet32Instance, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pGet32Instance, pGet32Static, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pGet32Static, pGet64Instance, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pGet64Instance, pGet64Static, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pGet64Static, pGetObjInstance, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pGetObjInstance, pGetObjStatic, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pGetObjStatic, pAputObjectWithNullAndBoundCheck,
kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pAputObjectWithNullAndBoundCheck,
pAputObjectWithBoundCheck, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pAputObjectWithBoundCheck, pAputObject, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pAputObject, pHandleFillArrayData, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pHandleFillArrayData, pJniMethodStart, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pJniMethodStart, pJniMethodStartSynchronized,
kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pJniMethodStartSynchronized, pJniMethodEnd,
kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pJniMethodEnd, pJniMethodEndSynchronized, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pJniMethodEndSynchronized, pJniMethodEndWithReference,
kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pJniMethodEndWithReference,
pJniMethodEndWithReferenceSynchronized, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pJniMethodEndWithReferenceSynchronized,
pQuickGenericJniTrampoline, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pQuickGenericJniTrampoline, pLockObject, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pLockObject, pUnlockObject, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pUnlockObject, pCmpgDouble, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pCmpgDouble, pCmpgFloat, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pCmpgFloat, pCmplDouble, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pCmplDouble, pCmplFloat, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pCmplFloat, pFmod, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pFmod, pL2d, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pL2d, pFmodf, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pFmodf, pL2f, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pL2f, pD2iz, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pD2iz, pF2iz, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pF2iz, pIdivmod, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pIdivmod, pD2l, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pD2l, pF2l, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pF2l, pLdiv, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pLdiv, pLmod, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pLmod, pLmul, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pLmul, pShlLong, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pShlLong, pShrLong, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pShrLong, pUshrLong, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pUshrLong, pIndexOf, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pIndexOf, pStringCompareTo, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pStringCompareTo, pMemcpy, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pMemcpy, pQuickImtConflictTrampoline, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pQuickImtConflictTrampoline, pQuickResolutionTrampoline,
kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pQuickResolutionTrampoline, pQuickToInterpreterBridge,
kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pQuickToInterpreterBridge,
pInvokeDirectTrampolineWithAccessCheck, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pInvokeDirectTrampolineWithAccessCheck,
pInvokeInterfaceTrampolineWithAccessCheck, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pInvokeInterfaceTrampolineWithAccessCheck,
pInvokeStaticTrampolineWithAccessCheck, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pInvokeStaticTrampolineWithAccessCheck,
pInvokeSuperTrampolineWithAccessCheck, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pInvokeSuperTrampolineWithAccessCheck,
pInvokeVirtualTrampolineWithAccessCheck, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pInvokeVirtualTrampolineWithAccessCheck,
pTestSuspend, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pTestSuspend, pDeliverException, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pDeliverException, pThrowArrayBounds, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pThrowArrayBounds, pThrowDivZero, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pThrowDivZero, pThrowNoSuchMethod, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pThrowNoSuchMethod, pThrowNullPointer, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pThrowNullPointer, pThrowStackOverflow, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pThrowStackOverflow, pA64Load, kPointerSize);
EXPECT_OFFSET_DIFFNP(QuickEntryPoints, pA64Load, pA64Store, kPointerSize);
CHECKED(OFFSETOF_MEMBER(QuickEntryPoints, pA64Store)
+ kPointerSize == sizeof(QuickEntryPoints), QuickEntryPoints_all);
}
};
TEST_F(EntrypointsOrderTest, ThreadOffsets) {
CheckThreadOffsets();
}
TEST_F(EntrypointsOrderTest, InterpreterEntryPoints) {
CheckInterpreterEntryPoints();
}
TEST_F(EntrypointsOrderTest, JniEntryPoints) {
CheckJniEntryPoints();
}
TEST_F(EntrypointsOrderTest, PortableEntryPoints) {
CheckPortableEntryPoints();
}
TEST_F(EntrypointsOrderTest, QuickEntryPoints) {
CheckQuickEntryPoints();
}
} // namespace art