runtime/interpreter/unstarted_runtime_test.cc - platform/art - Git at Google

 /*
  * Copyright (C) 2015 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 "unstarted_runtime.h"

 #include "class_linker.h"
 #include "common_runtime_test.h"
 #include "dex_instruction.h"
 #include "handle.h"
 #include "handle_scope-inl.h"
 #include "interpreter/interpreter_common.h"
 #include "mirror/class_loader.h"
 #include "mirror/string-inl.h"
 #include "runtime.h"
 #include "scoped_thread_state_change.h"
 #include "thread.h"

 namespace art {
 namespace interpreter {

 class UnstartedRuntimeTest : public CommonRuntimeTest {
  protected:
   // Re-expose all UnstartedRuntime implementations so we don't need to declare a million
   // test friends.

   // Methods that intercept available libcore implementations.
 #define UNSTARTED_DIRECT(Name, SigIgnored)                 \
   static void Unstarted ## Name(Thread* self,              \
                                 ShadowFrame* shadow_frame, \
                                 JValue* result,            \
                                 size_t arg_offset)         \
       SHARED_REQUIRES(Locks::mutator_lock_) {        \
     interpreter::UnstartedRuntime::Unstarted ## Name(self, shadow_frame, result, arg_offset); \
   }
 #include "unstarted_runtime_list.h"
   UNSTARTED_RUNTIME_DIRECT_LIST(UNSTARTED_DIRECT)
 #undef UNSTARTED_RUNTIME_DIRECT_LIST
 #undef UNSTARTED_RUNTIME_JNI_LIST
 #undef UNSTARTED_DIRECT

   // Methods that are native.
 #define UNSTARTED_JNI(Name, SigIgnored)                       \
   static void UnstartedJNI ## Name(Thread* self,              \
                                    ArtMethod* method,         \
                                    mirror::Object* receiver,  \
                                    uint32_t* args,            \
                                    JValue* result)            \
       SHARED_REQUIRES(Locks::mutator_lock_) {           \
     interpreter::UnstartedRuntime::UnstartedJNI ## Name(self, method, receiver, args, result); \
   }
 #include "unstarted_runtime_list.h"
   UNSTARTED_RUNTIME_JNI_LIST(UNSTARTED_JNI)
 #undef UNSTARTED_RUNTIME_DIRECT_LIST
 #undef UNSTARTED_RUNTIME_JNI_LIST
 #undef UNSTARTED_JNI
 };

 TEST_F(UnstartedRuntimeTest, MemoryPeekByte) {
   Thread* self = Thread::Current();

   ScopedObjectAccess soa(self);
   constexpr const uint8_t base_array[] = "abcdefghijklmnop";
   constexpr int32_t kBaseLen = sizeof(base_array) / sizeof(uint8_t);
   const uint8_t* base_ptr = base_array;

   JValue result;
   ShadowFrame* tmp = ShadowFrame::CreateDeoptimizedFrame(10, nullptr, nullptr, 0);

   for (int32_t i = 0; i < kBaseLen; ++i) {
     tmp->SetVRegLong(0, static_cast<int64_t>(reinterpret_cast<intptr_t>(base_ptr + i)));

     UnstartedMemoryPeekByte(self, tmp, &result, 0);

     EXPECT_EQ(result.GetB(), static_cast<int8_t>(base_array[i]));
   }

   ShadowFrame::DeleteDeoptimizedFrame(tmp);
 }

 TEST_F(UnstartedRuntimeTest, MemoryPeekShort) {
   Thread* self = Thread::Current();

   ScopedObjectAccess soa(self);
   constexpr const uint8_t base_array[] = "abcdefghijklmnop";
   constexpr int32_t kBaseLen = sizeof(base_array) / sizeof(uint8_t);
   const uint8_t* base_ptr = base_array;

   JValue result;
   ShadowFrame* tmp = ShadowFrame::CreateDeoptimizedFrame(10, nullptr, nullptr, 0);

   int32_t adjusted_length = kBaseLen - sizeof(int16_t);
   for (int32_t i = 0; i < adjusted_length; ++i) {
     tmp->SetVRegLong(0, static_cast<int64_t>(reinterpret_cast<intptr_t>(base_ptr + i)));

     UnstartedMemoryPeekShort(self, tmp, &result, 0);

     typedef int16_t unaligned_short __attribute__ ((aligned (1)));
     const unaligned_short* short_ptr = reinterpret_cast<const unaligned_short*>(base_ptr + i);
     EXPECT_EQ(result.GetS(), *short_ptr);
   }

   ShadowFrame::DeleteDeoptimizedFrame(tmp);
 }

 TEST_F(UnstartedRuntimeTest, MemoryPeekInt) {
   Thread* self = Thread::Current();

   ScopedObjectAccess soa(self);
   constexpr const uint8_t base_array[] = "abcdefghijklmnop";
   constexpr int32_t kBaseLen = sizeof(base_array) / sizeof(uint8_t);
   const uint8_t* base_ptr = base_array;

   JValue result;
   ShadowFrame* tmp = ShadowFrame::CreateDeoptimizedFrame(10, nullptr, nullptr, 0);

   int32_t adjusted_length = kBaseLen - sizeof(int32_t);
   for (int32_t i = 0; i < adjusted_length; ++i) {
     tmp->SetVRegLong(0, static_cast<int64_t>(reinterpret_cast<intptr_t>(base_ptr + i)));

     UnstartedMemoryPeekInt(self, tmp, &result, 0);

     typedef int32_t unaligned_int __attribute__ ((aligned (1)));
     const unaligned_int* int_ptr = reinterpret_cast<const unaligned_int*>(base_ptr + i);
     EXPECT_EQ(result.GetI(), *int_ptr);
   }

   ShadowFrame::DeleteDeoptimizedFrame(tmp);
 }

 TEST_F(UnstartedRuntimeTest, MemoryPeekLong) {
   Thread* self = Thread::Current();

   ScopedObjectAccess soa(self);
   constexpr const uint8_t base_array[] = "abcdefghijklmnop";
   constexpr int32_t kBaseLen = sizeof(base_array) / sizeof(uint8_t);
   const uint8_t* base_ptr = base_array;

   JValue result;
   ShadowFrame* tmp = ShadowFrame::CreateDeoptimizedFrame(10, nullptr, nullptr, 0);

   int32_t adjusted_length = kBaseLen - sizeof(int64_t);
   for (int32_t i = 0; i < adjusted_length; ++i) {
     tmp->SetVRegLong(0, static_cast<int64_t>(reinterpret_cast<intptr_t>(base_ptr + i)));

     UnstartedMemoryPeekLong(self, tmp, &result, 0);

     typedef int64_t unaligned_long __attribute__ ((aligned (1)));
     const unaligned_long* long_ptr = reinterpret_cast<const unaligned_long*>(base_ptr + i);
     EXPECT_EQ(result.GetJ(), *long_ptr);
   }

   ShadowFrame::DeleteDeoptimizedFrame(tmp);
 }

 TEST_F(UnstartedRuntimeTest, StringGetCharsNoCheck) {
   Thread* self = Thread::Current();

   ScopedObjectAccess soa(self);
   StackHandleScope<2> hs(self);
   // TODO: Actual UTF.
   constexpr const char base_string[] = "abcdefghijklmnop";
   Handle<mirror::String> h_test_string(hs.NewHandle(
       mirror::String::AllocFromModifiedUtf8(self, base_string)));
   constexpr int32_t kBaseLen = sizeof(base_string) / sizeof(char) - 1;
   Handle<mirror::CharArray> h_char_array(hs.NewHandle(
       mirror::CharArray::Alloc(self, kBaseLen)));
   // A buffer so we can make sure we only modify the elements targetted.
   uint16_t buf[kBaseLen];

   JValue result;
   ShadowFrame* tmp = ShadowFrame::CreateDeoptimizedFrame(10, nullptr, nullptr, 0);

   for (int32_t start_index = 0; start_index < kBaseLen; ++start_index) {
     for (int32_t count = 0; count <= kBaseLen; ++count) {
       for (int32_t trg_offset = 0; trg_offset < kBaseLen; ++trg_offset) {
         // Only do it when in bounds.
         if (start_index + count <= kBaseLen && trg_offset + count <= kBaseLen) {
           tmp->SetVRegReference(0, h_test_string.Get());
           tmp->SetVReg(1, start_index);
           tmp->SetVReg(2, count);
           tmp->SetVRegReference(3, h_char_array.Get());
           tmp->SetVReg(3, trg_offset);

           // Copy the char_array into buf.
           memcpy(buf, h_char_array->GetData(), kBaseLen * sizeof(uint16_t));

           UnstartedStringCharAt(self, tmp, &result, 0);

           uint16_t* data = h_char_array->GetData();

           bool success = true;

           // First segment should be unchanged.
           for (int32_t i = 0; i < trg_offset; ++i) {
             success = success && (data[i] == buf[i]);
           }
           // Second segment should be a copy.
           for (int32_t i = trg_offset; i < trg_offset + count; ++i) {
             success = success && (data[i] == buf[i - trg_offset + start_index]);
           }
           // Third segment should be unchanged.
           for (int32_t i = trg_offset + count; i < kBaseLen; ++i) {
             success = success && (data[i] == buf[i]);
           }

           EXPECT_TRUE(success);
         }
       }
     }
   }

   ShadowFrame::DeleteDeoptimizedFrame(tmp);
 }

 TEST_F(UnstartedRuntimeTest, StringCharAt) {
   Thread* self = Thread::Current();

   ScopedObjectAccess soa(self);
   // TODO: Actual UTF.
   constexpr const char* base_string = "abcdefghijklmnop";
   int32_t base_len = static_cast<int32_t>(strlen(base_string));
   mirror::String* test_string = mirror::String::AllocFromModifiedUtf8(self, base_string);

   JValue result;
   ShadowFrame* tmp = ShadowFrame::CreateDeoptimizedFrame(10, nullptr, nullptr, 0);

   for (int32_t i = 0; i < base_len; ++i) {
     tmp->SetVRegReference(0, test_string);
     tmp->SetVReg(1, i);

     UnstartedStringCharAt(self, tmp, &result, 0);

     EXPECT_EQ(result.GetI(), base_string[i]);
   }

   ShadowFrame::DeleteDeoptimizedFrame(tmp);
 }

 TEST_F(UnstartedRuntimeTest, StringInit) {
   Thread* self = Thread::Current();
   ScopedObjectAccess soa(self);
   mirror::Class* klass = mirror::String::GetJavaLangString();
   ArtMethod* method = klass->FindDeclaredDirectMethod("<init>", "(Ljava/lang/String;)V",
                                                       sizeof(void*));

   // create instruction data for invoke-direct {v0, v1} of method with fake index
   uint16_t inst_data[3] = { 0x2070, 0x0000, 0x0010 };
   const Instruction* inst = Instruction::At(inst_data);

   JValue result;
   ShadowFrame* shadow_frame = ShadowFrame::CreateDeoptimizedFrame(10, nullptr, method, 0);
   const char* base_string = "hello_world";
   mirror::String* string_arg = mirror::String::AllocFromModifiedUtf8(self, base_string);
   mirror::String* reference_empty_string = mirror::String::AllocFromModifiedUtf8(self, "");
   shadow_frame->SetVRegReference(0, reference_empty_string);
   shadow_frame->SetVRegReference(1, string_arg);

   interpreter::DoCall<false, false>(method, self, *shadow_frame, inst, inst_data[0], &result);
   mirror::String* string_result = reinterpret_cast<mirror::String*>(result.GetL());
   EXPECT_EQ(string_arg->GetLength(), string_result->GetLength());
   EXPECT_EQ(memcmp(string_arg->GetValue(), string_result->GetValue(),
                    string_arg->GetLength() * sizeof(uint16_t)), 0);

   ShadowFrame::DeleteDeoptimizedFrame(shadow_frame);
 }

 }  // namespace interpreter
 }  // namespace art
	/*
	* Copyright (C) 2015 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 "unstarted_runtime.h"

	#include "class_linker.h"
	#include "common_runtime_test.h"
	#include "dex_instruction.h"
	#include "handle.h"
	#include "handle_scope-inl.h"
	#include "interpreter/interpreter_common.h"
	#include "mirror/class_loader.h"
	#include "mirror/string-inl.h"
	#include "runtime.h"
	#include "scoped_thread_state_change.h"
	#include "thread.h"

	namespace art {
	namespace interpreter {

	class UnstartedRuntimeTest : public CommonRuntimeTest {
	protected:
	// Re-expose all UnstartedRuntime implementations so we don't need to declare a million
	// test friends.

	// Methods that intercept available libcore implementations.
	#define UNSTARTED_DIRECT(Name, SigIgnored) \
	static void Unstarted ## Name(Thread* self, \
	ShadowFrame* shadow_frame, \
	JValue* result, \
	size_t arg_offset) \
	SHARED_REQUIRES(Locks::mutator_lock_) { \
	interpreter::UnstartedRuntime::Unstarted ## Name(self, shadow_frame, result, arg_offset); \
	}
	#include "unstarted_runtime_list.h"
	UNSTARTED_RUNTIME_DIRECT_LIST(UNSTARTED_DIRECT)
	#undef UNSTARTED_RUNTIME_DIRECT_LIST
	#undef UNSTARTED_RUNTIME_JNI_LIST
	#undef UNSTARTED_DIRECT

	// Methods that are native.
	#define UNSTARTED_JNI(Name, SigIgnored) \
	static void UnstartedJNI ## Name(Thread* self, \
	ArtMethod* method, \
	mirror::Object* receiver, \
	uint32_t* args, \
	JValue* result) \
	SHARED_REQUIRES(Locks::mutator_lock_) { \
	interpreter::UnstartedRuntime::UnstartedJNI ## Name(self, method, receiver, args, result); \
	}
	#include "unstarted_runtime_list.h"
	UNSTARTED_RUNTIME_JNI_LIST(UNSTARTED_JNI)
	#undef UNSTARTED_RUNTIME_DIRECT_LIST
	#undef UNSTARTED_RUNTIME_JNI_LIST
	#undef UNSTARTED_JNI
	};

	TEST_F(UnstartedRuntimeTest, MemoryPeekByte) {
	Thread* self = Thread::Current();

	ScopedObjectAccess soa(self);
	constexpr const uint8_t base_array[] = "abcdefghijklmnop";
	constexpr int32_t kBaseLen = sizeof(base_array) / sizeof(uint8_t);
	const uint8_t* base_ptr = base_array;

	JValue result;
	ShadowFrame* tmp = ShadowFrame::CreateDeoptimizedFrame(10, nullptr, nullptr, 0);

	for (int32_t i = 0; i < kBaseLen; ++i) {
	tmp->SetVRegLong(0, static_cast<int64_t>(reinterpret_cast<intptr_t>(base_ptr + i)));

	UnstartedMemoryPeekByte(self, tmp, &result, 0);

	EXPECT_EQ(result.GetB(), static_cast<int8_t>(base_array[i]));
	}

	ShadowFrame::DeleteDeoptimizedFrame(tmp);
	}

	TEST_F(UnstartedRuntimeTest, MemoryPeekShort) {
	Thread* self = Thread::Current();

	ScopedObjectAccess soa(self);
	constexpr const uint8_t base_array[] = "abcdefghijklmnop";
	constexpr int32_t kBaseLen = sizeof(base_array) / sizeof(uint8_t);
	const uint8_t* base_ptr = base_array;

	JValue result;
	ShadowFrame* tmp = ShadowFrame::CreateDeoptimizedFrame(10, nullptr, nullptr, 0);

	int32_t adjusted_length = kBaseLen - sizeof(int16_t);
	for (int32_t i = 0; i < adjusted_length; ++i) {
	tmp->SetVRegLong(0, static_cast<int64_t>(reinterpret_cast<intptr_t>(base_ptr + i)));

	UnstartedMemoryPeekShort(self, tmp, &result, 0);

	typedef int16_t unaligned_short __attribute__ ((aligned (1)));
	const unaligned_short* short_ptr = reinterpret_cast<const unaligned_short*>(base_ptr + i);
	EXPECT_EQ(result.GetS(), *short_ptr);
	}

	ShadowFrame::DeleteDeoptimizedFrame(tmp);
	}

	TEST_F(UnstartedRuntimeTest, MemoryPeekInt) {
	Thread* self = Thread::Current();

	ScopedObjectAccess soa(self);
	constexpr const uint8_t base_array[] = "abcdefghijklmnop";
	constexpr int32_t kBaseLen = sizeof(base_array) / sizeof(uint8_t);
	const uint8_t* base_ptr = base_array;

	JValue result;
	ShadowFrame* tmp = ShadowFrame::CreateDeoptimizedFrame(10, nullptr, nullptr, 0);

	int32_t adjusted_length = kBaseLen - sizeof(int32_t);
	for (int32_t i = 0; i < adjusted_length; ++i) {
	tmp->SetVRegLong(0, static_cast<int64_t>(reinterpret_cast<intptr_t>(base_ptr + i)));

	UnstartedMemoryPeekInt(self, tmp, &result, 0);

	typedef int32_t unaligned_int __attribute__ ((aligned (1)));
	const unaligned_int* int_ptr = reinterpret_cast<const unaligned_int*>(base_ptr + i);
	EXPECT_EQ(result.GetI(), *int_ptr);
	}

	ShadowFrame::DeleteDeoptimizedFrame(tmp);
	}

	TEST_F(UnstartedRuntimeTest, MemoryPeekLong) {
	Thread* self = Thread::Current();

	ScopedObjectAccess soa(self);
	constexpr const uint8_t base_array[] = "abcdefghijklmnop";
	constexpr int32_t kBaseLen = sizeof(base_array) / sizeof(uint8_t);
	const uint8_t* base_ptr = base_array;

	JValue result;
	ShadowFrame* tmp = ShadowFrame::CreateDeoptimizedFrame(10, nullptr, nullptr, 0);

	int32_t adjusted_length = kBaseLen - sizeof(int64_t);
	for (int32_t i = 0; i < adjusted_length; ++i) {
	tmp->SetVRegLong(0, static_cast<int64_t>(reinterpret_cast<intptr_t>(base_ptr + i)));

	UnstartedMemoryPeekLong(self, tmp, &result, 0);

	typedef int64_t unaligned_long __attribute__ ((aligned (1)));
	const unaligned_long* long_ptr = reinterpret_cast<const unaligned_long*>(base_ptr + i);
	EXPECT_EQ(result.GetJ(), *long_ptr);
	}

	ShadowFrame::DeleteDeoptimizedFrame(tmp);
	}

	TEST_F(UnstartedRuntimeTest, StringGetCharsNoCheck) {
	Thread* self = Thread::Current();

	ScopedObjectAccess soa(self);
	StackHandleScope<2> hs(self);
	// TODO: Actual UTF.
	constexpr const char base_string[] = "abcdefghijklmnop";
	Handle<mirror::String> h_test_string(hs.NewHandle(
	mirror::String::AllocFromModifiedUtf8(self, base_string)));
	constexpr int32_t kBaseLen = sizeof(base_string) / sizeof(char) - 1;
	Handle<mirror::CharArray> h_char_array(hs.NewHandle(
	mirror::CharArray::Alloc(self, kBaseLen)));
	// A buffer so we can make sure we only modify the elements targetted.
	uint16_t buf[kBaseLen];

	JValue result;
	ShadowFrame* tmp = ShadowFrame::CreateDeoptimizedFrame(10, nullptr, nullptr, 0);

	for (int32_t start_index = 0; start_index < kBaseLen; ++start_index) {
	for (int32_t count = 0; count <= kBaseLen; ++count) {
	for (int32_t trg_offset = 0; trg_offset < kBaseLen; ++trg_offset) {
	// Only do it when in bounds.
	if (start_index + count <= kBaseLen && trg_offset + count <= kBaseLen) {
	tmp->SetVRegReference(0, h_test_string.Get());
	tmp->SetVReg(1, start_index);
	tmp->SetVReg(2, count);
	tmp->SetVRegReference(3, h_char_array.Get());
	tmp->SetVReg(3, trg_offset);

	// Copy the char_array into buf.
	memcpy(buf, h_char_array->GetData(), kBaseLen * sizeof(uint16_t));

	UnstartedStringCharAt(self, tmp, &result, 0);

	uint16_t* data = h_char_array->GetData();

	bool success = true;

	// First segment should be unchanged.
	for (int32_t i = 0; i < trg_offset; ++i) {
	success = success && (data[i] == buf[i]);
	}
	// Second segment should be a copy.
	for (int32_t i = trg_offset; i < trg_offset + count; ++i) {
	success = success && (data[i] == buf[i - trg_offset + start_index]);
	}
	// Third segment should be unchanged.
	for (int32_t i = trg_offset + count; i < kBaseLen; ++i) {
	success = success && (data[i] == buf[i]);
	}

	EXPECT_TRUE(success);
	}
	}
	}
	}

	ShadowFrame::DeleteDeoptimizedFrame(tmp);
	}

	TEST_F(UnstartedRuntimeTest, StringCharAt) {
	Thread* self = Thread::Current();

	ScopedObjectAccess soa(self);
	// TODO: Actual UTF.
	constexpr const char* base_string = "abcdefghijklmnop";
	int32_t base_len = static_cast<int32_t>(strlen(base_string));
	mirror::String* test_string = mirror::String::AllocFromModifiedUtf8(self, base_string);

	JValue result;
	ShadowFrame* tmp = ShadowFrame::CreateDeoptimizedFrame(10, nullptr, nullptr, 0);

	for (int32_t i = 0; i < base_len; ++i) {
	tmp->SetVRegReference(0, test_string);
	tmp->SetVReg(1, i);

	UnstartedStringCharAt(self, tmp, &result, 0);

	EXPECT_EQ(result.GetI(), base_string[i]);
	}

	ShadowFrame::DeleteDeoptimizedFrame(tmp);
	}

	TEST_F(UnstartedRuntimeTest, StringInit) {
	Thread* self = Thread::Current();
	ScopedObjectAccess soa(self);
	mirror::Class* klass = mirror::String::GetJavaLangString();
	ArtMethod* method = klass->FindDeclaredDirectMethod("<init>", "(Ljava/lang/String;)V",
	sizeof(void*));

	// create instruction data for invoke-direct {v0, v1} of method with fake index
	uint16_t inst_data[3] = { 0x2070, 0x0000, 0x0010 };
	const Instruction* inst = Instruction::At(inst_data);

	JValue result;
	ShadowFrame* shadow_frame = ShadowFrame::CreateDeoptimizedFrame(10, nullptr, method, 0);
	const char* base_string = "hello_world";
	mirror::String* string_arg = mirror::String::AllocFromModifiedUtf8(self, base_string);
	mirror::String* reference_empty_string = mirror::String::AllocFromModifiedUtf8(self, "");
	shadow_frame->SetVRegReference(0, reference_empty_string);
	shadow_frame->SetVRegReference(1, string_arg);

	interpreter::DoCall<false, false>(method, self, *shadow_frame, inst, inst_data[0], &result);
	mirror::String* string_result = reinterpret_cast<mirror::String*>(result.GetL());
	EXPECT_EQ(string_arg->GetLength(), string_result->GetLength());
	EXPECT_EQ(memcmp(string_arg->GetValue(), string_result->GetValue(),
	string_arg->GetLength() * sizeof(uint16_t)), 0);

	ShadowFrame::DeleteDeoptimizedFrame(shadow_frame);
	}

	} // namespace interpreter
	} // namespace art