compiler/compiled_method.cc - platform/art - Git at Google

 /*
  * Copyright (C) 2011 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 "compiled_method.h"
 #include "driver/compiler_driver.h"

 namespace art {

 CompiledCode::CompiledCode(CompilerDriver* compiler_driver, InstructionSet instruction_set,
                            const std::vector<uint8_t>& quick_code)
     : compiler_driver_(compiler_driver), instruction_set_(instruction_set),
       portable_code_(nullptr), quick_code_(nullptr) {
   SetCode(&quick_code, nullptr);
 }

 CompiledCode::CompiledCode(CompilerDriver* compiler_driver, InstructionSet instruction_set,
                            const std::string& elf_object, const std::string& symbol)
     : compiler_driver_(compiler_driver), instruction_set_(instruction_set),
       portable_code_(nullptr), quick_code_(nullptr), symbol_(symbol) {
   CHECK_NE(elf_object.size(), 0U);
   CHECK_NE(symbol.size(), 0U);
   std::vector<uint8_t> temp_code(elf_object.size());
   for (size_t i = 0; i < elf_object.size(); ++i) {
     temp_code[i] = elf_object[i];
   }
   // TODO: we shouldn't just shove ELF objects in as "code" but
   // change to have different kinds of compiled methods.  This is
   // being deferred until we work on hybrid execution or at least
   // until we work on batch compilation.
   SetCode(nullptr, &temp_code);
 }

 void CompiledCode::SetCode(const std::vector<uint8_t>* quick_code,
                            const std::vector<uint8_t>* portable_code) {
   if (portable_code != nullptr) {
     CHECK(!portable_code->empty());
     portable_code_ = compiler_driver_->DeduplicateCode(*portable_code);
   }
   if (quick_code != nullptr) {
     CHECK(!quick_code->empty());
     quick_code_ = compiler_driver_->DeduplicateCode(*quick_code);
   }
 }

 bool CompiledCode::operator==(const CompiledCode& rhs) const {
   if (quick_code_ != nullptr) {
     if (rhs.quick_code_ == nullptr) {
       return false;
     } else if (quick_code_->size() != rhs.quick_code_->size()) {
       return false;
     } else {
       return std::equal(quick_code_->begin(), quick_code_->end(), rhs.quick_code_->begin());
     }
   } else if (portable_code_ != nullptr) {
     if (rhs.portable_code_ == nullptr) {
       return false;
     } else if (portable_code_->size() != rhs.portable_code_->size()) {
       return false;
     } else {
       return std::equal(portable_code_->begin(), portable_code_->end(),
                         rhs.portable_code_->begin());
     }
   }
   return (rhs.quick_code_ == nullptr) && (rhs.portable_code_ == nullptr);
 }

 uint32_t CompiledCode::AlignCode(uint32_t offset) const {
   return AlignCode(offset, instruction_set_);
 }

 uint32_t CompiledCode::AlignCode(uint32_t offset, InstructionSet instruction_set) {
   return RoundUp(offset, GetInstructionSetAlignment(instruction_set));
 }

 size_t CompiledCode::CodeDelta() const {
   return CodeDelta(instruction_set_);
 }

 size_t CompiledCode::CodeDelta(InstructionSet instruction_set) {
   switch (instruction_set) {
     case kArm:
     case kArm64:
     case kMips:
     case kX86:
     case kX86_64:
       return 0;
     case kThumb2: {
       // +1 to set the low-order bit so a BLX will switch to Thumb mode
       return 1;
     }
     default:
       LOG(FATAL) << "Unknown InstructionSet: " << instruction_set;
       return 0;
   }
 }

 const void* CompiledCode::CodePointer(const void* code_pointer,
                                       InstructionSet instruction_set) {
   switch (instruction_set) {
     case kArm:
     case kArm64:
     case kMips:
     case kX86:
     case kX86_64:
       return code_pointer;
     case kThumb2: {
       uintptr_t address = reinterpret_cast<uintptr_t>(code_pointer);
       // Set the low-order bit so a BLX will switch to Thumb mode
       address |= 0x1;
       return reinterpret_cast<const void*>(address);
     }
     default:
       LOG(FATAL) << "Unknown InstructionSet: " << instruction_set;
       return NULL;
   }
 }

 const std::string& CompiledCode::GetSymbol() const {
   CHECK_NE(0U, symbol_.size());
   return symbol_;
 }

 const std::vector<uint32_t>& CompiledCode::GetOatdataOffsetsToCompliledCodeOffset() const {
   CHECK_NE(0U, oatdata_offsets_to_compiled_code_offset_.size()) << symbol_;
   return oatdata_offsets_to_compiled_code_offset_;
 }

 void CompiledCode::AddOatdataOffsetToCompliledCodeOffset(uint32_t offset) {
   oatdata_offsets_to_compiled_code_offset_.push_back(offset);
 }

 CompiledMethod::CompiledMethod(CompilerDriver* driver,
                                InstructionSet instruction_set,
                                const std::vector<uint8_t>& quick_code,
                                const size_t frame_size_in_bytes,
                                const uint32_t core_spill_mask,
                                const uint32_t fp_spill_mask,
                                const std::vector<uint8_t>& mapping_table,
                                const std::vector<uint8_t>& vmap_table,
                                const std::vector<uint8_t>& native_gc_map,
                                const std::vector<uint8_t>* cfi_info)
     : CompiledCode(driver, instruction_set, quick_code), frame_size_in_bytes_(frame_size_in_bytes),
       core_spill_mask_(core_spill_mask), fp_spill_mask_(fp_spill_mask),
   mapping_table_(driver->DeduplicateMappingTable(mapping_table)),
   vmap_table_(driver->DeduplicateVMapTable(vmap_table)),
   gc_map_(driver->DeduplicateGCMap(native_gc_map)),
   cfi_info_(driver->DeduplicateCFIInfo(cfi_info)) {
 }

 CompiledMethod::CompiledMethod(CompilerDriver* driver,
                                InstructionSet instruction_set,
                                const std::vector<uint8_t>& code,
                                const size_t frame_size_in_bytes,
                                const uint32_t core_spill_mask,
                                const uint32_t fp_spill_mask)
     : CompiledCode(driver, instruction_set, code),
       frame_size_in_bytes_(frame_size_in_bytes),
       core_spill_mask_(core_spill_mask), fp_spill_mask_(fp_spill_mask),
       mapping_table_(driver->DeduplicateMappingTable(std::vector<uint8_t>())),
       vmap_table_(driver->DeduplicateVMapTable(std::vector<uint8_t>())),
       gc_map_(driver->DeduplicateGCMap(std::vector<uint8_t>())),
       cfi_info_(nullptr) {
 }

 // Constructs a CompiledMethod for the Portable compiler.
 CompiledMethod::CompiledMethod(CompilerDriver* driver, InstructionSet instruction_set,
                                const std::string& code, const std::vector<uint8_t>& gc_map,
                                const std::string& symbol)
     : CompiledCode(driver, instruction_set, code, symbol),
       frame_size_in_bytes_(kStackAlignment), core_spill_mask_(0),
       fp_spill_mask_(0), gc_map_(driver->DeduplicateGCMap(gc_map)) {
   mapping_table_ = driver->DeduplicateMappingTable(std::vector<uint8_t>());
   vmap_table_ = driver->DeduplicateVMapTable(std::vector<uint8_t>());
 }

 CompiledMethod::CompiledMethod(CompilerDriver* driver, InstructionSet instruction_set,
                                const std::string& code, const std::string& symbol)
     : CompiledCode(driver, instruction_set, code, symbol),
       frame_size_in_bytes_(kStackAlignment), core_spill_mask_(0),
       fp_spill_mask_(0) {
   mapping_table_ = driver->DeduplicateMappingTable(std::vector<uint8_t>());
   vmap_table_ = driver->DeduplicateVMapTable(std::vector<uint8_t>());
   gc_map_ = driver->DeduplicateGCMap(std::vector<uint8_t>());
 }

 }  // namespace art
	/*
	* Copyright (C) 2011 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 "compiled_method.h"
	#include "driver/compiler_driver.h"

	namespace art {

	CompiledCode::CompiledCode(CompilerDriver* compiler_driver, InstructionSet instruction_set,
	const std::vector<uint8_t>& quick_code)
	: compiler_driver_(compiler_driver), instruction_set_(instruction_set),
	portable_code_(nullptr), quick_code_(nullptr) {
	SetCode(&quick_code, nullptr);
	}

	CompiledCode::CompiledCode(CompilerDriver* compiler_driver, InstructionSet instruction_set,
	const std::string& elf_object, const std::string& symbol)
	: compiler_driver_(compiler_driver), instruction_set_(instruction_set),
	portable_code_(nullptr), quick_code_(nullptr), symbol_(symbol) {
	CHECK_NE(elf_object.size(), 0U);
	CHECK_NE(symbol.size(), 0U);
	std::vector<uint8_t> temp_code(elf_object.size());
	for (size_t i = 0; i < elf_object.size(); ++i) {
	temp_code[i] = elf_object[i];
	}
	// TODO: we shouldn't just shove ELF objects in as "code" but
	// change to have different kinds of compiled methods. This is
	// being deferred until we work on hybrid execution or at least
	// until we work on batch compilation.
	SetCode(nullptr, &temp_code);
	}

	void CompiledCode::SetCode(const std::vector<uint8_t>* quick_code,
	const std::vector<uint8_t>* portable_code) {
	if (portable_code != nullptr) {
	CHECK(!portable_code->empty());
	portable_code_ = compiler_driver_->DeduplicateCode(*portable_code);
	}
	if (quick_code != nullptr) {
	CHECK(!quick_code->empty());
	quick_code_ = compiler_driver_->DeduplicateCode(*quick_code);
	}
	}

	bool CompiledCode::operator==(const CompiledCode& rhs) const {
	if (quick_code_ != nullptr) {
	if (rhs.quick_code_ == nullptr) {
	return false;
	} else if (quick_code_->size() != rhs.quick_code_->size()) {
	return false;
	} else {
	return std::equal(quick_code_->begin(), quick_code_->end(), rhs.quick_code_->begin());
	}
	} else if (portable_code_ != nullptr) {
	if (rhs.portable_code_ == nullptr) {
	return false;
	} else if (portable_code_->size() != rhs.portable_code_->size()) {
	return false;
	} else {
	return std::equal(portable_code_->begin(), portable_code_->end(),
	rhs.portable_code_->begin());
	}
	}
	return (rhs.quick_code_ == nullptr) && (rhs.portable_code_ == nullptr);
	}

	uint32_t CompiledCode::AlignCode(uint32_t offset) const {
	return AlignCode(offset, instruction_set_);
	}

	uint32_t CompiledCode::AlignCode(uint32_t offset, InstructionSet instruction_set) {
	return RoundUp(offset, GetInstructionSetAlignment(instruction_set));
	}

	size_t CompiledCode::CodeDelta() const {
	return CodeDelta(instruction_set_);
	}

	size_t CompiledCode::CodeDelta(InstructionSet instruction_set) {
	switch (instruction_set) {
	case kArm:
	case kArm64:
	case kMips:
	case kX86:
	case kX86_64:
	return 0;
	case kThumb2: {
	// +1 to set the low-order bit so a BLX will switch to Thumb mode
	return 1;
	}
	default:
	LOG(FATAL) << "Unknown InstructionSet: " << instruction_set;
	return 0;
	}
	}

	const void* CompiledCode::CodePointer(const void* code_pointer,
	InstructionSet instruction_set) {
	switch (instruction_set) {
	case kArm:
	case kArm64:
	case kMips:
	case kX86:
	case kX86_64:
	return code_pointer;
	case kThumb2: {
	uintptr_t address = reinterpret_cast<uintptr_t>(code_pointer);
	// Set the low-order bit so a BLX will switch to Thumb mode
	address \|= 0x1;
	return reinterpret_cast<const void*>(address);
	}
	default:
	LOG(FATAL) << "Unknown InstructionSet: " << instruction_set;
	return NULL;
	}
	}

	const std::string& CompiledCode::GetSymbol() const {
	CHECK_NE(0U, symbol_.size());
	return symbol_;
	}

	const std::vector<uint32_t>& CompiledCode::GetOatdataOffsetsToCompliledCodeOffset() const {
	CHECK_NE(0U, oatdata_offsets_to_compiled_code_offset_.size()) << symbol_;
	return oatdata_offsets_to_compiled_code_offset_;
	}

	void CompiledCode::AddOatdataOffsetToCompliledCodeOffset(uint32_t offset) {
	oatdata_offsets_to_compiled_code_offset_.push_back(offset);
	}

	CompiledMethod::CompiledMethod(CompilerDriver* driver,
	InstructionSet instruction_set,
	const std::vector<uint8_t>& quick_code,
	const size_t frame_size_in_bytes,
	const uint32_t core_spill_mask,
	const uint32_t fp_spill_mask,
	const std::vector<uint8_t>& mapping_table,
	const std::vector<uint8_t>& vmap_table,
	const std::vector<uint8_t>& native_gc_map,
	const std::vector<uint8_t>* cfi_info)
	: CompiledCode(driver, instruction_set, quick_code), frame_size_in_bytes_(frame_size_in_bytes),
	core_spill_mask_(core_spill_mask), fp_spill_mask_(fp_spill_mask),
	mapping_table_(driver->DeduplicateMappingTable(mapping_table)),
	vmap_table_(driver->DeduplicateVMapTable(vmap_table)),
	gc_map_(driver->DeduplicateGCMap(native_gc_map)),
	cfi_info_(driver->DeduplicateCFIInfo(cfi_info)) {
	}

	CompiledMethod::CompiledMethod(CompilerDriver* driver,
	InstructionSet instruction_set,
	const std::vector<uint8_t>& code,
	const size_t frame_size_in_bytes,
	const uint32_t core_spill_mask,
	const uint32_t fp_spill_mask)
	: CompiledCode(driver, instruction_set, code),
	frame_size_in_bytes_(frame_size_in_bytes),
	core_spill_mask_(core_spill_mask), fp_spill_mask_(fp_spill_mask),
	mapping_table_(driver->DeduplicateMappingTable(std::vector<uint8_t>())),
	vmap_table_(driver->DeduplicateVMapTable(std::vector<uint8_t>())),
	gc_map_(driver->DeduplicateGCMap(std::vector<uint8_t>())),
	cfi_info_(nullptr) {
	}

	// Constructs a CompiledMethod for the Portable compiler.
	CompiledMethod::CompiledMethod(CompilerDriver* driver, InstructionSet instruction_set,
	const std::string& code, const std::vector<uint8_t>& gc_map,
	const std::string& symbol)
	: CompiledCode(driver, instruction_set, code, symbol),
	frame_size_in_bytes_(kStackAlignment), core_spill_mask_(0),
	fp_spill_mask_(0), gc_map_(driver->DeduplicateGCMap(gc_map)) {
	mapping_table_ = driver->DeduplicateMappingTable(std::vector<uint8_t>());
	vmap_table_ = driver->DeduplicateVMapTable(std::vector<uint8_t>());
	}

	CompiledMethod::CompiledMethod(CompilerDriver* driver, InstructionSet instruction_set,
	const std::string& code, const std::string& symbol)
	: CompiledCode(driver, instruction_set, code, symbol),
	frame_size_in_bytes_(kStackAlignment), core_spill_mask_(0),
	fp_spill_mask_(0) {
	mapping_table_ = driver->DeduplicateMappingTable(std::vector<uint8_t>());
	vmap_table_ = driver->DeduplicateVMapTable(std::vector<uint8_t>());
	gc_map_ = driver->DeduplicateGCMap(std::vector<uint8_t>());
	}

	} // namespace art