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 ArrayRef<const uint8_t>& quick_code, bool owns_code_array)
     : compiler_driver_(compiler_driver), instruction_set_(instruction_set),
       owns_code_array_(owns_code_array), quick_code_(nullptr) {
   SetCode(&quick_code);
 }

 void CompiledCode::SetCode(const ArrayRef<const uint8_t>* quick_code) {
   if (quick_code != nullptr) {
     CHECK(!quick_code->empty());
     if (owns_code_array_) {
       // If we are supposed to own the code, don't deduplicate it.
       CHECK(quick_code_ == nullptr);
       quick_code_ = new SwapVector<uint8_t>(quick_code->begin(), quick_code->end(),
                                             compiler_driver_->GetSwapSpaceAllocator());
     } else {
       quick_code_ = compiler_driver_->DeduplicateCode(*quick_code);
     }
   }
 }

 CompiledCode::~CompiledCode() {
   if (owns_code_array_) {
     delete 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());
     }
   }
   return (rhs.quick_code_ == nullptr);
 }

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

 size_t CompiledCode::AlignCode(size_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 kMips64:
     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 kMips64:
     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 nullptr;
   }
 }

 const std::vector<uint32_t>& CompiledCode::GetOatdataOffsetsToCompliledCodeOffset() const {
   CHECK_NE(0U, oatdata_offsets_to_compiled_code_offset_.size());
   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 ArrayRef<const uint8_t>& quick_code,
                                const size_t frame_size_in_bytes,
                                const uint32_t core_spill_mask,
                                const uint32_t fp_spill_mask,
                                DefaultSrcMap* src_mapping_table,
                                const ArrayRef<const uint8_t>& mapping_table,
                                const ArrayRef<const uint8_t>& vmap_table,
                                const ArrayRef<const uint8_t>& native_gc_map,
                                const ArrayRef<const uint8_t>& cfi_info,
                                const ArrayRef<const LinkerPatch>& patches)
     : CompiledCode(driver, instruction_set, quick_code, !driver->DedupeEnabled()),
       owns_arrays_(!driver->DedupeEnabled()),
       frame_size_in_bytes_(frame_size_in_bytes), core_spill_mask_(core_spill_mask),
       fp_spill_mask_(fp_spill_mask),
       patches_(patches.begin(), patches.end(), driver->GetSwapSpaceAllocator()) {
   if (owns_arrays_) {
     if (src_mapping_table == nullptr) {
       src_mapping_table_ = new SwapSrcMap(driver->GetSwapSpaceAllocator());
     } else {
       src_mapping_table_ = new SwapSrcMap(src_mapping_table->begin(), src_mapping_table->end(),
                                           driver->GetSwapSpaceAllocator());
     }
     mapping_table_ = mapping_table.empty() ?
         nullptr : new SwapVector<uint8_t>(mapping_table.begin(), mapping_table.end(),
                                           driver->GetSwapSpaceAllocator());
     vmap_table_ = new SwapVector<uint8_t>(vmap_table.begin(), vmap_table.end(),
                                           driver->GetSwapSpaceAllocator());
     gc_map_ = native_gc_map.empty() ? nullptr :
         new SwapVector<uint8_t>(native_gc_map.begin(), native_gc_map.end(),
                                 driver->GetSwapSpaceAllocator());
     cfi_info_ = cfi_info.empty() ? nullptr :
         new SwapVector<uint8_t>(cfi_info.begin(), cfi_info.end(), driver->GetSwapSpaceAllocator());
   } else {
     src_mapping_table_ = src_mapping_table == nullptr ?
         driver->DeduplicateSrcMappingTable(ArrayRef<SrcMapElem>()) :
         driver->DeduplicateSrcMappingTable(ArrayRef<SrcMapElem>(*src_mapping_table));
     mapping_table_ = mapping_table.empty() ?
         nullptr : driver->DeduplicateMappingTable(mapping_table);
     vmap_table_ = driver->DeduplicateVMapTable(vmap_table);
     gc_map_ = native_gc_map.empty() ? nullptr : driver->DeduplicateGCMap(native_gc_map);
     cfi_info_ = cfi_info.empty() ? nullptr : driver->DeduplicateCFIInfo(cfi_info);
   }
 }

 CompiledMethod* CompiledMethod::SwapAllocCompiledMethod(
     CompilerDriver* driver,
     InstructionSet instruction_set,
     const ArrayRef<const uint8_t>& quick_code,
     const size_t frame_size_in_bytes,
     const uint32_t core_spill_mask,
     const uint32_t fp_spill_mask,
     DefaultSrcMap* src_mapping_table,
     const ArrayRef<const uint8_t>& mapping_table,
     const ArrayRef<const uint8_t>& vmap_table,
     const ArrayRef<const uint8_t>& native_gc_map,
     const ArrayRef<const uint8_t>& cfi_info,
     const ArrayRef<const LinkerPatch>& patches) {
   SwapAllocator<CompiledMethod> alloc(driver->GetSwapSpaceAllocator());
   CompiledMethod* ret = alloc.allocate(1);
   alloc.construct(ret, driver, instruction_set, quick_code, frame_size_in_bytes, core_spill_mask,
                   fp_spill_mask, src_mapping_table, mapping_table, vmap_table, native_gc_map,
                   cfi_info, patches);
   return ret;
 }


 void CompiledMethod::ReleaseSwapAllocatedCompiledMethod(CompilerDriver* driver, CompiledMethod* m) {
   SwapAllocator<CompiledMethod> alloc(driver->GetSwapSpaceAllocator());
   alloc.destroy(m);
   alloc.deallocate(m, 1);
 }

 CompiledMethod::~CompiledMethod() {
   if (owns_arrays_) {
     delete src_mapping_table_;
     delete mapping_table_;
     delete vmap_table_;
     delete gc_map_;
     delete cfi_info_;
   }
 }

 }  // 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 ArrayRef<const uint8_t>& quick_code, bool owns_code_array)
	: compiler_driver_(compiler_driver), instruction_set_(instruction_set),
	owns_code_array_(owns_code_array), quick_code_(nullptr) {
	SetCode(&quick_code);
	}

	void CompiledCode::SetCode(const ArrayRef<const uint8_t>* quick_code) {
	if (quick_code != nullptr) {
	CHECK(!quick_code->empty());
	if (owns_code_array_) {
	// If we are supposed to own the code, don't deduplicate it.
	CHECK(quick_code_ == nullptr);
	quick_code_ = new SwapVector<uint8_t>(quick_code->begin(), quick_code->end(),
	compiler_driver_->GetSwapSpaceAllocator());
	} else {
	quick_code_ = compiler_driver_->DeduplicateCode(*quick_code);
	}
	}
	}

	CompiledCode::~CompiledCode() {
	if (owns_code_array_) {
	delete 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());
	}
	}
	return (rhs.quick_code_ == nullptr);
	}

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

	size_t CompiledCode::AlignCode(size_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 kMips64:
	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 kMips64:
	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 nullptr;
	}
	}

	const std::vector<uint32_t>& CompiledCode::GetOatdataOffsetsToCompliledCodeOffset() const {
	CHECK_NE(0U, oatdata_offsets_to_compiled_code_offset_.size());
	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 ArrayRef<const uint8_t>& quick_code,
	const size_t frame_size_in_bytes,
	const uint32_t core_spill_mask,
	const uint32_t fp_spill_mask,
	DefaultSrcMap* src_mapping_table,
	const ArrayRef<const uint8_t>& mapping_table,
	const ArrayRef<const uint8_t>& vmap_table,
	const ArrayRef<const uint8_t>& native_gc_map,
	const ArrayRef<const uint8_t>& cfi_info,
	const ArrayRef<const LinkerPatch>& patches)
	: CompiledCode(driver, instruction_set, quick_code, !driver->DedupeEnabled()),
	owns_arrays_(!driver->DedupeEnabled()),
	frame_size_in_bytes_(frame_size_in_bytes), core_spill_mask_(core_spill_mask),
	fp_spill_mask_(fp_spill_mask),
	patches_(patches.begin(), patches.end(), driver->GetSwapSpaceAllocator()) {
	if (owns_arrays_) {
	if (src_mapping_table == nullptr) {
	src_mapping_table_ = new SwapSrcMap(driver->GetSwapSpaceAllocator());
	} else {
	src_mapping_table_ = new SwapSrcMap(src_mapping_table->begin(), src_mapping_table->end(),
	driver->GetSwapSpaceAllocator());
	}
	mapping_table_ = mapping_table.empty() ?
	nullptr : new SwapVector<uint8_t>(mapping_table.begin(), mapping_table.end(),
	driver->GetSwapSpaceAllocator());
	vmap_table_ = new SwapVector<uint8_t>(vmap_table.begin(), vmap_table.end(),
	driver->GetSwapSpaceAllocator());
	gc_map_ = native_gc_map.empty() ? nullptr :
	new SwapVector<uint8_t>(native_gc_map.begin(), native_gc_map.end(),
	driver->GetSwapSpaceAllocator());
	cfi_info_ = cfi_info.empty() ? nullptr :
	new SwapVector<uint8_t>(cfi_info.begin(), cfi_info.end(), driver->GetSwapSpaceAllocator());
	} else {
	src_mapping_table_ = src_mapping_table == nullptr ?
	driver->DeduplicateSrcMappingTable(ArrayRef<SrcMapElem>()) :
	driver->DeduplicateSrcMappingTable(ArrayRef<SrcMapElem>(*src_mapping_table));
	mapping_table_ = mapping_table.empty() ?
	nullptr : driver->DeduplicateMappingTable(mapping_table);
	vmap_table_ = driver->DeduplicateVMapTable(vmap_table);
	gc_map_ = native_gc_map.empty() ? nullptr : driver->DeduplicateGCMap(native_gc_map);
	cfi_info_ = cfi_info.empty() ? nullptr : driver->DeduplicateCFIInfo(cfi_info);
	}
	}

	CompiledMethod* CompiledMethod::SwapAllocCompiledMethod(
	CompilerDriver* driver,
	InstructionSet instruction_set,
	const ArrayRef<const uint8_t>& quick_code,
	const size_t frame_size_in_bytes,
	const uint32_t core_spill_mask,
	const uint32_t fp_spill_mask,
	DefaultSrcMap* src_mapping_table,
	const ArrayRef<const uint8_t>& mapping_table,
	const ArrayRef<const uint8_t>& vmap_table,
	const ArrayRef<const uint8_t>& native_gc_map,
	const ArrayRef<const uint8_t>& cfi_info,
	const ArrayRef<const LinkerPatch>& patches) {
	SwapAllocator<CompiledMethod> alloc(driver->GetSwapSpaceAllocator());
	CompiledMethod* ret = alloc.allocate(1);
	alloc.construct(ret, driver, instruction_set, quick_code, frame_size_in_bytes, core_spill_mask,
	fp_spill_mask, src_mapping_table, mapping_table, vmap_table, native_gc_map,
	cfi_info, patches);
	return ret;
	}



	void CompiledMethod::ReleaseSwapAllocatedCompiledMethod(CompilerDriver* driver, CompiledMethod* m) {
	SwapAllocator<CompiledMethod> alloc(driver->GetSwapSpaceAllocator());
	alloc.destroy(m);
	alloc.deallocate(m, 1);
	}

	CompiledMethod::~CompiledMethod() {
	if (owns_arrays_) {
	delete src_mapping_table_;
	delete mapping_table_;
	delete vmap_table_;
	delete gc_map_;
	delete cfi_info_;
	}
	}

	} // namespace art