runtime/oat.cc - platform/art - Gitiles

 /*
  * 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 "oat.h"
 #include "utils.h"

 #include <zlib.h>

 namespace art {

 const uint8_t OatHeader::kOatMagic[] = { 'o', 'a', 't', '\n' };
 const uint8_t OatHeader::kOatVersion[] = { '0', '0', '6', '\0' };

 OatHeader::OatHeader() {
   memset(this, 0, sizeof(*this));
 }

 OatHeader::OatHeader(InstructionSet instruction_set,
                      const std::vector<const DexFile*>* dex_files,
                      uint32_t image_file_location_oat_checksum,
                      uint32_t image_file_location_oat_data_begin,
                      const std::string& image_file_location) {
   memcpy(magic_, kOatMagic, sizeof(kOatMagic));
   memcpy(version_, kOatVersion, sizeof(kOatVersion));

   adler32_checksum_ = adler32(0L, Z_NULL, 0);

   CHECK_NE(instruction_set, kNone);
   instruction_set_ = instruction_set;
   UpdateChecksum(&instruction_set_, sizeof(instruction_set_));

   dex_file_count_ = dex_files->size();
   UpdateChecksum(&dex_file_count_, sizeof(dex_file_count_));

   image_file_location_oat_checksum_ = image_file_location_oat_checksum;
   UpdateChecksum(&image_file_location_oat_checksum_, sizeof(image_file_location_oat_checksum_));

   CHECK(IsAligned<kPageSize>(image_file_location_oat_data_begin));
   image_file_location_oat_data_begin_ = image_file_location_oat_data_begin;
   UpdateChecksum(&image_file_location_oat_data_begin_, sizeof(image_file_location_oat_data_begin_));

   image_file_location_size_ = image_file_location.size();
   UpdateChecksum(&image_file_location_size_, sizeof(image_file_location_size_));
   UpdateChecksum(image_file_location.data(), image_file_location_size_);

   executable_offset_ = 0;
   interpreter_to_interpreter_entry_offset_ = 0;
   interpreter_to_quick_entry_offset_ = 0;
   portable_resolution_trampoline_offset_ = 0;
   quick_resolution_trampoline_offset_ = 0;
 }

 bool OatHeader::IsValid() const {
   if (memcmp(magic_, kOatMagic, sizeof(kOatMagic)) != 0) {
     return false;
   }
   if (memcmp(version_, kOatVersion, sizeof(kOatVersion)) != 0) {
     return false;
   }
   return true;
 }

 const char* OatHeader::GetMagic() const {
   CHECK(IsValid());
   return reinterpret_cast<const char*>(magic_);
 }

 uint32_t OatHeader::GetChecksum() const {
   CHECK(IsValid());
   return adler32_checksum_;
 }

 void OatHeader::UpdateChecksum(const void* data, size_t length) {
   DCHECK(IsValid());
   const uint8_t* bytes = reinterpret_cast<const uint8_t*>(data);
   adler32_checksum_ = adler32(adler32_checksum_, bytes, length);
 }

 InstructionSet OatHeader::GetInstructionSet() const {
   CHECK(IsValid());
   return instruction_set_;
 }

 uint32_t OatHeader::GetExecutableOffset() const {
   DCHECK(IsValid());
   DCHECK_ALIGNED(executable_offset_, kPageSize);
   CHECK_GT(executable_offset_, sizeof(OatHeader));
   return executable_offset_;
 }

 void OatHeader::SetExecutableOffset(uint32_t executable_offset) {
   DCHECK_ALIGNED(executable_offset, kPageSize);
   CHECK_GT(executable_offset, sizeof(OatHeader));
   DCHECK(IsValid());
   DCHECK_EQ(executable_offset_, 0U);

   executable_offset_ = executable_offset;
   UpdateChecksum(&executable_offset_, sizeof(executable_offset));
 }

 const void* OatHeader::GetInterpreterToInterpreterEntry() const {
   return reinterpret_cast<const uint8_t*>(this) + GetInterpreterToInterpreterEntryOffset();
 }

 uint32_t OatHeader::GetInterpreterToInterpreterEntryOffset() const {
   DCHECK(IsValid());
   CHECK_GE(interpreter_to_interpreter_entry_offset_, executable_offset_);
   return interpreter_to_interpreter_entry_offset_;
 }

 void OatHeader::SetInterpreterToInterpreterEntryOffset(uint32_t offset) {
   CHECK(offset == 0 || offset >= executable_offset_);
   DCHECK(IsValid());
   DCHECK_EQ(interpreter_to_interpreter_entry_offset_, 0U) << offset;

   interpreter_to_interpreter_entry_offset_ = offset;
   UpdateChecksum(&interpreter_to_interpreter_entry_offset_, sizeof(offset));
 }

 const void* OatHeader::GetInterpreterToQuickEntry() const {
   return reinterpret_cast<const uint8_t*>(this) + GetInterpreterToQuickEntryOffset();
 }

 uint32_t OatHeader::GetInterpreterToQuickEntryOffset() const {
   DCHECK(IsValid());
   CHECK_GE(interpreter_to_quick_entry_offset_, interpreter_to_interpreter_entry_offset_);
   return interpreter_to_quick_entry_offset_;
 }

 void OatHeader::SetInterpreterToQuickEntryOffset(uint32_t offset) {
   CHECK(offset == 0 || offset >= interpreter_to_interpreter_entry_offset_);
   DCHECK(IsValid());
   DCHECK_EQ(interpreter_to_quick_entry_offset_, 0U) << offset;

   interpreter_to_quick_entry_offset_ = offset;
   UpdateChecksum(&interpreter_to_quick_entry_offset_, sizeof(offset));
 }

 const void* OatHeader::GetPortableResolutionTrampoline() const {
   return reinterpret_cast<const uint8_t*>(this) + GetPortableResolutionTrampolineOffset();
 }

 uint32_t OatHeader::GetPortableResolutionTrampolineOffset() const {
   DCHECK(IsValid());
   CHECK_GE(portable_resolution_trampoline_offset_, interpreter_to_quick_entry_offset_);
   return portable_resolution_trampoline_offset_;
 }

 void OatHeader::SetPortableResolutionTrampolineOffset(uint32_t offset) {
   CHECK(offset == 0 || offset >= interpreter_to_quick_entry_offset_);
   DCHECK(IsValid());
   DCHECK_EQ(portable_resolution_trampoline_offset_, 0U) << offset;

   portable_resolution_trampoline_offset_ = offset;
   UpdateChecksum(&portable_resolution_trampoline_offset_, sizeof(offset));
 }

 const void* OatHeader::GetQuickResolutionTrampoline() const {
   return reinterpret_cast<const uint8_t*>(this) + GetQuickResolutionTrampolineOffset();
 }

 uint32_t OatHeader::GetQuickResolutionTrampolineOffset() const {
   DCHECK(IsValid());
   CHECK_GE(quick_resolution_trampoline_offset_, portable_resolution_trampoline_offset_);
   return quick_resolution_trampoline_offset_;
 }

 void OatHeader::SetQuickResolutionTrampolineOffset(uint32_t offset) {
   CHECK(offset == 0 || offset >= portable_resolution_trampoline_offset_);
   DCHECK(IsValid());
   DCHECK_EQ(quick_resolution_trampoline_offset_, 0U) << offset;

   quick_resolution_trampoline_offset_ = offset;
   UpdateChecksum(&quick_resolution_trampoline_offset_, sizeof(offset));
 }

 uint32_t OatHeader::GetImageFileLocationOatChecksum() const {
   CHECK(IsValid());
   return image_file_location_oat_checksum_;
 }

 uint32_t OatHeader::GetImageFileLocationOatDataBegin() const {
   CHECK(IsValid());
   return image_file_location_oat_data_begin_;
 }

 uint32_t OatHeader::GetImageFileLocationSize() const {
   CHECK(IsValid());
   return image_file_location_size_;
 }

 const uint8_t* OatHeader::GetImageFileLocationData() const {
   CHECK(IsValid());
   return image_file_location_data_;
 }

 std::string OatHeader::GetImageFileLocation() const {
   CHECK(IsValid());
   return std::string(reinterpret_cast<const char*>(GetImageFileLocationData()),
                      GetImageFileLocationSize());
 }

 OatMethodOffsets::OatMethodOffsets()
   : code_offset_(0),
     frame_size_in_bytes_(0),
     core_spill_mask_(0),
     fp_spill_mask_(0),
     mapping_table_offset_(0),
     vmap_table_offset_(0),
     gc_map_offset_(0)
 {}

 OatMethodOffsets::OatMethodOffsets(uint32_t code_offset,
                                    uint32_t frame_size_in_bytes,
                                    uint32_t core_spill_mask,
                                    uint32_t fp_spill_mask,
                                    uint32_t mapping_table_offset,
                                    uint32_t vmap_table_offset,
                                    uint32_t gc_map_offset
                                    )
   : code_offset_(code_offset),
     frame_size_in_bytes_(frame_size_in_bytes),
     core_spill_mask_(core_spill_mask),
     fp_spill_mask_(fp_spill_mask),
     mapping_table_offset_(mapping_table_offset),
     vmap_table_offset_(vmap_table_offset),
     gc_map_offset_(gc_map_offset)
 {}

 OatMethodOffsets::~OatMethodOffsets() {}

 }  // 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 "oat.h"
	#include "utils.h"

	#include <zlib.h>

	namespace art {

	const uint8_t OatHeader::kOatMagic[] = { 'o', 'a', 't', '\n' };
	const uint8_t OatHeader::kOatVersion[] = { '0', '0', '6', '\0' };

	OatHeader::OatHeader() {
	memset(this, 0, sizeof(*this));
	}

	OatHeader::OatHeader(InstructionSet instruction_set,
	const std::vector<const DexFile> dex_files,
	uint32_t image_file_location_oat_checksum,
	uint32_t image_file_location_oat_data_begin,
	const std::string& image_file_location) {
	memcpy(magic_, kOatMagic, sizeof(kOatMagic));
	memcpy(version_, kOatVersion, sizeof(kOatVersion));

	adler32_checksum_ = adler32(0L, Z_NULL, 0);

	CHECK_NE(instruction_set, kNone);
	instruction_set_ = instruction_set;
	UpdateChecksum(&instruction_set_, sizeof(instruction_set_));

	dex_file_count_ = dex_files->size();
	UpdateChecksum(&dex_file_count_, sizeof(dex_file_count_));

	image_file_location_oat_checksum_ = image_file_location_oat_checksum;
	UpdateChecksum(&image_file_location_oat_checksum_, sizeof(image_file_location_oat_checksum_));

	CHECK(IsAligned<kPageSize>(image_file_location_oat_data_begin));
	image_file_location_oat_data_begin_ = image_file_location_oat_data_begin;
	UpdateChecksum(&image_file_location_oat_data_begin_, sizeof(image_file_location_oat_data_begin_));

	image_file_location_size_ = image_file_location.size();
	UpdateChecksum(&image_file_location_size_, sizeof(image_file_location_size_));
	UpdateChecksum(image_file_location.data(), image_file_location_size_);

	executable_offset_ = 0;
	interpreter_to_interpreter_entry_offset_ = 0;
	interpreter_to_quick_entry_offset_ = 0;
	portable_resolution_trampoline_offset_ = 0;
	quick_resolution_trampoline_offset_ = 0;
	}

	bool OatHeader::IsValid() const {
	if (memcmp(magic_, kOatMagic, sizeof(kOatMagic)) != 0) {
	return false;
	}
	if (memcmp(version_, kOatVersion, sizeof(kOatVersion)) != 0) {
	return false;
	}
	return true;
	}

	const char* OatHeader::GetMagic() const {
	CHECK(IsValid());
	return reinterpret_cast<const char*>(magic_);
	}

	uint32_t OatHeader::GetChecksum() const {
	CHECK(IsValid());
	return adler32_checksum_;
	}

	void OatHeader::UpdateChecksum(const void* data, size_t length) {
	DCHECK(IsValid());
	const uint8_t* bytes = reinterpret_cast<const uint8_t*>(data);
	adler32_checksum_ = adler32(adler32_checksum_, bytes, length);
	}

	InstructionSet OatHeader::GetInstructionSet() const {
	CHECK(IsValid());
	return instruction_set_;
	}

	uint32_t OatHeader::GetExecutableOffset() const {
	DCHECK(IsValid());
	DCHECK_ALIGNED(executable_offset_, kPageSize);
	CHECK_GT(executable_offset_, sizeof(OatHeader));
	return executable_offset_;
	}

	void OatHeader::SetExecutableOffset(uint32_t executable_offset) {
	DCHECK_ALIGNED(executable_offset, kPageSize);
	CHECK_GT(executable_offset, sizeof(OatHeader));
	DCHECK(IsValid());
	DCHECK_EQ(executable_offset_, 0U);

	executable_offset_ = executable_offset;
	UpdateChecksum(&executable_offset_, sizeof(executable_offset));
	}

	const void* OatHeader::GetInterpreterToInterpreterEntry() const {
	return reinterpret_cast<const uint8_t*>(this) + GetInterpreterToInterpreterEntryOffset();
	}

	uint32_t OatHeader::GetInterpreterToInterpreterEntryOffset() const {
	DCHECK(IsValid());
	CHECK_GE(interpreter_to_interpreter_entry_offset_, executable_offset_);
	return interpreter_to_interpreter_entry_offset_;
	}

	void OatHeader::SetInterpreterToInterpreterEntryOffset(uint32_t offset) {
	CHECK(offset == 0 \|\| offset >= executable_offset_);
	DCHECK(IsValid());
	DCHECK_EQ(interpreter_to_interpreter_entry_offset_, 0U) << offset;

	interpreter_to_interpreter_entry_offset_ = offset;
	UpdateChecksum(&interpreter_to_interpreter_entry_offset_, sizeof(offset));
	}

	const void* OatHeader::GetInterpreterToQuickEntry() const {
	return reinterpret_cast<const uint8_t*>(this) + GetInterpreterToQuickEntryOffset();
	}

	uint32_t OatHeader::GetInterpreterToQuickEntryOffset() const {
	DCHECK(IsValid());
	CHECK_GE(interpreter_to_quick_entry_offset_, interpreter_to_interpreter_entry_offset_);
	return interpreter_to_quick_entry_offset_;
	}

	void OatHeader::SetInterpreterToQuickEntryOffset(uint32_t offset) {
	CHECK(offset == 0 \|\| offset >= interpreter_to_interpreter_entry_offset_);
	DCHECK(IsValid());
	DCHECK_EQ(interpreter_to_quick_entry_offset_, 0U) << offset;

	interpreter_to_quick_entry_offset_ = offset;
	UpdateChecksum(&interpreter_to_quick_entry_offset_, sizeof(offset));
	}

	const void* OatHeader::GetPortableResolutionTrampoline() const {
	return reinterpret_cast<const uint8_t*>(this) + GetPortableResolutionTrampolineOffset();
	}

	uint32_t OatHeader::GetPortableResolutionTrampolineOffset() const {
	DCHECK(IsValid());
	CHECK_GE(portable_resolution_trampoline_offset_, interpreter_to_quick_entry_offset_);
	return portable_resolution_trampoline_offset_;
	}

	void OatHeader::SetPortableResolutionTrampolineOffset(uint32_t offset) {
	CHECK(offset == 0 \|\| offset >= interpreter_to_quick_entry_offset_);
	DCHECK(IsValid());
	DCHECK_EQ(portable_resolution_trampoline_offset_, 0U) << offset;

	portable_resolution_trampoline_offset_ = offset;
	UpdateChecksum(&portable_resolution_trampoline_offset_, sizeof(offset));
	}

	const void* OatHeader::GetQuickResolutionTrampoline() const {
	return reinterpret_cast<const uint8_t*>(this) + GetQuickResolutionTrampolineOffset();
	}

	uint32_t OatHeader::GetQuickResolutionTrampolineOffset() const {
	DCHECK(IsValid());
	CHECK_GE(quick_resolution_trampoline_offset_, portable_resolution_trampoline_offset_);
	return quick_resolution_trampoline_offset_;
	}

	void OatHeader::SetQuickResolutionTrampolineOffset(uint32_t offset) {
	CHECK(offset == 0 \|\| offset >= portable_resolution_trampoline_offset_);
	DCHECK(IsValid());
	DCHECK_EQ(quick_resolution_trampoline_offset_, 0U) << offset;

	quick_resolution_trampoline_offset_ = offset;
	UpdateChecksum(&quick_resolution_trampoline_offset_, sizeof(offset));
	}

	uint32_t OatHeader::GetImageFileLocationOatChecksum() const {
	CHECK(IsValid());
	return image_file_location_oat_checksum_;
	}

	uint32_t OatHeader::GetImageFileLocationOatDataBegin() const {
	CHECK(IsValid());
	return image_file_location_oat_data_begin_;
	}

	uint32_t OatHeader::GetImageFileLocationSize() const {
	CHECK(IsValid());
	return image_file_location_size_;
	}

	const uint8_t* OatHeader::GetImageFileLocationData() const {
	CHECK(IsValid());
	return image_file_location_data_;
	}

	std::string OatHeader::GetImageFileLocation() const {
	CHECK(IsValid());
	return std::string(reinterpret_cast<const char*>(GetImageFileLocationData()),
	GetImageFileLocationSize());
	}

	OatMethodOffsets::OatMethodOffsets()
	: code_offset_(0),
	frame_size_in_bytes_(0),
	core_spill_mask_(0),
	fp_spill_mask_(0),
	mapping_table_offset_(0),
	vmap_table_offset_(0),
	gc_map_offset_(0)
	{}

	OatMethodOffsets::OatMethodOffsets(uint32_t code_offset,
	uint32_t frame_size_in_bytes,
	uint32_t core_spill_mask,
	uint32_t fp_spill_mask,
	uint32_t mapping_table_offset,
	uint32_t vmap_table_offset,
	uint32_t gc_map_offset
	)
	: code_offset_(code_offset),
	frame_size_in_bytes_(frame_size_in_bytes),
	core_spill_mask_(core_spill_mask),
	fp_spill_mask_(fp_spill_mask),
	mapping_table_offset_(mapping_table_offset),
	vmap_table_offset_(vmap_table_offset),
	gc_map_offset_(gc_map_offset)
	{}

	OatMethodOffsets::~OatMethodOffsets() {}

	} // namespace art