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Diffstat (limited to 'compiler/elf_patcher.h')
| -rw-r--r-- | compiler/elf_patcher.h | 132 |
1 files changed, 0 insertions, 132 deletions
diff --git a/compiler/elf_patcher.h b/compiler/elf_patcher.h deleted file mode 100644 index 0a9f0a0..0000000 --- a/compiler/elf_patcher.h +++ /dev/null @@ -1,132 +0,0 @@ -/* - * 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. - */ - -#ifndef ART_COMPILER_ELF_PATCHER_H_ -#define ART_COMPILER_ELF_PATCHER_H_ - -#include "base/mutex.h" -#include "driver/compiler_driver.h" -#include "elf_file.h" -#include "mirror/art_method.h" -#include "mirror/class.h" -#include "mirror/object.h" -#include "oat_file.h" -#include "oat.h" -#include "os.h" - -namespace art { - -class ElfPatcher { - public: - typedef void* (*ImageAddressCallback)(void* data, mirror::Object* obj); - - static bool Patch(const CompilerDriver* driver, ElfFile* elf_file, - const std::string& oat_location, - ImageAddressCallback cb, void* cb_data, - std::string* error_msg) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - static bool Patch(const CompilerDriver* driver, ElfFile* elf_file, - const OatFile* oat_file, uintptr_t oat_data_begin, - ImageAddressCallback cb, void* cb_data, - std::string* error_msg) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - static bool Patch(const CompilerDriver* driver, ElfFile* elf_file, - const std::string& oat_location, - std::string* error_msg) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - return ElfPatcher::Patch(driver, elf_file, oat_location, - DefaultImageAddressCallback, nullptr, error_msg); - } - - static bool Patch(const CompilerDriver* driver, ElfFile* elf_file, - const OatFile* oat_file, uintptr_t oat_data_begin, - std::string* error_msg) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - return ElfPatcher::Patch(driver, elf_file, oat_file, oat_data_begin, - DefaultImageAddressCallback, nullptr, error_msg); - } - - private: - ElfPatcher(const CompilerDriver* driver, ElfFile* elf_file, const OatFile* oat_file, - OatHeader* oat_header, uintptr_t oat_data_begin, - ImageAddressCallback cb, void* cb_data, std::string* error_msg) - : compiler_driver_(driver), elf_file_(elf_file), oat_file_(oat_file), - oat_header_(oat_header), oat_data_begin_(oat_data_begin), get_image_address_(cb), - cb_data_(cb_data), error_msg_(error_msg), - write_patches_(compiler_driver_->GetCompilerOptions().GetIncludePatchInformation()) {} - ~ElfPatcher() {} - - static void* DefaultImageAddressCallback(void* data_unused, mirror::Object* obj) { - return static_cast<void*>(obj); - } - - bool PatchElf() - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - mirror::ArtMethod* GetTargetMethod(const CompilerDriver::CallPatchInformation* patch) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - mirror::Class* GetTargetType(const CompilerDriver::TypePatchInformation* patch) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - void AddPatch(uintptr_t off); - - void SetPatchLocation(const CompilerDriver::PatchInformation* patch, uint32_t value) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - // Takes the pointer into the oat_file_ and get the pointer in to the ElfFile. - uint32_t* GetPatchLocation(uintptr_t patch_ptr); - - bool WriteOutPatchData(); - - uintptr_t GetBaseAddressFor(const OatFile* f) { - if (f == oat_file_) { - return oat_data_begin_; - } else { - return reinterpret_cast<uintptr_t>(f->Begin()); - } - } - - const CompilerDriver* compiler_driver_; - - // The elf_file containing the oat_data we are patching up - ElfFile* elf_file_; - - // The oat_file that is actually loaded. - const OatFile* oat_file_; - - // The oat_header_ within the elf_file_ - OatHeader* oat_header_; - - // Where the elf_file will be loaded during normal runs. - uintptr_t oat_data_begin_; - - // Callback to get image addresses. - ImageAddressCallback get_image_address_; - void* cb_data_; - - std::string* error_msg_; - std::vector<uintptr_t> patches_; - std::set<uintptr_t> patches_set_; - bool write_patches_; - - DISALLOW_COPY_AND_ASSIGN(ElfPatcher); -}; - -} // namespace art -#endif // ART_COMPILER_ELF_PATCHER_H_ |