Elliott Hughes | 2faa5f1 | 2012-01-30 14:42:07 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
Brian Carlstrom | e24fa61 | 2011-09-29 00:53:55 -0700 | [diff] [blame] | 16 | |
| 17 | #include "oat_file.h" |
| 18 | |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 19 | #include <dlfcn.h> |
Andreas Gampe | 22f8e5c | 2014-07-09 11:38:21 -0700 | [diff] [blame] | 20 | #include <sstream> |
Calin Juravle | 4e1d579 | 2014-07-15 23:56:47 +0100 | [diff] [blame] | 21 | #include <string.h> |
Andreas Gampe | daab38c | 2014-09-12 18:38:24 -0700 | [diff] [blame] | 22 | #include <unistd.h> |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 23 | |
Brian Carlstrom | ba150c3 | 2013-08-27 17:31:03 -0700 | [diff] [blame] | 24 | #include "base/bit_vector.h" |
Elliott Hughes | 1aa246d | 2012-12-13 09:29:36 -0800 | [diff] [blame] | 25 | #include "base/stl_util.h" |
Elliott Hughes | 7616005 | 2012-12-12 16:31:20 -0800 | [diff] [blame] | 26 | #include "base/unix_file/fd_file.h" |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 27 | #include "elf_file.h" |
Alex Light | 84d7605 | 2014-08-22 17:49:35 -0700 | [diff] [blame] | 28 | #include "elf_utils.h" |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 29 | #include "oat.h" |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 30 | #include "mirror/art_method.h" |
| 31 | #include "mirror/art_method-inl.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 32 | #include "mirror/class.h" |
Ian Rogers | 4f6ad8a | 2013-03-18 15:27:28 -0700 | [diff] [blame] | 33 | #include "mirror/object-inl.h" |
Brian Carlstrom | e24fa61 | 2011-09-29 00:53:55 -0700 | [diff] [blame] | 34 | #include "os.h" |
Andreas Gampe | 22f8e5c | 2014-07-09 11:38:21 -0700 | [diff] [blame] | 35 | #include "runtime.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 36 | #include "utils.h" |
Ian Rogers | 1809a72 | 2013-08-09 22:05:32 -0700 | [diff] [blame] | 37 | #include "vmap_table.h" |
Brian Carlstrom | e24fa61 | 2011-09-29 00:53:55 -0700 | [diff] [blame] | 38 | |
| 39 | namespace art { |
| 40 | |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 41 | void OatFile::CheckLocation(const std::string& location) { |
Brian Carlstrom | 7a967b3 | 2012-03-28 15:23:10 -0700 | [diff] [blame] | 42 | CHECK(!location.empty()); |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 43 | } |
| 44 | |
Alex Light | 84d7605 | 2014-08-22 17:49:35 -0700 | [diff] [blame] | 45 | OatFile* OatFile::OpenWithElfFile(ElfFile* elf_file, |
| 46 | const std::string& location, |
| 47 | std::string* error_msg) { |
| 48 | std::unique_ptr<OatFile> oat_file(new OatFile(location, false)); |
| 49 | oat_file->elf_file_.reset(elf_file); |
Tong Shen | 62d1ca3 | 2014-09-03 17:24:56 -0700 | [diff] [blame] | 50 | uint64_t offset, size; |
| 51 | bool has_section = elf_file->GetSectionOffsetAndSize(".rodata", &offset, &size); |
| 52 | CHECK(has_section); |
| 53 | oat_file->begin_ = elf_file->Begin() + offset; |
| 54 | oat_file->end_ = elf_file->Begin() + size + offset; |
Alex Light | 84d7605 | 2014-08-22 17:49:35 -0700 | [diff] [blame] | 55 | return oat_file->Setup(error_msg) ? oat_file.release() : nullptr; |
| 56 | } |
| 57 | |
Brian Carlstrom | 265091e | 2013-01-30 14:08:26 -0800 | [diff] [blame] | 58 | OatFile* OatFile::OpenMemory(std::vector<uint8_t>& oat_contents, |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 59 | const std::string& location, |
| 60 | std::string* error_msg) { |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 61 | CHECK(!oat_contents.empty()) << location; |
| 62 | CheckLocation(location); |
Alex Light | 9dcc457 | 2014-08-14 14:16:26 -0700 | [diff] [blame] | 63 | std::unique_ptr<OatFile> oat_file(new OatFile(location, false)); |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 64 | oat_file->begin_ = &oat_contents[0]; |
| 65 | oat_file->end_ = &oat_contents[oat_contents.size()]; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 66 | return oat_file->Setup(error_msg) ? oat_file.release() : nullptr; |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 67 | } |
| 68 | |
| 69 | OatFile* OatFile::Open(const std::string& filename, |
| 70 | const std::string& location, |
Ian Rogers | 1373595 | 2014-10-08 12:43:28 -0700 | [diff] [blame] | 71 | uint8_t* requested_base, |
Igor Murashkin | 4677476 | 2014-10-22 11:37:02 -0700 | [diff] [blame] | 72 | uint8_t* oat_file_begin, |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 73 | bool executable, |
| 74 | std::string* error_msg) { |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 75 | CHECK(!filename.empty()) << location; |
Andreas Gampe | 7ba6496 | 2014-10-23 11:37:40 -0700 | [diff] [blame] | 76 | CheckLocation(location); |
Andreas Gampe | 22f8e5c | 2014-07-09 11:38:21 -0700 | [diff] [blame] | 77 | std::unique_ptr<OatFile> ret; |
| 78 | if (kUsePortableCompiler && executable) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 79 | // If we are using PORTABLE, use dlopen to deal with relocations. |
| 80 | // |
| 81 | // We use our own ELF loader for Quick to deal with legacy apps that |
| 82 | // open a generated dex file by name, remove the file, then open |
| 83 | // another generated dex file with the same name. http://b/10614658 |
Andreas Gampe | 22f8e5c | 2014-07-09 11:38:21 -0700 | [diff] [blame] | 84 | ret.reset(OpenDlopen(filename, location, requested_base, error_msg)); |
| 85 | } else { |
| 86 | // If we aren't trying to execute, we just use our own ElfFile loader for a couple reasons: |
| 87 | // |
| 88 | // On target, dlopen may fail when compiling due to selinux restrictions on installd. |
| 89 | // |
| 90 | // On host, dlopen is expected to fail when cross compiling, so fall back to OpenElfFile. |
| 91 | // This won't work for portable runtime execution because it doesn't process relocations. |
| 92 | std::unique_ptr<File> file(OS::OpenFileForReading(filename.c_str())); |
| 93 | if (file.get() == NULL) { |
| 94 | *error_msg = StringPrintf("Failed to open oat filename for reading: %s", strerror(errno)); |
| 95 | return nullptr; |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 96 | } |
Igor Murashkin | 4677476 | 2014-10-22 11:37:02 -0700 | [diff] [blame] | 97 | ret.reset(OpenElfFile(file.get(), location, requested_base, oat_file_begin, false, executable, |
| 98 | error_msg)); |
Andreas Gampe | daab38c | 2014-09-12 18:38:24 -0700 | [diff] [blame] | 99 | |
Andreas Gampe | 9ef2b6c | 2014-09-15 22:25:24 -0700 | [diff] [blame] | 100 | // It would be nice to unlink here. But we might have opened the file created by the |
| 101 | // ScopedLock, which we better not delete to avoid races. TODO: Investigate how to fix the API |
| 102 | // to allow removal when we know the ELF must be borked. |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 103 | } |
Dave Allison | 69dfe51 | 2014-07-11 17:11:58 +0000 | [diff] [blame] | 104 | return ret.release(); |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 105 | } |
| 106 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 107 | OatFile* OatFile::OpenWritable(File* file, const std::string& location, std::string* error_msg) { |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 108 | CheckLocation(location); |
Igor Murashkin | 4677476 | 2014-10-22 11:37:02 -0700 | [diff] [blame] | 109 | return OpenElfFile(file, location, nullptr, nullptr, true, false, error_msg); |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 110 | } |
| 111 | |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 112 | OatFile* OatFile::OpenReadable(File* file, const std::string& location, std::string* error_msg) { |
| 113 | CheckLocation(location); |
Igor Murashkin | 4677476 | 2014-10-22 11:37:02 -0700 | [diff] [blame] | 114 | return OpenElfFile(file, location, nullptr, nullptr, false, false, error_msg); |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 115 | } |
| 116 | |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 117 | OatFile* OatFile::OpenDlopen(const std::string& elf_filename, |
| 118 | const std::string& location, |
Ian Rogers | 1373595 | 2014-10-08 12:43:28 -0700 | [diff] [blame] | 119 | uint8_t* requested_base, |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 120 | std::string* error_msg) { |
Alex Light | 9dcc457 | 2014-08-14 14:16:26 -0700 | [diff] [blame] | 121 | std::unique_ptr<OatFile> oat_file(new OatFile(location, true)); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 122 | bool success = oat_file->Dlopen(elf_filename, requested_base, error_msg); |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 123 | if (!success) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 124 | return nullptr; |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 125 | } |
| 126 | return oat_file.release(); |
| 127 | } |
| 128 | |
| 129 | OatFile* OatFile::OpenElfFile(File* file, |
| 130 | const std::string& location, |
Ian Rogers | 1373595 | 2014-10-08 12:43:28 -0700 | [diff] [blame] | 131 | uint8_t* requested_base, |
Igor Murashkin | 4677476 | 2014-10-22 11:37:02 -0700 | [diff] [blame] | 132 | uint8_t* oat_file_begin, |
Brian Carlstrom | f1d3455 | 2013-07-12 20:22:23 -0700 | [diff] [blame] | 133 | bool writable, |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 134 | bool executable, |
| 135 | std::string* error_msg) { |
Alex Light | 9dcc457 | 2014-08-14 14:16:26 -0700 | [diff] [blame] | 136 | std::unique_ptr<OatFile> oat_file(new OatFile(location, executable)); |
Igor Murashkin | 4677476 | 2014-10-22 11:37:02 -0700 | [diff] [blame] | 137 | bool success = oat_file->ElfFileOpen(file, requested_base, oat_file_begin, writable, executable, |
| 138 | error_msg); |
Brian Carlstrom | e24fa61 | 2011-09-29 00:53:55 -0700 | [diff] [blame] | 139 | if (!success) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 140 | CHECK(!error_msg->empty()); |
| 141 | return nullptr; |
Brian Carlstrom | e24fa61 | 2011-09-29 00:53:55 -0700 | [diff] [blame] | 142 | } |
| 143 | return oat_file.release(); |
| 144 | } |
| 145 | |
Alex Light | 9dcc457 | 2014-08-14 14:16:26 -0700 | [diff] [blame] | 146 | OatFile::OatFile(const std::string& location, bool is_executable) |
| 147 | : location_(location), begin_(NULL), end_(NULL), is_executable_(is_executable), |
| 148 | dlopen_handle_(NULL), |
Vladimir Marko | 3f5838d | 2014-08-07 18:07:18 +0100 | [diff] [blame] | 149 | secondary_lookup_lock_("OatFile secondary lookup lock", kOatFileSecondaryLookupLock) { |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 150 | CHECK(!location_.empty()); |
| 151 | } |
Brian Carlstrom | e24fa61 | 2011-09-29 00:53:55 -0700 | [diff] [blame] | 152 | |
| 153 | OatFile::~OatFile() { |
Vladimir Marko | aa4497d | 2014-09-05 14:01:17 +0100 | [diff] [blame] | 154 | STLDeleteElements(&oat_dex_files_storage_); |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 155 | if (dlopen_handle_ != NULL) { |
| 156 | dlclose(dlopen_handle_); |
| 157 | } |
Brian Carlstrom | e24fa61 | 2011-09-29 00:53:55 -0700 | [diff] [blame] | 158 | } |
| 159 | |
Ian Rogers | 1373595 | 2014-10-08 12:43:28 -0700 | [diff] [blame] | 160 | bool OatFile::Dlopen(const std::string& elf_filename, uint8_t* requested_base, |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 161 | std::string* error_msg) { |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 162 | char* absolute_path = realpath(elf_filename.c_str(), NULL); |
| 163 | if (absolute_path == NULL) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 164 | *error_msg = StringPrintf("Failed to find absolute path for '%s'", elf_filename.c_str()); |
Brian Carlstrom | e24fa61 | 2011-09-29 00:53:55 -0700 | [diff] [blame] | 165 | return false; |
| 166 | } |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 167 | dlopen_handle_ = dlopen(absolute_path, RTLD_NOW); |
| 168 | free(absolute_path); |
| 169 | if (dlopen_handle_ == NULL) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 170 | *error_msg = StringPrintf("Failed to dlopen '%s': %s", elf_filename.c_str(), dlerror()); |
Brian Carlstrom | e24fa61 | 2011-09-29 00:53:55 -0700 | [diff] [blame] | 171 | return false; |
| 172 | } |
Ian Rogers | 1373595 | 2014-10-08 12:43:28 -0700 | [diff] [blame] | 173 | begin_ = reinterpret_cast<uint8_t*>(dlsym(dlopen_handle_, "oatdata")); |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 174 | if (begin_ == NULL) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 175 | *error_msg = StringPrintf("Failed to find oatdata symbol in '%s': %s", elf_filename.c_str(), |
| 176 | dlerror()); |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 177 | return false; |
Brian Carlstrom | e24fa61 | 2011-09-29 00:53:55 -0700 | [diff] [blame] | 178 | } |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 179 | if (requested_base != NULL && begin_ != requested_base) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 180 | *error_msg = StringPrintf("Failed to find oatdata symbol at expected address: " |
| 181 | "oatdata=%p != expected=%p /proc/self/maps:\n", |
| 182 | begin_, requested_base); |
| 183 | ReadFileToString("/proc/self/maps", error_msg); |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 184 | return false; |
| 185 | } |
Ian Rogers | 1373595 | 2014-10-08 12:43:28 -0700 | [diff] [blame] | 186 | end_ = reinterpret_cast<uint8_t*>(dlsym(dlopen_handle_, "oatlastword")); |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 187 | if (end_ == NULL) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 188 | *error_msg = StringPrintf("Failed to find oatlastword symbol in '%s': %s", elf_filename.c_str(), |
| 189 | dlerror()); |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 190 | return false; |
| 191 | } |
| 192 | // Readjust to be non-inclusive upper bound. |
| 193 | end_ += sizeof(uint32_t); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 194 | return Setup(error_msg); |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 195 | } |
Brian Carlstrom | e24fa61 | 2011-09-29 00:53:55 -0700 | [diff] [blame] | 196 | |
Igor Murashkin | 4677476 | 2014-10-22 11:37:02 -0700 | [diff] [blame] | 197 | bool OatFile::ElfFileOpen(File* file, uint8_t* requested_base, uint8_t* oat_file_begin, |
| 198 | bool writable, bool executable, |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 199 | std::string* error_msg) { |
Igor Murashkin | 4677476 | 2014-10-22 11:37:02 -0700 | [diff] [blame] | 200 | // TODO: rename requested_base to oat_data_begin |
| 201 | elf_file_.reset(ElfFile::Open(file, writable, /*program_header_only*/true, error_msg, |
| 202 | oat_file_begin)); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 203 | if (elf_file_.get() == nullptr) { |
| 204 | DCHECK(!error_msg->empty()); |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 205 | return false; |
| 206 | } |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 207 | bool loaded = elf_file_->Load(executable, error_msg); |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 208 | if (!loaded) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 209 | DCHECK(!error_msg->empty()); |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 210 | return false; |
| 211 | } |
| 212 | begin_ = elf_file_->FindDynamicSymbolAddress("oatdata"); |
| 213 | if (begin_ == NULL) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 214 | *error_msg = StringPrintf("Failed to find oatdata symbol in '%s'", file->GetPath().c_str()); |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 215 | return false; |
| 216 | } |
| 217 | if (requested_base != NULL && begin_ != requested_base) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 218 | *error_msg = StringPrintf("Failed to find oatdata symbol at expected address: " |
| 219 | "oatdata=%p != expected=%p /proc/self/maps:\n", |
| 220 | begin_, requested_base); |
| 221 | ReadFileToString("/proc/self/maps", error_msg); |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 222 | return false; |
| 223 | } |
| 224 | end_ = elf_file_->FindDynamicSymbolAddress("oatlastword"); |
| 225 | if (end_ == NULL) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 226 | *error_msg = StringPrintf("Failed to find oatlastword symbol in '%s'", file->GetPath().c_str()); |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 227 | return false; |
| 228 | } |
| 229 | // Readjust to be non-inclusive upper bound. |
| 230 | end_ += sizeof(uint32_t); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 231 | return Setup(error_msg); |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 232 | } |
Brian Carlstrom | 6e3b1d9 | 2012-01-11 01:36:32 -0800 | [diff] [blame] | 233 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 234 | bool OatFile::Setup(std::string* error_msg) { |
Brian Carlstrom | f1b3030 | 2013-03-28 10:35:32 -0700 | [diff] [blame] | 235 | if (!GetOatHeader().IsValid()) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 236 | *error_msg = StringPrintf("Invalid oat magic for '%s'", GetLocation().c_str()); |
Brian Carlstrom | f1b3030 | 2013-03-28 10:35:32 -0700 | [diff] [blame] | 237 | return false; |
| 238 | } |
Ian Rogers | 1373595 | 2014-10-08 12:43:28 -0700 | [diff] [blame] | 239 | const uint8_t* oat = Begin(); |
Brian Carlstrom | e24fa61 | 2011-09-29 00:53:55 -0700 | [diff] [blame] | 240 | oat += sizeof(OatHeader); |
Brian Carlstrom | fb331d7 | 2013-07-25 22:00:16 -0700 | [diff] [blame] | 241 | if (oat > End()) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 242 | *error_msg = StringPrintf("In oat file '%s' found truncated OatHeader", GetLocation().c_str()); |
Brian Carlstrom | fb331d7 | 2013-07-25 22:00:16 -0700 | [diff] [blame] | 243 | return false; |
| 244 | } |
Brian Carlstrom | 81f3ca1 | 2012-03-17 00:27:35 -0700 | [diff] [blame] | 245 | |
Andreas Gampe | 22f8e5c | 2014-07-09 11:38:21 -0700 | [diff] [blame] | 246 | oat += GetOatHeader().GetKeyValueStoreSize(); |
Brian Carlstrom | fb331d7 | 2013-07-25 22:00:16 -0700 | [diff] [blame] | 247 | if (oat > End()) { |
Andreas Gampe | 22f8e5c | 2014-07-09 11:38:21 -0700 | [diff] [blame] | 248 | *error_msg = StringPrintf("In oat file '%s' found truncated variable-size data: " |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 249 | "%p + %zd + %ud <= %p", GetLocation().c_str(), |
Andreas Gampe | 22f8e5c | 2014-07-09 11:38:21 -0700 | [diff] [blame] | 250 | Begin(), sizeof(OatHeader), GetOatHeader().GetKeyValueStoreSize(), |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 251 | End()); |
Brian Carlstrom | fb331d7 | 2013-07-25 22:00:16 -0700 | [diff] [blame] | 252 | return false; |
| 253 | } |
| 254 | |
Vladimir Marko | aa4497d | 2014-09-05 14:01:17 +0100 | [diff] [blame] | 255 | uint32_t dex_file_count = GetOatHeader().GetDexFileCount(); |
| 256 | oat_dex_files_storage_.reserve(dex_file_count); |
| 257 | for (size_t i = 0; i < dex_file_count; i++) { |
Dmitry Petrochenko | 83bef92 | 2014-02-03 12:34:59 +0700 | [diff] [blame] | 258 | uint32_t dex_file_location_size = *reinterpret_cast<const uint32_t*>(oat); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 259 | if (UNLIKELY(dex_file_location_size == 0U)) { |
| 260 | *error_msg = StringPrintf("In oat file '%s' found OatDexFile #%zd with empty location name", |
| 261 | GetLocation().c_str(), i); |
Brian Carlstrom | fb331d7 | 2013-07-25 22:00:16 -0700 | [diff] [blame] | 262 | return false; |
| 263 | } |
Brian Carlstrom | e24fa61 | 2011-09-29 00:53:55 -0700 | [diff] [blame] | 264 | oat += sizeof(dex_file_location_size); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 265 | if (UNLIKELY(oat > End())) { |
| 266 | *error_msg = StringPrintf("In oat file '%s' found OatDexFile #%zd truncated after dex file " |
| 267 | "location size", GetLocation().c_str(), i); |
Brian Carlstrom | fb331d7 | 2013-07-25 22:00:16 -0700 | [diff] [blame] | 268 | return false; |
| 269 | } |
Brian Carlstrom | e24fa61 | 2011-09-29 00:53:55 -0700 | [diff] [blame] | 270 | |
| 271 | const char* dex_file_location_data = reinterpret_cast<const char*>(oat); |
| 272 | oat += dex_file_location_size; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 273 | if (UNLIKELY(oat > End())) { |
| 274 | *error_msg = StringPrintf("In oat file '%s' found OatDexFile #%zd with truncated dex file " |
| 275 | "location", GetLocation().c_str(), i); |
Brian Carlstrom | fb331d7 | 2013-07-25 22:00:16 -0700 | [diff] [blame] | 276 | return false; |
| 277 | } |
Brian Carlstrom | e24fa61 | 2011-09-29 00:53:55 -0700 | [diff] [blame] | 278 | |
| 279 | std::string dex_file_location(dex_file_location_data, dex_file_location_size); |
| 280 | |
| 281 | uint32_t dex_file_checksum = *reinterpret_cast<const uint32_t*>(oat); |
| 282 | oat += sizeof(dex_file_checksum); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 283 | if (UNLIKELY(oat > End())) { |
| 284 | *error_msg = StringPrintf("In oat file '%s' found OatDexFile #%zd for '%s' truncated after " |
| 285 | "dex file checksum", GetLocation().c_str(), i, |
| 286 | dex_file_location.c_str()); |
Brian Carlstrom | fb331d7 | 2013-07-25 22:00:16 -0700 | [diff] [blame] | 287 | return false; |
| 288 | } |
Brian Carlstrom | e24fa61 | 2011-09-29 00:53:55 -0700 | [diff] [blame] | 289 | |
Brian Carlstrom | 8952189 | 2011-12-07 22:05:07 -0800 | [diff] [blame] | 290 | uint32_t dex_file_offset = *reinterpret_cast<const uint32_t*>(oat); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 291 | if (UNLIKELY(dex_file_offset == 0U)) { |
| 292 | *error_msg = StringPrintf("In oat file '%s' found OatDexFile #%zd for '%s' with zero dex " |
| 293 | "file offset", GetLocation().c_str(), i, dex_file_location.c_str()); |
Brian Carlstrom | fb331d7 | 2013-07-25 22:00:16 -0700 | [diff] [blame] | 294 | return false; |
| 295 | } |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 296 | if (UNLIKELY(dex_file_offset > Size())) { |
| 297 | *error_msg = StringPrintf("In oat file '%s' found OatDexFile #%zd for '%s' with dex file " |
| 298 | "offset %ud > %zd", GetLocation().c_str(), i, |
| 299 | dex_file_location.c_str(), dex_file_offset, Size()); |
Brian Carlstrom | fb331d7 | 2013-07-25 22:00:16 -0700 | [diff] [blame] | 300 | return false; |
| 301 | } |
Brian Carlstrom | 8952189 | 2011-12-07 22:05:07 -0800 | [diff] [blame] | 302 | oat += sizeof(dex_file_offset); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 303 | if (UNLIKELY(oat > End())) { |
| 304 | *error_msg = StringPrintf("In oat file '%s' found OatDexFile #%zd for '%s' truncated " |
Brian Carlstrom | 37628b7 | 2014-10-28 13:54:26 -0700 | [diff] [blame] | 305 | "after dex file offsets", GetLocation().c_str(), i, |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 306 | dex_file_location.c_str()); |
Brian Carlstrom | fb331d7 | 2013-07-25 22:00:16 -0700 | [diff] [blame] | 307 | return false; |
| 308 | } |
Brian Carlstrom | 8952189 | 2011-12-07 22:05:07 -0800 | [diff] [blame] | 309 | |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 310 | const uint8_t* dex_file_pointer = Begin() + dex_file_offset; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 311 | if (UNLIKELY(!DexFile::IsMagicValid(dex_file_pointer))) { |
| 312 | *error_msg = StringPrintf("In oat file '%s' found OatDexFile #%zd for '%s' with invalid " |
Brian Carlstrom | 37628b7 | 2014-10-28 13:54:26 -0700 | [diff] [blame] | 313 | "dex file magic '%s'", GetLocation().c_str(), i, |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 314 | dex_file_location.c_str(), dex_file_pointer); |
Brian Carlstrom | fb331d7 | 2013-07-25 22:00:16 -0700 | [diff] [blame] | 315 | return false; |
| 316 | } |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 317 | if (UNLIKELY(!DexFile::IsVersionValid(dex_file_pointer))) { |
| 318 | *error_msg = StringPrintf("In oat file '%s' found OatDexFile #%zd for '%s' with invalid " |
Brian Carlstrom | 37628b7 | 2014-10-28 13:54:26 -0700 | [diff] [blame] | 319 | "dex file version '%s'", GetLocation().c_str(), i, |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 320 | dex_file_location.c_str(), dex_file_pointer); |
Brian Carlstrom | fb331d7 | 2013-07-25 22:00:16 -0700 | [diff] [blame] | 321 | return false; |
| 322 | } |
Brian Carlstrom | 6e3b1d9 | 2012-01-11 01:36:32 -0800 | [diff] [blame] | 323 | const DexFile::Header* header = reinterpret_cast<const DexFile::Header*>(dex_file_pointer); |
| 324 | const uint32_t* methods_offsets_pointer = reinterpret_cast<const uint32_t*>(oat); |
Brian Carlstrom | 8952189 | 2011-12-07 22:05:07 -0800 | [diff] [blame] | 325 | |
Brian Carlstrom | 6e3b1d9 | 2012-01-11 01:36:32 -0800 | [diff] [blame] | 326 | oat += (sizeof(*methods_offsets_pointer) * header->class_defs_size_); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 327 | if (UNLIKELY(oat > End())) { |
| 328 | *error_msg = StringPrintf("In oat file '%s' found OatDexFile #%zd for '%s' with truncated " |
Brian Carlstrom | 37628b7 | 2014-10-28 13:54:26 -0700 | [diff] [blame] | 329 | "method offsets", GetLocation().c_str(), i, |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 330 | dex_file_location.c_str()); |
Brian Carlstrom | fb331d7 | 2013-07-25 22:00:16 -0700 | [diff] [blame] | 331 | return false; |
| 332 | } |
Brian Carlstrom | e24fa61 | 2011-09-29 00:53:55 -0700 | [diff] [blame] | 333 | |
Vladimir Marko | aa4497d | 2014-09-05 14:01:17 +0100 | [diff] [blame] | 334 | std::string canonical_location = DexFile::GetDexCanonicalLocation(dex_file_location.c_str()); |
| 335 | |
| 336 | // Create the OatDexFile and add it to the owning container. |
Vladimir Marko | 539690a | 2014-06-05 18:36:42 +0100 | [diff] [blame] | 337 | OatDexFile* oat_dex_file = new OatDexFile(this, |
| 338 | dex_file_location, |
Vladimir Marko | aa4497d | 2014-09-05 14:01:17 +0100 | [diff] [blame] | 339 | canonical_location, |
Vladimir Marko | 539690a | 2014-06-05 18:36:42 +0100 | [diff] [blame] | 340 | dex_file_checksum, |
| 341 | dex_file_pointer, |
| 342 | methods_offsets_pointer); |
Vladimir Marko | aa4497d | 2014-09-05 14:01:17 +0100 | [diff] [blame] | 343 | oat_dex_files_storage_.push_back(oat_dex_file); |
| 344 | |
| 345 | // Add the location and canonical location (if different) to the oat_dex_files_ table. |
Vladimir Marko | 3f5838d | 2014-08-07 18:07:18 +0100 | [diff] [blame] | 346 | StringPiece key(oat_dex_file->GetDexFileLocation()); |
Vladimir Marko | 539690a | 2014-06-05 18:36:42 +0100 | [diff] [blame] | 347 | oat_dex_files_.Put(key, oat_dex_file); |
Vladimir Marko | aa4497d | 2014-09-05 14:01:17 +0100 | [diff] [blame] | 348 | if (canonical_location != dex_file_location) { |
| 349 | StringPiece canonical_key(oat_dex_file->GetCanonicalDexFileLocation()); |
| 350 | oat_dex_files_.Put(canonical_key, oat_dex_file); |
| 351 | } |
Brian Carlstrom | e24fa61 | 2011-09-29 00:53:55 -0700 | [diff] [blame] | 352 | } |
Brian Carlstrom | f1b3030 | 2013-03-28 10:35:32 -0700 | [diff] [blame] | 353 | return true; |
Brian Carlstrom | e24fa61 | 2011-09-29 00:53:55 -0700 | [diff] [blame] | 354 | } |
| 355 | |
| 356 | const OatHeader& OatFile::GetOatHeader() const { |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 357 | return *reinterpret_cast<const OatHeader*>(Begin()); |
Brian Carlstrom | e24fa61 | 2011-09-29 00:53:55 -0700 | [diff] [blame] | 358 | } |
| 359 | |
Ian Rogers | 1373595 | 2014-10-08 12:43:28 -0700 | [diff] [blame] | 360 | const uint8_t* OatFile::Begin() const { |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 361 | CHECK(begin_ != NULL); |
| 362 | return begin_; |
Brian Carlstrom | e24fa61 | 2011-09-29 00:53:55 -0700 | [diff] [blame] | 363 | } |
| 364 | |
Ian Rogers | 1373595 | 2014-10-08 12:43:28 -0700 | [diff] [blame] | 365 | const uint8_t* OatFile::End() const { |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 366 | CHECK(end_ != NULL); |
| 367 | return end_; |
Brian Carlstrom | e24fa61 | 2011-09-29 00:53:55 -0700 | [diff] [blame] | 368 | } |
| 369 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 370 | const OatFile::OatDexFile* OatFile::GetOatDexFile(const char* dex_location, |
| 371 | const uint32_t* dex_location_checksum, |
Ian Rogers | 7fe2c69 | 2011-12-06 16:35:59 -0800 | [diff] [blame] | 372 | bool warn_if_not_found) const { |
Vladimir Marko | 3f5838d | 2014-08-07 18:07:18 +0100 | [diff] [blame] | 373 | // NOTE: We assume here that the canonical location for a given dex_location never |
| 374 | // changes. If it does (i.e. some symlink used by the filename changes) we may return |
| 375 | // an incorrect OatDexFile. As long as we have a checksum to check, we shall return |
| 376 | // an identical file or fail; otherwise we may see some unpredictable failures. |
Calin Juravle | 4e1d579 | 2014-07-15 23:56:47 +0100 | [diff] [blame] | 377 | |
Vladimir Marko | 3f5838d | 2014-08-07 18:07:18 +0100 | [diff] [blame] | 378 | // TODO: Additional analysis of usage patterns to see if this can be simplified |
| 379 | // without any performance loss, for example by not doing the first lock-free lookup. |
| 380 | |
| 381 | const OatFile::OatDexFile* oat_dex_file = nullptr; |
| 382 | StringPiece key(dex_location); |
| 383 | // Try to find the key cheaply in the oat_dex_files_ map which holds dex locations |
| 384 | // directly mentioned in the oat file and doesn't require locking. |
| 385 | auto primary_it = oat_dex_files_.find(key); |
| 386 | if (primary_it != oat_dex_files_.end()) { |
| 387 | oat_dex_file = primary_it->second; |
| 388 | DCHECK(oat_dex_file != nullptr); |
| 389 | } else { |
| 390 | // This dex_location is not one of the dex locations directly mentioned in the |
| 391 | // oat file. The correct lookup is via the canonical location but first see in |
| 392 | // the secondary_oat_dex_files_ whether we've looked up this location before. |
| 393 | MutexLock mu(Thread::Current(), secondary_lookup_lock_); |
| 394 | auto secondary_lb = secondary_oat_dex_files_.lower_bound(key); |
| 395 | if (secondary_lb != secondary_oat_dex_files_.end() && key == secondary_lb->first) { |
| 396 | oat_dex_file = secondary_lb->second; // May be nullptr. |
| 397 | } else { |
| 398 | // We haven't seen this dex_location before, we must check the canonical location. |
Vladimir Marko | 3f5838d | 2014-08-07 18:07:18 +0100 | [diff] [blame] | 399 | std::string dex_canonical_location = DexFile::GetDexCanonicalLocation(dex_location); |
Vladimir Marko | aa4497d | 2014-09-05 14:01:17 +0100 | [diff] [blame] | 400 | if (dex_canonical_location != dex_location) { |
| 401 | StringPiece canonical_key(dex_canonical_location); |
| 402 | auto canonical_it = oat_dex_files_.find(canonical_key); |
| 403 | if (canonical_it != oat_dex_files_.end()) { |
| 404 | oat_dex_file = canonical_it->second; |
| 405 | } // else keep nullptr. |
Vladimir Marko | 3f5838d | 2014-08-07 18:07:18 +0100 | [diff] [blame] | 406 | } // else keep nullptr. |
| 407 | |
| 408 | // Copy the key to the string_cache_ and store the result in secondary map. |
| 409 | string_cache_.emplace_back(key.data(), key.length()); |
| 410 | StringPiece key_copy(string_cache_.back()); |
| 411 | secondary_oat_dex_files_.PutBefore(secondary_lb, key_copy, oat_dex_file); |
Brian Carlstrom | 756ee4e | 2013-10-03 15:46:12 -0700 | [diff] [blame] | 412 | } |
| 413 | } |
Vladimir Marko | 3f5838d | 2014-08-07 18:07:18 +0100 | [diff] [blame] | 414 | if (oat_dex_file != nullptr && |
| 415 | (dex_location_checksum == nullptr || |
| 416 | oat_dex_file->GetDexFileLocationChecksum() == *dex_location_checksum)) { |
| 417 | return oat_dex_file; |
| 418 | } |
Brian Carlstrom | 756ee4e | 2013-10-03 15:46:12 -0700 | [diff] [blame] | 419 | |
| 420 | if (warn_if_not_found) { |
Vladimir Marko | 3f5838d | 2014-08-07 18:07:18 +0100 | [diff] [blame] | 421 | std::string dex_canonical_location = DexFile::GetDexCanonicalLocation(dex_location); |
Brian Carlstrom | 0d6adac | 2014-02-05 17:39:16 -0800 | [diff] [blame] | 422 | std::string checksum("<unspecified>"); |
| 423 | if (dex_location_checksum != NULL) { |
| 424 | checksum = StringPrintf("0x%08x", *dex_location_checksum); |
| 425 | } |
Brian Carlstrom | 756ee4e | 2013-10-03 15:46:12 -0700 | [diff] [blame] | 426 | LOG(WARNING) << "Failed to find OatDexFile for DexFile " << dex_location |
Calin Juravle | 4e1d579 | 2014-07-15 23:56:47 +0100 | [diff] [blame] | 427 | << " ( canonical path " << dex_canonical_location << ")" |
Brian Carlstrom | 0d6adac | 2014-02-05 17:39:16 -0800 | [diff] [blame] | 428 | << " with checksum " << checksum << " in OatFile " << GetLocation(); |
Brian Carlstrom | 756ee4e | 2013-10-03 15:46:12 -0700 | [diff] [blame] | 429 | if (kIsDebugBuild) { |
Vladimir Marko | aa4497d | 2014-09-05 14:01:17 +0100 | [diff] [blame] | 430 | for (const OatDexFile* odf : oat_dex_files_storage_) { |
Brian Carlstrom | 756ee4e | 2013-10-03 15:46:12 -0700 | [diff] [blame] | 431 | LOG(WARNING) << "OatFile " << GetLocation() |
Vladimir Marko | aa4497d | 2014-09-05 14:01:17 +0100 | [diff] [blame] | 432 | << " contains OatDexFile " << odf->GetDexFileLocation() |
| 433 | << " (canonical path " << odf->GetCanonicalDexFileLocation() << ")" |
| 434 | << " with checksum 0x" << std::hex << odf->GetDexFileLocationChecksum(); |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 435 | } |
Ian Rogers | 7fe2c69 | 2011-12-06 16:35:59 -0800 | [diff] [blame] | 436 | } |
Brian Carlstrom | e24fa61 | 2011-09-29 00:53:55 -0700 | [diff] [blame] | 437 | } |
Calin Juravle | 4e1d579 | 2014-07-15 23:56:47 +0100 | [diff] [blame] | 438 | |
Brian Carlstrom | 756ee4e | 2013-10-03 15:46:12 -0700 | [diff] [blame] | 439 | return NULL; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 440 | } |
| 441 | |
Brian Carlstrom | e24fa61 | 2011-09-29 00:53:55 -0700 | [diff] [blame] | 442 | OatFile::OatDexFile::OatDexFile(const OatFile* oat_file, |
Elliott Hughes | aa6a588 | 2012-01-13 19:39:16 -0800 | [diff] [blame] | 443 | const std::string& dex_file_location, |
Vladimir Marko | aa4497d | 2014-09-05 14:01:17 +0100 | [diff] [blame] | 444 | const std::string& canonical_dex_file_location, |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 445 | uint32_t dex_file_location_checksum, |
Ian Rogers | 1373595 | 2014-10-08 12:43:28 -0700 | [diff] [blame] | 446 | const uint8_t* dex_file_pointer, |
Brian Carlstrom | 0755ec5 | 2012-01-11 15:19:46 -0800 | [diff] [blame] | 447 | const uint32_t* oat_class_offsets_pointer) |
Brian Carlstrom | e24fa61 | 2011-09-29 00:53:55 -0700 | [diff] [blame] | 448 | : oat_file_(oat_file), |
| 449 | dex_file_location_(dex_file_location), |
Vladimir Marko | aa4497d | 2014-09-05 14:01:17 +0100 | [diff] [blame] | 450 | canonical_dex_file_location_(canonical_dex_file_location), |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 451 | dex_file_location_checksum_(dex_file_location_checksum), |
Brian Carlstrom | 8952189 | 2011-12-07 22:05:07 -0800 | [diff] [blame] | 452 | dex_file_pointer_(dex_file_pointer), |
Brian Carlstrom | 0755ec5 | 2012-01-11 15:19:46 -0800 | [diff] [blame] | 453 | oat_class_offsets_pointer_(oat_class_offsets_pointer) {} |
Brian Carlstrom | e24fa61 | 2011-09-29 00:53:55 -0700 | [diff] [blame] | 454 | |
| 455 | OatFile::OatDexFile::~OatDexFile() {} |
| 456 | |
Ian Rogers | 05f28c6 | 2012-10-23 18:12:13 -0700 | [diff] [blame] | 457 | size_t OatFile::OatDexFile::FileSize() const { |
| 458 | return reinterpret_cast<const DexFile::Header*>(dex_file_pointer_)->file_size_; |
| 459 | } |
| 460 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 461 | const DexFile* OatFile::OatDexFile::OpenDexFile(std::string* error_msg) const { |
Ian Rogers | 05f28c6 | 2012-10-23 18:12:13 -0700 | [diff] [blame] | 462 | return DexFile::Open(dex_file_pointer_, FileSize(), dex_file_location_, |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 463 | dex_file_location_checksum_, error_msg); |
Brian Carlstrom | 8952189 | 2011-12-07 22:05:07 -0800 | [diff] [blame] | 464 | } |
| 465 | |
Brian Carlstrom | 2cbaccb | 2014-09-14 20:34:17 -0700 | [diff] [blame] | 466 | uint32_t OatFile::OatDexFile::GetOatClassOffset(uint16_t class_def_index) const { |
| 467 | return oat_class_offsets_pointer_[class_def_index]; |
| 468 | } |
| 469 | |
Vladimir Marko | d3c5beb | 2014-04-11 16:32:51 +0100 | [diff] [blame] | 470 | OatFile::OatClass OatFile::OatDexFile::GetOatClass(uint16_t class_def_index) const { |
Brian Carlstrom | 2cbaccb | 2014-09-14 20:34:17 -0700 | [diff] [blame] | 471 | uint32_t oat_class_offset = GetOatClassOffset(class_def_index); |
Brian Carlstrom | 0755ec5 | 2012-01-11 15:19:46 -0800 | [diff] [blame] | 472 | |
Ian Rogers | 1373595 | 2014-10-08 12:43:28 -0700 | [diff] [blame] | 473 | const uint8_t* oat_class_pointer = oat_file_->Begin() + oat_class_offset; |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 474 | CHECK_LT(oat_class_pointer, oat_file_->End()) << oat_file_->GetLocation(); |
Brian Carlstrom | 0755ec5 | 2012-01-11 15:19:46 -0800 | [diff] [blame] | 475 | |
Ian Rogers | 1373595 | 2014-10-08 12:43:28 -0700 | [diff] [blame] | 476 | const uint8_t* status_pointer = oat_class_pointer; |
Brian Carlstrom | ba150c3 | 2013-08-27 17:31:03 -0700 | [diff] [blame] | 477 | CHECK_LT(status_pointer, oat_file_->End()) << oat_file_->GetLocation(); |
| 478 | mirror::Class::Status status = |
| 479 | static_cast<mirror::Class::Status>(*reinterpret_cast<const int16_t*>(status_pointer)); |
| 480 | CHECK_LT(status, mirror::Class::kStatusMax); |
| 481 | |
Ian Rogers | 1373595 | 2014-10-08 12:43:28 -0700 | [diff] [blame] | 482 | const uint8_t* type_pointer = status_pointer + sizeof(uint16_t); |
Brian Carlstrom | ba150c3 | 2013-08-27 17:31:03 -0700 | [diff] [blame] | 483 | CHECK_LT(type_pointer, oat_file_->End()) << oat_file_->GetLocation(); |
| 484 | OatClassType type = static_cast<OatClassType>(*reinterpret_cast<const uint16_t*>(type_pointer)); |
| 485 | CHECK_LT(type, kOatClassMax); |
| 486 | |
Ian Rogers | 1373595 | 2014-10-08 12:43:28 -0700 | [diff] [blame] | 487 | const uint8_t* after_type_pointer = type_pointer + sizeof(int16_t); |
Brian Carlstrom | cd937a9 | 2014-03-04 22:53:23 -0800 | [diff] [blame] | 488 | CHECK_LE(after_type_pointer, oat_file_->End()) << oat_file_->GetLocation(); |
Brian Carlstrom | ba150c3 | 2013-08-27 17:31:03 -0700 | [diff] [blame] | 489 | |
Brian Carlstrom | cd937a9 | 2014-03-04 22:53:23 -0800 | [diff] [blame] | 490 | uint32_t bitmap_size = 0; |
Ian Rogers | 1373595 | 2014-10-08 12:43:28 -0700 | [diff] [blame] | 491 | const uint8_t* bitmap_pointer = nullptr; |
| 492 | const uint8_t* methods_pointer = nullptr; |
Ian Rogers | 97b52f8 | 2014-08-14 11:34:07 -0700 | [diff] [blame] | 493 | if (type != kOatClassNoneCompiled) { |
| 494 | if (type == kOatClassSomeCompiled) { |
| 495 | bitmap_size = static_cast<uint32_t>(*reinterpret_cast<const uint32_t*>(after_type_pointer)); |
| 496 | bitmap_pointer = after_type_pointer + sizeof(bitmap_size); |
| 497 | CHECK_LE(bitmap_pointer, oat_file_->End()) << oat_file_->GetLocation(); |
| 498 | methods_pointer = bitmap_pointer + bitmap_size; |
| 499 | } else { |
| 500 | methods_pointer = after_type_pointer; |
| 501 | } |
| 502 | CHECK_LE(methods_pointer, oat_file_->End()) << oat_file_->GetLocation(); |
Brian Carlstrom | cd937a9 | 2014-03-04 22:53:23 -0800 | [diff] [blame] | 503 | } |
Brian Carlstrom | 0755ec5 | 2012-01-11 15:19:46 -0800 | [diff] [blame] | 504 | |
Vladimir Marko | d3c5beb | 2014-04-11 16:32:51 +0100 | [diff] [blame] | 505 | return OatClass(oat_file_, |
| 506 | status, |
| 507 | type, |
| 508 | bitmap_size, |
| 509 | reinterpret_cast<const uint32_t*>(bitmap_pointer), |
| 510 | reinterpret_cast<const OatMethodOffsets*>(methods_pointer)); |
Brian Carlstrom | e24fa61 | 2011-09-29 00:53:55 -0700 | [diff] [blame] | 511 | } |
| 512 | |
Brian Carlstrom | 0755ec5 | 2012-01-11 15:19:46 -0800 | [diff] [blame] | 513 | OatFile::OatClass::OatClass(const OatFile* oat_file, |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 514 | mirror::Class::Status status, |
Brian Carlstrom | ba150c3 | 2013-08-27 17:31:03 -0700 | [diff] [blame] | 515 | OatClassType type, |
| 516 | uint32_t bitmap_size, |
| 517 | const uint32_t* bitmap_pointer, |
Brian Carlstrom | 0755ec5 | 2012-01-11 15:19:46 -0800 | [diff] [blame] | 518 | const OatMethodOffsets* methods_pointer) |
Brian Carlstrom | ba150c3 | 2013-08-27 17:31:03 -0700 | [diff] [blame] | 519 | : oat_file_(oat_file), status_(status), type_(type), |
Vladimir Marko | d3c5beb | 2014-04-11 16:32:51 +0100 | [diff] [blame] | 520 | bitmap_(bitmap_pointer), methods_pointer_(methods_pointer) { |
Brian Carlstrom | ba150c3 | 2013-08-27 17:31:03 -0700 | [diff] [blame] | 521 | switch (type_) { |
| 522 | case kOatClassAllCompiled: { |
| 523 | CHECK_EQ(0U, bitmap_size); |
Brian Carlstrom | cd937a9 | 2014-03-04 22:53:23 -0800 | [diff] [blame] | 524 | CHECK(bitmap_pointer == nullptr); |
Ian Rogers | 97b52f8 | 2014-08-14 11:34:07 -0700 | [diff] [blame] | 525 | CHECK(methods_pointer != nullptr); |
Brian Carlstrom | ba150c3 | 2013-08-27 17:31:03 -0700 | [diff] [blame] | 526 | break; |
| 527 | } |
| 528 | case kOatClassSomeCompiled: { |
| 529 | CHECK_NE(0U, bitmap_size); |
Brian Carlstrom | cd937a9 | 2014-03-04 22:53:23 -0800 | [diff] [blame] | 530 | CHECK(bitmap_pointer != nullptr); |
Ian Rogers | 97b52f8 | 2014-08-14 11:34:07 -0700 | [diff] [blame] | 531 | CHECK(methods_pointer != nullptr); |
Brian Carlstrom | ba150c3 | 2013-08-27 17:31:03 -0700 | [diff] [blame] | 532 | break; |
| 533 | } |
| 534 | case kOatClassNoneCompiled: { |
| 535 | CHECK_EQ(0U, bitmap_size); |
Brian Carlstrom | cd937a9 | 2014-03-04 22:53:23 -0800 | [diff] [blame] | 536 | CHECK(bitmap_pointer == nullptr); |
Ian Rogers | 97b52f8 | 2014-08-14 11:34:07 -0700 | [diff] [blame] | 537 | CHECK(methods_pointer_ == nullptr); |
Brian Carlstrom | ba150c3 | 2013-08-27 17:31:03 -0700 | [diff] [blame] | 538 | break; |
| 539 | } |
| 540 | case kOatClassMax: { |
| 541 | LOG(FATAL) << "Invalid OatClassType " << type_; |
| 542 | break; |
| 543 | } |
| 544 | } |
| 545 | } |
Brian Carlstrom | e24fa61 | 2011-09-29 00:53:55 -0700 | [diff] [blame] | 546 | |
Brian Carlstrom | 2cbaccb | 2014-09-14 20:34:17 -0700 | [diff] [blame] | 547 | uint32_t OatFile::OatClass::GetOatMethodOffsetsOffset(uint32_t method_index) const { |
| 548 | const OatMethodOffsets* oat_method_offsets = GetOatMethodOffsets(method_index); |
| 549 | if (oat_method_offsets == nullptr) { |
| 550 | return 0u; |
| 551 | } |
| 552 | return reinterpret_cast<const uint8_t*>(oat_method_offsets) - oat_file_->Begin(); |
| 553 | } |
| 554 | |
| 555 | const OatMethodOffsets* OatFile::OatClass::GetOatMethodOffsets(uint32_t method_index) const { |
Vladimir Marko | d3c5beb | 2014-04-11 16:32:51 +0100 | [diff] [blame] | 556 | // NOTE: We don't keep the number of methods and cannot do a bounds check for method_index. |
Brian Carlstrom | 2cbaccb | 2014-09-14 20:34:17 -0700 | [diff] [blame] | 557 | if (methods_pointer_ == nullptr) { |
Brian Carlstrom | ba150c3 | 2013-08-27 17:31:03 -0700 | [diff] [blame] | 558 | CHECK_EQ(kOatClassNoneCompiled, type_); |
Brian Carlstrom | 2cbaccb | 2014-09-14 20:34:17 -0700 | [diff] [blame] | 559 | return nullptr; |
Brian Carlstrom | ba150c3 | 2013-08-27 17:31:03 -0700 | [diff] [blame] | 560 | } |
| 561 | size_t methods_pointer_index; |
Brian Carlstrom | 2cbaccb | 2014-09-14 20:34:17 -0700 | [diff] [blame] | 562 | if (bitmap_ == nullptr) { |
Brian Carlstrom | ba150c3 | 2013-08-27 17:31:03 -0700 | [diff] [blame] | 563 | CHECK_EQ(kOatClassAllCompiled, type_); |
| 564 | methods_pointer_index = method_index; |
| 565 | } else { |
| 566 | CHECK_EQ(kOatClassSomeCompiled, type_); |
Vladimir Marko | d3c5beb | 2014-04-11 16:32:51 +0100 | [diff] [blame] | 567 | if (!BitVector::IsBitSet(bitmap_, method_index)) { |
Brian Carlstrom | 2cbaccb | 2014-09-14 20:34:17 -0700 | [diff] [blame] | 568 | return nullptr; |
Brian Carlstrom | ba150c3 | 2013-08-27 17:31:03 -0700 | [diff] [blame] | 569 | } |
Vladimir Marko | d3c5beb | 2014-04-11 16:32:51 +0100 | [diff] [blame] | 570 | size_t num_set_bits = BitVector::NumSetBits(bitmap_, method_index); |
| 571 | methods_pointer_index = num_set_bits; |
Brian Carlstrom | ba150c3 | 2013-08-27 17:31:03 -0700 | [diff] [blame] | 572 | } |
| 573 | const OatMethodOffsets& oat_method_offsets = methods_pointer_[methods_pointer_index]; |
Brian Carlstrom | 2cbaccb | 2014-09-14 20:34:17 -0700 | [diff] [blame] | 574 | return &oat_method_offsets; |
| 575 | } |
| 576 | |
| 577 | const OatFile::OatMethod OatFile::OatClass::GetOatMethod(uint32_t method_index) const { |
| 578 | const OatMethodOffsets* oat_method_offsets = GetOatMethodOffsets(method_index); |
| 579 | if (oat_method_offsets == nullptr) { |
Mathieu Chartier | 957ca1c | 2014-11-21 16:51:29 -0800 | [diff] [blame^] | 580 | return OatMethod(nullptr, 0); |
Brian Carlstrom | 2cbaccb | 2014-09-14 20:34:17 -0700 | [diff] [blame] | 581 | } |
| 582 | if (oat_file_->IsExecutable() || |
| 583 | Runtime::Current() == nullptr || // This case applies for oatdump. |
| 584 | Runtime::Current()->IsCompiler()) { |
Mathieu Chartier | 957ca1c | 2014-11-21 16:51:29 -0800 | [diff] [blame^] | 585 | return OatMethod(oat_file_->Begin(), oat_method_offsets->code_offset_); |
Alex Light | 9dcc457 | 2014-08-14 14:16:26 -0700 | [diff] [blame] | 586 | } else { |
| 587 | // We aren't allowed to use the compiled code. We just force it down the interpreted version. |
Mathieu Chartier | 957ca1c | 2014-11-21 16:51:29 -0800 | [diff] [blame^] | 588 | return OatMethod(oat_file_->Begin(), 0); |
Alex Light | 9dcc457 | 2014-08-14 14:16:26 -0700 | [diff] [blame] | 589 | } |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 590 | } |
| 591 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 592 | void OatFile::OatMethod::LinkMethod(mirror::ArtMethod* method) const { |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 593 | CHECK(method != NULL); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 594 | method->SetEntryPointFromPortableCompiledCode(GetPortableCode()); |
| 595 | method->SetEntryPointFromQuickCompiledCode(GetQuickCode()); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 596 | } |
| 597 | |
Andreas Gampe | 7ba6496 | 2014-10-23 11:37:40 -0700 | [diff] [blame] | 598 | bool OatFile::IsPic() const { |
Igor Murashkin | 4677476 | 2014-10-22 11:37:02 -0700 | [diff] [blame] | 599 | return GetOatHeader().IsPic(); |
Andreas Gampe | 7ba6496 | 2014-10-23 11:37:40 -0700 | [diff] [blame] | 600 | // TODO: Check against oat_patches. b/18144996 |
| 601 | } |
| 602 | |
Brian Carlstrom | e24fa61 | 2011-09-29 00:53:55 -0700 | [diff] [blame] | 603 | } // namespace art |