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 | */ |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 16 | |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 17 | #include "dex_file.h" |
Brian Carlstrom | 7e49dca | 2011-07-22 18:07:34 -0700 | [diff] [blame] | 18 | |
| 19 | #include <fcntl.h> |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 20 | #include <limits.h> |
Brian Carlstrom | b0460ea | 2011-07-29 10:08:05 -0700 | [diff] [blame] | 21 | #include <stdio.h> |
Ian Rogers | d81871c | 2011-10-03 13:57:23 -0700 | [diff] [blame] | 22 | #include <stdlib.h> |
Brian Carlstrom | 7e49dca | 2011-07-22 18:07:34 -0700 | [diff] [blame] | 23 | #include <string.h> |
Brian Carlstrom | b0460ea | 2011-07-29 10:08:05 -0700 | [diff] [blame] | 24 | #include <sys/file.h> |
Brian Carlstrom | 7e49dca | 2011-07-22 18:07:34 -0700 | [diff] [blame] | 25 | #include <sys/stat.h> |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 26 | #include <memory> |
Brian Carlstrom | 7e49dca | 2011-07-22 18:07:34 -0700 | [diff] [blame] | 27 | |
Elliott Hughes | 07ed66b | 2012-12-12 18:34:25 -0800 | [diff] [blame] | 28 | #include "base/logging.h" |
Elliott Hughes | e222ee0 | 2012-12-13 14:41:43 -0800 | [diff] [blame] | 29 | #include "base/stringprintf.h" |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 30 | #include "class_linker.h" |
Ian Rogers | 4f6ad8a | 2013-03-18 15:27:28 -0700 | [diff] [blame] | 31 | #include "dex_file-inl.h" |
jeffhao | 10037c8 | 2012-01-23 15:06:23 -0800 | [diff] [blame] | 32 | #include "dex_file_verifier.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 33 | #include "globals.h" |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 34 | #include "leb128.h" |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 35 | #include "mirror/art_field-inl.h" |
| 36 | #include "mirror/art_method-inl.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 37 | #include "mirror/string.h" |
Brian Carlstrom | db4d540 | 2011-08-09 12:18:28 -0700 | [diff] [blame] | 38 | #include "os.h" |
Elliott Hughes | a0e1806 | 2012-04-13 15:59:59 -0700 | [diff] [blame] | 39 | #include "safe_map.h" |
Vladimir Marko | fd99576 | 2013-11-06 16:36:36 +0000 | [diff] [blame] | 40 | #include "ScopedFd.h" |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 41 | #include "handle_scope-inl.h" |
Brian Carlstrom | b0460ea | 2011-07-29 10:08:05 -0700 | [diff] [blame] | 42 | #include "thread.h" |
Ian Rogers | a672490 | 2013-09-23 09:23:37 -0700 | [diff] [blame] | 43 | #include "utf-inl.h" |
Brian Carlstrom | 7e49dca | 2011-07-22 18:07:34 -0700 | [diff] [blame] | 44 | #include "utils.h" |
Elliott Hughes | eac7667 | 2012-05-24 21:56:51 -0700 | [diff] [blame] | 45 | #include "well_known_classes.h" |
Brian Carlstrom | b0460ea | 2011-07-29 10:08:05 -0700 | [diff] [blame] | 46 | #include "zip_archive.h" |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 47 | |
| 48 | namespace art { |
| 49 | |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 50 | const byte DexFile::kDexMagic[] = { 'd', 'e', 'x', '\n' }; |
| 51 | const byte DexFile::kDexMagicVersion[] = { '0', '3', '5', '\0' }; |
Brian Carlstrom | 7e49dca | 2011-07-22 18:07:34 -0700 | [diff] [blame] | 52 | |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 53 | DexFile::ClassPathEntry DexFile::FindInClassPath(const char* descriptor, |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 54 | const ClassPath& class_path) { |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 55 | for (size_t i = 0; i != class_path.size(); ++i) { |
| 56 | const DexFile* dex_file = class_path[i]; |
| 57 | const DexFile::ClassDef* dex_class_def = dex_file->FindClassDef(descriptor); |
| 58 | if (dex_class_def != NULL) { |
| 59 | return ClassPathEntry(dex_file, dex_class_def); |
| 60 | } |
| 61 | } |
Brian Carlstrom | 4a289ed | 2011-08-16 17:17:49 -0700 | [diff] [blame] | 62 | // TODO: remove reinterpret_cast when issue with -std=gnu++0x host issue resolved |
Brian Carlstrom | 7e93b50 | 2011-08-04 14:16:22 -0700 | [diff] [blame] | 63 | return ClassPathEntry(reinterpret_cast<const DexFile*>(NULL), |
| 64 | reinterpret_cast<const DexFile::ClassDef*>(NULL)); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 65 | } |
| 66 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 67 | static int OpenAndReadMagic(const char* filename, uint32_t* magic, std::string* error_msg) { |
Brian Carlstrom | 7c3d13a | 2013-09-04 17:15:11 -0700 | [diff] [blame] | 68 | CHECK(magic != NULL); |
Vladimir Marko | fd99576 | 2013-11-06 16:36:36 +0000 | [diff] [blame] | 69 | ScopedFd fd(open(filename, O_RDONLY, 0)); |
| 70 | if (fd.get() == -1) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 71 | *error_msg = StringPrintf("Unable to open '%s' : %s", filename, strerror(errno)); |
Brian Carlstrom | 7c3d13a | 2013-09-04 17:15:11 -0700 | [diff] [blame] | 72 | return -1; |
| 73 | } |
Vladimir Marko | fd99576 | 2013-11-06 16:36:36 +0000 | [diff] [blame] | 74 | int n = TEMP_FAILURE_RETRY(read(fd.get(), magic, sizeof(*magic))); |
Brian Carlstrom | 7c3d13a | 2013-09-04 17:15:11 -0700 | [diff] [blame] | 75 | if (n != sizeof(*magic)) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 76 | *error_msg = StringPrintf("Failed to find magic in '%s'", filename); |
Brian Carlstrom | 7c3d13a | 2013-09-04 17:15:11 -0700 | [diff] [blame] | 77 | return -1; |
| 78 | } |
Vladimir Marko | fd99576 | 2013-11-06 16:36:36 +0000 | [diff] [blame] | 79 | if (lseek(fd.get(), 0, SEEK_SET) != 0) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 80 | *error_msg = StringPrintf("Failed to seek to beginning of file '%s' : %s", filename, |
| 81 | strerror(errno)); |
Brian Carlstrom | 7c3d13a | 2013-09-04 17:15:11 -0700 | [diff] [blame] | 82 | return -1; |
| 83 | } |
Vladimir Marko | fd99576 | 2013-11-06 16:36:36 +0000 | [diff] [blame] | 84 | return fd.release(); |
Brian Carlstrom | 7c3d13a | 2013-09-04 17:15:11 -0700 | [diff] [blame] | 85 | } |
| 86 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 87 | bool DexFile::GetChecksum(const char* filename, uint32_t* checksum, std::string* error_msg) { |
Brian Carlstrom | 7c3d13a | 2013-09-04 17:15:11 -0700 | [diff] [blame] | 88 | CHECK(checksum != NULL); |
| 89 | uint32_t magic; |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 90 | |
| 91 | // Strip ":...", which is the location |
| 92 | const char* zip_entry_name = kClassesDex; |
| 93 | const char* file_part = filename; |
| 94 | std::unique_ptr<const char> file_part_ptr; |
| 95 | |
| 96 | |
| 97 | if (IsMultiDexLocation(filename)) { |
| 98 | std::pair<const char*, const char*> pair = SplitMultiDexLocation(filename); |
| 99 | file_part_ptr.reset(pair.first); |
| 100 | file_part = pair.first; |
| 101 | zip_entry_name = pair.second; |
| 102 | } |
| 103 | |
| 104 | ScopedFd fd(OpenAndReadMagic(file_part, &magic, error_msg)); |
Vladimir Marko | fd99576 | 2013-11-06 16:36:36 +0000 | [diff] [blame] | 105 | if (fd.get() == -1) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 106 | DCHECK(!error_msg->empty()); |
Brian Carlstrom | 7c3d13a | 2013-09-04 17:15:11 -0700 | [diff] [blame] | 107 | return false; |
| 108 | } |
| 109 | if (IsZipMagic(magic)) { |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 110 | std::unique_ptr<ZipArchive> zip_archive(ZipArchive::OpenFromFd(fd.release(), filename, error_msg)); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 111 | if (zip_archive.get() == NULL) { |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 112 | *error_msg = StringPrintf("Failed to open zip archive '%s'", file_part); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 113 | return false; |
Brian Carlstrom | 78128a6 | 2011-09-15 17:21:19 -0700 | [diff] [blame] | 114 | } |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 115 | std::unique_ptr<ZipEntry> zip_entry(zip_archive->Find(zip_entry_name, error_msg)); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 116 | if (zip_entry.get() == NULL) { |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 117 | *error_msg = StringPrintf("Zip archive '%s' doesn't contain %s (error msg: %s)", file_part, |
| 118 | zip_entry_name, error_msg->c_str()); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 119 | return false; |
| 120 | } |
Brian Carlstrom | 7c3d13a | 2013-09-04 17:15:11 -0700 | [diff] [blame] | 121 | *checksum = zip_entry->GetCrc32(); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 122 | return true; |
Brian Carlstrom | 78128a6 | 2011-09-15 17:21:19 -0700 | [diff] [blame] | 123 | } |
Brian Carlstrom | 7c3d13a | 2013-09-04 17:15:11 -0700 | [diff] [blame] | 124 | if (IsDexMagic(magic)) { |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 125 | std::unique_ptr<const DexFile> dex_file(DexFile::OpenFile(fd.release(), filename, false, error_msg)); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 126 | if (dex_file.get() == NULL) { |
| 127 | return false; |
| 128 | } |
Brian Carlstrom | 7c3d13a | 2013-09-04 17:15:11 -0700 | [diff] [blame] | 129 | *checksum = dex_file->GetHeader().checksum_; |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 130 | return true; |
| 131 | } |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 132 | *error_msg = StringPrintf("Expected valid zip or dex file: '%s'", filename); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 133 | return false; |
Brian Carlstrom | 78128a6 | 2011-09-15 17:21:19 -0700 | [diff] [blame] | 134 | } |
| 135 | |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 136 | bool DexFile::Open(const char* filename, const char* location, std::string* error_msg, |
| 137 | std::vector<const DexFile*>* dex_files) { |
Brian Carlstrom | 7c3d13a | 2013-09-04 17:15:11 -0700 | [diff] [blame] | 138 | uint32_t magic; |
Vladimir Marko | fd99576 | 2013-11-06 16:36:36 +0000 | [diff] [blame] | 139 | ScopedFd fd(OpenAndReadMagic(filename, &magic, error_msg)); |
| 140 | if (fd.get() == -1) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 141 | DCHECK(!error_msg->empty()); |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 142 | return false; |
Brian Carlstrom | 69b15fb | 2011-09-03 12:25:21 -0700 | [diff] [blame] | 143 | } |
Brian Carlstrom | 7c3d13a | 2013-09-04 17:15:11 -0700 | [diff] [blame] | 144 | if (IsZipMagic(magic)) { |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 145 | return DexFile::OpenZip(fd.release(), location, error_msg, dex_files); |
Brian Carlstrom | 0dd7dda | 2011-10-25 15:47:53 -0700 | [diff] [blame] | 146 | } |
Brian Carlstrom | 7c3d13a | 2013-09-04 17:15:11 -0700 | [diff] [blame] | 147 | if (IsDexMagic(magic)) { |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 148 | std::unique_ptr<const DexFile> dex_file(DexFile::OpenFile(fd.release(), location, true, |
| 149 | error_msg)); |
| 150 | if (dex_file.get() != nullptr) { |
| 151 | dex_files->push_back(dex_file.release()); |
| 152 | return true; |
| 153 | } else { |
| 154 | return false; |
| 155 | } |
Brian Carlstrom | 7c3d13a | 2013-09-04 17:15:11 -0700 | [diff] [blame] | 156 | } |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 157 | *error_msg = StringPrintf("Expected valid zip or dex file: '%s'", filename); |
Alexander Ivchenko | bacce5c | 2014-06-26 16:32:11 +0400 | [diff] [blame] | 158 | return false; |
Brian Carlstrom | 69b15fb | 2011-09-03 12:25:21 -0700 | [diff] [blame] | 159 | } |
| 160 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 161 | int DexFile::GetPermissions() const { |
| 162 | if (mem_map_.get() == NULL) { |
| 163 | return 0; |
| 164 | } else { |
| 165 | return mem_map_->GetProtect(); |
| 166 | } |
| 167 | } |
| 168 | |
Sebastien Hertz | 2d6ba51 | 2013-05-17 11:31:37 +0200 | [diff] [blame] | 169 | bool DexFile::IsReadOnly() const { |
| 170 | return GetPermissions() == PROT_READ; |
| 171 | } |
| 172 | |
Brian Carlstrom | e0948e1 | 2013-08-29 09:36:15 -0700 | [diff] [blame] | 173 | bool DexFile::EnableWrite() const { |
Sebastien Hertz | 2d6ba51 | 2013-05-17 11:31:37 +0200 | [diff] [blame] | 174 | CHECK(IsReadOnly()); |
| 175 | if (mem_map_.get() == NULL) { |
| 176 | return false; |
| 177 | } else { |
Brian Carlstrom | e0948e1 | 2013-08-29 09:36:15 -0700 | [diff] [blame] | 178 | return mem_map_->Protect(PROT_READ | PROT_WRITE); |
Sebastien Hertz | 2d6ba51 | 2013-05-17 11:31:37 +0200 | [diff] [blame] | 179 | } |
| 180 | } |
| 181 | |
Brian Carlstrom | e0948e1 | 2013-08-29 09:36:15 -0700 | [diff] [blame] | 182 | bool DexFile::DisableWrite() const { |
Sebastien Hertz | 2d6ba51 | 2013-05-17 11:31:37 +0200 | [diff] [blame] | 183 | CHECK(!IsReadOnly()); |
| 184 | if (mem_map_.get() == NULL) { |
| 185 | return false; |
| 186 | } else { |
Brian Carlstrom | e0948e1 | 2013-08-29 09:36:15 -0700 | [diff] [blame] | 187 | return mem_map_->Protect(PROT_READ); |
Sebastien Hertz | 2d6ba51 | 2013-05-17 11:31:37 +0200 | [diff] [blame] | 188 | } |
| 189 | } |
| 190 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 191 | const DexFile* DexFile::OpenFile(int fd, const char* location, bool verify, |
| 192 | std::string* error_msg) { |
| 193 | CHECK(location != nullptr); |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 194 | std::unique_ptr<MemMap> map; |
Vladimir Marko | fd99576 | 2013-11-06 16:36:36 +0000 | [diff] [blame] | 195 | { |
| 196 | ScopedFd delayed_close(fd); |
| 197 | struct stat sbuf; |
| 198 | memset(&sbuf, 0, sizeof(sbuf)); |
| 199 | if (fstat(fd, &sbuf) == -1) { |
Brian Carlstrom | 4fa0bcd | 2013-12-10 11:24:21 -0800 | [diff] [blame] | 200 | *error_msg = StringPrintf("DexFile: fstat '%s' failed: %s", location, strerror(errno)); |
Vladimir Marko | fd99576 | 2013-11-06 16:36:36 +0000 | [diff] [blame] | 201 | return nullptr; |
| 202 | } |
| 203 | if (S_ISDIR(sbuf.st_mode)) { |
| 204 | *error_msg = StringPrintf("Attempt to mmap directory '%s'", location); |
| 205 | return nullptr; |
| 206 | } |
| 207 | size_t length = sbuf.st_size; |
| 208 | map.reset(MemMap::MapFile(length, PROT_READ, MAP_PRIVATE, fd, 0, location, error_msg)); |
| 209 | if (map.get() == nullptr) { |
| 210 | DCHECK(!error_msg->empty()); |
| 211 | return nullptr; |
| 212 | } |
Brian Carlstrom | 7e49dca | 2011-07-22 18:07:34 -0700 | [diff] [blame] | 213 | } |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 214 | |
| 215 | if (map->Size() < sizeof(DexFile::Header)) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 216 | *error_msg = StringPrintf( |
Brian Carlstrom | 4fa0bcd | 2013-12-10 11:24:21 -0800 | [diff] [blame] | 217 | "DexFile: failed to open dex file '%s' that is too short to have a header", location); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 218 | return nullptr; |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 219 | } |
| 220 | |
| 221 | const Header* dex_header = reinterpret_cast<const Header*>(map->Begin()); |
| 222 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 223 | const DexFile* dex_file = OpenMemory(location, dex_header->checksum_, map.release(), error_msg); |
| 224 | if (dex_file == nullptr) { |
| 225 | *error_msg = StringPrintf("Failed to open dex file '%s' from memory: %s", location, |
| 226 | error_msg->c_str()); |
| 227 | return nullptr; |
jeffhao | f6174e8 | 2012-01-31 16:14:17 -0800 | [diff] [blame] | 228 | } |
jeffhao | 54c1ceb | 2012-02-01 11:45:32 -0800 | [diff] [blame] | 229 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 230 | if (verify && !DexFileVerifier::Verify(dex_file, dex_file->Begin(), dex_file->Size(), location, |
| 231 | error_msg)) { |
| 232 | return nullptr; |
jeffhao | 54c1ceb | 2012-02-01 11:45:32 -0800 | [diff] [blame] | 233 | } |
| 234 | |
jeffhao | f6174e8 | 2012-01-31 16:14:17 -0800 | [diff] [blame] | 235 | return dex_file; |
Brian Carlstrom | 7e49dca | 2011-07-22 18:07:34 -0700 | [diff] [blame] | 236 | } |
| 237 | |
Brian Carlstrom | b7bbba4 | 2011-10-13 14:58:47 -0700 | [diff] [blame] | 238 | const char* DexFile::kClassesDex = "classes.dex"; |
Brian Carlstrom | b0460ea | 2011-07-29 10:08:05 -0700 | [diff] [blame] | 239 | |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 240 | bool DexFile::OpenZip(int fd, const std::string& location, std::string* error_msg, |
| 241 | std::vector<const DexFile*>* dex_files) { |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 242 | std::unique_ptr<ZipArchive> zip_archive(ZipArchive::OpenFromFd(fd, location.c_str(), error_msg)); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 243 | if (zip_archive.get() == nullptr) { |
| 244 | DCHECK(!error_msg->empty()); |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 245 | return false; |
Brian Carlstrom | b0460ea | 2011-07-29 10:08:05 -0700 | [diff] [blame] | 246 | } |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 247 | return DexFile::OpenFromZip(*zip_archive, location, error_msg, dex_files); |
Brian Carlstrom | a6cc893 | 2012-01-04 14:44:07 -0800 | [diff] [blame] | 248 | } |
| 249 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 250 | const DexFile* DexFile::OpenMemory(const std::string& location, |
| 251 | uint32_t location_checksum, |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 252 | MemMap* mem_map, |
| 253 | std::string* error_msg) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 254 | return OpenMemory(mem_map->Begin(), |
| 255 | mem_map->Size(), |
| 256 | location, |
| 257 | location_checksum, |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 258 | mem_map, |
| 259 | error_msg); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 260 | } |
| 261 | |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 262 | const DexFile* DexFile::Open(const ZipArchive& zip_archive, const char* entry_name, |
| 263 | const std::string& location, std::string* error_msg, |
| 264 | ZipOpenErrorCode* error_code) { |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 265 | CHECK(!location.empty()); |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 266 | std::unique_ptr<ZipEntry> zip_entry(zip_archive.Find(entry_name, error_msg)); |
Elliott Hughes | 90a3369 | 2011-08-30 13:27:07 -0700 | [diff] [blame] | 267 | if (zip_entry.get() == NULL) { |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 268 | *error_code = ZipOpenErrorCode::kEntryNotFound; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 269 | return nullptr; |
Brian Carlstrom | b0460ea | 2011-07-29 10:08:05 -0700 | [diff] [blame] | 270 | } |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 271 | std::unique_ptr<MemMap> map(zip_entry->ExtractToMemMap(location.c_str(), entry_name, error_msg)); |
Brian Carlstrom | 8952189 | 2011-12-07 22:05:07 -0800 | [diff] [blame] | 272 | if (map.get() == NULL) { |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 273 | *error_msg = StringPrintf("Failed to extract '%s' from '%s': %s", entry_name, location.c_str(), |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 274 | error_msg->c_str()); |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 275 | *error_code = ZipOpenErrorCode::kExtractToMemoryError; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 276 | return nullptr; |
Brian Carlstrom | b0460ea | 2011-07-29 10:08:05 -0700 | [diff] [blame] | 277 | } |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 278 | std::unique_ptr<const DexFile> dex_file(OpenMemory(location, zip_entry->GetCrc32(), map.release(), |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 279 | error_msg)); |
| 280 | if (dex_file.get() == nullptr) { |
| 281 | *error_msg = StringPrintf("Failed to open dex file '%s' from memory: %s", location.c_str(), |
| 282 | error_msg->c_str()); |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 283 | *error_code = ZipOpenErrorCode::kDexFileError; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 284 | return nullptr; |
jeffhao | f6174e8 | 2012-01-31 16:14:17 -0800 | [diff] [blame] | 285 | } |
Brian Carlstrom | e0948e1 | 2013-08-29 09:36:15 -0700 | [diff] [blame] | 286 | if (!dex_file->DisableWrite()) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 287 | *error_msg = StringPrintf("Failed to make dex file '%s' read only", location.c_str()); |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 288 | *error_code = ZipOpenErrorCode::kMakeReadOnlyError; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 289 | return nullptr; |
Brian Carlstrom | e0948e1 | 2013-08-29 09:36:15 -0700 | [diff] [blame] | 290 | } |
| 291 | CHECK(dex_file->IsReadOnly()) << location; |
Brian Carlstrom | d6cec90 | 2014-05-25 16:08:51 -0700 | [diff] [blame] | 292 | if (!DexFileVerifier::Verify(dex_file.get(), dex_file->Begin(), dex_file->Size(), |
| 293 | location.c_str(), error_msg)) { |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 294 | *error_code = ZipOpenErrorCode::kVerifyError; |
Brian Carlstrom | d6cec90 | 2014-05-25 16:08:51 -0700 | [diff] [blame] | 295 | return nullptr; |
| 296 | } |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 297 | *error_code = ZipOpenErrorCode::kNoError; |
Brian Carlstrom | e0948e1 | 2013-08-29 09:36:15 -0700 | [diff] [blame] | 298 | return dex_file.release(); |
Brian Carlstrom | b0460ea | 2011-07-29 10:08:05 -0700 | [diff] [blame] | 299 | } |
| 300 | |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 301 | bool DexFile::OpenFromZip(const ZipArchive& zip_archive, const std::string& location, |
| 302 | std::string* error_msg, std::vector<const DexFile*>* dex_files) { |
| 303 | ZipOpenErrorCode error_code; |
| 304 | std::unique_ptr<const DexFile> dex_file(Open(zip_archive, kClassesDex, location, error_msg, |
| 305 | &error_code)); |
| 306 | if (dex_file.get() == nullptr) { |
| 307 | return false; |
| 308 | } else { |
| 309 | // Had at least classes.dex. |
| 310 | dex_files->push_back(dex_file.release()); |
| 311 | |
| 312 | // Now try some more. |
| 313 | size_t i = 2; |
| 314 | |
| 315 | // We could try to avoid std::string allocations by working on a char array directly. As we |
| 316 | // do not expect a lot of iterations, this seems too involved and brittle. |
| 317 | |
| 318 | while (i < 100) { |
| 319 | std::string name = StringPrintf("classes%zu.dex", i); |
| 320 | std::string fake_location = location + ":" + name; |
| 321 | std::unique_ptr<const DexFile> next_dex_file(Open(zip_archive, name.c_str(), fake_location, |
| 322 | error_msg, &error_code)); |
| 323 | if (next_dex_file.get() == nullptr) { |
| 324 | if (error_code != ZipOpenErrorCode::kEntryNotFound) { |
| 325 | LOG(WARNING) << error_msg; |
| 326 | } |
| 327 | break; |
| 328 | } else { |
| 329 | dex_files->push_back(next_dex_file.release()); |
| 330 | } |
| 331 | |
| 332 | i++; |
| 333 | } |
| 334 | |
| 335 | return true; |
| 336 | } |
| 337 | } |
| 338 | |
| 339 | |
Brian Carlstrom | 8952189 | 2011-12-07 22:05:07 -0800 | [diff] [blame] | 340 | const DexFile* DexFile::OpenMemory(const byte* base, |
jeffhao | f6174e8 | 2012-01-31 16:14:17 -0800 | [diff] [blame] | 341 | size_t size, |
Brian Carlstrom | 8952189 | 2011-12-07 22:05:07 -0800 | [diff] [blame] | 342 | const std::string& location, |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 343 | uint32_t location_checksum, |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 344 | MemMap* mem_map, std::string* error_msg) { |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 345 | CHECK_ALIGNED(base, 4); // various dex file structures must be word aligned |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 346 | std::unique_ptr<DexFile> dex_file(new DexFile(base, size, location, location_checksum, mem_map)); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 347 | if (!dex_file->Init(error_msg)) { |
| 348 | return nullptr; |
Brian Carlstrom | 7e49dca | 2011-07-22 18:07:34 -0700 | [diff] [blame] | 349 | } else { |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 350 | return dex_file.release(); |
Brian Carlstrom | 7e49dca | 2011-07-22 18:07:34 -0700 | [diff] [blame] | 351 | } |
| 352 | } |
| 353 | |
Brian Carlstrom | 0d6adac | 2014-02-05 17:39:16 -0800 | [diff] [blame] | 354 | DexFile::DexFile(const byte* base, size_t size, |
| 355 | const std::string& location, |
| 356 | uint32_t location_checksum, |
| 357 | MemMap* mem_map) |
| 358 | : begin_(base), |
| 359 | size_(size), |
| 360 | location_(location), |
| 361 | location_checksum_(location_checksum), |
| 362 | mem_map_(mem_map), |
Brian Carlstrom | 0d6adac | 2014-02-05 17:39:16 -0800 | [diff] [blame] | 363 | header_(reinterpret_cast<const Header*>(base)), |
| 364 | string_ids_(reinterpret_cast<const StringId*>(base + header_->string_ids_off_)), |
| 365 | type_ids_(reinterpret_cast<const TypeId*>(base + header_->type_ids_off_)), |
| 366 | field_ids_(reinterpret_cast<const FieldId*>(base + header_->field_ids_off_)), |
| 367 | method_ids_(reinterpret_cast<const MethodId*>(base + header_->method_ids_off_)), |
| 368 | proto_ids_(reinterpret_cast<const ProtoId*>(base + header_->proto_ids_off_)), |
| 369 | class_defs_(reinterpret_cast<const ClassDef*>(base + header_->class_defs_off_)) { |
| 370 | CHECK(begin_ != NULL) << GetLocation(); |
| 371 | CHECK_GT(size_, 0U) << GetLocation(); |
| 372 | } |
| 373 | |
Jesse Wilson | 6bf1915 | 2011-09-29 13:12:33 -0400 | [diff] [blame] | 374 | DexFile::~DexFile() { |
Elliott Hughes | 8cef0b8 | 2011-10-11 19:24:00 -0700 | [diff] [blame] | 375 | // We don't call DeleteGlobalRef on dex_object_ because we're only called by DestroyJavaVM, and |
| 376 | // that's only called after DetachCurrentThread, which means there's no JNIEnv. We could |
| 377 | // re-attach, but cleaning up these global references is not obviously useful. It's not as if |
| 378 | // the global reference table is otherwise empty! |
Jesse Wilson | 6bf1915 | 2011-09-29 13:12:33 -0400 | [diff] [blame] | 379 | } |
| 380 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 381 | bool DexFile::Init(std::string* error_msg) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 382 | if (!CheckMagicAndVersion(error_msg)) { |
Brian Carlstrom | 7e49dca | 2011-07-22 18:07:34 -0700 | [diff] [blame] | 383 | return false; |
| 384 | } |
Brian Carlstrom | 7e49dca | 2011-07-22 18:07:34 -0700 | [diff] [blame] | 385 | return true; |
| 386 | } |
| 387 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 388 | bool DexFile::CheckMagicAndVersion(std::string* error_msg) const { |
Brian Carlstrom | 6e3b1d9 | 2012-01-11 01:36:32 -0800 | [diff] [blame] | 389 | CHECK(header_->magic_ != NULL) << GetLocation(); |
| 390 | if (!IsMagicValid(header_->magic_)) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 391 | std::ostringstream oss; |
| 392 | oss << "Unrecognized magic number in " << GetLocation() << ":" |
Brian Carlstrom | 6e3b1d9 | 2012-01-11 01:36:32 -0800 | [diff] [blame] | 393 | << " " << header_->magic_[0] |
| 394 | << " " << header_->magic_[1] |
| 395 | << " " << header_->magic_[2] |
| 396 | << " " << header_->magic_[3]; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 397 | *error_msg = oss.str(); |
Brian Carlstrom | 7e49dca | 2011-07-22 18:07:34 -0700 | [diff] [blame] | 398 | return false; |
| 399 | } |
Brian Carlstrom | 6e3b1d9 | 2012-01-11 01:36:32 -0800 | [diff] [blame] | 400 | if (!IsVersionValid(header_->magic_)) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 401 | std::ostringstream oss; |
| 402 | oss << "Unrecognized version number in " << GetLocation() << ":" |
Brian Carlstrom | 6e3b1d9 | 2012-01-11 01:36:32 -0800 | [diff] [blame] | 403 | << " " << header_->magic_[4] |
| 404 | << " " << header_->magic_[5] |
| 405 | << " " << header_->magic_[6] |
| 406 | << " " << header_->magic_[7]; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 407 | *error_msg = oss.str(); |
Brian Carlstrom | 7e49dca | 2011-07-22 18:07:34 -0700 | [diff] [blame] | 408 | return false; |
| 409 | } |
| 410 | return true; |
| 411 | } |
| 412 | |
Brian Carlstrom | 6e3b1d9 | 2012-01-11 01:36:32 -0800 | [diff] [blame] | 413 | bool DexFile::IsMagicValid(const byte* magic) { |
| 414 | return (memcmp(magic, kDexMagic, sizeof(kDexMagic)) == 0); |
| 415 | } |
| 416 | |
| 417 | bool DexFile::IsVersionValid(const byte* magic) { |
| 418 | const byte* version = &magic[sizeof(kDexMagic)]; |
| 419 | return (memcmp(version, kDexMagicVersion, sizeof(kDexMagicVersion)) == 0); |
| 420 | } |
| 421 | |
Ian Rogers | d81871c | 2011-10-03 13:57:23 -0700 | [diff] [blame] | 422 | uint32_t DexFile::GetVersion() const { |
| 423 | const char* version = reinterpret_cast<const char*>(&GetHeader().magic_[sizeof(kDexMagic)]); |
| 424 | return atoi(version); |
| 425 | } |
| 426 | |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 427 | const DexFile::ClassDef* DexFile::FindClassDef(const char* descriptor) const { |
| 428 | size_t num_class_defs = NumClassDefs(); |
| 429 | if (num_class_defs == 0) { |
| 430 | return NULL; |
| 431 | } |
| 432 | const StringId* string_id = FindStringId(descriptor); |
| 433 | if (string_id == NULL) { |
| 434 | return NULL; |
| 435 | } |
| 436 | const TypeId* type_id = FindTypeId(GetIndexForStringId(*string_id)); |
| 437 | if (type_id == NULL) { |
| 438 | return NULL; |
| 439 | } |
| 440 | uint16_t type_idx = GetIndexForTypeId(*type_id); |
| 441 | for (size_t i = 0; i < num_class_defs; ++i) { |
Brian Carlstrom | 7e49dca | 2011-07-22 18:07:34 -0700 | [diff] [blame] | 442 | const ClassDef& class_def = GetClassDef(i); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 443 | if (class_def.class_idx_ == type_idx) { |
| 444 | return &class_def; |
| 445 | } |
Brian Carlstrom | 7e49dca | 2011-07-22 18:07:34 -0700 | [diff] [blame] | 446 | } |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 447 | return NULL; |
Brian Carlstrom | 7e49dca | 2011-07-22 18:07:34 -0700 | [diff] [blame] | 448 | } |
| 449 | |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 450 | const DexFile::ClassDef* DexFile::FindClassDef(uint16_t type_idx) const { |
| 451 | size_t num_class_defs = NumClassDefs(); |
| 452 | for (size_t i = 0; i < num_class_defs; ++i) { |
| 453 | const ClassDef& class_def = GetClassDef(i); |
| 454 | if (class_def.class_idx_ == type_idx) { |
| 455 | return &class_def; |
| 456 | } |
Brian Carlstrom | e24fa61 | 2011-09-29 00:53:55 -0700 | [diff] [blame] | 457 | } |
| 458 | return NULL; |
Brian Carlstrom | 7e49dca | 2011-07-22 18:07:34 -0700 | [diff] [blame] | 459 | } |
| 460 | |
Ian Rogers | 9b1a4f4 | 2011-11-14 18:35:10 -0800 | [diff] [blame] | 461 | const DexFile::FieldId* DexFile::FindFieldId(const DexFile::TypeId& declaring_klass, |
| 462 | const DexFile::StringId& name, |
| 463 | const DexFile::TypeId& type) const { |
| 464 | // Binary search MethodIds knowing that they are sorted by class_idx, name_idx then proto_idx |
| 465 | const uint16_t class_idx = GetIndexForTypeId(declaring_klass); |
| 466 | const uint32_t name_idx = GetIndexForStringId(name); |
| 467 | const uint16_t type_idx = GetIndexForTypeId(type); |
Ian Rogers | f8582c3 | 2013-05-29 16:33:03 -0700 | [diff] [blame] | 468 | int32_t lo = 0; |
| 469 | int32_t hi = NumFieldIds() - 1; |
Ian Rogers | 9b1a4f4 | 2011-11-14 18:35:10 -0800 | [diff] [blame] | 470 | while (hi >= lo) { |
Ian Rogers | f8582c3 | 2013-05-29 16:33:03 -0700 | [diff] [blame] | 471 | int32_t mid = (hi + lo) / 2; |
Ian Rogers | 9b1a4f4 | 2011-11-14 18:35:10 -0800 | [diff] [blame] | 472 | const DexFile::FieldId& field = GetFieldId(mid); |
| 473 | if (class_idx > field.class_idx_) { |
| 474 | lo = mid + 1; |
| 475 | } else if (class_idx < field.class_idx_) { |
| 476 | hi = mid - 1; |
| 477 | } else { |
| 478 | if (name_idx > field.name_idx_) { |
| 479 | lo = mid + 1; |
| 480 | } else if (name_idx < field.name_idx_) { |
| 481 | hi = mid - 1; |
| 482 | } else { |
| 483 | if (type_idx > field.type_idx_) { |
| 484 | lo = mid + 1; |
| 485 | } else if (type_idx < field.type_idx_) { |
| 486 | hi = mid - 1; |
| 487 | } else { |
| 488 | return &field; |
| 489 | } |
| 490 | } |
| 491 | } |
| 492 | } |
| 493 | return NULL; |
| 494 | } |
| 495 | |
| 496 | const DexFile::MethodId* DexFile::FindMethodId(const DexFile::TypeId& declaring_klass, |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 497 | const DexFile::StringId& name, |
| 498 | const DexFile::ProtoId& signature) const { |
| 499 | // Binary search MethodIds knowing that they are sorted by class_idx, name_idx then proto_idx |
Ian Rogers | 9b1a4f4 | 2011-11-14 18:35:10 -0800 | [diff] [blame] | 500 | const uint16_t class_idx = GetIndexForTypeId(declaring_klass); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 501 | const uint32_t name_idx = GetIndexForStringId(name); |
| 502 | const uint16_t proto_idx = GetIndexForProtoId(signature); |
Ian Rogers | f8582c3 | 2013-05-29 16:33:03 -0700 | [diff] [blame] | 503 | int32_t lo = 0; |
| 504 | int32_t hi = NumMethodIds() - 1; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 505 | while (hi >= lo) { |
Ian Rogers | f8582c3 | 2013-05-29 16:33:03 -0700 | [diff] [blame] | 506 | int32_t mid = (hi + lo) / 2; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 507 | const DexFile::MethodId& method = GetMethodId(mid); |
| 508 | if (class_idx > method.class_idx_) { |
| 509 | lo = mid + 1; |
| 510 | } else if (class_idx < method.class_idx_) { |
| 511 | hi = mid - 1; |
| 512 | } else { |
| 513 | if (name_idx > method.name_idx_) { |
| 514 | lo = mid + 1; |
| 515 | } else if (name_idx < method.name_idx_) { |
| 516 | hi = mid - 1; |
| 517 | } else { |
| 518 | if (proto_idx > method.proto_idx_) { |
| 519 | lo = mid + 1; |
| 520 | } else if (proto_idx < method.proto_idx_) { |
| 521 | hi = mid - 1; |
| 522 | } else { |
| 523 | return &method; |
| 524 | } |
| 525 | } |
| 526 | } |
| 527 | } |
| 528 | return NULL; |
| 529 | } |
| 530 | |
Ian Rogers | 637c65b | 2013-05-31 11:46:00 -0700 | [diff] [blame] | 531 | const DexFile::StringId* DexFile::FindStringId(const char* string) const { |
Ian Rogers | f8582c3 | 2013-05-29 16:33:03 -0700 | [diff] [blame] | 532 | int32_t lo = 0; |
| 533 | int32_t hi = NumStringIds() - 1; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 534 | while (hi >= lo) { |
Ian Rogers | f8582c3 | 2013-05-29 16:33:03 -0700 | [diff] [blame] | 535 | int32_t mid = (hi + lo) / 2; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 536 | const DexFile::StringId& str_id = GetStringId(mid); |
Ian Rogers | cf5077a | 2013-10-31 12:37:54 -0700 | [diff] [blame] | 537 | const char* str = GetStringData(str_id); |
Ian Rogers | 637c65b | 2013-05-31 11:46:00 -0700 | [diff] [blame] | 538 | int compare = CompareModifiedUtf8ToModifiedUtf8AsUtf16CodePointValues(string, str); |
| 539 | if (compare > 0) { |
| 540 | lo = mid + 1; |
| 541 | } else if (compare < 0) { |
| 542 | hi = mid - 1; |
| 543 | } else { |
| 544 | return &str_id; |
| 545 | } |
| 546 | } |
| 547 | return NULL; |
| 548 | } |
| 549 | |
| 550 | const DexFile::StringId* DexFile::FindStringId(const uint16_t* string) const { |
| 551 | int32_t lo = 0; |
| 552 | int32_t hi = NumStringIds() - 1; |
| 553 | while (hi >= lo) { |
| 554 | int32_t mid = (hi + lo) / 2; |
Ian Rogers | 637c65b | 2013-05-31 11:46:00 -0700 | [diff] [blame] | 555 | const DexFile::StringId& str_id = GetStringId(mid); |
Ian Rogers | cf5077a | 2013-10-31 12:37:54 -0700 | [diff] [blame] | 556 | const char* str = GetStringData(str_id); |
Ian Rogers | 637c65b | 2013-05-31 11:46:00 -0700 | [diff] [blame] | 557 | int compare = CompareModifiedUtf8ToUtf16AsCodePointValues(str, string); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 558 | if (compare > 0) { |
| 559 | lo = mid + 1; |
| 560 | } else if (compare < 0) { |
| 561 | hi = mid - 1; |
| 562 | } else { |
| 563 | return &str_id; |
| 564 | } |
| 565 | } |
| 566 | return NULL; |
| 567 | } |
| 568 | |
| 569 | const DexFile::TypeId* DexFile::FindTypeId(uint32_t string_idx) const { |
Ian Rogers | f8582c3 | 2013-05-29 16:33:03 -0700 | [diff] [blame] | 570 | int32_t lo = 0; |
| 571 | int32_t hi = NumTypeIds() - 1; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 572 | while (hi >= lo) { |
Ian Rogers | f8582c3 | 2013-05-29 16:33:03 -0700 | [diff] [blame] | 573 | int32_t mid = (hi + lo) / 2; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 574 | const TypeId& type_id = GetTypeId(mid); |
| 575 | if (string_idx > type_id.descriptor_idx_) { |
| 576 | lo = mid + 1; |
| 577 | } else if (string_idx < type_id.descriptor_idx_) { |
| 578 | hi = mid - 1; |
| 579 | } else { |
| 580 | return &type_id; |
| 581 | } |
| 582 | } |
| 583 | return NULL; |
| 584 | } |
| 585 | |
| 586 | const DexFile::ProtoId* DexFile::FindProtoId(uint16_t return_type_idx, |
Vladimir Marko | 5c96e6b | 2013-11-14 15:34:17 +0000 | [diff] [blame] | 587 | const uint16_t* signature_type_idxs, |
| 588 | uint32_t signature_length) const { |
Ian Rogers | f8582c3 | 2013-05-29 16:33:03 -0700 | [diff] [blame] | 589 | int32_t lo = 0; |
| 590 | int32_t hi = NumProtoIds() - 1; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 591 | while (hi >= lo) { |
Ian Rogers | f8582c3 | 2013-05-29 16:33:03 -0700 | [diff] [blame] | 592 | int32_t mid = (hi + lo) / 2; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 593 | const DexFile::ProtoId& proto = GetProtoId(mid); |
| 594 | int compare = return_type_idx - proto.return_type_idx_; |
| 595 | if (compare == 0) { |
| 596 | DexFileParameterIterator it(*this, proto); |
| 597 | size_t i = 0; |
Vladimir Marko | 5c96e6b | 2013-11-14 15:34:17 +0000 | [diff] [blame] | 598 | while (it.HasNext() && i < signature_length && compare == 0) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 599 | compare = signature_type_idxs[i] - it.GetTypeIdx(); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 600 | it.Next(); |
| 601 | i++; |
| 602 | } |
| 603 | if (compare == 0) { |
| 604 | if (it.HasNext()) { |
| 605 | compare = -1; |
Vladimir Marko | 5c96e6b | 2013-11-14 15:34:17 +0000 | [diff] [blame] | 606 | } else if (i < signature_length) { |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 607 | compare = 1; |
| 608 | } |
| 609 | } |
| 610 | } |
| 611 | if (compare > 0) { |
| 612 | lo = mid + 1; |
| 613 | } else if (compare < 0) { |
| 614 | hi = mid - 1; |
| 615 | } else { |
| 616 | return &proto; |
| 617 | } |
| 618 | } |
| 619 | return NULL; |
| 620 | } |
| 621 | |
| 622 | // Given a signature place the type ids into the given vector |
Ian Rogers | d91d6d6 | 2013-09-25 20:26:14 -0700 | [diff] [blame] | 623 | bool DexFile::CreateTypeList(const StringPiece& signature, uint16_t* return_type_idx, |
| 624 | std::vector<uint16_t>* param_type_idxs) const { |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 625 | if (signature[0] != '(') { |
| 626 | return false; |
| 627 | } |
| 628 | size_t offset = 1; |
| 629 | size_t end = signature.size(); |
| 630 | bool process_return = false; |
| 631 | while (offset < end) { |
Vladimir Marko | e9c36b3 | 2013-11-21 15:49:16 +0000 | [diff] [blame] | 632 | size_t start_offset = offset; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 633 | char c = signature[offset]; |
| 634 | offset++; |
| 635 | if (c == ')') { |
| 636 | process_return = true; |
| 637 | continue; |
| 638 | } |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 639 | while (c == '[') { // process array prefix |
| 640 | if (offset >= end) { // expect some descriptor following [ |
| 641 | return false; |
| 642 | } |
| 643 | c = signature[offset]; |
| 644 | offset++; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 645 | } |
| 646 | if (c == 'L') { // process type descriptors |
| 647 | do { |
| 648 | if (offset >= end) { // unexpected early termination of descriptor |
| 649 | return false; |
| 650 | } |
| 651 | c = signature[offset]; |
| 652 | offset++; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 653 | } while (c != ';'); |
| 654 | } |
Vladimir Marko | e9c36b3 | 2013-11-21 15:49:16 +0000 | [diff] [blame] | 655 | // TODO: avoid creating a std::string just to get a 0-terminated char array |
| 656 | std::string descriptor(signature.data() + start_offset, offset - start_offset); |
Ian Rogers | 637c65b | 2013-05-31 11:46:00 -0700 | [diff] [blame] | 657 | const DexFile::StringId* string_id = FindStringId(descriptor.c_str()); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 658 | if (string_id == NULL) { |
| 659 | return false; |
| 660 | } |
| 661 | const DexFile::TypeId* type_id = FindTypeId(GetIndexForStringId(*string_id)); |
| 662 | if (type_id == NULL) { |
| 663 | return false; |
| 664 | } |
| 665 | uint16_t type_idx = GetIndexForTypeId(*type_id); |
| 666 | if (!process_return) { |
| 667 | param_type_idxs->push_back(type_idx); |
| 668 | } else { |
| 669 | *return_type_idx = type_idx; |
| 670 | return offset == end; // return true if the signature had reached a sensible end |
| 671 | } |
| 672 | } |
| 673 | return false; // failed to correctly parse return type |
| 674 | } |
| 675 | |
Ian Rogers | d91d6d6 | 2013-09-25 20:26:14 -0700 | [diff] [blame] | 676 | const Signature DexFile::CreateSignature(const StringPiece& signature) const { |
| 677 | uint16_t return_type_idx; |
| 678 | std::vector<uint16_t> param_type_indices; |
| 679 | bool success = CreateTypeList(signature, &return_type_idx, ¶m_type_indices); |
| 680 | if (!success) { |
| 681 | return Signature::NoSignature(); |
Carl Shapiro | 419ec7b | 2011-08-03 14:48:33 -0700 | [diff] [blame] | 682 | } |
Ian Rogers | d91d6d6 | 2013-09-25 20:26:14 -0700 | [diff] [blame] | 683 | const ProtoId* proto_id = FindProtoId(return_type_idx, param_type_indices); |
| 684 | if (proto_id == NULL) { |
| 685 | return Signature::NoSignature(); |
Brian Carlstrom | 20cfffa | 2011-08-26 02:31:27 -0700 | [diff] [blame] | 686 | } |
Ian Rogers | d91d6d6 | 2013-09-25 20:26:14 -0700 | [diff] [blame] | 687 | return Signature(this, *proto_id); |
Carl Shapiro | 419ec7b | 2011-08-03 14:48:33 -0700 | [diff] [blame] | 688 | } |
| 689 | |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 690 | int32_t DexFile::GetLineNumFromPC(mirror::ArtMethod* method, uint32_t rel_pc) const { |
Shih-wei Liao | ff0f9be | 2011-08-29 15:43:53 -0700 | [diff] [blame] | 691 | // For native method, lineno should be -2 to indicate it is native. Note that |
| 692 | // "line number == -2" is how libcore tells from StackTraceElement. |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 693 | if (method->GetCodeItemOffset() == 0) { |
Shih-wei Liao | ff0f9be | 2011-08-29 15:43:53 -0700 | [diff] [blame] | 694 | return -2; |
| 695 | } |
| 696 | |
TDYa127 | c8dc101 | 2012-04-19 07:03:33 -0700 | [diff] [blame] | 697 | const CodeItem* code_item = GetCodeItem(method->GetCodeItemOffset()); |
Elliott Hughes | caf7654 | 2012-06-28 16:08:22 -0700 | [diff] [blame] | 698 | DCHECK(code_item != NULL) << PrettyMethod(method) << " " << GetLocation(); |
Shih-wei Liao | 195487c | 2011-08-20 13:29:04 -0700 | [diff] [blame] | 699 | |
| 700 | // A method with no line number info should return -1 |
| 701 | LineNumFromPcContext context(rel_pc, -1); |
TDYa127 | c8dc101 | 2012-04-19 07:03:33 -0700 | [diff] [blame] | 702 | DecodeDebugInfo(code_item, method->IsStatic(), method->GetDexMethodIndex(), LineNumForPcCb, |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 703 | NULL, &context); |
Shih-wei Liao | 195487c | 2011-08-20 13:29:04 -0700 | [diff] [blame] | 704 | return context.line_num_; |
| 705 | } |
| 706 | |
Ian Rogers | dbbc99d | 2013-04-18 16:51:54 -0700 | [diff] [blame] | 707 | int32_t DexFile::FindTryItem(const CodeItem &code_item, uint32_t address) { |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 708 | // Note: Signed type is important for max and min. |
| 709 | int32_t min = 0; |
Ian Rogers | dbbc99d | 2013-04-18 16:51:54 -0700 | [diff] [blame] | 710 | int32_t max = code_item.tries_size_ - 1; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 711 | |
Ian Rogers | dbbc99d | 2013-04-18 16:51:54 -0700 | [diff] [blame] | 712 | while (min <= max) { |
| 713 | int32_t mid = min + ((max - min) / 2); |
| 714 | |
| 715 | const art::DexFile::TryItem* ti = GetTryItems(code_item, mid); |
| 716 | uint32_t start = ti->start_addr_; |
| 717 | uint32_t end = start + ti->insn_count_; |
| 718 | |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 719 | if (address < start) { |
| 720 | max = mid - 1; |
Ian Rogers | dbbc99d | 2013-04-18 16:51:54 -0700 | [diff] [blame] | 721 | } else if (address >= end) { |
| 722 | min = mid + 1; |
| 723 | } else { // We have a winner! |
| 724 | return mid; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 725 | } |
| 726 | } |
| 727 | // No match. |
| 728 | return -1; |
| 729 | } |
| 730 | |
Ian Rogers | dbbc99d | 2013-04-18 16:51:54 -0700 | [diff] [blame] | 731 | int32_t DexFile::FindCatchHandlerOffset(const CodeItem &code_item, uint32_t address) { |
| 732 | int32_t try_item = FindTryItem(code_item, address); |
| 733 | if (try_item == -1) { |
| 734 | return -1; |
| 735 | } else { |
| 736 | return DexFile::GetTryItems(code_item, try_item)->handler_off_; |
| 737 | } |
| 738 | } |
| 739 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 740 | void DexFile::DecodeDebugInfo0(const CodeItem* code_item, bool is_static, uint32_t method_idx, |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 741 | DexDebugNewPositionCb position_cb, DexDebugNewLocalCb local_cb, |
| 742 | void* context, const byte* stream, LocalInfo* local_in_reg) const { |
Shih-wei Liao | 195487c | 2011-08-20 13:29:04 -0700 | [diff] [blame] | 743 | uint32_t line = DecodeUnsignedLeb128(&stream); |
| 744 | uint32_t parameters_size = DecodeUnsignedLeb128(&stream); |
| 745 | uint16_t arg_reg = code_item->registers_size_ - code_item->ins_size_; |
| 746 | uint32_t address = 0; |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 747 | bool need_locals = (local_cb != NULL); |
Shih-wei Liao | 195487c | 2011-08-20 13:29:04 -0700 | [diff] [blame] | 748 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 749 | if (!is_static) { |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 750 | if (need_locals) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 751 | const char* descriptor = GetMethodDeclaringClassDescriptor(GetMethodId(method_idx)); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 752 | local_in_reg[arg_reg].name_ = "this"; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 753 | local_in_reg[arg_reg].descriptor_ = descriptor; |
Elliott Hughes | 392b124 | 2011-11-30 13:55:50 -0800 | [diff] [blame] | 754 | local_in_reg[arg_reg].signature_ = NULL; |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 755 | local_in_reg[arg_reg].start_address_ = 0; |
| 756 | local_in_reg[arg_reg].is_live_ = true; |
| 757 | } |
Shih-wei Liao | 195487c | 2011-08-20 13:29:04 -0700 | [diff] [blame] | 758 | arg_reg++; |
| 759 | } |
| 760 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 761 | DexFileParameterIterator it(*this, GetMethodPrototype(GetMethodId(method_idx))); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 762 | for (uint32_t i = 0; i < parameters_size && it.HasNext(); ++i, it.Next()) { |
Shih-wei Liao | 195487c | 2011-08-20 13:29:04 -0700 | [diff] [blame] | 763 | if (arg_reg >= code_item->registers_size_) { |
jeffhao | f872887 | 2011-10-28 19:11:13 -0700 | [diff] [blame] | 764 | LOG(ERROR) << "invalid stream - arg reg >= reg size (" << arg_reg |
Brian Carlstrom | 2aab947 | 2011-12-12 15:21:43 -0800 | [diff] [blame] | 765 | << " >= " << code_item->registers_size_ << ") in " << GetLocation(); |
Shih-wei Liao | 195487c | 2011-08-20 13:29:04 -0700 | [diff] [blame] | 766 | return; |
| 767 | } |
Elliott Hughes | 392b124 | 2011-11-30 13:55:50 -0800 | [diff] [blame] | 768 | uint32_t id = DecodeUnsignedLeb128P1(&stream); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 769 | const char* descriptor = it.GetDescriptor(); |
Elliott Hughes | 392b124 | 2011-11-30 13:55:50 -0800 | [diff] [blame] | 770 | if (need_locals && id != kDexNoIndex) { |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 771 | const char* name = StringDataByIdx(id); |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 772 | local_in_reg[arg_reg].name_ = name; |
| 773 | local_in_reg[arg_reg].descriptor_ = descriptor; |
Elliott Hughes | 392b124 | 2011-11-30 13:55:50 -0800 | [diff] [blame] | 774 | local_in_reg[arg_reg].signature_ = NULL; |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 775 | local_in_reg[arg_reg].start_address_ = address; |
| 776 | local_in_reg[arg_reg].is_live_ = true; |
| 777 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 778 | switch (*descriptor) { |
Shih-wei Liao | 195487c | 2011-08-20 13:29:04 -0700 | [diff] [blame] | 779 | case 'D': |
| 780 | case 'J': |
| 781 | arg_reg += 2; |
| 782 | break; |
| 783 | default: |
| 784 | arg_reg += 1; |
| 785 | break; |
| 786 | } |
| 787 | } |
| 788 | |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 789 | if (it.HasNext()) { |
Brian Carlstrom | f79fccb | 2014-02-20 08:55:10 -0800 | [diff] [blame] | 790 | LOG(ERROR) << "invalid stream - problem with parameter iterator in " << GetLocation() |
| 791 | << " for method " << PrettyMethod(method_idx, *this); |
Shih-wei Liao | 195487c | 2011-08-20 13:29:04 -0700 | [diff] [blame] | 792 | return; |
| 793 | } |
| 794 | |
| 795 | for (;;) { |
| 796 | uint8_t opcode = *stream++; |
Shih-wei Liao | 195487c | 2011-08-20 13:29:04 -0700 | [diff] [blame] | 797 | uint16_t reg; |
Jeff Hao | b7cefc7 | 2013-11-14 14:51:09 -0800 | [diff] [blame] | 798 | uint32_t name_idx; |
| 799 | uint32_t descriptor_idx; |
| 800 | uint32_t signature_idx = 0; |
Shih-wei Liao | 195487c | 2011-08-20 13:29:04 -0700 | [diff] [blame] | 801 | |
Shih-wei Liao | 195487c | 2011-08-20 13:29:04 -0700 | [diff] [blame] | 802 | switch (opcode) { |
| 803 | case DBG_END_SEQUENCE: |
| 804 | return; |
| 805 | |
| 806 | case DBG_ADVANCE_PC: |
| 807 | address += DecodeUnsignedLeb128(&stream); |
| 808 | break; |
| 809 | |
| 810 | case DBG_ADVANCE_LINE: |
Shih-wei Liao | 8a05d27 | 2011-10-15 18:45:43 -0700 | [diff] [blame] | 811 | line += DecodeSignedLeb128(&stream); |
Shih-wei Liao | 195487c | 2011-08-20 13:29:04 -0700 | [diff] [blame] | 812 | break; |
| 813 | |
| 814 | case DBG_START_LOCAL: |
| 815 | case DBG_START_LOCAL_EXTENDED: |
| 816 | reg = DecodeUnsignedLeb128(&stream); |
| 817 | if (reg > code_item->registers_size_) { |
jeffhao | f872887 | 2011-10-28 19:11:13 -0700 | [diff] [blame] | 818 | LOG(ERROR) << "invalid stream - reg > reg size (" << reg << " > " |
Brian Carlstrom | 2aab947 | 2011-12-12 15:21:43 -0800 | [diff] [blame] | 819 | << code_item->registers_size_ << ") in " << GetLocation(); |
Shih-wei Liao | 195487c | 2011-08-20 13:29:04 -0700 | [diff] [blame] | 820 | return; |
| 821 | } |
| 822 | |
jeffhao | f872887 | 2011-10-28 19:11:13 -0700 | [diff] [blame] | 823 | name_idx = DecodeUnsignedLeb128P1(&stream); |
| 824 | descriptor_idx = DecodeUnsignedLeb128P1(&stream); |
| 825 | if (opcode == DBG_START_LOCAL_EXTENDED) { |
| 826 | signature_idx = DecodeUnsignedLeb128P1(&stream); |
| 827 | } |
| 828 | |
Shih-wei Liao | 195487c | 2011-08-20 13:29:04 -0700 | [diff] [blame] | 829 | // Emit what was previously there, if anything |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 830 | if (need_locals) { |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 831 | InvokeLocalCbIfLive(context, reg, address, local_in_reg, local_cb); |
Shih-wei Liao | 195487c | 2011-08-20 13:29:04 -0700 | [diff] [blame] | 832 | |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 833 | local_in_reg[reg].name_ = StringDataByIdx(name_idx); |
| 834 | local_in_reg[reg].descriptor_ = StringByTypeIdx(descriptor_idx); |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 835 | if (opcode == DBG_START_LOCAL_EXTENDED) { |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 836 | local_in_reg[reg].signature_ = StringDataByIdx(signature_idx); |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 837 | } |
| 838 | local_in_reg[reg].start_address_ = address; |
| 839 | local_in_reg[reg].is_live_ = true; |
Shih-wei Liao | 195487c | 2011-08-20 13:29:04 -0700 | [diff] [blame] | 840 | } |
Shih-wei Liao | 195487c | 2011-08-20 13:29:04 -0700 | [diff] [blame] | 841 | break; |
| 842 | |
| 843 | case DBG_END_LOCAL: |
| 844 | reg = DecodeUnsignedLeb128(&stream); |
| 845 | if (reg > code_item->registers_size_) { |
jeffhao | f872887 | 2011-10-28 19:11:13 -0700 | [diff] [blame] | 846 | LOG(ERROR) << "invalid stream - reg > reg size (" << reg << " > " |
Brian Carlstrom | 2aab947 | 2011-12-12 15:21:43 -0800 | [diff] [blame] | 847 | << code_item->registers_size_ << ") in " << GetLocation(); |
Shih-wei Liao | 195487c | 2011-08-20 13:29:04 -0700 | [diff] [blame] | 848 | return; |
| 849 | } |
| 850 | |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 851 | if (need_locals) { |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 852 | InvokeLocalCbIfLive(context, reg, address, local_in_reg, local_cb); |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 853 | local_in_reg[reg].is_live_ = false; |
| 854 | } |
Shih-wei Liao | 195487c | 2011-08-20 13:29:04 -0700 | [diff] [blame] | 855 | break; |
| 856 | |
| 857 | case DBG_RESTART_LOCAL: |
| 858 | reg = DecodeUnsignedLeb128(&stream); |
| 859 | if (reg > code_item->registers_size_) { |
jeffhao | f872887 | 2011-10-28 19:11:13 -0700 | [diff] [blame] | 860 | LOG(ERROR) << "invalid stream - reg > reg size (" << reg << " > " |
Brian Carlstrom | 2aab947 | 2011-12-12 15:21:43 -0800 | [diff] [blame] | 861 | << code_item->registers_size_ << ") in " << GetLocation(); |
Shih-wei Liao | 195487c | 2011-08-20 13:29:04 -0700 | [diff] [blame] | 862 | return; |
| 863 | } |
| 864 | |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 865 | if (need_locals) { |
| 866 | if (local_in_reg[reg].name_ == NULL || local_in_reg[reg].descriptor_ == NULL) { |
Brian Carlstrom | 2aab947 | 2011-12-12 15:21:43 -0800 | [diff] [blame] | 867 | LOG(ERROR) << "invalid stream - no name or descriptor in " << GetLocation(); |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 868 | return; |
| 869 | } |
Shih-wei Liao | 195487c | 2011-08-20 13:29:04 -0700 | [diff] [blame] | 870 | |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 871 | // If the register is live, the "restart" is superfluous, |
| 872 | // and we don't want to mess with the existing start address. |
| 873 | if (!local_in_reg[reg].is_live_) { |
| 874 | local_in_reg[reg].start_address_ = address; |
| 875 | local_in_reg[reg].is_live_ = true; |
| 876 | } |
Shih-wei Liao | 195487c | 2011-08-20 13:29:04 -0700 | [diff] [blame] | 877 | } |
| 878 | break; |
| 879 | |
| 880 | case DBG_SET_PROLOGUE_END: |
| 881 | case DBG_SET_EPILOGUE_BEGIN: |
| 882 | case DBG_SET_FILE: |
| 883 | break; |
| 884 | |
Shih-wei Liao | 8e1b4ff | 2011-10-15 15:43:51 -0700 | [diff] [blame] | 885 | default: { |
| 886 | int adjopcode = opcode - DBG_FIRST_SPECIAL; |
| 887 | |
Shih-wei Liao | 195487c | 2011-08-20 13:29:04 -0700 | [diff] [blame] | 888 | address += adjopcode / DBG_LINE_RANGE; |
| 889 | line += DBG_LINE_BASE + (adjopcode % DBG_LINE_RANGE); |
| 890 | |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 891 | if (position_cb != NULL) { |
| 892 | if (position_cb(context, address, line)) { |
Shih-wei Liao | 195487c | 2011-08-20 13:29:04 -0700 | [diff] [blame] | 893 | // early exit |
| 894 | return; |
| 895 | } |
| 896 | } |
| 897 | break; |
Shih-wei Liao | 8e1b4ff | 2011-10-15 15:43:51 -0700 | [diff] [blame] | 898 | } |
Shih-wei Liao | 195487c | 2011-08-20 13:29:04 -0700 | [diff] [blame] | 899 | } |
| 900 | } |
| 901 | } |
| 902 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 903 | void DexFile::DecodeDebugInfo(const CodeItem* code_item, bool is_static, uint32_t method_idx, |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 904 | DexDebugNewPositionCb position_cb, DexDebugNewLocalCb local_cb, |
| 905 | void* context) const { |
Sebastien Hertz | cb19ebf | 2014-03-11 15:26:35 +0100 | [diff] [blame] | 906 | DCHECK(code_item != nullptr); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 907 | const byte* stream = GetDebugInfoStream(code_item); |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 908 | std::unique_ptr<LocalInfo[]> local_in_reg(local_cb != NULL ? |
Brian Carlstrom | e0948e1 | 2013-08-29 09:36:15 -0700 | [diff] [blame] | 909 | new LocalInfo[code_item->registers_size_] : |
| 910 | NULL); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 911 | if (stream != NULL) { |
Elliott Hughes | ee0fa76 | 2012-03-26 17:12:41 -0700 | [diff] [blame] | 912 | DecodeDebugInfo0(code_item, is_static, method_idx, position_cb, local_cb, context, stream, &local_in_reg[0]); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 913 | } |
| 914 | for (int reg = 0; reg < code_item->registers_size_; reg++) { |
Elliott Hughes | ee0fa76 | 2012-03-26 17:12:41 -0700 | [diff] [blame] | 915 | InvokeLocalCbIfLive(context, reg, code_item->insns_size_in_code_units_, &local_in_reg[0], local_cb); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 916 | } |
| 917 | } |
| 918 | |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 919 | bool DexFile::LineNumForPcCb(void* raw_context, uint32_t address, uint32_t line_num) { |
| 920 | LineNumFromPcContext* context = reinterpret_cast<LineNumFromPcContext*>(raw_context); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 921 | |
| 922 | // We know that this callback will be called in |
| 923 | // ascending address order, so keep going until we find |
| 924 | // a match or we've just gone past it. |
| 925 | if (address > context->address_) { |
| 926 | // The line number from the previous positions callback |
| 927 | // wil be the final result. |
| 928 | return true; |
| 929 | } else { |
| 930 | context->line_num_ = line_num; |
| 931 | return address == context->address_; |
| 932 | } |
| 933 | } |
| 934 | |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 935 | bool DexFile::IsMultiDexLocation(const char* location) { |
| 936 | return strrchr(location, kMultiDexSeparator) != nullptr; |
| 937 | } |
| 938 | |
| 939 | std::pair<const char*, const char*> DexFile::SplitMultiDexLocation( |
| 940 | const char* location) { |
| 941 | const char* colon_ptr = strrchr(location, kMultiDexSeparator); |
| 942 | |
| 943 | // Check it's synthetic. |
| 944 | CHECK_NE(colon_ptr, static_cast<const char*>(nullptr)); |
| 945 | |
| 946 | size_t colon_index = colon_ptr - location; |
| 947 | char* tmp = new char[colon_index + 1]; |
| 948 | strncpy(tmp, location, colon_index); |
| 949 | tmp[colon_index] = 0; |
| 950 | |
| 951 | return std::make_pair(tmp, colon_ptr + 1); |
| 952 | } |
| 953 | |
Brian Carlstrom | 0d6adac | 2014-02-05 17:39:16 -0800 | [diff] [blame] | 954 | std::ostream& operator<<(std::ostream& os, const DexFile& dex_file) { |
| 955 | os << StringPrintf("[DexFile: %s dex-checksum=%08x location-checksum=%08x %p-%p]", |
| 956 | dex_file.GetLocation().c_str(), |
| 957 | dex_file.GetHeader().checksum_, dex_file.GetLocationChecksum(), |
| 958 | dex_file.Begin(), dex_file.Begin() + dex_file.Size()); |
| 959 | return os; |
| 960 | } |
Ian Rogers | d91d6d6 | 2013-09-25 20:26:14 -0700 | [diff] [blame] | 961 | std::string Signature::ToString() const { |
| 962 | if (dex_file_ == nullptr) { |
| 963 | CHECK(proto_id_ == nullptr); |
| 964 | return "<no signature>"; |
| 965 | } |
| 966 | const DexFile::TypeList* params = dex_file_->GetProtoParameters(*proto_id_); |
| 967 | std::string result; |
| 968 | if (params == nullptr) { |
| 969 | result += "()"; |
| 970 | } else { |
| 971 | result += "("; |
| 972 | for (uint32_t i = 0; i < params->Size(); ++i) { |
| 973 | result += dex_file_->StringByTypeIdx(params->GetTypeItem(i).type_idx_); |
| 974 | } |
| 975 | result += ")"; |
| 976 | } |
| 977 | result += dex_file_->StringByTypeIdx(proto_id_->return_type_idx_); |
| 978 | return result; |
| 979 | } |
| 980 | |
Vladimir Marko | d9cffea | 2013-11-25 15:08:02 +0000 | [diff] [blame] | 981 | bool Signature::operator==(const StringPiece& rhs) const { |
| 982 | if (dex_file_ == nullptr) { |
| 983 | return false; |
| 984 | } |
| 985 | StringPiece tail(rhs); |
| 986 | if (!tail.starts_with("(")) { |
| 987 | return false; // Invalid signature |
| 988 | } |
| 989 | tail.remove_prefix(1); // "("; |
| 990 | const DexFile::TypeList* params = dex_file_->GetProtoParameters(*proto_id_); |
| 991 | if (params != nullptr) { |
| 992 | for (uint32_t i = 0; i < params->Size(); ++i) { |
| 993 | StringPiece param(dex_file_->StringByTypeIdx(params->GetTypeItem(i).type_idx_)); |
| 994 | if (!tail.starts_with(param)) { |
| 995 | return false; |
| 996 | } |
| 997 | tail.remove_prefix(param.length()); |
| 998 | } |
| 999 | } |
| 1000 | if (!tail.starts_with(")")) { |
| 1001 | return false; |
| 1002 | } |
| 1003 | tail.remove_prefix(1); // ")"; |
| 1004 | return tail == dex_file_->StringByTypeIdx(proto_id_->return_type_idx_); |
| 1005 | } |
| 1006 | |
Ian Rogers | d91d6d6 | 2013-09-25 20:26:14 -0700 | [diff] [blame] | 1007 | std::ostream& operator<<(std::ostream& os, const Signature& sig) { |
| 1008 | return os << sig.ToString(); |
| 1009 | } |
| 1010 | |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1011 | // Decodes the header section from the class data bytes. |
| 1012 | void ClassDataItemIterator::ReadClassDataHeader() { |
| 1013 | CHECK(ptr_pos_ != NULL); |
| 1014 | header_.static_fields_size_ = DecodeUnsignedLeb128(&ptr_pos_); |
| 1015 | header_.instance_fields_size_ = DecodeUnsignedLeb128(&ptr_pos_); |
| 1016 | header_.direct_methods_size_ = DecodeUnsignedLeb128(&ptr_pos_); |
| 1017 | header_.virtual_methods_size_ = DecodeUnsignedLeb128(&ptr_pos_); |
| 1018 | } |
| 1019 | |
| 1020 | void ClassDataItemIterator::ReadClassDataField() { |
| 1021 | field_.field_idx_delta_ = DecodeUnsignedLeb128(&ptr_pos_); |
| 1022 | field_.access_flags_ = DecodeUnsignedLeb128(&ptr_pos_); |
Brian Carlstrom | 68adbe4 | 2012-05-11 17:18:08 -0700 | [diff] [blame] | 1023 | if (last_idx_ != 0 && field_.field_idx_delta_ == 0) { |
Andreas Gampe | 4fdbba0 | 2014-06-19 20:24:22 -0700 | [diff] [blame] | 1024 | LOG(WARNING) << "Duplicate field in " << dex_file_.GetLocation(); |
Brian Carlstrom | 6f29d0e | 2012-05-11 15:50:29 -0700 | [diff] [blame] | 1025 | } |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1026 | } |
| 1027 | |
| 1028 | void ClassDataItemIterator::ReadClassDataMethod() { |
| 1029 | method_.method_idx_delta_ = DecodeUnsignedLeb128(&ptr_pos_); |
| 1030 | method_.access_flags_ = DecodeUnsignedLeb128(&ptr_pos_); |
| 1031 | method_.code_off_ = DecodeUnsignedLeb128(&ptr_pos_); |
Brian Carlstrom | 68adbe4 | 2012-05-11 17:18:08 -0700 | [diff] [blame] | 1032 | if (last_idx_ != 0 && method_.method_idx_delta_ == 0) { |
Andreas Gampe | 4fdbba0 | 2014-06-19 20:24:22 -0700 | [diff] [blame] | 1033 | LOG(WARNING) << "Duplicate method in " << dex_file_.GetLocation(); |
Brian Carlstrom | 6f29d0e | 2012-05-11 15:50:29 -0700 | [diff] [blame] | 1034 | } |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1035 | } |
| 1036 | |
| 1037 | // Read a signed integer. "zwidth" is the zero-based byte count. |
| 1038 | static int32_t ReadSignedInt(const byte* ptr, int zwidth) { |
| 1039 | int32_t val = 0; |
| 1040 | for (int i = zwidth; i >= 0; --i) { |
| 1041 | val = ((uint32_t)val >> 8) | (((int32_t)*ptr++) << 24); |
| 1042 | } |
| 1043 | val >>= (3 - zwidth) * 8; |
| 1044 | return val; |
| 1045 | } |
| 1046 | |
| 1047 | // Read an unsigned integer. "zwidth" is the zero-based byte count, |
| 1048 | // "fill_on_right" indicates which side we want to zero-fill from. |
| 1049 | static uint32_t ReadUnsignedInt(const byte* ptr, int zwidth, bool fill_on_right) { |
| 1050 | uint32_t val = 0; |
| 1051 | if (!fill_on_right) { |
| 1052 | for (int i = zwidth; i >= 0; --i) { |
| 1053 | val = (val >> 8) | (((uint32_t)*ptr++) << 24); |
| 1054 | } |
| 1055 | val >>= (3 - zwidth) * 8; |
| 1056 | } else { |
| 1057 | for (int i = zwidth; i >= 0; --i) { |
| 1058 | val = (val >> 8) | (((uint32_t)*ptr++) << 24); |
| 1059 | } |
| 1060 | } |
| 1061 | return val; |
| 1062 | } |
| 1063 | |
| 1064 | // Read a signed long. "zwidth" is the zero-based byte count. |
| 1065 | static int64_t ReadSignedLong(const byte* ptr, int zwidth) { |
| 1066 | int64_t val = 0; |
| 1067 | for (int i = zwidth; i >= 0; --i) { |
| 1068 | val = ((uint64_t)val >> 8) | (((int64_t)*ptr++) << 56); |
| 1069 | } |
| 1070 | val >>= (7 - zwidth) * 8; |
| 1071 | return val; |
| 1072 | } |
| 1073 | |
| 1074 | // Read an unsigned long. "zwidth" is the zero-based byte count, |
| 1075 | // "fill_on_right" indicates which side we want to zero-fill from. |
| 1076 | static uint64_t ReadUnsignedLong(const byte* ptr, int zwidth, bool fill_on_right) { |
| 1077 | uint64_t val = 0; |
| 1078 | if (!fill_on_right) { |
| 1079 | for (int i = zwidth; i >= 0; --i) { |
| 1080 | val = (val >> 8) | (((uint64_t)*ptr++) << 56); |
| 1081 | } |
| 1082 | val >>= (7 - zwidth) * 8; |
| 1083 | } else { |
| 1084 | for (int i = zwidth; i >= 0; --i) { |
| 1085 | val = (val >> 8) | (((uint64_t)*ptr++) << 56); |
| 1086 | } |
| 1087 | } |
| 1088 | return val; |
| 1089 | } |
| 1090 | |
| 1091 | EncodedStaticFieldValueIterator::EncodedStaticFieldValueIterator(const DexFile& dex_file, |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1092 | Handle<mirror::DexCache>* dex_cache, |
| 1093 | Handle<mirror::ClassLoader>* class_loader, |
Ian Rogers | ca19066 | 2012-06-26 15:45:57 -0700 | [diff] [blame] | 1094 | ClassLinker* linker, |
| 1095 | const DexFile::ClassDef& class_def) |
Brian Carlstrom | 88f3654 | 2012-10-16 23:24:21 -0700 | [diff] [blame] | 1096 | : dex_file_(dex_file), dex_cache_(dex_cache), class_loader_(class_loader), linker_(linker), |
| 1097 | array_size_(), pos_(-1), type_(kByte) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1098 | DCHECK(dex_cache != nullptr); |
| 1099 | DCHECK(class_loader != nullptr); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1100 | ptr_ = dex_file.GetEncodedStaticFieldValuesArray(class_def); |
| 1101 | if (ptr_ == NULL) { |
| 1102 | array_size_ = 0; |
| 1103 | } else { |
| 1104 | array_size_ = DecodeUnsignedLeb128(&ptr_); |
| 1105 | } |
| 1106 | if (array_size_ > 0) { |
| 1107 | Next(); |
| 1108 | } |
| 1109 | } |
| 1110 | |
| 1111 | void EncodedStaticFieldValueIterator::Next() { |
| 1112 | pos_++; |
| 1113 | if (pos_ >= array_size_) { |
| 1114 | return; |
| 1115 | } |
| 1116 | byte value_type = *ptr_++; |
| 1117 | byte value_arg = value_type >> kEncodedValueArgShift; |
| 1118 | size_t width = value_arg + 1; // assume and correct later |
Brian Carlstrom | 88f3654 | 2012-10-16 23:24:21 -0700 | [diff] [blame] | 1119 | type_ = static_cast<ValueType>(value_type & kEncodedValueTypeMask); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1120 | switch (type_) { |
| 1121 | case kBoolean: |
| 1122 | jval_.i = (value_arg != 0) ? 1 : 0; |
| 1123 | width = 0; |
| 1124 | break; |
| 1125 | case kByte: |
| 1126 | jval_.i = ReadSignedInt(ptr_, value_arg); |
| 1127 | CHECK(IsInt(8, jval_.i)); |
| 1128 | break; |
| 1129 | case kShort: |
| 1130 | jval_.i = ReadSignedInt(ptr_, value_arg); |
| 1131 | CHECK(IsInt(16, jval_.i)); |
| 1132 | break; |
| 1133 | case kChar: |
| 1134 | jval_.i = ReadUnsignedInt(ptr_, value_arg, false); |
| 1135 | CHECK(IsUint(16, jval_.i)); |
| 1136 | break; |
| 1137 | case kInt: |
| 1138 | jval_.i = ReadSignedInt(ptr_, value_arg); |
| 1139 | break; |
| 1140 | case kLong: |
| 1141 | jval_.j = ReadSignedLong(ptr_, value_arg); |
| 1142 | break; |
| 1143 | case kFloat: |
| 1144 | jval_.i = ReadUnsignedInt(ptr_, value_arg, true); |
| 1145 | break; |
| 1146 | case kDouble: |
| 1147 | jval_.j = ReadUnsignedLong(ptr_, value_arg, true); |
| 1148 | break; |
| 1149 | case kString: |
| 1150 | case kType: |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1151 | jval_.i = ReadUnsignedInt(ptr_, value_arg, false); |
| 1152 | break; |
| 1153 | case kField: |
Brian Carlstrom | 88f3654 | 2012-10-16 23:24:21 -0700 | [diff] [blame] | 1154 | case kMethod: |
| 1155 | case kEnum: |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1156 | case kArray: |
| 1157 | case kAnnotation: |
| 1158 | UNIMPLEMENTED(FATAL) << ": type " << type_; |
| 1159 | break; |
| 1160 | case kNull: |
| 1161 | jval_.l = NULL; |
| 1162 | width = 0; |
| 1163 | break; |
| 1164 | default: |
| 1165 | LOG(FATAL) << "Unreached"; |
| 1166 | } |
| 1167 | ptr_ += width; |
| 1168 | } |
| 1169 | |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 1170 | template<bool kTransactionActive> |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1171 | void EncodedStaticFieldValueIterator::ReadValueToField(mirror::ArtField* field) const { |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1172 | switch (type_) { |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 1173 | case kBoolean: field->SetBoolean<kTransactionActive>(field->GetDeclaringClass(), jval_.z); break; |
| 1174 | case kByte: field->SetByte<kTransactionActive>(field->GetDeclaringClass(), jval_.b); break; |
| 1175 | case kShort: field->SetShort<kTransactionActive>(field->GetDeclaringClass(), jval_.s); break; |
| 1176 | case kChar: field->SetChar<kTransactionActive>(field->GetDeclaringClass(), jval_.c); break; |
| 1177 | case kInt: field->SetInt<kTransactionActive>(field->GetDeclaringClass(), jval_.i); break; |
| 1178 | case kLong: field->SetLong<kTransactionActive>(field->GetDeclaringClass(), jval_.j); break; |
| 1179 | case kFloat: field->SetFloat<kTransactionActive>(field->GetDeclaringClass(), jval_.f); break; |
| 1180 | case kDouble: field->SetDouble<kTransactionActive>(field->GetDeclaringClass(), jval_.d); break; |
| 1181 | case kNull: field->SetObject<kTransactionActive>(field->GetDeclaringClass(), NULL); break; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1182 | case kString: { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1183 | CHECK(!kMovingFields); |
| 1184 | mirror::String* resolved = linker_->ResolveString(dex_file_, jval_.i, *dex_cache_); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 1185 | field->SetObject<kTransactionActive>(field->GetDeclaringClass(), resolved); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1186 | break; |
| 1187 | } |
Brian Carlstrom | 88f3654 | 2012-10-16 23:24:21 -0700 | [diff] [blame] | 1188 | case kType: { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1189 | CHECK(!kMovingFields); |
| 1190 | mirror::Class* resolved = linker_->ResolveType(dex_file_, jval_.i, *dex_cache_, |
| 1191 | *class_loader_); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 1192 | field->SetObject<kTransactionActive>(field->GetDeclaringClass(), resolved); |
Brian Carlstrom | 88f3654 | 2012-10-16 23:24:21 -0700 | [diff] [blame] | 1193 | break; |
| 1194 | } |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1195 | default: UNIMPLEMENTED(FATAL) << ": type " << type_; |
| 1196 | } |
| 1197 | } |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 1198 | template void EncodedStaticFieldValueIterator::ReadValueToField<true>(mirror::ArtField* field) const; |
| 1199 | template void EncodedStaticFieldValueIterator::ReadValueToField<false>(mirror::ArtField* field) const; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1200 | |
| 1201 | CatchHandlerIterator::CatchHandlerIterator(const DexFile::CodeItem& code_item, uint32_t address) { |
| 1202 | handler_.address_ = -1; |
| 1203 | int32_t offset = -1; |
| 1204 | |
| 1205 | // Short-circuit the overwhelmingly common cases. |
| 1206 | switch (code_item.tries_size_) { |
| 1207 | case 0: |
| 1208 | break; |
| 1209 | case 1: { |
| 1210 | const DexFile::TryItem* tries = DexFile::GetTryItems(code_item, 0); |
| 1211 | uint32_t start = tries->start_addr_; |
| 1212 | if (address >= start) { |
| 1213 | uint32_t end = start + tries->insn_count_; |
| 1214 | if (address < end) { |
| 1215 | offset = tries->handler_off_; |
| 1216 | } |
| 1217 | } |
| 1218 | break; |
| 1219 | } |
| 1220 | default: |
Ian Rogers | dbbc99d | 2013-04-18 16:51:54 -0700 | [diff] [blame] | 1221 | offset = DexFile::FindCatchHandlerOffset(code_item, address); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1222 | } |
Logan Chien | 736df02 | 2012-04-27 16:25:57 +0800 | [diff] [blame] | 1223 | Init(code_item, offset); |
| 1224 | } |
| 1225 | |
| 1226 | CatchHandlerIterator::CatchHandlerIterator(const DexFile::CodeItem& code_item, |
| 1227 | const DexFile::TryItem& try_item) { |
| 1228 | handler_.address_ = -1; |
| 1229 | Init(code_item, try_item.handler_off_); |
| 1230 | } |
| 1231 | |
| 1232 | void CatchHandlerIterator::Init(const DexFile::CodeItem& code_item, |
| 1233 | int32_t offset) { |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1234 | if (offset >= 0) { |
Logan Chien | 736df02 | 2012-04-27 16:25:57 +0800 | [diff] [blame] | 1235 | Init(DexFile::GetCatchHandlerData(code_item, offset)); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1236 | } else { |
| 1237 | // Not found, initialize as empty |
| 1238 | current_data_ = NULL; |
| 1239 | remaining_count_ = -1; |
| 1240 | catch_all_ = false; |
| 1241 | DCHECK(!HasNext()); |
| 1242 | } |
| 1243 | } |
| 1244 | |
| 1245 | void CatchHandlerIterator::Init(const byte* handler_data) { |
| 1246 | current_data_ = handler_data; |
| 1247 | remaining_count_ = DecodeSignedLeb128(¤t_data_); |
| 1248 | |
| 1249 | // If remaining_count_ is non-positive, then it is the negative of |
| 1250 | // the number of catch types, and the catches are followed by a |
| 1251 | // catch-all handler. |
| 1252 | if (remaining_count_ <= 0) { |
| 1253 | catch_all_ = true; |
| 1254 | remaining_count_ = -remaining_count_; |
| 1255 | } else { |
| 1256 | catch_all_ = false; |
| 1257 | } |
| 1258 | Next(); |
| 1259 | } |
| 1260 | |
| 1261 | void CatchHandlerIterator::Next() { |
| 1262 | if (remaining_count_ > 0) { |
| 1263 | handler_.type_idx_ = DecodeUnsignedLeb128(¤t_data_); |
| 1264 | handler_.address_ = DecodeUnsignedLeb128(¤t_data_); |
| 1265 | remaining_count_--; |
| 1266 | return; |
| 1267 | } |
| 1268 | |
| 1269 | if (catch_all_) { |
| 1270 | handler_.type_idx_ = DexFile::kDexNoIndex16; |
| 1271 | handler_.address_ = DecodeUnsignedLeb128(¤t_data_); |
| 1272 | catch_all_ = false; |
| 1273 | return; |
| 1274 | } |
| 1275 | |
| 1276 | // no more handler |
| 1277 | remaining_count_ = -1; |
| 1278 | } |
| 1279 | |
Carl Shapiro | 1fb8620 | 2011-06-27 17:43:13 -0700 | [diff] [blame] | 1280 | } // namespace art |