dex2oat.cc revision 57b34294758e9c00993913ebe43c7ee4698a5cc6
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 */ 16 17#include <stdio.h> 18#include <stdlib.h> 19#include <sys/stat.h> 20#include <valgrind.h> 21 22#include <fstream> 23#include <iostream> 24#include <sstream> 25#include <string> 26#include <vector> 27 28#if defined(__linux__) && defined(__arm__) 29#include <sys/personality.h> 30#include <sys/utsname.h> 31#endif 32 33#define ATRACE_TAG ATRACE_TAG_DALVIK 34#include <cutils/trace.h> 35 36#include "arch/instruction_set_features.h" 37#include "arch/mips/instruction_set_features_mips.h" 38#include "base/dumpable.h" 39#include "base/stl_util.h" 40#include "base/stringpiece.h" 41#include "base/timing_logger.h" 42#include "base/unix_file/fd_file.h" 43#include "class_linker.h" 44#include "compiler.h" 45#include "compiler_callbacks.h" 46#include "dex_file-inl.h" 47#include "dex/pass_driver_me_opts.h" 48#include "dex/verification_results.h" 49#include "dex/quick_compiler_callbacks.h" 50#include "dex/quick/dex_file_to_method_inliner_map.h" 51#include "driver/compiler_driver.h" 52#include "driver/compiler_options.h" 53#include "elf_file.h" 54#include "elf_writer.h" 55#include "gc/space/image_space.h" 56#include "gc/space/space-inl.h" 57#include "image_writer.h" 58#include "leb128.h" 59#include "mirror/art_method-inl.h" 60#include "mirror/class-inl.h" 61#include "mirror/class_loader.h" 62#include "mirror/object-inl.h" 63#include "mirror/object_array-inl.h" 64#include "oat_writer.h" 65#include "os.h" 66#include "runtime.h" 67#include "ScopedLocalRef.h" 68#include "scoped_thread_state_change.h" 69#include "utils.h" 70#include "vector_output_stream.h" 71#include "well_known_classes.h" 72#include "zip_archive.h" 73 74namespace art { 75 76static int original_argc; 77static char** original_argv; 78 79static std::string CommandLine() { 80 std::vector<std::string> command; 81 for (int i = 0; i < original_argc; ++i) { 82 command.push_back(original_argv[i]); 83 } 84 return Join(command, ' '); 85} 86 87static void UsageErrorV(const char* fmt, va_list ap) { 88 std::string error; 89 StringAppendV(&error, fmt, ap); 90 LOG(ERROR) << error; 91} 92 93static void UsageError(const char* fmt, ...) { 94 va_list ap; 95 va_start(ap, fmt); 96 UsageErrorV(fmt, ap); 97 va_end(ap); 98} 99 100[[noreturn]] static void Usage(const char* fmt, ...) { 101 va_list ap; 102 va_start(ap, fmt); 103 UsageErrorV(fmt, ap); 104 va_end(ap); 105 106 UsageError("Command: %s", CommandLine().c_str()); 107 108 UsageError("Usage: dex2oat [options]..."); 109 UsageError(""); 110 UsageError(" --dex-file=<dex-file>: specifies a .dex file to compile."); 111 UsageError(" Example: --dex-file=/system/framework/core.jar"); 112 UsageError(""); 113 UsageError(" --zip-fd=<file-descriptor>: specifies a file descriptor of a zip file"); 114 UsageError(" containing a classes.dex file to compile."); 115 UsageError(" Example: --zip-fd=5"); 116 UsageError(""); 117 UsageError(" --zip-location=<zip-location>: specifies a symbolic name for the file"); 118 UsageError(" corresponding to the file descriptor specified by --zip-fd."); 119 UsageError(" Example: --zip-location=/system/app/Calculator.apk"); 120 UsageError(""); 121 UsageError(" --oat-file=<file.oat>: specifies the oat output destination via a filename."); 122 UsageError(" Example: --oat-file=/system/framework/boot.oat"); 123 UsageError(""); 124 UsageError(" --oat-fd=<number>: specifies the oat output destination via a file descriptor."); 125 UsageError(" Example: --oat-fd=6"); 126 UsageError(""); 127 UsageError(" --oat-location=<oat-name>: specifies a symbolic name for the file corresponding"); 128 UsageError(" to the file descriptor specified by --oat-fd."); 129 UsageError(" Example: --oat-location=/data/dalvik-cache/system@app@Calculator.apk.oat"); 130 UsageError(""); 131 UsageError(" --oat-symbols=<file.oat>: specifies the oat output destination with full symbols."); 132 UsageError(" Example: --oat-symbols=/symbols/system/framework/boot.oat"); 133 UsageError(""); 134 UsageError(" --image=<file.art>: specifies the output image filename."); 135 UsageError(" Example: --image=/system/framework/boot.art"); 136 UsageError(""); 137 UsageError(" --image-classes=<classname-file>: specifies classes to include in an image."); 138 UsageError(" Example: --image=frameworks/base/preloaded-classes"); 139 UsageError(""); 140 UsageError(" --base=<hex-address>: specifies the base address when creating a boot image."); 141 UsageError(" Example: --base=0x50000000"); 142 UsageError(""); 143 UsageError(" --boot-image=<file.art>: provide the image file for the boot class path."); 144 UsageError(" Example: --boot-image=/system/framework/boot.art"); 145 UsageError(" Default: $ANDROID_ROOT/system/framework/boot.art"); 146 UsageError(""); 147 UsageError(" --android-root=<path>: used to locate libraries for portable linking."); 148 UsageError(" Example: --android-root=out/host/linux-x86"); 149 UsageError(" Default: $ANDROID_ROOT"); 150 UsageError(""); 151 UsageError(" --instruction-set=(arm|arm64|mips|mips64|x86|x86_64): compile for a particular"); 152 UsageError(" instruction set."); 153 UsageError(" Example: --instruction-set=x86"); 154 UsageError(" Default: arm"); 155 UsageError(""); 156 UsageError(" --instruction-set-features=...,: Specify instruction set features"); 157 UsageError(" Example: --instruction-set-features=div"); 158 UsageError(" Default: default"); 159 UsageError(""); 160 UsageError(" --compile-pic: Force indirect use of code, methods, and classes"); 161 UsageError(" Default: disabled"); 162 UsageError(""); 163 UsageError(" --compiler-backend=(Quick|Optimizing): select compiler backend"); 164 UsageError(" set."); 165 UsageError(" Example: --compiler-backend=Optimizing"); 166 if (kUseOptimizingCompiler) { 167 UsageError(" Default: Optimizing"); 168 } else { 169 UsageError(" Default: Quick"); 170 } 171 UsageError(""); 172 UsageError(" --compiler-filter=" 173 "(verify-none" 174 "|interpret-only" 175 "|space" 176 "|balanced" 177 "|speed" 178 "|everything" 179 "|time):"); 180 UsageError(" select compiler filter."); 181 UsageError(" Example: --compiler-filter=everything"); 182#if ART_SMALL_MODE 183 UsageError(" Default: interpret-only"); 184#else 185 UsageError(" Default: speed"); 186#endif 187 UsageError(""); 188 UsageError(" --huge-method-max=<method-instruction-count>: the threshold size for a huge"); 189 UsageError(" method for compiler filter tuning."); 190 UsageError(" Example: --huge-method-max=%d", CompilerOptions::kDefaultHugeMethodThreshold); 191 UsageError(" Default: %d", CompilerOptions::kDefaultHugeMethodThreshold); 192 UsageError(""); 193 UsageError(" --huge-method-max=<method-instruction-count>: threshold size for a huge"); 194 UsageError(" method for compiler filter tuning."); 195 UsageError(" Example: --huge-method-max=%d", CompilerOptions::kDefaultHugeMethodThreshold); 196 UsageError(" Default: %d", CompilerOptions::kDefaultHugeMethodThreshold); 197 UsageError(""); 198 UsageError(" --large-method-max=<method-instruction-count>: threshold size for a large"); 199 UsageError(" method for compiler filter tuning."); 200 UsageError(" Example: --large-method-max=%d", CompilerOptions::kDefaultLargeMethodThreshold); 201 UsageError(" Default: %d", CompilerOptions::kDefaultLargeMethodThreshold); 202 UsageError(""); 203 UsageError(" --small-method-max=<method-instruction-count>: threshold size for a small"); 204 UsageError(" method for compiler filter tuning."); 205 UsageError(" Example: --small-method-max=%d", CompilerOptions::kDefaultSmallMethodThreshold); 206 UsageError(" Default: %d", CompilerOptions::kDefaultSmallMethodThreshold); 207 UsageError(""); 208 UsageError(" --tiny-method-max=<method-instruction-count>: threshold size for a tiny"); 209 UsageError(" method for compiler filter tuning."); 210 UsageError(" Example: --tiny-method-max=%d", CompilerOptions::kDefaultTinyMethodThreshold); 211 UsageError(" Default: %d", CompilerOptions::kDefaultTinyMethodThreshold); 212 UsageError(""); 213 UsageError(" --num-dex-methods=<method-count>: threshold size for a small dex file for"); 214 UsageError(" compiler filter tuning. If the input has fewer than this many methods"); 215 UsageError(" and the filter is not interpret-only or verify-none, overrides the"); 216 UsageError(" filter to use speed"); 217 UsageError(" Example: --num-dex-method=%d", CompilerOptions::kDefaultNumDexMethodsThreshold); 218 UsageError(" Default: %d", CompilerOptions::kDefaultNumDexMethodsThreshold); 219 UsageError(""); 220 UsageError(" --dump-timing: display a breakdown of where time was spent"); 221 UsageError(""); 222 UsageError(" --include-patch-information: Include patching information so the generated code"); 223 UsageError(" can have its base address moved without full recompilation."); 224 UsageError(""); 225 UsageError(" --no-include-patch-information: Do not include patching information."); 226 UsageError(""); 227 UsageError(" --include-debug-symbols: Include ELF symbols in this oat file"); 228 UsageError(""); 229 UsageError(" --no-include-debug-symbols: Do not include ELF symbols in this oat file"); 230 UsageError(""); 231 UsageError(" --runtime-arg <argument>: used to specify various arguments for the runtime,"); 232 UsageError(" such as initial heap size, maximum heap size, and verbose output."); 233 UsageError(" Use a separate --runtime-arg switch for each argument."); 234 UsageError(" Example: --runtime-arg -Xms256m"); 235 UsageError(""); 236 UsageError(" --profile-file=<filename>: specify profiler output file to use for compilation."); 237 UsageError(""); 238 UsageError(" --print-pass-names: print a list of pass names"); 239 UsageError(""); 240 UsageError(" --disable-passes=<pass-names>: disable one or more passes separated by comma."); 241 UsageError(" Example: --disable-passes=UseCount,BBOptimizations"); 242 UsageError(""); 243 UsageError(" --print-pass-options: print a list of passes that have configurable options along " 244 "with the setting."); 245 UsageError(" Will print default if no overridden setting exists."); 246 UsageError(""); 247 UsageError(" --pass-options=Pass1Name:Pass1OptionName:Pass1Option#," 248 "Pass2Name:Pass2OptionName:Pass2Option#"); 249 UsageError(" Used to specify a pass specific option. The setting itself must be integer."); 250 UsageError(" Separator used between options is a comma."); 251 UsageError(""); 252 UsageError(" --swap-file=<file-name>: specifies a file to use for swap."); 253 UsageError(" Example: --swap-file=/data/tmp/swap.001"); 254 UsageError(""); 255 UsageError(" --swap-fd=<file-descriptor>: specifies a file to use for swap (by descriptor)."); 256 UsageError(" Example: --swap-fd=10"); 257 UsageError(""); 258 std::cerr << "See log for usage error information\n"; 259 exit(EXIT_FAILURE); 260} 261 262// The primary goal of the watchdog is to prevent stuck build servers 263// during development when fatal aborts lead to a cascade of failures 264// that result in a deadlock. 265class WatchDog { 266// WatchDog defines its own CHECK_PTHREAD_CALL to avoid using LOG which uses locks 267#undef CHECK_PTHREAD_CALL 268#define CHECK_WATCH_DOG_PTHREAD_CALL(call, args, what) \ 269 do { \ 270 int rc = call args; \ 271 if (rc != 0) { \ 272 errno = rc; \ 273 std::string message(# call); \ 274 message += " failed for "; \ 275 message += reason; \ 276 Fatal(message); \ 277 } \ 278 } while (false) 279 280 public: 281 explicit WatchDog(bool is_watch_dog_enabled) { 282 is_watch_dog_enabled_ = is_watch_dog_enabled; 283 if (!is_watch_dog_enabled_) { 284 return; 285 } 286 shutting_down_ = false; 287 const char* reason = "dex2oat watch dog thread startup"; 288 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_init, (&mutex_, nullptr), reason); 289 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_cond_init, (&cond_, nullptr), reason); 290 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_attr_init, (&attr_), reason); 291 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_create, (&pthread_, &attr_, &CallBack, this), reason); 292 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_attr_destroy, (&attr_), reason); 293 } 294 ~WatchDog() { 295 if (!is_watch_dog_enabled_) { 296 return; 297 } 298 const char* reason = "dex2oat watch dog thread shutdown"; 299 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_lock, (&mutex_), reason); 300 shutting_down_ = true; 301 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_cond_signal, (&cond_), reason); 302 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_unlock, (&mutex_), reason); 303 304 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_join, (pthread_, nullptr), reason); 305 306 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_cond_destroy, (&cond_), reason); 307 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_destroy, (&mutex_), reason); 308 } 309 310 private: 311 static void* CallBack(void* arg) { 312 WatchDog* self = reinterpret_cast<WatchDog*>(arg); 313 ::art::SetThreadName("dex2oat watch dog"); 314 self->Wait(); 315 return nullptr; 316 } 317 318 static void Message(char severity, const std::string& message) { 319 // TODO: Remove when we switch to LOG when we can guarantee it won't prevent shutdown in error 320 // cases. 321 fprintf(stderr, "dex2oat%s %c %d %d %s\n", 322 kIsDebugBuild ? "d" : "", 323 severity, 324 getpid(), 325 GetTid(), 326 message.c_str()); 327 } 328 329 [[noreturn]] static void Fatal(const std::string& message) { 330 Message('F', message); 331 exit(1); 332 } 333 334 void Wait() { 335 // TODO: tune the multiplier for GC verification, the following is just to make the timeout 336 // large. 337 int64_t multiplier = kVerifyObjectSupport > kVerifyObjectModeFast ? 100 : 1; 338 timespec timeout_ts; 339 InitTimeSpec(true, CLOCK_REALTIME, multiplier * kWatchDogTimeoutSeconds * 1000, 0, &timeout_ts); 340 const char* reason = "dex2oat watch dog thread waiting"; 341 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_lock, (&mutex_), reason); 342 while (!shutting_down_) { 343 int rc = TEMP_FAILURE_RETRY(pthread_cond_timedwait(&cond_, &mutex_, &timeout_ts)); 344 if (rc == ETIMEDOUT) { 345 Fatal(StringPrintf("dex2oat did not finish after %d seconds", kWatchDogTimeoutSeconds)); 346 } else if (rc != 0) { 347 std::string message(StringPrintf("pthread_cond_timedwait failed: %s", 348 strerror(errno))); 349 Fatal(message.c_str()); 350 } 351 } 352 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_unlock, (&mutex_), reason); 353 } 354 355 // When setting timeouts, keep in mind that the build server may not be as fast as your desktop. 356 // Debug builds are slower so they have larger timeouts. 357 static const unsigned int kSlowdownFactor = kIsDebugBuild ? 5U : 1U; 358 359 // 6 minutes scaled by kSlowdownFactor. 360 static const unsigned int kWatchDogTimeoutSeconds = kSlowdownFactor * 6 * 60; 361 362 bool is_watch_dog_enabled_; 363 bool shutting_down_; 364 // TODO: Switch to Mutex when we can guarantee it won't prevent shutdown in error cases. 365 pthread_mutex_t mutex_; 366 pthread_cond_t cond_; 367 pthread_attr_t attr_; 368 pthread_t pthread_; 369}; 370 371static void ParseStringAfterChar(const std::string& s, char c, std::string* parsed_value) { 372 std::string::size_type colon = s.find(c); 373 if (colon == std::string::npos) { 374 Usage("Missing char %c in option %s\n", c, s.c_str()); 375 } 376 // Add one to remove the char we were trimming until. 377 *parsed_value = s.substr(colon + 1); 378} 379 380static void ParseDouble(const std::string& option, char after_char, double min, double max, 381 double* parsed_value) { 382 std::string substring; 383 ParseStringAfterChar(option, after_char, &substring); 384 bool sane_val = true; 385 double value; 386 if (false) { 387 // TODO: this doesn't seem to work on the emulator. b/15114595 388 std::stringstream iss(substring); 389 iss >> value; 390 // Ensure that we have a value, there was no cruft after it and it satisfies a sensible range. 391 sane_val = iss.eof() && (value >= min) && (value <= max); 392 } else { 393 char* end = nullptr; 394 value = strtod(substring.c_str(), &end); 395 sane_val = *end == '\0' && value >= min && value <= max; 396 } 397 if (!sane_val) { 398 Usage("Invalid double value %s for option %s\n", substring.c_str(), option.c_str()); 399 } 400 *parsed_value = value; 401} 402 403static constexpr size_t kMinDexFilesForSwap = 2; 404static constexpr size_t kMinDexFileCumulativeSizeForSwap = 20 * MB; 405 406static bool UseSwap(bool is_image, std::vector<const DexFile*>& dex_files) { 407 if (is_image) { 408 // Don't use swap, we know generation should succeed, and we don't want to slow it down. 409 return false; 410 } 411 if (dex_files.size() < kMinDexFilesForSwap) { 412 // If there are less dex files than the threshold, assume it's gonna be fine. 413 return false; 414 } 415 size_t dex_files_size = 0; 416 for (const auto* dex_file : dex_files) { 417 dex_files_size += dex_file->GetHeader().file_size_; 418 } 419 return dex_files_size >= kMinDexFileCumulativeSizeForSwap; 420} 421 422class Dex2Oat FINAL { 423 public: 424 explicit Dex2Oat(TimingLogger* timings) : 425 compiler_kind_(kUseOptimizingCompiler ? Compiler::kOptimizing : Compiler::kQuick), 426 instruction_set_(kRuntimeISA), 427 // Take the default set of instruction features from the build. 428 method_inliner_map_(), 429 runtime_(nullptr), 430 thread_count_(sysconf(_SC_NPROCESSORS_CONF)), 431 start_ns_(NanoTime()), 432 oat_fd_(-1), 433 zip_fd_(-1), 434 image_base_(0U), 435 image_classes_zip_filename_(nullptr), 436 image_classes_filename_(nullptr), 437 compiled_classes_zip_filename_(nullptr), 438 compiled_classes_filename_(nullptr), 439 image_(false), 440 is_host_(false), 441 dump_stats_(false), 442 dump_passes_(false), 443 dump_timing_(false), 444 dump_slow_timing_(kIsDebugBuild), 445 swap_fd_(-1), 446 timings_(timings) {} 447 448 ~Dex2Oat() { 449 // Free opened dex files before deleting the runtime_, because ~DexFile 450 // uses MemMap, which is shut down by ~Runtime. 451 class_path_files_.clear(); 452 opened_dex_files_.clear(); 453 454 // Log completion time before deleting the runtime_, because this accesses 455 // the runtime. 456 LogCompletionTime(); 457 458 if (kIsDebugBuild || (RUNNING_ON_VALGRIND != 0)) { 459 delete runtime_; // See field declaration for why this is manual. 460 } 461 } 462 463 // Parse the arguments from the command line. In case of an unrecognized option or impossible 464 // values/combinations, a usage error will be displayed and exit() is called. Thus, if the method 465 // returns, arguments have been successfully parsed. 466 void ParseArgs(int argc, char** argv) { 467 original_argc = argc; 468 original_argv = argv; 469 470 InitLogging(argv); 471 472 // Skip over argv[0]. 473 argv++; 474 argc--; 475 476 if (argc == 0) { 477 Usage("No arguments specified"); 478 } 479 480 std::string oat_symbols; 481 std::string boot_image_filename; 482 const char* compiler_filter_string = nullptr; 483 bool compile_pic = false; 484 int huge_method_threshold = CompilerOptions::kDefaultHugeMethodThreshold; 485 int large_method_threshold = CompilerOptions::kDefaultLargeMethodThreshold; 486 int small_method_threshold = CompilerOptions::kDefaultSmallMethodThreshold; 487 int tiny_method_threshold = CompilerOptions::kDefaultTinyMethodThreshold; 488 int num_dex_methods_threshold = CompilerOptions::kDefaultNumDexMethodsThreshold; 489 490 // Profile file to use 491 double top_k_profile_threshold = CompilerOptions::kDefaultTopKProfileThreshold; 492 493 bool print_pass_options = false; 494 bool include_patch_information = CompilerOptions::kDefaultIncludePatchInformation; 495 bool include_debug_symbols = kIsDebugBuild; 496 bool watch_dog_enabled = true; 497 bool generate_gdb_information = kIsDebugBuild; 498 499 std::string error_msg; 500 501 for (int i = 0; i < argc; i++) { 502 const StringPiece option(argv[i]); 503 const bool log_options = false; 504 if (log_options) { 505 LOG(INFO) << "dex2oat: option[" << i << "]=" << argv[i]; 506 } 507 if (option.starts_with("--dex-file=")) { 508 dex_filenames_.push_back(option.substr(strlen("--dex-file=")).data()); 509 } else if (option.starts_with("--dex-location=")) { 510 dex_locations_.push_back(option.substr(strlen("--dex-location=")).data()); 511 } else if (option.starts_with("--zip-fd=")) { 512 const char* zip_fd_str = option.substr(strlen("--zip-fd=")).data(); 513 if (!ParseInt(zip_fd_str, &zip_fd_)) { 514 Usage("Failed to parse --zip-fd argument '%s' as an integer", zip_fd_str); 515 } 516 if (zip_fd_ < 0) { 517 Usage("--zip-fd passed a negative value %d", zip_fd_); 518 } 519 } else if (option.starts_with("--zip-location=")) { 520 zip_location_ = option.substr(strlen("--zip-location=")).data(); 521 } else if (option.starts_with("--oat-file=")) { 522 oat_filename_ = option.substr(strlen("--oat-file=")).data(); 523 } else if (option.starts_with("--oat-symbols=")) { 524 oat_symbols = option.substr(strlen("--oat-symbols=")).data(); 525 } else if (option.starts_with("--oat-fd=")) { 526 const char* oat_fd_str = option.substr(strlen("--oat-fd=")).data(); 527 if (!ParseInt(oat_fd_str, &oat_fd_)) { 528 Usage("Failed to parse --oat-fd argument '%s' as an integer", oat_fd_str); 529 } 530 if (oat_fd_ < 0) { 531 Usage("--oat-fd passed a negative value %d", oat_fd_); 532 } 533 } else if (option == "--watch-dog") { 534 watch_dog_enabled = true; 535 } else if (option == "--no-watch-dog") { 536 watch_dog_enabled = false; 537 } else if (option == "--gen-gdb-info") { 538 generate_gdb_information = true; 539 // Debug symbols are needed for gdb information. 540 include_debug_symbols = true; 541 } else if (option == "--no-gen-gdb-info") { 542 generate_gdb_information = false; 543 } else if (option.starts_with("-j")) { 544 const char* thread_count_str = option.substr(strlen("-j")).data(); 545 if (!ParseUint(thread_count_str, &thread_count_)) { 546 Usage("Failed to parse -j argument '%s' as an integer", thread_count_str); 547 } 548 } else if (option.starts_with("--oat-location=")) { 549 oat_location_ = option.substr(strlen("--oat-location=")).data(); 550 } else if (option.starts_with("--image=")) { 551 image_filename_ = option.substr(strlen("--image=")).data(); 552 } else if (option.starts_with("--image-classes=")) { 553 image_classes_filename_ = option.substr(strlen("--image-classes=")).data(); 554 } else if (option.starts_with("--image-classes-zip=")) { 555 image_classes_zip_filename_ = option.substr(strlen("--image-classes-zip=")).data(); 556 } else if (option.starts_with("--compiled-classes=")) { 557 compiled_classes_filename_ = option.substr(strlen("--compiled-classes=")).data(); 558 } else if (option.starts_with("--compiled-classes-zip=")) { 559 compiled_classes_zip_filename_ = option.substr(strlen("--compiled-classes-zip=")).data(); 560 } else if (option.starts_with("--base=")) { 561 const char* image_base_str = option.substr(strlen("--base=")).data(); 562 char* end; 563 image_base_ = strtoul(image_base_str, &end, 16); 564 if (end == image_base_str || *end != '\0') { 565 Usage("Failed to parse hexadecimal value for option %s", option.data()); 566 } 567 } else if (option.starts_with("--boot-image=")) { 568 boot_image_filename = option.substr(strlen("--boot-image=")).data(); 569 } else if (option.starts_with("--android-root=")) { 570 android_root_ = option.substr(strlen("--android-root=")).data(); 571 } else if (option.starts_with("--instruction-set=")) { 572 StringPiece instruction_set_str = option.substr(strlen("--instruction-set=")).data(); 573 // StringPiece is not necessarily zero-terminated, so need to make a copy and ensure it. 574 std::unique_ptr<char[]> buf(new char[instruction_set_str.length() + 1]); 575 strncpy(buf.get(), instruction_set_str.data(), instruction_set_str.length()); 576 buf.get()[instruction_set_str.length()] = 0; 577 instruction_set_ = GetInstructionSetFromString(buf.get()); 578 // arm actually means thumb2. 579 if (instruction_set_ == InstructionSet::kArm) { 580 instruction_set_ = InstructionSet::kThumb2; 581 } 582 } else if (option.starts_with("--instruction-set-variant=")) { 583 StringPiece str = option.substr(strlen("--instruction-set-variant=")).data(); 584 instruction_set_features_.reset( 585 InstructionSetFeatures::FromVariant(instruction_set_, str.as_string(), &error_msg)); 586 if (instruction_set_features_.get() == nullptr) { 587 Usage("%s", error_msg.c_str()); 588 } 589 } else if (option.starts_with("--instruction-set-features=")) { 590 StringPiece str = option.substr(strlen("--instruction-set-features=")).data(); 591 if (instruction_set_features_.get() == nullptr) { 592 instruction_set_features_.reset( 593 InstructionSetFeatures::FromVariant(instruction_set_, "default", &error_msg)); 594 if (instruction_set_features_.get() == nullptr) { 595 Usage("Problem initializing default instruction set features variant: %s", 596 error_msg.c_str()); 597 } 598 } 599 instruction_set_features_.reset( 600 instruction_set_features_->AddFeaturesFromString(str.as_string(), &error_msg)); 601 if (instruction_set_features_.get() == nullptr) { 602 Usage("Error parsing '%s': %s", option.data(), error_msg.c_str()); 603 } 604 } else if (option.starts_with("--compiler-backend=")) { 605 StringPiece backend_str = option.substr(strlen("--compiler-backend=")).data(); 606 if (backend_str == "Quick") { 607 compiler_kind_ = Compiler::kQuick; 608 } else if (backend_str == "Optimizing") { 609 compiler_kind_ = Compiler::kOptimizing; 610 } else { 611 Usage("Unknown compiler backend: %s", backend_str.data()); 612 } 613 } else if (option.starts_with("--compiler-filter=")) { 614 compiler_filter_string = option.substr(strlen("--compiler-filter=")).data(); 615 } else if (option == "--compile-pic") { 616 compile_pic = true; 617 } else if (option.starts_with("--huge-method-max=")) { 618 const char* threshold = option.substr(strlen("--huge-method-max=")).data(); 619 if (!ParseInt(threshold, &huge_method_threshold)) { 620 Usage("Failed to parse --huge-method-max '%s' as an integer", threshold); 621 } 622 if (huge_method_threshold < 0) { 623 Usage("--huge-method-max passed a negative value %s", huge_method_threshold); 624 } 625 } else if (option.starts_with("--large-method-max=")) { 626 const char* threshold = option.substr(strlen("--large-method-max=")).data(); 627 if (!ParseInt(threshold, &large_method_threshold)) { 628 Usage("Failed to parse --large-method-max '%s' as an integer", threshold); 629 } 630 if (large_method_threshold < 0) { 631 Usage("--large-method-max passed a negative value %s", large_method_threshold); 632 } 633 } else if (option.starts_with("--small-method-max=")) { 634 const char* threshold = option.substr(strlen("--small-method-max=")).data(); 635 if (!ParseInt(threshold, &small_method_threshold)) { 636 Usage("Failed to parse --small-method-max '%s' as an integer", threshold); 637 } 638 if (small_method_threshold < 0) { 639 Usage("--small-method-max passed a negative value %s", small_method_threshold); 640 } 641 } else if (option.starts_with("--tiny-method-max=")) { 642 const char* threshold = option.substr(strlen("--tiny-method-max=")).data(); 643 if (!ParseInt(threshold, &tiny_method_threshold)) { 644 Usage("Failed to parse --tiny-method-max '%s' as an integer", threshold); 645 } 646 if (tiny_method_threshold < 0) { 647 Usage("--tiny-method-max passed a negative value %s", tiny_method_threshold); 648 } 649 } else if (option.starts_with("--num-dex-methods=")) { 650 const char* threshold = option.substr(strlen("--num-dex-methods=")).data(); 651 if (!ParseInt(threshold, &num_dex_methods_threshold)) { 652 Usage("Failed to parse --num-dex-methods '%s' as an integer", threshold); 653 } 654 if (num_dex_methods_threshold < 0) { 655 Usage("--num-dex-methods passed a negative value %s", num_dex_methods_threshold); 656 } 657 } else if (option == "--host") { 658 is_host_ = true; 659 } else if (option == "--runtime-arg") { 660 if (++i >= argc) { 661 Usage("Missing required argument for --runtime-arg"); 662 } 663 if (log_options) { 664 LOG(INFO) << "dex2oat: option[" << i << "]=" << argv[i]; 665 } 666 runtime_args_.push_back(argv[i]); 667 } else if (option == "--dump-timing") { 668 dump_timing_ = true; 669 } else if (option == "--dump-passes") { 670 dump_passes_ = true; 671 } else if (option == "--dump-stats") { 672 dump_stats_ = true; 673 } else if (option == "--include-debug-symbols" || option == "--no-strip-symbols") { 674 include_debug_symbols = true; 675 } else if (option == "--no-include-debug-symbols" || option == "--strip-symbols") { 676 include_debug_symbols = false; 677 generate_gdb_information = false; // Depends on debug symbols, see above. 678 } else if (option.starts_with("--profile-file=")) { 679 profile_file_ = option.substr(strlen("--profile-file=")).data(); 680 VLOG(compiler) << "dex2oat: profile file is " << profile_file_; 681 } else if (option == "--no-profile-file") { 682 // No profile 683 } else if (option.starts_with("--top-k-profile-threshold=")) { 684 ParseDouble(option.data(), '=', 0.0, 100.0, &top_k_profile_threshold); 685 } else if (option == "--print-pass-names") { 686 PassDriverMEOpts::PrintPassNames(); 687 } else if (option.starts_with("--disable-passes=")) { 688 std::string disable_passes = option.substr(strlen("--disable-passes=")).data(); 689 PassDriverMEOpts::CreateDefaultPassList(disable_passes); 690 } else if (option.starts_with("--print-passes=")) { 691 std::string print_passes = option.substr(strlen("--print-passes=")).data(); 692 PassDriverMEOpts::SetPrintPassList(print_passes); 693 } else if (option == "--print-all-passes") { 694 PassDriverMEOpts::SetPrintAllPasses(); 695 } else if (option.starts_with("--dump-cfg-passes=")) { 696 std::string dump_passes_string = option.substr(strlen("--dump-cfg-passes=")).data(); 697 PassDriverMEOpts::SetDumpPassList(dump_passes_string); 698 } else if (option == "--print-pass-options") { 699 print_pass_options = true; 700 } else if (option.starts_with("--pass-options=")) { 701 std::string options = option.substr(strlen("--pass-options=")).data(); 702 PassDriverMEOpts::SetOverriddenPassOptions(options); 703 } else if (option == "--include-patch-information") { 704 include_patch_information = true; 705 } else if (option == "--no-include-patch-information") { 706 include_patch_information = false; 707 } else if (option.starts_with("--verbose-methods=")) { 708 // TODO: rather than switch off compiler logging, make all VLOG(compiler) messages 709 // conditional on having verbost methods. 710 gLogVerbosity.compiler = false; 711 Split(option.substr(strlen("--verbose-methods=")).ToString(), ',', &verbose_methods_); 712 } else if (option.starts_with("--dump-init-failures=")) { 713 std::string file_name = option.substr(strlen("--dump-init-failures=")).data(); 714 init_failure_output_.reset(new std::ofstream(file_name)); 715 if (init_failure_output_.get() == nullptr) { 716 LOG(ERROR) << "Failed to allocate ofstream"; 717 } else if (init_failure_output_->fail()) { 718 LOG(ERROR) << "Failed to open " << file_name << " for writing the initialization " 719 << "failures."; 720 init_failure_output_.reset(); 721 } 722 } else if (option.starts_with("--swap-file=")) { 723 swap_file_name_ = option.substr(strlen("--swap-file=")).data(); 724 } else if (option.starts_with("--swap-fd=")) { 725 const char* swap_fd_str = option.substr(strlen("--swap-fd=")).data(); 726 if (!ParseInt(swap_fd_str, &swap_fd_)) { 727 Usage("Failed to parse --swap-fd argument '%s' as an integer", swap_fd_str); 728 } 729 if (swap_fd_ < 0) { 730 Usage("--swap-fd passed a negative value %d", swap_fd_); 731 } 732 } else { 733 Usage("Unknown argument %s", option.data()); 734 } 735 } 736 737 if (compiler_kind_ == Compiler::kOptimizing) { 738 // Optimizing only supports PIC mode. 739 compile_pic = true; 740 } 741 742 if (oat_filename_.empty() && oat_fd_ == -1) { 743 Usage("Output must be supplied with either --oat-file or --oat-fd"); 744 } 745 746 if (!oat_filename_.empty() && oat_fd_ != -1) { 747 Usage("--oat-file should not be used with --oat-fd"); 748 } 749 750 if (!oat_symbols.empty() && oat_fd_ != -1) { 751 Usage("--oat-symbols should not be used with --oat-fd"); 752 } 753 754 if (!oat_symbols.empty() && is_host_) { 755 Usage("--oat-symbols should not be used with --host"); 756 } 757 758 if (oat_fd_ != -1 && !image_filename_.empty()) { 759 Usage("--oat-fd should not be used with --image"); 760 } 761 762 if (android_root_.empty()) { 763 const char* android_root_env_var = getenv("ANDROID_ROOT"); 764 if (android_root_env_var == nullptr) { 765 Usage("--android-root unspecified and ANDROID_ROOT not set"); 766 } 767 android_root_ += android_root_env_var; 768 } 769 770 image_ = (!image_filename_.empty()); 771 if (!image_ && boot_image_filename.empty()) { 772 boot_image_filename += android_root_; 773 boot_image_filename += "/framework/boot.art"; 774 } 775 if (!boot_image_filename.empty()) { 776 boot_image_option_ += "-Ximage:"; 777 boot_image_option_ += boot_image_filename; 778 } 779 780 if (image_classes_filename_ != nullptr && !image_) { 781 Usage("--image-classes should only be used with --image"); 782 } 783 784 if (image_classes_filename_ != nullptr && !boot_image_option_.empty()) { 785 Usage("--image-classes should not be used with --boot-image"); 786 } 787 788 if (image_classes_zip_filename_ != nullptr && image_classes_filename_ == nullptr) { 789 Usage("--image-classes-zip should be used with --image-classes"); 790 } 791 792 if (compiled_classes_filename_ != nullptr && !image_) { 793 Usage("--compiled-classes should only be used with --image"); 794 } 795 796 if (compiled_classes_filename_ != nullptr && !boot_image_option_.empty()) { 797 Usage("--compiled-classes should not be used with --boot-image"); 798 } 799 800 if (compiled_classes_zip_filename_ != nullptr && compiled_classes_filename_ == nullptr) { 801 Usage("--compiled-classes-zip should be used with --compiled-classes"); 802 } 803 804 if (dex_filenames_.empty() && zip_fd_ == -1) { 805 Usage("Input must be supplied with either --dex-file or --zip-fd"); 806 } 807 808 if (!dex_filenames_.empty() && zip_fd_ != -1) { 809 Usage("--dex-file should not be used with --zip-fd"); 810 } 811 812 if (!dex_filenames_.empty() && !zip_location_.empty()) { 813 Usage("--dex-file should not be used with --zip-location"); 814 } 815 816 if (dex_locations_.empty()) { 817 for (const char* dex_file_name : dex_filenames_) { 818 dex_locations_.push_back(dex_file_name); 819 } 820 } else if (dex_locations_.size() != dex_filenames_.size()) { 821 Usage("--dex-location arguments do not match --dex-file arguments"); 822 } 823 824 if (zip_fd_ != -1 && zip_location_.empty()) { 825 Usage("--zip-location should be supplied with --zip-fd"); 826 } 827 828 if (boot_image_option_.empty()) { 829 if (image_base_ == 0) { 830 Usage("Non-zero --base not specified"); 831 } 832 } 833 834 oat_stripped_ = oat_filename_; 835 if (!oat_symbols.empty()) { 836 oat_unstripped_ = oat_symbols; 837 } else { 838 oat_unstripped_ = oat_filename_; 839 } 840 841 // If no instruction set feature was given, use the default one for the target 842 // instruction set. 843 if (instruction_set_features_.get() == nullptr) { 844 instruction_set_features_.reset( 845 InstructionSetFeatures::FromVariant(instruction_set_, "default", &error_msg)); 846 if (instruction_set_features_.get() == nullptr) { 847 Usage("Problem initializing default instruction set features variant: %s", 848 error_msg.c_str()); 849 } 850 } 851 852 if (instruction_set_ == kRuntimeISA) { 853 std::unique_ptr<const InstructionSetFeatures> runtime_features( 854 InstructionSetFeatures::FromCppDefines()); 855 if (!instruction_set_features_->Equals(runtime_features.get())) { 856 LOG(WARNING) << "Mismatch between dex2oat instruction set features (" 857 << *instruction_set_features_ << ") and those of dex2oat executable (" 858 << *runtime_features <<") for the command line:\n" 859 << CommandLine(); 860 } 861 } 862 863 if (compiler_filter_string == nullptr) { 864 if (instruction_set_ == kMips && 865 reinterpret_cast<const MipsInstructionSetFeatures*>(instruction_set_features_.get())-> 866 IsR6()) { 867 // For R6, only interpreter mode is working. 868 // TODO: fix compiler for Mips32r6. 869 compiler_filter_string = "interpret-only"; 870 } else if (instruction_set_ == kMips64) { 871 // For Mips64, can only compile in interpreter mode. 872 // TODO: fix compiler for Mips64. 873 compiler_filter_string = "interpret-only"; 874 } else if (image_) { 875 compiler_filter_string = "speed"; 876 } else { 877 // TODO: Migrate SMALL mode to command line option. 878 #if ART_SMALL_MODE 879 compiler_filter_string = "interpret-only"; 880 #else 881 compiler_filter_string = "speed"; 882 #endif 883 } 884 } 885 CHECK(compiler_filter_string != nullptr); 886 CompilerOptions::CompilerFilter compiler_filter = CompilerOptions::kDefaultCompilerFilter; 887 if (strcmp(compiler_filter_string, "verify-none") == 0) { 888 compiler_filter = CompilerOptions::kVerifyNone; 889 } else if (strcmp(compiler_filter_string, "interpret-only") == 0) { 890 compiler_filter = CompilerOptions::kInterpretOnly; 891 } else if (strcmp(compiler_filter_string, "space") == 0) { 892 compiler_filter = CompilerOptions::kSpace; 893 } else if (strcmp(compiler_filter_string, "balanced") == 0) { 894 compiler_filter = CompilerOptions::kBalanced; 895 } else if (strcmp(compiler_filter_string, "speed") == 0) { 896 compiler_filter = CompilerOptions::kSpeed; 897 } else if (strcmp(compiler_filter_string, "everything") == 0) { 898 compiler_filter = CompilerOptions::kEverything; 899 } else if (strcmp(compiler_filter_string, "time") == 0) { 900 compiler_filter = CompilerOptions::kTime; 901 } else { 902 Usage("Unknown --compiler-filter value %s", compiler_filter_string); 903 } 904 905 // Checks are all explicit until we know the architecture. 906 bool implicit_null_checks = false; 907 bool implicit_so_checks = false; 908 bool implicit_suspend_checks = false; 909 // Set the compilation target's implicit checks options. 910 switch (instruction_set_) { 911 case kArm: 912 case kThumb2: 913 case kArm64: 914 case kX86: 915 case kX86_64: 916 implicit_null_checks = true; 917 implicit_so_checks = true; 918 break; 919 920 default: 921 // Defaults are correct. 922 break; 923 } 924 925 if (print_pass_options) { 926 PassDriverMEOpts::PrintPassOptions(); 927 } 928 929 compiler_options_.reset(new CompilerOptions(compiler_filter, 930 huge_method_threshold, 931 large_method_threshold, 932 small_method_threshold, 933 tiny_method_threshold, 934 num_dex_methods_threshold, 935 generate_gdb_information, 936 include_patch_information, 937 top_k_profile_threshold, 938 include_debug_symbols, 939 implicit_null_checks, 940 implicit_so_checks, 941 implicit_suspend_checks, 942 compile_pic, 943 verbose_methods_.empty() ? 944 nullptr : 945 &verbose_methods_, 946 init_failure_output_.get())); 947 948 // Done with usage checks, enable watchdog if requested 949 if (watch_dog_enabled) { 950 watchdog_.reset(new WatchDog(true)); 951 } 952 953 // Fill some values into the key-value store for the oat header. 954 key_value_store_.reset(new SafeMap<std::string, std::string>()); 955 956 // Insert some compiler things. 957 { 958 std::ostringstream oss; 959 for (int i = 0; i < argc; ++i) { 960 if (i > 0) { 961 oss << ' '; 962 } 963 oss << argv[i]; 964 } 965 key_value_store_->Put(OatHeader::kDex2OatCmdLineKey, oss.str()); 966 oss.str(""); // Reset. 967 oss << kRuntimeISA; 968 key_value_store_->Put(OatHeader::kDex2OatHostKey, oss.str()); 969 key_value_store_->Put(OatHeader::kPicKey, compile_pic ? "true" : "false"); 970 } 971 } 972 973 // Check whether the oat output file is writable, and open it for later. Also open a swap file, 974 // if a name is given. 975 bool OpenFile() { 976 bool create_file = !oat_unstripped_.empty(); // as opposed to using open file descriptor 977 if (create_file) { 978 oat_file_.reset(OS::CreateEmptyFile(oat_unstripped_.c_str())); 979 if (oat_location_.empty()) { 980 oat_location_ = oat_filename_; 981 } 982 } else { 983 oat_file_.reset(new File(oat_fd_, oat_location_, true)); 984 oat_file_->DisableAutoClose(); 985 if (oat_file_->SetLength(0) != 0) { 986 PLOG(WARNING) << "Truncating oat file " << oat_location_ << " failed."; 987 } 988 } 989 if (oat_file_.get() == nullptr) { 990 PLOG(ERROR) << "Failed to create oat file: " << oat_location_; 991 return false; 992 } 993 if (create_file && fchmod(oat_file_->Fd(), 0644) != 0) { 994 PLOG(ERROR) << "Failed to make oat file world readable: " << oat_location_; 995 oat_file_->Erase(); 996 return false; 997 } 998 999 // Swap file handling. 1000 // 1001 // If the swap fd is not -1, we assume this is the file descriptor of an open but unlinked file 1002 // that we can use for swap. 1003 // 1004 // If the swap fd is -1 and we have a swap-file string, open the given file as a swap file. We 1005 // will immediately unlink to satisfy the swap fd assumption. 1006 if (swap_fd_ == -1 && !swap_file_name_.empty()) { 1007 std::unique_ptr<File> swap_file(OS::CreateEmptyFile(swap_file_name_.c_str())); 1008 if (swap_file.get() == nullptr) { 1009 PLOG(ERROR) << "Failed to create swap file: " << swap_file_name_; 1010 return false; 1011 } 1012 swap_fd_ = swap_file->Fd(); 1013 swap_file->MarkUnchecked(); // We don't we to track this, it will be unlinked immediately. 1014 swap_file->DisableAutoClose(); // We'll handle it ourselves, the File object will be 1015 // released immediately. 1016 unlink(swap_file_name_.c_str()); 1017 } 1018 1019 return true; 1020 } 1021 1022 void EraseOatFile() { 1023 DCHECK(oat_file_.get() != nullptr); 1024 oat_file_->Erase(); 1025 oat_file_.reset(); 1026 } 1027 1028 // Set up the environment for compilation. Includes starting the runtime and loading/opening the 1029 // boot class path. 1030 bool Setup() { 1031 TimingLogger::ScopedTiming t("dex2oat Setup", timings_); 1032 RuntimeOptions runtime_options; 1033 art::MemMap::Init(); // For ZipEntry::ExtractToMemMap. 1034 if (boot_image_option_.empty()) { 1035 std::string boot_class_path = "-Xbootclasspath:"; 1036 boot_class_path += Join(dex_filenames_, ':'); 1037 runtime_options.push_back(std::make_pair(boot_class_path, nullptr)); 1038 std::string boot_class_path_locations = "-Xbootclasspath-locations:"; 1039 boot_class_path_locations += Join(dex_locations_, ':'); 1040 runtime_options.push_back(std::make_pair(boot_class_path_locations, nullptr)); 1041 } else { 1042 runtime_options.push_back(std::make_pair(boot_image_option_, nullptr)); 1043 } 1044 for (size_t i = 0; i < runtime_args_.size(); i++) { 1045 runtime_options.push_back(std::make_pair(runtime_args_[i], nullptr)); 1046 } 1047 1048 verification_results_.reset(new VerificationResults(compiler_options_.get())); 1049 callbacks_.reset(new QuickCompilerCallbacks(verification_results_.get(), &method_inliner_map_)); 1050 runtime_options.push_back(std::make_pair("compilercallbacks", callbacks_.get())); 1051 runtime_options.push_back( 1052 std::make_pair("imageinstructionset", GetInstructionSetString(instruction_set_))); 1053 1054 if (!CreateRuntime(runtime_options)) { 1055 return false; 1056 } 1057 1058 // Runtime::Create acquired the mutator_lock_ that is normally given away when we 1059 // Runtime::Start, give it away now so that we don't starve GC. 1060 Thread* self = Thread::Current(); 1061 self->TransitionFromRunnableToSuspended(kNative); 1062 // If we're doing the image, override the compiler filter to force full compilation. Must be 1063 // done ahead of WellKnownClasses::Init that causes verification. Note: doesn't force 1064 // compilation of class initializers. 1065 // Whilst we're in native take the opportunity to initialize well known classes. 1066 WellKnownClasses::Init(self->GetJniEnv()); 1067 1068 // If --image-classes was specified, calculate the full list of classes to include in the image 1069 if (image_classes_filename_ != nullptr) { 1070 std::string error_msg; 1071 if (image_classes_zip_filename_ != nullptr) { 1072 image_classes_.reset(ReadImageClassesFromZip(image_classes_zip_filename_, 1073 image_classes_filename_, 1074 &error_msg)); 1075 } else { 1076 image_classes_.reset(ReadImageClassesFromFile(image_classes_filename_)); 1077 } 1078 if (image_classes_.get() == nullptr) { 1079 LOG(ERROR) << "Failed to create list of image classes from '" << image_classes_filename_ << 1080 "': " << error_msg; 1081 return false; 1082 } 1083 } else if (image_) { 1084 image_classes_.reset(new std::set<std::string>); 1085 } 1086 // If --compiled-classes was specified, calculate the full list of classes to compile in the 1087 // image. 1088 if (compiled_classes_filename_ != nullptr) { 1089 std::string error_msg; 1090 if (compiled_classes_zip_filename_ != nullptr) { 1091 compiled_classes_.reset(ReadImageClassesFromZip(compiled_classes_zip_filename_, 1092 compiled_classes_filename_, 1093 &error_msg)); 1094 } else { 1095 compiled_classes_.reset(ReadImageClassesFromFile(compiled_classes_filename_)); 1096 } 1097 if (compiled_classes_.get() == nullptr) { 1098 LOG(ERROR) << "Failed to create list of compiled classes from '" 1099 << compiled_classes_filename_ << "': " << error_msg; 1100 return false; 1101 } 1102 } else if (image_) { 1103 compiled_classes_.reset(nullptr); // By default compile everything. 1104 } 1105 1106 if (boot_image_option_.empty()) { 1107 dex_files_ = Runtime::Current()->GetClassLinker()->GetBootClassPath(); 1108 } else { 1109 if (dex_filenames_.empty()) { 1110 ATRACE_BEGIN("Opening zip archive from file descriptor"); 1111 std::string error_msg; 1112 std::unique_ptr<ZipArchive> zip_archive(ZipArchive::OpenFromFd(zip_fd_, 1113 zip_location_.c_str(), 1114 &error_msg)); 1115 if (zip_archive.get() == nullptr) { 1116 LOG(ERROR) << "Failed to open zip from file descriptor for '" << zip_location_ << "': " 1117 << error_msg; 1118 return false; 1119 } 1120 if (!DexFile::OpenFromZip(*zip_archive.get(), zip_location_, &error_msg, &opened_dex_files_)) { 1121 LOG(ERROR) << "Failed to open dex from file descriptor for zip file '" << zip_location_ 1122 << "': " << error_msg; 1123 return false; 1124 } 1125 for (auto& dex_file : opened_dex_files_) { 1126 dex_files_.push_back(dex_file.get()); 1127 } 1128 ATRACE_END(); 1129 } else { 1130 size_t failure_count = OpenDexFiles(dex_filenames_, dex_locations_, &opened_dex_files_); 1131 if (failure_count > 0) { 1132 LOG(ERROR) << "Failed to open some dex files: " << failure_count; 1133 return false; 1134 } 1135 for (auto& dex_file : opened_dex_files_) { 1136 dex_files_.push_back(dex_file.get()); 1137 } 1138 } 1139 1140 constexpr bool kSaveDexInput = false; 1141 if (kSaveDexInput) { 1142 for (size_t i = 0; i < dex_files_.size(); ++i) { 1143 const DexFile* dex_file = dex_files_[i]; 1144 std::string tmp_file_name(StringPrintf("/data/local/tmp/dex2oat.%d.%zd.dex", 1145 getpid(), i)); 1146 std::unique_ptr<File> tmp_file(OS::CreateEmptyFile(tmp_file_name.c_str())); 1147 if (tmp_file.get() == nullptr) { 1148 PLOG(ERROR) << "Failed to open file " << tmp_file_name 1149 << ". Try: adb shell chmod 777 /data/local/tmp"; 1150 continue; 1151 } 1152 // This is just dumping files for debugging. Ignore errors, and leave remnants. 1153 UNUSED(tmp_file->WriteFully(dex_file->Begin(), dex_file->Size())); 1154 UNUSED(tmp_file->Flush()); 1155 UNUSED(tmp_file->Close()); 1156 LOG(INFO) << "Wrote input to " << tmp_file_name; 1157 } 1158 } 1159 } 1160 // Ensure opened dex files are writable for dex-to-dex transformations. 1161 for (const auto& dex_file : dex_files_) { 1162 if (!dex_file->EnableWrite()) { 1163 PLOG(ERROR) << "Failed to make .dex file writeable '" << dex_file->GetLocation() << "'\n"; 1164 } 1165 } 1166 1167 // If we use a swap file, ensure we are above the threshold to make it necessary. 1168 if (swap_fd_ != -1) { 1169 if (!UseSwap(image_, dex_files_)) { 1170 close(swap_fd_); 1171 swap_fd_ = -1; 1172 LOG(INFO) << "Decided to run without swap."; 1173 } else { 1174 LOG(INFO) << "Accepted running with swap."; 1175 } 1176 } 1177 // Note that dex2oat won't close the swap_fd_. The compiler driver's swap space will do that. 1178 1179 /* 1180 * If we're not in interpret-only or verify-none mode, go ahead and compile small applications. 1181 * Don't bother to check if we're doing the image. 1182 */ 1183 if (!image_ && 1184 compiler_options_->IsCompilationEnabled() && 1185 compiler_kind_ == Compiler::kQuick) { 1186 size_t num_methods = 0; 1187 for (size_t i = 0; i != dex_files_.size(); ++i) { 1188 const DexFile* dex_file = dex_files_[i]; 1189 CHECK(dex_file != nullptr); 1190 num_methods += dex_file->NumMethodIds(); 1191 } 1192 if (num_methods <= compiler_options_->GetNumDexMethodsThreshold()) { 1193 compiler_options_->SetCompilerFilter(CompilerOptions::kSpeed); 1194 VLOG(compiler) << "Below method threshold, compiling anyways"; 1195 } 1196 } 1197 1198 return true; 1199 } 1200 1201 // Create and invoke the compiler driver. This will compile all the dex files. 1202 void Compile() { 1203 TimingLogger::ScopedTiming t("dex2oat Compile", timings_); 1204 compiler_phases_timings_.reset(new CumulativeLogger("compilation times")); 1205 1206 // Handle and ClassLoader creation needs to come after Runtime::Create 1207 jobject class_loader = nullptr; 1208 Thread* self = Thread::Current(); 1209 if (!boot_image_option_.empty()) { 1210 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 1211 OpenClassPathFiles(runtime_->GetClassPathString(), dex_files_, &class_path_files_); 1212 ScopedObjectAccess soa(self); 1213 std::vector<const DexFile*> class_path_files(dex_files_); 1214 for (auto& class_path_file : class_path_files_) { 1215 class_path_files.push_back(class_path_file.get()); 1216 } 1217 1218 for (size_t i = 0; i < class_path_files.size(); i++) { 1219 class_linker->RegisterDexFile(*class_path_files[i]); 1220 } 1221 soa.Env()->AllocObject(WellKnownClasses::dalvik_system_PathClassLoader); 1222 ScopedLocalRef<jobject> class_loader_local(soa.Env(), 1223 soa.Env()->AllocObject(WellKnownClasses::dalvik_system_PathClassLoader)); 1224 class_loader = soa.Env()->NewGlobalRef(class_loader_local.get()); 1225 Runtime::Current()->SetCompileTimeClassPath(class_loader, class_path_files); 1226 } 1227 1228 driver_.reset(new CompilerDriver(compiler_options_.get(), 1229 verification_results_.get(), 1230 &method_inliner_map_, 1231 compiler_kind_, 1232 instruction_set_, 1233 instruction_set_features_.get(), 1234 image_, 1235 image_classes_.release(), 1236 compiled_classes_.release(), 1237 thread_count_, 1238 dump_stats_, 1239 dump_passes_, 1240 compiler_phases_timings_.get(), 1241 swap_fd_, 1242 profile_file_)); 1243 1244 driver_->CompileAll(class_loader, dex_files_, timings_); 1245 } 1246 1247 // Notes on the interleaving of creating the image and oat file to 1248 // ensure the references between the two are correct. 1249 // 1250 // Currently we have a memory layout that looks something like this: 1251 // 1252 // +--------------+ 1253 // | image | 1254 // +--------------+ 1255 // | boot oat | 1256 // +--------------+ 1257 // | alloc spaces | 1258 // +--------------+ 1259 // 1260 // There are several constraints on the loading of the image and boot.oat. 1261 // 1262 // 1. The image is expected to be loaded at an absolute address and 1263 // contains Objects with absolute pointers within the image. 1264 // 1265 // 2. There are absolute pointers from Methods in the image to their 1266 // code in the oat. 1267 // 1268 // 3. There are absolute pointers from the code in the oat to Methods 1269 // in the image. 1270 // 1271 // 4. There are absolute pointers from code in the oat to other code 1272 // in the oat. 1273 // 1274 // To get this all correct, we go through several steps. 1275 // 1276 // 1. We prepare offsets for all data in the oat file and calculate 1277 // the oat data size and code size. During this stage, we also set 1278 // oat code offsets in methods for use by the image writer. 1279 // 1280 // 2. We prepare offsets for the objects in the image and calculate 1281 // the image size. 1282 // 1283 // 3. We create the oat file. Originally this was just our own proprietary 1284 // file but now it is contained within an ELF dynamic object (aka an .so 1285 // file). Since we know the image size and oat data size and code size we 1286 // can prepare the ELF headers and we then know the ELF memory segment 1287 // layout and we can now resolve all references. The compiler provides 1288 // LinkerPatch information in each CompiledMethod and we resolve these, 1289 // using the layout information and image object locations provided by 1290 // image writer, as we're writing the method code. 1291 // 1292 // 4. We create the image file. It needs to know where the oat file 1293 // will be loaded after itself. Originally when oat file was simply 1294 // memory mapped so we could predict where its contents were based 1295 // on the file size. Now that it is an ELF file, we need to inspect 1296 // the ELF file to understand the in memory segment layout including 1297 // where the oat header is located within. 1298 // TODO: We could just remember this information from step 3. 1299 // 1300 // 5. We fixup the ELF program headers so that dlopen will try to 1301 // load the .so at the desired location at runtime by offsetting the 1302 // Elf32_Phdr.p_vaddr values by the desired base address. 1303 // TODO: Do this in step 3. We already know the layout there. 1304 // 1305 // Steps 1.-3. are done by the CreateOatFile() above, steps 4.-5. 1306 // are done by the CreateImageFile() below. 1307 1308 1309 // Write out the generated code part. Calls the OatWriter and ElfBuilder. Also prepares the 1310 // ImageWriter, if necessary. 1311 // Note: Flushing (and closing) the file is the caller's responsibility, except for the failure 1312 // case (when the file will be explicitly erased). 1313 bool CreateOatFile() { 1314 CHECK(key_value_store_.get() != nullptr); 1315 1316 TimingLogger::ScopedTiming t("dex2oat Oat", timings_); 1317 1318 std::unique_ptr<OatWriter> oat_writer; 1319 { 1320 TimingLogger::ScopedTiming t2("dex2oat OatWriter", timings_); 1321 std::string image_file_location; 1322 uint32_t image_file_location_oat_checksum = 0; 1323 uintptr_t image_file_location_oat_data_begin = 0; 1324 int32_t image_patch_delta = 0; 1325 if (image_) { 1326 PrepareImageWriter(image_base_); 1327 } else { 1328 TimingLogger::ScopedTiming t3("Loading image checksum", timings_); 1329 gc::space::ImageSpace* image_space = Runtime::Current()->GetHeap()->GetImageSpace(); 1330 image_file_location_oat_checksum = image_space->GetImageHeader().GetOatChecksum(); 1331 image_file_location_oat_data_begin = 1332 reinterpret_cast<uintptr_t>(image_space->GetImageHeader().GetOatDataBegin()); 1333 image_file_location = image_space->GetImageFilename(); 1334 image_patch_delta = image_space->GetImageHeader().GetPatchDelta(); 1335 } 1336 1337 if (!image_file_location.empty()) { 1338 key_value_store_->Put(OatHeader::kImageLocationKey, image_file_location); 1339 } 1340 1341 oat_writer.reset(new OatWriter(dex_files_, image_file_location_oat_checksum, 1342 image_file_location_oat_data_begin, 1343 image_patch_delta, 1344 driver_.get(), 1345 image_writer_.get(), 1346 timings_, 1347 key_value_store_.get())); 1348 } 1349 1350 if (image_) { 1351 // The OatWriter constructor has already updated offsets in methods and we need to 1352 // prepare method offsets in the image address space for direct method patching. 1353 TimingLogger::ScopedTiming t2("dex2oat Prepare image address space", timings_); 1354 if (!image_writer_->PrepareImageAddressSpace()) { 1355 LOG(ERROR) << "Failed to prepare image address space."; 1356 return false; 1357 } 1358 } 1359 1360 { 1361 TimingLogger::ScopedTiming t2("dex2oat Write ELF", timings_); 1362 if (!driver_->WriteElf(android_root_, is_host_, dex_files_, oat_writer.get(), 1363 oat_file_.get())) { 1364 LOG(ERROR) << "Failed to write ELF file " << oat_file_->GetPath(); 1365 return false; 1366 } 1367 } 1368 1369 VLOG(compiler) << "Oat file written successfully (unstripped): " << oat_location_; 1370 return true; 1371 } 1372 1373 // If we are compiling an image, invoke the image creation routine. Else just skip. 1374 bool HandleImage() { 1375 if (image_) { 1376 TimingLogger::ScopedTiming t("dex2oat ImageWriter", timings_); 1377 if (!CreateImageFile()) { 1378 return false; 1379 } 1380 VLOG(compiler) << "Image written successfully: " << image_filename_; 1381 } 1382 return true; 1383 } 1384 1385 // Create a copy from unstripped to stripped. 1386 bool CopyUnstrippedToStripped() { 1387 // If we don't want to strip in place, copy from unstripped location to stripped location. 1388 // We need to strip after image creation because FixupElf needs to use .strtab. 1389 if (oat_unstripped_ != oat_stripped_) { 1390 // If the oat file is still open, flush it. 1391 if (oat_file_.get() != nullptr && oat_file_->IsOpened()) { 1392 if (!FlushCloseOatFile()) { 1393 return false; 1394 } 1395 } 1396 1397 TimingLogger::ScopedTiming t("dex2oat OatFile copy", timings_); 1398 std::unique_ptr<File> in(OS::OpenFileForReading(oat_unstripped_.c_str())); 1399 std::unique_ptr<File> out(OS::CreateEmptyFile(oat_stripped_.c_str())); 1400 size_t buffer_size = 8192; 1401 std::unique_ptr<uint8_t[]> buffer(new uint8_t[buffer_size]); 1402 while (true) { 1403 int bytes_read = TEMP_FAILURE_RETRY(read(in->Fd(), buffer.get(), buffer_size)); 1404 if (bytes_read <= 0) { 1405 break; 1406 } 1407 bool write_ok = out->WriteFully(buffer.get(), bytes_read); 1408 CHECK(write_ok); 1409 } 1410 if (out->FlushCloseOrErase() != 0) { 1411 PLOG(ERROR) << "Failed to flush and close copied oat file: " << oat_stripped_; 1412 return false; 1413 } 1414 VLOG(compiler) << "Oat file copied successfully (stripped): " << oat_stripped_; 1415 } 1416 return true; 1417 } 1418 1419 bool FlushOatFile() { 1420 if (oat_file_.get() != nullptr) { 1421 TimingLogger::ScopedTiming t2("dex2oat Flush ELF", timings_); 1422 if (oat_file_->Flush() != 0) { 1423 PLOG(ERROR) << "Failed to flush oat file: " << oat_location_ << " / " 1424 << oat_filename_; 1425 oat_file_->Erase(); 1426 return false; 1427 } 1428 } 1429 return true; 1430 } 1431 1432 bool FlushCloseOatFile() { 1433 if (oat_file_.get() != nullptr) { 1434 std::unique_ptr<File> tmp(oat_file_.release()); 1435 if (tmp->FlushCloseOrErase() != 0) { 1436 PLOG(ERROR) << "Failed to flush and close oat file: " << oat_location_ << " / " 1437 << oat_filename_; 1438 return false; 1439 } 1440 } 1441 return true; 1442 } 1443 1444 void DumpTiming() { 1445 if (dump_timing_ || (dump_slow_timing_ && timings_->GetTotalNs() > MsToNs(1000))) { 1446 LOG(INFO) << Dumpable<TimingLogger>(*timings_); 1447 } 1448 if (dump_passes_) { 1449 LOG(INFO) << Dumpable<CumulativeLogger>(*driver_->GetTimingsLogger()); 1450 } 1451 } 1452 1453 CompilerOptions* GetCompilerOptions() const { 1454 return compiler_options_.get(); 1455 } 1456 1457 bool IsImage() const { 1458 return image_; 1459 } 1460 1461 bool IsHost() const { 1462 return is_host_; 1463 } 1464 1465 private: 1466 static size_t OpenDexFiles(const std::vector<const char*>& dex_filenames, 1467 const std::vector<const char*>& dex_locations, 1468 std::vector<std::unique_ptr<const DexFile>>* dex_files) { 1469 DCHECK(dex_files != nullptr) << "OpenDexFiles out-param is NULL"; 1470 size_t failure_count = 0; 1471 for (size_t i = 0; i < dex_filenames.size(); i++) { 1472 const char* dex_filename = dex_filenames[i]; 1473 const char* dex_location = dex_locations[i]; 1474 ATRACE_BEGIN(StringPrintf("Opening dex file '%s'", dex_filenames[i]).c_str()); 1475 std::string error_msg; 1476 if (!OS::FileExists(dex_filename)) { 1477 LOG(WARNING) << "Skipping non-existent dex file '" << dex_filename << "'"; 1478 continue; 1479 } 1480 if (!DexFile::Open(dex_filename, dex_location, &error_msg, dex_files)) { 1481 LOG(WARNING) << "Failed to open .dex from file '" << dex_filename << "': " << error_msg; 1482 ++failure_count; 1483 } 1484 ATRACE_END(); 1485 } 1486 return failure_count; 1487 } 1488 1489 // Returns true if dex_files has a dex with the named location. 1490 static bool DexFilesContains(const std::vector<const DexFile*>& dex_files, 1491 const std::string& location) { 1492 for (size_t i = 0; i < dex_files.size(); ++i) { 1493 if (dex_files[i]->GetLocation() == location) { 1494 return true; 1495 } 1496 } 1497 return false; 1498 } 1499 1500 // Appends to opened_dex_files any elements of class_path that dex_files 1501 // doesn't already contain. This will open those dex files as necessary. 1502 static void OpenClassPathFiles(const std::string& class_path, 1503 std::vector<const DexFile*> dex_files, 1504 std::vector<std::unique_ptr<const DexFile>>* opened_dex_files) { 1505 DCHECK(opened_dex_files != nullptr) << "OpenClassPathFiles out-param is NULL"; 1506 std::vector<std::string> parsed; 1507 Split(class_path, ':', &parsed); 1508 // Take Locks::mutator_lock_ so that lock ordering on the ClassLinker::dex_lock_ is maintained. 1509 ScopedObjectAccess soa(Thread::Current()); 1510 for (size_t i = 0; i < parsed.size(); ++i) { 1511 if (DexFilesContains(dex_files, parsed[i])) { 1512 continue; 1513 } 1514 std::string error_msg; 1515 if (!DexFile::Open(parsed[i].c_str(), parsed[i].c_str(), &error_msg, opened_dex_files)) { 1516 LOG(WARNING) << "Failed to open dex file '" << parsed[i] << "': " << error_msg; 1517 } 1518 } 1519 } 1520 1521 // Create a runtime necessary for compilation. 1522 bool CreateRuntime(const RuntimeOptions& runtime_options) 1523 SHARED_TRYLOCK_FUNCTION(true, Locks::mutator_lock_) { 1524 if (!Runtime::Create(runtime_options, false)) { 1525 LOG(ERROR) << "Failed to create runtime"; 1526 return false; 1527 } 1528 Runtime* runtime = Runtime::Current(); 1529 runtime->SetInstructionSet(instruction_set_); 1530 for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) { 1531 Runtime::CalleeSaveType type = Runtime::CalleeSaveType(i); 1532 if (!runtime->HasCalleeSaveMethod(type)) { 1533 runtime->SetCalleeSaveMethod(runtime->CreateCalleeSaveMethod(), type); 1534 } 1535 } 1536 runtime->GetClassLinker()->FixupDexCaches(runtime->GetResolutionMethod()); 1537 runtime->GetClassLinker()->RunRootClinits(); 1538 runtime_ = runtime; 1539 return true; 1540 } 1541 1542 void PrepareImageWriter(uintptr_t image_base) { 1543 image_writer_.reset(new ImageWriter(*driver_, image_base, compiler_options_->GetCompilePic())); 1544 } 1545 1546 // Let the ImageWriter write the image file. If we do not compile PIC, also fix up the oat file. 1547 bool CreateImageFile() 1548 LOCKS_EXCLUDED(Locks::mutator_lock_) { 1549 CHECK(image_writer_ != nullptr); 1550 if (!image_writer_->Write(image_filename_, oat_unstripped_, oat_location_)) { 1551 LOG(ERROR) << "Failed to create image file " << image_filename_; 1552 return false; 1553 } 1554 uintptr_t oat_data_begin = image_writer_->GetOatDataBegin(); 1555 1556 // Destroy ImageWriter before doing FixupElf. 1557 image_writer_.reset(); 1558 1559 // Do not fix up the ELF file if we are --compile-pic 1560 if (!compiler_options_->GetCompilePic()) { 1561 std::unique_ptr<File> oat_file(OS::OpenFileReadWrite(oat_unstripped_.c_str())); 1562 if (oat_file.get() == nullptr) { 1563 PLOG(ERROR) << "Failed to open ELF file: " << oat_unstripped_; 1564 return false; 1565 } 1566 1567 if (!ElfWriter::Fixup(oat_file.get(), oat_data_begin)) { 1568 oat_file->Erase(); 1569 LOG(ERROR) << "Failed to fixup ELF file " << oat_file->GetPath(); 1570 return false; 1571 } 1572 1573 if (oat_file->FlushCloseOrErase()) { 1574 PLOG(ERROR) << "Failed to flush and close fixed ELF file " << oat_file->GetPath(); 1575 return false; 1576 } 1577 } 1578 1579 return true; 1580 } 1581 1582 // Reads the class names (java.lang.Object) and returns a set of descriptors (Ljava/lang/Object;) 1583 static std::set<std::string>* ReadImageClassesFromFile(const char* image_classes_filename) { 1584 std::unique_ptr<std::ifstream> image_classes_file(new std::ifstream(image_classes_filename, 1585 std::ifstream::in)); 1586 if (image_classes_file.get() == nullptr) { 1587 LOG(ERROR) << "Failed to open image classes file " << image_classes_filename; 1588 return nullptr; 1589 } 1590 std::unique_ptr<std::set<std::string>> result(ReadImageClasses(*image_classes_file)); 1591 image_classes_file->close(); 1592 return result.release(); 1593 } 1594 1595 static std::set<std::string>* ReadImageClasses(std::istream& image_classes_stream) { 1596 std::unique_ptr<std::set<std::string>> image_classes(new std::set<std::string>); 1597 while (image_classes_stream.good()) { 1598 std::string dot; 1599 std::getline(image_classes_stream, dot); 1600 if (StartsWith(dot, "#") || dot.empty()) { 1601 continue; 1602 } 1603 std::string descriptor(DotToDescriptor(dot.c_str())); 1604 image_classes->insert(descriptor); 1605 } 1606 return image_classes.release(); 1607 } 1608 1609 // Reads the class names (java.lang.Object) and returns a set of descriptors (Ljava/lang/Object;) 1610 static std::set<std::string>* ReadImageClassesFromZip(const char* zip_filename, 1611 const char* image_classes_filename, 1612 std::string* error_msg) { 1613 std::unique_ptr<ZipArchive> zip_archive(ZipArchive::Open(zip_filename, error_msg)); 1614 if (zip_archive.get() == nullptr) { 1615 return nullptr; 1616 } 1617 std::unique_ptr<ZipEntry> zip_entry(zip_archive->Find(image_classes_filename, error_msg)); 1618 if (zip_entry.get() == nullptr) { 1619 *error_msg = StringPrintf("Failed to find '%s' within '%s': %s", image_classes_filename, 1620 zip_filename, error_msg->c_str()); 1621 return nullptr; 1622 } 1623 std::unique_ptr<MemMap> image_classes_file(zip_entry->ExtractToMemMap(zip_filename, 1624 image_classes_filename, 1625 error_msg)); 1626 if (image_classes_file.get() == nullptr) { 1627 *error_msg = StringPrintf("Failed to extract '%s' from '%s': %s", image_classes_filename, 1628 zip_filename, error_msg->c_str()); 1629 return nullptr; 1630 } 1631 const std::string image_classes_string(reinterpret_cast<char*>(image_classes_file->Begin()), 1632 image_classes_file->Size()); 1633 std::istringstream image_classes_stream(image_classes_string); 1634 return ReadImageClasses(image_classes_stream); 1635 } 1636 1637 void LogCompletionTime() { 1638 LOG(INFO) << "dex2oat took " << PrettyDuration(NanoTime() - start_ns_) 1639 << " (threads: " << thread_count_ << ") " 1640 << driver_->GetMemoryUsageString(); 1641 } 1642 1643 std::unique_ptr<CompilerOptions> compiler_options_; 1644 Compiler::Kind compiler_kind_; 1645 1646 InstructionSet instruction_set_; 1647 std::unique_ptr<const InstructionSetFeatures> instruction_set_features_; 1648 1649 std::unique_ptr<SafeMap<std::string, std::string> > key_value_store_; 1650 1651 std::unique_ptr<VerificationResults> verification_results_; 1652 DexFileToMethodInlinerMap method_inliner_map_; 1653 std::unique_ptr<QuickCompilerCallbacks> callbacks_; 1654 1655 // Ownership for the class path files. 1656 std::vector<std::unique_ptr<const DexFile>> class_path_files_; 1657 1658 // Not a unique_ptr as we want to just exit on non-debug builds, not bringing the runtime down 1659 // in an orderly fashion. The destructor takes care of deleting this. 1660 Runtime* runtime_; 1661 1662 size_t thread_count_; 1663 uint64_t start_ns_; 1664 std::unique_ptr<WatchDog> watchdog_; 1665 std::unique_ptr<File> oat_file_; 1666 std::string oat_stripped_; 1667 std::string oat_unstripped_; 1668 std::string oat_location_; 1669 std::string oat_filename_; 1670 int oat_fd_; 1671 std::vector<const char*> dex_filenames_; 1672 std::vector<const char*> dex_locations_; 1673 int zip_fd_; 1674 std::string zip_location_; 1675 std::string boot_image_option_; 1676 std::vector<const char*> runtime_args_; 1677 std::string image_filename_; 1678 uintptr_t image_base_; 1679 const char* image_classes_zip_filename_; 1680 const char* image_classes_filename_; 1681 const char* compiled_classes_zip_filename_; 1682 const char* compiled_classes_filename_; 1683 std::unique_ptr<std::set<std::string>> image_classes_; 1684 std::unique_ptr<std::set<std::string>> compiled_classes_; 1685 bool image_; 1686 std::unique_ptr<ImageWriter> image_writer_; 1687 bool is_host_; 1688 std::string android_root_; 1689 std::vector<const DexFile*> dex_files_; 1690 std::vector<std::unique_ptr<const DexFile>> opened_dex_files_; 1691 std::unique_ptr<CompilerDriver> driver_; 1692 std::vector<std::string> verbose_methods_; 1693 bool dump_stats_; 1694 bool dump_passes_; 1695 bool dump_timing_; 1696 bool dump_slow_timing_; 1697 std::string swap_file_name_; 1698 int swap_fd_; 1699 std::string profile_file_; // Profile file to use 1700 TimingLogger* timings_; 1701 std::unique_ptr<CumulativeLogger> compiler_phases_timings_; 1702 std::unique_ptr<std::ostream> init_failure_output_; 1703 1704 DISALLOW_IMPLICIT_CONSTRUCTORS(Dex2Oat); 1705}; 1706 1707const unsigned int WatchDog::kWatchDogTimeoutSeconds; 1708 1709static void b13564922() { 1710#if defined(__linux__) && defined(__arm__) 1711 int major, minor; 1712 struct utsname uts; 1713 if (uname(&uts) != -1 && 1714 sscanf(uts.release, "%d.%d", &major, &minor) == 2 && 1715 ((major < 3) || ((major == 3) && (minor < 4)))) { 1716 // Kernels before 3.4 don't handle the ASLR well and we can run out of address 1717 // space (http://b/13564922). Work around the issue by inhibiting further mmap() randomization. 1718 int old_personality = personality(0xffffffff); 1719 if ((old_personality & ADDR_NO_RANDOMIZE) == 0) { 1720 int new_personality = personality(old_personality | ADDR_NO_RANDOMIZE); 1721 if (new_personality == -1) { 1722 LOG(WARNING) << "personality(. | ADDR_NO_RANDOMIZE) failed."; 1723 } 1724 } 1725 } 1726#endif 1727} 1728 1729static int CompileImage(Dex2Oat& dex2oat) { 1730 dex2oat.Compile(); 1731 1732 // Create the boot.oat. 1733 if (!dex2oat.CreateOatFile()) { 1734 dex2oat.EraseOatFile(); 1735 return EXIT_FAILURE; 1736 } 1737 1738 // Flush and close the boot.oat. We always expect the output file by name, and it will be 1739 // re-opened from the unstripped name. 1740 if (!dex2oat.FlushCloseOatFile()) { 1741 return EXIT_FAILURE; 1742 } 1743 1744 // Creates the boot.art and patches the boot.oat. 1745 if (!dex2oat.HandleImage()) { 1746 return EXIT_FAILURE; 1747 } 1748 1749 // When given --host, finish early without stripping. 1750 if (dex2oat.IsHost()) { 1751 dex2oat.DumpTiming(); 1752 return EXIT_SUCCESS; 1753 } 1754 1755 // Copy unstripped to stripped location, if necessary. 1756 if (!dex2oat.CopyUnstrippedToStripped()) { 1757 return EXIT_FAILURE; 1758 } 1759 1760 // FlushClose again, as stripping might have re-opened the oat file. 1761 if (!dex2oat.FlushCloseOatFile()) { 1762 return EXIT_FAILURE; 1763 } 1764 1765 dex2oat.DumpTiming(); 1766 return EXIT_SUCCESS; 1767} 1768 1769static int CompileApp(Dex2Oat& dex2oat) { 1770 dex2oat.Compile(); 1771 1772 // Create the app oat. 1773 if (!dex2oat.CreateOatFile()) { 1774 dex2oat.EraseOatFile(); 1775 return EXIT_FAILURE; 1776 } 1777 1778 // Do not close the oat file here. We might haven gotten the output file by file descriptor, 1779 // which we would lose. 1780 if (!dex2oat.FlushOatFile()) { 1781 return EXIT_FAILURE; 1782 } 1783 1784 // When given --host, finish early without stripping. 1785 if (dex2oat.IsHost()) { 1786 if (!dex2oat.FlushCloseOatFile()) { 1787 return EXIT_FAILURE; 1788 } 1789 1790 dex2oat.DumpTiming(); 1791 return EXIT_SUCCESS; 1792 } 1793 1794 // Copy unstripped to stripped location, if necessary. This will implicitly flush & close the 1795 // unstripped version. If this is given, we expect to be able to open writable files by name. 1796 if (!dex2oat.CopyUnstrippedToStripped()) { 1797 return EXIT_FAILURE; 1798 } 1799 1800 // Flush and close the file. 1801 if (!dex2oat.FlushCloseOatFile()) { 1802 return EXIT_FAILURE; 1803 } 1804 1805 dex2oat.DumpTiming(); 1806 return EXIT_SUCCESS; 1807} 1808 1809static int dex2oat(int argc, char** argv) { 1810 b13564922(); 1811 1812 TimingLogger timings("compiler", false, false); 1813 1814 Dex2Oat dex2oat(&timings); 1815 1816 // Parse arguments. Argument mistakes will lead to exit(EXIT_FAILURE) in UsageError. 1817 dex2oat.ParseArgs(argc, argv); 1818 1819 // Check early that the result of compilation can be written 1820 if (!dex2oat.OpenFile()) { 1821 return EXIT_FAILURE; 1822 } 1823 1824 LOG(INFO) << CommandLine(); 1825 1826 if (!dex2oat.Setup()) { 1827 dex2oat.EraseOatFile(); 1828 return EXIT_FAILURE; 1829 } 1830 1831 if (dex2oat.IsImage()) { 1832 return CompileImage(dex2oat); 1833 } else { 1834 return CompileApp(dex2oat); 1835 } 1836} 1837} // namespace art 1838 1839int main(int argc, char** argv) { 1840 int result = art::dex2oat(argc, argv); 1841 // Everything was done, do an explicit exit here to avoid running Runtime destructors that take 1842 // time (bug 10645725) unless we're a debug build or running on valgrind. Note: The Dex2Oat class 1843 // should not destruct the runtime in this case. 1844 if (!art::kIsDebugBuild && (RUNNING_ON_VALGRIND == 0)) { 1845 exit(result); 1846 } 1847 return result; 1848} 1849