dex2oat.cc revision ab972ef472001fa113d54486d7592979e33480b3
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 "base/dumpable.h" 38#include "base/stl_util.h" 39#include "base/stringpiece.h" 40#include "base/timing_logger.h" 41#include "base/unix_file/fd_file.h" 42#include "class_linker.h" 43#include "compiler.h" 44#include "compiler_callbacks.h" 45#include "dex_file-inl.h" 46#include "dex/pass_driver_me_opts.h" 47#include "dex/verification_results.h" 48#include "dex/quick_compiler_callbacks.h" 49#include "dex/quick/dex_file_to_method_inliner_map.h" 50#include "driver/compiler_driver.h" 51#include "driver/compiler_options.h" 52#include "elf_file.h" 53#include "elf_writer.h" 54#include "gc/space/image_space.h" 55#include "gc/space/space-inl.h" 56#include "image_writer.h" 57#include "leb128.h" 58#include "mirror/art_method-inl.h" 59#include "mirror/class-inl.h" 60#include "mirror/class_loader.h" 61#include "mirror/object-inl.h" 62#include "mirror/object_array-inl.h" 63#include "oat_writer.h" 64#include "os.h" 65#include "runtime.h" 66#include "ScopedLocalRef.h" 67#include "scoped_thread_state_change.h" 68#include "utils.h" 69#include "vector_output_stream.h" 70#include "well_known_classes.h" 71#include "zip_archive.h" 72 73namespace art { 74 75static int original_argc; 76static char** original_argv; 77 78static std::string CommandLine() { 79 std::vector<std::string> command; 80 for (int i = 0; i < original_argc; ++i) { 81 command.push_back(original_argv[i]); 82 } 83 return Join(command, ' '); 84} 85 86static void UsageErrorV(const char* fmt, va_list ap) { 87 std::string error; 88 StringAppendV(&error, fmt, ap); 89 LOG(ERROR) << error; 90} 91 92static void UsageError(const char* fmt, ...) { 93 va_list ap; 94 va_start(ap, fmt); 95 UsageErrorV(fmt, ap); 96 va_end(ap); 97} 98 99[[noreturn]] static void Usage(const char* fmt, ...) { 100 va_list ap; 101 va_start(ap, fmt); 102 UsageErrorV(fmt, ap); 103 va_end(ap); 104 105 UsageError("Command: %s", CommandLine().c_str()); 106 107 UsageError("Usage: dex2oat [options]..."); 108 UsageError(""); 109 UsageError(" --dex-file=<dex-file>: specifies a .dex file to compile."); 110 UsageError(" Example: --dex-file=/system/framework/core.jar"); 111 UsageError(""); 112 UsageError(" --zip-fd=<file-descriptor>: specifies a file descriptor of a zip file"); 113 UsageError(" containing a classes.dex file to compile."); 114 UsageError(" Example: --zip-fd=5"); 115 UsageError(""); 116 UsageError(" --zip-location=<zip-location>: specifies a symbolic name for the file"); 117 UsageError(" corresponding to the file descriptor specified by --zip-fd."); 118 UsageError(" Example: --zip-location=/system/app/Calculator.apk"); 119 UsageError(""); 120 UsageError(" --oat-file=<file.oat>: specifies the oat output destination via a filename."); 121 UsageError(" Example: --oat-file=/system/framework/boot.oat"); 122 UsageError(""); 123 UsageError(" --oat-fd=<number>: specifies the oat output destination via a file descriptor."); 124 UsageError(" Example: --oat-fd=6"); 125 UsageError(""); 126 UsageError(" --oat-location=<oat-name>: specifies a symbolic name for the file corresponding"); 127 UsageError(" to the file descriptor specified by --oat-fd."); 128 UsageError(" Example: --oat-location=/data/dalvik-cache/system@app@Calculator.apk.oat"); 129 UsageError(""); 130 UsageError(" --oat-symbols=<file.oat>: specifies the oat output destination with full symbols."); 131 UsageError(" Example: --oat-symbols=/symbols/system/framework/boot.oat"); 132 UsageError(""); 133 UsageError(" --bitcode=<file.bc>: specifies the optional bitcode filename."); 134 UsageError(" Example: --bitcode=/system/framework/boot.bc"); 135 UsageError(""); 136 UsageError(" --image=<file.art>: specifies the output image filename."); 137 UsageError(" Example: --image=/system/framework/boot.art"); 138 UsageError(""); 139 UsageError(" --image-classes=<classname-file>: specifies classes to include in an image."); 140 UsageError(" Example: --image=frameworks/base/preloaded-classes"); 141 UsageError(""); 142 UsageError(" --base=<hex-address>: specifies the base address when creating a boot image."); 143 UsageError(" Example: --base=0x50000000"); 144 UsageError(""); 145 UsageError(" --boot-image=<file.art>: provide the image file for the boot class path."); 146 UsageError(" Example: --boot-image=/system/framework/boot.art"); 147 UsageError(" Default: $ANDROID_ROOT/system/framework/boot.art"); 148 UsageError(""); 149 UsageError(" --android-root=<path>: used to locate libraries for portable linking."); 150 UsageError(" Example: --android-root=out/host/linux-x86"); 151 UsageError(" Default: $ANDROID_ROOT"); 152 UsageError(""); 153 UsageError(" --instruction-set=(arm|arm64|mips|x86|x86_64): compile for a particular"); 154 UsageError(" instruction set."); 155 UsageError(" Example: --instruction-set=x86"); 156 UsageError(" Default: arm"); 157 UsageError(""); 158 UsageError(" --instruction-set-features=...,: Specify instruction set features"); 159 UsageError(" Example: --instruction-set-features=div"); 160 UsageError(" Default: default"); 161 UsageError(""); 162 UsageError(" --compile-pic: Force indirect use of code, methods, and classes"); 163 UsageError(" Default: disabled"); 164 UsageError(""); 165 UsageError(" --compiler-backend=(Quick|Optimizing|Portable): select compiler backend"); 166 UsageError(" set."); 167 UsageError(" Example: --compiler-backend=Portable"); 168 if (kUsePortableCompiler) { 169 UsageError(" Default: Portable"); 170 } else if (kUseOptimizingCompiler) { 171 UsageError(" Default: Optimizing"); 172 } else { 173 UsageError(" Default: Quick"); 174 } 175 UsageError(""); 176 UsageError(" --compiler-filter=" 177 "(verify-none" 178 "|interpret-only" 179 "|space" 180 "|balanced" 181 "|speed" 182 "|everything" 183 "|time):"); 184 UsageError(" select compiler filter."); 185 UsageError(" Example: --compiler-filter=everything"); 186#if ART_SMALL_MODE 187 UsageError(" Default: interpret-only"); 188#else 189 UsageError(" Default: speed"); 190#endif 191 UsageError(""); 192 UsageError(" --huge-method-max=<method-instruction-count>: the threshold size for a huge"); 193 UsageError(" method for compiler filter tuning."); 194 UsageError(" Example: --huge-method-max=%d", CompilerOptions::kDefaultHugeMethodThreshold); 195 UsageError(" Default: %d", CompilerOptions::kDefaultHugeMethodThreshold); 196 UsageError(""); 197 UsageError(" --huge-method-max=<method-instruction-count>: threshold size for a huge"); 198 UsageError(" method for compiler filter tuning."); 199 UsageError(" Example: --huge-method-max=%d", CompilerOptions::kDefaultHugeMethodThreshold); 200 UsageError(" Default: %d", CompilerOptions::kDefaultHugeMethodThreshold); 201 UsageError(""); 202 UsageError(" --large-method-max=<method-instruction-count>: threshold size for a large"); 203 UsageError(" method for compiler filter tuning."); 204 UsageError(" Example: --large-method-max=%d", CompilerOptions::kDefaultLargeMethodThreshold); 205 UsageError(" Default: %d", CompilerOptions::kDefaultLargeMethodThreshold); 206 UsageError(""); 207 UsageError(" --small-method-max=<method-instruction-count>: threshold size for a small"); 208 UsageError(" method for compiler filter tuning."); 209 UsageError(" Example: --small-method-max=%d", CompilerOptions::kDefaultSmallMethodThreshold); 210 UsageError(" Default: %d", CompilerOptions::kDefaultSmallMethodThreshold); 211 UsageError(""); 212 UsageError(" --tiny-method-max=<method-instruction-count>: threshold size for a tiny"); 213 UsageError(" method for compiler filter tuning."); 214 UsageError(" Example: --tiny-method-max=%d", CompilerOptions::kDefaultTinyMethodThreshold); 215 UsageError(" Default: %d", CompilerOptions::kDefaultTinyMethodThreshold); 216 UsageError(""); 217 UsageError(" --num-dex-methods=<method-count>: threshold size for a small dex file for"); 218 UsageError(" compiler filter tuning. If the input has fewer than this many methods"); 219 UsageError(" and the filter is not interpret-only or verify-none, overrides the"); 220 UsageError(" filter to use speed"); 221 UsageError(" Example: --num-dex-method=%d", CompilerOptions::kDefaultNumDexMethodsThreshold); 222 UsageError(" Default: %d", CompilerOptions::kDefaultNumDexMethodsThreshold); 223 UsageError(""); 224 UsageError(" --host: used with Portable backend to link against host runtime libraries"); 225 UsageError(""); 226 UsageError(" --dump-timing: display a breakdown of where time was spent"); 227 UsageError(""); 228 UsageError(" --include-patch-information: Include patching information so the generated code"); 229 UsageError(" can have its base address moved without full recompilation."); 230 UsageError(""); 231 UsageError(" --no-include-patch-information: Do not include patching information."); 232 UsageError(""); 233 UsageError(" --include-debug-symbols: Include ELF symbols in this oat file"); 234 UsageError(""); 235 UsageError(" --no-include-debug-symbols: Do not include ELF symbols in this oat file"); 236 UsageError(""); 237 UsageError(" --runtime-arg <argument>: used to specify various arguments for the runtime,"); 238 UsageError(" such as initial heap size, maximum heap size, and verbose output."); 239 UsageError(" Use a separate --runtime-arg switch for each argument."); 240 UsageError(" Example: --runtime-arg -Xms256m"); 241 UsageError(""); 242 UsageError(" --profile-file=<filename>: specify profiler output file to use for compilation."); 243 UsageError(""); 244 UsageError(" --print-pass-names: print a list of pass names"); 245 UsageError(""); 246 UsageError(" --disable-passes=<pass-names>: disable one or more passes separated by comma."); 247 UsageError(" Example: --disable-passes=UseCount,BBOptimizations"); 248 UsageError(""); 249 UsageError(" --print-pass-options: print a list of passes that have configurable options along " 250 "with the setting."); 251 UsageError(" Will print default if no overridden setting exists."); 252 UsageError(""); 253 UsageError(" --pass-options=Pass1Name:Pass1OptionName:Pass1Option#," 254 "Pass2Name:Pass2OptionName:Pass2Option#"); 255 UsageError(" Used to specify a pass specific option. The setting itself must be integer."); 256 UsageError(" Separator used between options is a comma."); 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 static void Warn(const std::string& message) { 330 Message('W', message); 331 } 332 333 [[noreturn]] static void Fatal(const std::string& message) { 334 Message('F', message); 335 exit(1); 336 } 337 338 void Wait() { 339 bool warning = true; 340 CHECK_GT(kWatchDogTimeoutSeconds, kWatchDogWarningSeconds); 341 // TODO: tune the multiplier for GC verification, the following is just to make the timeout 342 // large. 343 int64_t multiplier = kVerifyObjectSupport > kVerifyObjectModeFast ? 100 : 1; 344 timespec warning_ts; 345 InitTimeSpec(true, CLOCK_REALTIME, multiplier * kWatchDogWarningSeconds * 1000, 0, &warning_ts); 346 timespec timeout_ts; 347 InitTimeSpec(true, CLOCK_REALTIME, multiplier * kWatchDogTimeoutSeconds * 1000, 0, &timeout_ts); 348 const char* reason = "dex2oat watch dog thread waiting"; 349 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_lock, (&mutex_), reason); 350 while (!shutting_down_) { 351 int rc = TEMP_FAILURE_RETRY(pthread_cond_timedwait(&cond_, &mutex_, 352 warning ? &warning_ts 353 : &timeout_ts)); 354 if (rc == ETIMEDOUT) { 355 std::string message(StringPrintf("dex2oat did not finish after %d seconds", 356 warning ? kWatchDogWarningSeconds 357 : kWatchDogTimeoutSeconds)); 358 if (warning) { 359 Warn(message.c_str()); 360 warning = false; 361 } else { 362 Fatal(message.c_str()); 363 } 364 } else if (rc != 0) { 365 std::string message(StringPrintf("pthread_cond_timedwait failed: %s", 366 strerror(errno))); 367 Fatal(message.c_str()); 368 } 369 } 370 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_unlock, (&mutex_), reason); 371 } 372 373 // When setting timeouts, keep in mind that the build server may not be as fast as your desktop. 374 // Debug builds are slower so they have larger timeouts. 375 static const unsigned int kSlowdownFactor = kIsDebugBuild ? 5U : 1U; 376 377 static const unsigned int kWatchDogWarningSeconds = kUsePortableCompiler ? 378 kSlowdownFactor * 2 * 60 : // 2 minutes scaled by kSlowdownFactor (portable). 379 kSlowdownFactor * 1 * 60; // 1 minute scaled by kSlowdownFactor (not-portable). 380 static const unsigned int kWatchDogTimeoutSeconds = kUsePortableCompiler ? 381 kSlowdownFactor * 30 * 60 : // 30 minutes scaled by kSlowdownFactor (portable). 382 kSlowdownFactor * 6 * 60; // 6 minutes scaled by kSlowdownFactor (not-portable). 383 384 bool is_watch_dog_enabled_; 385 bool shutting_down_; 386 // TODO: Switch to Mutex when we can guarantee it won't prevent shutdown in error cases. 387 pthread_mutex_t mutex_; 388 pthread_cond_t cond_; 389 pthread_attr_t attr_; 390 pthread_t pthread_; 391}; 392 393static void ParseStringAfterChar(const std::string& s, char c, std::string* parsed_value) { 394 std::string::size_type colon = s.find(c); 395 if (colon == std::string::npos) { 396 Usage("Missing char %c in option %s\n", c, s.c_str()); 397 } 398 // Add one to remove the char we were trimming until. 399 *parsed_value = s.substr(colon + 1); 400} 401 402static void ParseDouble(const std::string& option, char after_char, double min, double max, 403 double* parsed_value) { 404 std::string substring; 405 ParseStringAfterChar(option, after_char, &substring); 406 bool sane_val = true; 407 double value; 408 if (false) { 409 // TODO: this doesn't seem to work on the emulator. b/15114595 410 std::stringstream iss(substring); 411 iss >> value; 412 // Ensure that we have a value, there was no cruft after it and it satisfies a sensible range. 413 sane_val = iss.eof() && (value >= min) && (value <= max); 414 } else { 415 char* end = nullptr; 416 value = strtod(substring.c_str(), &end); 417 sane_val = *end == '\0' && value >= min && value <= max; 418 } 419 if (!sane_val) { 420 Usage("Invalid double value %s for option %s\n", substring.c_str(), option.c_str()); 421 } 422 *parsed_value = value; 423} 424 425class Dex2Oat FINAL { 426 public: 427 explicit Dex2Oat(TimingLogger* timings) : 428 compiler_kind_(kUsePortableCompiler 429 ? Compiler::kPortable 430 : (kUseOptimizingCompiler ? Compiler::kOptimizing : Compiler::kQuick)), 431 instruction_set_(kRuntimeISA), 432 // Take the default set of instruction features from the build. 433 method_inliner_map_(), 434 runtime_(nullptr), 435 thread_count_(sysconf(_SC_NPROCESSORS_CONF)), 436 start_ns_(NanoTime()), 437 oat_fd_(-1), 438 zip_fd_(-1), 439 image_base_(0U), 440 image_classes_zip_filename_(nullptr), 441 image_classes_filename_(nullptr), 442 compiled_classes_zip_filename_(nullptr), 443 compiled_classes_filename_(nullptr), 444 image_(false), 445 is_host_(false), 446 dump_stats_(false), 447 dump_passes_(false), 448 dump_timing_(false), 449 dump_slow_timing_(kIsDebugBuild), 450 timings_(timings) {} 451 452 ~Dex2Oat() { 453 LogCompletionTime(); // Needs to be before since it accesses the runtime. 454 if (kIsDebugBuild || (RUNNING_ON_VALGRIND != 0)) { 455 delete runtime_; // See field declaration for why this is manual. 456 } 457 } 458 459 // Parse the arguments from the command line. In case of an unrecognized option or impossible 460 // values/combinations, a usage error will be displayed and exit() is called. Thus, if the method 461 // returns, arguments have been successfully parsed. 462 void ParseArgs(int argc, char** argv) { 463 original_argc = argc; 464 original_argv = argv; 465 466 InitLogging(argv); 467 468 // Skip over argv[0]. 469 argv++; 470 argc--; 471 472 if (argc == 0) { 473 Usage("No arguments specified"); 474 } 475 476 std::string oat_symbols; 477 std::string boot_image_filename; 478 const char* compiler_filter_string = nullptr; 479 bool compile_pic = false; 480 int huge_method_threshold = CompilerOptions::kDefaultHugeMethodThreshold; 481 int large_method_threshold = CompilerOptions::kDefaultLargeMethodThreshold; 482 int small_method_threshold = CompilerOptions::kDefaultSmallMethodThreshold; 483 int tiny_method_threshold = CompilerOptions::kDefaultTinyMethodThreshold; 484 int num_dex_methods_threshold = CompilerOptions::kDefaultNumDexMethodsThreshold; 485 486 // Profile file to use 487 double top_k_profile_threshold = CompilerOptions::kDefaultTopKProfileThreshold; 488 489 bool print_pass_options = false; 490 bool include_patch_information = CompilerOptions::kDefaultIncludePatchInformation; 491 bool include_debug_symbols = kIsDebugBuild; 492 bool watch_dog_enabled = true; 493 bool generate_gdb_information = kIsDebugBuild; 494 495 std::string error_msg; 496 497 for (int i = 0; i < argc; i++) { 498 const StringPiece option(argv[i]); 499 const bool log_options = false; 500 if (log_options) { 501 LOG(INFO) << "dex2oat: option[" << i << "]=" << argv[i]; 502 } 503 if (option.starts_with("--dex-file=")) { 504 dex_filenames_.push_back(option.substr(strlen("--dex-file=")).data()); 505 } else if (option.starts_with("--dex-location=")) { 506 dex_locations_.push_back(option.substr(strlen("--dex-location=")).data()); 507 } else if (option.starts_with("--zip-fd=")) { 508 const char* zip_fd_str = option.substr(strlen("--zip-fd=")).data(); 509 if (!ParseInt(zip_fd_str, &zip_fd_)) { 510 Usage("Failed to parse --zip-fd argument '%s' as an integer", zip_fd_str); 511 } 512 if (zip_fd_ < 0) { 513 Usage("--zip-fd passed a negative value %d", zip_fd_); 514 } 515 } else if (option.starts_with("--zip-location=")) { 516 zip_location_ = option.substr(strlen("--zip-location=")).data(); 517 } else if (option.starts_with("--oat-file=")) { 518 oat_filename_ = option.substr(strlen("--oat-file=")).data(); 519 } else if (option.starts_with("--oat-symbols=")) { 520 oat_symbols = option.substr(strlen("--oat-symbols=")).data(); 521 } else if (option.starts_with("--oat-fd=")) { 522 const char* oat_fd_str = option.substr(strlen("--oat-fd=")).data(); 523 if (!ParseInt(oat_fd_str, &oat_fd_)) { 524 Usage("Failed to parse --oat-fd argument '%s' as an integer", oat_fd_str); 525 } 526 if (oat_fd_ < 0) { 527 Usage("--oat-fd passed a negative value %d", oat_fd_); 528 } 529 } else if (option == "--watch-dog") { 530 watch_dog_enabled = true; 531 } else if (option == "--no-watch-dog") { 532 watch_dog_enabled = false; 533 } else if (option == "--gen-gdb-info") { 534 generate_gdb_information = true; 535 // Debug symbols are needed for gdb information. 536 include_debug_symbols = true; 537 } else if (option == "--no-gen-gdb-info") { 538 generate_gdb_information = false; 539 } else if (option.starts_with("-j")) { 540 const char* thread_count_str = option.substr(strlen("-j")).data(); 541 if (!ParseUint(thread_count_str, &thread_count_)) { 542 Usage("Failed to parse -j argument '%s' as an integer", thread_count_str); 543 } 544 } else if (option.starts_with("--oat-location=")) { 545 oat_location_ = option.substr(strlen("--oat-location=")).data(); 546 } else if (option.starts_with("--bitcode=")) { 547 bitcode_filename_ = option.substr(strlen("--bitcode=")).data(); 548 } else if (option.starts_with("--image=")) { 549 image_filename_ = option.substr(strlen("--image=")).data(); 550 } else if (option.starts_with("--image-classes=")) { 551 image_classes_filename_ = option.substr(strlen("--image-classes=")).data(); 552 } else if (option.starts_with("--image-classes-zip=")) { 553 image_classes_zip_filename_ = option.substr(strlen("--image-classes-zip=")).data(); 554 } else if (option.starts_with("--compiled-classes=")) { 555 compiled_classes_filename_ = option.substr(strlen("--compiled-classes=")).data(); 556 } else if (option.starts_with("--compiled-classes-zip=")) { 557 compiled_classes_zip_filename_ = option.substr(strlen("--compiled-classes-zip=")).data(); 558 } else if (option.starts_with("--base=")) { 559 const char* image_base_str = option.substr(strlen("--base=")).data(); 560 char* end; 561 image_base_ = strtoul(image_base_str, &end, 16); 562 if (end == image_base_str || *end != '\0') { 563 Usage("Failed to parse hexadecimal value for option %s", option.data()); 564 } 565 } else if (option.starts_with("--boot-image=")) { 566 boot_image_filename = option.substr(strlen("--boot-image=")).data(); 567 } else if (option.starts_with("--android-root=")) { 568 android_root_ = option.substr(strlen("--android-root=")).data(); 569 } else if (option.starts_with("--instruction-set=")) { 570 StringPiece instruction_set_str = option.substr(strlen("--instruction-set=")).data(); 571 // StringPiece is not necessarily zero-terminated, so need to make a copy and ensure it. 572 std::unique_ptr<char> buf(new char[instruction_set_str.length() + 1]); 573 strncpy(buf.get(), instruction_set_str.data(), instruction_set_str.length()); 574 buf.get()[instruction_set_str.length()] = 0; 575 instruction_set_ = GetInstructionSetFromString(buf.get()); 576 // arm actually means thumb2. 577 if (instruction_set_ == InstructionSet::kArm) { 578 instruction_set_ = InstructionSet::kThumb2; 579 } 580 } else if (option.starts_with("--instruction-set-variant=")) { 581 StringPiece str = option.substr(strlen("--instruction-set-variant=")).data(); 582 instruction_set_features_.reset( 583 InstructionSetFeatures::FromVariant(instruction_set_, str.as_string(), &error_msg)); 584 if (instruction_set_features_.get() == nullptr) { 585 Usage("%s", error_msg.c_str()); 586 } 587 } else if (option.starts_with("--instruction-set-features=")) { 588 StringPiece str = option.substr(strlen("--instruction-set-features=")).data(); 589 if (instruction_set_features_.get() == nullptr) { 590 instruction_set_features_.reset( 591 InstructionSetFeatures::FromVariant(instruction_set_, "default", &error_msg)); 592 if (instruction_set_features_.get() == nullptr) { 593 Usage("Problem initializing default instruction set features variant: %s", 594 error_msg.c_str()); 595 } 596 } 597 instruction_set_features_.reset( 598 instruction_set_features_->AddFeaturesFromString(str.as_string(), &error_msg)); 599 if (instruction_set_features_.get() == nullptr) { 600 Usage("Error parsing '%s': %s", option.data(), error_msg.c_str()); 601 } 602 } else if (option.starts_with("--compiler-backend=")) { 603 StringPiece backend_str = option.substr(strlen("--compiler-backend=")).data(); 604 if (backend_str == "Quick") { 605 compiler_kind_ = Compiler::kQuick; 606 } else if (backend_str == "Optimizing") { 607 compiler_kind_ = Compiler::kOptimizing; 608 } else if (backend_str == "Portable") { 609 compiler_kind_ = Compiler::kPortable; 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 conditional 709 // 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 { 723 Usage("Unknown argument %s", option.data()); 724 } 725 } 726 727 if (compiler_kind_ == Compiler::kOptimizing) { 728 // Optimizing only supports PIC mode. 729 compile_pic = true; 730 } 731 732 if (oat_filename_.empty() && oat_fd_ == -1) { 733 Usage("Output must be supplied with either --oat-file or --oat-fd"); 734 } 735 736 if (!oat_filename_.empty() && oat_fd_ != -1) { 737 Usage("--oat-file should not be used with --oat-fd"); 738 } 739 740 if (!oat_symbols.empty() && oat_fd_ != -1) { 741 Usage("--oat-symbols should not be used with --oat-fd"); 742 } 743 744 if (!oat_symbols.empty() && is_host_) { 745 Usage("--oat-symbols should not be used with --host"); 746 } 747 748 if (oat_fd_ != -1 && !image_filename_.empty()) { 749 Usage("--oat-fd should not be used with --image"); 750 } 751 752 if (android_root_.empty()) { 753 const char* android_root_env_var = getenv("ANDROID_ROOT"); 754 if (android_root_env_var == nullptr) { 755 Usage("--android-root unspecified and ANDROID_ROOT not set"); 756 } 757 android_root_ += android_root_env_var; 758 } 759 760 image_ = (!image_filename_.empty()); 761 if (!image_ && boot_image_filename.empty()) { 762 boot_image_filename += android_root_; 763 boot_image_filename += "/framework/boot.art"; 764 } 765 if (!boot_image_filename.empty()) { 766 boot_image_option_ += "-Ximage:"; 767 boot_image_option_ += boot_image_filename; 768 } 769 770 if (image_classes_filename_ != nullptr && !image_) { 771 Usage("--image-classes should only be used with --image"); 772 } 773 774 if (image_classes_filename_ != nullptr && !boot_image_option_.empty()) { 775 Usage("--image-classes should not be used with --boot-image"); 776 } 777 778 if (image_classes_zip_filename_ != nullptr && image_classes_filename_ == nullptr) { 779 Usage("--image-classes-zip should be used with --image-classes"); 780 } 781 782 if (compiled_classes_filename_ != nullptr && !image_) { 783 Usage("--compiled-classes should only be used with --image"); 784 } 785 786 if (compiled_classes_filename_ != nullptr && !boot_image_option_.empty()) { 787 Usage("--compiled-classes should not be used with --boot-image"); 788 } 789 790 if (compiled_classes_zip_filename_ != nullptr && compiled_classes_filename_ == nullptr) { 791 Usage("--compiled-classes-zip should be used with --compiled-classes"); 792 } 793 794 if (dex_filenames_.empty() && zip_fd_ == -1) { 795 Usage("Input must be supplied with either --dex-file or --zip-fd"); 796 } 797 798 if (!dex_filenames_.empty() && zip_fd_ != -1) { 799 Usage("--dex-file should not be used with --zip-fd"); 800 } 801 802 if (!dex_filenames_.empty() && !zip_location_.empty()) { 803 Usage("--dex-file should not be used with --zip-location"); 804 } 805 806 if (dex_locations_.empty()) { 807 for (const char* dex_file_name : dex_filenames_) { 808 dex_locations_.push_back(dex_file_name); 809 } 810 } else if (dex_locations_.size() != dex_filenames_.size()) { 811 Usage("--dex-location arguments do not match --dex-file arguments"); 812 } 813 814 if (zip_fd_ != -1 && zip_location_.empty()) { 815 Usage("--zip-location should be supplied with --zip-fd"); 816 } 817 818 if (boot_image_option_.empty()) { 819 if (image_base_ == 0) { 820 Usage("Non-zero --base not specified"); 821 } 822 } 823 824 oat_stripped_ = oat_filename_; 825 if (!oat_symbols.empty()) { 826 oat_unstripped_ = oat_symbols; 827 } else { 828 oat_unstripped_ = oat_filename_; 829 } 830 831 // If no instruction set feature was given, use the default one for the target 832 // instruction set. 833 if (instruction_set_features_.get() == nullptr) { 834 instruction_set_features_.reset( 835 InstructionSetFeatures::FromVariant(instruction_set_, "default", &error_msg)); 836 if (instruction_set_features_.get() == nullptr) { 837 Usage("Problem initializing default instruction set features variant: %s", 838 error_msg.c_str()); 839 } 840 } 841 842 if (instruction_set_ == kRuntimeISA) { 843 std::unique_ptr<const InstructionSetFeatures> runtime_features( 844 InstructionSetFeatures::FromCppDefines()); 845 if (!instruction_set_features_->Equals(runtime_features.get())) { 846 LOG(WARNING) << "Mismatch between dex2oat instruction set features (" 847 << *instruction_set_features_ << ") and those of dex2oat executable (" 848 << *runtime_features <<") for the command line:\n" 849 << CommandLine(); 850 } 851 } 852 853 if (compiler_filter_string == nullptr) { 854 if (instruction_set_ == kMips64) { 855 // TODO: fix compiler for Mips64. 856 compiler_filter_string = "interpret-only"; 857 } else if (image_) { 858 compiler_filter_string = "speed"; 859 } else { 860 // TODO: Migrate SMALL mode to command line option. 861 #if ART_SMALL_MODE 862 compiler_filter_string = "interpret-only"; 863 #else 864 compiler_filter_string = "speed"; 865 #endif 866 } 867 } 868 CHECK(compiler_filter_string != nullptr); 869 CompilerOptions::CompilerFilter compiler_filter = CompilerOptions::kDefaultCompilerFilter; 870 if (strcmp(compiler_filter_string, "verify-none") == 0) { 871 compiler_filter = CompilerOptions::kVerifyNone; 872 } else if (strcmp(compiler_filter_string, "interpret-only") == 0) { 873 compiler_filter = CompilerOptions::kInterpretOnly; 874 } else if (strcmp(compiler_filter_string, "space") == 0) { 875 compiler_filter = CompilerOptions::kSpace; 876 } else if (strcmp(compiler_filter_string, "balanced") == 0) { 877 compiler_filter = CompilerOptions::kBalanced; 878 } else if (strcmp(compiler_filter_string, "speed") == 0) { 879 compiler_filter = CompilerOptions::kSpeed; 880 } else if (strcmp(compiler_filter_string, "everything") == 0) { 881 compiler_filter = CompilerOptions::kEverything; 882 } else if (strcmp(compiler_filter_string, "time") == 0) { 883 compiler_filter = CompilerOptions::kTime; 884 } else { 885 Usage("Unknown --compiler-filter value %s", compiler_filter_string); 886 } 887 888 // Checks are all explicit until we know the architecture. 889 bool implicit_null_checks = false; 890 bool implicit_so_checks = false; 891 bool implicit_suspend_checks = false; 892 // Set the compilation target's implicit checks options. 893 switch (instruction_set_) { 894 case kArm: 895 case kThumb2: 896 case kArm64: 897 case kX86: 898 case kX86_64: 899 implicit_null_checks = true; 900 implicit_so_checks = true; 901 break; 902 903 default: 904 // Defaults are correct. 905 break; 906 } 907 908 if (print_pass_options) { 909 PassDriverMEOpts::PrintPassOptions(); 910 } 911 912 compiler_options_.reset(new CompilerOptions(compiler_filter, 913 huge_method_threshold, 914 large_method_threshold, 915 small_method_threshold, 916 tiny_method_threshold, 917 num_dex_methods_threshold, 918 generate_gdb_information, 919 include_patch_information, 920 top_k_profile_threshold, 921 include_debug_symbols, 922 implicit_null_checks, 923 implicit_so_checks, 924 implicit_suspend_checks, 925 compile_pic, 926 #ifdef ART_SEA_IR_MODE 927 true, 928 #endif 929 verbose_methods_.empty() ? 930 nullptr : 931 &verbose_methods_, 932 init_failure_output_.get())); 933 934 // Done with usage checks, enable watchdog if requested 935 if (watch_dog_enabled) { 936 watchdog_.reset(new WatchDog(true)); 937 } 938 939 // Fill some values into the key-value store for the oat header. 940 key_value_store_.reset(new SafeMap<std::string, std::string>()); 941 942 // Insert some compiler things. 943 { 944 std::ostringstream oss; 945 for (int i = 0; i < argc; ++i) { 946 if (i > 0) { 947 oss << ' '; 948 } 949 oss << argv[i]; 950 } 951 key_value_store_->Put(OatHeader::kDex2OatCmdLineKey, oss.str()); 952 oss.str(""); // Reset. 953 oss << kRuntimeISA; 954 key_value_store_->Put(OatHeader::kDex2OatHostKey, oss.str()); 955 key_value_store_->Put(OatHeader::kPicKey, compile_pic ? "true" : "false"); 956 } 957 } 958 959 // Check whether the oat output file is writable, and open it for later. 960 bool OpenFile() { 961 bool create_file = !oat_unstripped_.empty(); // as opposed to using open file descriptor 962 if (create_file) { 963 oat_file_.reset(OS::CreateEmptyFile(oat_unstripped_.c_str())); 964 if (oat_location_.empty()) { 965 oat_location_ = oat_filename_; 966 } 967 } else { 968 oat_file_.reset(new File(oat_fd_, oat_location_, true)); 969 oat_file_->DisableAutoClose(); 970 if (oat_file_->SetLength(0) != 0) { 971 PLOG(WARNING) << "Truncating oat file " << oat_location_ << " failed."; 972 } 973 } 974 if (oat_file_.get() == nullptr) { 975 PLOG(ERROR) << "Failed to create oat file: " << oat_location_; 976 return false; 977 } 978 if (create_file && fchmod(oat_file_->Fd(), 0644) != 0) { 979 PLOG(ERROR) << "Failed to make oat file world readable: " << oat_location_; 980 oat_file_->Erase(); 981 return false; 982 } 983 return true; 984 } 985 986 void EraseOatFile() { 987 DCHECK(oat_file_.get() != nullptr); 988 oat_file_->Erase(); 989 oat_file_.reset(); 990 } 991 992 // Set up the environment for compilation. Includes starting the runtime and loading/opening the 993 // boot class path. 994 bool Setup() { 995 TimingLogger::ScopedTiming t("dex2oat Setup", timings_); 996 RuntimeOptions runtime_options; 997 std::vector<const DexFile*> boot_class_path; 998 art::MemMap::Init(); // For ZipEntry::ExtractToMemMap. 999 if (boot_image_option_.empty()) { 1000 size_t failure_count = OpenDexFiles(dex_filenames_, dex_locations_, boot_class_path); 1001 if (failure_count > 0) { 1002 LOG(ERROR) << "Failed to open some dex files: " << failure_count; 1003 return false; 1004 } 1005 runtime_options.push_back(std::make_pair("bootclasspath", &boot_class_path)); 1006 } else { 1007 runtime_options.push_back(std::make_pair(boot_image_option_.c_str(), nullptr)); 1008 } 1009 for (size_t i = 0; i < runtime_args_.size(); i++) { 1010 runtime_options.push_back(std::make_pair(runtime_args_[i], nullptr)); 1011 } 1012 1013 verification_results_.reset(new VerificationResults(compiler_options_.get())); 1014 callbacks_.reset(new QuickCompilerCallbacks(verification_results_.get(), &method_inliner_map_)); 1015 runtime_options.push_back(std::make_pair("compilercallbacks", callbacks_.get())); 1016 runtime_options.push_back( 1017 std::make_pair("imageinstructionset", GetInstructionSetString(instruction_set_))); 1018 1019 if (!CreateRuntime(runtime_options)) { 1020 return false; 1021 } 1022 1023 // Runtime::Create acquired the mutator_lock_ that is normally given away when we 1024 // Runtime::Start, give it away now so that we don't starve GC. 1025 Thread* self = Thread::Current(); 1026 self->TransitionFromRunnableToSuspended(kNative); 1027 // If we're doing the image, override the compiler filter to force full compilation. Must be 1028 // done ahead of WellKnownClasses::Init that causes verification. Note: doesn't force 1029 // compilation of class initializers. 1030 // Whilst we're in native take the opportunity to initialize well known classes. 1031 WellKnownClasses::Init(self->GetJniEnv()); 1032 1033 // If --image-classes was specified, calculate the full list of classes to include in the image 1034 if (image_classes_filename_ != nullptr) { 1035 std::string error_msg; 1036 if (image_classes_zip_filename_ != nullptr) { 1037 image_classes_.reset(ReadImageClassesFromZip(image_classes_zip_filename_, 1038 image_classes_filename_, 1039 &error_msg)); 1040 } else { 1041 image_classes_.reset(ReadImageClassesFromFile(image_classes_filename_)); 1042 } 1043 if (image_classes_.get() == nullptr) { 1044 LOG(ERROR) << "Failed to create list of image classes from '" << image_classes_filename_ << 1045 "': " << error_msg; 1046 return false; 1047 } 1048 } else if (image_) { 1049 image_classes_.reset(new std::set<std::string>); 1050 } 1051 // If --compiled-classes was specified, calculate the full list of classes to compile in the 1052 // image. 1053 if (compiled_classes_filename_ != nullptr) { 1054 std::string error_msg; 1055 if (compiled_classes_zip_filename_ != nullptr) { 1056 compiled_classes_.reset(ReadImageClassesFromZip(compiled_classes_zip_filename_, 1057 compiled_classes_filename_, 1058 &error_msg)); 1059 } else { 1060 compiled_classes_.reset(ReadImageClassesFromFile(compiled_classes_filename_)); 1061 } 1062 if (compiled_classes_.get() == nullptr) { 1063 LOG(ERROR) << "Failed to create list of compiled classes from '" 1064 << compiled_classes_filename_ << "': " << error_msg; 1065 return false; 1066 } 1067 } else if (image_) { 1068 compiled_classes_.reset(nullptr); // By default compile everything. 1069 } 1070 1071 if (boot_image_option_.empty()) { 1072 dex_files_ = Runtime::Current()->GetClassLinker()->GetBootClassPath(); 1073 } else { 1074 if (dex_filenames_.empty()) { 1075 ATRACE_BEGIN("Opening zip archive from file descriptor"); 1076 std::string error_msg; 1077 std::unique_ptr<ZipArchive> zip_archive(ZipArchive::OpenFromFd(zip_fd_, 1078 zip_location_.c_str(), 1079 &error_msg)); 1080 if (zip_archive.get() == nullptr) { 1081 LOG(ERROR) << "Failed to open zip from file descriptor for '" << zip_location_ << "': " 1082 << error_msg; 1083 return false; 1084 } 1085 if (!DexFile::OpenFromZip(*zip_archive.get(), zip_location_, &error_msg, &dex_files_)) { 1086 LOG(ERROR) << "Failed to open dex from file descriptor for zip file '" << zip_location_ 1087 << "': " << error_msg; 1088 return false; 1089 } 1090 ATRACE_END(); 1091 } else { 1092 size_t failure_count = OpenDexFiles(dex_filenames_, dex_locations_, dex_files_); 1093 if (failure_count > 0) { 1094 LOG(ERROR) << "Failed to open some dex files: " << failure_count; 1095 return false; 1096 } 1097 } 1098 1099 constexpr bool kSaveDexInput = false; 1100 if (kSaveDexInput) { 1101 for (size_t i = 0; i < dex_files_.size(); ++i) { 1102 const DexFile* dex_file = dex_files_[i]; 1103 std::string tmp_file_name(StringPrintf("/data/local/tmp/dex2oat.%d.%zd.dex", getpid(), i)); 1104 std::unique_ptr<File> tmp_file(OS::CreateEmptyFile(tmp_file_name.c_str())); 1105 if (tmp_file.get() == nullptr) { 1106 PLOG(ERROR) << "Failed to open file " << tmp_file_name 1107 << ". Try: adb shell chmod 777 /data/local/tmp"; 1108 continue; 1109 } 1110 // This is just dumping files for debugging. Ignore errors, and leave remnants. 1111 UNUSED(tmp_file->WriteFully(dex_file->Begin(), dex_file->Size())); 1112 UNUSED(tmp_file->Flush()); 1113 UNUSED(tmp_file->Close()); 1114 LOG(INFO) << "Wrote input to " << tmp_file_name; 1115 } 1116 } 1117 } 1118 // Ensure opened dex files are writable for dex-to-dex transformations. 1119 for (const auto& dex_file : dex_files_) { 1120 if (!dex_file->EnableWrite()) { 1121 PLOG(ERROR) << "Failed to make .dex file writeable '" << dex_file->GetLocation() << "'\n"; 1122 } 1123 } 1124 1125 /* 1126 * If we're not in interpret-only or verify-none mode, go ahead and compile small applications. 1127 * Don't bother to check if we're doing the image. 1128 */ 1129 if (!image_ && compiler_options_->IsCompilationEnabled() && compiler_kind_ == Compiler::kQuick) { 1130 size_t num_methods = 0; 1131 for (size_t i = 0; i != dex_files_.size(); ++i) { 1132 const DexFile* dex_file = dex_files_[i]; 1133 CHECK(dex_file != nullptr); 1134 num_methods += dex_file->NumMethodIds(); 1135 } 1136 if (num_methods <= compiler_options_->GetNumDexMethodsThreshold()) { 1137 compiler_options_->SetCompilerFilter(CompilerOptions::kSpeed); 1138 VLOG(compiler) << "Below method threshold, compiling anyways"; 1139 } 1140 } 1141 1142 return true; 1143 } 1144 1145 // Create and invoke the compiler driver. This will compile all the dex files. 1146 void Compile() { 1147 TimingLogger::ScopedTiming t("dex2oat Compile", timings_); 1148 compiler_phases_timings_.reset(new CumulativeLogger("compilation times")); 1149 1150 // Handle and ClassLoader creation needs to come after Runtime::Create 1151 jobject class_loader = nullptr; 1152 Thread* self = Thread::Current(); 1153 if (!boot_image_option_.empty()) { 1154 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 1155 std::vector<const DexFile*> class_path_files(dex_files_); 1156 OpenClassPathFiles(runtime_->GetClassPathString(), class_path_files); 1157 ScopedObjectAccess soa(self); 1158 for (size_t i = 0; i < class_path_files.size(); i++) { 1159 class_linker->RegisterDexFile(*class_path_files[i]); 1160 } 1161 soa.Env()->AllocObject(WellKnownClasses::dalvik_system_PathClassLoader); 1162 ScopedLocalRef<jobject> class_loader_local(soa.Env(), 1163 soa.Env()->AllocObject(WellKnownClasses::dalvik_system_PathClassLoader)); 1164 class_loader = soa.Env()->NewGlobalRef(class_loader_local.get()); 1165 Runtime::Current()->SetCompileTimeClassPath(class_loader, class_path_files); 1166 } 1167 1168 driver_.reset(new CompilerDriver(compiler_options_.get(), 1169 verification_results_.get(), 1170 &method_inliner_map_, 1171 compiler_kind_, 1172 instruction_set_, 1173 instruction_set_features_.get(), 1174 image_, 1175 image_classes_.release(), 1176 compiled_classes_.release(), 1177 thread_count_, 1178 dump_stats_, 1179 dump_passes_, 1180 compiler_phases_timings_.get(), 1181 profile_file_)); 1182 1183 driver_->GetCompiler()->SetBitcodeFileName(*driver_, bitcode_filename_); 1184 1185 driver_->CompileAll(class_loader, dex_files_, timings_); 1186 } 1187 1188 // Notes on the interleaving of creating the image and oat file to 1189 // ensure the references between the two are correct. 1190 // 1191 // Currently we have a memory layout that looks something like this: 1192 // 1193 // +--------------+ 1194 // | image | 1195 // +--------------+ 1196 // | boot oat | 1197 // +--------------+ 1198 // | alloc spaces | 1199 // +--------------+ 1200 // 1201 // There are several constraints on the loading of the image and boot.oat. 1202 // 1203 // 1. The image is expected to be loaded at an absolute address and 1204 // contains Objects with absolute pointers within the image. 1205 // 1206 // 2. There are absolute pointers from Methods in the image to their 1207 // code in the oat. 1208 // 1209 // 3. There are absolute pointers from the code in the oat to Methods 1210 // in the image. 1211 // 1212 // 4. There are absolute pointers from code in the oat to other code 1213 // in the oat. 1214 // 1215 // To get this all correct, we go through several steps. 1216 // 1217 // 1. We prepare offsets for all data in the oat file and calculate 1218 // the oat data size and code size. During this stage, we also set 1219 // oat code offsets in methods for use by the image writer. 1220 // 1221 // 2. We prepare offsets for the objects in the image and calculate 1222 // the image size. 1223 // 1224 // 3. We create the oat file. Originally this was just our own proprietary 1225 // file but now it is contained within an ELF dynamic object (aka an .so 1226 // file). Since we know the image size and oat data size and code size we 1227 // can prepare the ELF headers and we then know the ELF memory segment 1228 // layout and we can now resolve all references. The compiler provides 1229 // LinkerPatch information in each CompiledMethod and we resolve these, 1230 // using the layout information and image object locations provided by 1231 // image writer, as we're writing the method code. 1232 // 1233 // 4. We create the image file. It needs to know where the oat file 1234 // will be loaded after itself. Originally when oat file was simply 1235 // memory mapped so we could predict where its contents were based 1236 // on the file size. Now that it is an ELF file, we need to inspect 1237 // the ELF file to understand the in memory segment layout including 1238 // where the oat header is located within. 1239 // TODO: We could just remember this information from step 3. 1240 // 1241 // 5. We fixup the ELF program headers so that dlopen will try to 1242 // load the .so at the desired location at runtime by offsetting the 1243 // Elf32_Phdr.p_vaddr values by the desired base address. 1244 // TODO: Do this in step 3. We already know the layout there. 1245 // 1246 // Steps 1.-3. are done by the CreateOatFile() above, steps 4.-5. 1247 // are done by the CreateImageFile() below. 1248 1249 1250 // Write out the generated code part. Calls the OatWriter and ElfBuilder. Also prepares the 1251 // ImageWriter, if necessary. 1252 // Note: Flushing (and closing) the file is the caller's responsibility, except for the failure 1253 // case (when the file will be explicitly erased). 1254 bool CreateOatFile() { 1255 CHECK(key_value_store_.get() != nullptr); 1256 1257 TimingLogger::ScopedTiming t("dex2oat Oat", timings_); 1258 1259 std::unique_ptr<OatWriter> oat_writer; 1260 { 1261 TimingLogger::ScopedTiming t2("dex2oat OatWriter", timings_); 1262 std::string image_file_location; 1263 uint32_t image_file_location_oat_checksum = 0; 1264 uintptr_t image_file_location_oat_data_begin = 0; 1265 int32_t image_patch_delta = 0; 1266 if (image_) { 1267 PrepareImageWriter(image_base_); 1268 } else { 1269 TimingLogger::ScopedTiming t3("Loading image checksum", timings_); 1270 gc::space::ImageSpace* image_space = Runtime::Current()->GetHeap()->GetImageSpace(); 1271 image_file_location_oat_checksum = image_space->GetImageHeader().GetOatChecksum(); 1272 image_file_location_oat_data_begin = 1273 reinterpret_cast<uintptr_t>(image_space->GetImageHeader().GetOatDataBegin()); 1274 image_file_location = image_space->GetImageFilename(); 1275 image_patch_delta = image_space->GetImageHeader().GetPatchDelta(); 1276 } 1277 1278 if (!image_file_location.empty()) { 1279 key_value_store_->Put(OatHeader::kImageLocationKey, image_file_location); 1280 } 1281 1282 oat_writer.reset(new OatWriter(dex_files_, image_file_location_oat_checksum, 1283 image_file_location_oat_data_begin, 1284 image_patch_delta, 1285 driver_.get(), 1286 image_writer_.get(), 1287 timings_, 1288 key_value_store_.get())); 1289 } 1290 1291 if (image_) { 1292 // The OatWriter constructor has already updated offsets in methods and we need to 1293 // prepare method offsets in the image address space for direct method patching. 1294 TimingLogger::ScopedTiming t2("dex2oat Prepare image address space", timings_); 1295 if (!image_writer_->PrepareImageAddressSpace()) { 1296 LOG(ERROR) << "Failed to prepare image address space."; 1297 return false; 1298 } 1299 } 1300 1301 { 1302 TimingLogger::ScopedTiming t2("dex2oat Write ELF", timings_); 1303 if (!driver_->WriteElf(android_root_, is_host_, dex_files_, oat_writer.get(), 1304 oat_file_.get())) { 1305 LOG(ERROR) << "Failed to write ELF file " << oat_file_->GetPath(); 1306 return false; 1307 } 1308 } 1309 1310 VLOG(compiler) << "Oat file written successfully (unstripped): " << oat_location_; 1311 return true; 1312 } 1313 1314 // If we are compiling an image, invoke the image creation routine. Else just skip. 1315 bool HandleImage() { 1316 if (image_) { 1317 TimingLogger::ScopedTiming t("dex2oat ImageWriter", timings_); 1318 if (!CreateImageFile()) { 1319 return false; 1320 } 1321 VLOG(compiler) << "Image written successfully: " << image_filename_; 1322 } 1323 return true; 1324 } 1325 1326 // Create a copy from unstripped to stripped. 1327 bool CopyUnstrippedToStripped() { 1328 // If we don't want to strip in place, copy from unstripped location to stripped location. 1329 // We need to strip after image creation because FixupElf needs to use .strtab. 1330 if (oat_unstripped_ != oat_stripped_) { 1331 // If the oat file is still open, flush it. 1332 if (oat_file_.get() != nullptr && oat_file_->IsOpened()) { 1333 if (!FlushCloseOatFile()) { 1334 return false; 1335 } 1336 } 1337 1338 TimingLogger::ScopedTiming t("dex2oat OatFile copy", timings_); 1339 std::unique_ptr<File> in(OS::OpenFileForReading(oat_unstripped_.c_str())); 1340 std::unique_ptr<File> out(OS::CreateEmptyFile(oat_stripped_.c_str())); 1341 size_t buffer_size = 8192; 1342 std::unique_ptr<uint8_t> buffer(new uint8_t[buffer_size]); 1343 while (true) { 1344 int bytes_read = TEMP_FAILURE_RETRY(read(in->Fd(), buffer.get(), buffer_size)); 1345 if (bytes_read <= 0) { 1346 break; 1347 } 1348 bool write_ok = out->WriteFully(buffer.get(), bytes_read); 1349 CHECK(write_ok); 1350 } 1351 if (kUsePortableCompiler) { 1352 oat_file_.reset(out.release()); 1353 } else { 1354 if (out->FlushCloseOrErase() != 0) { 1355 PLOG(ERROR) << "Failed to flush and close copied oat file: " << oat_stripped_; 1356 return false; 1357 } 1358 } 1359 VLOG(compiler) << "Oat file copied successfully (stripped): " << oat_stripped_; 1360 } 1361 return true; 1362 } 1363 1364 // Run the ElfStripper. Currently only relevant for the portable compiler. 1365 bool Strip() { 1366 if (kUsePortableCompiler) { 1367 // Portable includes debug symbols unconditionally. If we are not supposed to create them, 1368 // strip them now. Quick generates debug symbols only when the flag(s) are set. 1369 if (!compiler_options_->GetIncludeDebugSymbols()) { 1370 CHECK(oat_file_.get() != nullptr && oat_file_->IsOpened()); 1371 1372 TimingLogger::ScopedTiming t("dex2oat ElfStripper", timings_); 1373 // Strip unneeded sections for target 1374 off_t seek_actual = lseek(oat_file_->Fd(), 0, SEEK_SET); 1375 CHECK_EQ(0, seek_actual); 1376 std::string error_msg; 1377 if (!ElfFile::Strip(oat_file_.get(), &error_msg)) { 1378 LOG(ERROR) << "Failed to strip elf file: " << error_msg; 1379 oat_file_->Erase(); 1380 return false; 1381 } 1382 1383 if (!FlushCloseOatFile()) { 1384 return false; 1385 } 1386 1387 // We wrote the oat file successfully, and want to keep it. 1388 VLOG(compiler) << "Oat file written successfully (stripped): " << oat_location_; 1389 } else { 1390 VLOG(compiler) << "Oat file written successfully without stripping: " << oat_location_; 1391 } 1392 } 1393 1394 return true; 1395 } 1396 1397 bool FlushOatFile() { 1398 if (oat_file_.get() != nullptr) { 1399 TimingLogger::ScopedTiming t2("dex2oat Flush ELF", timings_); 1400 if (oat_file_->Flush() != 0) { 1401 PLOG(ERROR) << "Failed to flush oat file: " << oat_location_ << " / " 1402 << oat_filename_; 1403 oat_file_->Erase(); 1404 return false; 1405 } 1406 } 1407 return true; 1408 } 1409 1410 bool FlushCloseOatFile() { 1411 if (oat_file_.get() != nullptr) { 1412 std::unique_ptr<File> tmp(oat_file_.release()); 1413 if (tmp->FlushCloseOrErase() != 0) { 1414 PLOG(ERROR) << "Failed to flush and close oat file: " << oat_location_ << " / " 1415 << oat_filename_; 1416 return false; 1417 } 1418 } 1419 return true; 1420 } 1421 1422 void DumpTiming() { 1423 if (dump_timing_ || (dump_slow_timing_ && timings_->GetTotalNs() > MsToNs(1000))) { 1424 LOG(INFO) << Dumpable<TimingLogger>(*timings_); 1425 } 1426 if (dump_passes_) { 1427 LOG(INFO) << Dumpable<CumulativeLogger>(*driver_->GetTimingsLogger()); 1428 } 1429 } 1430 1431 CompilerOptions* GetCompilerOptions() const { 1432 return compiler_options_.get(); 1433 } 1434 1435 bool IsImage() const { 1436 return image_; 1437 } 1438 1439 bool IsHost() const { 1440 return is_host_; 1441 } 1442 1443 private: 1444 static size_t OpenDexFiles(const std::vector<const char*>& dex_filenames, 1445 const std::vector<const char*>& dex_locations, 1446 std::vector<const DexFile*>& dex_files) { 1447 size_t failure_count = 0; 1448 for (size_t i = 0; i < dex_filenames.size(); i++) { 1449 const char* dex_filename = dex_filenames[i]; 1450 const char* dex_location = dex_locations[i]; 1451 ATRACE_BEGIN(StringPrintf("Opening dex file '%s'", dex_filenames[i]).c_str()); 1452 std::string error_msg; 1453 if (!OS::FileExists(dex_filename)) { 1454 LOG(WARNING) << "Skipping non-existent dex file '" << dex_filename << "'"; 1455 continue; 1456 } 1457 if (!DexFile::Open(dex_filename, dex_location, &error_msg, &dex_files)) { 1458 LOG(WARNING) << "Failed to open .dex from file '" << dex_filename << "': " << error_msg; 1459 ++failure_count; 1460 } 1461 ATRACE_END(); 1462 } 1463 return failure_count; 1464 } 1465 1466 // Returns true if dex_files has a dex with the named location. 1467 static bool DexFilesContains(const std::vector<const DexFile*>& dex_files, 1468 const std::string& location) { 1469 for (size_t i = 0; i < dex_files.size(); ++i) { 1470 if (dex_files[i]->GetLocation() == location) { 1471 return true; 1472 } 1473 } 1474 return false; 1475 } 1476 1477 // Appends to dex_files any elements of class_path that it doesn't already 1478 // contain. This will open those dex files as necessary. 1479 static void OpenClassPathFiles(const std::string& class_path, 1480 std::vector<const DexFile*>& dex_files) { 1481 std::vector<std::string> parsed; 1482 Split(class_path, ':', &parsed); 1483 // Take Locks::mutator_lock_ so that lock ordering on the ClassLinker::dex_lock_ is maintained. 1484 ScopedObjectAccess soa(Thread::Current()); 1485 for (size_t i = 0; i < parsed.size(); ++i) { 1486 if (DexFilesContains(dex_files, parsed[i])) { 1487 continue; 1488 } 1489 std::string error_msg; 1490 if (!DexFile::Open(parsed[i].c_str(), parsed[i].c_str(), &error_msg, &dex_files)) { 1491 LOG(WARNING) << "Failed to open dex file '" << parsed[i] << "': " << error_msg; 1492 } 1493 } 1494 } 1495 1496 // Create a runtime necessary for compilation. 1497 bool CreateRuntime(const RuntimeOptions& runtime_options) 1498 SHARED_TRYLOCK_FUNCTION(true, Locks::mutator_lock_) { 1499 if (!Runtime::Create(runtime_options, false)) { 1500 LOG(ERROR) << "Failed to create runtime"; 1501 return false; 1502 } 1503 Runtime* runtime = Runtime::Current(); 1504 runtime->SetInstructionSet(instruction_set_); 1505 for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) { 1506 Runtime::CalleeSaveType type = Runtime::CalleeSaveType(i); 1507 if (!runtime->HasCalleeSaveMethod(type)) { 1508 runtime->SetCalleeSaveMethod(runtime->CreateCalleeSaveMethod(), type); 1509 } 1510 } 1511 runtime->GetClassLinker()->FixupDexCaches(runtime->GetResolutionMethod()); 1512 runtime->GetClassLinker()->RunRootClinits(); 1513 runtime_ = runtime; 1514 return true; 1515 } 1516 1517 void PrepareImageWriter(uintptr_t image_base) { 1518 image_writer_.reset(new ImageWriter(*driver_, image_base, compiler_options_->GetCompilePic())); 1519 } 1520 1521 // Let the ImageWriter write the image file. If we do not compile PIC, also fix up the oat file. 1522 bool CreateImageFile() 1523 LOCKS_EXCLUDED(Locks::mutator_lock_) { 1524 CHECK(image_writer_ != nullptr); 1525 if (!image_writer_->Write(image_filename_, oat_unstripped_, oat_location_)) { 1526 LOG(ERROR) << "Failed to create image file " << image_filename_; 1527 return false; 1528 } 1529 uintptr_t oat_data_begin = image_writer_->GetOatDataBegin(); 1530 1531 // Destroy ImageWriter before doing FixupElf. 1532 image_writer_.reset(); 1533 1534 // Do not fix up the ELF file if we are --compile-pic 1535 if (!compiler_options_->GetCompilePic()) { 1536 std::unique_ptr<File> oat_file(OS::OpenFileReadWrite(oat_unstripped_.c_str())); 1537 if (oat_file.get() == nullptr) { 1538 PLOG(ERROR) << "Failed to open ELF file: " << oat_unstripped_; 1539 return false; 1540 } 1541 1542 if (!ElfWriter::Fixup(oat_file.get(), oat_data_begin)) { 1543 oat_file->Erase(); 1544 LOG(ERROR) << "Failed to fixup ELF file " << oat_file->GetPath(); 1545 return false; 1546 } 1547 1548 if (oat_file->FlushCloseOrErase()) { 1549 PLOG(ERROR) << "Failed to flush and close fixed ELF file " << oat_file->GetPath(); 1550 return false; 1551 } 1552 } 1553 1554 return true; 1555 } 1556 1557 // Reads the class names (java.lang.Object) and returns a set of descriptors (Ljava/lang/Object;) 1558 static std::set<std::string>* ReadImageClassesFromFile(const char* image_classes_filename) { 1559 std::unique_ptr<std::ifstream> image_classes_file(new std::ifstream(image_classes_filename, 1560 std::ifstream::in)); 1561 if (image_classes_file.get() == nullptr) { 1562 LOG(ERROR) << "Failed to open image classes file " << image_classes_filename; 1563 return nullptr; 1564 } 1565 std::unique_ptr<std::set<std::string>> result(ReadImageClasses(*image_classes_file)); 1566 image_classes_file->close(); 1567 return result.release(); 1568 } 1569 1570 static std::set<std::string>* ReadImageClasses(std::istream& image_classes_stream) { 1571 std::unique_ptr<std::set<std::string>> image_classes(new std::set<std::string>); 1572 while (image_classes_stream.good()) { 1573 std::string dot; 1574 std::getline(image_classes_stream, dot); 1575 if (StartsWith(dot, "#") || dot.empty()) { 1576 continue; 1577 } 1578 std::string descriptor(DotToDescriptor(dot.c_str())); 1579 image_classes->insert(descriptor); 1580 } 1581 return image_classes.release(); 1582 } 1583 1584 // Reads the class names (java.lang.Object) and returns a set of descriptors (Ljava/lang/Object;) 1585 static std::set<std::string>* ReadImageClassesFromZip(const char* zip_filename, 1586 const char* image_classes_filename, 1587 std::string* error_msg) { 1588 std::unique_ptr<ZipArchive> zip_archive(ZipArchive::Open(zip_filename, error_msg)); 1589 if (zip_archive.get() == nullptr) { 1590 return nullptr; 1591 } 1592 std::unique_ptr<ZipEntry> zip_entry(zip_archive->Find(image_classes_filename, error_msg)); 1593 if (zip_entry.get() == nullptr) { 1594 *error_msg = StringPrintf("Failed to find '%s' within '%s': %s", image_classes_filename, 1595 zip_filename, error_msg->c_str()); 1596 return nullptr; 1597 } 1598 std::unique_ptr<MemMap> image_classes_file(zip_entry->ExtractToMemMap(zip_filename, 1599 image_classes_filename, 1600 error_msg)); 1601 if (image_classes_file.get() == nullptr) { 1602 *error_msg = StringPrintf("Failed to extract '%s' from '%s': %s", image_classes_filename, 1603 zip_filename, error_msg->c_str()); 1604 return nullptr; 1605 } 1606 const std::string image_classes_string(reinterpret_cast<char*>(image_classes_file->Begin()), 1607 image_classes_file->Size()); 1608 std::istringstream image_classes_stream(image_classes_string); 1609 return ReadImageClasses(image_classes_stream); 1610 } 1611 1612 void LogCompletionTime() { 1613 LOG(INFO) << "dex2oat took " << PrettyDuration(NanoTime() - start_ns_) 1614 << " (threads: " << thread_count_ << ") " 1615 << driver_->GetMemoryUsageString(); 1616 } 1617 1618 std::unique_ptr<CompilerOptions> compiler_options_; 1619 Compiler::Kind compiler_kind_; 1620 1621 InstructionSet instruction_set_; 1622 std::unique_ptr<const InstructionSetFeatures> instruction_set_features_; 1623 1624 std::unique_ptr<SafeMap<std::string, std::string> > key_value_store_; 1625 1626 std::unique_ptr<VerificationResults> verification_results_; 1627 DexFileToMethodInlinerMap method_inliner_map_; 1628 std::unique_ptr<QuickCompilerCallbacks> callbacks_; 1629 1630 // Not a unique_ptr as we want to just exit on non-debug builds, not bringing the runtime down 1631 // in an orderly fashion. The destructor takes care of deleting this. 1632 Runtime* runtime_; 1633 1634 size_t thread_count_; 1635 uint64_t start_ns_; 1636 std::unique_ptr<WatchDog> watchdog_; 1637 std::unique_ptr<File> oat_file_; 1638 std::string oat_stripped_; 1639 std::string oat_unstripped_; 1640 std::string oat_location_; 1641 std::string oat_filename_; 1642 int oat_fd_; 1643 std::string bitcode_filename_; 1644 std::vector<const char*> dex_filenames_; 1645 std::vector<const char*> dex_locations_; 1646 int zip_fd_; 1647 std::string zip_location_; 1648 std::string boot_image_option_; 1649 std::vector<const char*> runtime_args_; 1650 std::string image_filename_; 1651 uintptr_t image_base_; 1652 const char* image_classes_zip_filename_; 1653 const char* image_classes_filename_; 1654 const char* compiled_classes_zip_filename_; 1655 const char* compiled_classes_filename_; 1656 std::unique_ptr<std::set<std::string>> image_classes_; 1657 std::unique_ptr<std::set<std::string>> compiled_classes_; 1658 bool image_; 1659 std::unique_ptr<ImageWriter> image_writer_; 1660 bool is_host_; 1661 std::string android_root_; 1662 std::vector<const DexFile*> dex_files_; 1663 std::unique_ptr<CompilerDriver> driver_; 1664 std::vector<std::string> verbose_methods_; 1665 bool dump_stats_; 1666 bool dump_passes_; 1667 bool dump_timing_; 1668 bool dump_slow_timing_; 1669 std::string profile_file_; // Profile file to use 1670 TimingLogger* timings_; 1671 std::unique_ptr<CumulativeLogger> compiler_phases_timings_; 1672 std::unique_ptr<std::ostream> init_failure_output_; 1673 1674 DISALLOW_IMPLICIT_CONSTRUCTORS(Dex2Oat); 1675}; 1676 1677const unsigned int WatchDog::kWatchDogWarningSeconds; 1678const unsigned int WatchDog::kWatchDogTimeoutSeconds; 1679 1680static void b13564922() { 1681#if defined(__linux__) && defined(__arm__) 1682 int major, minor; 1683 struct utsname uts; 1684 if (uname(&uts) != -1 && 1685 sscanf(uts.release, "%d.%d", &major, &minor) == 2 && 1686 ((major < 3) || ((major == 3) && (minor < 4)))) { 1687 // Kernels before 3.4 don't handle the ASLR well and we can run out of address 1688 // space (http://b/13564922). Work around the issue by inhibiting further mmap() randomization. 1689 int old_personality = personality(0xffffffff); 1690 if ((old_personality & ADDR_NO_RANDOMIZE) == 0) { 1691 int new_personality = personality(old_personality | ADDR_NO_RANDOMIZE); 1692 if (new_personality == -1) { 1693 LOG(WARNING) << "personality(. | ADDR_NO_RANDOMIZE) failed."; 1694 } 1695 } 1696 } 1697#endif 1698} 1699 1700static int CompileImage(Dex2Oat& dex2oat) { 1701 dex2oat.Compile(); 1702 1703 // Create the boot.oat. 1704 if (!dex2oat.CreateOatFile()) { 1705 dex2oat.EraseOatFile(); 1706 return EXIT_FAILURE; 1707 } 1708 1709 // Flush and close the boot.oat. We always expect the output file by name, and it will be 1710 // re-opened from the unstripped name. 1711 if (!dex2oat.FlushCloseOatFile()) { 1712 return EXIT_FAILURE; 1713 } 1714 1715 // Creates the boot.art and patches the boot.oat. 1716 if (!dex2oat.HandleImage()) { 1717 return EXIT_FAILURE; 1718 } 1719 1720 // When given --host, finish early without stripping. 1721 if (dex2oat.IsHost()) { 1722 dex2oat.DumpTiming(); 1723 return EXIT_SUCCESS; 1724 } 1725 1726 // Copy unstripped to stripped location, if necessary. 1727 if (!dex2oat.CopyUnstrippedToStripped()) { 1728 return EXIT_FAILURE; 1729 } 1730 1731 // Strip, if necessary. 1732 if (!dex2oat.Strip()) { 1733 return EXIT_FAILURE; 1734 } 1735 1736 // FlushClose again, as stripping might have re-opened the oat file. 1737 if (!dex2oat.FlushCloseOatFile()) { 1738 return EXIT_FAILURE; 1739 } 1740 1741 dex2oat.DumpTiming(); 1742 return EXIT_SUCCESS; 1743} 1744 1745static int CompileApp(Dex2Oat& dex2oat) { 1746 dex2oat.Compile(); 1747 1748 // Create the app oat. 1749 if (!dex2oat.CreateOatFile()) { 1750 dex2oat.EraseOatFile(); 1751 return EXIT_FAILURE; 1752 } 1753 1754 // Do not close the oat file here. We might haven gotten the output file by file descriptor, 1755 // which we would lose. 1756 if (!dex2oat.FlushOatFile()) { 1757 return EXIT_FAILURE; 1758 } 1759 1760 // When given --host, finish early without stripping. 1761 if (dex2oat.IsHost()) { 1762 if (!dex2oat.FlushCloseOatFile()) { 1763 return EXIT_FAILURE; 1764 } 1765 1766 dex2oat.DumpTiming(); 1767 return EXIT_SUCCESS; 1768 } 1769 1770 // Copy unstripped to stripped location, if necessary. This will implicitly flush & close the 1771 // unstripped version. If this is given, we expect to be able to open writable files by name. 1772 if (!dex2oat.CopyUnstrippedToStripped()) { 1773 return EXIT_FAILURE; 1774 } 1775 1776 // Strip, if necessary. 1777 if (!dex2oat.Strip()) { 1778 return EXIT_FAILURE; 1779 } 1780 1781 // Flush and close the file. 1782 if (!dex2oat.FlushCloseOatFile()) { 1783 return EXIT_FAILURE; 1784 } 1785 1786 dex2oat.DumpTiming(); 1787 return EXIT_SUCCESS; 1788} 1789 1790static int dex2oat(int argc, char** argv) { 1791 b13564922(); 1792 1793 TimingLogger timings("compiler", false, false); 1794 1795 Dex2Oat dex2oat(&timings); 1796 1797 // Parse arguments. Argument mistakes will lead to exit(EXIT_FAILURE) in UsageError. 1798 dex2oat.ParseArgs(argc, argv); 1799 1800 // Check early that the result of compilation can be written 1801 if (!dex2oat.OpenFile()) { 1802 return EXIT_FAILURE; 1803 } 1804 1805 LOG(INFO) << CommandLine(); 1806 1807 if (!dex2oat.Setup()) { 1808 dex2oat.EraseOatFile(); 1809 return EXIT_FAILURE; 1810 } 1811 1812 if (dex2oat.IsImage()) { 1813 return CompileImage(dex2oat); 1814 } else { 1815 return CompileApp(dex2oat); 1816 } 1817} 1818} // namespace art 1819 1820int main(int argc, char** argv) { 1821 int result = art::dex2oat(argc, argv); 1822 // Everything was done, do an explicit exit here to avoid running Runtime destructors that take 1823 // time (bug 10645725) unless we're a debug build or running on valgrind. Note: The Dex2Oat class 1824 // should not destruct the runtime in this case. 1825 if (!art::kIsDebugBuild && (RUNNING_ON_VALGRIND == 0)) { 1826 exit(result); 1827 } 1828 return result; 1829} 1830