| /* |
| * Copyright (C) 2011 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <inttypes.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <sys/stat.h> |
| #include "base/memory_tool.h" |
| |
| #include <forward_list> |
| #include <fstream> |
| #include <iostream> |
| #include <limits> |
| #include <sstream> |
| #include <string> |
| #include <type_traits> |
| #include <unordered_set> |
| #include <vector> |
| |
| #if defined(__linux__) && defined(__arm__) |
| #include <sys/personality.h> |
| #include <sys/utsname.h> |
| #endif |
| |
| #include "android-base/stringprintf.h" |
| #include "android-base/strings.h" |
| |
| #include "arch/instruction_set_features.h" |
| #include "arch/mips/instruction_set_features_mips.h" |
| #include "art_method-inl.h" |
| #include "base/callee_save_type.h" |
| #include "base/dumpable.h" |
| #include "base/file_utils.h" |
| #include "base/macros.h" |
| #include "base/scoped_flock.h" |
| #include "base/stl_util.h" |
| #include "base/stringpiece.h" |
| #include "base/time_utils.h" |
| #include "base/timing_logger.h" |
| #include "base/unix_file/fd_file.h" |
| #include "class_linker.h" |
| #include "class_loader_context.h" |
| #include "cmdline_parser.h" |
| #include "compiler.h" |
| #include "compiler_callbacks.h" |
| #include "debug/elf_debug_writer.h" |
| #include "debug/method_debug_info.h" |
| #include "dex/quick_compiler_callbacks.h" |
| #include "dex/verification_results.h" |
| #include "dex2oat_options.h" |
| #include "dex2oat_return_codes.h" |
| #include "dex_file-inl.h" |
| #include "driver/compiler_driver.h" |
| #include "driver/compiler_options.h" |
| #include "driver/compiler_options_map-inl.h" |
| #include "elf_file.h" |
| #include "gc/space/image_space.h" |
| #include "gc/space/space-inl.h" |
| #include "gc/verification.h" |
| #include "interpreter/unstarted_runtime.h" |
| #include "java_vm_ext.h" |
| #include "jit/profile_compilation_info.h" |
| #include "leb128.h" |
| #include "linker/buffered_output_stream.h" |
| #include "linker/elf_writer.h" |
| #include "linker/elf_writer_quick.h" |
| #include "linker/file_output_stream.h" |
| #include "linker/image_writer.h" |
| #include "linker/multi_oat_relative_patcher.h" |
| #include "linker/oat_writer.h" |
| #include "mirror/class-inl.h" |
| #include "mirror/class_loader.h" |
| #include "mirror/object-inl.h" |
| #include "mirror/object_array-inl.h" |
| #include "oat_file.h" |
| #include "oat_file_assistant.h" |
| #include "os.h" |
| #include "runtime.h" |
| #include "runtime_options.h" |
| #include "scoped_thread_state_change-inl.h" |
| #include "utils.h" |
| #include "vdex_file.h" |
| #include "verifier/verifier_deps.h" |
| #include "well_known_classes.h" |
| #include "zip_archive.h" |
| |
| namespace art { |
| |
| using android::base::StringAppendV; |
| using android::base::StringPrintf; |
| |
| static constexpr size_t kDefaultMinDexFilesForSwap = 2; |
| static constexpr size_t kDefaultMinDexFileCumulativeSizeForSwap = 20 * MB; |
| |
| // Compiler filter override for very large apps. |
| static constexpr CompilerFilter::Filter kLargeAppFilter = CompilerFilter::kVerify; |
| |
| static int original_argc; |
| static char** original_argv; |
| |
| static std::string CommandLine() { |
| std::vector<std::string> command; |
| for (int i = 0; i < original_argc; ++i) { |
| command.push_back(original_argv[i]); |
| } |
| return android::base::Join(command, ' '); |
| } |
| |
| // A stripped version. Remove some less essential parameters. If we see a "--zip-fd=" parameter, be |
| // even more aggressive. There won't be much reasonable data here for us in that case anyways (the |
| // locations are all staged). |
| static std::string StrippedCommandLine() { |
| std::vector<std::string> command; |
| |
| // Do a pre-pass to look for zip-fd and the compiler filter. |
| bool saw_zip_fd = false; |
| bool saw_compiler_filter = false; |
| for (int i = 0; i < original_argc; ++i) { |
| if (android::base::StartsWith(original_argv[i], "--zip-fd=")) { |
| saw_zip_fd = true; |
| } |
| if (android::base::StartsWith(original_argv[i], "--compiler-filter=")) { |
| saw_compiler_filter = true; |
| } |
| } |
| |
| // Now filter out things. |
| for (int i = 0; i < original_argc; ++i) { |
| // All runtime-arg parameters are dropped. |
| if (strcmp(original_argv[i], "--runtime-arg") == 0) { |
| i++; // Drop the next part, too. |
| continue; |
| } |
| |
| // Any instruction-setXXX is dropped. |
| if (android::base::StartsWith(original_argv[i], "--instruction-set")) { |
| continue; |
| } |
| |
| // The boot image is dropped. |
| if (android::base::StartsWith(original_argv[i], "--boot-image=")) { |
| continue; |
| } |
| |
| // The image format is dropped. |
| if (android::base::StartsWith(original_argv[i], "--image-format=")) { |
| continue; |
| } |
| |
| // This should leave any dex-file and oat-file options, describing what we compiled. |
| |
| // However, we prefer to drop this when we saw --zip-fd. |
| if (saw_zip_fd) { |
| // Drop anything --zip-X, --dex-X, --oat-X, --swap-X, or --app-image-X |
| if (android::base::StartsWith(original_argv[i], "--zip-") || |
| android::base::StartsWith(original_argv[i], "--dex-") || |
| android::base::StartsWith(original_argv[i], "--oat-") || |
| android::base::StartsWith(original_argv[i], "--swap-") || |
| android::base::StartsWith(original_argv[i], "--app-image-")) { |
| continue; |
| } |
| } |
| |
| command.push_back(original_argv[i]); |
| } |
| |
| if (!saw_compiler_filter) { |
| command.push_back("--compiler-filter=" + |
| CompilerFilter::NameOfFilter(CompilerFilter::kDefaultCompilerFilter)); |
| } |
| |
| // Construct the final output. |
| if (command.size() <= 1U) { |
| // It seems only "/system/bin/dex2oat" is left, or not even that. Use a pretty line. |
| return "Starting dex2oat."; |
| } |
| return android::base::Join(command, ' '); |
| } |
| |
| static void UsageErrorV(const char* fmt, va_list ap) { |
| std::string error; |
| StringAppendV(&error, fmt, ap); |
| LOG(ERROR) << error; |
| } |
| |
| static void UsageError(const char* fmt, ...) { |
| va_list ap; |
| va_start(ap, fmt); |
| UsageErrorV(fmt, ap); |
| va_end(ap); |
| } |
| |
| NO_RETURN static void Usage(const char* fmt, ...) { |
| va_list ap; |
| va_start(ap, fmt); |
| UsageErrorV(fmt, ap); |
| va_end(ap); |
| |
| UsageError("Command: %s", CommandLine().c_str()); |
| |
| UsageError("Usage: dex2oat [options]..."); |
| UsageError(""); |
| UsageError(" -j<number>: specifies the number of threads used for compilation."); |
| UsageError(" Default is the number of detected hardware threads available on the"); |
| UsageError(" host system."); |
| UsageError(" Example: -j12"); |
| UsageError(""); |
| UsageError(" --dex-file=<dex-file>: specifies a .dex, .jar, or .apk file to compile."); |
| UsageError(" Example: --dex-file=/system/framework/core.jar"); |
| UsageError(""); |
| UsageError(" --dex-location=<dex-location>: specifies an alternative dex location to"); |
| UsageError(" encode in the oat file for the corresponding --dex-file argument."); |
| UsageError(" Example: --dex-file=/home/build/out/system/framework/core.jar"); |
| UsageError(" --dex-location=/system/framework/core.jar"); |
| UsageError(""); |
| UsageError(" --zip-fd=<file-descriptor>: specifies a file descriptor of a zip file"); |
| UsageError(" containing a classes.dex file to compile."); |
| UsageError(" Example: --zip-fd=5"); |
| UsageError(""); |
| UsageError(" --zip-location=<zip-location>: specifies a symbolic name for the file"); |
| UsageError(" corresponding to the file descriptor specified by --zip-fd."); |
| UsageError(" Example: --zip-location=/system/app/Calculator.apk"); |
| UsageError(""); |
| UsageError(" --oat-file=<file.oat>: specifies an oat output destination via a filename."); |
| UsageError(" Example: --oat-file=/system/framework/boot.oat"); |
| UsageError(""); |
| UsageError(" --oat-fd=<number>: specifies the oat output destination via a file descriptor."); |
| UsageError(" Example: --oat-fd=6"); |
| UsageError(""); |
| UsageError(" --input-vdex-fd=<number>: specifies the vdex input source via a file descriptor."); |
| UsageError(" Example: --input-vdex-fd=6"); |
| UsageError(""); |
| UsageError(" --output-vdex-fd=<number>: specifies the vdex output destination via a file"); |
| UsageError(" descriptor."); |
| UsageError(" Example: --output-vdex-fd=6"); |
| UsageError(""); |
| UsageError(" --oat-location=<oat-name>: specifies a symbolic name for the file corresponding"); |
| UsageError(" to the file descriptor specified by --oat-fd."); |
| UsageError(" Example: --oat-location=/data/dalvik-cache/system@app@Calculator.apk.oat"); |
| UsageError(""); |
| UsageError(" --oat-symbols=<file.oat>: specifies an oat output destination with full symbols."); |
| UsageError(" Example: --oat-symbols=/symbols/system/framework/boot.oat"); |
| UsageError(""); |
| UsageError(" --image=<file.art>: specifies an output image filename."); |
| UsageError(" Example: --image=/system/framework/boot.art"); |
| UsageError(""); |
| UsageError(" --image-format=(uncompressed|lz4|lz4hc):"); |
| UsageError(" Which format to store the image."); |
| UsageError(" Example: --image-format=lz4"); |
| UsageError(" Default: uncompressed"); |
| UsageError(""); |
| UsageError(" --image-classes=<classname-file>: specifies classes to include in an image."); |
| UsageError(" Example: --image=frameworks/base/preloaded-classes"); |
| UsageError(""); |
| UsageError(" --base=<hex-address>: specifies the base address when creating a boot image."); |
| UsageError(" Example: --base=0x50000000"); |
| UsageError(""); |
| UsageError(" --boot-image=<file.art>: provide the image file for the boot class path."); |
| UsageError(" Do not include the arch as part of the name, it is added automatically."); |
| UsageError(" Example: --boot-image=/system/framework/boot.art"); |
| UsageError(" (specifies /system/framework/<arch>/boot.art as the image file)"); |
| UsageError(" Default: $ANDROID_ROOT/system/framework/boot.art"); |
| UsageError(""); |
| UsageError(" --android-root=<path>: used to locate libraries for portable linking."); |
| UsageError(" Example: --android-root=out/host/linux-x86"); |
| UsageError(" Default: $ANDROID_ROOT"); |
| UsageError(""); |
| UsageError(" --instruction-set=(arm|arm64|mips|mips64|x86|x86_64): compile for a particular"); |
| UsageError(" instruction set."); |
| UsageError(" Example: --instruction-set=x86"); |
| UsageError(" Default: arm"); |
| UsageError(""); |
| UsageError(" --instruction-set-features=...,: Specify instruction set features"); |
| UsageError(" Example: --instruction-set-features=div"); |
| UsageError(" Default: default"); |
| UsageError(""); |
| UsageError(" --compile-pic: Force indirect use of code, methods, and classes"); |
| UsageError(" Default: disabled"); |
| UsageError(""); |
| UsageError(" --compiler-backend=(Quick|Optimizing): select compiler backend"); |
| UsageError(" set."); |
| UsageError(" Example: --compiler-backend=Optimizing"); |
| UsageError(" Default: Optimizing"); |
| UsageError(""); |
| UsageError(" --compiler-filter=" |
| "(assume-verified" |
| "|extract" |
| "|verify" |
| "|quicken" |
| "|space-profile" |
| "|space" |
| "|speed-profile" |
| "|speed" |
| "|everything-profile" |
| "|everything):"); |
| UsageError(" select compiler filter."); |
| UsageError(" Example: --compiler-filter=everything"); |
| UsageError(" Default: speed"); |
| UsageError(""); |
| UsageError(" --huge-method-max=<method-instruction-count>: threshold size for a huge"); |
| UsageError(" method for compiler filter tuning."); |
| UsageError(" Example: --huge-method-max=%d", CompilerOptions::kDefaultHugeMethodThreshold); |
| UsageError(" Default: %d", CompilerOptions::kDefaultHugeMethodThreshold); |
| UsageError(""); |
| UsageError(" --large-method-max=<method-instruction-count>: threshold size for a large"); |
| UsageError(" method for compiler filter tuning."); |
| UsageError(" Example: --large-method-max=%d", CompilerOptions::kDefaultLargeMethodThreshold); |
| UsageError(" Default: %d", CompilerOptions::kDefaultLargeMethodThreshold); |
| UsageError(""); |
| UsageError(" --small-method-max=<method-instruction-count>: threshold size for a small"); |
| UsageError(" method for compiler filter tuning."); |
| UsageError(" Example: --small-method-max=%d", CompilerOptions::kDefaultSmallMethodThreshold); |
| UsageError(" Default: %d", CompilerOptions::kDefaultSmallMethodThreshold); |
| UsageError(""); |
| UsageError(" --tiny-method-max=<method-instruction-count>: threshold size for a tiny"); |
| UsageError(" method for compiler filter tuning."); |
| UsageError(" Example: --tiny-method-max=%d", CompilerOptions::kDefaultTinyMethodThreshold); |
| UsageError(" Default: %d", CompilerOptions::kDefaultTinyMethodThreshold); |
| UsageError(""); |
| UsageError(" --num-dex-methods=<method-count>: threshold size for a small dex file for"); |
| UsageError(" compiler filter tuning. If the input has fewer than this many methods"); |
| UsageError(" and the filter is not interpret-only or verify-none or verify-at-runtime, "); |
| UsageError(" overrides the filter to use speed"); |
| UsageError(" Example: --num-dex-method=%d", CompilerOptions::kDefaultNumDexMethodsThreshold); |
| UsageError(" Default: %d", CompilerOptions::kDefaultNumDexMethodsThreshold); |
| UsageError(""); |
| UsageError(" --inline-max-code-units=<code-units-count>: the maximum code units that a method"); |
| UsageError(" can have to be considered for inlining. A zero value will disable inlining."); |
| UsageError(" Honored only by Optimizing. Has priority over the --compiler-filter option."); |
| UsageError(" Intended for development/experimental use."); |
| UsageError(" Example: --inline-max-code-units=%d", |
| CompilerOptions::kDefaultInlineMaxCodeUnits); |
| UsageError(" Default: %d", CompilerOptions::kDefaultInlineMaxCodeUnits); |
| UsageError(""); |
| UsageError(" --dump-timing: display a breakdown of where time was spent"); |
| UsageError(""); |
| UsageError(" -g"); |
| UsageError(" --generate-debug-info: Generate debug information for native debugging,"); |
| UsageError(" such as stack unwinding information, ELF symbols and DWARF sections."); |
| UsageError(" If used without --debuggable, it will be best-effort only."); |
| UsageError(" This option does not affect the generated code. (disabled by default)"); |
| UsageError(""); |
| UsageError(" --no-generate-debug-info: Do not generate debug information for native debugging."); |
| UsageError(""); |
| UsageError(" --generate-mini-debug-info: Generate minimal amount of LZMA-compressed"); |
| UsageError(" debug information necessary to print backtraces. (disabled by default)"); |
| UsageError(""); |
| UsageError(" --no-generate-mini-debug-info: Do not generate backtrace info."); |
| UsageError(""); |
| UsageError(" --generate-build-id: Generate GNU-compatible linker build ID ELF section with"); |
| UsageError(" SHA-1 of the file content (and thus stable across identical builds)"); |
| UsageError(""); |
| UsageError(" --no-generate-build-id: Do not generate the build ID ELF section."); |
| UsageError(""); |
| UsageError(" --debuggable: Produce code debuggable with Java debugger."); |
| UsageError(""); |
| UsageError(" --avoid-storing-invocation: Avoid storing the invocation args in the key value"); |
| UsageError(" store. Used to test determinism with different args."); |
| UsageError(""); |
| UsageError(" --runtime-arg <argument>: used to specify various arguments for the runtime,"); |
| UsageError(" such as initial heap size, maximum heap size, and verbose output."); |
| UsageError(" Use a separate --runtime-arg switch for each argument."); |
| UsageError(" Example: --runtime-arg -Xms256m"); |
| UsageError(""); |
| UsageError(" --profile-file=<filename>: specify profiler output file to use for compilation."); |
| UsageError(""); |
| UsageError(" --profile-file-fd=<number>: same as --profile-file but accepts a file descriptor."); |
| UsageError(" Cannot be used together with --profile-file."); |
| UsageError(""); |
| UsageError(" --swap-file=<file-name>: specifies a file to use for swap."); |
| UsageError(" Example: --swap-file=/data/tmp/swap.001"); |
| UsageError(""); |
| UsageError(" --swap-fd=<file-descriptor>: specifies a file to use for swap (by descriptor)."); |
| UsageError(" Example: --swap-fd=10"); |
| UsageError(""); |
| UsageError(" --swap-dex-size-threshold=<size>: specifies the minimum total dex file size in"); |
| UsageError(" bytes to allow the use of swap."); |
| UsageError(" Example: --swap-dex-size-threshold=1000000"); |
| UsageError(" Default: %zu", kDefaultMinDexFileCumulativeSizeForSwap); |
| UsageError(""); |
| UsageError(" --swap-dex-count-threshold=<count>: specifies the minimum number of dex files to"); |
| UsageError(" allow the use of swap."); |
| UsageError(" Example: --swap-dex-count-threshold=10"); |
| UsageError(" Default: %zu", kDefaultMinDexFilesForSwap); |
| UsageError(""); |
| UsageError(" --very-large-app-threshold=<size>: specifies the minimum total dex file size in"); |
| UsageError(" bytes to consider the input \"very large\" and reduce compilation done."); |
| UsageError(" Example: --very-large-app-threshold=100000000"); |
| UsageError(""); |
| UsageError(" --app-image-fd=<file-descriptor>: specify output file descriptor for app image."); |
| UsageError(" Example: --app-image-fd=10"); |
| UsageError(""); |
| UsageError(" --app-image-file=<file-name>: specify a file name for app image."); |
| UsageError(" Example: --app-image-file=/data/dalvik-cache/system@app@Calculator.apk.art"); |
| UsageError(""); |
| UsageError(" --multi-image: specify that separate oat and image files be generated for each " |
| "input dex file."); |
| UsageError(""); |
| UsageError(" --force-determinism: force the compiler to emit a deterministic output."); |
| UsageError(""); |
| UsageError(" --dump-cfg=<cfg-file>: dump control-flow graphs (CFGs) to specified file."); |
| UsageError(" Example: --dump-cfg=output.cfg"); |
| UsageError(""); |
| UsageError(" --dump-cfg-append: when dumping CFGs to an existing file, append new CFG data to"); |
| UsageError(" existing data (instead of overwriting existing data with new data, which is"); |
| UsageError(" the default behavior). This option is only meaningful when used with"); |
| UsageError(" --dump-cfg."); |
| UsageError(""); |
| UsageError(" --classpath-dir=<directory-path>: directory used to resolve relative class paths."); |
| UsageError(""); |
| UsageError(" --class-loader-context=<string spec>: a string specifying the intended"); |
| UsageError(" runtime loading context for the compiled dex files."); |
| UsageError(""); |
| UsageError(" It describes how the class loader chain should be built in order to ensure"); |
| UsageError(" classes are resolved during dex2aot as they would be resolved at runtime."); |
| UsageError(" This spec will be encoded in the oat file. If at runtime the dex file is"); |
| UsageError(" loaded in a different context, the oat file will be rejected."); |
| UsageError(""); |
| UsageError(" The chain is interpreted in the natural 'parent order', meaning that class"); |
| UsageError(" loader 'i+1' will be the parent of class loader 'i'."); |
| UsageError(" The compilation sources will be appended to the classpath of the first class"); |
| UsageError(" loader."); |
| UsageError(""); |
| UsageError(" E.g. if the context is 'PCL[lib1.dex];DLC[lib2.dex]' and "); |
| UsageError(" --dex-file=src.dex then dex2oat will setup a PathClassLoader with classpath "); |
| UsageError(" 'lib1.dex:src.dex' and set its parent to a DelegateLastClassLoader with "); |
| UsageError(" classpath 'lib2.dex'."); |
| UsageError(" "); |
| UsageError(" Note that the compiler will be tolerant if the source dex files specified"); |
| UsageError(" with --dex-file are found in the classpath. The source dex files will be"); |
| UsageError(" removed from any class loader's classpath possibly resulting in empty"); |
| UsageError(" class loaders."); |
| UsageError(""); |
| UsageError(" Example: --class-loader-context=PCL[lib1.dex:lib2.dex];DLC[lib3.dex]"); |
| UsageError(""); |
| UsageError(" --dirty-image-objects=<directory-path>: list of known dirty objects in the image."); |
| UsageError(" The image writer will group them together."); |
| UsageError(""); |
| UsageError(" --compact-dex-level=none|fast: None avoids generating compact dex, fast"); |
| UsageError(" generates compact dex with low compile time."); |
| UsageError(""); |
| std::cerr << "See log for usage error information\n"; |
| exit(EXIT_FAILURE); |
| } |
| |
| // The primary goal of the watchdog is to prevent stuck build servers |
| // during development when fatal aborts lead to a cascade of failures |
| // that result in a deadlock. |
| class WatchDog { |
| // WatchDog defines its own CHECK_PTHREAD_CALL to avoid using LOG which uses locks |
| #undef CHECK_PTHREAD_CALL |
| #define CHECK_WATCH_DOG_PTHREAD_CALL(call, args, what) \ |
| do { \ |
| int rc = call args; \ |
| if (rc != 0) { \ |
| errno = rc; \ |
| std::string message(# call); \ |
| message += " failed for "; \ |
| message += reason; \ |
| Fatal(message); \ |
| } \ |
| } while (false) |
| |
| public: |
| explicit WatchDog(int64_t timeout_in_milliseconds) |
| : timeout_in_milliseconds_(timeout_in_milliseconds), |
| shutting_down_(false) { |
| const char* reason = "dex2oat watch dog thread startup"; |
| CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_init, (&mutex_, nullptr), reason); |
| #ifndef __APPLE__ |
| pthread_condattr_t condattr; |
| CHECK_WATCH_DOG_PTHREAD_CALL(pthread_condattr_init, (&condattr), reason); |
| CHECK_WATCH_DOG_PTHREAD_CALL(pthread_condattr_setclock, (&condattr, CLOCK_MONOTONIC), reason); |
| CHECK_WATCH_DOG_PTHREAD_CALL(pthread_cond_init, (&cond_, &condattr), reason); |
| CHECK_WATCH_DOG_PTHREAD_CALL(pthread_condattr_destroy, (&condattr), reason); |
| #endif |
| CHECK_WATCH_DOG_PTHREAD_CALL(pthread_attr_init, (&attr_), reason); |
| CHECK_WATCH_DOG_PTHREAD_CALL(pthread_create, (&pthread_, &attr_, &CallBack, this), reason); |
| CHECK_WATCH_DOG_PTHREAD_CALL(pthread_attr_destroy, (&attr_), reason); |
| } |
| ~WatchDog() { |
| const char* reason = "dex2oat watch dog thread shutdown"; |
| CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_lock, (&mutex_), reason); |
| shutting_down_ = true; |
| CHECK_WATCH_DOG_PTHREAD_CALL(pthread_cond_signal, (&cond_), reason); |
| CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_unlock, (&mutex_), reason); |
| |
| CHECK_WATCH_DOG_PTHREAD_CALL(pthread_join, (pthread_, nullptr), reason); |
| |
| CHECK_WATCH_DOG_PTHREAD_CALL(pthread_cond_destroy, (&cond_), reason); |
| CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_destroy, (&mutex_), reason); |
| } |
| |
| // TODO: tune the multiplier for GC verification, the following is just to make the timeout |
| // large. |
| static constexpr int64_t kWatchdogVerifyMultiplier = |
| kVerifyObjectSupport > kVerifyObjectModeFast ? 100 : 1; |
| |
| // When setting timeouts, keep in mind that the build server may not be as fast as your |
| // desktop. Debug builds are slower so they have larger timeouts. |
| static constexpr int64_t kWatchdogSlowdownFactor = kIsDebugBuild ? 5U : 1U; |
| |
| // 9.5 minutes scaled by kSlowdownFactor. This is slightly smaller than the Package Manager |
| // watchdog (PackageManagerService.WATCHDOG_TIMEOUT, 10 minutes), so that dex2oat will abort |
| // itself before that watchdog would take down the system server. |
| static constexpr int64_t kWatchDogTimeoutSeconds = kWatchdogSlowdownFactor * (9 * 60 + 30); |
| |
| static constexpr int64_t kDefaultWatchdogTimeoutInMS = |
| kWatchdogVerifyMultiplier * kWatchDogTimeoutSeconds * 1000; |
| |
| private: |
| static void* CallBack(void* arg) { |
| WatchDog* self = reinterpret_cast<WatchDog*>(arg); |
| ::art::SetThreadName("dex2oat watch dog"); |
| self->Wait(); |
| return nullptr; |
| } |
| |
| NO_RETURN static void Fatal(const std::string& message) { |
| // TODO: When we can guarantee it won't prevent shutdown in error cases, move to LOG. However, |
| // it's rather easy to hang in unwinding. |
| // LogLine also avoids ART logging lock issues, as it's really only a wrapper around |
| // logcat logging or stderr output. |
| android::base::LogMessage::LogLine(__FILE__, |
| __LINE__, |
| android::base::LogId::DEFAULT, |
| LogSeverity::FATAL, |
| message.c_str()); |
| // If we're on the host, try to dump all threads to get a sense of what's going on. This is |
| // restricted to the host as the dump may itself go bad. |
| // TODO: Use a double watchdog timeout, so we can enable this on-device. |
| if (!kIsTargetBuild && Runtime::Current() != nullptr) { |
| Runtime::Current()->AttachCurrentThread("Watchdog thread attached for dumping", |
| true, |
| nullptr, |
| false); |
| Runtime::Current()->DumpForSigQuit(std::cerr); |
| } |
| exit(1); |
| } |
| |
| void Wait() { |
| timespec timeout_ts; |
| #if defined(__APPLE__) |
| InitTimeSpec(true, CLOCK_REALTIME, timeout_in_milliseconds_, 0, &timeout_ts); |
| #else |
| InitTimeSpec(true, CLOCK_MONOTONIC, timeout_in_milliseconds_, 0, &timeout_ts); |
| #endif |
| const char* reason = "dex2oat watch dog thread waiting"; |
| CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_lock, (&mutex_), reason); |
| while (!shutting_down_) { |
| int rc = TEMP_FAILURE_RETRY(pthread_cond_timedwait(&cond_, &mutex_, &timeout_ts)); |
| if (rc == ETIMEDOUT) { |
| Fatal(StringPrintf("dex2oat did not finish after %" PRId64 " seconds", |
| timeout_in_milliseconds_/1000)); |
| } else if (rc != 0) { |
| std::string message(StringPrintf("pthread_cond_timedwait failed: %s", |
| strerror(errno))); |
| Fatal(message.c_str()); |
| } |
| } |
| CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_unlock, (&mutex_), reason); |
| } |
| |
| // TODO: Switch to Mutex when we can guarantee it won't prevent shutdown in error cases. |
| pthread_mutex_t mutex_; |
| pthread_cond_t cond_; |
| pthread_attr_t attr_; |
| pthread_t pthread_; |
| |
| const int64_t timeout_in_milliseconds_; |
| bool shutting_down_; |
| }; |
| |
| class Dex2Oat FINAL { |
| public: |
| explicit Dex2Oat(TimingLogger* timings) : |
| compiler_kind_(Compiler::kOptimizing), |
| instruction_set_(kRuntimeISA == InstructionSet::kArm ? InstructionSet::kThumb2 : kRuntimeISA), |
| // Take the default set of instruction features from the build. |
| image_file_location_oat_checksum_(0), |
| image_file_location_oat_data_begin_(0), |
| image_patch_delta_(0), |
| key_value_store_(nullptr), |
| verification_results_(nullptr), |
| runtime_(nullptr), |
| thread_count_(sysconf(_SC_NPROCESSORS_CONF)), |
| start_ns_(NanoTime()), |
| start_cputime_ns_(ProcessCpuNanoTime()), |
| oat_fd_(-1), |
| input_vdex_fd_(-1), |
| output_vdex_fd_(-1), |
| input_vdex_file_(nullptr), |
| zip_fd_(-1), |
| image_base_(0U), |
| image_classes_zip_filename_(nullptr), |
| image_classes_filename_(nullptr), |
| image_storage_mode_(ImageHeader::kStorageModeUncompressed), |
| compiled_classes_zip_filename_(nullptr), |
| compiled_classes_filename_(nullptr), |
| compiled_methods_zip_filename_(nullptr), |
| compiled_methods_filename_(nullptr), |
| passes_to_run_filename_(nullptr), |
| dirty_image_objects_filename_(nullptr), |
| multi_image_(false), |
| is_host_(false), |
| elf_writers_(), |
| oat_writers_(), |
| rodata_(), |
| image_writer_(nullptr), |
| driver_(nullptr), |
| opened_dex_files_maps_(), |
| opened_dex_files_(), |
| no_inline_from_dex_files_(), |
| dump_stats_(false), |
| dump_passes_(false), |
| dump_timing_(false), |
| dump_slow_timing_(kIsDebugBuild), |
| avoid_storing_invocation_(false), |
| swap_fd_(kInvalidFd), |
| app_image_fd_(kInvalidFd), |
| profile_file_fd_(kInvalidFd), |
| timings_(timings), |
| force_determinism_(false) |
| {} |
| |
| ~Dex2Oat() { |
| // Log completion time before deleting the runtime_, because this accesses |
| // the runtime. |
| LogCompletionTime(); |
| |
| if (!kIsDebugBuild && !(RUNNING_ON_MEMORY_TOOL && kMemoryToolDetectsLeaks)) { |
| // We want to just exit on non-debug builds, not bringing the runtime down |
| // in an orderly fashion. So release the following fields. |
| driver_.release(); |
| image_writer_.release(); |
| for (std::unique_ptr<const DexFile>& dex_file : opened_dex_files_) { |
| dex_file.release(); |
| } |
| for (std::unique_ptr<MemMap>& map : opened_dex_files_maps_) { |
| map.release(); |
| } |
| for (std::unique_ptr<File>& vdex_file : vdex_files_) { |
| vdex_file.release(); |
| } |
| for (std::unique_ptr<File>& oat_file : oat_files_) { |
| oat_file.release(); |
| } |
| runtime_.release(); |
| verification_results_.release(); |
| key_value_store_.release(); |
| } |
| } |
| |
| struct ParserOptions { |
| std::vector<const char*> oat_symbols; |
| std::string boot_image_filename; |
| int64_t watch_dog_timeout_in_ms = -1; |
| bool watch_dog_enabled = true; |
| bool requested_specific_compiler = false; |
| std::string error_msg; |
| }; |
| |
| void ParseBase(const std::string& option) { |
| char* end; |
| image_base_ = strtoul(option.c_str(), &end, 16); |
| if (end == option.c_str() || *end != '\0') { |
| Usage("Failed to parse hexadecimal value for option %s", option.data()); |
| } |
| } |
| |
| bool VerifyProfileData() { |
| return profile_compilation_info_->VerifyProfileData(dex_files_); |
| } |
| |
| void ParseInstructionSetVariant(const std::string& option, ParserOptions* parser_options) { |
| instruction_set_features_ = InstructionSetFeatures::FromVariant( |
| instruction_set_, option, &parser_options->error_msg); |
| if (instruction_set_features_.get() == nullptr) { |
| Usage("%s", parser_options->error_msg.c_str()); |
| } |
| } |
| |
| void ParseInstructionSetFeatures(const std::string& option, ParserOptions* parser_options) { |
| if (instruction_set_features_ == nullptr) { |
| instruction_set_features_ = InstructionSetFeatures::FromVariant( |
| instruction_set_, "default", &parser_options->error_msg); |
| if (instruction_set_features_.get() == nullptr) { |
| Usage("Problem initializing default instruction set features variant: %s", |
| parser_options->error_msg.c_str()); |
| } |
| } |
| instruction_set_features_ = |
| instruction_set_features_->AddFeaturesFromString(option, &parser_options->error_msg); |
| if (instruction_set_features_ == nullptr) { |
| Usage("Error parsing '%s': %s", option.c_str(), parser_options->error_msg.c_str()); |
| } |
| } |
| |
| void ProcessOptions(ParserOptions* parser_options) { |
| compiler_options_->boot_image_ = !image_filenames_.empty(); |
| compiler_options_->app_image_ = app_image_fd_ != -1 || !app_image_file_name_.empty(); |
| |
| if (IsBootImage() && image_filenames_.size() == 1) { |
| const std::string& boot_image_filename = image_filenames_[0]; |
| compiler_options_->core_image_ = CompilerDriver::IsCoreImageFilename(boot_image_filename); |
| } |
| |
| if (IsAppImage() && IsBootImage()) { |
| Usage("Can't have both --image and (--app-image-fd or --app-image-file)"); |
| } |
| |
| if (oat_filenames_.empty() && oat_fd_ == -1) { |
| Usage("Output must be supplied with either --oat-file or --oat-fd"); |
| } |
| |
| if (input_vdex_fd_ != -1 && !input_vdex_.empty()) { |
| Usage("Can't have both --input-vdex-fd and --input-vdex"); |
| } |
| |
| if (output_vdex_fd_ != -1 && !output_vdex_.empty()) { |
| Usage("Can't have both --output-vdex-fd and --output-vdex"); |
| } |
| |
| if (!oat_filenames_.empty() && oat_fd_ != -1) { |
| Usage("--oat-file should not be used with --oat-fd"); |
| } |
| |
| if ((output_vdex_fd_ == -1) != (oat_fd_ == -1)) { |
| Usage("VDEX and OAT output must be specified either with one --oat-filename " |
| "or with --oat-fd and --output-vdex-fd file descriptors"); |
| } |
| |
| if (!parser_options->oat_symbols.empty() && oat_fd_ != -1) { |
| Usage("--oat-symbols should not be used with --oat-fd"); |
| } |
| |
| if (!parser_options->oat_symbols.empty() && is_host_) { |
| Usage("--oat-symbols should not be used with --host"); |
| } |
| |
| if (output_vdex_fd_ != -1 && !image_filenames_.empty()) { |
| Usage("--output-vdex-fd should not be used with --image"); |
| } |
| |
| if (oat_fd_ != -1 && !image_filenames_.empty()) { |
| Usage("--oat-fd should not be used with --image"); |
| } |
| |
| if (!parser_options->oat_symbols.empty() && |
| parser_options->oat_symbols.size() != oat_filenames_.size()) { |
| Usage("--oat-file arguments do not match --oat-symbols arguments"); |
| } |
| |
| if (!image_filenames_.empty() && image_filenames_.size() != oat_filenames_.size()) { |
| Usage("--oat-file arguments do not match --image arguments"); |
| } |
| |
| if (android_root_.empty()) { |
| const char* android_root_env_var = getenv("ANDROID_ROOT"); |
| if (android_root_env_var == nullptr) { |
| Usage("--android-root unspecified and ANDROID_ROOT not set"); |
| } |
| android_root_ += android_root_env_var; |
| } |
| |
| if (!IsBootImage() && parser_options->boot_image_filename.empty()) { |
| parser_options->boot_image_filename += android_root_; |
| parser_options->boot_image_filename += "/framework/boot.art"; |
| } |
| if (!parser_options->boot_image_filename.empty()) { |
| boot_image_filename_ = parser_options->boot_image_filename; |
| } |
| |
| if (image_classes_filename_ != nullptr && !IsBootImage()) { |
| Usage("--image-classes should only be used with --image"); |
| } |
| |
| if (image_classes_filename_ != nullptr && !boot_image_filename_.empty()) { |
| Usage("--image-classes should not be used with --boot-image"); |
| } |
| |
| if (image_classes_zip_filename_ != nullptr && image_classes_filename_ == nullptr) { |
| Usage("--image-classes-zip should be used with --image-classes"); |
| } |
| |
| if (compiled_classes_filename_ != nullptr && !IsBootImage()) { |
| Usage("--compiled-classes should only be used with --image"); |
| } |
| |
| if (compiled_classes_filename_ != nullptr && !boot_image_filename_.empty()) { |
| Usage("--compiled-classes should not be used with --boot-image"); |
| } |
| |
| if (compiled_classes_zip_filename_ != nullptr && compiled_classes_filename_ == nullptr) { |
| Usage("--compiled-classes-zip should be used with --compiled-classes"); |
| } |
| |
| if (dex_filenames_.empty() && zip_fd_ == -1) { |
| Usage("Input must be supplied with either --dex-file or --zip-fd"); |
| } |
| |
| if (!dex_filenames_.empty() && zip_fd_ != -1) { |
| Usage("--dex-file should not be used with --zip-fd"); |
| } |
| |
| if (!dex_filenames_.empty() && !zip_location_.empty()) { |
| Usage("--dex-file should not be used with --zip-location"); |
| } |
| |
| if (dex_locations_.empty()) { |
| for (const char* dex_file_name : dex_filenames_) { |
| dex_locations_.push_back(dex_file_name); |
| } |
| } else if (dex_locations_.size() != dex_filenames_.size()) { |
| Usage("--dex-location arguments do not match --dex-file arguments"); |
| } |
| |
| if (!dex_filenames_.empty() && !oat_filenames_.empty()) { |
| if (oat_filenames_.size() != 1 && oat_filenames_.size() != dex_filenames_.size()) { |
| Usage("--oat-file arguments must be singular or match --dex-file arguments"); |
| } |
| } |
| |
| if (zip_fd_ != -1 && zip_location_.empty()) { |
| Usage("--zip-location should be supplied with --zip-fd"); |
| } |
| |
| if (boot_image_filename_.empty()) { |
| if (image_base_ == 0) { |
| Usage("Non-zero --base not specified"); |
| } |
| } |
| |
| const bool have_profile_file = !profile_file_.empty(); |
| const bool have_profile_fd = profile_file_fd_ != kInvalidFd; |
| if (have_profile_file && have_profile_fd) { |
| Usage("Profile file should not be specified with both --profile-file-fd and --profile-file"); |
| } |
| |
| if (have_profile_file || have_profile_fd) { |
| if (compiled_classes_filename_ != nullptr || |
| compiled_classes_zip_filename_ != nullptr || |
| image_classes_filename_ != nullptr || |
| image_classes_zip_filename_ != nullptr) { |
| Usage("Profile based image creation is not supported with image or compiled classes"); |
| } |
| } |
| |
| if (!parser_options->oat_symbols.empty()) { |
| oat_unstripped_ = std::move(parser_options->oat_symbols); |
| } |
| |
| // If no instruction set feature was given, use the default one for the target |
| // instruction set. |
| if (instruction_set_features_.get() == nullptr) { |
| instruction_set_features_ = InstructionSetFeatures::FromVariant( |
| instruction_set_, "default", &parser_options->error_msg); |
| if (instruction_set_features_.get() == nullptr) { |
| Usage("Problem initializing default instruction set features variant: %s", |
| parser_options->error_msg.c_str()); |
| } |
| } |
| |
| if (instruction_set_ == kRuntimeISA) { |
| std::unique_ptr<const InstructionSetFeatures> runtime_features( |
| InstructionSetFeatures::FromCppDefines()); |
| if (!instruction_set_features_->Equals(runtime_features.get())) { |
| LOG(WARNING) << "Mismatch between dex2oat instruction set features (" |
| << *instruction_set_features_ << ") and those of dex2oat executable (" |
| << *runtime_features <<") for the command line:\n" |
| << CommandLine(); |
| } |
| } |
| |
| if (compiler_options_->inline_max_code_units_ == CompilerOptions::kUnsetInlineMaxCodeUnits) { |
| compiler_options_->inline_max_code_units_ = CompilerOptions::kDefaultInlineMaxCodeUnits; |
| } |
| |
| // Checks are all explicit until we know the architecture. |
| // Set the compilation target's implicit checks options. |
| switch (instruction_set_) { |
| case InstructionSet::kArm: |
| case InstructionSet::kThumb2: |
| case InstructionSet::kArm64: |
| case InstructionSet::kX86: |
| case InstructionSet::kX86_64: |
| case InstructionSet::kMips: |
| case InstructionSet::kMips64: |
| compiler_options_->implicit_null_checks_ = true; |
| compiler_options_->implicit_so_checks_ = true; |
| break; |
| |
| default: |
| // Defaults are correct. |
| break; |
| } |
| |
| if (!IsBootImage() && multi_image_) { |
| Usage("--multi-image can only be used when creating boot images"); |
| } |
| if (IsBootImage() && multi_image_ && image_filenames_.size() > 1) { |
| Usage("--multi-image cannot be used with multiple image names"); |
| } |
| |
| // For now, if we're on the host and compile the boot image, *always* use multiple image files. |
| if (!kIsTargetBuild && IsBootImage()) { |
| if (image_filenames_.size() == 1) { |
| multi_image_ = true; |
| } |
| } |
| |
| // Done with usage checks, enable watchdog if requested |
| if (parser_options->watch_dog_enabled) { |
| int64_t timeout = parser_options->watch_dog_timeout_in_ms > 0 |
| ? parser_options->watch_dog_timeout_in_ms |
| : WatchDog::kDefaultWatchdogTimeoutInMS; |
| watchdog_.reset(new WatchDog(timeout)); |
| } |
| |
| // Fill some values into the key-value store for the oat header. |
| key_value_store_.reset(new SafeMap<std::string, std::string>()); |
| |
| // Automatically force determinism for the boot image in a host build if read barriers |
| // are enabled, or if the default GC is CMS or MS. When the default GC is CMS |
| // (Concurrent Mark-Sweep), the GC is switched to a non-concurrent one by passing the |
| // option `-Xgc:nonconcurrent` (see below). |
| if (!kIsTargetBuild && IsBootImage()) { |
| if (SupportsDeterministicCompilation()) { |
| force_determinism_ = true; |
| } else { |
| LOG(WARNING) << "Deterministic compilation is disabled."; |
| } |
| } |
| compiler_options_->force_determinism_ = force_determinism_; |
| |
| if (passes_to_run_filename_ != nullptr) { |
| passes_to_run_.reset(ReadCommentedInputFromFile<std::vector<std::string>>( |
| passes_to_run_filename_, |
| nullptr)); // No post-processing. |
| if (passes_to_run_.get() == nullptr) { |
| Usage("Failed to read list of passes to run."); |
| } |
| } |
| compiler_options_->passes_to_run_ = passes_to_run_.get(); |
| } |
| |
| static bool SupportsDeterministicCompilation() { |
| return (kUseReadBarrier || |
| gc::kCollectorTypeDefault == gc::kCollectorTypeCMS || |
| gc::kCollectorTypeDefault == gc::kCollectorTypeMS); |
| } |
| |
| void ExpandOatAndImageFilenames() { |
| std::string base_oat = oat_filenames_[0]; |
| size_t last_oat_slash = base_oat.rfind('/'); |
| if (last_oat_slash == std::string::npos) { |
| Usage("--multi-image used with unusable oat filename %s", base_oat.c_str()); |
| } |
| // We also need to honor path components that were encoded through '@'. Otherwise the loading |
| // code won't be able to find the images. |
| if (base_oat.find('@', last_oat_slash) != std::string::npos) { |
| last_oat_slash = base_oat.rfind('@'); |
| } |
| base_oat = base_oat.substr(0, last_oat_slash + 1); |
| |
| std::string base_img = image_filenames_[0]; |
| size_t last_img_slash = base_img.rfind('/'); |
| if (last_img_slash == std::string::npos) { |
| Usage("--multi-image used with unusable image filename %s", base_img.c_str()); |
| } |
| // We also need to honor path components that were encoded through '@'. Otherwise the loading |
| // code won't be able to find the images. |
| if (base_img.find('@', last_img_slash) != std::string::npos) { |
| last_img_slash = base_img.rfind('@'); |
| } |
| |
| // Get the prefix, which is the primary image name (without path components). Strip the |
| // extension. |
| std::string prefix = base_img.substr(last_img_slash + 1); |
| if (prefix.rfind('.') != std::string::npos) { |
| prefix = prefix.substr(0, prefix.rfind('.')); |
| } |
| if (!prefix.empty()) { |
| prefix = prefix + "-"; |
| } |
| |
| base_img = base_img.substr(0, last_img_slash + 1); |
| |
| // Note: we have some special case here for our testing. We have to inject the differentiating |
| // parts for the different core images. |
| std::string infix; // Empty infix by default. |
| { |
| // Check the first name. |
| std::string dex_file = oat_filenames_[0]; |
| size_t last_dex_slash = dex_file.rfind('/'); |
| if (last_dex_slash != std::string::npos) { |
| dex_file = dex_file.substr(last_dex_slash + 1); |
| } |
| size_t last_dex_dot = dex_file.rfind('.'); |
| if (last_dex_dot != std::string::npos) { |
| dex_file = dex_file.substr(0, last_dex_dot); |
| } |
| if (android::base::StartsWith(dex_file, "core-")) { |
| infix = dex_file.substr(strlen("core")); |
| } |
| } |
| |
| std::string base_symbol_oat; |
| if (!oat_unstripped_.empty()) { |
| base_symbol_oat = oat_unstripped_[0]; |
| size_t last_symbol_oat_slash = base_symbol_oat.rfind('/'); |
| if (last_symbol_oat_slash == std::string::npos) { |
| Usage("--multi-image used with unusable symbol filename %s", base_symbol_oat.c_str()); |
| } |
| base_symbol_oat = base_symbol_oat.substr(0, last_symbol_oat_slash + 1); |
| } |
| |
| // Now create the other names. Use a counted loop to skip the first one. |
| for (size_t i = 1; i < dex_locations_.size(); ++i) { |
| // TODO: Make everything properly std::string. |
| std::string image_name = CreateMultiImageName(dex_locations_[i], prefix, infix, ".art"); |
| char_backing_storage_.push_front(base_img + image_name); |
| image_filenames_.push_back(char_backing_storage_.front().c_str()); |
| |
| std::string oat_name = CreateMultiImageName(dex_locations_[i], prefix, infix, ".oat"); |
| char_backing_storage_.push_front(base_oat + oat_name); |
| oat_filenames_.push_back(char_backing_storage_.front().c_str()); |
| |
| if (!base_symbol_oat.empty()) { |
| char_backing_storage_.push_front(base_symbol_oat + oat_name); |
| oat_unstripped_.push_back(char_backing_storage_.front().c_str()); |
| } |
| } |
| } |
| |
| // Modify the input string in the following way: |
| // 0) Assume input is /a/b/c.d |
| // 1) Strip the path -> c.d |
| // 2) Inject prefix p -> pc.d |
| // 3) Inject infix i -> pci.d |
| // 4) Replace suffix with s if it's "jar" -> d == "jar" -> pci.s |
| static std::string CreateMultiImageName(std::string in, |
| const std::string& prefix, |
| const std::string& infix, |
| const char* replace_suffix) { |
| size_t last_dex_slash = in.rfind('/'); |
| if (last_dex_slash != std::string::npos) { |
| in = in.substr(last_dex_slash + 1); |
| } |
| if (!prefix.empty()) { |
| in = prefix + in; |
| } |
| if (!infix.empty()) { |
| // Inject infix. |
| size_t last_dot = in.rfind('.'); |
| if (last_dot != std::string::npos) { |
| in.insert(last_dot, infix); |
| } |
| } |
| if (android::base::EndsWith(in, ".jar")) { |
| in = in.substr(0, in.length() - strlen(".jar")) + |
| (replace_suffix != nullptr ? replace_suffix : ""); |
| } |
| return in; |
| } |
| |
| void InsertCompileOptions(int argc, char** argv) { |
| std::ostringstream oss; |
| if (!avoid_storing_invocation_) { |
| for (int i = 0; i < argc; ++i) { |
| if (i > 0) { |
| oss << ' '; |
| } |
| oss << argv[i]; |
| } |
| key_value_store_->Put(OatHeader::kDex2OatCmdLineKey, oss.str()); |
| oss.str(""); // Reset. |
| } |
| oss << kRuntimeISA; |
| key_value_store_->Put(OatHeader::kDex2OatHostKey, oss.str()); |
| key_value_store_->Put( |
| OatHeader::kPicKey, |
| compiler_options_->compile_pic_ ? OatHeader::kTrueValue : OatHeader::kFalseValue); |
| key_value_store_->Put( |
| OatHeader::kDebuggableKey, |
| compiler_options_->debuggable_ ? OatHeader::kTrueValue : OatHeader::kFalseValue); |
| key_value_store_->Put( |
| OatHeader::kNativeDebuggableKey, |
| compiler_options_->GetNativeDebuggable() ? OatHeader::kTrueValue : OatHeader::kFalseValue); |
| key_value_store_->Put(OatHeader::kCompilerFilter, |
| CompilerFilter::NameOfFilter(compiler_options_->GetCompilerFilter())); |
| key_value_store_->Put(OatHeader::kConcurrentCopying, |
| kUseReadBarrier ? OatHeader::kTrueValue : OatHeader::kFalseValue); |
| } |
| |
| // This simple forward is here so the string specializations below don't look out of place. |
| template <typename T, typename U> |
| void AssignIfExists(Dex2oatArgumentMap& map, |
| const Dex2oatArgumentMap::Key<T>& key, |
| U* out) { |
| map.AssignIfExists(key, out); |
| } |
| |
| // Specializations to handle const char* vs std::string. |
| void AssignIfExists(Dex2oatArgumentMap& map, |
| const Dex2oatArgumentMap::Key<std::string>& key, |
| const char** out) { |
| if (map.Exists(key)) { |
| char_backing_storage_.push_front(std::move(*map.Get(key))); |
| *out = char_backing_storage_.front().c_str(); |
| } |
| } |
| void AssignIfExists(Dex2oatArgumentMap& map, |
| const Dex2oatArgumentMap::Key<std::vector<std::string>>& key, |
| std::vector<const char*>* out) { |
| if (map.Exists(key)) { |
| for (auto& val : *map.Get(key)) { |
| char_backing_storage_.push_front(std::move(val)); |
| out->push_back(char_backing_storage_.front().c_str()); |
| } |
| } |
| } |
| |
| template <typename T> |
| void AssignTrueIfExists(Dex2oatArgumentMap& map, |
| const Dex2oatArgumentMap::Key<T>& key, |
| bool* out) { |
| if (map.Exists(key)) { |
| *out = true; |
| } |
| } |
| |
| // Parse the arguments from the command line. In case of an unrecognized option or impossible |
| // values/combinations, a usage error will be displayed and exit() is called. Thus, if the method |
| // returns, arguments have been successfully parsed. |
| void ParseArgs(int argc, char** argv) { |
| original_argc = argc; |
| original_argv = argv; |
| |
| InitLogging(argv, Runtime::Abort); |
| |
| compiler_options_.reset(new CompilerOptions()); |
| |
| using M = Dex2oatArgumentMap; |
| std::string error_msg; |
| std::unique_ptr<M> args_uptr = M::Parse(argc, const_cast<const char**>(argv), &error_msg); |
| if (args_uptr == nullptr) { |
| Usage("Failed to parse command line: %s", error_msg.c_str()); |
| UNREACHABLE(); |
| } |
| |
| M& args = *args_uptr; |
| |
| std::unique_ptr<ParserOptions> parser_options(new ParserOptions()); |
| |
| AssignIfExists(args, M::CompactDexLevel, &compact_dex_level_); |
| AssignIfExists(args, M::DexFiles, &dex_filenames_); |
| AssignIfExists(args, M::DexLocations, &dex_locations_); |
| AssignIfExists(args, M::OatFiles, &oat_filenames_); |
| AssignIfExists(args, M::OatSymbols, &parser_options->oat_symbols); |
| AssignIfExists(args, M::ImageFilenames, &image_filenames_); |
| AssignIfExists(args, M::ZipFd, &zip_fd_); |
| AssignIfExists(args, M::ZipLocation, &zip_location_); |
| AssignIfExists(args, M::InputVdexFd, &input_vdex_fd_); |
| AssignIfExists(args, M::OutputVdexFd, &output_vdex_fd_); |
| AssignIfExists(args, M::InputVdex, &input_vdex_); |
| AssignIfExists(args, M::OutputVdex, &output_vdex_); |
| AssignIfExists(args, M::OatFd, &oat_fd_); |
| AssignIfExists(args, M::OatLocation, &oat_location_); |
| AssignIfExists(args, M::Watchdog, &parser_options->watch_dog_enabled); |
| AssignIfExists(args, M::WatchdogTimeout, &parser_options->watch_dog_timeout_in_ms); |
| AssignIfExists(args, M::Threads, &thread_count_); |
| AssignIfExists(args, M::ImageClasses, &image_classes_filename_); |
| AssignIfExists(args, M::ImageClassesZip, &image_classes_zip_filename_); |
| AssignIfExists(args, M::CompiledClasses, &compiled_classes_filename_); |
| AssignIfExists(args, M::CompiledClassesZip, &compiled_classes_zip_filename_); |
| AssignIfExists(args, M::CompiledMethods, &compiled_methods_filename_); |
| AssignIfExists(args, M::CompiledMethodsZip, &compiled_methods_zip_filename_); |
| AssignIfExists(args, M::Passes, &passes_to_run_filename_); |
| AssignIfExists(args, M::BootImage, &parser_options->boot_image_filename); |
| AssignIfExists(args, M::AndroidRoot, &android_root_); |
| AssignIfExists(args, M::Profile, &profile_file_); |
| AssignIfExists(args, M::ProfileFd, &profile_file_fd_); |
| AssignIfExists(args, M::RuntimeOptions, &runtime_args_); |
| AssignIfExists(args, M::SwapFile, &swap_file_name_); |
| AssignIfExists(args, M::SwapFileFd, &swap_fd_); |
| AssignIfExists(args, M::SwapDexSizeThreshold, &min_dex_file_cumulative_size_for_swap_); |
| AssignIfExists(args, M::SwapDexCountThreshold, &min_dex_files_for_swap_); |
| AssignIfExists(args, M::VeryLargeAppThreshold, &very_large_threshold_); |
| AssignIfExists(args, M::AppImageFile, &app_image_file_name_); |
| AssignIfExists(args, M::AppImageFileFd, &app_image_fd_); |
| AssignIfExists(args, M::NoInlineFrom, &no_inline_from_string_); |
| AssignIfExists(args, M::ClasspathDir, &classpath_dir_); |
| AssignIfExists(args, M::DirtyImageObjects, &dirty_image_objects_filename_); |
| AssignIfExists(args, M::ImageFormat, &image_storage_mode_); |
| |
| AssignIfExists(args, M::Backend, &compiler_kind_); |
| parser_options->requested_specific_compiler = args.Exists(M::Backend); |
| |
| AssignIfExists(args, M::TargetInstructionSet, &instruction_set_); |
| // arm actually means thumb2. |
| if (instruction_set_ == InstructionSet::kArm) { |
| instruction_set_ = InstructionSet::kThumb2; |
| } |
| |
| AssignTrueIfExists(args, M::Host, &is_host_); |
| AssignTrueIfExists(args, M::DumpTiming, &dump_timing_); |
| AssignTrueIfExists(args, M::DumpPasses, &dump_passes_); |
| AssignTrueIfExists(args, M::DumpStats, &dump_stats_); |
| AssignTrueIfExists(args, M::AvoidStoringInvocation, &avoid_storing_invocation_); |
| AssignTrueIfExists(args, M::MultiImage, &multi_image_); |
| |
| if (args.Exists(M::ForceDeterminism)) { |
| if (!SupportsDeterministicCompilation()) { |
| Usage("Option --force-determinism requires read barriers or a CMS/MS garbage collector"); |
| } |
| force_determinism_ = true; |
| } |
| |
| if (args.Exists(M::Base)) { |
| ParseBase(*args.Get(M::Base)); |
| } |
| if (args.Exists(M::TargetInstructionSetVariant)) { |
| ParseInstructionSetVariant(*args.Get(M::TargetInstructionSetVariant), parser_options.get()); |
| } |
| if (args.Exists(M::TargetInstructionSetFeatures)) { |
| ParseInstructionSetFeatures(*args.Get(M::TargetInstructionSetFeatures), parser_options.get()); |
| } |
| if (args.Exists(M::ClassLoaderContext)) { |
| class_loader_context_ = ClassLoaderContext::Create(*args.Get(M::ClassLoaderContext)); |
| if (class_loader_context_ == nullptr) { |
| Usage("Option --class-loader-context has an incorrect format: %s", |
| args.Get(M::ClassLoaderContext)->c_str()); |
| } |
| } |
| |
| if (!ReadCompilerOptions(args, compiler_options_.get(), &error_msg)) { |
| Usage(error_msg.c_str()); |
| } |
| |
| ProcessOptions(parser_options.get()); |
| |
| // Insert some compiler things. |
| InsertCompileOptions(argc, argv); |
| } |
| |
| // Check whether the oat output files are writable, and open them for later. Also open a swap |
| // file, if a name is given. |
| bool OpenFile() { |
| // Prune non-existent dex files now so that we don't create empty oat files for multi-image. |
| PruneNonExistentDexFiles(); |
| |
| // Expand oat and image filenames for multi image. |
| if (IsBootImage() && multi_image_) { |
| ExpandOatAndImageFilenames(); |
| } |
| |
| // OAT and VDEX file handling |
| if (oat_fd_ == -1) { |
| DCHECK(!oat_filenames_.empty()); |
| for (const char* oat_filename : oat_filenames_) { |
| std::unique_ptr<File> oat_file(OS::CreateEmptyFile(oat_filename)); |
| if (oat_file == nullptr) { |
| PLOG(ERROR) << "Failed to create oat file: " << oat_filename; |
| return false; |
| } |
| if (fchmod(oat_file->Fd(), 0644) != 0) { |
| PLOG(ERROR) << "Failed to make oat file world readable: " << oat_filename; |
| oat_file->Erase(); |
| return false; |
| } |
| oat_files_.push_back(std::move(oat_file)); |
| DCHECK_EQ(input_vdex_fd_, -1); |
| if (!input_vdex_.empty()) { |
| std::string error_msg; |
| input_vdex_file_ = VdexFile::Open(input_vdex_, |
| /* writable */ false, |
| /* low_4gb */ false, |
| DoEagerUnquickeningOfVdex(), |
| &error_msg); |
| } |
| |
| DCHECK_EQ(output_vdex_fd_, -1); |
| std::string vdex_filename = output_vdex_.empty() |
| ? ReplaceFileExtension(oat_filename, "vdex") |
| : output_vdex_; |
| if (vdex_filename == input_vdex_ && output_vdex_.empty()) { |
| update_input_vdex_ = true; |
| std::unique_ptr<File> vdex_file(OS::OpenFileReadWrite(vdex_filename.c_str())); |
| vdex_files_.push_back(std::move(vdex_file)); |
| } else { |
| std::unique_ptr<File> vdex_file(OS::CreateEmptyFile(vdex_filename.c_str())); |
| if (vdex_file == nullptr) { |
| PLOG(ERROR) << "Failed to open vdex file: " << vdex_filename; |
| return false; |
| } |
| if (fchmod(vdex_file->Fd(), 0644) != 0) { |
| PLOG(ERROR) << "Failed to make vdex file world readable: " << vdex_filename; |
| vdex_file->Erase(); |
| return false; |
| } |
| vdex_files_.push_back(std::move(vdex_file)); |
| } |
| } |
| } else { |
| std::unique_ptr<File> oat_file(new File(oat_fd_, oat_location_, /* check_usage */ true)); |
| if (oat_file == nullptr) { |
| PLOG(ERROR) << "Failed to create oat file: " << oat_location_; |
| return false; |
| } |
| oat_file->DisableAutoClose(); |
| if (oat_file->SetLength(0) != 0) { |
| PLOG(WARNING) << "Truncating oat file " << oat_location_ << " failed."; |
| oat_file->Erase(); |
| return false; |
| } |
| oat_files_.push_back(std::move(oat_file)); |
| |
| if (input_vdex_fd_ != -1) { |
| struct stat s; |
| int rc = TEMP_FAILURE_RETRY(fstat(input_vdex_fd_, &s)); |
| if (rc == -1) { |
| PLOG(WARNING) << "Failed getting length of vdex file"; |
| } else { |
| std::string error_msg; |
| input_vdex_file_ = VdexFile::Open(input_vdex_fd_, |
| s.st_size, |
| "vdex", |
| /* writable */ false, |
| /* low_4gb */ false, |
| DoEagerUnquickeningOfVdex(), |
| &error_msg); |
| // If there's any problem with the passed vdex, just warn and proceed |
| // without it. |
| if (input_vdex_file_ == nullptr) { |
| PLOG(WARNING) << "Failed opening vdex file: " << error_msg; |
| } |
| } |
| } |
| |
| DCHECK_NE(output_vdex_fd_, -1); |
| std::string vdex_location = ReplaceFileExtension(oat_location_, "vdex"); |
| std::unique_ptr<File> vdex_file(new File(output_vdex_fd_, vdex_location, /* check_usage */ true)); |
| if (vdex_file == nullptr) { |
| PLOG(ERROR) << "Failed to create vdex file: " << vdex_location; |
| return false; |
| } |
| vdex_file->DisableAutoClose(); |
| if (input_vdex_file_ != nullptr && output_vdex_fd_ == input_vdex_fd_) { |
| update_input_vdex_ = true; |
| } else { |
| if (vdex_file->SetLength(0) != 0) { |
| PLOG(ERROR) << "Truncating vdex file " << vdex_location << " failed."; |
| vdex_file->Erase(); |
| return false; |
| } |
| } |
| vdex_files_.push_back(std::move(vdex_file)); |
| |
| oat_filenames_.push_back(oat_location_.c_str()); |
| } |
| |
| // If we're updating in place a vdex file, be defensive and put an invalid vdex magic in case |
| // dex2oat gets killed. |
| // Note: we're only invalidating the magic data in the file, as dex2oat needs the rest of |
| // the information to remain valid. |
| if (update_input_vdex_) { |
| std::unique_ptr<linker::BufferedOutputStream> vdex_out = |
| std::make_unique<linker::BufferedOutputStream>( |
| std::make_unique<linker::FileOutputStream>(vdex_files_.back().get())); |
| if (!vdex_out->WriteFully(&VdexFile::Header::kVdexInvalidMagic, |
| arraysize(VdexFile::Header::kVdexInvalidMagic))) { |
| PLOG(ERROR) << "Failed to invalidate vdex header. File: " << vdex_out->GetLocation(); |
| return false; |
| } |
| |
| if (!vdex_out->Flush()) { |
| PLOG(ERROR) << "Failed to flush stream after invalidating header of vdex file." |
| << " File: " << vdex_out->GetLocation(); |
| return false; |
| } |
| } |
| |
| // Swap file handling |
| // |
| // If the swap fd is not -1, we assume this is the file descriptor of an open but unlinked file |
| // that we can use for swap. |
| // |
| // If the swap fd is -1 and we have a swap-file string, open the given file as a swap file. We |
| // will immediately unlink to satisfy the swap fd assumption. |
| if (swap_fd_ == -1 && !swap_file_name_.empty()) { |
| std::unique_ptr<File> swap_file(OS::CreateEmptyFile(swap_file_name_.c_str())); |
| if (swap_file.get() == nullptr) { |
| PLOG(ERROR) << "Failed to create swap file: " << swap_file_name_; |
| return false; |
| } |
| swap_fd_ = swap_file->Fd(); |
| swap_file->MarkUnchecked(); // We don't we to track this, it will be unlinked immediately. |
| swap_file->DisableAutoClose(); // We'll handle it ourselves, the File object will be |
| // released immediately. |
| unlink(swap_file_name_.c_str()); |
| } |
| |
| return true; |
| } |
| |
| void EraseOutputFiles() { |
| for (auto& files : { &vdex_files_, &oat_files_ }) { |
| for (size_t i = 0; i < files->size(); ++i) { |
| if ((*files)[i].get() != nullptr) { |
| (*files)[i]->Erase(); |
| (*files)[i].reset(); |
| } |
| } |
| } |
| } |
| |
| void LoadClassProfileDescriptors() { |
| if (profile_compilation_info_ != nullptr && IsImage()) { |
| Runtime* runtime = Runtime::Current(); |
| CHECK(runtime != nullptr); |
| // Filter out class path classes since we don't want to include these in the image. |
| image_classes_.reset( |
| new std::unordered_set<std::string>( |
| profile_compilation_info_->GetClassDescriptors(dex_files_))); |
| VLOG(compiler) << "Loaded " << image_classes_->size() |
| << " image class descriptors from profile"; |
| if (VLOG_IS_ON(compiler)) { |
| for (const std::string& s : *image_classes_) { |
| LOG(INFO) << "Image class " << s; |
| } |
| } |
| } |
| } |
| |
| // Set up the environment for compilation. Includes starting the runtime and loading/opening the |
| // boot class path. |
| dex2oat::ReturnCode Setup() { |
| TimingLogger::ScopedTiming t("dex2oat Setup", timings_); |
| |
| if (!PrepareImageClasses() || !PrepareCompiledClasses() || !PrepareCompiledMethods() || |
| !PrepareDirtyObjects()) { |
| return dex2oat::ReturnCode::kOther; |
| } |
| |
| // Verification results are null since we don't know if we will need them yet as the compler |
| // filter may change. |
| callbacks_.reset(new QuickCompilerCallbacks( |
| IsBootImage() ? |
| CompilerCallbacks::CallbackMode::kCompileBootImage : |
| CompilerCallbacks::CallbackMode::kCompileApp)); |
| |
| RuntimeArgumentMap runtime_options; |
| if (!PrepareRuntimeOptions(&runtime_options, callbacks_.get())) { |
| return dex2oat::ReturnCode::kOther; |
| } |
| |
| CreateOatWriters(); |
| if (!AddDexFileSources()) { |
| return dex2oat::ReturnCode::kOther; |
| } |
| |
| if (IsBootImage() && image_filenames_.size() > 1) { |
| // If we're compiling the boot image, store the boot classpath into the Key-Value store. |
| // We need this for the multi-image case. |
| key_value_store_->Put(OatHeader::kBootClassPathKey, |
| gc::space::ImageSpace::GetMultiImageBootClassPath(dex_locations_, |
| oat_filenames_, |
| image_filenames_)); |
| } |
| |
| if (!IsBootImage()) { |
| // When compiling an app, create the runtime early to retrieve |
| // the image location key needed for the oat header. |
| if (!CreateRuntime(std::move(runtime_options))) { |
| return dex2oat::ReturnCode::kCreateRuntime; |
| } |
| |
| if (CompilerFilter::DependsOnImageChecksum(compiler_options_->GetCompilerFilter())) { |
| TimingLogger::ScopedTiming t3("Loading image checksum", timings_); |
| std::vector<gc::space::ImageSpace*> image_spaces = |
| Runtime::Current()->GetHeap()->GetBootImageSpaces(); |
| image_file_location_oat_checksum_ = image_spaces[0]->GetImageHeader().GetOatChecksum(); |
| image_file_location_oat_data_begin_ = |
| reinterpret_cast<uintptr_t>(image_spaces[0]->GetImageHeader().GetOatDataBegin()); |
| image_patch_delta_ = image_spaces[0]->GetImageHeader().GetPatchDelta(); |
| // Store the boot image filename(s). |
| std::vector<std::string> image_filenames; |
| for (const gc::space::ImageSpace* image_space : image_spaces) { |
| image_filenames.push_back(image_space->GetImageFilename()); |
| } |
| std::string image_file_location = android::base::Join(image_filenames, ':'); |
| if (!image_file_location.empty()) { |
| key_value_store_->Put(OatHeader::kImageLocationKey, image_file_location); |
| } |
| } else { |
| image_file_location_oat_checksum_ = 0u; |
| image_file_location_oat_data_begin_ = 0u; |
| image_patch_delta_ = 0; |
| } |
| |
| // Open dex files for class path. |
| |
| if (class_loader_context_ == nullptr) { |
| // If no context was specified use the default one (which is an empty PathClassLoader). |
| class_loader_context_ = std::unique_ptr<ClassLoaderContext>(ClassLoaderContext::Default()); |
| } |
| |
| DCHECK_EQ(oat_writers_.size(), 1u); |
| |
| // Note: Ideally we would reject context where the source dex files are also |
| // specified in the classpath (as it doesn't make sense). However this is currently |
| // needed for non-prebuild tests and benchmarks which expects on the fly compilation. |
| // Also, for secondary dex files we do not have control on the actual classpath. |
| // Instead of aborting, remove all the source location from the context classpaths. |
| if (class_loader_context_->RemoveLocationsFromClassPaths( |
| oat_writers_[0]->GetSourceLocations())) { |
| LOG(WARNING) << "The source files to be compiled are also in the classpath."; |
| } |
| |
| // We need to open the dex files before encoding the context in the oat file. |
| // (because the encoding adds the dex checksum...) |
| // TODO(calin): consider redesigning this so we don't have to open the dex files before |
| // creating the actual class loader. |
| if (!class_loader_context_->OpenDexFiles(runtime_->GetInstructionSet(), classpath_dir_)) { |
| // Do not abort if we couldn't open files from the classpath. They might be |
| // apks without dex files and right now are opening flow will fail them. |
| LOG(WARNING) << "Failed to open classpath dex files"; |
| } |
| |
| // Store the class loader context in the oat header. |
| key_value_store_->Put(OatHeader::kClassPathKey, |
| class_loader_context_->EncodeContextForOatFile(classpath_dir_)); |
| } |
| |
| // Now that we have finalized key_value_store_, start writing the oat file. |
| { |
| TimingLogger::ScopedTiming t_dex("Writing and opening dex files", timings_); |
| rodata_.reserve(oat_writers_.size()); |
| for (size_t i = 0, size = oat_writers_.size(); i != size; ++i) { |
| rodata_.push_back(elf_writers_[i]->StartRoData()); |
| // Unzip or copy dex files straight to the oat file. |
| std::unique_ptr<MemMap> opened_dex_files_map; |
| std::vector<std::unique_ptr<const DexFile>> opened_dex_files; |
| // No need to verify the dex file for: |
| // 1) Dexlayout since it does the verification. It also may not pass the verification since |
| // we don't update the dex checksum. |
| // 2) when we have a vdex file, which means it was already verified. |
| const bool verify = !DoDexLayoutOptimizations() && (input_vdex_file_ == nullptr); |
| if (!oat_writers_[i]->WriteAndOpenDexFiles( |
| kIsVdexEnabled ? vdex_files_[i].get() : oat_files_[i].get(), |
| rodata_.back(), |
| instruction_set_, |
| instruction_set_features_.get(), |
| key_value_store_.get(), |
| verify, |
| update_input_vdex_, |
| &opened_dex_files_map, |
| &opened_dex_files)) { |
| return dex2oat::ReturnCode::kOther; |
| } |
| dex_files_per_oat_file_.push_back(MakeNonOwningPointerVector(opened_dex_files)); |
| if (opened_dex_files_map != nullptr) { |
| opened_dex_files_maps_.push_back(std::move(opened_dex_files_map)); |
| for (std::unique_ptr<const DexFile>& dex_file : opened_dex_files) { |
| dex_file_oat_index_map_.emplace(dex_file.get(), i); |
| opened_dex_files_.push_back(std::move(dex_file)); |
| } |
| } else { |
| DCHECK(opened_dex_files.empty()); |
| } |
| } |
| } |
| |
| dex_files_ = MakeNonOwningPointerVector(opened_dex_files_); |
| |
| // If we need to downgrade the compiler-filter for size reasons. |
| if (!IsBootImage() && IsVeryLarge(dex_files_)) { |
| // Disable app image to make sure dex2oat unloading is enabled. |
| compiler_options_->DisableAppImage(); |
| |
| // If we need to downgrade the compiler-filter for size reasons, do that early before we read |
| // it below for creating verification callbacks. |
| if (!CompilerFilter::IsAsGoodAs(kLargeAppFilter, compiler_options_->GetCompilerFilter())) { |
| LOG(INFO) << "Very large app, downgrading to verify."; |
| // Note: this change won't be reflected in the key-value store, as that had to be |
| // finalized before loading the dex files. This setup is currently required |
| // to get the size from the DexFile objects. |
| // TODO: refactor. b/29790079 |
| compiler_options_->SetCompilerFilter(kLargeAppFilter); |
| } |
| } |
| |
| if (CompilerFilter::IsAnyCompilationEnabled(compiler_options_->GetCompilerFilter())) { |
| // Only modes with compilation require verification results, do this here instead of when we |
| // create the compilation callbacks since the compilation mode may have been changed by the |
| // very large app logic. |
| // Avoiding setting the verification results saves RAM by not adding the dex files later in |
| // the function. |
| verification_results_.reset(new VerificationResults(compiler_options_.get())); |
| callbacks_->SetVerificationResults(verification_results_.get()); |
| } |
| |
| // We had to postpone the swap decision till now, as this is the point when we actually |
| // know about the dex files we're going to use. |
| |
| // Make sure that we didn't create the driver, yet. |
| CHECK(driver_ == nullptr); |
| // If we use a swap file, ensure we are above the threshold to make it necessary. |
| if (swap_fd_ != -1) { |
| if (!UseSwap(IsBootImage(), dex_files_)) { |
| close(swap_fd_); |
| swap_fd_ = -1; |
| VLOG(compiler) << "Decided to run without swap."; |
| } else { |
| LOG(INFO) << "Large app, accepted running with swap."; |
| } |
| } |
| // Note that dex2oat won't close the swap_fd_. The compiler driver's swap space will do that. |
| if (IsBootImage()) { |
| // For boot image, pass opened dex files to the Runtime::Create(). |
| // Note: Runtime acquires ownership of these dex files. |
| runtime_options.Set(RuntimeArgumentMap::BootClassPathDexList, &opened_dex_files_); |
| if (!CreateRuntime(std::move(runtime_options))) { |
| return dex2oat::ReturnCode::kOther; |
| } |
| } |
| |
| // If we're doing the image, override the compiler filter to force full compilation. Must be |
| // done ahead of WellKnownClasses::Init that causes verification. Note: doesn't force |
| // compilation of class initializers. |
| // Whilst we're in native take the opportunity to initialize well known classes. |
| Thread* self = Thread::Current(); |
| WellKnownClasses::Init(self->GetJniEnv()); |
| |
| if (!IsBootImage()) { |
| constexpr bool kSaveDexInput = false; |
| if (kSaveDexInput) { |
| SaveDexInput(); |
| } |
| } |
| |
| // Ensure opened dex files are writable for dex-to-dex transformations. |
| for (const std::unique_ptr<MemMap>& map : opened_dex_files_maps_) { |
| if (!map->Protect(PROT_READ | PROT_WRITE)) { |
| PLOG(ERROR) << "Failed to make .dex files writeable."; |
| return dex2oat::ReturnCode::kOther; |
| } |
| } |
| |
| // Verification results are only required for modes that have any compilation. Avoid |
| // adding the dex files if possible to prevent allocating large arrays. |
| if (verification_results_ != nullptr) { |
| for (const auto& dex_file : dex_files_) { |
| // Pre-register dex files so that we can access verification results without locks during |
| // compilation and verification. |
| verification_results_->AddDexFile(dex_file); |
| } |
| } |
| |
| return dex2oat::ReturnCode::kNoFailure; |
| } |
| |
| // If we need to keep the oat file open for the image writer. |
| bool ShouldKeepOatFileOpen() const { |
| return IsImage() && oat_fd_ != kInvalidFd; |
| } |
| |
| // Doesn't return the class loader since it's not meant to be used for image compilation. |
| void CompileDexFilesIndividually() { |
| CHECK(!IsImage()) << "Not supported with image"; |
| for (const DexFile* dex_file : dex_files_) { |
| std::vector<const DexFile*> dex_files(1u, dex_file); |
| VLOG(compiler) << "Compiling " << dex_file->GetLocation(); |
| jobject class_loader = CompileDexFiles(dex_files); |
| CHECK(class_loader != nullptr); |
| ScopedObjectAccess soa(Thread::Current()); |
| // Unload class loader to free RAM. |
| jweak weak_class_loader = soa.Env()->vm->AddWeakGlobalRef( |
| soa.Self(), |
| soa.Decode<mirror::ClassLoader>(class_loader)); |
| soa.Env()->vm->DeleteGlobalRef(soa.Self(), class_loader); |
| runtime_->GetHeap()->CollectGarbage(/*clear_soft_references*/ true); |
| ObjPtr<mirror::ClassLoader> decoded_weak = soa.Decode<mirror::ClassLoader>(weak_class_loader); |
| if (decoded_weak != nullptr) { |
| LOG(FATAL) << "Failed to unload class loader, path from root set: " |
| << runtime_->GetHeap()->GetVerification()->FirstPathFromRootSet(decoded_weak); |
| } |
| VLOG(compiler) << "Unloaded classloader"; |
| } |
| } |
| |
| bool ShouldCompileDexFilesIndividually() const { |
| // Compile individually if we are: |
| // 1. not building an image, |
| // 2. not verifying a vdex file, |
| // 3. using multidex, |
| // 4. not doing any AOT compilation. |
| // This means extract, no-vdex verify, and quicken, will use the individual compilation |
| // mode (to reduce RAM used by the compiler). |
| return !IsImage() && |
| !update_input_vdex_ && |
| dex_files_.size() > 1 && |
| !CompilerFilter::IsAotCompilationEnabled(compiler_options_->GetCompilerFilter()); |
| } |
| |
| // Set up and create the compiler driver and then invoke it to compile all the dex files. |
| jobject Compile() { |
| ClassLinker* const class_linker = Runtime::Current()->GetClassLinker(); |
| |
| TimingLogger::ScopedTiming t("dex2oat Compile", timings_); |
| compiler_phases_timings_.reset(new CumulativeLogger("compilation times")); |
| |
| // Find the dex files we should not inline from. |
| std::vector<std::string> no_inline_filters; |
| Split(no_inline_from_string_, ',', &no_inline_filters); |
| |
| // For now, on the host always have core-oj removed. |
| const std::string core_oj = "core-oj"; |
| if (!kIsTargetBuild && !ContainsElement(no_inline_filters, core_oj)) { |
| no_inline_filters.push_back(core_oj); |
| } |
| |
| if (!no_inline_filters.empty()) { |
| std::vector<const DexFile*> class_path_files; |
| if (!IsBootImage()) { |
| // The class loader context is used only for apps. |
| class_path_files = class_loader_context_->FlattenOpenedDexFiles(); |
| } |
| |
| std::vector<const std::vector<const DexFile*>*> dex_file_vectors = { |
| &class_linker->GetBootClassPath(), |
| &class_path_files, |
| &dex_files_ |
| }; |
| for (const std::vector<const DexFile*>* dex_file_vector : dex_file_vectors) { |
| for (const DexFile* dex_file : *dex_file_vector) { |
| for (const std::string& filter : no_inline_filters) { |
| // Use dex_file->GetLocation() rather than dex_file->GetBaseLocation(). This |
| // allows tests to specify <test-dexfile>!classes2.dex if needed but if the |
| // base location passes the StartsWith() test, so do all extra locations. |
| std::string dex_location = dex_file->GetLocation(); |
| if (filter.find('/') == std::string::npos) { |
| // The filter does not contain the path. Remove the path from dex_location as well. |
| size_t last_slash = dex_file->GetLocation().rfind('/'); |
| if (last_slash != std::string::npos) { |
| dex_location = dex_location.substr(last_slash + 1); |
| } |
| } |
| |
| if (android::base::StartsWith(dex_location, filter.c_str())) { |
| VLOG(compiler) << "Disabling inlining from " << dex_file->GetLocation(); |
| no_inline_from_dex_files_.push_back(dex_file); |
| break; |
| } |
| } |
| } |
| } |
| if (!no_inline_from_dex_files_.empty()) { |
| compiler_options_->no_inline_from_ = &no_inline_from_dex_files_; |
| } |
| } |
| |
| driver_.reset(new CompilerDriver(compiler_options_.get(), |
| verification_results_.get(), |
| compiler_kind_, |
| instruction_set_, |
| instruction_set_features_.get(), |
| image_classes_.release(), |
| compiled_classes_.release(), |
| compiled_methods_.release(), |
| thread_count_, |
| dump_stats_, |
| dump_passes_, |
| compiler_phases_timings_.get(), |
| swap_fd_, |
| profile_compilation_info_.get())); |
| driver_->SetDexFilesForOatFile(dex_files_); |
| if (!IsBootImage()) { |
| driver_->SetClasspathDexFiles(class_loader_context_->FlattenOpenedDexFiles()); |
| } |
| |
| const bool compile_individually = ShouldCompileDexFilesIndividually(); |
| if (compile_individually) { |
| // Set the compiler driver in the callbacks so that we can avoid re-verification. This not |
| // only helps performance but also prevents reverifying quickened bytecodes. Attempting |
| // verify quickened bytecode causes verification failures. |
| // Only set the compiler filter if we are doing separate compilation since there is a bit |
| // of overhead when checking if a class was previously verified. |
| callbacks_->SetDoesClassUnloading(true, driver_.get()); |
| } |
| |
| // Setup vdex for compilation. |
| if (!DoEagerUnquickeningOfVdex() && input_vdex_file_ != nullptr) { |
| callbacks_->SetVerifierDeps( |
| new verifier::VerifierDeps(dex_files_, input_vdex_file_->GetVerifierDepsData())); |
| |
| // TODO: we unquicken unconditionally, as we don't know |
| // if the boot image has changed. How exactly we'll know is under |
| // experimentation. |
| TimingLogger::ScopedTiming time_unquicken("Unquicken", timings_); |
| |
| // We do not decompile a RETURN_VOID_NO_BARRIER into a RETURN_VOID, as the quickening |
| // optimization does not depend on the boot image (the optimization relies on not |
| // having final fields in a class, which does not change for an app). |
| VdexFile::Unquicken(dex_files_, |
| input_vdex_file_->GetQuickeningInfo(), |
| /* decompile_return_instruction */ false); |
| } else { |
| // Create the main VerifierDeps, here instead of in the compiler since we want to aggregate |
| // the results for all the dex files, not just the results for the current dex file. |
| callbacks_->SetVerifierDeps(new verifier::VerifierDeps(dex_files_)); |
| } |
| // Invoke the compilation. |
| if (compile_individually) { |
| CompileDexFilesIndividually(); |
| // Return a null classloader since we already freed released it. |
| return nullptr; |
| } |
| return CompileDexFiles(dex_files_); |
| } |
| |
| // Create the class loader, use it to compile, and return. |
| jobject CompileDexFiles(const std::vector<const DexFile*>& dex_files) { |
| ClassLinker* const class_linker = Runtime::Current()->GetClassLinker(); |
| |
| jobject class_loader = nullptr; |
| if (!IsBootImage()) { |
| class_loader = class_loader_context_->CreateClassLoader(dex_files_); |
| } |
| |
| // Register dex caches and key them to the class loader so that they only unload when the |
| // class loader unloads. |
| for (const auto& dex_file : dex_files) { |
| ScopedObjectAccess soa(Thread::Current()); |
| // Registering the dex cache adds a strong root in the class loader that prevents the dex |
| // cache from being unloaded early. |
| ObjPtr<mirror::DexCache> dex_cache = class_linker->RegisterDexFile( |
| *dex_file, |
| soa.Decode<mirror::ClassLoader>(class_loader)); |
| if (dex_cache == nullptr) { |
| soa.Self()->AssertPendingException(); |
| LOG(FATAL) << "Failed to register dex file " << dex_file->GetLocation() << " " |
| << soa.Self()->GetException()->Dump(); |
| } |
| } |
| driver_->CompileAll(class_loader, dex_files, timings_); |
| return class_loader; |
| } |
| |
| // Notes on the interleaving of creating the images and oat files to |
| // ensure the references between the two are correct. |
| // |
| // Currently we have a memory layout that looks something like this: |
| // |
| // +--------------+ |
| // | images | |
| // +--------------+ |
| // | oat files | |
| // +--------------+ |
| // | alloc spaces | |
| // +--------------+ |
| // |
| // There are several constraints on the loading of the images and oat files. |
| // |
| // 1. The images are expected to be loaded at an absolute address and |
| // contain Objects with absolute pointers within the images. |
| // |
| // 2. There are absolute pointers from Methods in the images to their |
| // code in the oat files. |
| // |
| // 3. There are absolute pointers from the code in the oat files to Methods |
| // in the images. |
| // |
| // 4. There are absolute pointers from code in the oat files to other code |
| // in the oat files. |
| // |
| // To get this all correct, we go through several steps. |
| // |
| // 1. We prepare offsets for all data in the oat files and calculate |
| // the oat data size and code size. During this stage, we also set |
| // oat code offsets in methods for use by the image writer. |
| // |
| // 2. We prepare offsets for the objects in the images and calculate |
| // the image sizes. |
| // |
| // 3. We create the oat files. Originally this was just our own proprietary |
| // file but now it is contained within an ELF dynamic object (aka an .so |
| // file). Since we know the image sizes and oat data sizes and code sizes we |
| // can prepare the ELF headers and we then know the ELF memory segment |
| // layout and we can now resolve all references. The compiler provides |
| // LinkerPatch information in each CompiledMethod and we resolve these, |
| // using the layout information and image object locations provided by |
| // image writer, as we're writing the method code. |
| // |
| // 4. We create the image files. They need to know where the oat files |
| // will be loaded after itself. Originally oat files were simply |
| // memory mapped so we could predict where their contents were based |
| // on the file size. Now that they are ELF files, we need to inspect |
| // the ELF files to understand the in memory segment layout including |
| // where the oat header is located within. |
| // TODO: We could just remember this information from step 3. |
| // |
| // 5. We fixup the ELF program headers so that dlopen will try to |
| // load the .so at the desired location at runtime by offsetting the |
| // Elf32_Phdr.p_vaddr values by the desired base address. |
| // TODO: Do this in step 3. We already know the layout there. |
| // |
| // Steps 1.-3. are done by the CreateOatFile() above, steps 4.-5. |
| // are done by the CreateImageFile() below. |
| |
| // Write out the generated code part. Calls the OatWriter and ElfBuilder. Also prepares the |
| // ImageWriter, if necessary. |
| // Note: Flushing (and closing) the file is the caller's responsibility, except for the failure |
| // case (when the file will be explicitly erased). |
| bool WriteOutputFiles() { |
| TimingLogger::ScopedTiming t("dex2oat Oat", timings_); |
| |
| // Sync the data to the file, in case we did dex2dex transformations. |
| for (const std::unique_ptr<MemMap>& map : opened_dex_files_maps_) { |
| if (!map->Sync()) { |
| PLOG(ERROR) << "Failed to Sync() dex2dex output. Map: " << map->GetName(); |
| return false; |
| } |
| } |
| |
| if (IsImage()) { |
| if (IsAppImage() && image_base_ == 0) { |
| gc::Heap* const heap = Runtime::Current()->GetHeap(); |
| for (gc::space::ImageSpace* image_space : heap->GetBootImageSpaces()) { |
| image_base_ = std::max(image_base_, RoundUp( |
| reinterpret_cast<uintptr_t>(image_space->GetImageHeader().GetOatFileEnd()), |
| kPageSize)); |
| } |
| // The non moving space is right after the oat file. Put the preferred app image location |
| // right after the non moving space so that we ideally get a continuous immune region for |
| // the GC. |
| // Use the default non moving space capacity since dex2oat does not have a separate non- |
| // moving space. This means the runtime's non moving space space size will be as large |
| // as the growth limit for dex2oat, but smaller in the zygote. |
| const size_t non_moving_space_capacity = gc::Heap::kDefaultNonMovingSpaceCapacity; |
| image_base_ += non_moving_space_capacity; |
| VLOG(compiler) << "App image base=" << reinterpret_cast<void*>(image_base_); |
| } |
| |
| image_writer_.reset(new linker::ImageWriter(*driver_, |
| image_base_, |
| compiler_options_->GetCompilePic(), |
| IsAppImage(), |
| image_storage_mode_, |
| oat_filenames_, |
| dex_file_oat_index_map_, |
| dirty_image_objects_.get())); |
| |
| // We need to prepare method offsets in the image address space for direct method patching. |
| TimingLogger::ScopedTiming t2("dex2oat Prepare image address space", timings_); |
| if (!image_writer_->PrepareImageAddressSpace()) { |
| LOG(ERROR) << "Failed to prepare image address space."; |
| return false; |
| } |
| } |
| |
| // Initialize the writers with the compiler driver, image writer, and their |
| // dex files. The writers were created without those being there yet. |
| for (size_t i = 0, size = oat_files_.size(); i != size; ++i) { |
| std::unique_ptr<linker::OatWriter>& oat_writer = oat_writers_[i]; |
| std::vector<const DexFile*>& dex_files = dex_files_per_oat_file_[i]; |
| oat_writer->Initialize(driver_.get(), image_writer_.get(), dex_files); |
| } |
| |
| { |
| TimingLogger::ScopedTiming t2("dex2oat Write VDEX", timings_); |
| DCHECK(IsBootImage() || oat_files_.size() == 1u); |
| verifier::VerifierDeps* verifier_deps = callbacks_->GetVerifierDeps(); |
| for (size_t i = 0, size = oat_files_.size(); i != size; ++i) { |
| File* vdex_file = vdex_files_[i].get(); |
| std::unique_ptr<linker::BufferedOutputStream> vdex_out = |
| std::make_unique<linker::BufferedOutputStream>( |
| std::make_unique<linker::FileOutputStream>(vdex_file)); |
| |
| if (!oat_writers_[i]->WriteVerifierDeps(vdex_out.get(), verifier_deps)) { |
| LOG(ERROR) << "Failed to write verifier dependencies into VDEX " << vdex_file->GetPath(); |
| return false; |
| } |
| |
| if (!oat_writers_[i]->WriteQuickeningInfo(vdex_out.get())) { |
| LOG(ERROR) << "Failed to write quickening info into VDEX " << vdex_file->GetPath(); |
| return false; |
| } |
| |
| // VDEX finalized, seek back to the beginning and write checksums and the header. |
| if (!oat_writers_[i]->WriteChecksumsAndVdexHeader(vdex_out.get())) { |
| LOG(ERROR) << "Failed to write vdex header into VDEX " << vdex_file->GetPath(); |
| return false; |
| } |
| } |
| } |
| |
| { |
| TimingLogger::ScopedTiming t2("dex2oat Write ELF", timings_); |
| linker::MultiOatRelativePatcher patcher(instruction_set_, instruction_set_features_.get()); |
| for (size_t i = 0, size = oat_files_.size(); i != size; ++i) { |
| std::unique_ptr<linker::ElfWriter>& elf_writer = elf_writers_[i]; |
| std::unique_ptr<linker::OatWriter>& oat_writer = oat_writers_[i]; |
| |
| oat_writer->PrepareLayout(&patcher); |
| |
| size_t rodata_size = oat_writer->GetOatHeader().GetExecutableOffset(); |
| size_t text_size = oat_writer->GetOatSize() - rodata_size; |
| elf_writer->PrepareDynamicSection(rodata_size, |
| text_size, |
| oat_writer->GetBssSize(), |
| oat_writer->GetBssMethodsOffset(), |
| oat_writer->GetBssRootsOffset()); |
| |
| if (IsImage()) { |
| // Update oat layout. |
| DCHECK(image_writer_ != nullptr); |
| DCHECK_LT(i, oat_filenames_.size()); |
| image_writer_->UpdateOatFileLayout(i, |
| elf_writer->GetLoadedSize(), |
| oat_writer->GetOatDataOffset(), |
| oat_writer->GetOatSize()); |
| } |
| |
| if (IsBootImage()) { |
| // Have the image_file_location_oat_checksum_ for boot oat files |
| // depend on the contents of all the boot oat files. This way only |
| // the primary image checksum needs to be checked to determine |
| // whether any of the images are out of date. |
| image_file_location_oat_checksum_ ^= oat_writer->GetOatHeader().GetChecksum(); |
| } |
| } |
| |
| for (size_t i = 0, size = oat_files_.size(); i != size; ++i) { |
| std::unique_ptr<File>& oat_file = oat_files_[i]; |
| std::unique_ptr<linker::ElfWriter>& elf_writer = elf_writers_[i]; |
| std::unique_ptr<linker::OatWriter>& oat_writer = oat_writers_[i]; |
| |
| // We need to mirror the layout of the ELF file in the compressed debug-info. |
| // Therefore PrepareDebugInfo() relies on the SetLoadedSectionSizes() call further above. |
| elf_writer->PrepareDebugInfo(oat_writer->GetMethodDebugInfo()); |
| |
| linker::OutputStream*& rodata = rodata_[i]; |
| DCHECK(rodata != nullptr); |
| if (!oat_writer->WriteRodata(rodata)) { |
| LOG(ERROR) << "Failed to write .rodata section to the ELF file " << oat_file->GetPath(); |
| return false; |
| } |
| elf_writer->EndRoData(rodata); |
| rodata = nullptr; |
| |
| linker::OutputStream* text = elf_writer->StartText(); |
| if (!oat_writer->WriteCode(text)) { |
| LOG(ERROR) << "Failed to write .text section to the ELF file " << oat_file->GetPath(); |
| return false; |
| } |
| elf_writer->EndText(text); |
| |
| if (!oat_writer->WriteHeader(elf_writer->GetStream(), |
| image_file_location_oat_checksum_, |
| image_file_location_oat_data_begin_, |
| image_patch_delta_)) { |
| LOG(ERROR) << "Failed to write oat header to the ELF file " << oat_file->GetPath(); |
| return false; |
| } |
| |
| if (IsImage()) { |
| // Update oat header information. |
| DCHECK(image_writer_ != nullptr); |
| DCHECK_LT(i, oat_filenames_.size()); |
| image_writer_->UpdateOatFileHeader(i, oat_writer->GetOatHeader()); |
| } |
| |
| elf_writer->WriteDynamicSection(); |
| elf_writer->WriteDebugInfo(oat_writer->GetMethodDebugInfo()); |
| |
| if (!elf_writer->End()) { |
| LOG(ERROR) << "Failed to write ELF file " << oat_file->GetPath(); |
| return false; |
| } |
| |
| if (!FlushOutputFile(&vdex_files_[i]) || !FlushOutputFile(&oat_files_[i])) { |
| return false; |
| } |
| |
| VLOG(compiler) << "Oat file written successfully: " << oat_filenames_[i]; |
| |
| oat_writer.reset(); |
| elf_writer.reset(); |
| } |
| } |
| |
| return true; |
| } |
| |
| // If we are compiling an image, invoke the image creation routine. Else just skip. |
| bool HandleImage() { |
| if (IsImage()) { |
| TimingLogger::ScopedTiming t("dex2oat ImageWriter", timings_); |
| if (!CreateImageFile()) { |
| return false; |
| } |
| VLOG(compiler) << "Images written successfully"; |
| } |
| return true; |
| } |
| |
| // Create a copy from stripped to unstripped. |
| bool CopyStrippedToUnstripped() { |
| for (size_t i = 0; i < oat_unstripped_.size(); ++i) { |
| // If we don't want to strip in place, copy from stripped location to unstripped location. |
| // We need to strip after image creation because FixupElf needs to use .strtab. |
| if (strcmp(oat_unstripped_[i], oat_filenames_[i]) != 0) { |
| // If the oat file is still open, flush it. |
| if (oat_files_[i].get() != nullptr && oat_files_[i]->IsOpened()) { |
| if (!FlushCloseOutputFile(&oat_files_[i])) { |
| return false; |
| } |
| } |
| |
| TimingLogger::ScopedTiming t("dex2oat OatFile copy", timings_); |
| std::unique_ptr<File> in(OS::OpenFileForReading(oat_filenames_[i])); |
| std::unique_ptr<File> out(OS::CreateEmptyFile(oat_unstripped_[i])); |
| int64_t in_length = in->GetLength(); |
| if (in_length < 0) { |
| PLOG(ERROR) << "Failed to get the length of oat file: " << in->GetPath(); |
| return false; |
| } |
| if (!out->Copy(in.get(), 0, in_length)) { |
| PLOG(ERROR) << "Failed to copy oat file to file: " << out->GetPath(); |
| return false; |
| } |
| if (out->FlushCloseOrErase() != 0) { |
| PLOG(ERROR) << "Failed to flush and close copied oat file: " << oat_unstripped_[i]; |
| return false; |
| } |
| VLOG(compiler) << "Oat file copied successfully (unstripped): " << oat_unstripped_[i]; |
| } |
| } |
| return true; |
| } |
| |
| bool FlushOutputFile(std::unique_ptr<File>* file) { |
| if (file->get() != nullptr) { |
| if (file->get()->Flush() != 0) { |
| PLOG(ERROR) << "Failed to flush output file: " << file->get()->GetPath(); |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| bool FlushCloseOutputFile(std::unique_ptr<File>* file) { |
| if (file->get() != nullptr) { |
| std::unique_ptr<File> tmp(file->release()); |
| if (tmp->FlushCloseOrErase() != 0) { |
| PLOG(ERROR) << "Failed to flush and close output file: " << tmp->GetPath(); |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| bool FlushOutputFiles() { |
| TimingLogger::ScopedTiming t2("dex2oat Flush Output Files", timings_); |
| for (auto& files : { &vdex_files_, &oat_files_ }) { |
| for (size_t i = 0; i < files->size(); ++i) { |
| if (!FlushOutputFile(&(*files)[i])) { |
| return false; |
| } |
| } |
| } |
| return true; |
| } |
| |
| bool FlushCloseOutputFiles() { |
| bool result = true; |
| for (auto& files : { &vdex_files_, &oat_files_ }) { |
| for (size_t i = 0; i < files->size(); ++i) { |
| result &= FlushCloseOutputFile(&(*files)[i]); |
| } |
| } |
| return result; |
| } |
| |
| void DumpTiming() { |
| if (dump_timing_ || (dump_slow_timing_ && timings_->GetTotalNs() > MsToNs(1000))) { |
| LOG(INFO) << Dumpable<TimingLogger>(*timings_); |
| } |
| if (dump_passes_) { |
| LOG(INFO) << Dumpable<CumulativeLogger>(*driver_->GetTimingsLogger()); |
| } |
| } |
| |
| bool IsImage() const { |
| return IsAppImage() || IsBootImage(); |
| } |
| |
| bool IsAppImage() const { |
| return compiler_options_->IsAppImage(); |
| } |
| |
| bool IsBootImage() const { |
| return compiler_options_->IsBootImage(); |
| } |
| |
| bool IsHost() const { |
| return is_host_; |
| } |
| |
| bool UseProfile() const { |
| return profile_file_fd_ != -1 || !profile_file_.empty(); |
| } |
| |
| bool DoProfileGuidedOptimizations() const { |
| return UseProfile(); |
| } |
| |
| bool DoGenerateCompactDex() const { |
| return compact_dex_level_ != CompactDexLevel::kCompactDexLevelNone; |
| } |
| |
| bool DoDexLayoutOptimizations() const { |
| return DoProfileGuidedOptimizations() || DoGenerateCompactDex(); |
| } |
| |
| bool DoOatLayoutOptimizations() const { |
| return DoProfileGuidedOptimizations(); |
| } |
| |
| bool DoEagerUnquickeningOfVdex() const { |
| // DexLayout can invalidate the vdex metadata, so we need to unquicken |
| // the vdex file eagerly, before passing it to dexlayout. |
| return DoDexLayoutOptimizations(); |
| } |
| |
| bool LoadProfile() { |
| DCHECK(UseProfile()); |
| // TODO(calin): We should be using the runtime arena pool (instead of the |
| // default profile arena). However the setup logic is messy and needs |
| // cleaning up before that (e.g. the oat writers are created before the |
| // runtime). |
| profile_compilation_info_.reset(new ProfileCompilationInfo()); |
| ScopedFlock profile_file; |
| std::string error; |
| if (profile_file_fd_ != -1) { |
| profile_file = LockedFile::DupOf(profile_file_fd_, "profile", |
| true /* read_only_mode */, &error); |
| } else if (profile_file_ != "") { |
| profile_file = LockedFile::Open(profile_file_.c_str(), O_RDONLY, true, &error); |
| } |
| |
| // Return early if we're unable to obtain a lock on the profile. |
| if (profile_file.get() == nullptr) { |
| LOG(ERROR) << "Cannot lock profiles: " << error; |
| return false; |
| } |
| |
| if (!profile_compilation_info_->Load(profile_file->Fd())) { |
| profile_compilation_info_.reset(nullptr); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| private: |
| bool UseSwap(bool is_image, const std::vector<const DexFile*>& dex_files) { |
| if (is_image) { |
| // Don't use swap, we know generation should succeed, and we don't want to slow it down. |
| return false; |
| } |
| if (dex_files.size() < min_dex_files_for_swap_) { |
| // If there are less dex files than the threshold, assume it's gonna be fine. |
| return false; |
| } |
| size_t dex_files_size = 0; |
| for (const auto* dex_file : dex_files) { |
| dex_files_size += dex_file->GetHeader().file_size_; |
| } |
| return dex_files_size >= min_dex_file_cumulative_size_for_swap_; |
| } |
| |
| bool IsVeryLarge(std::vector<const DexFile*>& dex_files) { |
| size_t dex_files_size = 0; |
| for (const auto* dex_file : dex_files) { |
| dex_files_size += dex_file->GetHeader().file_size_; |
| } |
| return dex_files_size >= very_large_threshold_; |
| } |
| |
| bool PrepareImageClasses() { |
| // If --image-classes was specified, calculate the full list of classes to include in the image. |
| if (image_classes_filename_ != nullptr) { |
| image_classes_ = |
| ReadClasses(image_classes_zip_filename_, image_classes_filename_, "image"); |
| if (image_classes_ == nullptr) { |
| return false; |
| } |
| } else if (IsBootImage()) { |
| image_classes_.reset(new std::unordered_set<std::string>); |
| } |
| return true; |
| } |
| |
| bool PrepareCompiledClasses() { |
| // If --compiled-classes was specified, calculate the full list of classes to compile in the |
| // image. |
| if (compiled_classes_filename_ != nullptr) { |
| compiled_classes_ = |
| ReadClasses(compiled_classes_zip_filename_, compiled_classes_filename_, "compiled"); |
| if (compiled_classes_ == nullptr) { |
| return false; |
| } |
| } else { |
| compiled_classes_.reset(nullptr); // By default compile everything. |
| } |
| return true; |
| } |
| |
| static std::unique_ptr<std::unordered_set<std::string>> ReadClasses(const char* zip_filename, |
| const char* classes_filename, |
| const char* tag) { |
| std::unique_ptr<std::unordered_set<std::string>> classes; |
| std::string error_msg; |
| if (zip_filename != nullptr) { |
| classes.reset(ReadImageClassesFromZip(zip_filename, classes_filename, &error_msg)); |
| } else { |
| classes.reset(ReadImageClassesFromFile(classes_filename)); |
| } |
| if (classes == nullptr) { |
| LOG(ERROR) << "Failed to create list of " << tag << " classes from '" |
| << classes_filename << "': " << error_msg; |
| } |
| return classes; |
| } |
| |
| bool PrepareCompiledMethods() { |
| // If --compiled-methods was specified, read the methods to compile from the given file(s). |
| if (compiled_methods_filename_ != nullptr) { |
| std::string error_msg; |
| if (compiled_methods_zip_filename_ != nullptr) { |
| compiled_methods_.reset(ReadCommentedInputFromZip<std::unordered_set<std::string>>( |
| compiled_methods_zip_filename_, |
| compiled_methods_filename_, |
| nullptr, // No post-processing. |
| &error_msg)); |
| } else { |
| compiled_methods_.reset(ReadCommentedInputFromFile<std::unordered_set<std::string>>( |
| compiled_methods_filename_, |
| nullptr)); // No post-processing. |
| } |
| if (compiled_methods_.get() == nullptr) { |
| LOG(ERROR) << "Failed to create list of compiled methods from '" |
| << compiled_methods_filename_ << "': " << error_msg; |
| return false; |
| } |
| } else { |
| compiled_methods_.reset(nullptr); // By default compile everything. |
| } |
| return true; |
| } |
| |
| bool PrepareDirtyObjects() { |
| if (dirty_image_objects_filename_ != nullptr) { |
| dirty_image_objects_.reset(ReadCommentedInputFromFile<std::unordered_set<std::string>>( |
| dirty_image_objects_filename_, |
| nullptr)); |
| if (dirty_image_objects_ == nullptr) { |
| LOG(ERROR) << "Failed to create list of dirty objects from '" |
| << dirty_image_objects_filename_ << "'"; |
| return false; |
| } |
| } else { |
| dirty_image_objects_.reset(nullptr); |
| } |
| return true; |
| } |
| |
| void PruneNonExistentDexFiles() { |
| DCHECK_EQ(dex_filenames_.size(), dex_locations_.size()); |
| size_t kept = 0u; |
| for (size_t i = 0, size = dex_filenames_.size(); i != size; ++i) { |
| if (!OS::FileExists(dex_filenames_[i])) { |
| LOG(WARNING) << "Skipping non-existent dex file '" << dex_filenames_[i] << "'"; |
| } else { |
| dex_filenames_[kept] = dex_filenames_[i]; |
| dex_locations_[kept] = dex_locations_[i]; |
| ++kept; |
| } |
| } |
| dex_filenames_.resize(kept); |
| dex_locations_.resize(kept); |
| } |
| |
| bool AddDexFileSources() { |
| TimingLogger::ScopedTiming t2("AddDexFileSources", timings_); |
| if (input_vdex_file_ != nullptr) { |
| DCHECK_EQ(oat_writers_.size(), 1u); |
| const std::string& name = zip_location_.empty() ? dex_locations_[0] : zip_location_; |
| DCHECK(!name.empty()); |
| if (!oat_writers_[0]->AddVdexDexFilesSource(*input_vdex_file_.get(), name.c_str())) { |
| return false; |
| } |
| } else if (zip_fd_ != -1) { |
| DCHECK_EQ(oat_writers_.size(), 1u); |
| if (!oat_writers_[0]->AddZippedDexFilesSource(File(zip_fd_, /* check_usage */ false), |
| zip_location_.c_str())) { |
| return false; |
| } |
| } else if (oat_writers_.size() > 1u) { |
| // Multi-image. |
| DCHECK_EQ(oat_writers_.size(), dex_filenames_.size()); |
| DCHECK_EQ(oat_writers_.size(), dex_locations_.size()); |
| for (size_t i = 0, size = oat_writers_.size(); i != size; ++i) { |
| if (!oat_writers_[i]->AddDexFileSource(dex_filenames_[i], dex_locations_[i])) { |
| return false; |
| } |
| } |
| } else { |
| DCHECK_EQ(oat_writers_.size(), 1u); |
| DCHECK_EQ(dex_filenames_.size(), dex_locations_.size()); |
| DCHECK_NE(dex_filenames_.size(), 0u); |
| for (size_t i = 0; i != dex_filenames_.size(); ++i) { |
| if (!oat_writers_[0]->AddDexFileSource(dex_filenames_[i], dex_locations_[i])) { |
| return false; |
| } |
| } |
| } |
| return true; |
| } |
| |
| void CreateOatWriters() { |
| TimingLogger::ScopedTiming t2("CreateOatWriters", timings_); |
| elf_writers_.reserve(oat_files_.size()); |
| oat_writers_.reserve(oat_files_.size()); |
| for (const std::unique_ptr<File>& oat_file : oat_files_) { |
| elf_writers_.emplace_back(linker::CreateElfWriterQuick(instruction_set_, |
| instruction_set_features_.get(), |
| compiler_options_.get(), |
| oat_file.get())); |
| elf_writers_.back()->Start(); |
| const bool do_oat_writer_layout = DoDexLayoutOptimizations() || DoOatLayoutOptimizations(); |
| oat_writers_.emplace_back(new linker::OatWriter( |
| IsBootImage(), |
| timings_, |
| do_oat_writer_layout ? profile_compilation_info_.get() : nullptr, |
| compact_dex_level_)); |
| } |
| } |
| |
| void SaveDexInput() { |
| for (size_t i = 0; i < dex_files_.size(); ++i) { |
| const DexFile* dex_file = dex_files_[i]; |
| std::string tmp_file_name(StringPrintf("/data/local/tmp/dex2oat.%d.%zd.dex", |
| getpid(), i)); |
| std::unique_ptr<File> tmp_file(OS::CreateEmptyFile(tmp_file_name.c_str())); |
| if (tmp_file.get() == nullptr) { |
| PLOG(ERROR) << "Failed to open file " << tmp_file_name |
| << ". Try: adb shell chmod 777 /data/local/tmp"; |
| continue; |
| } |
| // This is just dumping files for debugging. Ignore errors, and leave remnants. |
| UNUSED(tmp_file->WriteFully(dex_file->Begin(), dex_file->Size())); |
| UNUSED(tmp_file->Flush()); |
| UNUSED(tmp_file->Close()); |
| LOG(INFO) << "Wrote input to " << tmp_file_name; |
| } |
| } |
| |
| bool PrepareRuntimeOptions(RuntimeArgumentMap* runtime_options, |
| QuickCompilerCallbacks* callbacks) { |
| RuntimeOptions raw_options; |
| if (boot_image_filename_.empty()) { |
| std::string boot_class_path = "-Xbootclasspath:"; |
| boot_class_path += android::base::Join(dex_filenames_, ':'); |
| raw_options.push_back(std::make_pair(boot_class_path, nullptr)); |
| std::string boot_class_path_locations = "-Xbootclasspath-locations:"; |
| boot_class_path_locations += android::base::Join(dex_locations_, ':'); |
| raw_options.push_back(std::make_pair(boot_class_path_locations, nullptr)); |
| } else { |
| std::string boot_image_option = "-Ximage:"; |
| boot_image_option += boot_image_filename_; |
| raw_options.push_back(std::make_pair(boot_image_option, nullptr)); |
| } |
| for (size_t i = 0; i < runtime_args_.size(); i++) { |
| raw_options.push_back(std::make_pair(runtime_args_[i], nullptr)); |
| } |
| |
| raw_options.push_back(std::make_pair("compilercallbacks", callbacks)); |
| raw_options.push_back( |
| std::make_pair("imageinstructionset", GetInstructionSetString(instruction_set_))); |
| |
| // Only allow no boot image for the runtime if we're compiling one. When we compile an app, |
| // we don't want fallback mode, it will abort as we do not push a boot classpath (it might |
| // have been stripped in preopting, anyways). |
| if (!IsBootImage()) { |
| raw_options.push_back(std::make_pair("-Xno-dex-file-fallback", nullptr)); |
| } |
| // Never allow implicit image compilation. |
| raw_options.push_back(std::make_pair("-Xnoimage-dex2oat", nullptr)); |
| // Disable libsigchain. We don't don't need it during compilation and it prevents us |
| // from getting a statically linked version of dex2oat (because of dlsym and RTLD_NEXT). |
| raw_options.push_back(std::make_pair("-Xno-sig-chain", nullptr)); |
| // Disable Hspace compaction to save heap size virtual space. |
| // Only need disable Hspace for OOM becasue background collector is equal to |
| // foreground collector by default for dex2oat. |
| raw_options.push_back(std::make_pair("-XX:DisableHSpaceCompactForOOM", nullptr)); |
| |
| if (compiler_options_->IsForceDeterminism()) { |
| // If we're asked to be deterministic, ensure non-concurrent GC for determinism. |
| // |
| // Note that with read barriers, this option is ignored, because Runtime::Init |
| // overrides the foreground GC to be gc::kCollectorTypeCC when instantiating |
| // gc::Heap. This is fine, as concurrent GC requests are not honored in dex2oat, |
| // which uses an unstarted runtime. |
| raw_options.push_back(std::make_pair("-Xgc:nonconcurrent", nullptr)); |
| |
| // The default LOS implementation (map) is not deterministic. So disable it. |
| raw_options.push_back(std::make_pair("-XX:LargeObjectSpace=disabled", nullptr)); |
| |
| // We also need to turn off the nonmoving space. For that, we need to disable HSpace |
| // compaction (done above) and ensure that neither foreground nor background collectors |
| // are concurrent. |
| // |
| // Likewise, this option is ignored with read barriers because Runtime::Init |
| // overrides the background GC to be gc::kCollectorTypeCCBackground, but that's |
| // fine too, for the same reason (see above). |
| raw_options.push_back(std::make_pair("-XX:BackgroundGC=nonconcurrent", nullptr)); |
| |
| // To make identity hashcode deterministic, set a known seed. |
| mirror::Object::SetHashCodeSeed(987654321U); |
| } |
| |
| if (!Runtime::ParseOptions(raw_options, false, runtime_options)) { |
| LOG(ERROR) << "Failed to parse runtime options"; |
| return false; |
| } |
| return true; |
| } |
| |
| // Create a runtime necessary for compilation. |
| bool CreateRuntime(RuntimeArgumentMap&& runtime_options) { |
| TimingLogger::ScopedTiming t_runtime("Create runtime", timings_); |
| if (!Runtime::Create(std::move(runtime_options))) { |
| LOG(ERROR) << "Failed to create runtime"; |
| return false; |
| } |
| |
| // Runtime::Init will rename this thread to be "main". Prefer "dex2oat" so that "top" and |
| // "ps -a" don't change to non-descript "main." |
| SetThreadName(kIsDebugBuild ? "dex2oatd" : "dex2oat"); |
| |
| runtime_.reset(Runtime::Current()); |
| runtime_->SetInstructionSet(instruction_set_); |
| for (uint32_t i = 0; i < static_cast<uint32_t>(CalleeSaveType::kLastCalleeSaveType); ++i) { |
| CalleeSaveType type = CalleeSaveType(i); |
| if (!runtime_->HasCalleeSaveMethod(type)) { |
| runtime_->SetCalleeSaveMethod(runtime_->CreateCalleeSaveMethod(), type); |
| } |
| } |
| |
| // Initialize maps for unstarted runtime. This needs to be here, as running clinits needs this |
| // set up. |
| interpreter::UnstartedRuntime::Initialize(); |
| |
| runtime_->GetClassLinker()->RunRootClinits(); |
| |
| // Runtime::Create acquired the mutator_lock_ that is normally given away when we |
| // Runtime::Start, give it away now so that we don't starve GC. |
| Thread* self = Thread::Current(); |
| self->TransitionFromRunnableToSuspended(kNative); |
| |
| return true; |
| } |
| |
| // Let the ImageWriter write the image files. If we do not compile PIC, also fix up the oat files. |
| bool CreateImageFile() |
| REQUIRES(!Locks::mutator_lock_) { |
| CHECK(image_writer_ != nullptr); |
| if (!IsBootImage()) { |
| CHECK(image_filenames_.empty()); |
| image_filenames_.push_back(app_image_file_name_.c_str()); |
| } |
| if (!image_writer_->Write(app_image_fd_, |
| image_filenames_, |
| oat_filenames_)) { |
| LOG(ERROR) << "Failure during image file creation"; |
| return false; |
| } |
| |
| // We need the OatDataBegin entries. |
| dchecked_vector<uintptr_t> oat_data_begins; |
| for (size_t i = 0, size = oat_filenames_.size(); i != size; ++i) { |
| oat_data_begins.push_back(image_writer_->GetOatDataBegin(i)); |
| } |
| // Destroy ImageWriter before doing FixupElf. |
| image_writer_.reset(); |
| |
| for (size_t i = 0, size = oat_filenames_.size(); i != size; ++i) { |
| const char* oat_filename = oat_filenames_[i]; |
| // Do not fix up the ELF file if we are --compile-pic or compiling the app image |
| if (!compiler_options_->GetCompilePic() && IsBootImage()) { |
| std::unique_ptr<File> oat_file(OS::OpenFileReadWrite(oat_filename)); |
| if (oat_file.get() == nullptr) { |
| PLOG(ERROR) << "Failed to open ELF file: " << oat_filename; |
| return false; |
| } |
| |
| if (!linker::ElfWriter::Fixup(oat_file.get(), oat_data_begins[i])) { |
| oat_file->Erase(); |
| LOG(ERROR) << "Failed to fixup ELF file " << oat_file->GetPath(); |
| return false; |
| } |
| |
| if (oat_file->FlushCloseOrErase()) { |
| PLOG(ERROR) << "Failed to flush and close fixed ELF file " << oat_file->GetPath(); |
| return false; |
| } |
| } |
| } |
| |
| return true; |
| } |
| |
| // Reads the class names (java.lang.Object) and returns a set of descriptors (Ljava/lang/Object;) |
| static std::unordered_set<std::string>* ReadImageClassesFromFile( |
| const char* image_classes_filename) { |
| std::function<std::string(const char*)> process = DotToDescriptor; |
| return ReadCommentedInputFromFile<std::unordered_set<std::string>>(image_classes_filename, |
| &process); |
| } |
| |
| // Reads the class names (java.lang.Object) and returns a set of descriptors (Ljava/lang/Object;) |
| static std::unordered_set<std::string>* ReadImageClassesFromZip( |
| const char* zip_filename, |
| const char* image_classes_filename, |
| std::string* error_msg) { |
| std::function<std::string(const char*)> process = DotToDescriptor; |
| return ReadCommentedInputFromZip<std::unordered_set<std::string>>(zip_filename, |
| image_classes_filename, |
| &process, |
| error_msg); |
| } |
| |
| // Read lines from the given file, dropping comments and empty lines. Post-process each line with |
| // the given function. |
| template <typename T> |
| static T* ReadCommentedInputFromFile( |
| const char* input_filename, std::function<std::string(const char*)>* process) { |
| std::unique_ptr<std::ifstream> input_file(new std::ifstream(input_filename, std::ifstream::in)); |
| if (input_file.get() == nullptr) { |
| LOG(ERROR) << "Failed to open input file " << input_filename; |
| return nullptr; |
| } |
| std::unique_ptr<T> result( |
| ReadCommentedInputStream<T>(*input_file, process)); |
| input_file->close(); |
| return result.release(); |
| } |
| |
| // Read lines from the given file from the given zip file, dropping comments and empty lines. |
| // Post-process each line with the given function. |
| template <typename T> |
| static T* ReadCommentedInputFromZip( |
| const char* zip_filename, |
| const char* input_filename, |
| std::function<std::string(const char*)>* process, |
| std::string* error_msg) { |
| std::unique_ptr<ZipArchive> zip_archive(ZipArchive::Open(zip_filename, error_msg)); |
| if (zip_archive.get() == nullptr) { |
| return nullptr; |
| } |
| std::unique_ptr<ZipEntry> zip_entry(zip_archive->Find(input_filename, error_msg)); |
| if (zip_entry.get() == nullptr) { |
| *error_msg = StringPrintf("Failed to find '%s' within '%s': %s", input_filename, |
| zip_filename, error_msg->c_str()); |
| return nullptr; |
| } |
| std::unique_ptr<MemMap> input_file(zip_entry->ExtractToMemMap(zip_filename, |
| input_filename, |
| error_msg)); |
| if (input_file.get() == nullptr) { |
| *error_msg = StringPrintf("Failed to extract '%s' from '%s': %s", input_filename, |
| zip_filename, error_msg->c_str()); |
| return nullptr; |
| } |
| const std::string input_string(reinterpret_cast<char*>(input_file->Begin()), |
| input_file->Size()); |
| std::istringstream input_stream(input_string); |
| return ReadCommentedInputStream<T>(input_stream, process); |
| } |
| |
| // Read lines from the given stream, dropping comments and empty lines. Post-process each line |
| // with the given function. |
| template <typename T> |
| static T* ReadCommentedInputStream( |
| std::istream& in_stream, |
| std::function<std::string(const char*)>* process) { |
| std::unique_ptr<T> output(new T()); |
| while (in_stream.good()) { |
| std::string dot; |
| std::getline(in_stream, dot); |
| if (android::base::StartsWith(dot, "#") || dot.empty()) { |
| continue; |
| } |
| if (process != nullptr) { |
| std::string descriptor((*process)(dot.c_str())); |
| output->insert(output->end(), descriptor); |
| } else { |
| output->insert(output->end(), dot); |
| } |
| } |
| return output.release(); |
| } |
| |
| void LogCompletionTime() { |
| // Note: when creation of a runtime fails, e.g., when trying to compile an app but when there |
| // is no image, there won't be a Runtime::Current(). |
| // Note: driver creation can fail when loading an invalid dex file. |
| LOG(INFO) << "dex2oat took " |
| << PrettyDuration(NanoTime() - start_ns_) |
| << " (" << PrettyDuration(ProcessCpuNanoTime() - start_cputime_ns_) << " cpu)" |
| << " (threads: " << thread_count_ << ") " |
| << ((Runtime::Current() != nullptr && driver_ != nullptr) ? |
| driver_->GetMemoryUsageString(kIsDebugBuild || VLOG_IS_ON(compiler)) : |
| ""); |
| } |
| |
| std::string StripIsaFrom(const char* image_filename, InstructionSet isa) { |
| std::string res(image_filename); |
| size_t last_slash = res.rfind('/'); |
| if (last_slash == std::string::npos || last_slash == 0) { |
| return res; |
| } |
| size_t penultimate_slash = res.rfind('/', last_slash - 1); |
| if (penultimate_slash == std::string::npos) { |
| return res; |
| } |
| // Check that the string in-between is the expected one. |
| if (res.substr(penultimate_slash + 1, last_slash - penultimate_slash - 1) != |
| GetInstructionSetString(isa)) { |
| LOG(WARNING) << "Unexpected string when trying to strip isa: " << res; |
| return res; |
| } |
| return res.substr(0, penultimate_slash) + res.substr(last_slash); |
| } |
| |
| std::unique_ptr<CompilerOptions> compiler_options_; |
| Compiler::Kind compiler_kind_; |
| |
| InstructionSet instruction_set_; |
| std::unique_ptr<const InstructionSetFeatures> instruction_set_features_; |
| |
| uint32_t image_file_location_oat_checksum_; |
| uintptr_t image_file_location_oat_data_begin_; |
| int32_t image_patch_delta_; |
| std::unique_ptr<SafeMap<std::string, std::string> > key_value_store_; |
| |
| std::unique_ptr<VerificationResults> verification_results_; |
| |
| std::unique_ptr<QuickCompilerCallbacks> callbacks_; |
| |
| std::unique_ptr<Runtime> runtime_; |
| |
| // The spec describing how the class loader should be setup for compilation. |
| std::unique_ptr<ClassLoaderContext> class_loader_context_; |
| |
| size_t thread_count_; |
| uint64_t start_ns_; |
| uint64_t start_cputime_ns_; |
| std::unique_ptr<WatchDog> watchdog_; |
| std::vector<std::unique_ptr<File>> oat_files_; |
| std::vector<std::unique_ptr<File>> vdex_files_; |
| std::string oat_location_; |
| std::vector<const char*> oat_filenames_; |
| std::vector<const char*> oat_unstripped_; |
| int oat_fd_; |
| int input_vdex_fd_; |
| int output_vdex_fd_; |
| std::string input_vdex_; |
| std::string output_vdex_; |
| std::unique_ptr<VdexFile> input_vdex_file_; |
| std::vector<const char*> dex_filenames_; |
| std::vector<const char*> dex_locations_; |
| int zip_fd_; |
| std::string zip_location_; |
| std::string boot_image_filename_; |
| std::vector<const char*> runtime_args_; |
| std::vector<const char*> image_filenames_; |
| uintptr_t image_base_; |
| const char* image_classes_zip_filename_; |
| const char* image_classes_filename_; |
| ImageHeader::StorageMode image_storage_mode_; |
| const char* compiled_classes_zip_filename_; |
| const char* compiled_classes_filename_; |
| const char* compiled_methods_zip_filename_; |
| const char* compiled_methods_filename_; |
| const char* passes_to_run_filename_; |
| const char* dirty_image_objects_filename_; |
| std::unique_ptr<std::unordered_set<std::string>> image_classes_; |
| std::unique_ptr<std::unordered_set<std::string>> compiled_classes_; |
| std::unique_ptr<std::unordered_set<std::string>> compiled_methods_; |
| std::unique_ptr<std::unordered_set<std::string>> dirty_image_objects_; |
| std::unique_ptr<std::vector<std::string>> passes_to_run_; |
| bool multi_image_; |
| bool is_host_; |
| std::string android_root_; |
| // Dex files we are compiling, does not include the class path dex files. |
| std::vector<const DexFile*> dex_files_; |
| std::string no_inline_from_string_; |
| CompactDexLevel compact_dex_level_ = CompactDexLevel::kCompactDexLevelNone; |
| |
| std::vector<std::unique_ptr<linker::ElfWriter>> elf_writers_; |
| std::vector<std::unique_ptr<linker::OatWriter>> oat_writers_; |
| std::vector<linker::OutputStream*> rodata_; |
| std::vector<std::unique_ptr<linker::OutputStream>> vdex_out_; |
| std::unique_ptr<linker::ImageWriter> image_writer_; |
| std::unique_ptr<CompilerDriver> driver_; |
| |
| std::vector<std::unique_ptr<MemMap>> opened_dex_files_maps_; |
| std::vector<std::unique_ptr<const DexFile>> opened_dex_files_; |
| |
| // Note that this might contain pointers owned by class_loader_context_. |
| std::vector<const DexFile*> no_inline_from_dex_files_; |
| |
| bool dump_stats_; |
| bool dump_passes_; |
| bool dump_timing_; |
| bool dump_slow_timing_; |
| bool avoid_storing_invocation_; |
| std::string swap_file_name_; |
| int swap_fd_; |
| size_t min_dex_files_for_swap_ = kDefaultMinDexFilesForSwap; |
| size_t min_dex_file_cumulative_size_for_swap_ = kDefaultMinDexFileCumulativeSizeForSwap; |
| size_t very_large_threshold_ = std::numeric_limits<size_t>::max(); |
| std::string app_image_file_name_; |
| int app_image_fd_; |
| std::string profile_file_; |
| int profile_file_fd_; |
| std::unique_ptr<ProfileCompilationInfo> profile_compilation_info_; |
| TimingLogger* timings_; |
| std::unique_ptr<CumulativeLogger> compiler_phases_timings_; |
| std::vector<std::vector<const DexFile*>> dex_files_per_oat_file_; |
| std::unordered_map<const DexFile*, size_t> dex_file_oat_index_map_; |
| |
| // Backing storage. |
| std::forward_list<std::string> char_backing_storage_; |
| |
| // See CompilerOptions.force_determinism_. |
| bool force_determinism_; |
| |
| // Directory of relative classpaths. |
| std::string classpath_dir_; |
| |
| // Whether the given input vdex is also the output. |
| bool update_input_vdex_ = false; |
| |
| DISALLOW_IMPLICIT_CONSTRUCTORS(Dex2Oat); |
| }; |
| |
| static void b13564922() { |
| #if defined(__linux__) && defined(__arm__) |
| int major, minor; |
| struct utsname uts; |
| if (uname(&uts) != -1 && |
| sscanf(uts.release, "%d.%d", &major, &minor) == 2 && |
| ((major < 3) || ((major == 3) && (minor < 4)))) { |
| // Kernels before 3.4 don't handle the ASLR well and we can run out of address |
| // space (http://b/13564922). Work around the issue by inhibiting further mmap() randomization. |
| int old_personality = personality(0xffffffff); |
| if ((old_personality & ADDR_NO_RANDOMIZE) == 0) { |
| int new_personality = personality(old_personality | ADDR_NO_RANDOMIZE); |
| if (new_personality == -1) { |
| LOG(WARNING) << "personality(. | ADDR_NO_RANDOMIZE) failed."; |
| } |
| } |
| } |
| #endif |
| } |
| |
| class ScopedGlobalRef { |
| public: |
| explicit ScopedGlobalRef(jobject obj) : obj_(obj) {} |
| ~ScopedGlobalRef() { |
| if (obj_ != nullptr) { |
| ScopedObjectAccess soa(Thread::Current()); |
| soa.Env()->vm->DeleteGlobalRef(soa.Self(), obj_); |
| } |
| } |
| |
| private: |
| jobject obj_; |
| }; |
| |
| static dex2oat::ReturnCode CompileImage(Dex2Oat& dex2oat) { |
| dex2oat.LoadClassProfileDescriptors(); |
| // Keep the class loader that was used for compilation live for the rest of the compilation |
| // process. |
| ScopedGlobalRef class_loader(dex2oat.Compile()); |
| |
| if (!dex2oat.WriteOutputFiles()) { |
| dex2oat.EraseOutputFiles(); |
| return dex2oat::ReturnCode::kOther; |
| } |
| |
| // Flush boot.oat. We always expect the output file by name, and it will be re-opened from the |
| // unstripped name. Do not close the file if we are compiling the image with an oat fd since the |
| // image writer will require this fd to generate the image. |
| if (dex2oat.ShouldKeepOatFileOpen()) { |
| if (!dex2oat.FlushOutputFiles()) { |
| dex2oat.EraseOutputFiles(); |
| return dex2oat::ReturnCode::kOther; |
| } |
| } else if (!dex2oat.FlushCloseOutputFiles()) { |
| return dex2oat::ReturnCode::kOther; |
| } |
| |
| // Creates the boot.art and patches the oat files. |
| if (!dex2oat.HandleImage()) { |
| return dex2oat::ReturnCode::kOther; |
| } |
| |
| // When given --host, finish early without stripping. |
| if (dex2oat.IsHost()) { |
| if (!dex2oat.FlushCloseOutputFiles()) { |
| return dex2oat::ReturnCode::kOther; |
| } |
| dex2oat.DumpTiming(); |
| return dex2oat::ReturnCode::kNoFailure; |
| } |
| |
| // Copy stripped to unstripped location, if necessary. |
| if (!dex2oat.CopyStrippedToUnstripped()) { |
| return dex2oat::ReturnCode::kOther; |
| } |
| |
| // FlushClose again, as stripping might have re-opened the oat files. |
| if (!dex2oat.FlushCloseOutputFiles()) { |
| return dex2oat::ReturnCode::kOther; |
| } |
| |
| dex2oat.DumpTiming(); |
| return dex2oat::ReturnCode::kNoFailure; |
| } |
| |
| static dex2oat::ReturnCode CompileApp(Dex2Oat& dex2oat) { |
| // Keep the class loader that was used for compilation live for the rest of the compilation |
| // process. |
| ScopedGlobalRef class_loader(dex2oat.Compile()); |
| |
| if (!dex2oat.WriteOutputFiles()) { |
| dex2oat.EraseOutputFiles(); |
| return dex2oat::ReturnCode::kOther; |
| } |
| |
| // Do not close the oat files here. We might have gotten the output file by file descriptor, |
| // which we would lose. |
| |
| // When given --host, finish early without stripping. |
| if (dex2oat.IsHost()) { |
| if (!dex2oat.FlushCloseOutputFiles()) { |
| return dex2oat::ReturnCode::kOther; |
| } |
| |
| dex2oat.DumpTiming(); |
| return dex2oat::ReturnCode::kNoFailure; |
| } |
| |
| // Copy stripped to unstripped location, if necessary. This will implicitly flush & close the |
| // stripped versions. If this is given, we expect to be able to open writable files by name. |
| if (!dex2oat.CopyStrippedToUnstripped()) { |
| return dex2oat::ReturnCode::kOther; |
| } |
| |
| // Flush and close the files. |
| if (!dex2oat.FlushCloseOutputFiles()) { |
| return dex2oat::ReturnCode::kOther; |
| } |
| |
| dex2oat.DumpTiming(); |
| return dex2oat::ReturnCode::kNoFailure; |
| } |
| |
| static dex2oat::ReturnCode Dex2oat(int argc, char** argv) { |
| b13564922(); |
| |
| TimingLogger timings("compiler", false, false); |
| |
| // Allocate `dex2oat` on the heap instead of on the stack, as Clang |
| // might produce a stack frame too large for this function or for |
| // functions inlining it (such as main), that would not fit the |
| // requirements of the `-Wframe-larger-than` option. |
| std::unique_ptr<Dex2Oat> dex2oat = std::make_unique<Dex2Oat>(&timings); |
| |
| // Parse arguments. Argument mistakes will lead to exit(EXIT_FAILURE) in UsageError. |
| dex2oat->ParseArgs(argc, argv); |
| |
| // If needed, process profile information for profile guided compilation. |
| // This operation involves I/O. |
| if (dex2oat->UseProfile()) { |
| if (!dex2oat->LoadProfile()) { |
| LOG(ERROR) << "Failed to process profile file"; |
| return dex2oat::ReturnCode::kOther; |
| } |
| } |
| |
| art::MemMap::Init(); // For ZipEntry::ExtractToMemMap, and vdex. |
| |
| // Check early that the result of compilation can be written |
| if (!dex2oat->OpenFile()) { |
| return dex2oat::ReturnCode::kOther; |
| } |
| |
| // Print the complete line when any of the following is true: |
| // 1) Debug build |
| // 2) Compiling an image |
| // 3) Compiling with --host |
| // 4) Compiling on the host (not a target build) |
| // Otherwise, print a stripped command line. |
| if (kIsDebugBuild || dex2oat->IsBootImage() || dex2oat->IsHost() || !kIsTargetBuild) { |
| LOG(INFO) << CommandLine(); |
| } else { |
| LOG(INFO) << StrippedCommandLine(); |
| } |
| |
| dex2oat::ReturnCode setup_code = dex2oat->Setup(); |
| if (setup_code != dex2oat::ReturnCode::kNoFailure) { |
| dex2oat->EraseOutputFiles(); |
| return setup_code; |
| } |
| |
| // TODO: Due to the cyclic dependencies, profile loading and verifying are |
| // being done separately. Refactor and place the two next to each other. |
| // If verification fails, we don't abort the compilation and instead log an |
| // error. |
| // TODO(b/62602192, b/65260586): We should consider aborting compilation when |
| // the profile verification fails. |
| // Note: If dex2oat fails, installd will remove the oat files causing the app |
| // to fallback to apk with possible in-memory extraction. We want to avoid |
| // that, and thus we're lenient towards profile corruptions. |
| if (dex2oat->UseProfile()) { |
| dex2oat->VerifyProfileData(); |
| } |
| |
| // Helps debugging on device. Can be used to determine which dalvikvm instance invoked a dex2oat |
| // instance. Used by tools/bisection_search/bisection_search.py. |
| VLOG(compiler) << "Running dex2oat (parent PID = " << getppid() << ")"; |
| |
| dex2oat::ReturnCode result; |
| if (dex2oat->IsImage()) { |
| result = CompileImage(*dex2oat); |
| } else { |
| result = CompileApp(*dex2oat); |
| } |
| |
| return result; |
| } |
| } // namespace art |
| |
| int main(int argc, char** argv) { |
| int result = static_cast<int>(art::Dex2oat(argc, argv)); |
| // Everything was done, do an explicit exit here to avoid running Runtime destructors that take |
| // time (bug 10645725) unless we're a debug build or running on valgrind. Note: The Dex2Oat class |
| // should not destruct the runtime in this case. |
| if (!art::kIsDebugBuild && (RUNNING_ON_MEMORY_TOOL == 0)) { |
| _exit(result); |
| } |
| return result; |
| } |