odrefresh/odr_config.h - LeafOS-Project/android_art - Gitiles

 /*
  * Copyright (C) 2021 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.
  */

 #ifndef ART_ODREFRESH_ODR_CONFIG_H_
 #define ART_ODREFRESH_ODR_CONFIG_H_

 #include <algorithm>
 #include <optional>
 #include <string>
 #include <unordered_map>
 #include <unordered_set>
 #include <vector>

 #include "android-base/file.h"
 #include "android-base/no_destructor.h"
 #include "android-base/strings.h"
 #include "arch/instruction_set.h"
 #include "base/file_utils.h"
 #include "base/globals.h"
 #include "log/log.h"
 #include "odr_common.h"
 #include "odrefresh/odrefresh.h"

 namespace art {
 namespace odrefresh {

 // The prefixes of system properties that odrefresh keeps track of. Odrefresh will recompile
 // everything if any property matching a prefix changes.
 constexpr const char* kCheckedSystemPropertyPrefixes[]{"dalvik.vm.", "ro.dalvik.vm."};

 // The list of system properties that odrefresh ignores. They don't affect compilation results.
 const std::unordered_set<std::string> kIgnoredSystemProperties{
     "dalvik.vm.dex2oat-cpu-set",
     "dalvik.vm.dex2oat-threads",
     "dalvik.vm.boot-dex2oat-cpu-set",
     "dalvik.vm.boot-dex2oat-threads",
     "dalvik.vm.restore-dex2oat-cpu-set",
     "dalvik.vm.restore-dex2oat-threads",
     "dalvik.vm.background-dex2oat-cpu-set",
     "dalvik.vm.background-dex2oat-threads"};

 struct SystemPropertyConfig {
   const char* name;
   const char* default_value;
 };

 // The system properties that odrefresh keeps track of, in addition to the ones matching the
 // prefixes in `kCheckedSystemPropertyPrefixes`. Odrefresh will recompile everything if any property
 // changes.
 // All phenotype flags under the `runtime_native_boot` namespace that affects the compiler's
 // behavior must be explicitly listed below. We cannot use a prefix to match all phenotype flags
 // because a default value is required for each flag. Changing the flag value from empty to the
 // default value should not trigger re-compilation. This is to comply with the phenotype flag
 // requirement (go/platform-experiments-flags#pre-requisites).
 const android::base::NoDestructor<std::vector<SystemPropertyConfig>> kSystemProperties{
     {SystemPropertyConfig{.name = "persist.device_config.runtime_native_boot.enable_uffd_gc",
                           .default_value = "false"}}};

 // An enumeration of the possible zygote configurations on Android.
 enum class ZygoteKind : uint8_t {
   // 32-bit primary zygote, no secondary zygote.
   kZygote32 = 0,
   // 32-bit primary zygote, 64-bit secondary zygote.
   kZygote32_64 = 1,
   // 64-bit primary zygote, 32-bit secondary zygote.
   kZygote64_32 = 2,
   // 64-bit primary zygote, no secondary zygote.
   kZygote64 = 3
 };

 // Configuration class for odrefresh. Exists to enable abstracting environment variables and
 // system properties into a configuration class for development and testing purposes.
 class OdrConfig final {
  private:
   std::string apex_info_list_file_;
   std::string art_bin_dir_;
   std::string dex2oat_;
   std::string dex2oat_boot_classpath_;
   bool dry_run_;
   std::optional<bool> refresh_;
   std::optional<bool> partial_compilation_;
   InstructionSet isa_;
   std::string program_name_;
   std::string system_server_classpath_;
   std::string boot_image_compiler_filter_;
   std::string system_server_compiler_filter_;
   ZygoteKind zygote_kind_;
   std::string boot_classpath_;
   std::string artifact_dir_;
   std::string standalone_system_server_jars_;
   bool compilation_os_mode_ = false;
   bool minimal_ = false;

   // The current values of system properties listed in `kSystemProperties`.
   std::unordered_map<std::string, std::string> system_properties_;

   // Staging directory for artifacts. The directory must exist and will be automatically removed
   // after compilation. If empty, use the default directory.
   std::string staging_dir_;

  public:
   explicit OdrConfig(const char* program_name)
     : dry_run_(false),
       isa_(InstructionSet::kNone),
       program_name_(android::base::Basename(program_name)),
       artifact_dir_(GetApexDataDalvikCacheDirectory(InstructionSet::kNone)) {
   }

   const std::string& GetApexInfoListFile() const { return apex_info_list_file_; }

   std::vector<InstructionSet> GetBootClasspathIsas() const {
     const auto [isa32, isa64] = GetPotentialInstructionSets();
     switch (zygote_kind_) {
       case ZygoteKind::kZygote32:
         return {isa32};
       case ZygoteKind::kZygote32_64:
       case ZygoteKind::kZygote64_32:
         return {isa32, isa64};
       case ZygoteKind::kZygote64:
         return {isa64};
     }
   }

   InstructionSet GetSystemServerIsa() const {
     const auto [isa32, isa64] = GetPotentialInstructionSets();
     switch (zygote_kind_) {
       case ZygoteKind::kZygote32:
       case ZygoteKind::kZygote32_64:
         return isa32;
       case ZygoteKind::kZygote64_32:
       case ZygoteKind::kZygote64:
         return isa64;
     }
   }

   const std::string& GetDex2oatBootClasspath() const { return dex2oat_boot_classpath_; }

   const std::string& GetArtifactDirectory() const { return artifact_dir_; }

   std::string GetDex2Oat() const {
     const char* prefix = UseDebugBinaries() ? "dex2oatd" : "dex2oat";
     const char* suffix = "";
     if (kIsTargetBuild) {
       switch (zygote_kind_) {
         case ZygoteKind::kZygote32:
           suffix = "32";
           break;
         case ZygoteKind::kZygote32_64:
         case ZygoteKind::kZygote64_32:
         case ZygoteKind::kZygote64:
           suffix = "64";
           break;
       }
     }
     return art_bin_dir_ + '/' + prefix + suffix;
   }

   bool GetDryRun() const { return dry_run_; }
   bool HasPartialCompilation() const {
     return partial_compilation_.has_value();
   }
   bool GetPartialCompilation() const {
     return partial_compilation_.value_or(true);
   }
   bool GetRefresh() const {
     return refresh_.value_or(true);
   }
   const std::string& GetSystemServerClasspath() const {
     return system_server_classpath_;
   }
   const std::string& GetBootImageCompilerFilter() const {
     return boot_image_compiler_filter_;
   }
   const std::string& GetSystemServerCompilerFilter() const {
     return system_server_compiler_filter_;
   }
   const std::string& GetStagingDir() const {
     return staging_dir_;
   }
   bool GetCompilationOsMode() const { return compilation_os_mode_; }
   bool GetMinimal() const { return minimal_; }
   const std::unordered_map<std::string, std::string>& GetSystemProperties() const {
     return system_properties_;
   }

   void SetApexInfoListFile(const std::string& file_path) { apex_info_list_file_ = file_path; }
   void SetArtBinDir(const std::string& art_bin_dir) { art_bin_dir_ = art_bin_dir; }

   void SetDex2oatBootclasspath(const std::string& classpath) {
     dex2oat_boot_classpath_ = classpath;
   }

   void SetArtifactDirectory(const std::string& artifact_dir) {
     artifact_dir_ = artifact_dir;
   }

   void SetDryRun() { dry_run_ = true; }
   void SetPartialCompilation(bool value) {
     partial_compilation_ = value;
   }
   void SetRefresh(bool value) {
     refresh_ = value;
   }
   void SetIsa(const InstructionSet isa) { isa_ = isa; }

   void SetSystemServerClasspath(const std::string& classpath) {
     system_server_classpath_ = classpath;
   }

   void SetBootImageCompilerFilter(const std::string& filter) {
     boot_image_compiler_filter_ = filter;
   }
   void SetSystemServerCompilerFilter(const std::string& filter) {
     system_server_compiler_filter_ = filter;
   }

   void SetZygoteKind(ZygoteKind zygote_kind) { zygote_kind_ = zygote_kind; }

   const std::string& GetBootClasspath() const { return boot_classpath_; }

   void SetBootClasspath(const std::string& classpath) { boot_classpath_ = classpath; }

   void SetStagingDir(const std::string& staging_dir) {
     staging_dir_ = staging_dir;
   }

   const std::string& GetStandaloneSystemServerJars() const {
     return standalone_system_server_jars_;
   }

   void SetStandaloneSystemServerJars(const std::string& jars) {
     standalone_system_server_jars_ = jars;
   }

   void SetCompilationOsMode(bool value) { compilation_os_mode_ = value; }

   void SetMinimal(bool value) { minimal_ = value; }

   std::unordered_map<std::string, std::string>* MutableSystemProperties() {
     return &system_properties_;
   }

  private:
   // Returns a pair for the possible instruction sets for the configured instruction set
   // architecture. The first item is the 32-bit architecture and the second item is the 64-bit
   // architecture. The current `isa` is based on `kRuntimeISA` on target, odrefresh is compiled
   // 32-bit by default so this method returns all options which are finessed based on the
   // `ro.zygote` property.
   std::pair<InstructionSet, InstructionSet> GetPotentialInstructionSets() const {
     switch (isa_) {
       case art::InstructionSet::kArm:
       case art::InstructionSet::kArm64:
         return std::make_pair(art::InstructionSet::kArm, art::InstructionSet::kArm64);
       case art::InstructionSet::kX86:
       case art::InstructionSet::kX86_64:
         return std::make_pair(art::InstructionSet::kX86, art::InstructionSet::kX86_64);
       case art::InstructionSet::kThumb2:
       case art::InstructionSet::kNone:
         LOG(FATAL) << "Invalid instruction set " << isa_;
         return std::make_pair(art::InstructionSet::kNone, art::InstructionSet::kNone);
     }
   }

   bool UseDebugBinaries() const { return program_name_ == "odrefreshd"; }

   OdrConfig() = delete;
   OdrConfig(const OdrConfig&) = delete;
   OdrConfig& operator=(const OdrConfig&) = delete;
 };

 }  // namespace odrefresh
 }  // namespace art

 #endif  // ART_ODREFRESH_ODR_CONFIG_H_
	/*
	* Copyright (C) 2021 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.
	*/

	#ifndef ART_ODREFRESH_ODR_CONFIG_H_
	#define ART_ODREFRESH_ODR_CONFIG_H_

	#include <algorithm>
	#include <optional>
	#include <string>
	#include <unordered_map>
	#include <unordered_set>
	#include <vector>

	#include "android-base/file.h"
	#include "android-base/no_destructor.h"
	#include "android-base/strings.h"
	#include "arch/instruction_set.h"
	#include "base/file_utils.h"
	#include "base/globals.h"
	#include "log/log.h"
	#include "odr_common.h"
	#include "odrefresh/odrefresh.h"

	namespace art {
	namespace odrefresh {

	// The prefixes of system properties that odrefresh keeps track of. Odrefresh will recompile
	// everything if any property matching a prefix changes.
	constexpr const char* kCheckedSystemPropertyPrefixes[]{"dalvik.vm.", "ro.dalvik.vm."};

	// The list of system properties that odrefresh ignores. They don't affect compilation results.
	const std::unordered_set<std::string> kIgnoredSystemProperties{
	"dalvik.vm.dex2oat-cpu-set",
	"dalvik.vm.dex2oat-threads",
	"dalvik.vm.boot-dex2oat-cpu-set",
	"dalvik.vm.boot-dex2oat-threads",
	"dalvik.vm.restore-dex2oat-cpu-set",
	"dalvik.vm.restore-dex2oat-threads",
	"dalvik.vm.background-dex2oat-cpu-set",
	"dalvik.vm.background-dex2oat-threads"};

	struct SystemPropertyConfig {
	const char* name;
	const char* default_value;
	};

	// The system properties that odrefresh keeps track of, in addition to the ones matching the
	// prefixes in `kCheckedSystemPropertyPrefixes`. Odrefresh will recompile everything if any property
	// changes.
	// All phenotype flags under the `runtime_native_boot` namespace that affects the compiler's
	// behavior must be explicitly listed below. We cannot use a prefix to match all phenotype flags
	// because a default value is required for each flag. Changing the flag value from empty to the
	// default value should not trigger re-compilation. This is to comply with the phenotype flag
	// requirement (go/platform-experiments-flags#pre-requisites).
	const android::base::NoDestructor<std::vector<SystemPropertyConfig>> kSystemProperties{
	{SystemPropertyConfig{.name = "persist.device_config.runtime_native_boot.enable_uffd_gc",
	.default_value = "false"}}};

	// An enumeration of the possible zygote configurations on Android.
	enum class ZygoteKind : uint8_t {
	// 32-bit primary zygote, no secondary zygote.
	kZygote32 = 0,
	// 32-bit primary zygote, 64-bit secondary zygote.
	kZygote32_64 = 1,
	// 64-bit primary zygote, 32-bit secondary zygote.
	kZygote64_32 = 2,
	// 64-bit primary zygote, no secondary zygote.
	kZygote64 = 3
	};

	// Configuration class for odrefresh. Exists to enable abstracting environment variables and
	// system properties into a configuration class for development and testing purposes.
	class OdrConfig final {
	private:
	std::string apex_info_list_file_;
	std::string art_bin_dir_;
	std::string dex2oat_;
	std::string dex2oat_boot_classpath_;
	bool dry_run_;
	std::optional<bool> refresh_;
	std::optional<bool> partial_compilation_;
	InstructionSet isa_;
	std::string program_name_;
	std::string system_server_classpath_;
	std::string boot_image_compiler_filter_;
	std::string system_server_compiler_filter_;
	ZygoteKind zygote_kind_;
	std::string boot_classpath_;
	std::string artifact_dir_;
	std::string standalone_system_server_jars_;
	bool compilation_os_mode_ = false;
	bool minimal_ = false;

	// The current values of system properties listed in `kSystemProperties`.
	std::unordered_map<std::string, std::string> system_properties_;

	// Staging directory for artifacts. The directory must exist and will be automatically removed
	// after compilation. If empty, use the default directory.
	std::string staging_dir_;

	public:
	explicit OdrConfig(const char* program_name)
	: dry_run_(false),
	isa_(InstructionSet::kNone),
	program_name_(android::base::Basename(program_name)),
	artifact_dir_(GetApexDataDalvikCacheDirectory(InstructionSet::kNone)) {
	}

	const std::string& GetApexInfoListFile() const { return apex_info_list_file_; }

	std::vector<InstructionSet> GetBootClasspathIsas() const {
	const auto [isa32, isa64] = GetPotentialInstructionSets();
	switch (zygote_kind_) {
	case ZygoteKind::kZygote32:
	return {isa32};
	case ZygoteKind::kZygote32_64:
	case ZygoteKind::kZygote64_32:
	return {isa32, isa64};
	case ZygoteKind::kZygote64:
	return {isa64};
	}
	}

	InstructionSet GetSystemServerIsa() const {
	const auto [isa32, isa64] = GetPotentialInstructionSets();
	switch (zygote_kind_) {
	case ZygoteKind::kZygote32:
	case ZygoteKind::kZygote32_64:
	return isa32;
	case ZygoteKind::kZygote64_32:
	case ZygoteKind::kZygote64:
	return isa64;
	}
	}

	const std::string& GetDex2oatBootClasspath() const { return dex2oat_boot_classpath_; }

	const std::string& GetArtifactDirectory() const { return artifact_dir_; }

	std::string GetDex2Oat() const {
	const char* prefix = UseDebugBinaries() ? "dex2oatd" : "dex2oat";
	const char* suffix = "";
	if (kIsTargetBuild) {
	switch (zygote_kind_) {
	case ZygoteKind::kZygote32:
	suffix = "32";
	break;
	case ZygoteKind::kZygote32_64:
	case ZygoteKind::kZygote64_32:
	case ZygoteKind::kZygote64:
	suffix = "64";
	break;
	}
	}
	return art_bin_dir_ + '/' + prefix + suffix;
	}

	bool GetDryRun() const { return dry_run_; }
	bool HasPartialCompilation() const {
	return partial_compilation_.has_value();
	}
	bool GetPartialCompilation() const {
	return partial_compilation_.value_or(true);
	}
	bool GetRefresh() const {
	return refresh_.value_or(true);
	}
	const std::string& GetSystemServerClasspath() const {
	return system_server_classpath_;
	}
	const std::string& GetBootImageCompilerFilter() const {
	return boot_image_compiler_filter_;
	}
	const std::string& GetSystemServerCompilerFilter() const {
	return system_server_compiler_filter_;
	}
	const std::string& GetStagingDir() const {
	return staging_dir_;
	}
	bool GetCompilationOsMode() const { return compilation_os_mode_; }
	bool GetMinimal() const { return minimal_; }
	const std::unordered_map<std::string, std::string>& GetSystemProperties() const {
	return system_properties_;
	}

	void SetApexInfoListFile(const std::string& file_path) { apex_info_list_file_ = file_path; }
	void SetArtBinDir(const std::string& art_bin_dir) { art_bin_dir_ = art_bin_dir; }

	void SetDex2oatBootclasspath(const std::string& classpath) {
	dex2oat_boot_classpath_ = classpath;
	}

	void SetArtifactDirectory(const std::string& artifact_dir) {
	artifact_dir_ = artifact_dir;
	}

	void SetDryRun() { dry_run_ = true; }
	void SetPartialCompilation(bool value) {
	partial_compilation_ = value;
	}
	void SetRefresh(bool value) {
	refresh_ = value;
	}
	void SetIsa(const InstructionSet isa) { isa_ = isa; }

	void SetSystemServerClasspath(const std::string& classpath) {
	system_server_classpath_ = classpath;
	}

	void SetBootImageCompilerFilter(const std::string& filter) {
	boot_image_compiler_filter_ = filter;
	}
	void SetSystemServerCompilerFilter(const std::string& filter) {
	system_server_compiler_filter_ = filter;
	}

	void SetZygoteKind(ZygoteKind zygote_kind) { zygote_kind_ = zygote_kind; }

	const std::string& GetBootClasspath() const { return boot_classpath_; }

	void SetBootClasspath(const std::string& classpath) { boot_classpath_ = classpath; }

	void SetStagingDir(const std::string& staging_dir) {
	staging_dir_ = staging_dir;
	}

	const std::string& GetStandaloneSystemServerJars() const {
	return standalone_system_server_jars_;
	}

	void SetStandaloneSystemServerJars(const std::string& jars) {
	standalone_system_server_jars_ = jars;
	}

	void SetCompilationOsMode(bool value) { compilation_os_mode_ = value; }

	void SetMinimal(bool value) { minimal_ = value; }

	std::unordered_map<std::string, std::string>* MutableSystemProperties() {
	return &system_properties_;
	}

	private:
	// Returns a pair for the possible instruction sets for the configured instruction set
	// architecture. The first item is the 32-bit architecture and the second item is the 64-bit
	// architecture. The current `isa` is based on `kRuntimeISA` on target, odrefresh is compiled
	// 32-bit by default so this method returns all options which are finessed based on the
	// `ro.zygote` property.
	std::pair<InstructionSet, InstructionSet> GetPotentialInstructionSets() const {
	switch (isa_) {
	case art::InstructionSet::kArm:
	case art::InstructionSet::kArm64:
	return std::make_pair(art::InstructionSet::kArm, art::InstructionSet::kArm64);
	case art::InstructionSet::kX86:
	case art::InstructionSet::kX86_64:
	return std::make_pair(art::InstructionSet::kX86, art::InstructionSet::kX86_64);
	case art::InstructionSet::kThumb2:
	case art::InstructionSet::kNone:
	LOG(FATAL) << "Invalid instruction set " << isa_;
	return std::make_pair(art::InstructionSet::kNone, art::InstructionSet::kNone);
	}
	}

	bool UseDebugBinaries() const { return program_name_ == "odrefreshd"; }

	OdrConfig() = delete;
	OdrConfig(const OdrConfig&) = delete;
	OdrConfig& operator=(const OdrConfig&) = delete;
	};

	} // namespace odrefresh
	} // namespace art

	#endif // ART_ODREFRESH_ODR_CONFIG_H_