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86 lines
3.5 KiB
86 lines
3.5 KiB
/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ART_PROFMAN_BOOT_IMAGE_PROFILE_H_
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#define ART_PROFMAN_BOOT_IMAGE_PROFILE_H_
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#include <limits>
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#include <memory>
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#include <vector>
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#include <set>
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#include "base/safe_map.h"
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#include "dex/dex_file.h"
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namespace art {
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class ProfileCompilationInfo;
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struct BootImageOptions {
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public:
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// Threshold for preloaded. The threshold specifies, as percentage
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// of maximum number or aggregations, how many different profiles need to have the class
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// before it gets added to the list of preloaded classes.
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uint32_t preloaded_class_threshold = 10;
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// Threshold for classes that may be dirty or clean. The threshold specifies, as percentage
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// of maximum number or aggregations, how many different profiles need to have the class
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// before it gets added to the boot profile.
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uint32_t image_class_threshold = 10;
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// Threshold for classes that are likely to remain clean. The threshold specifies, as percentage
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// of maximum number or aggregations, how many different profiles need to have the class
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// before it gets added to the boot profile.
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uint32_t image_class_clean_threshold = 5;
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// Threshold for including a method in the profile. The threshold specifies, as percentage
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// of maximum number or aggregations, how many different profiles need to have the method
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// before it gets added to the boot profile.
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uint32_t method_threshold = 10;
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// Whether or not we should upgrade the startup methods to hot.
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bool upgrade_startup_to_hot = true;
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// A special set of thresholds (classes and methods) that apply if a method/class is being used
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// by a special package. This can be used to lower the thresholds for methods used by important
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// packages (e.g. system server of system ui) or packages which have special needs (e.g. camera
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// needs more hardware methods).
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SafeMap<std::string, uint32_t> special_packages_thresholds;
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// Whether or not to append package use list to each profile element.
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// Should be use only for debugging as it will add additional elements to the text output
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// that are not compatible with the default profile format.
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bool append_package_use_list = false;
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// The set of classes that should not be preloaded in Zygote
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std::set<std::string> preloaded_classes_denylist;
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};
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// Generate a boot image profile according to the specified options.
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// Boot classpaths dex files are identified by the given vector and the output is
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// written to the two specified paths. The paths will be open with O_CREAT | O_WRONLY.
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// Returns true if the generation was successful, false otherwise.
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bool GenerateBootImageProfile(
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const std::vector<std::unique_ptr<const DexFile>>& dex_files,
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const std::vector<std::string>& profile_files,
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const BootImageOptions& options,
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const std::string& boot_profile_out_path,
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const std::string& preloaded_classes_out_path);
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} // namespace art
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#endif // ART_PROFMAN_BOOT_IMAGE_PROFILE_H_
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