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- /*
- * Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
- *
- * SPDX-License-Identifier: BSD-2-Clause
- */
- #include "IndividualSampleModel.h"
- #include "Profile.h"
- #include "TimelineContainer.h"
- #include "TimelineHeader.h"
- #include "TimelineTrack.h"
- #include "TimelineView.h"
- #include <LibCore/ArgsParser.h>
- #include <LibCore/ElapsedTimer.h>
- #include <LibCore/EventLoop.h>
- #include <LibCore/ProcessStatisticsReader.h>
- #include <LibCore/Timer.h>
- #include <LibDesktop/Launcher.h>
- #include <LibGUI/Action.h>
- #include <LibGUI/Application.h>
- #include <LibGUI/BoxLayout.h>
- #include <LibGUI/Button.h>
- #include <LibGUI/Label.h>
- #include <LibGUI/Menu.h>
- #include <LibGUI/Menubar.h>
- #include <LibGUI/MessageBox.h>
- #include <LibGUI/Model.h>
- #include <LibGUI/ProcessChooser.h>
- #include <LibGUI/Splitter.h>
- #include <LibGUI/Statusbar.h>
- #include <LibGUI/TabWidget.h>
- #include <LibGUI/TableView.h>
- #include <LibGUI/TreeView.h>
- #include <LibGUI/Window.h>
- #include <serenity.h>
- #include <string.h>
- using namespace Profiler;
- static bool generate_profile(pid_t& pid);
- int main(int argc, char** argv)
- {
- int pid = 0;
- const char* perfcore_file_arg = nullptr;
- Core::ArgsParser args_parser;
- args_parser.add_option(pid, "PID to profile", "pid", 'p', "PID");
- args_parser.add_positional_argument(perfcore_file_arg, "Path of perfcore file", "perfcore-file", Core::ArgsParser::Required::No);
- args_parser.parse(argc, argv);
- if (pid && perfcore_file_arg) {
- warnln("-p/--pid option and perfcore-file argument must not be used together!");
- return 1;
- }
- auto app = GUI::Application::construct(argc, argv);
- auto app_icon = GUI::Icon::default_icon("app-profiler");
- String perfcore_file;
- if (!perfcore_file_arg) {
- if (!generate_profile(pid))
- return 0;
- perfcore_file = String::formatted("/proc/{}/perf_events", pid);
- } else {
- perfcore_file = perfcore_file_arg;
- }
- auto profile_or_error = Profile::load_from_perfcore_file(perfcore_file);
- if (profile_or_error.is_error()) {
- GUI::MessageBox::show(nullptr, profile_or_error.error(), "Profiler", GUI::MessageBox::Type::Error);
- return 0;
- }
- auto& profile = profile_or_error.value();
- auto window = GUI::Window::construct();
- if (!Desktop::Launcher::add_allowed_handler_with_only_specific_urls(
- "/bin/Help",
- { URL::create_with_file_protocol("/usr/share/man/man1/Profiler.md") })
- || !Desktop::Launcher::seal_allowlist()) {
- warnln("Failed to set up allowed launch URLs");
- return 1;
- }
- window->set_title("Profiler");
- window->set_icon(app_icon.bitmap_for_size(16));
- window->resize(800, 600);
- auto& main_widget = window->set_main_widget<GUI::Widget>();
- main_widget.set_fill_with_background_color(true);
- main_widget.set_layout<GUI::VerticalBoxLayout>();
- auto timeline_header_container = GUI::Widget::construct();
- timeline_header_container->set_layout<GUI::VerticalBoxLayout>();
- timeline_header_container->set_fill_with_background_color(true);
- timeline_header_container->set_shrink_to_fit(true);
- auto timeline_view = TimelineView::construct();
- for (auto& process : profile->processes()) {
- bool matching_event_found = false;
- for (auto& event : profile->events()) {
- if (event.pid == process.pid && process.valid_at(event.timestamp)) {
- matching_event_found = true;
- break;
- }
- }
- if (!matching_event_found)
- continue;
- auto& timeline_header = timeline_header_container->add<TimelineHeader>(*profile, process);
- timeline_header.set_shrink_to_fit(true);
- timeline_header.on_selection_change = [&](bool selected) {
- if (selected) {
- auto end_valid = process.end_valid == 0 ? profile->last_timestamp() : process.end_valid;
- profile->set_process_filter(process.pid, process.start_valid, end_valid);
- } else
- profile->clear_process_filter();
- timeline_header_container->for_each_child_widget([](auto& other_timeline_header) {
- static_cast<TimelineHeader&>(other_timeline_header).update_selection();
- return IterationDecision::Continue;
- });
- };
- timeline_view->add<TimelineTrack>(*timeline_view, *profile, process);
- }
- auto& main_splitter = main_widget.add<GUI::VerticalSplitter>();
- [[maybe_unused]] auto& timeline_container = main_splitter.add<TimelineContainer>(*timeline_header_container, *timeline_view);
- auto& tab_widget = main_splitter.add<GUI::TabWidget>();
- auto& tree_tab = tab_widget.add_tab<GUI::Widget>("Call Tree");
- tree_tab.set_layout<GUI::VerticalBoxLayout>();
- tree_tab.layout()->set_margins({ 4, 4, 4, 4 });
- auto& bottom_splitter = tree_tab.add<GUI::VerticalSplitter>();
- auto& tree_view = bottom_splitter.add<GUI::TreeView>();
- tree_view.set_should_fill_selected_rows(true);
- tree_view.set_column_headers_visible(true);
- tree_view.set_model(profile->model());
- auto& disassembly_view = bottom_splitter.add<GUI::TableView>();
- tree_view.on_selection = [&](auto& index) {
- profile->set_disassembly_index(index);
- disassembly_view.set_model(profile->disassembly_model());
- };
- auto& samples_tab = tab_widget.add_tab<GUI::Widget>("Samples");
- samples_tab.set_layout<GUI::VerticalBoxLayout>();
- samples_tab.layout()->set_margins({ 4, 4, 4, 4 });
- auto& samples_splitter = samples_tab.add<GUI::HorizontalSplitter>();
- auto& samples_table_view = samples_splitter.add<GUI::TableView>();
- samples_table_view.set_model(profile->samples_model());
- auto& individual_sample_view = samples_splitter.add<GUI::TableView>();
- samples_table_view.on_selection = [&](const GUI::ModelIndex& index) {
- auto model = IndividualSampleModel::create(*profile, index.data(GUI::ModelRole::Custom).to_integer<size_t>());
- individual_sample_view.set_model(move(model));
- };
- const u64 start_of_trace = profile->first_timestamp();
- const u64 end_of_trace = start_of_trace + profile->length_in_ms();
- const auto clamp_timestamp = [start_of_trace, end_of_trace](u64 timestamp) -> u64 {
- return min(end_of_trace, max(timestamp, start_of_trace));
- };
- auto& statusbar = main_widget.add<GUI::Statusbar>();
- timeline_view->on_selection_change = [&] {
- auto& view = *timeline_view;
- StringBuilder builder;
- u64 normalized_start_time = clamp_timestamp(min(view.select_start_time(), view.select_end_time()));
- u64 normalized_end_time = clamp_timestamp(max(view.select_start_time(), view.select_end_time()));
- u64 normalized_hover_time = clamp_timestamp(view.hover_time());
- builder.appendff("Time: {} ms", normalized_hover_time - start_of_trace);
- if (normalized_start_time != normalized_end_time) {
- auto start = normalized_start_time - start_of_trace;
- auto end = normalized_end_time - start_of_trace;
- builder.appendff(", Selection: {} - {} ms", start, end);
- }
- statusbar.set_text(builder.to_string());
- };
- auto menubar = GUI::Menubar::construct();
- auto& file_menu = menubar->add_menu("&File");
- file_menu.add_action(GUI::CommonActions::make_quit_action([&](auto&) { app->quit(); }));
- auto& view_menu = menubar->add_menu("&View");
- auto invert_action = GUI::Action::create_checkable("&Invert Tree", { Mod_Ctrl, Key_I }, [&](auto& action) {
- profile->set_inverted(action.is_checked());
- });
- invert_action->set_checked(false);
- view_menu.add_action(invert_action);
- auto top_functions_action = GUI::Action::create_checkable("&Top Functions", { Mod_Ctrl, Key_T }, [&](auto& action) {
- profile->set_show_top_functions(action.is_checked());
- });
- top_functions_action->set_checked(false);
- view_menu.add_action(top_functions_action);
- auto percent_action = GUI::Action::create_checkable("Show &Percentages", { Mod_Ctrl, Key_P }, [&](auto& action) {
- profile->set_show_percentages(action.is_checked());
- tree_view.update();
- disassembly_view.update();
- });
- percent_action->set_checked(false);
- view_menu.add_action(percent_action);
- auto& help_menu = menubar->add_menu("&Help");
- help_menu.add_action(GUI::CommonActions::make_help_action([](auto&) {
- Desktop::Launcher::open(URL::create_with_file_protocol("/usr/share/man/man1/Profiler.md"), "/bin/Help");
- }));
- help_menu.add_action(GUI::CommonActions::make_about_action("Profiler", app_icon, window));
- window->set_menubar(move(menubar));
- window->show();
- return app->exec();
- }
- static bool prompt_to_stop_profiling(pid_t pid, const String& process_name)
- {
- auto window = GUI::Window::construct();
- window->set_title(String::formatted("Profiling {}({})", process_name, pid));
- window->resize(240, 100);
- window->set_icon(Gfx::Bitmap::load_from_file("/res/icons/16x16/app-profiler.png"));
- window->center_on_screen();
- auto& widget = window->set_main_widget<GUI::Widget>();
- widget.set_fill_with_background_color(true);
- auto& layout = widget.set_layout<GUI::VerticalBoxLayout>();
- layout.set_margins(GUI::Margins(0, 0, 0, 16));
- auto& timer_label = widget.add<GUI::Label>("...");
- Core::ElapsedTimer clock;
- clock.start();
- auto update_timer = Core::Timer::construct(100, [&] {
- timer_label.set_text(String::formatted("{:.1} seconds", clock.elapsed() / 1000.0f));
- });
- auto& stop_button = widget.add<GUI::Button>("Stop");
- stop_button.set_fixed_size(140, 22);
- stop_button.on_click = [&](auto) {
- GUI::Application::the()->quit();
- };
- window->show();
- return GUI::Application::the()->exec() == 0;
- }
- bool generate_profile(pid_t& pid)
- {
- if (!pid) {
- auto process_chooser = GUI::ProcessChooser::construct("Profiler", "Profile", Gfx::Bitmap::load_from_file("/res/icons/16x16/app-profiler.png"));
- if (process_chooser->exec() == GUI::Dialog::ExecCancel)
- return false;
- pid = process_chooser->pid();
- }
- String process_name;
- auto all_processes = Core::ProcessStatisticsReader::get_all();
- if (all_processes.has_value()) {
- if (auto it = all_processes.value().find(pid); it != all_processes.value().end())
- process_name = it->value.name;
- else
- process_name = "(unknown)";
- } else {
- process_name = "(unknown)";
- }
- if (profiling_enable(pid) < 0) {
- int saved_errno = errno;
- GUI::MessageBox::show(nullptr, String::formatted("Unable to profile process {}({}): {}", process_name, pid, strerror(saved_errno)), "Profiler", GUI::MessageBox::Type::Error);
- return false;
- }
- if (!prompt_to_stop_profiling(pid, process_name))
- return false;
- if (profiling_disable(pid) < 0) {
- return false;
- }
- return true;
- }
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