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LibCoreDump+Crash{Daemon,Reporter}: Make backtraces thread-specific
We want to show an individual backtrace for each thread, not one containing backtrace entries from all threads. Fixes #4778.
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parent
057ae36e32
commit
7668e968af
6 changed files with 86 additions and 46 deletions
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@ -36,40 +36,56 @@
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#include <LibDesktop/Launcher.h>
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#include <LibELF/CoreDump.h>
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#include <LibGUI/Application.h>
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#include <LibGUI/BoxLayout.h>
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#include <LibGUI/Button.h>
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#include <LibGUI/FileIconProvider.h>
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#include <LibGUI/Icon.h>
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#include <LibGUI/ImageWidget.h>
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#include <LibGUI/Label.h>
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#include <LibGUI/Layout.h>
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#include <LibGUI/LinkLabel.h>
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#include <LibGUI/TabWidget.h>
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#include <LibGUI/TextEditor.h>
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#include <LibGUI/Widget.h>
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#include <LibGUI/Window.h>
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#include <string.h>
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static String build_backtrace(const CoreDump::Reader& coredump)
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struct TitleAndText {
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String title;
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String text;
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};
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static TitleAndText build_backtrace(const CoreDump::Reader& coredump, const ELF::Core::ThreadInfo& thread_info, size_t thread_index)
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{
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CoreDump::Backtrace backtrace(coredump, thread_info);
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StringBuilder builder;
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auto assertion = coredump.metadata().get("assertion");
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if (assertion.has_value() && !assertion.value().is_empty()) {
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auto prepend_assertion = [&] {
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auto assertion = coredump.metadata().get("assertion");
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if (!assertion.has_value() || assertion.value().is_empty())
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return;
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builder.append("ASSERTION FAILED: ");
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builder.append(assertion.value().characters());
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builder.append('\n');
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builder.append('\n');
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}
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};
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auto first = true;
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for (auto& entry : coredump.backtrace().entries()) {
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if (first)
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first = false;
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else
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auto first_entry = true;
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for (auto& entry : backtrace.entries()) {
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if (first_entry) {
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if (entry.function_name.starts_with("__assertion_failed"))
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prepend_assertion();
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first_entry = false;
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} else {
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builder.append('\n');
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}
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builder.append(entry.to_string());
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}
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return builder.build();
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return {
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String::formatted("Thread #{} (TID {})", thread_index, thread_info.tid),
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builder.build()
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};
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}
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int main(int argc, char** argv)
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@ -86,7 +102,8 @@ int main(int argc, char** argv)
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args_parser.add_positional_argument(coredump_path, "Coredump path", "coredump-path");
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args_parser.parse(argc, argv);
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String backtrace;
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Vector<TitleAndText> thread_backtraces;
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String executable_path;
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int pid { 0 };
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u8 termination_signal { 0 };
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@ -97,7 +114,14 @@ int main(int argc, char** argv)
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warnln("Could not open coredump '{}'", coredump_path);
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return 1;
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}
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backtrace = build_backtrace(*coredump);
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size_t thread_index = 0;
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coredump->for_each_thread_info([&](auto& thread_info) {
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thread_backtraces.append(build_backtrace(*coredump, thread_info, thread_index));
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++thread_index;
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return IterationDecision::Continue;
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});
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executable_path = coredump->process_executable_path();
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pid = coredump->process_pid();
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termination_signal = coredump->process_termination_signal();
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@ -166,10 +190,24 @@ int main(int argc, char** argv)
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auto& tab_widget = *widget.find_descendant_of_type_named<GUI::TabWidget>("tab_widget");
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auto& backtrace_text_editor = tab_widget.add_tab<GUI::TextEditor>("Backtrace");
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backtrace_text_editor.set_mode(GUI::TextEditor::Mode::ReadOnly);
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backtrace_text_editor.set_text(backtrace);
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backtrace_text_editor.set_should_hide_unnecessary_scrollbars(true);
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auto& backtrace_tab = tab_widget.add_tab<GUI::Widget>("Backtrace");
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backtrace_tab.set_layout<GUI::VerticalBoxLayout>();
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backtrace_tab.layout()->set_margins({ 4, 4, 4, 4 });
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auto& backtrace_label = backtrace_tab.add<GUI::Label>("A backtrace for each thread alive during the crash is listed below:");
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backtrace_label.set_text_alignment(Gfx::TextAlignment::CenterLeft);
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backtrace_label.set_fixed_height(16);
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auto& backtrace_tab_widget = backtrace_tab.add<GUI::TabWidget>();
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backtrace_tab_widget.set_tab_position(GUI::TabWidget::TabPosition::Bottom);
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for (auto& backtrace : thread_backtraces) {
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auto& backtrace_text_editor = backtrace_tab_widget.add_tab<GUI::TextEditor>(backtrace.title);
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backtrace_text_editor.set_layout<GUI::VerticalBoxLayout>();
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backtrace_text_editor.layout()->set_margins({ 4, 4, 4, 4 });
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backtrace_text_editor.set_text(backtrace.text);
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backtrace_text_editor.set_mode(GUI::TextEditor::Mode::ReadOnly);
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backtrace_text_editor.set_should_hide_unnecessary_scrollbars(true);
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}
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auto& close_button = *widget.find_descendant_of_type_named<GUI::Button>("close_button");
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close_button.on_click = [&](auto) {
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