/*************************************************************************/ /* local_debugger.cpp */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ /* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */ /* */ /* Permission is hereby granted, free of charge, to any person obtaining */ /* a copy of this software and associated documentation files (the */ /* "Software"), to deal in the Software without restriction, including */ /* without limitation the rights to use, copy, modify, merge, publish, */ /* distribute, sublicense, and/or sell copies of the Software, and to */ /* permit persons to whom the Software is furnished to do so, subject to */ /* the following conditions: */ /* */ /* The above copyright notice and this permission notice shall be */ /* included in all copies or substantial portions of the Software. */ /* */ /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ /*************************************************************************/ #include "local_debugger.h" #include "core/debugger/script_debugger.h" #include "core/os/os.h" #include "scene/main/scene_tree.h" struct LocalDebugger::ScriptsProfiler { struct ProfileInfoSort { bool operator()(const ScriptLanguage::ProfilingInfo &A, const ScriptLanguage::ProfilingInfo &B) const { return A.total_time > B.total_time; } }; float frame_time = 0; uint64_t idle_accum = 0; Vector<ScriptLanguage::ProfilingInfo> pinfo; void toggle(bool p_enable, const Array &p_opts) { if (p_enable) { for (int i = 0; i < ScriptServer::get_language_count(); i++) { ScriptServer::get_language(i)->profiling_start(); } print_line("BEGIN PROFILING"); pinfo.resize(32768); } else { _print_frame_data(true); for (int i = 0; i < ScriptServer::get_language_count(); i++) { ScriptServer::get_language(i)->profiling_stop(); } } } void tick(float p_frame_time, float p_idle_time, float p_physics_time, float p_physics_frame_time) { frame_time = p_frame_time; _print_frame_data(false); } void _print_frame_data(bool p_accumulated) { uint64_t diff = OS::get_singleton()->get_ticks_usec() - idle_accum; if (!p_accumulated && diff < 1000000) { //show every one second return; } idle_accum = OS::get_singleton()->get_ticks_usec(); int ofs = 0; for (int i = 0; i < ScriptServer::get_language_count(); i++) { if (p_accumulated) { ofs += ScriptServer::get_language(i)->profiling_get_accumulated_data(&pinfo.write[ofs], pinfo.size() - ofs); } else { ofs += ScriptServer::get_language(i)->profiling_get_frame_data(&pinfo.write[ofs], pinfo.size() - ofs); } } SortArray<ScriptLanguage::ProfilingInfo, ProfileInfoSort> sort; sort.sort(pinfo.ptrw(), ofs); // compute total script frame time uint64_t script_time_us = 0; for (int i = 0; i < ofs; i++) { script_time_us += pinfo[i].self_time; } float script_time = USEC_TO_SEC(script_time_us); float total_time = p_accumulated ? script_time : frame_time; if (!p_accumulated) { print_line("FRAME: total: " + rtos(total_time) + " script: " + rtos(script_time) + "/" + itos(script_time * 100 / total_time) + " %"); } else { print_line("ACCUMULATED: total: " + rtos(total_time)); } for (int i = 0; i < ofs; i++) { print_line(itos(i) + ":" + pinfo[i].signature); float tt = USEC_TO_SEC(pinfo[i].total_time); float st = USEC_TO_SEC(pinfo[i].self_time); print_line("\ttotal: " + rtos(tt) + "/" + itos(tt * 100 / total_time) + " % \tself: " + rtos(st) + "/" + itos(st * 100 / total_time) + " % tcalls: " + itos(pinfo[i].call_count)); } } ScriptsProfiler() { idle_accum = OS::get_singleton()->get_ticks_usec(); } }; void LocalDebugger::debug(bool p_can_continue, bool p_is_error_breakpoint) { ScriptLanguage *script_lang = script_debugger->get_break_language(); if (!target_function.is_empty()) { String current_function = script_lang->debug_get_stack_level_function(0); if (current_function != target_function) { script_debugger->set_depth(0); script_debugger->set_lines_left(1); return; } target_function = ""; } print_line("\nDebugger Break, Reason: '" + script_lang->debug_get_error() + "'"); print_line("*Frame " + itos(0) + " - " + script_lang->debug_get_stack_level_source(0) + ":" + itos(script_lang->debug_get_stack_level_line(0)) + " in function '" + script_lang->debug_get_stack_level_function(0) + "'"); print_line("Enter \"help\" for assistance."); int current_frame = 0; int total_frames = script_lang->debug_get_stack_level_count(); while (true) { OS::get_singleton()->print("debug> "); String line = OS::get_singleton()->get_stdin_string().strip_edges(); // Cache options String variable_prefix = options["variable_prefix"]; if (line == "") { print_line("\nDebugger Break, Reason: '" + script_lang->debug_get_error() + "'"); print_line("*Frame " + itos(current_frame) + " - " + script_lang->debug_get_stack_level_source(current_frame) + ":" + itos(script_lang->debug_get_stack_level_line(current_frame)) + " in function '" + script_lang->debug_get_stack_level_function(current_frame) + "'"); print_line("Enter \"help\" for assistance."); } else if (line == "c" || line == "continue") { break; } else if (line == "bt" || line == "breakpoint") { for (int i = 0; i < total_frames; i++) { String cfi = (current_frame == i) ? "*" : " "; //current frame indicator print_line(cfi + "Frame " + itos(i) + " - " + script_lang->debug_get_stack_level_source(i) + ":" + itos(script_lang->debug_get_stack_level_line(i)) + " in function '" + script_lang->debug_get_stack_level_function(i) + "'"); } } else if (line.begins_with("fr") || line.begins_with("frame")) { if (line.get_slice_count(" ") == 1) { print_line("*Frame " + itos(current_frame) + " - " + script_lang->debug_get_stack_level_source(current_frame) + ":" + itos(script_lang->debug_get_stack_level_line(current_frame)) + " in function '" + script_lang->debug_get_stack_level_function(current_frame) + "'"); } else { int frame = line.get_slicec(' ', 1).to_int(); if (frame < 0 || frame >= total_frames) { print_line("Error: Invalid frame."); } else { current_frame = frame; print_line("*Frame " + itos(frame) + " - " + script_lang->debug_get_stack_level_source(frame) + ":" + itos(script_lang->debug_get_stack_level_line(frame)) + " in function '" + script_lang->debug_get_stack_level_function(frame) + "'"); } } } else if (line.begins_with("set")) { if (line.get_slice_count(" ") == 1) { for (Map<String, String>::Element *E = options.front(); E; E = E->next()) { print_line("\t" + E->key() + "=" + E->value()); } } else { String key_value = line.get_slicec(' ', 1); int value_pos = key_value.find("="); if (value_pos < 0) { print_line("Error: Invalid set format. Use: set key=value"); } else { String key = key_value.left(value_pos); if (!options.has(key)) { print_line("Error: Unknown option " + key); } else { // Allow explicit tab character String value = key_value.right(value_pos + 1).replace("\\t", "\t"); options[key] = value; } } } } else if (line == "lv" || line == "locals") { List<String> locals; List<Variant> values; script_lang->debug_get_stack_level_locals(current_frame, &locals, &values); print_variables(locals, values, variable_prefix); } else if (line == "gv" || line == "globals") { List<String> globals; List<Variant> values; script_lang->debug_get_globals(&globals, &values); print_variables(globals, values, variable_prefix); } else if (line == "mv" || line == "members") { List<String> members; List<Variant> values; script_lang->debug_get_stack_level_members(current_frame, &members, &values); print_variables(members, values, variable_prefix); } else if (line.begins_with("p") || line.begins_with("print")) { if (line.get_slice_count(" ") <= 1) { print_line("Usage: print <expre>"); } else { String expr = line.get_slicec(' ', 2); String res = script_lang->debug_parse_stack_level_expression(current_frame, expr); print_line(res); } } else if (line == "s" || line == "step") { script_debugger->set_depth(-1); script_debugger->set_lines_left(1); break; } else if (line == "n" || line == "next") { script_debugger->set_depth(0); script_debugger->set_lines_left(1); break; } else if (line == "fin" || line == "finish") { String current_function = script_lang->debug_get_stack_level_function(0); for (int i = 0; i < total_frames; i++) { target_function = script_lang->debug_get_stack_level_function(i); if (target_function != current_function) { script_debugger->set_depth(0); script_debugger->set_lines_left(1); return; } } print_line("Error: Reached last frame."); target_function = ""; } else if (line.begins_with("br") || line.begins_with("break")) { if (line.get_slice_count(" ") <= 1) { const Map<int, Set<StringName>> &breakpoints = script_debugger->get_breakpoints(); if (breakpoints.size() == 0) { print_line("No Breakpoints."); continue; } print_line("Breakpoint(s): " + itos(breakpoints.size())); for (Map<int, Set<StringName>>::Element *E = breakpoints.front(); E; E = E->next()) { print_line("\t" + String(E->value().front()->get()) + ":" + itos(E->key())); } } else { Pair<String, int> breakpoint = to_breakpoint(line); String source = breakpoint.first; int linenr = breakpoint.second; if (source.is_empty()) { continue; } script_debugger->insert_breakpoint(linenr, source); print_line("Added breakpoint at " + source + ":" + itos(linenr)); } } else if (line == "q" || line == "quit") { // Do not stop again on quit script_debugger->clear_breakpoints(); script_debugger->set_depth(-1); script_debugger->set_lines_left(-1); SceneTree::get_singleton()->quit(); break; } else if (line.begins_with("delete")) { if (line.get_slice_count(" ") <= 1) { script_debugger->clear_breakpoints(); } else { Pair<String, int> breakpoint = to_breakpoint(line); String source = breakpoint.first; int linenr = breakpoint.second; if (source.is_empty()) { continue; } script_debugger->remove_breakpoint(linenr, source); print_line("Removed breakpoint at " + source + ":" + itos(linenr)); } } else if (line == "h" || line == "help") { print_line("Built-In Debugger command list:\n"); print_line("\tc,continue\t\t Continue execution."); print_line("\tbt,backtrace\t\t Show stack trace (frames)."); print_line("\tfr,frame <frame>:\t Change current frame."); print_line("\tlv,locals\t\t Show local variables for current frame."); print_line("\tmv,members\t\t Show member variables for \"this\" in frame."); print_line("\tgv,globals\t\t Show global variables."); print_line("\tp,print <expr>\t\t Execute and print variable in expression."); print_line("\ts,step\t\t\t Step to next line."); print_line("\tn,next\t\t\t Next line."); print_line("\tfin,finish\t\t Step out of current frame."); print_line("\tbr,break [source:line]\t List all breakpoints or place a breakpoint."); print_line("\tdelete [source:line]:\t Delete one/all breakpoints."); print_line("\tset [key=value]:\t List all options, or set one."); print_line("\tq,quit\t\t\t Quit application."); } else { print_line("Error: Invalid command, enter \"help\" for assistance."); } } } void LocalDebugger::print_variables(const List<String> &names, const List<Variant> &values, const String &variable_prefix) { String value; Vector<String> value_lines; const List<Variant>::Element *V = values.front(); for (const List<String>::Element *E = names.front(); E; E = E->next()) { value = String(V->get()); if (variable_prefix.is_empty()) { print_line(E->get() + ": " + String(V->get())); } else { print_line(E->get() + ":"); value_lines = value.split("\n"); for (int i = 0; i < value_lines.size(); ++i) { print_line(variable_prefix + value_lines[i]); } } V = V->next(); } } Pair<String, int> LocalDebugger::to_breakpoint(const String &p_line) { String breakpoint_part = p_line.get_slicec(' ', 1); Pair<String, int> breakpoint; int last_colon = breakpoint_part.rfind(":"); if (last_colon < 0) { print_line("Error: Invalid breakpoint format. Expected [source:line]"); return breakpoint; } breakpoint.first = script_debugger->breakpoint_find_source(breakpoint_part.left(last_colon).strip_edges()); breakpoint.second = breakpoint_part.right(last_colon).strip_edges().to_int(); return breakpoint; } void LocalDebugger::send_message(const String &p_message, const Array &p_args) { // This needs to be cleaned up entirely. // print_line("MESSAGE: '" + p_message + "' - " + String(Variant(p_args))); } void LocalDebugger::send_error(const String &p_func, const String &p_file, int p_line, const String &p_err, const String &p_descr, ErrorHandlerType p_type) { print_line("ERROR: '" + (p_descr.is_empty() ? p_err : p_descr) + "'"); } LocalDebugger::LocalDebugger() { options["variable_prefix"] = ""; // Bind scripts profiler. scripts_profiler = memnew(ScriptsProfiler); Profiler scr_prof( scripts_profiler, [](void *p_user, bool p_enable, const Array &p_opts) { ((ScriptsProfiler *)p_user)->toggle(p_enable, p_opts); }, nullptr, [](void *p_user, float p_frame_time, float p_idle_time, float p_physics_time, float p_physics_frame_time) { ((ScriptsProfiler *)p_user)->tick(p_frame_time, p_idle_time, p_physics_time, p_physics_frame_time); }); register_profiler("scripts", scr_prof); } LocalDebugger::~LocalDebugger() { unregister_profiler("scripts"); if (scripts_profiler) { memdelete(scripts_profiler); } }