416 lines
15 KiB
C++
416 lines
15 KiB
C++
/*************************************************************************/
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/* local_debugger.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "local_debugger.h"
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#include "core/debugger/script_debugger.h"
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#include "core/os/os.h"
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#include "scene/main/scene_tree.h"
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struct LocalDebugger::ScriptsProfiler {
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struct ProfileInfoSort {
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bool operator()(const ScriptLanguage::ProfilingInfo &A, const ScriptLanguage::ProfilingInfo &B) const {
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return A.total_time > B.total_time;
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}
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};
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float frame_time = 0;
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uint64_t idle_accum = 0;
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Vector<ScriptLanguage::ProfilingInfo> pinfo;
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void toggle(bool p_enable, const Array &p_opts) {
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if (p_enable) {
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for (int i = 0; i < ScriptServer::get_language_count(); i++) {
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ScriptServer::get_language(i)->profiling_start();
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}
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print_line("BEGIN PROFILING");
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pinfo.resize(32768);
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} else {
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_print_frame_data(true);
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for (int i = 0; i < ScriptServer::get_language_count(); i++) {
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ScriptServer::get_language(i)->profiling_stop();
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}
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}
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}
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void tick(float p_frame_time, float p_idle_time, float p_physics_time, float p_physics_frame_time) {
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frame_time = p_frame_time;
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_print_frame_data(false);
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}
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void _print_frame_data(bool p_accumulated) {
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uint64_t diff = OS::get_singleton()->get_ticks_usec() - idle_accum;
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if (!p_accumulated && diff < 1000000) //show every one second
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return;
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idle_accum = OS::get_singleton()->get_ticks_usec();
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int ofs = 0;
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for (int i = 0; i < ScriptServer::get_language_count(); i++) {
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if (p_accumulated)
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ofs += ScriptServer::get_language(i)->profiling_get_accumulated_data(&pinfo.write[ofs], pinfo.size() - ofs);
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else
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ofs += ScriptServer::get_language(i)->profiling_get_frame_data(&pinfo.write[ofs], pinfo.size() - ofs);
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}
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SortArray<ScriptLanguage::ProfilingInfo, ProfileInfoSort> sort;
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sort.sort(pinfo.ptrw(), ofs);
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// compute total script frame time
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uint64_t script_time_us = 0;
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for (int i = 0; i < ofs; i++) {
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script_time_us += pinfo[i].self_time;
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}
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float script_time = USEC_TO_SEC(script_time_us);
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float total_time = p_accumulated ? script_time : frame_time;
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if (!p_accumulated) {
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print_line("FRAME: total: " + rtos(total_time) + " script: " + rtos(script_time) + "/" + itos(script_time * 100 / total_time) + " %");
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} else {
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print_line("ACCUMULATED: total: " + rtos(total_time));
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}
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for (int i = 0; i < ofs; i++) {
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print_line(itos(i) + ":" + pinfo[i].signature);
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float tt = USEC_TO_SEC(pinfo[i].total_time);
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float st = USEC_TO_SEC(pinfo[i].self_time);
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print_line("\ttotal: " + rtos(tt) + "/" + itos(tt * 100 / total_time) + " % \tself: " + rtos(st) + "/" + itos(st * 100 / total_time) + " % tcalls: " + itos(pinfo[i].call_count));
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}
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}
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ScriptsProfiler() {
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idle_accum = OS::get_singleton()->get_ticks_usec();
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}
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};
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void LocalDebugger::debug(bool p_can_continue, bool p_is_error_breakpoint) {
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ScriptLanguage *script_lang = script_debugger->get_break_language();
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if (!target_function.empty()) {
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String current_function = script_lang->debug_get_stack_level_function(0);
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if (current_function != target_function) {
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script_debugger->set_depth(0);
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script_debugger->set_lines_left(1);
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return;
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}
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target_function = "";
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}
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print_line("\nDebugger Break, Reason: '" + script_lang->debug_get_error() + "'");
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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) + "'");
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print_line("Enter \"help\" for assistance.");
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int current_frame = 0;
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int total_frames = script_lang->debug_get_stack_level_count();
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while (true) {
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OS::get_singleton()->print("debug> ");
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String line = OS::get_singleton()->get_stdin_string().strip_edges();
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// Cache options
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String variable_prefix = options["variable_prefix"];
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if (line == "") {
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print_line("\nDebugger Break, Reason: '" + script_lang->debug_get_error() + "'");
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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) + "'");
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print_line("Enter \"help\" for assistance.");
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} else if (line == "c" || line == "continue")
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break;
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else if (line == "bt" || line == "breakpoint") {
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for (int i = 0; i < total_frames; i++) {
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String cfi = (current_frame == i) ? "*" : " "; //current frame indicator
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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) + "'");
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}
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} else if (line.begins_with("fr") || line.begins_with("frame")) {
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if (line.get_slice_count(" ") == 1) {
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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) + "'");
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} else {
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int frame = line.get_slicec(' ', 1).to_int();
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if (frame < 0 || frame >= total_frames) {
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print_line("Error: Invalid frame.");
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} else {
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current_frame = frame;
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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) + "'");
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}
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}
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} else if (line.begins_with("set")) {
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if (line.get_slice_count(" ") == 1) {
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for (Map<String, String>::Element *E = options.front(); E; E = E->next()) {
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print_line("\t" + E->key() + "=" + E->value());
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}
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} else {
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String key_value = line.get_slicec(' ', 1);
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int value_pos = key_value.find("=");
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if (value_pos < 0) {
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print_line("Error: Invalid set format. Use: set key=value");
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} else {
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String key = key_value.left(value_pos);
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if (!options.has(key)) {
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print_line("Error: Unknown option " + key);
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} else {
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// Allow explicit tab character
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String value = key_value.right(value_pos + 1).replace("\\t", "\t");
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options[key] = value;
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}
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}
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}
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} else if (line == "lv" || line == "locals") {
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List<String> locals;
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List<Variant> values;
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script_lang->debug_get_stack_level_locals(current_frame, &locals, &values);
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print_variables(locals, values, variable_prefix);
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} else if (line == "gv" || line == "globals") {
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List<String> globals;
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List<Variant> values;
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script_lang->debug_get_globals(&globals, &values);
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print_variables(globals, values, variable_prefix);
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} else if (line == "mv" || line == "members") {
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List<String> members;
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List<Variant> values;
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script_lang->debug_get_stack_level_members(current_frame, &members, &values);
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print_variables(members, values, variable_prefix);
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} else if (line.begins_with("p") || line.begins_with("print")) {
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if (line.get_slice_count(" ") <= 1) {
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print_line("Usage: print <expre>");
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} else {
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String expr = line.get_slicec(' ', 2);
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String res = script_lang->debug_parse_stack_level_expression(current_frame, expr);
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print_line(res);
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}
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} else if (line == "s" || line == "step") {
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script_debugger->set_depth(-1);
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script_debugger->set_lines_left(1);
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break;
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} else if (line == "n" || line == "next") {
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script_debugger->set_depth(0);
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script_debugger->set_lines_left(1);
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break;
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} else if (line == "fin" || line == "finish") {
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String current_function = script_lang->debug_get_stack_level_function(0);
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for (int i = 0; i < total_frames; i++) {
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target_function = script_lang->debug_get_stack_level_function(i);
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if (target_function != current_function) {
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script_debugger->set_depth(0);
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script_debugger->set_lines_left(1);
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return;
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}
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}
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print_line("Error: Reached last frame.");
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target_function = "";
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} else if (line.begins_with("br") || line.begins_with("break")) {
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if (line.get_slice_count(" ") <= 1) {
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const Map<int, Set<StringName>> &breakpoints = script_debugger->get_breakpoints();
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if (breakpoints.size() == 0) {
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print_line("No Breakpoints.");
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continue;
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}
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print_line("Breakpoint(s): " + itos(breakpoints.size()));
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for (Map<int, Set<StringName>>::Element *E = breakpoints.front(); E; E = E->next()) {
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print_line("\t" + String(E->value().front()->get()) + ":" + itos(E->key()));
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}
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} else {
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Pair<String, int> breakpoint = to_breakpoint(line);
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String source = breakpoint.first;
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int linenr = breakpoint.second;
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if (source.empty())
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continue;
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script_debugger->insert_breakpoint(linenr, source);
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print_line("Added breakpoint at " + source + ":" + itos(linenr));
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}
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} else if (line == "q" || line == "quit") {
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// Do not stop again on quit
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script_debugger->clear_breakpoints();
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script_debugger->set_depth(-1);
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script_debugger->set_lines_left(-1);
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SceneTree::get_singleton()->quit();
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break;
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} else if (line.begins_with("delete")) {
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if (line.get_slice_count(" ") <= 1) {
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script_debugger->clear_breakpoints();
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} else {
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Pair<String, int> breakpoint = to_breakpoint(line);
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String source = breakpoint.first;
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int linenr = breakpoint.second;
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if (source.empty())
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continue;
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script_debugger->remove_breakpoint(linenr, source);
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print_line("Removed breakpoint at " + source + ":" + itos(linenr));
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}
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} else if (line == "h" || line == "help") {
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print_line("Built-In Debugger command list:\n");
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print_line("\tc,continue\t\t Continue execution.");
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print_line("\tbt,backtrace\t\t Show stack trace (frames).");
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print_line("\tfr,frame <frame>:\t Change current frame.");
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print_line("\tlv,locals\t\t Show local variables for current frame.");
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print_line("\tmv,members\t\t Show member variables for \"this\" in frame.");
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print_line("\tgv,globals\t\t Show global variables.");
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print_line("\tp,print <expr>\t\t Execute and print variable in expression.");
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print_line("\ts,step\t\t\t Step to next line.");
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print_line("\tn,next\t\t\t Next line.");
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print_line("\tfin,finish\t\t Step out of current frame.");
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print_line("\tbr,break [source:line]\t List all breakpoints or place a breakpoint.");
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print_line("\tdelete [source:line]:\t Delete one/all breakpoints.");
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print_line("\tset [key=value]:\t List all options, or set one.");
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print_line("\tq,quit\t\t\t Quit application.");
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} else {
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print_line("Error: Invalid command, enter \"help\" for assistance.");
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}
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}
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}
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void LocalDebugger::print_variables(const List<String> &names, const List<Variant> &values, const String &variable_prefix) {
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String value;
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Vector<String> value_lines;
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const List<Variant>::Element *V = values.front();
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for (const List<String>::Element *E = names.front(); E; E = E->next()) {
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value = String(V->get());
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if (variable_prefix.empty()) {
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print_line(E->get() + ": " + String(V->get()));
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} else {
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print_line(E->get() + ":");
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value_lines = value.split("\n");
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for (int i = 0; i < value_lines.size(); ++i) {
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print_line(variable_prefix + value_lines[i]);
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}
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}
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V = V->next();
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}
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}
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Pair<String, int> LocalDebugger::to_breakpoint(const String &p_line) {
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String breakpoint_part = p_line.get_slicec(' ', 1);
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Pair<String, int> breakpoint;
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int last_colon = breakpoint_part.rfind(":");
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if (last_colon < 0) {
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print_line("Error: Invalid breakpoint format. Expected [source:line]");
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return breakpoint;
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}
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breakpoint.first = script_debugger->breakpoint_find_source(breakpoint_part.left(last_colon).strip_edges());
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breakpoint.second = breakpoint_part.right(last_colon).strip_edges().to_int();
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return breakpoint;
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}
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void LocalDebugger::send_message(const String &p_message, const Array &p_args) {
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// This needs to be cleaned up entirely.
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// print_line("MESSAGE: '" + p_message + "' - " + String(Variant(p_args)));
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}
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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) {
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print_line("ERROR: '" + (p_descr.empty() ? p_err : p_descr) + "'");
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}
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LocalDebugger::LocalDebugger() {
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options["variable_prefix"] = "";
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// Bind scripts profiler.
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scripts_profiler = memnew(ScriptsProfiler);
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Profiler scr_prof(
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scripts_profiler,
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[](void *p_user, bool p_enable, const Array &p_opts) {
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((ScriptsProfiler *)p_user)->toggle(p_enable, p_opts);
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},
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nullptr,
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[](void *p_user, float p_frame_time, float p_idle_time, float p_physics_time, float p_physics_frame_time) {
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((ScriptsProfiler *)p_user)->tick(p_frame_time, p_idle_time, p_physics_time, p_physics_frame_time);
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});
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register_profiler("scripts", scr_prof);
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}
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LocalDebugger::~LocalDebugger() {
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unregister_profiler("scripts");
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if (scripts_profiler)
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memdelete(scripts_profiler);
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}
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