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Local debugger fixes and extensions

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- Adds q/quit option to console debugging
- Adds options (variable_prefix)
- Breaks into debugger with Ctrl-C in local debug mode (Unix/Windows)
- Added option to list all breakpoints
- Fixes add/remove breakpoint bug (invalid path parsing)
- Minor cleanup
This commit is contained in:
Blazej Floch 2018-02-11 06:08:37 -05:00
parent 9b1fdad035
commit c45f44d856
9 changed files with 209 additions and 45 deletions
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1
core/os/os.h
View File

@ -320,6 +320,7 @@ public:
virtual void disable_crash_handler() {}
virtual bool is_disable_crash_handler() const { return false; }
virtual void initialize_debugging() {}
enum CursorShape {
CURSOR_ARROW,

207
core/script_debugger_local.cpp
View File

@ -29,12 +29,23 @@
/*************************************************************************/
#include "script_debugger_local.h"
#include "scene/main/scene_tree.h"
#include "os/os.h"
void ScriptDebuggerLocal::debug(ScriptLanguage *p_script, bool p_can_continue) {
print_line("Debugger Break, Reason: '" + p_script->debug_get_error() + "'");
if (!target_function.empty()) {
String current_function = p_script->debug_get_stack_level_function(0);
if (current_function != target_function) {
set_depth(0);
set_lines_left(1);
return;
}
target_function = "";
}
print_line("\nDebugger Break, Reason: '" + p_script->debug_get_error() + "'");
print_line("*Frame " + itos(0) + " - " + p_script->debug_get_stack_level_source(0) + ":" + itos(p_script->debug_get_stack_level_line(0)) + " in function '" + p_script->debug_get_stack_level_function(0) + "'");
print_line("Enter \"help\" for assistance.");
int current_frame = 0;
@ -44,8 +55,11 @@ void ScriptDebuggerLocal::debug(ScriptLanguage *p_script, bool p_can_continue) {
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("Debugger Break, Reason: '" + p_script->debug_get_error() + "'");
print_line("\nDebugger Break, Reason: '" + p_script->debug_get_error() + "'");
print_line("*Frame " + itos(current_frame) + " - " + p_script->debug_get_stack_level_source(current_frame) + ":" + itos(p_script->debug_get_stack_level_line(current_frame)) + " in function '" + p_script->debug_get_stack_level_function(current_frame) + "'");
print_line("Enter \"help\" for assistance.");
} else if (line == "c" || line == "continue")
@ -72,38 +86,56 @@ void ScriptDebuggerLocal::debug(ScriptLanguage *p_script, bool p_can_continue) {
}
}
} 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;
p_script->debug_get_stack_level_locals(current_frame, &locals, &values);
List<Variant>::Element *V = values.front();
for (List<String>::Element *E = locals.front(); E; E = E->next()) {
print_line(E->get() + ": " + String(V->get()));
V = V->next();
}
print_variables(locals, values, variable_prefix);
} else if (line == "gv" || line == "globals") {
List<String> locals;
List<String> globals;
List<Variant> values;
p_script->debug_get_globals(&locals, &values);
List<Variant>::Element *V = values.front();
for (List<String>::Element *E = locals.front(); E; E = E->next()) {
print_line(E->get() + ": " + String(V->get()));
V = V->next();
}
p_script->debug_get_globals(&globals, &values);
print_variables(globals, values, variable_prefix);
} else if (line == "mv" || line == "members") {
List<String> locals;
List<String> members;
List<Variant> values;
p_script->debug_get_stack_level_members(current_frame, &locals, &values);
List<Variant>::Element *V = values.front();
for (List<String>::Element *E = locals.front(); E; E = E->next()) {
print_line(E->get() + ": " + String(V->get()));
V = V->next();
}
p_script->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")) {
@ -121,65 +153,149 @@ void ScriptDebuggerLocal::debug(ScriptLanguage *p_script, bool p_can_continue) {
set_depth(-1);
set_lines_left(1);
break;
} else if (line.begins_with("n") || line.begins_with("next")) {
} else if (line == "n" || line == "next") {
set_depth(0);
set_lines_left(1);
break;
} else if (line == "fin" || line == "finish") {
String current_function = p_script->debug_get_stack_level_function(0);
for (int i = 0; i < total_frames; i++) {
target_function = p_script->debug_get_stack_level_function(i);
if (target_function != current_function) {
set_depth(0);
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) {
//show breakpoints
const Map<int, Set<StringName> > &breakpoints = 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 {
String bppos = line.get_slicec(' ', 1);
String source = bppos.get_slicec(':', 0).strip_edges();
int line = bppos.get_slicec(':', 1).strip_edges().to_int();
Pair<String, int> breakpoint = to_breakpoint(line);
source = breakpoint_find_source(source);
String source = breakpoint.first;
int linenr = breakpoint.second;
insert_breakpoint(line, source);
if (source.empty())
continue;
print_line("BreakPoint at " + source + ":" + itos(line));
insert_breakpoint(linenr, source);
print_line("Added breakpoint at " + source + ":" + itos(linenr));
}
} else if (line == "q" || line == "quit") {
// Do not stop again on quit
clear_breakpoints();
ScriptDebugger::get_singleton()->set_depth(-1);
ScriptDebugger::get_singleton()->set_lines_left(-1);
SceneTree::get_singleton()->quit();
break;
} else if (line.begins_with("delete")) {
if (line.get_slice_count(" ") <= 1) {
clear_breakpoints();
} else {
String bppos = line.get_slicec(' ', 1);
String source = bppos.get_slicec(':', 0).strip_edges();
int line = bppos.get_slicec(':', 1).strip_edges().to_int();
Pair<String, int> breakpoint = to_breakpoint(line);
source = breakpoint_find_source(source);
String source = breakpoint.first;
int linenr = breakpoint.second;
remove_breakpoint(line, source);
if (source.empty())
continue;
print_line("Removed BreakPoint at " + source + ":" + itos(line));
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("\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 Execute and print variable in expression.");
print_line("\ts,step :\t\t Step to next line.");
print_line("\tn,next :\t\t Next line.");
print_line("\tbr,break source:line :\t Place a breakpoint.");
print_line("\tdelete [source:line]:\t\t Delete one/all breakpoints.");
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 ScriptDebuggerLocal::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.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> ScriptDebuggerLocal::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 = breakpoint_find_source(breakpoint_part.left(last_colon).strip_edges());
breakpoint.second = breakpoint_part.right(last_colon).strip_edges().to_int();
return breakpoint;
}
struct _ScriptDebuggerLocalProfileInfoSort {
bool operator()(const ScriptLanguage::ProfilingInfo &A, const ScriptLanguage::ProfilingInfo &B) const {
@ -304,4 +420,5 @@ ScriptDebuggerLocal::ScriptDebuggerLocal() {
profiling = false;
idle_accum = OS::get_singleton()->get_ticks_usec();
options["variable_prefix"] = "";
}

6
core/script_debugger_local.h
View File

@ -31,6 +31,7 @@
#ifndef SCRIPT_DEBUGGER_LOCAL_H
#define SCRIPT_DEBUGGER_LOCAL_H
#include "list.h"
#include "script_language.h"
class ScriptDebuggerLocal : public ScriptDebugger {
@ -38,9 +39,14 @@ class ScriptDebuggerLocal : public ScriptDebugger {
bool profiling;
float frame_time, idle_time, physics_time, physics_frame_time;
uint64_t idle_accum;
String target_function;
Map<String, String> options;
Vector<ScriptLanguage::ProfilingInfo> pinfo;
Pair<String, int> to_breakpoint(const String &p_line);
void print_variables(const List<String> &names, const List<Variant> &values, const String &variable_prefix);
public:
void debug(ScriptLanguage *p_script, bool p_can_continue);
virtual void send_message(const String &p_message, const Array &p_args);

1
core/script_language.h
View File

@ -386,6 +386,7 @@ public:
bool is_breakpoint(int p_line, const StringName &p_source) const;
bool is_breakpoint_line(int p_line) const;
void clear_breakpoints();
const Map<int, Set<StringName> > &get_breakpoints() const { return breakpoints; }
virtual void debug(ScriptLanguage *p_script, bool p_can_continue = true) = 0;
virtual void idle_poll();

17
drivers/unix/os_unix.cpp
View File

@ -73,6 +73,23 @@ void OS_Unix::debug_break() {
assert(false);
};
static void handle_interrupt(int sig) {
if (ScriptDebugger::get_singleton() == NULL)
return;
ScriptDebugger::get_singleton()->set_depth(-1);
ScriptDebugger::get_singleton()->set_lines_left(1);
}
void OS_Unix::initialize_debugging() {
if (ScriptDebugger::get_singleton() != NULL) {
struct sigaction action;
action.sa_handler = handle_interrupt;
sigaction(SIGINT, &action, NULL);
}
}
int OS_Unix::unix_initialize_audio(int p_audio_driver) {
return 0;

1
drivers/unix/os_unix.h
View File

@ -101,6 +101,7 @@ public:
virtual int get_processor_count() const;
virtual void debug_break();
virtual void initialize_debugging();
virtual String get_executable_path() const;
virtual String get_user_data_dir() const;

1
main/main.cpp
View File

@ -730,6 +730,7 @@ Error Main::setup(const char *execpath, int argc, char *argv[], bool p_second_ph
} else if (debug_mode == "local") {
script_debugger = memnew(ScriptDebuggerLocal);
OS::get_singleton()->initialize_debugging();
}
FileAccessNetwork::configure();

19
platform/windows/os_windows.cpp
View File

@ -152,6 +152,25 @@ void RedirectIOToConsole() {
// point to console as well
}
BOOL WINAPI HandlerRoutine(_In_ DWORD dwCtrlType) {
if (ScriptDebugger::get_singleton() == NULL)
return FALSE;
switch (dwCtrlType) {
case CTRL_C_EVENT:
ScriptDebugger::get_singleton()->set_depth(-1);
ScriptDebugger::get_singleton()->set_lines_left(1);
return TRUE;
default:
return FALSE;
}
}
void OS_Windows::initialize_debugging() {
SetConsoleCtrlHandler(HandlerRoutine, TRUE);
}
void OS_Windows::initialize_core() {
crash_handler.initialize();

1
platform/windows/os_windows.h
View File

@ -294,6 +294,7 @@ public:
void disable_crash_handler();
bool is_disable_crash_handler() const;
virtual void initialize_debugging();
void force_process_input();