void AMXStackFramePrinter::Print(const AMXStackFrame &frame) {
PrintReturnAddress(frame);
*stream_ << " in ";
AMXDebugSymbol caller = GetCallerSymbol(frame);
if (caller) {
PrintCallerName(frame, caller);
} else {
PrintCallerName(frame);
}
*stream_ << " (";
PrintArgumentList(frame);
*stream_ << ")";
if (HaveDebugInfo() && UsesAutomata(frame)) {
*stream_ << " ";
PrintState(frame);
}
if (HaveDebugInfo() && frame.return_address() != 0) {
*stream_ << " at ";
PrintSourceLocation(frame.return_address());
}
}
void AMXStackFramePrinter::PrintArgumentValue(const AMXStackFrame &frame,
int index) {
cell value = GetArgumentValue(frame.amx(), frame.address(), index);
char old_fill = stream_->fill('0');
*stream_ << std::hex << "0x" << std::setw(kCellWidthChars)
<< value << std::dec;
stream_->fill(old_fill);
}
void AMXStackFramePrinter::PrintCallerName(const AMXStackFrame &frame,
const AMXDebugSymbol &caller) {
bool is_public = IsPublicFunction(frame.amx(),
caller.GetCodeStart());
bool is_main = IsMain(frame.amx(), caller.GetCodeStart());
if (is_public && !is_main) {
*stream_ << "public ";
}
PrintTag(caller);
*stream_ << caller.GetName();
}
void AMXStackFramePrinter::PrintReturnAddress(const AMXStackFrame &frame) {
if (frame.return_address() == 0) {
*stream_ << "????????";
} else {
char old_fill = stream_->fill('0');
*stream_ << std::hex << std::setw(kCellWidthChars)
<< frame.return_address()
<< std::dec;
stream_->fill(old_fill);
}
}
void AMXStackFramePrinter::PrintCallerName(const AMXStackFrame &frame) {
if (IsMain(frame.amx(), frame.caller_address())) {
stream_ << "main";
return;
}
if (debug_info_.IsLoaded()) {
AMXDebugSymbol caller =
debug_info_.GetExactFunction(frame.caller_address());
if (caller) {
if (IsPublicFunction(frame.amx(), caller.GetCodeStart())
&& !IsMain(frame.amx(), caller.GetCodeStart())) {
stream_ << "public ";
}
PrintTag(caller);
stream_ << caller.GetName();
return;
}
}
const char *name = 0;
if (frame.caller_address() != 0) {
name = frame.amx().FindPublic(frame.caller_address());
}
if (name != 0) {
stream_ << "public " << name;
} else {
stream_ << "??";
}
}
void AMXStackFramePrinter::PrintCallerName(const AMXStackFrame &frame) {
if (IsMain(frame.amx(), frame.caller_address())) {
*stream_ << "main";
} else {
const char *name = 0;
if (frame.caller_address() != 0) {
name = frame.amx().FindPublic(frame.caller_address());
}
if (name != 0) {
*stream_ << "public " << name;
} else {
*stream_ << "??";
}
}
}
void AMXStackFramePrinter::Print(const AMXStackFrame &frame) {
PrintReturnAddress(frame);
stream_ << " in ";
PrintCallerNameAndArguments(frame);
if (debug_info_.IsLoaded() && UsesAutomata(frame)) {
stream_ << " ";
PrintState(frame);
}
if (debug_info_.IsLoaded() && frame.return_address() != 0) {
stream_ << " at ";
PrintSourceLocation(frame.return_address());
}
}
AMXDebugSymbol AMXStackFramePrinter::GetCallerSymbol(
const AMXStackFrame &frame) const {
AMXDebugSymbol caller;
if (HaveDebugInfo()) {
caller = debug_info_->GetExactFunction(frame.caller_address());
}
return caller;
}
void AMXStackFramePrinter::PrintArgumentValue(const AMXStackFrame &frame,
const AMXDebugSymbol &arg,
int index) {
std::string tag_name = debug_info_.GetTagName(arg.GetTag());
cell value = GetArgumentValue(frame, index);
if (arg.IsVariable()) {
PrintValue(tag_name, value);
return;
}
stream_ << "@";
PrintAddress(value);
if (arg.IsReference()) {
if (cell *ptr = GetDataPtr(frame.amx(), value)) {
stream_ << " ";
PrintValue(tag_name, *ptr);
}
return;
}
if (arg.IsArray() || arg.IsArrayRef()) {
std::vector<AMXDebugSymbolDim> dims = arg.GetDims();
// Try to filter out non-printable arrays (e.g. non-strings).
// This doesn't work 100% of the time, but it's better than nothing.
if (dims.size() == 1
&& tag_name == "_"
&& debug_info_.GetTagName(dims[0].GetTag()) == "_")
{
std::string string;
bool packed;
GetStringContents(frame.amx(), value, dims[0].GetSize(), string, packed);
stream_ << (packed ? " !" : " ");
static const std::size_t kMaxString = 80;
if (string.length() > kMaxString) {
string.replace(kMaxString, string.length() - kMaxString, "...");
}
stream_ << "\"" << string << "\"";
}
}
}
void AMXStackFramePrinter::PrintArgumentList(const AMXStackFrame &frame) {
AMXStackFrame prev_frame = frame.GetPrevious();
if (prev_frame) {
// Although the symbol's code start address points at the state
// switch code block, function arguments actually use the real
// function address for the code start because in different states
// they may be not the same.
cell arg_address = frame.caller_address();
if (UsesAutomata(frame)) {
arg_address = GetRealFunctionAddress(frame.amx(), frame.caller_address(),
frame.return_address());
}
std::vector<AMXDebugSymbol> args;
int num_actual_args = 0;
if (HaveDebugInfo()) {
std::remove_copy_if(debug_info_->GetSymbols().begin(),
debug_info_->GetSymbols().end(),
std::back_inserter(args),
std::not1(IsArgumentOf(arg_address)));
std::sort(args.begin(), args.end());
num_actual_args = static_cast<int>(args.size());
} else {
static const int kMaxRawArgs = 10;
num_actual_args = std::min(kMaxRawArgs,
GetNumArgs(frame.amx(), prev_frame.address()));
}
// Print a comma-separated list of arguments and their values.
// If debug info is not available argument names are omitted,
// so only the values are printed.
for (int i = 0; i < num_actual_args; i++) {
if (i > 0) {
*stream_ << ", ";
}
if (HaveDebugInfo()) {
PrintArgument(prev_frame, args[i], i);
} else {
PrintArgument(prev_frame, i);
}
}
// If the number of actual arguments passed to the function exceeds
// that obtained via debug info the function may take a variable
// number of arguments. In this case we don't evaluate them but just
// just say that they are present as we can't say anything about
// their names and types.
int num_var_args = GetNumArgs(frame.amx(), prev_frame.address())
- num_actual_args;
if (num_var_args > 0) {
if (num_actual_args != 0) {
*stream_ << ", ";
}
PrintVariableArguments(num_var_args);
}
}
}
void AMXStackFramePrinter::PrintArgumentValue(const AMXStackFrame &frame,
const AMXDebugSymbol &arg,
int index) {
std::string tag_name = debug_info_->GetTagName(arg.GetTag());
cell value = GetArgumentValue(frame.amx(), frame.address(), index);
if (arg.IsVariable()) {
if (tag_name == "bool") {
*stream_ << (value ? "true" : "false");
} else if (tag_name == "Float") {
*stream_ << std::fixed << std::setprecision(5) << amx_ctof(value);
} else {
*stream_ << value;
}
} else {
std::vector<AMXDebugSymbolDim> dims = arg.GetDims();
// For arrays/references we just output their AMX address.
char old_fill = stream_->fill('0');
*stream_ << "@0x" << std::hex << std::setw(kCellWidthChars)
<< value << std::dec;
stream_->fill(old_fill);
if ((arg.IsArray() || arg.IsArrayRef())
&& dims.size() == 1
&& tag_name == "_"
&& debug_info_->GetTagName(dims[0].GetTag()) == "_")
{
std::string string;
bool packed;
GetStringContents(frame.amx(), value, dims[0].GetSize(), string, packed);
*stream_ << (packed ? " !" : " ");
static const std::size_t kMaxString = 30;
if (string.length() > kMaxString) {
string.replace(kMaxString, string.length() - kMaxString, "...");
}
*stream_ << "\"" << string << "\"";
}
}
}
void AMXStackFramePrinter::PrintState(const AMXStackFrame &frame) {
AMXDebugAutomaton automaton = debug_info_->GetAutomaton(
GetStateVarAddress(frame.amx(), frame.caller_address()));
if (automaton) {
std::vector<cell> states = GetStateIDs(frame.amx(), frame.caller_address(),
frame.return_address());
if (!states.empty()) {
*stream_ << "<" << automaton.GetName() << ":";
for (std::size_t i = 0; i < states.size(); i++ ) {
if (i > 0) {
*stream_ << ", ";
}
AMXDebugState state = debug_info_->GetState(automaton.GetID(), states[i]);
if (state) {
*stream_ << state.GetName();
}
}
*stream_ << ">";
}
}
}
bool AMXStackFramePrinter::UsesAutomata(const AMXStackFrame &frame) const {
return GetStateVarAddress(frame.amx(), frame.caller_address()) > 0;
}
void AMXStackFramePrinter::PrintReturnAddress(const AMXStackFrame &frame) {
PrintAddress(frame.return_address());
}
