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//===-- llvm-undname.cpp - Microsoft ABI name undecorator
//------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This utility works like the windows undname utility. It converts mangled
// Microsoft symbol names into pretty C/C++ human-readable names.
//
//===----------------------------------------------------------------------===//
#include "llvm/ADT/StringRef.h"
#include "llvm/Demangle/Demangle.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/InitLLVM.h"
#include "llvm/Support/Process.h"
#include "llvm/Support/raw_ostream.h"
#include <cstdio>
#include <cstring>
#include <iostream>
#include <string>
using namespace llvm;
cl::opt<bool> DumpBackReferences("backrefs", cl::Optional,
cl::desc("dump backreferences"), cl::Hidden,
cl::init(false));
cl::list<std::string> Symbols(cl::Positional, cl::desc("<input symbols>"),
cl::ZeroOrMore);
static void demangle(const std::string &S) {
int Status;
MSDemangleFlags Flags = MSDF_None;
if (DumpBackReferences)
Flags = MSDemangleFlags(Flags | MSDF_DumpBackrefs);
char *ResultBuf =
microsoftDemangle(S.c_str(), nullptr, nullptr, &Status, Flags);
if (Status == llvm::demangle_success) {
outs() << ResultBuf << "\n";
outs().flush();
} else {
errs() << "Error: Invalid mangled name\n";
}
std::free(ResultBuf);
}
int main(int argc, char **argv) {
InitLLVM X(argc, argv);
cl::ParseCommandLineOptions(argc, argv, "llvm-undname\n");
if (Symbols.empty()) {
while (true) {
std::string LineStr;
std::getline(std::cin, LineStr);
if (std::cin.eof())
break;
StringRef Line(LineStr);
Line = Line.trim();
if (Line.empty() || Line.startswith("#") || Line.startswith(";"))
continue;
// If the user is manually typing in these decorated names, don't echo
// them to the terminal a second time. If they're coming from redirected
// input, however, then we should display the input line so that the
// mangled and demangled name can be easily correlated in the output.
if (!sys::Process::StandardInIsUserInput()) {
outs() << Line << "\n";
outs().flush();
}
demangle(Line);
outs() << "\n";
}
} else {
for (StringRef S : Symbols) {
outs() << S << "\n";
outs().flush();
demangle(S);
outs() << "\n";
}
}
return 0;
}
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