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Rafael Espindolab940b662016-09-06 19:16:48 +00001//===-- llvm-c++filt.cpp --------------------------------------------------===//
2//
3// The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include "llvm/Demangle/Demangle.h"
Saleem Abdulrasoola63fd042017-01-20 04:25:26 +000011#include "llvm/Support/CommandLine.h"
Saleem Abdulrasoold3cbf262017-01-20 05:33:22 +000012#include "llvm/Support/PrettyStackTrace.h"
13#include "llvm/Support/Signals.h"
Davide Italianoc37eb112016-09-27 18:50:30 +000014#include "llvm/Support/raw_ostream.h"
Saleem Abdulrasool70918202016-11-13 20:43:38 +000015#include <cstdlib>
16#include <iostream>
Rafael Espindolab940b662016-09-06 19:16:48 +000017
18using namespace llvm;
19
Saleem Abdulrasool4c33f7f2017-01-21 02:36:26 +000020enum Style {
21 Auto, ///< auto-detect mangling
22 GNU, ///< GNU
23 Lucid, ///< Lucid compiler (lcc)
24 ARM,
25 HP, ///< HP compiler (xCC)
26 EDG, ///< EDG compiler
27 GNUv3, ///< GNU C++ v3 ABI
28 Java, ///< Java (gcj)
29 GNAT ///< ADA copiler (gnat)
30};
31static cl::opt<Style>
32 Format("format", cl::desc("decoration style"),
33 cl::values(clEnumValN(Auto, "auto", "auto-detect style"),
34 clEnumValN(GNU, "gnu", "GNU (itanium) style")),
35 cl::init(Auto));
36static cl::alias FormatShort("s", cl::desc("alias for --format"),
37 cl::aliasopt(Format));
38
Saleem Abdulrasoola63fd042017-01-20 04:25:26 +000039static cl::opt<bool>
40 Types("types",
41 cl::desc("attempt to demangle types as well as function names"),
42 cl::init(false));
43static cl::alias TypesShort("t", cl::desc("alias for --types"),
44 cl::aliasopt(Types));
45
46static cl::list<std::string>
47Decorated(cl::Positional, cl::desc("<mangled>"), cl::ZeroOrMore);
48
Saleem Abdulrasoolc8bcda22017-01-19 02:58:46 +000049static void demangle(llvm::raw_ostream &OS, const std::string &Mangled) {
Saleem Abdulrasool70918202016-11-13 20:43:38 +000050 int Status;
Saleem Abdulrasoolc8bcda22017-01-19 02:58:46 +000051 char *Demangled = nullptr;
Saleem Abdulrasoola63fd042017-01-20 04:25:26 +000052 if (Types || ((Mangled.size() >= 2 && Mangled.compare(0, 2, "_Z")) ||
53 (Mangled.size() >= 4 && Mangled.compare(0, 4, "___Z"))))
Saleem Abdulrasoolc8bcda22017-01-19 02:58:46 +000054 Demangled = itaniumDemangle(Mangled.c_str(), nullptr, nullptr, &Status);
Saleem Abdulrasool70918202016-11-13 20:43:38 +000055 OS << (Demangled ? Demangled : Mangled) << '\n';
56 free(Demangled);
57}
58
Rafael Espindolab940b662016-09-06 19:16:48 +000059int main(int argc, char **argv) {
Saleem Abdulrasoolf1790c22017-01-20 05:27:09 +000060 sys::PrintStackTraceOnErrorSignal(argv[0]);
61 PrettyStackTraceProgram X(argc, argv);
62
63 cl::ParseCommandLineOptions(argc, argv, "llvm symbol undecoration tool\n");
Saleem Abdulrasoola63fd042017-01-20 04:25:26 +000064
65 if (Decorated.empty())
Saleem Abdulrasool70918202016-11-13 20:43:38 +000066 for (std::string Mangled; std::getline(std::cin, Mangled);)
Saleem Abdulrasoolc8bcda22017-01-19 02:58:46 +000067 demangle(llvm::outs(), Mangled);
Saleem Abdulrasool70918202016-11-13 20:43:38 +000068 else
Saleem Abdulrasoola63fd042017-01-20 04:25:26 +000069 for (const auto &Symbol : Decorated)
70 demangle(llvm::outs(), Symbol);
Saleem Abdulrasool70918202016-11-13 20:43:38 +000071
72 return EXIT_SUCCESS;
Rafael Espindolab940b662016-09-06 19:16:48 +000073}