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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
91 lines
2.7 KiB
C++
91 lines
2.7 KiB
C++
//===-- llvm-undname.cpp - Microsoft ABI name undecorator
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//------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This utility works like the windows undname utility. It converts mangled
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// Microsoft symbol names into pretty C/C++ human-readable names.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Demangle/Demangle.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/InitLLVM.h"
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#include "llvm/Support/Process.h"
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#include "llvm/Support/WithColor.h"
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#include "llvm/Support/raw_ostream.h"
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#include <cstdio>
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#include <cstring>
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#include <iostream>
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#include <string>
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using namespace llvm;
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cl::opt<bool> DumpBackReferences("backrefs", cl::Optional,
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cl::desc("dump backreferences"), cl::Hidden,
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cl::init(false));
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cl::list<std::string> Symbols(cl::Positional, cl::desc("<input symbols>"),
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cl::ZeroOrMore);
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static void msDemangle(const std::string &S) {
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int Status;
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MSDemangleFlags Flags = MSDF_None;
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if (DumpBackReferences)
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Flags = MSDemangleFlags(Flags | MSDF_DumpBackrefs);
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char *ResultBuf =
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microsoftDemangle(S.c_str(), nullptr, nullptr, &Status, Flags);
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if (Status == llvm::demangle_success) {
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outs() << ResultBuf << "\n";
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outs().flush();
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} else {
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WithColor::error() << "Invalid mangled name\n";
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}
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std::free(ResultBuf);
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}
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int main(int argc, char **argv) {
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InitLLVM X(argc, argv);
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cl::ParseCommandLineOptions(argc, argv, "llvm-undname\n");
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if (Symbols.empty()) {
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while (true) {
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std::string LineStr;
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std::getline(std::cin, LineStr);
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if (std::cin.eof())
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break;
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StringRef Line(LineStr);
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Line = Line.trim();
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if (Line.empty() || Line.startswith("#") || Line.startswith(";"))
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continue;
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// If the user is manually typing in these decorated names, don't echo
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// them to the terminal a second time. If they're coming from redirected
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// input, however, then we should display the input line so that the
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// mangled and demangled name can be easily correlated in the output.
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if (!sys::Process::StandardInIsUserInput()) {
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outs() << Line << "\n";
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outs().flush();
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}
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msDemangle(Line);
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outs() << "\n";
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}
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} else {
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for (StringRef S : Symbols) {
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outs() << S << "\n";
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outs().flush();
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msDemangle(S);
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outs() << "\n";
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}
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}
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return 0;
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}
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