zig/deps/lld/COFF/Strings.cpp

36 lines
943 B
C++

//===- Strings.cpp -------------------------------------------------------===//
//
// The LLVM Linker
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "Strings.h"
#include <mutex>
#if defined(_MSC_VER)
#include <Windows.h>
#include <DbgHelp.h>
#pragma comment(lib, "dbghelp.lib")
#endif
using namespace lld;
using namespace lld::coff;
using namespace llvm;
Optional<std::string> coff::demangleMSVC(StringRef S) {
#if defined(_MSC_VER)
// UnDecorateSymbolName is not thread-safe, so we need a mutex.
static std::mutex Mu;
std::lock_guard<std::mutex> Lock(Mu);
char Buf[4096];
if (S.startswith("?"))
if (size_t Len = UnDecorateSymbolName(S.str().c_str(), Buf, sizeof(Buf), 0))
return std::string(Buf, Len);
#endif
return None;
}