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------------------------------------------------------------------------ r292467 | compnerd | 2017-01-18 18:58:46 -0800 (Wed, 18 Jan 2017) | 7 lines llvm-cxxfilt: filter out invalid manglings c++filt does not attempt to demangle symbols which do not match its expected format. This means that the symbol must start with _Z or ___Z (block invocation function extension). Any other symbols are returned as is. Note that this is different from the behaviour of __cxa_demangle which will demangle fragments. ------------------------------------------------------------------------ git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_40@292861 91177308-0d34-0410-b5e6-96231b3b80d8
37 lines
1.1 KiB
C++
37 lines
1.1 KiB
C++
//===-- llvm-c++filt.cpp --------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Demangle/Demangle.h"
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#include "llvm/Support/raw_ostream.h"
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#include <cstdlib>
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#include <iostream>
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using namespace llvm;
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static void demangle(llvm::raw_ostream &OS, const std::string &Mangled) {
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int Status;
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char *Demangled = nullptr;
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if ((Mangled.size() >= 2 && Mangled.compare(0, 2, "_Z")) ||
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(Mangled.size() >= 4 && Mangled.compare(0, 4, "___Z")))
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Demangled = itaniumDemangle(Mangled.c_str(), nullptr, nullptr, &Status);
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OS << (Demangled ? Demangled : Mangled) << '\n';
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free(Demangled);
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}
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int main(int argc, char **argv) {
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if (argc == 1)
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for (std::string Mangled; std::getline(std::cin, Mangled);)
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demangle(llvm::outs(), Mangled);
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else
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for (int I = 1; I < argc; ++I)
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demangle(llvm::outs(), argv[I]);
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return EXIT_SUCCESS;
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}
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