1 //===- Error.cpp - system_error extensions for PDB --------------*- C++ -*-===// 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/DebugInfo/PDB/GenericError.h" 11 #include "llvm/Support/ErrorHandling.h" 12 #include "llvm/Support/ManagedStatic.h" 13 14 using namespace llvm; 15 using namespace llvm::pdb; 16 17 // FIXME: This class is only here to support the transition to llvm::Error. It 18 // will be removed once this transition is complete. Clients should prefer to 19 // deal with the Error value directly, rather than converting to error_code. 20 class PDBErrorCategory : public std::error_category { 21 public: 22 const char *name() const noexcept override { return "llvm.pdb"; } 23 std::string message(int Condition) const override { 24 switch (static_cast<pdb_error_code>(Condition)) { 25 case pdb_error_code::unspecified: 26 return "An unknown error has occurred."; 27 case pdb_error_code::type_server_not_found: 28 return "Type server PDB was not found."; 29 case pdb_error_code::dia_sdk_not_present: 30 return "LLVM was not compiled with support for DIA. This usually means " 31 "that you are not using MSVC, or your Visual Studio " 32 "installation is corrupt."; 33 case pdb_error_code::dia_failed_loading: 34 return "DIA is only supported when using MSVC."; 35 case pdb_error_code::invalid_utf8_path: 36 return "The PDB file path is an invalid UTF8 sequence."; 37 case pdb_error_code::signature_out_of_date: 38 return "The signature does not match; the file(s) might be out of date."; 39 } 40 llvm_unreachable("Unrecognized generic_error_code"); 41 } 42 }; 43 44 static llvm::ManagedStatic<PDBErrorCategory> PDBCategory; 45 const std::error_category &llvm::pdb::PDBErrCategory() { return *PDBCategory; } 46 47 char PDBError::ID; 48