1 //===- Error.cpp - system_error extensions for llvm-readobj -----*- 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 // This defines a new error_category for the llvm-readobj tool. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "Error.h" 15 #include "llvm/Support/ErrorHandling.h" 16 17 using namespace llvm; 18 19 namespace { 20 class _readobj_error_category : public std::error_category { 21 public: 22 const char* name() const LLVM_NOEXCEPT override; 23 std::string message(int ev) const override; 24 }; 25 } // namespace 26 27 const char *_readobj_error_category::name() const LLVM_NOEXCEPT { 28 return "llvm.readobj"; 29 } 30 31 std::string _readobj_error_category::message(int EV) const { 32 switch (static_cast<readobj_error>(EV)) { 33 case readobj_error::success: return "Success"; 34 case readobj_error::file_not_found: 35 return "No such file."; 36 case readobj_error::unsupported_file_format: 37 return "The file was not recognized as a valid object file."; 38 case readobj_error::unrecognized_file_format: 39 return "Unrecognized file type."; 40 case readobj_error::unsupported_obj_file_format: 41 return "Unsupported object file format."; 42 case readobj_error::unknown_symbol: 43 return "Unknown symbol."; 44 } 45 llvm_unreachable("An enumerator of readobj_error does not have a message " 46 "defined."); 47 } 48 49 namespace llvm { 50 const std::error_category &readobj_category() { 51 static _readobj_error_category o; 52 return o; 53 } 54 } // namespace llvm 55
