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 _do_message { 21 public: 22 virtual const char* name() const; 23 virtual std::string message(int ev) const; 24 virtual error_condition default_error_condition(int ev) const; 25 }; 26 } // namespace 27 28 const char *_readobj_error_category::name() const { 29 return "llvm.readobj"; 30 } 31 32 std::string _readobj_error_category::message(int ev) const { 33 switch (ev) { 34 case readobj_error::success: return "Success"; 35 case readobj_error::file_not_found: 36 return "No such file."; 37 case readobj_error::unsupported_file_format: 38 return "The file was not recognized as a valid object file."; 39 case readobj_error::unrecognized_file_format: 40 return "Unrecognized file type."; 41 case readobj_error::unsupported_obj_file_format: 42 return "Unsupported object file format."; 43 case readobj_error::unknown_symbol: 44 return "Unknown symbol."; 45 default: 46 llvm_unreachable("An enumerator of readobj_error does not have a message " 47 "defined."); 48 } 49 } 50 51 error_condition _readobj_error_category::default_error_condition(int ev) const { 52 if (ev == readobj_error::success) 53 return errc::success; 54 return errc::invalid_argument; 55 } 56 57 namespace llvm { 58 const error_category &readobj_category() { 59 static _readobj_error_category o; 60 return o; 61 } 62 } // namespace llvm 63
