Error.cpp revision 36b56886974eae4f9c5ebc96befd3e7bfe5de338
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 17using namespace llvm; 18 19namespace { 20class _readobj_error_category : public error_category { 21public: 22 const char* name() const override; 23 std::string message(int ev) const override; 24 error_condition default_error_condition(int ev) const override; 25}; 26} // namespace 27 28const char *_readobj_error_category::name() const { 29 return "llvm.readobj"; 30} 31 32std::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 51error_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 57namespace llvm { 58const error_category &readobj_category() { 59 static _readobj_error_category o; 60 return o; 61} 62} // namespace llvm 63