1 //===- Error.cpp - system_error extensions for Object -----------*- 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 Object library. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "llvm/Object/Error.h" 15 #include "llvm/Support/ErrorHandling.h" 16 #include "llvm/Support/ManagedStatic.h" 17 18 using namespace llvm; 19 using namespace object; 20 21 namespace { 22 class _object_error_category : public std::error_category { 23 public: 24 const char* name() const LLVM_NOEXCEPT override; 25 std::string message(int ev) const override; 26 }; 27 } 28 name() const29const char *_object_error_category::name() const LLVM_NOEXCEPT { 30 return "llvm.object"; 31 } 32 message(int EV) const33std::string _object_error_category::message(int EV) const { 34 object_error E = static_cast<object_error>(EV); 35 switch (E) { 36 case object_error::arch_not_found: 37 return "No object file for requested architecture"; 38 case object_error::invalid_file_type: 39 return "The file was not recognized as a valid object file"; 40 case object_error::parse_failed: 41 return "Invalid data was encountered while parsing the file"; 42 case object_error::unexpected_eof: 43 return "The end of the file was unexpectedly encountered"; 44 case object_error::string_table_non_null_end: 45 return "String table must end with a null terminator"; 46 case object_error::invalid_section_index: 47 return "Invalid section index"; 48 case object_error::bitcode_section_not_found: 49 return "Bitcode section not found in object file"; 50 case object_error::elf_invalid_dynamic_table_size: 51 return "Invalid dynamic table size"; 52 case object_error::macho_small_load_command: 53 return "Mach-O load command with size < 8 bytes"; 54 case object_error::macho_load_segment_too_many_sections: 55 return "Mach-O segment load command contains too many sections"; 56 case object_error::macho_load_segment_too_small: 57 return "Mach-O segment load command size is too small"; 58 } 59 llvm_unreachable("An enumerator of object_error does not have a message " 60 "defined."); 61 } 62 63 static ManagedStatic<_object_error_category> error_category; 64 object_category()65const std::error_category &object::object_category() { 66 return *error_category; 67 } 68